Marine CO2 pipe sealing device

Abstract

The utility model relates to a marine CO2 pipe sealing device which comprises a CO2 pipe penetrating through a watertight bulkhead, and the two ends of the CO2 pipe are each connected with a sealing device. The sealing device comprises a shell with a conical head, and a movable part capable of axially moving along the inner wall of the shell is arranged in the shell. The head of the movable part is provided with conical sealing rubber, the tail end of the sealing rubber is connected with the water passing supporting part, and the tail end of the water passing supporting part is connected with the buoyancy body. The buoyancy body is in a hollow column shape with a center hole and is placed on a tray fixedly arranged on the inner wall of the shell. And gaps among the central hole, the water passing support part, the sealing rubber and the conical inner wall of the shell are communicated to form a channel through which water flows. According to the invention, the CO2 pipe is kept smooth at any time in a normal state, and when a ship is damaged and water enters a certain cabin, seawater does not flow to an adjacent cabin connected through the CO2 pipe through the CO2 pipe in the cabin, so that the watertight characteristic of the cabin wall penetrated by the CO2 pipe is kept.

Description

Technical Field

[0001] The present invention relates to a marine CO 2 pipe sealing device, belonging to the technical field of shipbuilding. Background Art

[0002] The carbon dioxide pipes on ships are usually related to the ship's fire protection system. On some ships, the carbon dioxide (CO2) fire extinguishing system is used as a fire extinguishing means, especially in engine rooms, cargo holds and other enclosed spaces. This system can quickly release a large amount of carbon dioxide during a fire, extinguish the flame by reducing the oxygen concentration, because carbon dioxide does not support combustion.

[0003] When the CO2 pipe passes through the watertight bulkhead, it will damage the watertight property of the penetrated bulkhead, which may affect the ship's damage stability. When the ship is damaged and a certain compartment is flooded, seawater will flow through the CO2 pipe in that compartment to the adjacent compartment connected by the CO2 pipe, thus having an adverse impact on the watertight property of the ship. Summary of the Invention

[0004] The purpose of the present invention is to provide a marine CO 2 pipe sealing device to solve the technical problem of how to ensure that the CO 2 pipe remains unobstructed at all times under normal conditions, and when the ship is damaged and a certain compartment is flooded, seawater will not flow through the CO 2 pipe in that compartment to the adjacent compartment connected by the CO 2 pipe, and maintain the watertight property of the bulkhead penetrated by the CO 2 pipe.

[0005] The present invention adopts the following technical solutions:

[0006] A marine CO 2 pipe sealing device includes a CO 2 pipe passing through the watertight bulkhead 1, and sealing devices are connected to both ends of the CO 2 pipe; one side of the sealing device is connected to the CO 2 inlet pipeline, and the other side of the sealing device is connected to the CO 2 outlet pipeline; the sealing device includes a housing with a conical head, and a movable component is arranged inside the housing and can move axially along the inner wall of the housing; the head of the movable component has a conical sealing rubber 3, the tail end of the sealing rubber is connected to a water-passing support component, and the tail end of the water-passing support component is connected to a buoyancy body 4; the buoyancy body 4 is in the shape of a hollow column with a central hole and is placed on a tray 5 fixedly arranged on the inner wall of the housing; the central hole, the water-passing support component, and the gap between the sealing rubber and the conical inner wall of the housing are communicated to form a channel for water flow.

[0007] Principle: A combination of a buoyancy body and a sealing rubber is used inside the tightness device. When one side is damaged and water enters, the sealing rubber can seal the tightness device. In a non-damaged state, due to the gravitational action of the buoyancy body and the sealing rubber, the pipeline will not be sealed, ensuring that the CO 2 pipe is unobstructed.

[0008] Preferably, the tail ends of the CO 2 inlet pipeline and the CO 2 outlet pipeline are also connected to a drain pipe 7, and the tail end of the drain pipe 7 is provided with a sealing bolt 8 or a valve.

[0009] Furthermore, the drain pipe 7 is oriented vertically downward.

[0010] Preferably, the buoyancy body 4 is in a cylindrical shape.

[0011] Furthermore, the wall thickness of the buoyancy body 4 is greater than the radius of its central hole and less than the diameter of the central hole.

[0012] Preferably, the water support components are connected to several rods arranged uniformly in the circumferential direction.

[0013] Furthermore, the number of the rods is 4, and the angular interval is 90 degrees.

[0014] Preferably, the CO 2 pipe is hermetically connected to the round hole on the watertight bulkhead 1.

[0015] Furthermore, the outside of the overall marine CO 2 pipe sealing device has a structural shell 9.

[0016] Even further, the sealing bolt 8 or the valve extends downward and is connected to the structural shell 9.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1) The structure is simple, the implementation is convenient, and the design is ingenious. It does not affect the normal use of the CO 2 pipe, and can prevent the CO 2 pipe from bringing adverse effects to the damaged cabin;

[0019] 2) It can be conveniently installed on the basis of the existing structure, and the installation cost is relatively low;

[0020] 3) Even if the CO 2 pipe bursts and water enters and the seal is activated, it can be reused repeatedly after recovery. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the marine CO 2 pipe sealing device of the present utility model.

[0022] Figure 2 is Figure 1 the sectional view A in

[0023] Figure 3 is Figure 1 the sectional view B in

[0024] In the figure, 1 - watertight bulkhead, 2 - CO 2 pipe, 3 - sealing rubber, 4 - buoyancy body, 5 - tray, 6 - cavity, 7 - drain pipe, 8 - sealing bolt, 9 - structural housing. Specific embodiments

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1-3 , a marine CO 2 pipe sealing device, including a CO 2 pipe passing through the watertight bulkhead 1, and a sealing device is connected to each end of the CO 2 pipe; the sealing device on one side is connected to the CO 2 inlet pipeline, and the sealing device on the other side is connected to the CO 2 outlet pipeline; the sealing device includes a housing with a conical head, and a movable part that can move axially along the inner wall of the housing is arranged inside the housing; the head of the movable part has a sealing rubber 3 with a conical shape, the tail end of the sealing rubber is connected to a water-passing support part, and the tail end of the water-passing support part is connected to a buoyancy body 4; the buoyancy body 4 is in the shape of a hollow column with a central hole and is placed on a tray 5 fixedly arranged on the inner wall of the housing; the gap between the central hole, the water-passing support part, the sealing rubber and the conical inner wall of the housing is communicated to form a channel for water flow.

[0027] Principle: The combination of buoyancy 4 and sealing rubber 3 is used in the sealing device, so that when one side is damaged and water enters, the sealing rubber 3 can seal the sealing device, and in the non-damaged state, due to the gravity of the buoyancy body 4 and the sealing rubber 3, the pipeline will not be sealed, ensuring that the CO 2 pipe is unobstructed.

[0028] In this embodiment, see Figure 1 , the tail ends of the CO 2 inlet pipeline and the CO 2 outlet pipeline are also connected to the drain pipe 7, and a sealing bolt 8 or a valve is arranged at the tail end of the drain pipe 7.

[0029] In this embodiment, see Figure 1 , the drain pipe 7 is vertically downward.

[0030] In this embodiment, see Figures 2-3, the buoyancy body 4 is in a cylindrical shape.

[0031] Furthermore, referring to Figure 3 , the wall thickness of the buoyancy body 4 is greater than the radius of its central hole and less than the diameter of the central hole.

[0032] In this embodiment, referring to Figure 2 and combining with Figure 1 , the water support member is connected to a plurality of rods arranged uniformly in the circumferential direction. The number of rods is 4, and the interval angle is 90 degrees.

[0033] In this embodiment, the CO 2 pipe is hermetically connected to the round hole on the watertight bulkhead 1.

[0034] In this embodiment, referring to Figure 1 , the external part of the marine CO 2 pipe sealing device has a structural housing 9 as a whole.

[0035] Furthermore, continue to refer to Figure 1 , the sealing bolt 8 or the valve extends downward and is connected to the structural housing 9.

[0036] The following points need to be emphasized:

[0037] The sealing body of the sealing device that plays a sealing role: locally uses a thickened and tapered CO 2 pipe, as well as a matching buoyancy body and a sealing rubber in the shape of a cone.

[0038] The buoyancy body in the sealing device is in a hollow form and is placed on a tray. There is a cavity under the tray to ensure the smoothness of the CO 2 pipe in a non-damaged state.

[0039] CO 2 pipes each have a sealing device on both sides of the bulkhead they penetrate.

[0040] A manual drain hole is provided below the sealing device. After the damage is over, the water is drained through the drain bolt to ensure the smoothness of the CO 2 pipe.

[0041] For the CO 2 pipe passing through the watertight bulkhead, it is necessary to always ensure smoothness to ensure the fire protection function, but at the same time, it will damage the watertightness of the bulkhead. In this embodiment, when one of the cabins is damaged, water enters the sealing device through the CO 2 pipe. Due to the buoyancy effect, the buoyancy body (hollow form) pushes the sealing rubber 3 to seal the upper CO 2Sealing is provided, and the pressure at the sealing point changes with the change of the water head. The greater the water head, the greater the pressure. Also, because the pressure of the sealing rubber = water head / bottom area of the sealing rubber + buoyancy provided by the buoyancy body - self-gravity of the buoyancy body and the sealing rubber. At the same time, the buoyancy provided by the buoyancy body > self-gravity of the buoyancy body and the sealing rubber. Therefore, the pressure provided by the sealing rubber is greater than the pressure of the water head here, and seawater will not flow through the CO 2 to another compartment. When neither of the two compartments on both sides is damaged, there is no seawater in the CO 2 pipe. Due to the gravitational action of the buoyancy body and the sealing rubber, it is located on the bottom tray. And because there is a cavity under the tray, the buoyancy body will not block the CO 2 pipe, and the CO 2 pipe remains unblocked, and the CO 2 can pass through the CO 2 pipe from one compartment to another. After the damage is over, the water can be drained through the drain bolt to ensure that the CO 2 pipe is unblocked.

[0042] The present invention solves the problem of how to ensure that the CO 2 pipe remains unblocked at all times under normal conditions, and when the ship is damaged and a certain compartment is flooded, seawater will not flow through the CO 2 pipe in this compartment to the adjacent compartment connected by the CO 2 pipe, and maintain the watertight property of the bulkhead through which the CO 2 pipe passes.

[0043] The above are the preferred embodiments of the present invention. Those of ordinary skill in the art can also make various transformations or improvements on this basis. Without departing from the general concept of the present invention, these transformations or improvements should all fall within the scope of protection required by the present invention.

Claims

1. A marine CO2 pipe sealing device, characterized in that: It comprises a CO2 pipe passing through a watertight bulkhead (1), with a sealing device connected to each end of the CO2 pipe; the sealing device on one side is connected to a CO2 inlet pipeline, and the sealing device on the other side is connected to a CO2 outlet pipeline; The sealing device comprises a shell with a conical head, and a movable part which can move axially along the inner wall of the shell is arranged in the shell; The head of the movable component has a conical sealing rubber (3), the tail end of the sealing rubber is connected to the water-passing support component, and the tail end of the water-passing support component is connected to the buoyancy body (4); the buoyancy body (4) is in the shape of a hollow column with a central hole, and is placed on a tray (5) fixedly arranged on the inner wall of the shell; The central hole, the water-passing support component, the sealing rubber and the gaps between the conical inner wall of the shell are connected to form a channel for water to flow through.

2. The marine CO2 pipe sealing device according to claim 1, characterized in that: The tail ends of the CO2 inlet pipeline and the CO2 outlet pipeline are also connected to a drain pipe (7), and a sealing bolt (8) or a valve is provided at the tail end of the drain pipe (7).

3. The marine CO2 pipe sealing device according to claim 2, characterized in that: The drainage pipe (7) is oriented vertically downward.

4. The marine CO2 pipe sealing device according to claim 1, characterized in that: The buoyancy body (4) is in a cylindrical shape.

5. The marine CO2 pipe sealing device according to claim 4, characterized in that: The wall thickness of the buoyancy body (4) is greater than the radius of its central hole and smaller than the diameter of the central hole.

6. The marine CO2 pipe sealing device according to claim 1, characterized in that: The water support component is connected to a plurality of rods evenly arranged in a circumferential direction, wherein the number of the rods is 4 and the angle between the rods is 90 degrees.

7. The marine CO2 pipe sealing device according to claim 1, characterized in that: The CO2 pipe is sealedly connected to the circular hole on the watertight bulkhead (1).

8. The marine CO2 pipe sealing device according to claim 1 or 2, characterized in that: The entire exterior of the marine CO2 pipe sealing device is provided with a structural shell (9).

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