A disturbance filter suitable for surface seawater sampling systems in polar regions

Abstract

The present invention relates to a disturbance filter suitable for a surface seawater sampling system in polar regions, mainly comprising: a water inlet, a water outlet, an ice discharge port, a housing, a filter element assembly, and a steel brush assembly; the steel brush assembly is arranged inside the filter element assembly; the steel brush assembly comprises a long steel brush, a short steel brush, and a rotating shaft, the rotating shaft is arranged at the central position of the filter element assembly, the long steel brush and the short steel brush are respectively fixedly connected to the rotating shaft through a connecting piece, and the rotating shaft can drive the long steel brush and the short steel brush to rotate in the internal space of the filter element assembly; wherein, the long steel brush abuts against the inner wall of the filter element assembly, and the short steel brush has a certain distance from the inner wall of the filter element assembly. The long and short steel brushes inside the disturbance filter are rotated uninterruptedly and regularly to realize the disturbance of the seawater inside the filter, so as to prevent the seawater from condensing into blocks, and at the same time, the filter screen cylinder wall in the filter element assembly can be cleaned, and the ice residue attached to the filter screen cylinder wall can be removed, so as to prevent the filter from freezing and improve the accuracy of the scientific investigation results.

Description

Technical Field

[0001] The invention relates to the technical field of polar ocean scientific expeditions, and in particular to a disturbance filter suitable for a surface seawater sampling system in polar regions and an operating method thereof. Background Art

[0002] There are a large number of biological and geological resources in the Earth's polar regions. With the frequent polar activities, more and more ships are going to the North and South Poles for scientific exploration and sampling. During scientific expeditions to the polar regions, it is necessary to continuously sample surface seawater and conduct global ocean surveys.

[0003] Due to the unique and harsh natural environment in the polar regions, snow accumulates all year round, and the ice is difficult to melt. The vast ocean water is covered with unevenly thick ice. To conduct ocean surveys in the region, icebreakers must break the ice to collect surface seawater. Because the ice chips knocked down during icebreaking and the floating ice on the surface are mixed with the surface seawater, when collecting surface seawater, the ice chips will be collected into the sampling room along with the seawater, which will affect the purity of the seawater samples. After melting, they will also react physically and chemically with the seawater, destroying the original composition of the surface seawater, resulting in inaccurate scientific survey results.

[0004] In order to ensure the authenticity of scientific investigations, water inlet grilles are usually installed at the water inlet of the seabed gate to prevent large pieces of floating ice and ice chips from entering the seabed gate. At the same time, ice-isolating baffles can be installed inside the seabed gate as needed to prevent the crushed ice entering the seabed gate from being sucked into the seawater tank.

[0005] However, due to the low temperature in polar regions, although ice isolation treatment has been carried out, there will still be small ice crystals and ice flocs with a density similar to that of seawater and suspended in the seawater, which will enter the sampling system together. Therefore, in the sampling system, a filter is usually installed in the pipeline between the seabed gate and the seawater tank storing the sampled seawater to filter the seawater. However, on the one hand, ice crystals and ice flocs have extremely strong viscosity. Once the seawater flow rate in the sampling pipeline is relatively reduced, the ice crystals and ice flocs in the seawater will harden under low temperature conditions and promote the growth of ice thickness on the existing ice, which will continue to thicken and block the filter, and may eventually cause the sampling pipeline between the filter and the sampling port to be completely blocked; in addition, some marine organisms and debris will also be attached to the filter, which may also block the pipeline and damage the equipment.

[0006] Normally, the most direct way to prevent the filter from freezing is to heat it. For example, CN116252902A discloses a marine emergency seafloor door antifreeze system, including an emergency seawater tank, an emergency seafloor door filter, an ice-melting orifice plate suction mask, a side valve, a bypass valve, a seawater filter, an emergency seawater pump, a blow-off valve, a nozzle, and a control module. The emergency seafloor door filter preliminarily blocks floating ice, the ice-melting orifice plate suction mask blocks floating ice for the second time, and the seawater filter further blocks fine floating ice and impurities, protecting the filter valve components and extending the service life of the filter valve components; the side valve can automatically monitor the seawater flow, and the control module can control the closing of the side valve and control the opening of the blow-off valve and the bypass valve, so that the system has the functions of automatically monitoring the seawater flow, automatically melting ice, and automatically operating the bypass system, thereby improving the ship's automated operation capability.

[0007] However, in the surface seawater sampling system in polar regions, if heating is used, it will destroy the authenticity of the seawater samples in the surface seawater sampling system, and may destroy the composition of the original surface seawater, resulting in inaccurate scientific survey results.

[0008] Therefore, there is an urgent need to invent a filter suitable for the surface seawater sampling system in polar regions to solve the above-mentioned technical problems and improve the accuracy of scientific investigation results while preventing the filter from freezing. Summary of the invention

[0009] The present invention provides a disturbance filter suitable for a surface seawater sampling system in polar regions. The disturbance of the seawater inside the filter is achieved by the uninterrupted regular rotation of long and short steel brushes inside the disturbance filter, thereby preventing the seawater from condensing into blocks. At the same time, the filter cylinder wall in the filter element assembly can be cleaned and ice debris attached to the filter cylinder wall can be removed, thereby preventing the filter from freezing and improving the accuracy of scientific investigation results.

[0010] To achieve the above object, the technical solution adopted by the present invention is:

[0011] A disturbance filter suitable for a surface seawater sampling system in polar regions, mainly comprising: a water inlet, a water outlet, an ice discharge port, a shell, a filter element assembly, and a steel brush assembly; the filter element assembly is arranged at the central part of the shell, and the internal space of the shell is divided into two parts: a surrounding space between an outer wall of the filter element assembly and an inner wall of the shell, and an internal space of the filter element assembly; the water inlet passes through the shell and the filter element assembly to enter the internal space of the filter element assembly, and the water outlet passes through the shell and is communicated with the surrounding space between the outer wall of the filter element assembly and the inner wall of the shell; the steel brush assembly is arranged inside the filter element assembly; the steel brush assembly comprises a long steel brush, a short steel brush and a rotating shaft, the rotating shaft is arranged at the central position of the filter element assembly, the long steel brush and the short steel brush are fixedly connected to the rotating shaft through a connecting piece, and the rotating shaft can drive the long steel brush and the short steel brush to rotate in the internal space of the filter element assembly; wherein the long steel brush abuts against the inner wall of the filter element assembly, and its height is substantially the same as that of the filter element assembly; the short steel brush has a certain distance from the inner wall of the filter element assembly, and its overall height is less than the height of the long steel brush and the height of the filter element assembly.

[0012] Furthermore, a filter cover is provided on the top of the shell, and the filter cover is fixedly connected to the shell through a sealing member.

[0013] Furthermore, the top of the rotating shaft is connected to the reduction motor at the top of the filter cover through a transmission component.

[0014] Furthermore, there are 2 long steel brushes and 2 short steel brushes. The 2 long steel brushes are arranged on a straight line passing through the center of the rotating shaft, and the 2 short steel brushes are arranged on a straight line passing through the center of the rotating shaft. The straight line where the 2 long steel brushes are located is perpendicular to the straight line where the 2 short steel brushes are located.

[0015] Furthermore, the long steel brush and the short steel brush are respectively connected and fixed on the rotating shaft through two connecting pieces.

[0016] Furthermore, the connecting piece between the long steel brush and the rotating shaft includes a connecting head, a connecting seat and a spring; the connecting head is used to be fixedly connected to the long steel brush, a bolt hole is provided on the connecting head, and a sliding portion is provided at one end; the connecting seat is used to be fixedly connected to the rotating shaft, a cavity is provided therein, an opening connected to the cavity is provided at the end away from the rotating shaft, and a spring is provided in the cavity; the sliding portion of the connecting head is arranged in the cavity of the connecting seat and abuts against the spring, and the end of the connecting head away from the sliding portion extends out from the opening of the connecting seat; under the action of the spring, the long steel brush fixedly connected to the connecting head can effectively fit against and avoid the inner wall of the filter element assembly.

[0017] Furthermore, the end of the long steel brush abutting against the filter element assembly adopts an arc design.

[0018] Furthermore, the end of the long steel brush abutting against the inner wall of the filter element assembly is designed to be blade-shaped or sawtooth-shaped.

[0019] Furthermore, the housing and filter element components are made of materials with corrosion-resistant and durable properties.

[0020] Furthermore, the sealing material of the disturbance filter is neoprene.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects:

[0022] (1) The present invention disturbs the seawater inside the filter by causing the long and short steel brushes inside the filter to rotate regularly and continuously, thereby preventing the seawater from condensing into lumps.

[0023] (2) The present invention cleans the filter cylinder wall in the filter element assembly by disturbing the long steel brush inside the filter to rotate regularly and continuously, removes the ice debris attached to the filter cylinder wall, and automatically discharges the ice debris inside the filter element assembly to the outside of the ship through the ice discharge port by the ice discharge pump.

[0024] (3) The disturbance filter of the present invention has a filtering function in the seawater pipeline system. The steel brush on the filter element assembly in the disturbance filter can automatically clean the marine organisms attached to the filter screen by rotating, so as to prevent debris, marine organisms, etc. from clogging the pipeline and damaging the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a top view of the disturbance filter of the present invention;

[0027] Figure 2 yes Figure 1 The expanded view of the AA surface of the medium disturbance filter;

[0028] Figure 3 It is a structural schematic diagram of the steel brush assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection structure of the steel brush of the present invention;

[0030] Figure 5 It is a schematic diagram of the connecting member structure of the long steel brush of the present invention;

[0031] Figure 6 It is a schematic cross-sectional view of a long steel brush of the present invention.

[0032] Reference numerals in the figures:

[0033] Water inlet 1;

[0034] Water outlet 2;

[0035] Ice discharge port 3;

[0036] Shell 4;

[0037] Filter element assembly 5;

[0038] Long steel brush 6;

[0039] Short steel brush 7;

[0040] Rotating shaft 8;

[0041] Filter cover 9;

[0042] Reducer motor 10;

[0043] Connector 11;

[0044] Connecting seat 12;

[0045] Spring 13;

[0046] Sliding portion 14;

[0047] Opening 15. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0050] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0051] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0052] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0053] At the same time, in this specification, descriptions involving orientations, such as up, down, left, right, front, back, inside, outside, longitudinal, lateral, vertical, horizontal, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention. Example

[0054] like Figure 1-2 As shown, the disturbance filter of the present invention, which is suitable for the surface seawater sampling system in polar regions, mainly comprises: a water inlet 1, a water outlet 2, an ice discharge port 3, a shell 4, a filter element assembly 5, and a steel brush assembly. The filter element assembly 5 is arranged in the central part of the shell 4, and divides the internal space of the shell 4 into two parts: a surrounding space between the outer wall of the filter element assembly 5 and the inner wall of the shell 4, and an internal space of the filter element assembly 5. The water inlet 1 passes through the shell 4 and the filter element assembly 5 to enter the internal space of the filter element assembly 5, and the water outlet 2 passes through the shell 4 and is connected to the surrounding space between the outer wall of the filter element assembly 5 and the inner wall of the shell 4. Seawater enters the internal space of the filter element assembly 5 through the water inlet 1, enters the surrounding space between the outer wall of the filter element assembly 5 and the inner wall of the shell 4 after being filtered by the filter element assembly 5, and then flows out through the water outlet 2.

[0055] The ice discharge port 3 of the disturbance filter of the present invention is placed above the filter. Since the density of ice is less than that of water, ice debris will float on the surface of seawater, and the ice discharge pump is located at a high position of the filter, which is more conducive to the discharge of ice debris inside the filter.

[0056] The steel brush assembly is arranged inside the filter element assembly 5, and the steel brush assembly includes a long steel brush 6, a short steel brush 7 and a rotating shaft 8. The rotating shaft 8 is arranged at the central position of the filter element assembly 5. The long steel brush 6 and the short steel brush 7 are respectively fixedly connected to the rotating shaft 8 through a connecting piece, and the rotating shaft 8 can drive the long steel brush 6 and the short steel brush 7 to rotate in the internal space of the filter element assembly 5. The long steel brush 6 abuts against the inner wall of the filter element assembly 5, and its height is substantially the same as that of the filter element assembly 5. The short steel brush 7 has a certain distance from the inner wall of the filter element assembly 5, and its overall height is less than the height of the long steel brush 6 and the height of the filter element assembly 5.

[0057] Preferably, the height of the short steel brush 7 is half of the height of the long steel brush 6 .

[0058] Preferably, a filter cover 9 is provided on the top of the housing 4 of the disturbance filter of the present invention, and the filter cover 9 is fixedly connected to the housing 4 through a seal. The top of the rotating shaft 8 is connected to the reduction motor 10 on the top of the filter cover 9 through a transmission component.

[0059] During the sampling process of the seawater sampling system, the reduction motor 10 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the long steel brush 6 and the short steel brush 7 to rotate in the internal space of the filter element assembly 5. The uninterrupted regular rotation of the long steel brush 6 and the short steel brush 7 can disturb the seawater inside the filter to prevent the seawater from condensing into blocks. Since the long steel brush 6 is against the inner wall of the filter element assembly 5, during the rotation process of the long steel brush 6, the uninterrupted regular rotation of the long steel brush 6 can also clean the filter cylinder wall in the filter element assembly and remove ice residue or debris attached to the filter cylinder wall.

[0060] like Figure 3 As shown, there are multiple long steel brushes 6 and short steel brushes 7. The number of long steel brushes 6 is preferably 2, and the number of short steel brushes 7 is preferably 2. The two long steel brushes 6 are arranged on a straight line passing through the center of the rotating shaft 8, and the two short steel brushes 7 are arranged on a straight line passing through the center of the rotating shaft 8. The straight line where the two long steel brushes 6 are located is perpendicular to the straight line where the two short steel brushes 7 are located.

[0061] Figure 4 The connecting structure of the steel brush of the present invention is shown, and each long steel brush 6 or short steel brush 7 is connected and fixed on the rotating shaft 8 through two connecting parts.

[0062] Figure 5The connecting piece structure of the long steel brush of the present invention is shown. The connecting piece of the long steel brush 6 includes a connecting head 11, a connecting seat 12 and a spring 13. The connecting head 11 is used for fixed connection with the long steel brush 6. The connecting head 11 is provided with a bolt hole and a sliding part 14 at one end. The connecting seat 12 is used for fixed connection with the rotating shaft 8. A cavity is provided inside. An opening 15 communicating with the cavity is provided at the end away from the rotating shaft 8. A spring 13 is provided in the cavity. The sliding part 14 of the connecting head 11 is arranged in the cavity of the connecting seat and abuts against the spring 13. The end of the connecting head 11 away from the sliding part extends out of the opening 15 of the connecting seat 12. Under the action of the spring 13, the long steel brush 6 fixedly connected to the connecting head 11 can effectively fit with the inner wall of the filter element assembly 5, and when encountering hard materials (such as local thick ice) protruding from the inner surface of the filter element assembly 5, the long steel brush 6 can effectively avoid it through the expansion and contraction of the spring 13 to avoid motor overload.

[0063] like Figure 6 As shown, the end of the long steel brush 6 adopts an arc design, which can not only protect the end of the steel brush and reduce the wear of the steel brush during operation, but also effectively avoid the long steel brush 6 when encountering hard protruding ice cubes to prevent motor overload.

[0064] In addition, in order to better remove ice debris on the inner wall of the filter element assembly 5, the end of the long steel brush 6 abutting against the inner wall of the filter element assembly 5 can also be designed to be blade-shaped or serrated as needed.

[0065] Considering the corrosive influence of seawater in the environment where the filter is located, the shell 4 and the filter element assembly 5 of the disturbance filter of the present invention are preferably made of materials with corrosion resistance and durability, wherein the shell 4 and the filter element assembly 5 are made of stainless steel 316L. Stainless steel 316L material is a molybdenum-based austenitic stainless steel, which is a stainless steel with relatively good performance in manufacturing seawater equipment. Compared with conventional stainless steel, it has better corrosion resistance, especially suitable for chloride ion environment, has good stress corrosion resistance, high compressive strength, etc., and has good processability and formability.

[0066] The main problems encountered by rubber used in seawater are seawater corrosion and marine organism attachment. Tests have shown that natural rubber has poor anti-aging performance in seawater, while chloroprene rubber has better anti-aging performance in seawater than natural rubber. Chloroprene rubber with tributyltin fluoride has better resistance to seawater and marine organism corrosion. Preferably, the sealing material of the disturbance filter is chloroprene rubber, which has a high chemical stability and has the advantages of being non-flammable, resistant to seawater corrosion, resistant to aging, and good air tightness.

[0067] The working principle of the disturbance filter of the present invention applicable to the surface seawater sampling system in polar regions is as follows:

[0068] During the sampling process of the seawater sampling system, the disturbance filter works normally, and the seawater enters the internal space of the filter element assembly 5 through the water inlet 1, enters the surrounding space between the outer wall of the filter element assembly 5 and the inner wall of the shell 4 after being filtered by the filter element assembly 5, and then flows out through the water outlet 2. During the filtering process, impurities such as ice cubes that are larger than the mesh of the filter element assembly 5 are intercepted. The reduction motor 10 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the long steel brush 6 and the short steel brush 7 to rotate in the internal space of the filter element assembly 5. The two short steel brushes 7 are responsible for disturbing the seawater inside the filter when rotating to prevent the seawater from condensing into blocks; and the long steel brush 6 is not only responsible for disturbing the seawater, but also cleans the cylinder wall of the filter element assembly when rotating around the axis to remove the ice debris attached to the cylinder wall. The ice debris inside the filter element assembly can be automatically discharged from the ship through the ice discharge port 3 through the ice discharge pump, and of course, manual deicing can also be performed by removing the filter cover.

[0069] The disturbance filter of the present invention does not need to close the valves before and after the filter during the de-icing process, can optimize the continuity of surface seawater sampling, and can remove ice debris from the ship through an ice removal pump.

[0070] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A disturbance filter suitable for a surface seawater sampling system in polar regions, comprising: A water inlet (1), a water outlet (2), an ice discharge port (3), a housing (4), a filter element assembly (5), and a steel brush assembly; the filter element assembly (5) is arranged at the central part of the housing (4), and the internal space of the housing (4) is divided into two parts: a surrounding space between the outer wall of the filter element assembly (5) and the inner wall of the housing (4), and an internal space of the filter element assembly (5); the water inlet (1) passes through the housing (4) and the filter element assembly (5) to enter the internal space of the filter element assembly (5), and the water outlet (2) passes through the housing (4) and communicates with the surrounding space between the outer wall of the filter element assembly (5) and the inner wall of the housing (4); the steel brush assembly is arranged inside the filter element assembly (5); the steel brush assembly is characterized in that: the steel brush assembly comprises a long steel brush (6), a short steel brush (7) and a rotating shaft (8), the rotating shaft (8) is arranged at the central position of the filter element assembly (5), and the long steel brush ( The long steel brush (6) and the short steel brush (7) are respectively fixedly connected to the rotating shaft (8) through a connecting piece, and the rotating shaft (8) can drive the long steel brush (6) and the short steel brush (7) to rotate in the internal space of the filter element assembly (5); wherein the long steel brush (6) abuts against the inner wall of the filter element assembly (5), and its height is substantially the same as the height of the filter element assembly (5); the short steel brush (7) is at a certain distance from the inner wall of the filter element assembly (5), and its overall height is less than the height of the long steel brush (6) and the height of the filter element assembly (5); the number of the long steel brushes (6) is 2, and the number of the short steel brushes (7) is 2, the two long steel brushes (6) are arranged on a straight line passing through the center of the rotating shaft (8), and the two short steel brushes (7) are arranged on a straight line passing through the center of the rotating shaft (8), and the straight line where the two long steel brushes (6) are located is perpendicular to the straight line where the two short steel brushes (7) are located.

2. A disturbance filter suitable for a surface seawater sampling system in polar regions according to claim 1, characterized in that: A filter cover (9) is provided on the top of the housing (4), and the filter cover (9) is fixedly connected to the housing (4) via a sealing member.

3. A disturbance filter suitable for a surface seawater sampling system in polar regions according to claim 2, characterized in that: The top of the rotating shaft (8) is transmission-connected to a reduction motor (10) at the top of the filter cover (9) via a transmission component.

4. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The long steel brush (6) and the short steel brush (7) are respectively connected and fixed on the rotating shaft (8) via two connecting pieces.

5. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The connecting member between the long steel brush (6) and the rotating shaft (8) comprises a connecting head (11), a connecting seat (12) and a spring (13); the connecting head (11) is used for fixed connection with the long steel brush (6), the connecting head (11) is provided with a bolt hole and one end thereof has a sliding portion (14); the connecting seat (12) is used for fixed connection with the rotating shaft (8), a cavity is provided therein, an end away from the rotating shaft (8) is provided with an opening (15) communicating with the cavity, and a spring (13) is provided in the cavity; the sliding portion (14) of the connecting head (11) is arranged in the cavity of the connecting seat and abuts against the spring (13), and the end of the connecting head (11) away from the sliding portion (14) extends out of the opening (15) of the connecting seat (12); under the action of the spring (13), the long steel brush (6) fixedly connected to the connecting head (11) can effectively adhere to and avoid the inner wall of the filter element assembly (5).

6. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The end of the long steel brush (6) that contacts the filter element assembly is designed to be circular.

7. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The end of the long steel brush (6) abutting against the inner wall of the filter element assembly (5) is designed to be blade-shaped or sawtooth-shaped.

8. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The housing (4) and the filter element assembly (5) are made of corrosion-resistant and durable materials.

9. The disturbance filter suitable for the surface seawater sampling system in polar regions according to claim 1, characterized in that: The sealing material of the disturbance filter is neoprene.

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