Ocean subsurface water body in-situ water sample single-tube collection system

Abstract

The utility model relates to an ocean subsurface water in-situ water sample single-pipe collection system, the ocean subsurface water in-situ water sample single-pipe collection system comprises a heavy hammer, a flexible water taking pipe, a safety rope, a water pump and an operation bin, the upper part of the flexible water taking pipe is hermetically connected with the operation bin and is communicated with the atmosphere, and the operation bin is partially sunk into seawater; the minimum seawater pressure difference meets the requirement that seawater is extracted to the operation bin through the flexible water taking pipe for operation, the periphery of the operation bin is sealed, and the water taking position of the lower portion of the flexible water taking pipe is aligned with the set water taking depth; the upper end of the safety rope is installed at the bottom of the operation bin, the flexible water taking pipe is fixed to the safety rope, the counter weight is hung at the lower end of the safety rope, the water pump is installed in the operation bin, the waste water bin is arranged at the low position in the operation bin, the flexible water taking pipe is a single pipe, and a plurality of water inlets designed according to the water taking height are formed in the flexible water taking pipe. And each water inlet is aligned with a set water taking position. The device is simple in structure, convenient to use, low in cost and small in water sample distortion.

Description

Technical Field

[0001] The present application relates to a single-tube collection system for in-situ water samples of marine subsurface water bodies, in particular to a single-tube collection system for in-situ water samples in laser profile remote sensing verification of marine subsurface water bodies. Background Art

[0002] With the rapid development of remote sensing technology, ocean satellite remote sensing inversion technology has gradually entered the research level of stereoscopic observation of the longitudinal depth of the ocean from the sea surface water color. In the stereoscopic observation of the longitudinal depth of the ocean, the more advanced remote sensing means is water laser profile detection. The inversion technology of ocean depth profile information must rely on experimental verification. Since the water laser profile detection technology is still in the initial research stage, according to literature retrieval, the current experimental verification method is usually: a portable self-contained ocean real-time in-situ water parameter measuring instrument, which is accompanied by a submersible or sunk by a mother ship to enter the underwater operation. However, due to the high water depth and high water pressure, the instrument manufacturing process is required to be high, so the cost is very expensive; at the same time, the underwater real-time portable self-contained in-situ measurement instrument is restricted by technological development, and the parameters and accuracy of the water quality that can be measured are limited. In addition, it is risky to carry out experimental operations directly at sea with expensive instruments. Some water parameters are calculated by measuring the backscatter spectrum. There is a certain gap in accuracy and stability between on-site detection and laboratory analysis instrument measurement. At present, the implementation methods of seawater sampling and analysis are relatively mature. One sampling method is to sink the sampler into the water to a predetermined depth, open the sampler door manually or electrically to take water, and then lift the sampler to the ship for instrument detection after closing the door. The depth is usually within 10 meters, and the maximum depth is 50 to 60 meters. In addition, only 500-1000ml is sampled each time. If the sampling is not enough, re-sampling is required. The operation is also troublesome and risky at a large depth. Another sampling method is to complete it through pipes and water pumps, but due to the use of water pumps, the microorganisms in the sample water will change their natural grouping morphology and distribution state under the action of mechanical force, and mechanical agitation may affect the sample water temperature and composition (such as the introduction of residual impurities in the water pump). This distortion will have a serious impact on water sample analysis. Summary of the invention

[0003] This application aims to address the above-mentioned problems existing in the in-situ water sampling for the existing marine water depth profile component verification. By artificially creating the seawater pressure differential potential energy and utilizing the seawater pressure differential potential energy and the seawater flow characteristics, the seawater pressure differential potential energy is converted into the kinetic energy of the seawater flow. The in-situ water samples at the test point are automatically lifted to the sea surface through a special water sampling pipe using the kinetic energy of the seawater flow, thereby reducing the difficulty of obtaining deep water samples and facilitating remote sensing scientific research to accurately obtain a large number of water samples for deep analysis.

[0004] The technical solution adopted by the present application to solve the above technical problems includes: a single-tube in-situ water sample collection system for sub-surface water bodies in the ocean, characterized in that the single-tube in-situ water sample collection system for sub-surface water bodies in the ocean includes a weight, a flexible water intake pipe, a safety rope, a water pump, and an operation chamber. The upper part of the flexible water intake pipe is sealed and connected to the operation chamber and connected to the atmosphere. The operation chamber is partially sunk into the seawater so that the minimum seawater pressure difference (from the sea level to the highest position of the flexible water intake pipe in the operation chamber) is sufficient to extract seawater through the flexible water intake pipe to the operation chamber for operation. The operation chamber is sealed on all sides, and the water intake position of the lower part of the flexible water intake pipe is Aligned with the set water intake depth; the upper end of the safety rope is installed at the bottom of the operation chamber, the flexible water intake pipe is fixed on the safety rope, the lower end of the safety rope is hung with a heavy hammer, the water pump is installed in the operation chamber, and a wastewater tank is set at the lower part of the operation chamber. The flexible water intake pipe is a single pipe, and the flexible water intake pipe is provided with a number of water inlets designed according to the water intake height, and each water inlet is aligned with the set water intake position, for example, the lowest water inlet is the same as the deepest water intake depth, the second lowest water inlet is the same as the second water intake depth... The top water inlet is the same as the highest (closest to the sea level) water intake depth. This application uses the seawater pressure difference to perform the water intake operation at the set water intake position after the flexible water intake pipe sinks to each water inlet corresponding to the set water intake position (depth). It is simple, convenient, low-cost, and the water intake is relatively stable. It does not require power drive, and the sample water is not stirred by the water pump. The microorganisms and water temperature in the sample water are not affected, and it is not easy to introduce residual impurities in the water pump, and the water sample has a high degree of fidelity.

[0005] The present application is also provided with a water intake controller and a solenoid valve. The flexible water intake pipe has a flexible inner tube, a flexible outer jacket is mounted outside the flexible inner tube, the flexible inner tube is made of a flexible insulation material, and insulation material is filled between the flexible inner tube and the flexible outer jacket. The flexible inner tube is provided with a plurality of water inlets, each of which is connected to the flexible inner tube through a corresponding solenoid valve. The water intake controller is connected to each solenoid valve to control the opening and closing operation of the corresponding solenoid valve, thereby realizing the collection or closing of in-situ water at a corresponding depth.

[0006] The water pump is used to pump excess water in the wastewater tank into the sea or to transport sampled water to a mother ship.

[0007] When there is no requirement for smoothness in water sample collection, the present application may also provide a relay pump, and the seawater samples extracted by the flexible water intake pipe are transported to the mother ship through the relay pump.

[0008] Compared with the prior art, the present invention has the following advantages and effects: simple structure, convenient use, low cost and small water sample distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of single-pipe water intake in an embodiment of the present application.

[0010] Figure 2This is another structural schematic diagram of a single-pipe water intake according to an embodiment of the present application.

[0011] Figure 3 It is a partially enlarged schematic diagram of an embodiment of the present application.

[0012] In the figure: 1—weight, 2—flexible water intake pipe, 21—flexible inner pipe, 211—water outlet of flexible inner pipe, 212—water inlet of flexible inner pipe (also water inlet of flexible water intake pipe), 22—flexible outer jacket, 3—safety rope, 4—water pump, 41—water pump inlet pipe, 42—water pump discharge pipe, 5—relay pump, 6—operation chamber, 61—water intake controller, 62—highest water intake position, 63—wastewater chamber, 7—insulation material, 8—control cable, 9—solenoid valve, H—minimum seawater pressure difference, N—number of water inlets. DETAILED DESCRIPTION

[0013] The present application will be further described in detail below in conjunction with the accompanying drawings and through examples. The following examples are intended to explain the present application but the present application is not limited to the following examples.

[0014] See also Figure 1 to Figure 3 The embodiment of the present application is basically composed of five parts: a weight 1, a flexible water intake pipe 2, a safety rope 3, a water pump 4, and an operating chamber 6. The core idea of ​​the present application is to design a flexible water intake pipe 2, the upper part of which is sealed and connected to the operating chamber 6, and the lower part of the operating chamber 6 is controlled by the mother ship's rope to sink into the sea water to a specified depth, and the minimum seawater pressure difference H between the sea level and the highest water intake position set in the operating chamber 6 (the highest position of the flexible water intake pipe 2) can satisfy the requirement of obtaining seawater through the flexible water intake pipe 2 and the time spent meets the requirements), the operating chamber 6 is sealed on all sides and seawater will not enter, the upper part of the operating chamber 6 is connected to the atmosphere, and is connected to the atmosphere through the upper end of the flexible water intake pipe 2, the water intake position (water inlet) of the lower part of the flexible water intake pipe 2 is aligned with the set water intake depth, and the controlled connected water intake depth (the first water inlet 212-1 corresponds to the set first water intake depth, and the second water inlet 212-2 corresponds to the set first water intake depth). At the second water intake depth, ... the Nth water inlet 212-N corresponds to the Nth water intake position), artificially create seawater pressure difference potential energy to ensure that sufficient seawater pressure difference is formed to drive deep seawater to be lifted into the operating chamber 6. At the same time, the structural design ensures that the operating chamber 6 will not allow seawater to enter the operating chamber 6 while the seawater pressure difference is formed; the upper end of the safety cable 3 is connected to the bottom of the operating chamber 6, and the flexible water intake pipe 2 is fixed on the safety cable 3, which can be conveniently stored and operated as the safety cable 3 is retracted and released. The lower end of the safety cable 3 is hung with a heavy hammer 1 to ensure that the safety cable 3 and the flexible water intake pipe 2 are basically vertical to the water surface during operation; the function of the water pump 4 is to pump the excess water in the wastewater tank 63 into the sea or transport the sampled water to the mother ship (when there is no requirement for stability in water sample collection).

[0015] The flexible water intake pipe 2 described in the present application is in the form of a single pipeline, and a plurality of water inlets are controlled by electromagnetic valves to transport water in an orderly manner through the single pipe to the operating chamber 6 .

[0016] A flexible inner tube 21 is arranged in the middle of the flexible water intake pipe 2 of the single-pipe structure. The flexible inner tube 21 is made of a flexible insulation material and is filled with insulation material 7 outside the flexible inner tube 21. It is protected by a flexible outer jacket 22. A control cable 8 is buried in the middle of the flexible water intake pipe 2. The upper end of the flexible inner tube 21 is a water outlet 211, and a plurality of water inlets 212 (for example, N, arranged from bottom to top as 1, 2...N) designed according to the water intake height are arranged in the middle and lower parts. Each water inlet 212 is provided with a solenoid valve 9 controlled to open and close by a water intake controller 61. The water inlet 212 is connected to the flexible inner tube 21 through a corresponding solenoid valve. The water intake controller 61 is connected to each solenoid valve 9 through a control cable 8 to realize the opening and closing operation of the corresponding solenoid valve 9. By controlling the opening and closing of the solenoid valves in different water depths, the collection or closing of in-situ water at the corresponding depth is realized. If the water sample needs to be directly lifted to the mother ship for analysis and there is no requirement for the stability of the water sample collection, one method is to directly transport the sampled water that meets the requirements obtained by the flexible water intake pipe 2 to the mother ship through a water pump 4, such as Figure 1 Another method is to add a relay pump 5, such as Figure 2 shown.

[0017] The collection method of the embodiment of the present application is as follows:

[0018] S1: The lower part of the operation chamber 6 sinks to a set depth, so that each water inlet 212 corresponds to the set water depth, and the water intake position I=1;

[0019] S2: Open the first solenoid valve so that the corresponding water inlet 212-I of the solenoid valve is connected with the flexible inner tube 21, and water is taken stably for a period of time (during this period, seawater is directly discharged into the wastewater tank 63, for example, seawater greater than 2 times the capacity of the flexible inner tube is discharged), and then it can be ensured that the seawater coming out of the water outlet 211 is the seawater of the corresponding water inlet;

[0020] S3: Connect the water outlet 211 of the flexible inner tube 21 to the detection instrument for water extraction and detection, and close the first solenoid valve after the water extraction is completed;

[0021] S4: After the detection, the excess seawater is discharged into the wastewater tank 63, I=I+1, if I is greater than N, all the detection is completed and exit, otherwise go to step S2.

[0022] The S3 step may include:

[0023] S31: Connect the water outlet 211 of the flexible inner tube 21 to the water inlet pipe of the water pump;

[0024] S32: Connect the water pump discharge pipe to the detection instrument on the mother ship.

[0025] The core idea of ​​this application is to utilize the flow characteristics of water and the energy conversion of seawater pressure difference (the potential energy of seawater pressure difference is converted into the kinetic energy of seawater flow), and to directly lift deep seawater to the sea surface by designing a flexible water intake pipe, thereby solving the engineering problem of in-situ water intake in satellite laser remote sensing verification experiments and the problem of distortion of certain parameters of water samples that may be caused by the use of a water pump. The single-tube in-situ water sample collection system of the marine subsurface water body of this application has a simple structure, low cost, and is easy to use. The amount of sample water collected is not limited, and the factors affecting the distortion of water sample parameters are reduced. The collected water samples can be used for real-time detection by portable instruments, and can also be accurately analyzed by professional analysis instruments for related water parameters. Since the water samples obtained are in-situ, the portable detector can also be compared and calibrated. This application can also avoid the risk of expensive instruments entering the sea for real-time operation.

Claims

1. An in-situ water sample single-tube collection system for subsurface water bodies in the ocean, characterized by: The single-tube in-situ water sample collection system for subsurface water bodies in the ocean includes a weight, a flexible water intake pipe, a safety cable, a water pump, and an operating chamber. The upper part of the flexible water intake pipe is sealed and connected to the operating chamber and communicates with the atmosphere. The operating chamber is partially sunk into the seawater so that the minimum seawater pressure difference is sufficient to extract seawater through the flexible water intake pipe to the operating chamber for operation. The operating chamber is sealed on all sides, and the water intake position at the lower part of the flexible water intake pipe is aligned with the set water intake depth; the upper end of the safety cable is installed at the bottom of the operating chamber, the flexible water intake pipe is fixed on the safety cable, the lower end of the safety cable is hung with a weight, the water pump is installed in the operating chamber, and a wastewater chamber is provided at a low position in the operating chamber. The flexible water intake pipe is a single tube, and the flexible water intake pipe is provided with a plurality of water inlets designed according to the water intake height, and each water inlet is aligned with the set water intake position.

2. The single-tube in-situ water sample collection system for subsurface ocean water according to claim 1 is characterized by: A water intake controller and a solenoid valve are also provided. The flexible water intake pipe has a flexible inner tube, a flexible outer tube is provided outside the flexible inner tube, the flexible inner tube is made of a flexible thermal insulation material, and thermal insulation material is filled between the flexible inner tube and the flexible outer tube. The flexible inner tube is provided with a plurality of water inlets designed according to the water intake height, each water inlet is connected to the flexible inner tube through a corresponding solenoid valve, and the water intake controller is connected to each solenoid valve.

3. The single-tube in-situ water sample collection system for subsurface ocean water according to claim 1 is characterized by: The water pump is used to pump excess water in the wastewater tank into the sea or to transport sampled water to a mother ship.

4. The single-tube in-situ water sample collection system for subsurface ocean water according to claim 1 is characterized by: A relay pump is also provided, and the seawater samples extracted by the flexible water intake pipe are transported to the mother ship through the relay pump.

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