A marine welded copper ring loose steel flange

Abstract

This utility model discloses a marine welded copper ring loose-fitting steel flange, belonging to the technical field of marine welded copper ring loose-fitting steel flanges. The key technical points include two connecting pipes, each with a flange assembly welded to its surface, and auxiliary components on the surfaces of the flange assemblies. Each flange assembly includes a first sleeve block, with a second sleeve block fixedly connected to the right side of the first sleeve block. The first and second sleeve blocks are welded to the surface of the connecting pipes. A first connecting flange and a second connecting flange are fitted onto the surfaces of the first and second sleeve blocks. Bolts are threaded into the internal parts of the first and second connecting flanges. This design solves the problem in most existing copper ring loose-fitting flanges where the copper ring is fitted onto the surface of the connecting pipe. In such cases, when the distance between the two pipes to be joined is short, the copper ring length is insufficient, leading to installation difficulties.

Description

Technical Field

[0001] This utility model relates to the technical field of marine welded copper ring loose-fitting steel flanges, and particularly to a marine welded copper ring loose-fitting steel flange. Background Technology

[0002] Marine welded copper ring loose-fitting steel flanges are key components used to connect pipelines in marine piping systems. Their main function is to achieve detachable and sealed connections between different pipelines, and to cope with vibrations, temperature variations, deformations, and installation deviations during ship navigation. Structurally, the steel flange is the main body, with a copper ring fixed by welding. The "loose-fitting" design allows for fine-tuning of the flange position during installation to compensate for pipeline installation errors. At the same time, when the ship vibrates or the pipeline expands and contracts due to temperature changes, the loose-fitting structure releases stress, preventing cracks and leaks in the pipeline or flange due to rigid connections. They are widely used in marine seawater cooling systems, fuel systems, compressed air systems, and other pipeline connection scenarios to ensure the stability and safety of marine pipeline operation.

[0003] To address the aforementioned issues, existing patents offer solutions. In most existing copper ring loose flanges, the copper ring is fitted onto the surface of the connecting pipe. However, if the copper ring is fitted onto the surface of the connecting pipe, and the distance between the two pipes that need to be connected is short, the length of the copper ring may not be sufficient, leading to difficulties in fitting it.

[0004] Therefore, a marine welded copper ring loose-fitting steel flange is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a marine welded copper ring loose-fitting steel flange, which can solve the problem that in most existing copper ring loose-fitting flanges, the copper ring is fitted onto the surface of the connecting pipe. If it is fitted onto the surface of the connecting pipe, the length of the copper ring is not sufficient when the distance between the two pipes that need to be connected is short, resulting in difficulty in fitting it.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine welded copper ring loose-fitting steel flange, comprising two connecting pipes, each of which has a flange assembly welded to its surface, and auxiliary components provided on the surface of the two flange assemblies.

[0007] The flange assembly includes a first sleeve block, a second sleeve block is fixedly connected to the right side of the first sleeve block, the first sleeve block and the second sleeve block are welded to the surface of the connecting pipe, a first connecting flange and a second connecting flange are sleeved on the surface of the first sleeve block and the second sleeve block, and bolts are threaded inside the first connecting flange and the second connecting flange.

[0008] Preferably, the auxiliary component includes two threaded rods, with a clamping plate threadedly connected to one side of the two threaded rods, and both clamping plates are made of silicone.

[0009] Preferably, protective plates are fixedly connected to the opposite sides of the two clamping plates, and both protective plates are made of silicone.

[0010] Preferably, knobs are fixedly connected to opposite sides of the two threaded rods, and anti-slip sleeves are fitted on the surfaces of both knobs.

[0011] Preferably, the surfaces of the two first sets of devices and the second sets of devices are fitted with a first protective cover and a second protective cover, both of which are made of stainless steel.

[0012] Preferably, the bottom of the first protective cover is welded with a splicing block, and the top of the second protective cover is provided with a splicing groove that cooperates with the splicing block.

[0013] Preferably, both the first and second protective covers are fixedly connected to a sealing sleeve, and the sealing sleeve is made of silicone.

[0014] Preferably, auxiliary grooves are provided on opposite sides of the first and second sleeve blocks, and auxiliary blocks that cooperate with the auxiliary grooves are fixedly connected to opposite sides of the first and second connecting flanges.

[0015] Preferably, both the first and second protective covers are fixedly connected to corrosion-resistant sleeves, and both corrosion-resistant sleeves are made of silicone.

[0016] Preferably, the first sleeve block and the second sleeve block are welded to opposite sides, and both the first sleeve block and the second sleeve block are welded to the surface of the connecting pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The present application sets up a structure that replaces the traditional single copper ring with a combination of a weldable first set of mounting blocks and a second set of mounting blocks, which solves the problem of difficulty in mounting the existing copper ring loose flange when the distance between two mating pipes is short due to insufficient copper ring length, and greatly improves the adaptability in complex installation scenarios of marine pipelines.

[0019] 2. The flange assembly in this application adopts a "loose fit" design. With the positioning and matching of the first connecting flange, the second connecting flange, the auxiliary groove, and the auxiliary block, it can not only make fine adjustments to the position during installation to compensate for pipeline installation deviations, but also move slightly with the thermal expansion and contraction or vibration of the pipeline during ship navigation. This effectively releases the stress generated by the rigid connection, avoids the risk of cracks or leaks in the pipeline or flange, and ensures the stability of media transportation. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the marine welded copper ring loose-fitting steel flange of this utility model;

[0021] Figure 2 This is a schematic diagram of the flange assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the auxiliary component of this utility model;

[0023] Figure 4 This is a schematic diagram showing the disassembled components of this utility model;

[0024] Figure 5 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0025] In the diagram, 1. Connecting pipe; 2. Flange assembly; 201. First set block; 202. Second set block; 203. First connecting flange; 204. Second connecting flange; 205. Bolt; 3. Auxiliary assembly; 301. Threaded rod; 302. Clamping plate; 303. Protective plate; 304. Knob; 305. Anti-slip sleeve; 4. First protective cover; 5. Second protective cover; 6. Splicing block; 7. Splicing groove; 8. Sealing sleeve; 9. Auxiliary groove; 10. Auxiliary block; 11. Corrosion-resistant sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A marine welded copper ring loose steel flange includes two connecting pipes 1, each of which has a flange assembly 2 welded to its surface, and an auxiliary assembly 3 provided on the surface of the two flange assemblies 2.

[0029] The flange assembly 2 includes a first sleeve block 201, a second sleeve block 202 fixedly connected to the right side of the first sleeve block 201, the first sleeve block 201 and the second sleeve block 202 are welded to the surface of the connecting pipe 1, a first connecting flange 203 and a second connecting flange 204 are sleeved on the surface of the first sleeve block 201 and the second sleeve block 202, and bolts 205 are threadedly connected to the inside of the first connecting flange 203 and the second connecting flange 204.

[0030] In this embodiment: Connecting pipe 1 serves as the basic connecting component of the ship's pipeline, forming the main channel for media transport. Its surface is used to weld flange assembly 2, providing a fixed carrier for subsequent flange docking. It also needs to match other pipeline sections on the ship to ensure the continuity of media transport, forming the "basic skeleton" of the entire flange connection structure. Flange assembly 2 is the core structure enabling the detachable docking of the two connecting pipes 1, undertaking connection, sealing, and stress compensation functions. Auxiliary assembly 3 is mainly used to enhance the stability, ease of operation, and protection of the flange docking. A first set of components is also included. The first set of fittings 201 and the second set of fittings 202 are two integral parts. The inner diameter of the two integral parts is fitted onto the surface of the connecting pipe 1 and then welded to prevent the small gap between the two connecting pipes 1 on opposite sides from making it difficult to fit the copper ring. By setting the first connecting flange 203, the second connecting flange 204 and the bolts 205, the first connecting flange 203 and the second connecting flange 204 are also two integral parts. After being spliced ​​together, they are bolted together with bolts 205, so that the first connecting flange 203 and the second connecting flange 204 can slide on the surface of the connecting pipe, thereby achieving the function of loosely fitting the copper ring steel flange.

[0031] Specifically, such as Figure 2 As shown, the auxiliary component 3 includes two threaded rods 301, and a clamping plate 302 is threadedly connected to one side of the two threaded rods 301. Both clamping plates 302 are made of silicone.

[0032] Specifically, such as Figure 2 As shown, protective plates 303 are fixedly connected to the opposite sides of the two clamping plates 302, and both protective plates 303 are made of silicone.

[0033] Specifically, such as Figure 2 As shown, knobs 304 are fixedly connected to opposite sides of the two threaded rods 301, and anti-slip sleeves 305 are fitted on the surfaces of the two knobs 304.

[0034] In this embodiment: A threaded rod 301 is provided, which extends laterally through both sides of the flange assembly 2. It is a "transmission component" for adjusting the position of the clamping plate 302. By rotating the threaded rod 301, the clamping plate 302 can be moved closer to or further away from the connecting pipe 1, thereby achieving auxiliary clamping of the connecting pipe 1 or the flange assembly 2. This prevents gaps from forming between the flange and the sleeve block when the ship vibrates, further improving the connection stability. The clamping plate 302 can contact the first connecting flange 203 and the second connecting flange 204, limiting the position of the first connecting flange 203 and the second connecting flange 204. A protective plate 303 is provided and fixed on the opposite side of the clamping plate 302. It is also made of silicone and serves as a "buffer protective layer" for the clamping plate 302. Its function is to further enhance the fit during clamping. A knob 304 is provided to facilitate user operation of the threaded rod 301. An anti-slip sleeve 305 is provided to facilitate user operation of the knob 304.

[0035] Specifically, such as Figure 1 , Figure 4 As shown, the surfaces of the two first set blocks 201 and the second set blocks 202 are fitted with a first protective cover 4 and a second protective cover 5, both of which are made of stainless steel.

[0036] Specifically, such as Figure 4 As shown, the bottom of the first protective cover 4 is welded with a splicing block 6, and the top of the second protective cover 5 is provided with a splicing groove 7 that is used in conjunction with the splicing block 6.

[0037] In this embodiment: by setting the first protective cover 4 and the second protective cover 5, the main function is to isolate corrosive or impurities such as seawater, salt, and dust in the external environment, and prevent the flange assembly 2 from being corroded and damaged. The stainless steel material has the characteristics of high strength and resistance to marine corrosion, and can adapt to the harsh operating environment of ships at sea for a long time. By setting the splicing block 6 and the splicing groove 7, the splicing block 6 and the splicing groove 7 are snapped together, so that the first protective cover 4 and the second protective cover 5 can be quickly spliced ​​together.

[0038] Specifically, such as Figure 4 As shown, both the first protective cover 4 and the second protective cover 5 are fixedly connected to a sealing sleeve 8, which is made of silicone.

[0039] Specifically, such as Figure 5 As shown, the first set of mounting blocks 201 and the second set of mounting blocks 202 are provided with auxiliary grooves 9 on opposite sides, and the first connecting flange 203 and the second connecting flange 204 are fixedly connected with auxiliary blocks 10 that cooperate with the auxiliary grooves 9 on opposite sides.

[0040] In this embodiment: A sealing sleeve 8 is set and fixed inside the first protective cover 4 and the second protective cover 5. The material is silicone and it is the "internal sealing layer" of the first protective cover 4 and the second protective cover 5. Its function is to fill the gap between the first protective cover 4, the second protective cover 5 and the flange assembly 2, further enhance the protective sealing performance, and prevent seawater, moisture and other substances from seeping in from the joint of the first protective cover 4, the second protective cover 5 and the flange assembly 2. The silicone material has good elasticity and corrosion resistance and can adapt to the temperature changes and media erosion of the ship environment. By setting an auxiliary groove 9 and an auxiliary block 10, the auxiliary block 10 and the auxiliary groove 9 work together to limit the relative movement between the first connecting flange 203 and the second connecting flange 204 and the sleeve block, so as to avoid the flange from shifting when the ship vibrates, which would cause uneven force on the bolt 205 or failure of the seal at the joint. At the same time, the auxiliary block 10 can also disperse the pressure of the flange on the sleeve block and extend the service life of the sleeve block.

[0041] Specifically, such as Figure 1 As shown, corrosion-resistant sleeves 11 are fixedly connected to the surfaces of the first protective cover 4 and the second protective cover 5, and both corrosion-resistant sleeves 11 are made of silicone.

[0042] Specifically, such as Figure 2 As shown, the first set of fixtures 201 and the second set of fixtures 202 are welded to opposite sides, and both the first set of fixtures 201 and the second set of fixtures 202 are welded to the surface of the connecting pipe 1.

[0043] In this embodiment: A corrosion-resistant sleeve 11 is provided and fixed to the surface of the first protective cover 4 and the second protective cover 5. The material is silicone and it is the "external anti-corrosion layer" of the first protective cover 4 and the second protective cover 5. Its function is to further enhance the corrosion resistance of the first protective cover 4 and the second protective cover 5. Especially in the environment where ships are in contact with seawater and salt for a long time, it can reduce the corrosion and oxidation of the surface of the first protective cover 4 and the second protective cover 5. At the same time, the silicone material has a certain impact resistance, which can protect the first protective cover 4 and the second protective cover 5 from external collision damage and extend the service life of the overall protective structure.

[0044] Working principle: First, two connecting pipes 1 are used as the basic channels for medium transportation. Flange assemblies 2, consisting of a first set of fitting blocks 201 and a second set of fitting blocks 202, are welded to their surfaces. By welding the first set of fitting blocks 201 and the second set of fitting blocks 202 on opposite sides, a double-piece fitting structure is formed. This avoids the difficulty of fitting traditional single copper rings due to short pipe spacing, and enhances the fixing stability with the connecting pipes 1, providing a reliable carrier for subsequent flange docking. Then, the first connecting flange 203 and the second connecting flange 204 are connected separately. The first and second fitting blocks 201 and 202, respectively, are fitted onto the surfaces of the flanges. Utilizing the "loosening" characteristic, the flange position is fine-tuned to compensate for pipeline installation deviations. At this time, the auxiliary block 10 on the opposite side of the first connecting flange 203 and the second connecting flange 204 will embed into the auxiliary groove 9 on the opposite side of the first fitting block 201 and the second fitting block 202, restricting the relative movement of the flanges and fitting blocks and preventing flange displacement during ship vibration. Subsequently, the bolts 205 are passed through the threaded holes of the first connecting flange 203 and the second connecting flange 204 and tightened, so that... The two connecting flanges fit tightly together to achieve a sealed connection of the connecting pipe 1. Simultaneously, rotating the knob 304 with the anti-slip sleeve 305 in the auxiliary assembly 3 drives the threaded rod 301 to move the silicone clamping plate 302 and protective plate 303 closer to the connecting pipe 1 and flange assembly 2. This flexible clamping further enhances the connection stability and prevents gaps caused by vibration. Finally, the stainless steel first protective cover 4 and second protective cover 5 are fitted onto the surface of the flange assembly 2. The splicing block 6 at the bottom of the first protective cover 4 and the splicing block 6 at the top of the second protective cover 5... The groove 7 enables precise splicing. The silicone sealing sleeve 8 inside the first protective cover 4 and the second protective cover 5 fills the gap with the flange assembly 2, and the silicone corrosion-resistant sleeve 11 on the surface isolates the seawater salt corrosion, forming a double protection of "internal sealing + external corrosion protection". During the ship's navigation, the loose sleeve structure can move slightly with the thermal expansion and contraction or vibration of the pipeline, releasing the rigid connection stress. The bolt 205, auxiliary component 3 and the first protective cover 4 and the second protective cover 5 work together to ensure that the pipeline medium is leak-free and adapt to complex working conditions such as seawater cooling and fuel transportation on ships.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A marine welded copper ring loose-fitting steel flange, comprising two connecting pipes (1), characterized in that: Flange assemblies (2) are welded to the surfaces of both connecting pipes (1), and auxiliary assemblies (3) are provided on the surfaces of the two flange assemblies (2); The flange assembly (2) includes a first sleeve block (201), a second sleeve block (202) is fixedly connected to the right side of the first sleeve block (201), the first sleeve block (201) and the second sleeve block (202) are welded to the surface of the connecting pipe (1), a first connecting flange (203) and a second connecting flange (204) are sleeved on the surface of the first sleeve block (201) and the second sleeve block (202), and bolts (205) are threadedly connected to the inside of the first connecting flange (203) and the second connecting flange (204).

2. A welded copper ring loose flange as claimed in claim 1, wherein: The auxiliary component (3) includes two threaded rods (301), and a clamping plate (302) is threadedly connected to one side of the two threaded rods (301) opposite to each other. Both clamping plates (302) are made of silicone.

3. A welded copper ring loose flange as claimed in claim 2, wherein: Each of the two clamping plates (302) has a protective plate (303) fixedly connected to one side of the opposite side. Both protective plates (303) are made of silicone.

4. A welded copper ring loose tube steel flange for marine use according to claim 2, characterized in that: A knob (304) is fixedly connected to each of the two threaded rods (301) on opposite sides, and the surfaces of the two knobs (304) are covered with anti-slip sleeves (305).

5. A welded copper ring type flexible flange for marine use according to claim 1, characterized in that: The surfaces of the two first set of devices (201) and the second set of devices (202) are fitted with a first protective cover (4) and a second protective cover (5), both of which are made of stainless steel.

6. A welded copper ring loose flange as claimed in claim 5, wherein: The bottom of the first protective cover (4) is welded with a splicing block (6), and the top of the second protective cover (5) is provided with a splicing groove (7) that works with the splicing block (6).

7. A welded copper ring type flexible flange for marine use according to claim 5, characterized in that: The first protective cover (4) and the second protective cover (5) are both fixedly connected with sealing sleeves (8), and the sealing sleeves (8) are made of silicone.

8. A welded copper ring type flexible flange for marine use according to claim 1, characterized in that: The first set block (201) and the second set block (202) are provided with auxiliary grooves (9) on opposite sides, and the first connecting flange (203) and the second connecting flange (204) are fixedly connected with auxiliary blocks (10) that cooperate with the auxiliary grooves (9).

9. A welded copper ring type flexible flange for marine use according to claim 5, characterized in that: The first protective cover (4) and the second protective cover (5) are both fixedly connected with corrosion-resistant sleeves (11), and the material of the two corrosion-resistant sleeves (11) is silicone.

10. A welded copper ring type flexible flange for marine use according to claim 1, characterized in that: The first sleeve block (201) and the second sleeve block (202) are welded to opposite sides, and both the first sleeve block (201) and the second sleeve block (202) are welded to the surface of the connecting pipe (1).

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