Ship pipeline inspection filter

Abstract

The utility model relates to the technical field of ship pipeline inspection, and discloses a ship pipeline inspection filter which comprises an outer cylinder and a stainless steel filter bag, an upper cover is arranged at the top of the outer cylinder, a pressure gauge connector is arranged on one side of the top of the upper cover, a supporting plate is arranged on the inner wall of the middle of the outer cylinder, and a threaded sleeve is arranged in the middle of the supporting plate. A stainless steel filter bag is arranged on the inner side of the threaded sleeve, a filter bag flange is arranged at the top end of the stainless steel filter bag and located at the top of the threaded sleeve, a threaded gland is arranged on the outer side of the threaded sleeve, a through hole is formed in the center of the threaded gland, and a discharge choke plug is arranged on one side of the bottom of the outer cylinder. When the stainless steel filter bag needs to be disassembled and assembled, as the stainless steel filter bag is connected and fixed on the supporting plate through the threaded gland, the stainless steel filter bag can be taken out by screwing off the threaded gland when the stainless steel filter bag needs to be disassembled, and the stainless steel filter bag is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of ship pipeline inspection technology, specifically a ship pipeline inspection filter. Background Technology

[0002] Ship piping systems typically consist of numerous complex pipes and connections responsible for transporting various fluids such as fuel oil, lubricating oil, fresh water, seawater, and compressed air. Due to the system's complexity and numerous components, various impurities, such as welding slag, metal shavings, paint residue, and dust, can easily accumulate inside the pipes. The presence of these impurities not only reduces system efficiency but can also damage equipment and even cause safety accidents.

[0003] To ensure the proper functioning of ship piping systems and extend equipment lifespan, thorough flushing and cleaning must be performed before the system is put into use. Flushing aims to use a high-speed flow of fluid (usually oil or water) to flush out impurities from inside the pipes, while cleaning may involve the use of chemical agents to remove more stubborn dirt.

[0004] During rinsing and cleaning, bag filters are widely used as an important auxiliary device. They not only effectively trap and collect impurities washed down, but also monitor the clogging status of the filter bags in real time using indicators such as pressure gauges. This allows operators to be promptly reminded to replace or clean the filter bags, preventing excessive clogging that could lead to increased system pressure or decreased flow.

[0005] However, existing inspection filters typically consist of components such as an outer cylinder, filter bag, pressure gauge, and drain valve. The filter bag is its core component, usually made of a material with a certain filtration precision to trap impurities in the oil. When oil passes through the inspection filter, impurities are trapped by the filter bag, while clean oil continues to flow. As flushing progresses, impurities gradually accumulate on the filter bag. The degree of clogging can be determined by observing changes in the pressure gauge, allowing for timely cleaning or replacement of the filter bag.

[0006] However, existing marine pipeline inspection filters are often fixed to the outer cylinder with bolts, making it difficult to disassemble and assemble the filter bags. In addition, the entire inspection filter is large in size and made of carbon steel, which takes up a lot of space on site, is inconvenient to use, and is prone to rust, affecting the quality of the rinsing process. Utility Model Content

[0007] The purpose of this invention is to provide a marine pipeline inspection filter to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a marine pipeline inspection filter, comprising: an outer cylinder and a stainless steel filter bag; a top cover is provided on the top of the outer cylinder; a pressure gauge connector is provided on one side of the top of the top cover; a support plate is provided on the inner wall of the middle part of the outer cylinder; a threaded sleeve is provided in the middle of the support plate; a stainless steel filter bag is provided inside the threaded sleeve; a filter bag flange is provided at the top of the stainless steel filter bag; the filter bag flange is located at the top of the threaded sleeve; a threaded cap is provided on the outer side of the threaded sleeve; a through hole is provided in the center of the threaded cap; a vent is provided on one side of the bottom of the outer cylinder; a liquid outlet pipe is provided on the other side of the bottom of the outer cylinder; and a liquid inlet pipe is provided on one side of the upper half of the outer cylinder.

[0009] As a further explanation of this utility model, the bottom outer wall of the threaded cap is provided with a limiting rod, the top surface of the support plate is provided with a limiting block, the limiting rod is L-shaped, and one end of the limiting rod abuts against one side of the limiting block.

[0010] As a further explanation of this utility model, the top surface of the limiting block is inclined, the limiting rod abuts against the higher end of the inclined surface of the limiting block, and the lower end of the inclined surface of the limiting block has a smooth transition with the top surface of the support plate.

[0011] As a further explanation of this utility model, a handle is provided on one side of the top of the upper cover, an outer cylinder flange is provided on the top of the outer cylinder, and a sealing gasket is provided between the upper cover and the outer cylinder flange.

[0012] As a further explanation of this utility model, the stainless steel filter bag is provided with a filter bag drain pipe at the center of the bottom, the outer cylinder is provided with a connecting pipe at the center of the bottom, the connecting pipe is provided with a plug at the bottom end, the connecting pipe is provided with a connector at the top end, and the inner wall of the connector and the outer wall of the filter bag drain pipe are interference fit.

[0013] As a further explanation of this utility model, the plug is provided with a rotating rod at its center, the top of the rotating rod extends into the interior of the stainless steel filter bag, and stirring rods are provided on both sides of the top of the rotating rod. The rotating rod is L-shaped.

[0014] As a further explanation of this utility model, there are four limiting rods, which are evenly arranged circumferentially on the outer wall of the threaded cover, and there are four limiting blocks, which are evenly arranged circumferentially on the support plate.

[0015] As a further explanation of this utility model, the top of the threaded cap is provided with an inner flange, which can be pressed tightly onto the filter bag flange.

[0016] As a further explanation of this utility model, the outer cylinder, support plate, and threaded cap are all made of stainless steel.

[0017] As a further explanation of this utility model, the stainless steel filter bag is in the shape of a cylindrical shell, and filter holes are provided on the circumferential sidewalls of the stainless steel filter bag.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model, through its outer cylinder, stainless steel filter bag, and threaded cap, enables the entire filter to be installed in the inspection section between pipelines during use in ship pipeline inspection. As liquid flows within the ship's pipeline, it enters the outer cylinder through the inlet pipe. The stainless steel filter bag traps impurities in the pipeline, while the clean oil continues to flow. As the inspection progresses, impurities gradually increase within the stainless steel filter bag. The degree of blockage of the stainless steel filter bag can be determined by observing the changes in the pressure gauge connected to the pressure gauge connector on the top cover, allowing for timely cleaning or replacement.

[0020] When it is necessary to disassemble or assemble the stainless steel filter bag, since the stainless steel filter bag is fixed to the support plate by a threaded cap, the stainless steel filter bag can be removed by simply unscrewing the threaded cap. The stainless steel filter bag is easy to disassemble and assemble.

[0021] Furthermore, the entire filter in this application is made of stainless steel, which significantly reduces its size while meeting process and usage requirements, making it more convenient to use and transport. The filter body and accessories are all made of stainless steel, eliminating the quality issues caused by rust in the original steel filter.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is an exploded view of a marine pipeline inspection filter according to the present invention;

[0024] Figure 2 This is a perspective view of a marine pipeline inspection filter according to the present invention;

[0025] Figure 3 This is a front view of a marine pipeline inspection filter according to the present invention;

[0026] Figure 4 This is a left view of a marine pipeline inspection filter according to the present invention;

[0027] Figure 5 This is a top view of a marine pipeline inspection filter according to the present invention;

[0028] Figure 6 This is a front sectional view of a marine pipeline inspection filter according to the present invention.

[0029] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0030] Figure 8 for Figure 6 Enlarged structural diagram at point B;

[0031] Figure 9 This is a half-sectional view of a marine pipeline inspection filter according to the present invention;

[0032] Figure 10 for Figure 9 Enlarged structural diagram at point C.

[0033] In the diagram: 1. Outer cylinder; 2. Outer cylinder flange; 3. Top cover; 4. Pressure gauge connector; 5. Handle; 6. Inlet pipe; 7. Vent plug; 8. Outlet pipe; 9. Stainless steel filter bag; 10. Filter bag flange; 11. Threaded gland; 12. Limiting rod; 13. Support plate; 14. Threaded sleeve; 15. Limiting block; 16. Connector; 17. Connecting pipe; 18. Plug; 19. Rotating rod; 20. Stirring rod; 21. Filter bag drain pipe. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Example 1: Please refer to Figures 1-7 , Figure 9 , Figure 10 This utility model provides a technical solution: a marine pipeline inspection filter, comprising: an outer cylinder 1 and a stainless steel filter bag 9. The outer cylinder 1 serves as the main support structure of the entire inspection filter, housing the stainless steel filter bag 9 and other internal components. It protects the internal components from external environmental interference while providing a robust frame to support the operation of the filter. A top cover 3 is provided on the top of the outer cylinder 1. The top cover 3 seals the top of the outer cylinder 1 to prevent liquid leakage and provides a platform for connecting a pressure gauge connector 4. This ensures stable internal pressure within the filter and prevents performance degradation or safety hazards due to leakage. A pressure gauge connector 4 is located on one side of the top of the top cover 3, connected to a pressure gauge for monitoring pressure changes inside the filter. By monitoring pressure changes, the degree of blockage of the stainless steel filter bag 9 can be determined, allowing for timely cleaning or replacement.

[0036] A support plate 13 is provided on the inner wall of the outer cylinder 1, supporting the stainless steel filter bag 9 and ensuring its stable position inside the filter. This prevents the stainless steel filter bag 9 from shifting or deforming due to liquid flow, which would affect the filtration effect. A threaded sleeve 14 is provided in the middle of the support plate 13, providing a threaded interface for connection with the threaded cap 11 to fix the stainless steel filter bag 9. The stainless steel filter bag 9 is located inside the threaded sleeve 14, filtering impurities in the pipeline, ensuring the continued flow of clean oil, effectively trapping impurities in the pipeline, protecting downstream equipment from contamination, and improving the overall performance of the system. The support plate 13 provides a stable support platform for the stainless steel filter bag 9, ensuring its stable position inside the filter. This helps prevent the filter bag from shifting or deforming due to the dynamics of liquid flow, thus ensuring the continuity and stability of the filtration process. Through the support of the support plate 13, the stainless steel filter bag 9 can maintain its designed shape and filtration area, and will not deform due to external pressure or liquid flow. This helps improve filtration efficiency, ensures effective trapping of impurities, and extends the service life of the filter bag. To prevent stainless steel filter bags from shifting or deforming due to liquid flow, thus affecting filtration efficiency: A stable filter bag position is crucial for ensuring effective filtration. By preventing filter bag shifting or deformation, consistent filtration performance can be maintained, avoiding decreased filtration efficiency or clogging caused by changes in filter bag shape.

[0037] The threaded sleeve 14 provides a reliable connection point for the threaded gland 11, making the filter bag more secure and convenient to fix. This connection method is not only easy to operate, but also ensures the stability of the filter bag in high-pressure liquid environments. The threaded sleeve 14 provides a threaded interface for connection with the threaded gland 11 to fix the stainless steel filter bag 9: through the connection of the threaded interface, the threaded gland 11 can be tightly fixed to the threaded sleeve 14, thereby firmly clamping the stainless steel filter bag 9 between the support plate 13 and the threaded gland 11. This fixing method is both simple and effective, ensuring the stability and reliability of the filter bag during the filtration process.

[0038] Placing the stainless steel filter bag 9 inside the threaded sleeve 14 fully utilizes the filter bag's filtration area while ensuring that impurities are effectively trapped inside. This arrangement helps improve filtration efficiency and reduces the risk of contamination to downstream equipment. The stainless steel filter bag 9 filters impurities in the pipeline, ensuring the continued flow of clean oil: As a core component of the filtration system, the stainless steel filter bag 9 effectively traps impurities in the pipeline, ensuring that clean oil continues to flow to downstream equipment. This helps protect downstream equipment from contamination and improves the overall performance and reliability of the system.

[0039] The stainless steel filter bag 9 has a filter bag flange 10 at its top, located on top of the threaded sleeve 14. A threaded cap 11 is located on the outside of the threaded sleeve 14, with a through hole in the center and an inner flange at its top. The inner flange can be pressed tightly onto the filter bag flange 10. The filter bag flange 10 connects the stainless steel filter bag 9 to the threaded sleeve 14 and provides a sealing surface, ensuring a tight, leak-free connection between the stainless steel filter bag 9 and the filter body, thus guaranteeing filtration efficiency. The threaded cap 11 is fixed to the threaded sleeve 14 via a threaded connection, pressing the filter bag flange 10 to secure the stainless steel filter bag 9. This provides a simple disassembly and assembly method, facilitating the replacement and maintenance of the stainless steel filter bag 9.

[0040] A drain plug 7 is located on one side of the bottom of the outer cylinder 1, which discharges liquid or impurities from inside the filter when necessary. It can also be connected to a backwash water pipe for backwashing the stainless steel filter bag 9 when needed. This facilitates cleaning and maintenance of the filter, ensuring its long-term stable operation. An outlet pipe 8 is located on the other side of the bottom of the outer cylinder 1, and an inlet pipe 6 is located on one side of the upper half of the outer cylinder 1. The entire filter is installed in the inspection section between pipelines via the inlet pipe 6 and the outlet pipe 8, ensuring that the filter can be correctly connected to the pipeline system and perform its filtration function. The stainless steel filter bag 9 is a cylindrical shell with filter holes on its circumferential sidewalls.

[0041] The threaded cap 11 has a limiting rod 12 on its bottom outer wall, and a limiting block 15 on the top surface of the support plate 13. The limiting rod 12 is L-shaped, and one end of the limiting rod 12 abuts against one side of the limiting block 15. There are four limiting rods 12, which are evenly arranged circumferentially on the outer wall of the threaded cap 11. There are also four limiting blocks 15, which are evenly arranged circumferentially on the support plate 13. The abutment between the limiting rod 12 and the limiting block 15 is used to prevent the stainless steel filter bag 9 from loosening due to the reverse rotation of the threaded cap 11. When the threaded cap 11 receives a force in the direction of loosening, the abutment between the limiting rod 12 and the limiting block 14 achieves the anti-loosening effect of the threaded cap 11.

[0042] The top surface of the limiting block 15 is inclined, and the limiting rod 12 abuts against the higher end of the inclined surface of the limiting block 15. The lower end of the inclined surface of the limiting block 15 has a smooth transition with the top surface of the support plate 13. During the tightening of the threaded cap 11, the limiting rod 12 can pass over the limiting block 15 through the inclined surface, so that the limiting rod 12 can abut against the higher side of the inclined surface of the limiting block 15 to achieve the anti-loosening effect. In addition, when disassembling the stainless steel filter bag 9, the limiting rod 12 on the threaded cap 11 can be lifted. The limiting rod 12 has a certain elasticity in the vertical direction, which makes it easy for personnel to manually loosen the threaded cap 11.

[0043] The top of the upper cover 3 has a handle 5 on one side, and the top of the outer cylinder 1 has an outer cylinder flange 2. A sealing gasket is provided between the upper cover 3 and the outer cylinder flange 2. This facilitates the connection and sealing between the upper cover 3 and the outer cylinder 1.

[0044] Example 2: Please refer to Figures 1-10 This utility model provides a technical solution: a marine pipeline inspection filter, comprising: an outer cylinder 1 and a stainless steel filter bag 9. The outer cylinder 1 serves as the main support structure of the entire inspection filter, housing the stainless steel filter bag 9 and other internal components. It protects the internal components from external environmental interference while providing a robust frame to support the operation of the filter. A top cover 3 is provided on the top of the outer cylinder 1. The top cover 3 seals the top of the outer cylinder 1 to prevent liquid leakage and provides a platform for connecting a pressure gauge connector 4. This ensures stable internal pressure within the filter and prevents performance degradation or safety hazards due to leakage. A pressure gauge connector 4 is located on one side of the top of the top cover 3, connected to a pressure gauge for monitoring pressure changes inside the filter. By monitoring pressure changes, the degree of blockage of the stainless steel filter bag 9 can be determined, allowing for timely cleaning or replacement.

[0045] A support plate 13 is provided on the inner wall of the outer cylinder 1, supporting the stainless steel filter bag 9 and ensuring its stable position inside the filter. This prevents the stainless steel filter bag 9 from shifting or deforming due to liquid flow, which would affect the filtration effect. A threaded sleeve 14 is provided in the middle of the support plate 13, providing a threaded interface for connection with the threaded cap 11 to fix the stainless steel filter bag 9. The stainless steel filter bag 9 is located inside the threaded sleeve 14, filtering impurities in the pipeline, ensuring the continued flow of clean oil, effectively trapping impurities in the pipeline, protecting downstream equipment from contamination, and improving the overall performance of the system.

[0046] The stainless steel filter bag 9 has a filter bag flange 10 at its top, located on top of the threaded sleeve 14. A threaded cap 11 is located on the outside of the threaded sleeve 14, with a through hole in the center and an inner flange at its top. The inner flange can be pressed tightly onto the filter bag flange 10. The filter bag flange 10 connects the stainless steel filter bag 9 to the threaded sleeve 14 and provides a sealing surface, ensuring a tight, leak-free connection between the stainless steel filter bag 9 and the filter body, thus guaranteeing filtration efficiency. The threaded cap 11 is fixed to the threaded sleeve 14 via a threaded connection, pressing the filter bag flange 10 to secure the stainless steel filter bag 9. This provides a simple disassembly and assembly method, facilitating the replacement and maintenance of the stainless steel filter bag 9.

[0047] A drain plug 7 is located on one side of the bottom of the outer cylinder 1, which discharges liquid or impurities from inside the filter when necessary. It can also be connected to a backwash water pipe for backwashing the stainless steel filter bag 9 when needed. This facilitates cleaning and maintenance of the filter, ensuring its long-term stable operation. An outlet pipe 8 is located on the other side of the bottom of the outer cylinder 1, and an inlet pipe 6 is located on one side of the upper half of the outer cylinder 1. The entire filter is installed in the inspection section between pipelines via the inlet pipe 6 and the outlet pipe 8, ensuring that the filter can be correctly connected to the pipeline system and perform its filtration function. The stainless steel filter bag 9 is a cylindrical shell with filter holes on its circumferential sidewalls.

[0048] The threaded cap 11 has a limiting rod 12 on its bottom outer wall, and a limiting block 15 on the top surface of the support plate 13. The limiting rod 12 is L-shaped, and one end of the limiting rod 12 abuts against one side of the limiting block 15. There are four limiting rods 12, which are evenly arranged circumferentially on the outer wall of the threaded cap 11. There are also four limiting blocks 15, which are evenly arranged circumferentially on the support plate 13. The abutment between the limiting rod 12 and the limiting block 15 is used to prevent the stainless steel filter bag 9 from loosening due to the reverse rotation of the threaded cap 11. When the threaded cap 11 receives a force in the direction of loosening, the abutment between the limiting rod 12 and the limiting block 14 achieves the anti-loosening effect of the threaded cap 11.

[0049] The top surface of the limiting block 15 is inclined, and the limiting rod 12 abuts against the higher end of the inclined surface of the limiting block 15. The lower end of the inclined surface of the limiting block 15 has a smooth transition with the top surface of the support plate 13. During the tightening of the threaded cap 11, the limiting rod 12 can pass over the limiting block 15 through the inclined surface, so that the limiting rod 12 can abut against the higher side of the inclined surface of the limiting block 15 to achieve the anti-loosening effect. In addition, when disassembling the stainless steel filter bag 9, the limiting rod 12 on the threaded cap 11 can be lifted. The limiting rod 12 has a certain elasticity in the vertical direction, which makes it easy for personnel to manually loosen the threaded cap 11.

[0050] The top of the upper cover 3 has a handle 5 on one side, and the top of the outer cylinder 1 has an outer cylinder flange 2. A sealing gasket is provided between the upper cover 3 and the outer cylinder flange 2. This facilitates the connection and sealing between the upper cover 3 and the outer cylinder 1.

[0051] Please refer to the following: Figure 8 The stainless steel filter bag 9 has a filter bag drain pipe 21 at the bottom center. The filter bag drain pipe 21 serves as a discharge channel for impurities at the bottom of the stainless steel filter bag 9 and is connected to the connecting pipe 17 to form a complete drainage system. This allows impurities accumulated in the stainless steel filter bag 9 to be discharged through the pipe when needed by opening the plug 18, without disassembling the filter bag, thus improving maintenance efficiency.

[0052] A connecting pipe 17 is located at the center of the bottom of the outer cylinder 1. A plug 18 is located at the bottom of the connecting pipe 17, and a connector 16 is located at the top of the connecting pipe 17. The inner wall of the connector 16 and the outer wall of the filter bag drain pipe 21 are interference-fitted. The connecting pipe 17 connects the filter bag drain pipe 21 and the bottom of the outer cylinder 1, providing a flow path for impurities from the filter bag to the bottom of the outer cylinder. By optimizing the pipe layout, the internal space occupied by the filter is reduced, improving the overall structural compactness. The design of the connecting pipe makes the installation and removal of the plug 18 more convenient, facilitating daily maintenance and cleaning.

[0053] The plug 18 is used to seal the bottom end of the connecting pipe 17 to prevent liquid or impurities from leaking from the pipe when no sewage discharge is being performed. This ensures that the inside of the connecting pipe 17 remains sealed when no sewage discharge is being carried out, preventing liquid or impurities from leaking out. Through the filter bag drain pipe 21 and the connecting pipe 17, when sewage discharge is required, the plug 18 can be directly opened to flush impurities from the stainless steel filter bag 9 into the connecting pipe 17 for discharge.

[0054] A rotating rod 19 is centrally located on the plug 18, with its tip extending into the stainless steel filter bag 9. Stirring rods 20 are located on both sides of the tip of the rotating rod 19, which is L-shaped. The rotation of the rotating rod 19 and the stirring rods 20 loosens and stirs impurities at the bottom of the stainless steel filter bag 9, facilitating their discharge. The rotation of the rotating rod 19 drives the stirring rods 20 to loosen and stir impurities inside the stainless steel filter bag 9, promoting their discharge. The stirring action of the stirring rods 20 helps break down the adhesion and accumulation of impurities, making them easier to flush out of the filter bag and improving discharge efficiency. Regular stirring reduces the accumulation of impurities at the bottom of the filter bag, thus reducing the risk of clogging and extending its service life. The L-shaped design of the rotating rod 19 makes operation more convenient, allowing stirring to be performed without disassembling the filter bag.

[0055] The outer cylinder 1, support plate 13, and threaded gland 11 are all made of stainless steel. Taking into account the diameter of the hoses and the system diameter, the filter's external dimensions were reduced from φ168*400 to φ140*285; the original filter inlet / outlet diameter was reduced from φ60 to φ40; and the inlet / outlet valves were replaced with stainless steel ball valves. This filter features a miniaturized design, significantly reducing its size and weight by nearly 50% while meeting process and usage requirements, making it more convenient to use and transport. The filter body and accessories are all made of stainless steel, eliminating the quality issues caused by rust in the original steel filter.

[0056] When using the filter in the ship's pipeline inspection, the entire filter is installed in the inspection section between the pipelines through the inlet pipe 6 and the outlet pipe 8. When the liquid flows in the ship's pipeline, the liquid enters the outer cylinder 1 through the inlet pipe 6. The stainless steel filter bag 9 traps the impurities in the pipeline, while the clean oil continues to flow. As the inspection proceeds, the impurities in the stainless steel filter bag 9 gradually increase. The degree of blockage of the stainless steel filter bag 9 can be judged by observing the changes in the pressure gauge connected to the pressure gauge connector 4 on the top cover 3, and it can be cleaned or replaced in time.

[0057] When it is necessary to disassemble or assemble the stainless steel filter bag 9, since the stainless steel filter bag 9 is connected and fixed to the support plate 13 by the threaded cap 11, when it is necessary to remove the stainless steel filter bag 9, the threaded cap 11 needs to be unscrewed to take out the stainless steel filter bag 9. The disassembly and assembly of the stainless steel filter bag 9 is convenient.

[0058] Furthermore, the entire filter in this application is made of stainless steel, which significantly reduces its size while meeting process and usage requirements, making it more convenient to use and transport. The filter body and accessories are all made of stainless steel, eliminating the quality issues caused by rust in the original steel filter.

[0059] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A marine line inspection strainer comprising: The outer cylinder (1) and the stainless steel filter bag (9) are characterized in that: the upper cover (3) is arranged on the top of the outer cylinder (1), the pressure gauge connector (4) is arranged on one side of the top of the upper cover (3), the support plate (13) is arranged on the inner wall of the middle part of the outer cylinder (1), the threaded sleeve (14) is arranged on the middle part of the support plate (13), the stainless steel filter bag (9) is arranged on the inner side of the threaded sleeve (14), the filter bag flange (10) is arranged on the top end of the stainless steel filter bag (9), the filter bag flange (10) is arranged on the top of the threaded sleeve (14), the threaded gland (11) is arranged on the outer side of the threaded sleeve (14), the through hole is arranged in the center of the threaded gland (11), the blowdown head (7) is arranged on one side of the bottom of the outer cylinder (1), the liquid outlet pipe (8) is arranged on the other side of the bottom of the outer cylinder (1), and the liquid inlet pipe (6) is arranged on one side of the upper half of the outer cylinder (1).

2. A marine line strainer filter according to claim 1, wherein: The limit rod (12) is arranged on the outer wall of the threaded gland (11), the limit block (15) is arranged on the top surface of the support plate (13), the limit rod (12) is in L shape, and one end of the limit rod (12) is in abutment with one side of the limit block (15).

3. A marine line strainer filter according to claim 2, wherein: The top surface of the limit block (15) is arranged in an inclined manner, one end of the limit rod (12) is in abutment with the high side of the inclined surface of the limit block (15), and the low side of the inclined surface of the limit block (15) is smoothly connected with the top surface of the support plate (13).

4. A marine line strainer filter according to claim 1, wherein: The handle (5) is arranged on one side of the top of the upper cover (3), the outer cylinder flange (2) is arranged on the top of the outer cylinder (1), and the sealing washer is arranged between the upper cover (3) and the outer cylinder flange (2).

5. A marine line strainer filter according to claim 1, wherein: The filter bag blowdown pipe (21) is arranged in the center of the bottom of the stainless steel filter bag (9), the connecting pipe (17) is arranged in the center of the bottom of the outer cylinder (1), the plug (18) is arranged at the bottom end of the connecting pipe (17), the connector (16) is arranged at the top end of the connecting pipe (17), and the inner wall of the connector (16) and the outer wall of the filter bag blowdown pipe (21) are in interference fit.

6. A marine line strainer filter according to claim 5, wherein: The rotating rod (19) is arranged in the center of the plug (18), the rotating rod (19) extends into the stainless steel filter bag (9), the stirring rod (20) is arranged on both sides of the top end of the rotating rod (19), and the rotating rod (19) is in L shape.

7. A marine line strainer filter according to claim 2, wherein: The four limit rods (12) are uniformly arranged on the outer wall of the threaded gland (11) in a circumferential direction, and the four limit blocks (15) are uniformly arranged on the support plate (13) in a circumferential direction.

8. A marine line strainer filter according to claim 1 wherein: The inner flange is arranged at the top end of the threaded gland (11), and the inner flange can be pressed on the filter bag flange (10).

9. A marine line strainer filter according to claim 1 wherein: The outer cylinder (1), the support plate (13) and the threaded gland (11) are all made of stainless steel.

10. A marine line strainer filter according to claim 1, wherein: The stainless steel filter bag (9) is in the shape of a cylindrical shell, and the filter holes are arranged on the circumferential side wall of the stainless steel filter bag (9).

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