A marine engine gas bellows assembly

Abstract

The utility model discloses a marine engine gas bellows assembly, marine engine gas bellows assembly includes inner layer bellows and outer layer bellows, and the outer layer bellows is set on the outside of inner layer bellows, and one end of inner layer bellows and outer layer bellows is fixedly connected with flange no. 1, and the other end of inner layer bellows and outer layer bellows is fixedly connected with flange no. 2, and inner layer bellows has inner chamber, and the outer chamber is formed between inner layer bellows and outer layer bellows. Marine engine gas bellows assembly still includes the diffusion structure for diffusion leaked gas, and diffusion structure can diffuse leaked gas in time, and the explosion -proof bellows assembly of marine engine of using the utility model can effectively avoid explosion, and guarantee safety.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, specifically relating to a marine engine gas bellows assembly. Background Technology

[0002] Bellows are key components in marine gas engine piping systems used to compensate for displacement and absorb vibration. The harsh marine environment, characterized by high vibration and strong salt spray corrosion, places extremely stringent safety requirements on gas pipelines.

[0003] Currently, widely used corrugated pipes pose a fatal safety hazard: if the pipe wall ruptures due to fatigue, corrosion, or accidental damage, high-pressure gas will leak directly into the enclosed engine compartment. The gas rapidly accumulates and mixes with air, easily reaching its explosive limit. Upon encountering an ignition source, it can ignite or explode, with unimaginable consequences. Existing technology relies solely on leak sensors for alarms, but by the time the alarm sounds, the danger has already existed; this is a passive protection measure and cannot fundamentally prevent the risk of explosion. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a marine engine explosion-proof bellows assembly. Using the marine engine explosion-proof bellows assembly of this utility model can effectively prevent explosions and ensure safety.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a marine engine gas bellows assembly, including an inner bellows and an outer bellows, wherein the outer bellows is sleeved on the outside of the inner bellows, one end of the inner bellows and the outer bellows are fixedly connected to a flange one, and the other end of the inner bellows and the outer bellows are fixedly connected to a flange two, wherein the inner bellows has an inner cavity, and an outer cavity is formed between the inner bellows and the outer bellows; the marine engine gas bellows assembly also includes a venting structure for venting leaked gas.

[0006] Furthermore, the venting structure includes a flange vent hole disposed on the flange and the flange vent hole is connected to the outer cavity.

[0007] Furthermore, the venting structure also includes a flange second vent hole provided on the flange second, and the flange second vent hole is connected to the outer cavity.

[0008] Furthermore, the flange vent hole is inclined.

[0009] Furthermore, the two vent holes of the flange are inclined.

[0010] Furthermore, the flange has six vent holes evenly distributed in a ring.

[0011] Furthermore, the flange has six vent holes evenly distributed in a ring.

[0012] Furthermore, the flange is provided with an inner sealing ring A and an outer sealing ring A, and the vent hole of the flange is located between the inner sealing ring A and the outer sealing ring A.

[0013] Furthermore, the flange two is also provided with an inner sealing ring B and an outer sealing ring B, and the vent hole of the flange two is located between the inner sealing ring B and the outer sealing ring B.

[0014] Furthermore, flange one is provided with flange one mounting hole, and flange two is provided with flange two mounting hole.

[0015] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] The marine engine gas bellows assembly includes an inner bellows and an outer bellows. The outer bellows is sleeved on the outside of the inner bellows. One end of both the inner and outer bellows is fixedly connected to a flange, and the other end is fixedly connected to a flange. The inner bellows has an inner cavity, and an outer cavity is formed between the inner and outer bellows. The marine engine gas bellows assembly also includes a venting structure for releasing leaked gas. The venting structure can release leaked gas in a timely manner. Using the marine engine explosion-proof bellows assembly of this invention can effectively prevent explosions and ensure safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the marine engine gas bellows assembly of this utility model;

[0018] Figure 2 yes Figure 1 Side view;

[0019] Figure 3 This is a structural schematic diagram of the marine engine gas bellows assembly of this utility model in use.

[0020] In the diagram, the direction of the arrows indicates the direction of gas flow;

[0021] In the diagram, 1. Inner cavity; 2. Outer cavity; 3. Inner bellows; 4. Outer bellows; 5. Flange 1; 51. Vent hole of Flange 1; 52. Mounting hole of Flange 1; 6. Flange 2; 61. Vent hole of Flange 2; 62. Mounting hole of Flange 2; 7. Inner sealing ring A; 8. Outer sealing ring A; 9. Inner sealing ring B; 10. Outer sealing ring B; 11. Gas source; 12. Inlet pipe; 13. Inlet side protective pipe; 14. Inlet side exhaust branch pipe; 15. Outlet pipe; 16. Outlet side protective pipe; 17. Outlet side exhaust branch pipe; 18. Main exhaust pipe; 19. Gas-using equipment. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Combination Figure 1 as well as Figure 2 As shown, a marine engine gas bellows assembly includes an inner bellows 3 and an outer bellows 4. The outer bellows 4 is sleeved outside the inner bellows 3. One end of both the inner bellows 3 and the outer bellows 4 is fixedly connected to a flange 5, and the other end is fixedly connected to a flange 6. The inner bellows 3 has an inner cavity 1, and an outer cavity 2 is formed between the inner bellows 3 and the outer bellows 4. The inner cavity 1 and the outer cavity 2 are completely isolated.

[0024] Marine engine gas bellows assemblies also include venting structures for releasing leaked gases.

[0025] Preferably, the venting structure includes a flange venting hole 51 disposed on the flange 5, and the flange venting hole 51 is connected to the outer cavity 2.

[0026] More preferably, the venting structure also includes a flange second venting hole 61 provided on the flange second 6, and the flange second venting hole 61 is connected to the outer cavity 2.

[0027] Preferably, the flange vent hole 51 is inclined.

[0028] Preferably, the second vent hole 61 of the flange is inclined.

[0029] More preferably, the flange has six vent holes 51 evenly distributed in a ring.

[0030] More preferably, the flange has six vent holes 61 evenly distributed in a ring.

[0031] Preferably, an inner sealing ring A7 and an outer sealing ring A8 are provided on flange 5, and the flange vent 51 is located between the inner sealing ring A7 and the outer sealing ring A8.

[0032] Preferably, flange 2 6 is further provided with an inner sealing ring B 9 and an outer sealing ring B10, and the vent hole 61 of flange 2 is located between the inner sealing ring B 9 and the outer sealing ring B10.

[0033] Flange 1 5 is provided with flange 1 mounting hole 52, and flange 2 6 is provided with flange 2 mounting hole 62.

[0034] The following is a detailed description of how the marine engine gas bellows assembly of this utility model effectively prevents gas leakage and explosion:

[0035] Combination Figure 1 , Figure 2 as well as Figure 3 As shown, the intake pipe 12 is connected to the air source 11. At the same time, on the intake side, the intake pipe 12 is connected to the inner cavity 1 of the inner corrugated pipe 3. On the exhaust side, the exhaust pipe 15 is connected to the inner cavity 1 of the inner corrugated pipe 3. At the same time, the exhaust pipe 15 is also connected to the air-using equipment 19 (here referring to the marine engine).

[0036] An intake side protective pipe 13 is provided on the outside of the intake pipe 12. An intake side cavity is formed between the intake side protective pipe 13 and the intake pipe 12. The intake side cavity is connected to the outer cavity 2 through a flange vent hole 51.

[0037] An exhaust side protective pipe 16 is provided on the outside of the exhaust pipe 15. An exhaust side cavity is formed between the exhaust side protective pipe 16 and the exhaust pipe 15. The exhaust side cavity is connected to the outer cavity 2 through the flange second vent hole 61.

[0038] An intake-side exhaust branch pipe 14 is also provided on the intake side. The intake-side exhaust branch pipe 14 is connected to the intake-side protective pipe 13. At the same time, the intake-side exhaust branch pipe 14 is also connected to the exhaust main pipe 18.

[0039] An exhaust branch pipe 17 is also provided on the exhaust side, which is connected to the exhaust side protective pipe 16. At the same time, the exhaust branch pipe 17 is also connected to the exhaust main pipe 18.

[0040] The outlet of the exhaust manifold 18 is located on the outside of the ship.

[0041] If gas leakage occurs due to a rupture in the inner bellows 3 of the marine engine gas bellows assembly of this utility model, the leaked gas enters the outer cavity 2 from the inner cavity 1, and then enters the intake side protective pipe 13 through the flange first vent hole 51. It then flows into the exhaust main pipe 18 through the intake side exhaust branch pipe 14, and simultaneously enters the exhaust side protective pipe 16 through the flange second vent hole 61. It then flows into the exhaust main pipe 18 through the exhaust side exhaust branch pipe 17, and finally is discharged to the outside of the ship through the exhaust main pipe 18. This effectively prevents explosions caused by gas leakage and ensures the safety of the ship.

[0042] The technical features with serial numbers mentioned in this manual (Flange 1, Flange 1 vent hole, Flange 1 mounting hole, Flange 2, Flange 2 vent hole, Flange 2 mounting hole, Inner sealing ring A, Outer sealing ring A, Inner sealing ring B, Outer sealing ring B, etc.) are only for distinguishing the technical features and do not represent the positional relationship, installation sequence, or working sequence of the technical features.

[0043] In this specification, it should be noted that the orientations or positional relationships described by terms such as "inner cavity," "outer cavity," "inner bellows," "outer bellows," "inner sealing ring A," "outer sealing ring A," "inner sealing ring B," and "outer sealing ring B" are based on the orientations or positional relationships shown in the accompanying drawings. They are used merely for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] While specific embodiments of this utility model have been described above, those skilled in the art should understand that the described embodiments are merely some, not all, embodiments of this utility model. These are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model and without any inventive effort, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A marine engine gas bellows assembly, characterized in that, The assembly includes an inner bellows and an outer bellows. The outer bellows is sleeved on the outside of the inner bellows. One end of the inner bellows and the outer bellows are fixedly connected to a flange, and the other end of the inner bellows and the outer bellows are fixedly connected to a flange. The inner bellows has an inner cavity, and an outer cavity is formed between the inner bellows and the outer bellows. The marine engine gas bellows assembly also includes a venting structure for releasing leaked gas.

2. The marine engine gas bellows assembly as described in claim 1, characterized in that, The venting structure includes a flange vent hole disposed on the flange and the flange vent hole is connected to the outer cavity.

3. The marine engine gas bellows assembly as described in claim 2, characterized in that, The venting structure also includes a flange second vent hole provided on the flange second, and the flange second vent hole is connected to the outer cavity.

4. The marine engine gas bellows assembly as described in claim 2, characterized in that, The flange has an inclined vent hole.

5. The marine engine gas bellows assembly as described in claim 3, characterized in that, The two vent holes of the flange are set at an angle.

6. The marine engine gas bellows assembly as described in claim 2, characterized in that, The flange has six vent holes evenly distributed in a ring.

7. The marine engine gas bellows assembly as described in claim 3, characterized in that, The flange has six vent holes evenly distributed in a ring.

8. The marine engine gas bellows assembly as described in claim 2, characterized in that, The flange is provided with an inner sealing ring A and an outer sealing ring A, and the vent hole of the flange is located between the inner sealing ring A and the outer sealing ring A.

9. The marine engine gas bellows assembly as described in claim 3, characterized in that, The flange 2 is also provided with an inner sealing ring B and an outer sealing ring B, and the vent hole of the flange 2 is located between the inner sealing ring B and the outer sealing ring B.

10. The marine engine gas bellows assembly as described in claim 1, characterized in that, The first flange is provided with a first flange mounting hole, and the second flange is provided with a second flange mounting hole.

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