Sampling device for seawater detection and analysis

Abstract

The utility model belongs to the technical field of marine environment monitoring equipment, and provides a sampling device for seawater detection and analysis, which comprises a cylinder main body with a built-in cavity, an overflow port communicated with the cavity of the cylinder main body is arranged at the top of the cylinder main body, and a liquid inlet and a liquid extraction port communicated with the cavity of the cylinder main body are arranged at the bottom of the cylinder main body; a liquid inlet pipe which is communicated with the liquid inlet and extends into the cavity of the barrel main body is arranged at the liquid inlet, a liquid extraction pipe which is communicated with the liquid extraction opening and extends into the cavity of the barrel main body is arranged at the liquid extraction opening, a liquid inlet hole penetrating through the side wall of the liquid inlet pipe is formed in the liquid inlet pipe, and a liquid extraction hole penetrating through the side wall of the liquid extraction pipe is formed in the liquid extraction pipe; the height of the liquid pumping hole in the axial direction is larger than that of the liquid inlet hole in the axial direction. The sampling device for seawater detection and analysis is simple in structure and convenient to use, impurities such as floating objects and silt in seawater sampling are reduced, detection and analysis of seawater samples are facilitated, and the sampling and analysis efficiency is improved.

Description

A sampling device for seawater detection and analysis Technical Field

[0001] This utility model belongs to the technical field of marine environmental monitoring equipment, and specifically relates to a sampling device for seawater detection and analysis. Background Technology

[0002] Marine ecological environment monitoring often requires seawater sampling and analysis to determine seawater composition and pollution levels, thereby understanding the marine ecological environment. Currently, seawater sampling commonly uses water samplers or pumps. However, due to the high levels of floating debris and sediment in seawater, these samples are easily contaminated with large amounts of these impurities during sampling. This often necessitates post-processing to remove these impurities before analysis, and may even require repeated sampling, severely impacting the efficiency of sampling and subsequent analysis. Furthermore, to prevent cross-contamination between samples from different areas, the water sampler must be manually cleaned after each sampling to remove residual floating debris, sediment, and silt from its inner wall. This process is time-consuming, labor-intensive, and detrimental to the efficiency of seawater sampling and subsequent analysis.

[0003] Therefore, it is necessary to design a sampling device for seawater monitoring and analysis that can at least solve some of the above problems and defects. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model proposes a sampling device for seawater detection and analysis. It has a simple structure and is easy to use, reduces impurities such as floating objects and silt in seawater sampling, facilitates the detection and analysis of seawater samples, and improves sampling and analysis efficiency.

[0005] The technical solution of this utility model is:

[0006] This utility model proposes a sampling device for seawater detection and analysis, including a cylindrical body with a built-in cavity. The top of the cylindrical body is provided with an overflow port connected to the cavity, and the bottom is provided with a liquid inlet and a liquid extraction port connected to the cavity.

[0007] The inlet is provided with an inlet pipe that is connected to it and extends into the cavity of the cylinder body, and the outlet is provided with an outlet pipe that is connected to it and extends into the cavity of the cylinder body. The inlet pipe is provided with an inlet hole that penetrates its side wall, and the outlet pipe is provided with an outlet hole that penetrates its side wall. The height of the outlet hole in the axial direction is greater than the height of the inlet hole in the axial direction.

[0008] Preferably, the liquid inlet holes are arranged at intervals along the circumferential direction, and at least one set is arranged along the axis of the liquid inlet pipe; the liquid extraction holes are arranged at intervals along the circumferential direction, and at least one set is arranged along the axis of the liquid extraction pipe.

[0009] Preferably, the length of the suction tube is greater than the length of the inlet tube;

[0010] The length of the liquid extraction tube is between 2 / 3 and 3 / 4 of the axial length of the internal cavity of the cylinder body, and the length of the liquid inlet tube is between 1 / 4 and 1 / 3 of the axial length of the internal cavity of the cylinder body.

[0011] Preferably, the bottom of the cylinder body is also provided with a cleaning port communicating with its cavity, and a cleaning pipe communicating with the cleaning port and extending into the cavity of the cylinder body is provided at the cleaning port;

[0012] The cleaning pipe is provided with cleaning holes penetrating its sidewalls. Several cleaning holes are arranged at intervals along the circumferential direction, and at least one set is arranged along the axial direction of the cleaning pipe.

[0013] Preferably, the length of the cleaning tube is greater than the length of the extraction tube, and the height of the cleaning hole in the axial direction is greater than the height of the extraction hole in the axial direction.

[0014] Preferably, the bottom of the cylinder body is further provided with a funnel-shaped slag discharge port that communicates with its cavity, and the minimum diameter of the slag discharge port is larger than the diameter of the liquid inlet and the liquid extraction port.

[0015] Preferably, a liquid level sensor is fixedly connected to the side wall of the cylinder body to monitor the liquid level inside the cylinder body cavity.

[0016] This utility model has the following advantages and effects compared with the prior art:

[0017] (1) The main body of the tube is equipped with an inlet pipe and a suction pipe, and the height of the suction hole of the suction pipe is greater than the height of the inlet hole of the inlet pipe. This avoids the extraction of impurities such as mud and silt deposited at the bottom during the extraction of seawater samples through the suction hole of the suction pipe, thereby reducing the impurity content in the seawater sample and eliminating the need for subsequent processing or repeated sampling, thus improving the efficiency of detection and analysis.

[0018] (2) The main body of the cylinder is equipped with a cleaning tube. The inner wall of the main body can be flushed and cleaned through the cleaning hole of the cleaning tube, so as to avoid the contamination of the sample by the impurities remaining on the inner wall of the main body. It also eliminates the need for manual cleaning, thereby improving the sampling efficiency. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the sampling device for seawater detection and analysis in an embodiment of this utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of the sampling device for seawater detection and analysis in an embodiment of this utility model.

[0021] Reference numerals in the attached diagram: 1. Main body of cylinder; 11. Overflow port; 12. Liquid inlet; 13. Liquid extraction port; 14. Cleaning port; 15. Slag discharge port; 2. Liquid inlet pipe; 21. Liquid inlet hole; 3. Liquid extraction pipe; 31. Liquid extraction hole; 4. Cleaning pipe; 41. Cleaning hole; 5. Liquid level sensor. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model, it will now be further described in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this utility model.

[0023] Example:

[0024] As shown in Figures 1 and 2, this utility model provides a sampling device for seawater detection and analysis, which includes a cylindrical body 1 with a built-in cavity. The top of the cylindrical body 1 is provided with an overflow port 11 that communicates with the cavity to ensure normal seawater sample intake. Optionally, in some embodiments, an overflow valve that can control the opening and closing of the overflow port 11 is provided.

[0025] The bottom of the cylinder body 1 is provided with a liquid inlet 12 and a liquid outlet 13 that are connected to its cavity. The liquid inlet 12 is provided with a liquid inlet pipe 2 that is connected to it and extends into the cavity of the cylinder body 1, and the liquid outlet 13 is provided with a liquid outlet pipe 3 that is connected to it and extends into the cavity of the cylinder body 1. The inlet pipe 2 is provided with an inlet hole 21 that penetrates its side wall, and the extraction pipe 3 is provided with an extraction hole 31 that penetrates its side wall. The height of the extraction hole 31 in the axial direction is greater than the height of the inlet hole 21 in the axial direction. That is, the extraction hole 31 is located above the inlet hole 21, so that the seawater sample extracted through the extraction pipe 3 is located in the middle area of ​​the main body 1, which is neither the top (containing more seawater floating objects) nor the bottom (containing more silt and sediment). It should be noted that in order to ensure that the extracted seawater sample is always in the middle area that does not include the top and bottom areas, the highest position of the liquid level in the cavity of the main body 1 is always higher than the top of the extraction pipe 3. Of course, in actual operation, liquid can also be introduced simultaneously through the inlet pipe 2 during the extraction process, that is, the inlet 12 is kept open.

[0026] Specifically, the liquid inlet holes 21 are arranged at intervals along the circumference and at least one set is arranged along the axis of the liquid inlet pipe 2, and the liquid extraction holes 31 are arranged at intervals along the circumference and at least one set is arranged along the axis of the liquid extraction pipe 3, so as to improve the efficiency of liquid inlet and liquid extraction.

[0027] Furthermore, the length of the suction pipe 3 is greater than the length of the inlet pipe 2. Specifically, the length of the suction pipe 3 is between 2 / 3 and 3 / 4 of the axial length of the internal cavity of the cylinder body 1, and the length of the inlet pipe 2 is between 1 / 4 and 1 / 3 of the axial length of the internal cavity of the cylinder body 1.

[0028] Referring to Figure 2, a cleaning port 14 communicating with its cavity is also provided at the bottom of the cylinder body 1. A cleaning pipe 4 communicating with the cleaning port 14 and extending into the cavity of the cylinder body 1 is provided at the cleaning port 14 to spray water to clean the inner wall of the cylinder body 1. The cleaning pipe 4 is provided with a cleaning hole 41 penetrating its side wall. Several cleaning holes 41 are arranged at intervals along the circumferential direction, and at least one set is arranged along the axial direction of the cleaning pipe 4. The length of the cleaning pipe 4 is greater than the length of the liquid extraction pipe 3. Optionally, in some embodiments, the height of the cleaning hole 41 along the axial direction is greater than the height of the liquid extraction hole 31 along the axial direction, that is, the cleaning hole 41 is located above the liquid extraction hole 31.

[0029] Furthermore, the bottom of the cylinder body 1 is also provided with a funnel-shaped slag discharge port 15 that is connected to its cavity. The minimum diameter of the slag discharge port 15 is larger than the diameter of the liquid inlet 12 and the liquid extraction port 13, so as to facilitate the discharge of floating matter, mud and other impurities during the cleaning process.

[0030] Furthermore, a liquid level sensor 5 is fixedly connected to the side wall of the cylinder body 1 to detect and monitor the liquid level in the cavity of the cylinder body 1. Specifically, the liquid level sensor 5 is a non-contact liquid level sensor 5 with a sensing element. Given that it is a mature existing technology, its specific structure and principle will not be shown here.

[0031] In actual use, the overflow port 11 is normally open (of course, an overflow valve can be installed at the overflow port 11 as needed to open it under a specified pressure), the cleaning port 14 and the slag discharge port 15 are opened during the cleaning process, and are closed during the liquid inlet and liquid extraction processes.

[0032] In summary, the sampling device for seawater detection and analysis provided by this utility model has a simple structure and is easy to use. It reduces impurities such as floating matter and silt in seawater sampling, facilitates the detection and analysis of seawater samples, and improves sampling and analysis efficiency.

[0033] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. All equivalent changes and modifications made within the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sampling device for seawater detection and analysis, characterized in that: The cylinder body (1) includes a built-in cavity. The top of the cylinder body (1) is provided with an overflow port (11) that communicates with the cavity, and the bottom is provided with a liquid inlet (12) and a liquid extraction port (13) that communicate with the cavity. The liquid inlet (12) is provided with a liquid inlet pipe (2) that communicates with it and extends into the cavity of the cylinder body (1). The liquid extraction port (13) is provided with a liquid extraction pipe (3) that communicates with it and extends into the cavity of the cylinder body (1). The liquid inlet pipe (2) is provided with a liquid inlet hole (21) that penetrates its side wall. The liquid extraction pipe (3) is provided with a liquid extraction hole (31) that penetrates its side wall. The height of the liquid extraction hole (31) in the axial direction is greater than the height of the liquid inlet hole (21) in the axial direction.

2. The sampling device for seawater detection and analysis according to claim 1, characterized in that: The liquid inlet holes (21) are arranged at intervals along the circumference and at least one set is arranged along the axis of the liquid inlet pipe (2). The liquid extraction holes (31) are arranged at intervals along the circumference and at least one set is arranged along the axis of the liquid extraction pipe (3).

3. The sampling device for seawater detection and analysis according to claim 1, characterized in that: The length of the liquid extraction tube (3) is greater than the length of the liquid inlet tube (2); the length of the liquid extraction tube (3) is between 2 / 3 and 3 / 4 of the axial length of the cavity inside the cylinder body (1), and the length of the liquid inlet tube (2) is between 1 / 4 and 1 / 3 of the axial length of the cavity inside the cylinder body (1).

4. The sampling device for seawater detection and analysis according to claim 1, characterized in that: The bottom of the cylinder body (1) is also provided with a cleaning port (14) that communicates with its cavity. A cleaning pipe (4) that communicates with the cleaning port (14) and extends into the cavity of the cylinder body (1) is provided therein. The cleaning pipe (4) is provided with a cleaning hole (41) that penetrates its side wall. Several cleaning holes (41) are provided at intervals along the circumferential direction, and at least one set is provided along the axial direction of the cleaning pipe (4).

5. The sampling device for seawater detection and analysis according to claim 4, characterized in that: The length of the cleaning tube (4) is greater than the length of the liquid extraction tube (3), and the height of the cleaning hole (41) in the axial direction is greater than the height of the liquid extraction hole (31) in the axial direction.

6. The sampling device for seawater detection and analysis according to claim 4, characterized in that: The bottom of the cylinder body (1) is also provided with a funnel-shaped slag discharge port (15) that is connected to its cavity. The minimum diameter of the slag discharge port (15) is larger than the diameter of the liquid inlet (12) and the liquid extraction port (13).

7. The sampling device for seawater detection and analysis according to claim 1, characterized in that: A liquid level sensor (5) is fixedly connected to the side wall of the cylinder body (1) to monitor the liquid level in the cavity of the cylinder body (1).

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