Ship pipeline inspection filter

Abstract

The invention 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 threaded sleeve is arranged in the outer cylinder, 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. 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] The invention relates to the technical field of ship pipeline inspection, in particular to a ship pipeline inspection filter. Background Art

[0002] Ship piping systems are usually composed of numerous complex pipes and connectors, which are responsible for transmitting a variety of fluids such as fuel, lubricating oil, fresh water, seawater, compressed air, etc. Due to the complexity of the system and the large number of components, various impurities such as welding slag, metal chips, paint peeling, dust, etc. are easily accumulated inside the pipes. The presence of these impurities will not only reduce the efficiency of the system, but also may damage the equipment and even cause safety accidents.

[0003] In order to ensure the normal operation of the ship's piping system and extend the service life of the equipment, the system must be thoroughly flushed and cleaned before it is put into use. The purpose of flushing is to use a high-speed flowing fluid (usually oil or water) to flush out impurities inside the pipeline, while cleaning may involve the use of chemical agents to remove more stubborn dirt.

[0004] During the flushing and cleaning process, the bag filter is widely used as an important auxiliary equipment. It can not only effectively intercept and collect the impurities flushed down, but also monitor the blockage of the filter bag in real time through the pressure gauge and other indicating devices, so as to remind the operator to replace or clean the filter bag in time to avoid excessive blockage of the filter bag, which will lead to increased system pressure or reduced flow.

[0005] However, existing inspection filters are usually composed of an outer cylinder, filter bags, pressure gauges, drain valves and other components. The filter bag is its core component, usually made of materials with a certain filtering accuracy to intercept impurities in the oil. When the oil passes through the inspection filter, the impurities are intercepted by the filter bag, while the clean oil continues to flow. As the flushing progresses, the impurities on the filter bag gradually increase. The degree of blockage of the filter bag can be judged by observing the changes in the pressure gauge, and it can be cleaned or replaced in time.

[0006] However, when the existing ship pipeline inspection filter is in use, the filter bag and the outer cylinder are often fixed by bolts, which makes it troublesome to disassemble and assemble the filter bag. In addition, the entire inspection filter is large in size and made of carbon steel. It occupies a large area on site, is inconvenient to use, and is easy to rust, affecting the quality of serial washing. Summary of the invention

[0007] The object of the present invention is to provide a ship pipeline inspection filter to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ship pipeline inspection filter, comprising: an outer cylinder and a stainless steel filter bag, an upper cover is provided on the top of the outer cylinder, a pressure gauge connector is provided on one side of the top of the upper 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 on the inner side of the threaded sleeve, a filter bag flange is provided on the top of the stainless steel filter bag, the filter bag flange is located at the top of the threaded sleeve, a threaded gland is provided on the outside of the threaded sleeve, a through hole is provided in the center of the threaded gland, a discharge plug 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 the present invention, a limiting rod is provided on the outer wall of the bottom of the threaded cover, and a limiting block is provided on the top surface of the support plate. 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 the present invention, the top surface of the limit block is inclined, the limit rod is in contact with the end of the limit block with a higher inclined surface, and there is a smooth transition between the end of the limit block with a lower inclined surface and the top surface of the support plate.

[0011] As a further explanation of the present invention, a handle is provided on one side of the top of the upper cover, an outer tube flange is provided on the top of the outer tube, and a sealing gasket is provided between the upper cover and the outer tube flange.

[0012] As a further explanation of the present invention, a filter bag discharge pipe is provided in the center of the bottom of the stainless steel filter bag, a connecting pipe is provided in the center of the bottom of the outer tube, a plug is provided at the bottom end of the connecting pipe, a joint is provided at the top of the connecting pipe, and an interference fit is formed between the inner wall of the joint and the outer wall of the filter bag discharge pipe.

[0013] As a further explanation of the present invention, a rotating rod is rotatably provided in the center of the plug, the top end of the rotating rod extends to the inside of the stainless steel filter bag, stirring rods are provided on both sides of the top end of the rotating rod, and the rotating rod is L-shaped.

[0014] As a further explanation of the present invention, there are four limit rods, and the four limit rods are evenly arranged circumferentially on the outer wall of the threaded cover; there are four limit blocks, and the four limit blocks are evenly arranged circumferentially on the support plate.

[0015] As a further illustration of the present invention, an inner flange is provided at the top end of the threaded gland, and the inner flange can be pressed tightly onto the filter bag flange.

[0016] As a further illustration of the present invention, the outer cylinder, the support plate and the threaded gland are all made of stainless steel.

[0017] As a further description of the present invention, the stainless steel filter bag is in the shape of a cylindrical shell, and filter holes are opened on the circumferential side wall of the stainless steel filter bag.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention realizes that when the filter is used for ship pipeline inspection, the entire filter is installed in the detection section between the pipelines through the liquid inlet pipe and the liquid outlet pipe. When the liquid in the ship pipeline flows, the liquid enters the outer cylinder through the liquid inlet pipe, and the impurities in the pipeline are intercepted by the stainless steel filter bag, while the clean oil continues to flow. As the inspection proceeds, the impurities in the stainless steel filter bag gradually increase. The blockage degree of the stainless steel filter bag can be judged by observing the changes of the pressure gauge connected to the pressure gauge connector on the upper cover, and the filter bag can be cleaned or replaced in time.

[0020] When the stainless steel filter bag needs to be disassembled, since the stainless steel filter bag is fixed on the support plate through a threaded gland, when the stainless steel filter bag needs to be removed, the threaded gland needs to be unscrewed to take out the stainless steel filter bag, and the stainless steel filter bag is easy to disassemble;

[0021] In addition, the entire filter of this application is made of stainless steel, which greatly reduces the volume while meeting the process and use requirements, making it more convenient to use and transport. The body and accessories of this type of filter are all made of stainless steel, eliminating the quality impact of rust on the original steel filter.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 This is a stereoscopic diagram of a ship pipeline inspection filter according to the present invention;

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

[0026] Figure 4 This is a left side view of a ship pipeline inspection filter of the present invention;

[0027] Figure 5 A top view of a ship pipeline inspection filter according to the present invention;

[0028] Figure 6 This is a main cross-sectional view of a ship pipeline inspection filter according to the present invention;

[0029] Figure 7 for Figure 6 The enlarged structural diagram at A in the middle;

[0030] Figure 8 for Figure 6The enlarged structural diagram at B in the middle;

[0031] Fig. 9 A half-section view of a ship pipeline inspection filter according to the present invention;

[0032] Fig.10 for Fig. 9 Enlarged structural diagram at point C in the middle.

[0033] In the figure: 1. outer cylinder; 2. outer cylinder flange; 3. upper cover; 4. pressure gauge connector; 5. handle; 6. liquid inlet pipe; 7. discharge plug; 8. liquid outlet pipe; 9. stainless steel filter bag; 10. filter bag flange; 11. threaded gland; 12. limit rod; 13. support plate; 14. threaded sleeve; 15. limit block; 16. joint; 17. connecting pipe; 18. plug; 19. rotating rod; 20. stirring rod; 21. filter bag drain pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Example 1: Please refer to Figure 1-Figure 7 , Fig. 9 , Fig.10 The present invention provides a technical solution: a ship pipeline inspection filter, comprising: an outer cylinder 1 and a stainless steel filter bag 9, the outer cylinder 1 serving as the main supporting structure of the entire inspection filter, accommodating the stainless steel filter bag 9 and other internal components. Protect the internal components from interference from the external environment, while providing a sturdy frame to support the operation of the filter. An upper cover 3 is provided on the top of the outer cylinder 1, and the upper cover 3: closes the top of the outer cylinder 1 to prevent liquid leakage, and provides a platform for connecting the pressure gauge connector 4. Ensure that the internal pressure of the filter is stable to prevent performance degradation or safety hazards caused by leakage. A pressure gauge connector 4 is provided on one side of the top of the upper cover 3, and the pressure gauge connector 4 is connected to a pressure gauge to monitor the pressure changes inside the filter. By monitoring the pressure changes, the degree of blockage of the stainless steel filter bag 9 can be judged, and timely measures can be taken to clean or replace it.

[0036] A support plate 13 is provided on the inner wall of the middle part of the outer cylinder 1, and the support plate 13 supports the stainless steel filter bag 9 to ensure that it is in a stable position inside the filter. The stainless steel filter bag 9 is prevented from being displaced or deformed due to the flow of liquid, which affects the filtering effect. A threaded sleeve 14 is provided in the middle of the support plate 13, and the threaded sleeve 14 provides a threaded interface connected to the threaded gland 11 for fixing the stainless steel filter bag 9. A stainless steel filter bag 9 is provided on the inner side of the threaded sleeve 14, and the stainless steel filter bag 9 filters impurities in the pipeline, ensures that the clean oil continues to flow, effectively intercepts impurities in the pipeline, protects downstream equipment from pollution, and improves the overall performance of the system. The support plate 13 provides a stable support platform for the stainless steel filter bag 9, ensuring that the filter bag is in a stable position inside the filter. This helps to prevent the filter bag from being displaced or deformed due to the power generated by the flow of liquid, thereby ensuring the continuity and stability of the filtering process. Through the support of the support plate 13, the stainless steel filter bag 9 can maintain its designed shape and filtering area, and will not be deformed due to external pressure or liquid flow. This helps to improve the filtering efficiency, ensure that impurities are effectively intercepted, and extend the service life of the filter bag. Prevent the stainless steel filter bag 9 from shifting or deforming due to the flow of liquid, which would affect the filtering effect: Stable filter bag position is the key to ensuring the filtering effect. By preventing the filter bag from shifting or deforming, the consistency of its filtering performance can be maintained, avoiding the problem of reduced filtering efficiency or clogging caused by changes in the filter bag shape.

[0037] The design of the threaded sleeve 14 provides a reliable connection point for the threaded gland 11, making the fixing of the filter bag more secure and convenient. This connection method is not only easy to operate, but also ensures the stability of the filter bag in a high-pressure liquid environment. The threaded sleeve 14 provides a threaded interface connected to the threaded gland 11 for fixing the stainless steel filter bag 9: through the connection of the threaded interface, the threaded gland 11 can be tightly fixed on 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 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 can fully utilize the filter area of ​​the filter bag while ensuring that impurities are effectively trapped inside the filter bag. This layout helps to improve filtration efficiency and reduce the risk of impurities contaminating downstream equipment. The stainless steel filter bag 9 filters impurities in the pipeline to ensure that clean oil continues to flow: As the core component of the filtration system, the stainless steel filter bag 9 can effectively trap impurities in the pipeline and ensure 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] A filter bag flange 10 is provided at the top of the stainless steel filter bag 9. The filter bag flange 10 is located at the top of the threaded sleeve 14. A threaded gland 11 is provided on the outside of the threaded sleeve 14. A through hole is provided in the center of the threaded gland 11. An inner flange is provided at the top of the threaded gland 11. The inner flange can be pressed against the filter bag flange 10. The filter bag flange 10 connects the stainless steel filter bag 9 and the threaded sleeve 14, and provides a sealing surface to ensure that the connection between the stainless steel filter bag 9 and the filter body is tight and leak-free, thereby ensuring the filtering effect. The threaded gland 11 is fixed to the threaded sleeve 14 by threaded connection, and the filter bag flange 10 is pressed to fix the stainless steel filter bag 9. A simple disassembly and assembly method is provided to facilitate the replacement and maintenance of the stainless steel filter bag 9.

[0040] A discharge plug 7 is provided on one side of the bottom of the outer cylinder 1, and the discharge plug 7 discharges the liquid or impurities inside the filter when necessary. A backwashing water pipe can also be connected to backwash the stainless steel filter bag 9 when necessary. It is convenient to clean and maintain the filter to ensure the long-term stable operation of the filter. A liquid outlet pipe 8 is provided on the other side of the bottom of the outer cylinder 1, and a liquid inlet pipe 6 is provided on one side of the upper half of the outer cylinder 1. The entire filter is installed in the detection section between the pipelines through the liquid inlet pipe 6 and the liquid outlet pipe 8 to ensure that the filter can be correctly connected to the pipeline system to play a filtering role. The stainless steel filter bag 9 is in the shape of a cylindrical shell, and filter holes are opened on the circumferential side wall of the stainless steel filter bag 9.

[0041] A limiting rod 12 is provided on the outer wall of the bottom of the threaded gland 11, and a limiting block 15 is provided 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, and the four limiting rods 12 are evenly arranged circumferentially on the outer wall of the threaded gland 11. There are four limiting blocks 15, and the four limiting blocks 15 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 gland 11. When the threaded gland 11 receives a force in the loosening direction, the anti-loosening effect of the threaded gland 11 is achieved through the abutment between the limiting rod 12 and the limiting block 14.

[0042] The top surface of the limit block 15 is inclined, the limit rod 12 is in contact with the end of the limit block 15 with a higher inclined surface, and there is a smooth transition between the end of the limit block 15 with a lower inclined surface and the top surface of the support plate 13. During the tightening process of the threaded gland 11, the limit rod 12 can pass over the limit block 15 through the inclined surface, so that the limit rod 12 can be in contact with the side with a higher inclined surface of the limit block 15 to achieve an anti-loosening effect. In addition, when disassembling the stainless steel filter bag 9, the limit rod 12 on the threaded gland 11 can be lifted. The limit rod 12 has a certain elasticity in the up and down directions, which is convenient for personnel to manually loosen the threaded gland 11.

[0043] A handle 5 is provided on one side of the top of the upper cover 3, an outer tube flange 2 is provided on the top of the outer tube 1, and a sealing gasket is provided between the upper cover 3 and the outer tube flange 2 to facilitate the connection and sealing between the upper cover 3 and the outer tube 1.

[0044] Example 2: Please refer to Figure 1-Figure 10 The present invention provides a technical solution: a ship pipeline inspection filter, comprising: an outer cylinder 1 and a stainless steel filter bag 9, the outer cylinder 1 serving as the main supporting structure of the entire inspection filter, accommodating the stainless steel filter bag 9 and other internal components. Protect the internal components from interference from the external environment, while providing a sturdy frame to support the operation of the filter. An upper cover 3 is provided on the top of the outer cylinder 1, and the upper cover 3: closes the top of the outer cylinder 1 to prevent liquid leakage, and provides a platform for connecting the pressure gauge connector 4. Ensure that the internal pressure of the filter is stable to prevent performance degradation or safety hazards caused by leakage. A pressure gauge connector 4 is provided on one side of the top of the upper cover 3, and the pressure gauge connector 4 is connected to a pressure gauge to monitor the pressure changes inside the filter. By monitoring the pressure changes, the degree of blockage of the stainless steel filter bag 9 can be judged, and timely measures can be taken to clean or replace it.

[0045] A support plate 13 is provided on the inner wall of the middle part of the outer cylinder 1. The support plate 13 supports the stainless steel filter bag 9 to ensure its stable position inside the filter. The stainless steel filter bag 9 is prevented from shifting or deforming due to the flow of liquid, which affects the filtering effect. A threaded sleeve 14 is provided in the middle of the support plate 13. The threaded sleeve 14 provides a threaded interface connected to the threaded gland 11 for fixing the stainless steel filter bag 9. A stainless steel filter bag 9 is provided on the inner side of the threaded sleeve 14. The stainless steel filter bag 9 filters impurities in the pipeline, ensures that the clean oil continues to flow, effectively intercepts impurities in the pipeline, protects downstream equipment from pollution, and improves the overall performance of the system.

[0046] A filter bag flange 10 is provided at the top of the stainless steel filter bag 9. The filter bag flange 10 is located at the top of the threaded sleeve 14. A threaded gland 11 is provided on the outside of the threaded sleeve 14. A through hole is provided in the center of the threaded gland 11. An inner flange is provided at the top of the threaded gland 11. The inner flange can be pressed against the filter bag flange 10. The filter bag flange 10 connects the stainless steel filter bag 9 and the threaded sleeve 14, and provides a sealing surface to ensure that the connection between the stainless steel filter bag 9 and the filter body is tight and leak-free, thereby ensuring the filtering effect. The threaded gland 11 is fixed to the threaded sleeve 14 by threaded connection, and the filter bag flange 10 is pressed to fix the stainless steel filter bag 9. A simple disassembly and assembly method is provided to facilitate the replacement and maintenance of the stainless steel filter bag 9.

[0047] A discharge plug 7 is provided on one side of the bottom of the outer cylinder 1, and the discharge plug 7 discharges the liquid or impurities inside the filter when necessary. A backwashing water pipe can also be connected to backwash the stainless steel filter bag 9 when necessary. It is convenient to clean and maintain the filter to ensure the long-term stable operation of the filter. A liquid outlet pipe 8 is provided on the other side of the bottom of the outer cylinder 1, and a liquid inlet pipe 6 is provided on one side of the upper half of the outer cylinder 1. The entire filter is installed in the detection section between the pipelines through the liquid inlet pipe 6 and the liquid outlet pipe 8 to ensure that the filter can be correctly connected to the pipeline system to play a filtering role. The stainless steel filter bag 9 is in the shape of a cylindrical shell, and filter holes are opened on the circumferential side wall of the stainless steel filter bag 9.

[0048] A limiting rod 12 is provided on the outer wall of the bottom of the threaded gland 11, and a limiting block 15 is provided 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, and the four limiting rods 12 are evenly arranged circumferentially on the outer wall of the threaded gland 11. There are four limiting blocks 15, and the four limiting blocks 15 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 gland 11. When the threaded gland 11 receives a force in the loosening direction, the anti-loosening effect of the threaded gland 11 is achieved through the abutment between the limiting rod 12 and the limiting block 14.

[0049] The top surface of the limit block 15 is inclined, the limit rod 12 is in contact with the end of the limit block 15 with a higher inclined surface, and there is a smooth transition between the end of the limit block 15 with a lower inclined surface and the top surface of the support plate 13. During the tightening process of the threaded gland 11, the limit rod 12 can pass over the limit block 15 through the inclined surface, so that the limit rod 12 can be in contact with the side with a higher inclined surface of the limit block 15 to achieve an anti-loosening effect. In addition, when disassembling the stainless steel filter bag 9, the limit rod 12 on the threaded gland 11 can be lifted. The limit rod 12 has a certain elasticity in the up and down directions, which is convenient for personnel to manually loosen the threaded gland 11.

[0050] A handle 5 is provided on one side of the top of the upper cover 3, an outer tube flange 2 is provided on the top of the outer tube 1, and a sealing gasket is provided between the upper cover 3 and the outer tube flange 2 to facilitate the connection and sealing between the upper cover 3 and the outer tube 1.

[0051] Please also read Figure 8 A filter bag drainage pipe 21 is provided at the center of the bottom of the stainless steel filter bag 9. The filter bag drainage pipe 21 is used 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. It allows the impurities accumulated in the stainless steel filter bag 9 to be discharged through the pipeline by opening the plug 18 when necessary, without disassembling the filter bag, thereby improving maintenance efficiency.

[0052] A connecting pipe 17 is provided at the center of the bottom of the outer cylinder 1, a plug 18 is provided at the bottom of the connecting pipe 17, and a joint 16 is provided at the top of the connecting pipe 17. An interference fit is formed between the inner wall of the joint 16 and the outer wall of the filter bag drainage pipe 21. The connecting pipe 17 connects the filter bag drainage 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 pipeline layout, the occupied space inside the filter is reduced, and the compactness of the overall structure is improved. The design of the connecting pipe makes the installation and removal of the plug 18 more convenient, which is conducive to daily maintenance and cleaning work.

[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 sewage is not discharged. It is ensured that the inside of the connecting pipe 17 remains closed when sewage is not discharged to prevent liquid or impurities from leaking out. When sewage discharge is required, the plug 18 can be directly opened through the filter bag sewage pipe 21 and the connecting pipe 17 to flush the impurities in the stainless steel filter bag 9 into the connecting pipe 17 for discharge.

[0054] A rotating rod 19 is provided in the center of the plug 18 for rotation. The top of the rotating rod 19 extends to the inside of the stainless steel filter bag 9. Stirring rods 20 are provided on both sides of the top of the rotating rod 19. The rotating rod 19 is L-shaped. By rotating the rotating rod 19 and the stirring rod 20, the impurities at the bottom of the stainless steel filter bag 9 can be stirred and loosened, which is convenient for the smooth discharge of the impurities. By rotating the rotating rod 19, the stirring rod 20 is driven to stir and loosen the impurities inside the stainless steel filter bag 9 to facilitate the smooth discharge of the impurities. The stirring action of the stirring rod 20 helps to break the adhesion and accumulation between the impurities, making it easier for the impurities to be flushed out of the filter bag, thereby improving the sewage discharge efficiency. Regular stirring operation can reduce the accumulation of impurities at the bottom of the filter bag, thereby reducing the risk of clogging the filter bag and extending the service life of the filter bag. The L-shaped design of the rotating rod 19 makes the operation more convenient, and the stirring operation can 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 hose and the system used in combination, the filter size is reduced from φ168*400 to φ140*285; the original filter inlet and outlet φ60 is reduced to φ40; at the same time, the stop valve used in the original filter is updated to a stainless steel ball valve. This type of filter has been miniaturized. While meeting the process and use requirements, the volume is greatly reduced and the weight is reduced by nearly 50%, making it more convenient to use and transport. The body and accessories of this type of filter are all made of stainless steel, eliminating the quality impact of rust on the original steel filter.

[0056] When the ship pipeline inspection filter is used, the entire filter is installed in the detection section between the pipelines through the liquid inlet pipe 6 and the liquid outlet pipe 8. When the liquid in the ship pipeline flows, the liquid enters the outer cylinder 1 through the liquid inlet pipe 6, and the impurities in the pipeline are intercepted by the stainless steel filter bag 9, while the clean oil continues to flow. As the inspection proceeds, the impurities in the stainless steel filter bag 9 gradually increase. The blockage degree 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 upper cover 3, and it can be cleaned or replaced in time;

[0057] When the stainless steel filter bag 9 needs to be disassembled, since the stainless steel filter bag 9 is connected and fixed to the support plate 13 through the threaded gland 11, when the stainless steel filter bag 9 needs to be removed, the threaded gland 11 needs to be unscrewed to take out the stainless steel filter bag 9, and the stainless steel filter bag 9 is easy to disassemble;

[0058] In addition, the entire filter of this application is made of stainless steel, which greatly reduces the volume while meeting the process and use requirements, making it more convenient to use and transport. The body and accessories of this type of filter are all made of stainless steel, eliminating the quality impact of rust on the original steel filter.

[0059] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

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

2. A ship pipeline inspection filter according to claim 1, characterized in that: A limiting rod (12) is provided on the outer wall of the bottom of the threaded gland (11), and a limiting block (15) is provided 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).

3. A ship pipeline inspection filter according to claim 2, characterized in that: The top surface of the limit block (15) is inclined, the limit rod (12) abuts against the end of the limit block (15) with a higher inclined surface, and a smooth transition is formed between the end of the limit block (15) with a lower inclined surface and the top surface of the support plate (13).

4. A ship pipeline inspection filter according to claim 1, characterized in that: A handle (5) is provided on one side of the top of the upper cover (3), an outer tube flange (2) is provided on the top of the outer tube (1), and a sealing gasket is provided between the upper cover (3) and the outer tube flange (2).

5. A ship pipeline inspection filter according to claim 1, characterized in that: A filter bag drainage pipe (21) is provided at the center of the bottom of the stainless steel filter bag (9), a connecting pipe (17) is provided at the center of the bottom of the outer cylinder (1), a plug (18) is provided at the bottom end of the connecting pipe (17), a joint (16) is provided at the top end of the connecting pipe (17), and an interference fit is formed between the inner wall of the joint (16) and the outer wall of the filter bag drainage pipe (21).

6. A ship pipeline inspection filter according to claim 5, characterized in that: A rotating rod (19) is rotatably provided at the center of the plug (18), the top end of the rotating rod (19) extends into the interior of the stainless steel filter bag (9), stirring rods (20) are provided on both sides of the top end of the rotating rod (19), and the rotating rod (19) is L-shaped.

7. A ship pipeline inspection filter according to claim 2, characterized in that: There are four limit rods (12), and the four limit rods (12) are evenly arranged circumferentially on the outer wall of the threaded cover (11); there are four limit blocks (15), and the four limit blocks (15) are evenly arranged circumferentially on the support plate (13).

8. A ship pipeline inspection filter according to claim 1, characterized in that: The top end of the threaded gland (11) is provided with an inner flange, and the inner flange can be pressed tightly onto the filter bag flange (10).

9. A ship pipeline inspection filter according to claim 1, characterized in that: The outer cylinder (1), the support plate (13) and the threaded gland (11) are all made of stainless steel.

10. A ship pipeline inspection filter according to claim 1, characterized in that: The stainless steel filter bag (9) is in the shape of a cylindrical shell, and filter holes are provided on the circumferential side wall of the stainless steel filter bag (9).

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