Anti-explosion pressure relief system for ship cabin and control method of anti-explosion pressure relief system

Abstract

The invention relates to the technical field of ship engineering, and discloses an anti-explosion pressure relief system for a ship cabin and a control method thereof.The cabin comprises a wall plate provided with a relief opening, and the anti-explosion pressure relief system comprises a sealing gasket annularly arranged on the portion, on the periphery of the relief opening, of the wall plate; the sealing plate abuts against the outer side end of the sealing gasket; the pressing assembly comprises a gas cylinder, a cylinder, a pressure release valve, a first electromagnetic valve and a second electromagnetic valve, the end of a piston rod of the cylinder abuts against the outer side end of the sealing plate, the pressure release valve is arranged in a rodless cavity of the cylinder, the gas cylinder communicates with the rodless cavity of the cylinder through a first pipeline, the gas cylinder communicates with the cabin through a second pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline. The second electromagnetic valve is arranged on the second pipeline, and inert gas is contained in the gas cylinder; and the control assembly is electrically connected with the pressure release valve, the first electromagnetic valve and the second electromagnetic valve. According to the anti-explosion pressure relief system for the ship cabin and the control method of the anti-explosion pressure relief system, the pressure in the cabin can be kept stable, and the problem of fire disasters can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship engineering, and in particular to an explosion-proof pressure relief system for a ship cabin and a control method thereof. Background Art

[0002] The explosion-proof pressure relief system of ship cabins is one of the key technologies to ensure the safe and reliable operation of ships. In some specific cases, the cabin may generate excessive pressure due to fire, equipment failure, gas leakage or pressure difference between the inside and outside of the cabin. In order to avoid cabin rupture or other safety accidents due to excessive pressure, an effective pressure relief system is needed to release the excessive pressure in time to ensure the structural safety of the cabin and the safety of the crew.

[0003] Existing explosion-proof pressure relief systems usually use traditional mechanical structures or pressure relief valves to release the pressure in the cabin. For example, common technologies include controlling the pressure relief valve switch through spring action or pneumatic system, and automatically releasing gas when the pressure in the cabin reaches the set value. If a fire occurs inside the cabin, these traditional systems cannot handle the fire problem in time, resulting in the equipment inside the cabin being easily burned, and the subsequent ship restoration project is long and costly. Summary of the invention

[0004] The purpose of the present invention is to provide an explosion-proof pressure relief system for a ship cabin and a control method thereof, which can not only maintain the pressure in the cabin stable, but also respond to fire problems in a timely manner and reduce damage to equipment in the cabin.

[0005] In order to achieve the above-mentioned object, the present invention provides an explosion-proof pressure relief system for a ship cabin and a control method thereof, wherein the cabin comprises a wall panel, and a relief port is provided on the wall panel;

[0006] In a first aspect of the present invention, the explosion-proof pressure relief system for a ship cabin comprises:

[0007] A sealing gasket, which is arranged outside the discharge port and is arranged around the wall plate at the outer periphery of the discharge port;

[0008] A sealing plate, the sealing plate abutting against an outer end of the sealing gasket;

[0009] A clamping assembly, the clamping assembly comprising a gas cylinder, a gas cylinder, a pressure relief valve, a first solenoid valve, and a second solenoid valve, the gas cylinder being arranged outside the discharge port, the piston rod end of the gas cylinder being in contact with the outer end of the sealing plate, the pressure relief valve being arranged at the rodless cavity of the gas cylinder, the gas cylinder being connected to the rodless cavity of the gas cylinder via a first pipeline, the gas cylinder being connected to the cabin via a second pipeline, the first solenoid valve being arranged on the first pipeline, the second solenoid valve being arranged on the second pipeline, and the gas cylinder containing an inert gas;

[0010] A control component is electrically connected to the pressure relief valve, the first solenoid valve, and the second solenoid valve.

[0011] Furthermore, a slot is provided at the inner end of the sealing plate, and the outer end of the sealing gasket is shaped to be accommodated in the slot.

[0012] Furthermore, the explosion-proof pressure relief system for ship cabins also includes a limit spring, and both ends of the limit spring are respectively arranged on the outer end of the sealing plate and the cylinder, and the limit spring maintains a stretched state.

[0013] Furthermore, a first safety valve is provided on the sealing plate, a second safety valve is provided at the rodless chamber of the cylinder, and the control component is electrically connected to the first safety valve and the second safety valve.

[0014] Furthermore, the explosion-proof pressure relief system for the ship cabin also includes a first pressure sensor, a second pressure sensor, a third pressure sensor, a displacement sensor and an alarm module, the first pressure sensor is arranged at the gas output end of the gas cylinder, the second pressure sensor is arranged in the rodless cavity of the cylinder, the third pressure sensor is arranged in the cabin, the displacement sensor is arranged on the sealing plate, the first pressure sensor, the second pressure sensor, the third pressure sensor, and the displacement sensor are all electrically connected to the control component, and the alarm module is electrically connected to the control component.

[0015] In a second aspect of the present invention, the control method for controlling the explosion-proof pressure relief system for a ship cabin comprises:

[0016] A compressed state, when the explosion-proof pressure relief system for a ship cabin is in the compressed state, the piston rod of the cylinder pushes the sealing plate to abut against the sealing gasket and maintains the pressure of the cylinder;

[0017] Standby state: when the explosion-proof pressure relief system for ship cabins is in the standby state, the values ​​of the first pressure sensor, the second pressure sensor, the third pressure sensor and the displacement sensor are monitored in real time by the control component, and an alarm is triggered if the values ​​are different from the preset values;

[0018] A pressure relief state, when the explosion-proof pressure relief system for a ship cabin is in the pressure relief state, the piston rod of the cylinder is separated from the contact with the sealing plate, and the pressure in the cabin is released from between the relief port and the sealing plate;

[0019] In the fire-fighting state, when the explosion-proof pressure relief system for the ship's cabin is in the fire-fighting state, the piston rod of the cylinder is disengaged from the abutment against the sealing plate, the pressure in the cabin is released from between the discharge port and the sealing plate, and inert gas is input into the cabin through the gas cylinder.

[0020] Furthermore, when the explosion-proof pressure relief system for ship cabins is in the compression state, when the value monitored by the second pressure sensor is less than a preset value, the first solenoid valve is opened, the second solenoid valve is closed, the pressure relief valve is closed, and the gas in the gas cylinder is passed into the rodless chamber of the cylinder, and the piston rod of the cylinder presses the sealing plate onto the sealing gasket. When the displacement sensor monitors the displacement signal of the sealing plate and the second sensor monitors that its value is equal to the preset value, the control component determines that the sealing plate has been compressed and closes the first solenoid valve. When the value monitored by the second pressure sensor is greater than the preset value, the second safety valve is opened until the value monitored by the second pressure sensor returns to the preset value, at which time the second safety valve is closed, and the explosion-proof pressure relief system for ship cabins is switched from the compression state to the standby state.

[0021] Furthermore, when the explosion-proof pressure relief system for ship cabins is in the standby state, the first solenoid valve, the second solenoid valve and the pressure relief valve are all closed, and when the value of the first sensor is lower than a preset value, the alarm module determines that the pressure in the gas cylinder is insufficient and issues an alarm; when the value of the second sensor is lower than a preset value, the alarm module determines that the sealing pressure of the sealing plate is insufficient and issues an alarm; when the value of the third sensor is greater than a preset value, and a displacement signal appears in the displacement sensor at the same time, the alarm module determines that the sealing plate is loose and issues an alarm, at this time, the first safety valve opens to relieve pressure, and if the value of the third sensor does not return to the preset value within the preset time, the explosion-proof pressure relief system for ship cabins switches from the standby state to the pressure relief state.

[0022] Furthermore, when the explosion-proof pressure relief system for a ship cabin is in the pressure relief state, the first solenoid valve is closed, the second solenoid valve is closed, the pressure relief valve is opened, and the gas in the rodless chamber of the cylinder is released into the atmosphere from the pressure relief valve.

[0023] Furthermore, when the control component receives a fire signal and the explosion-proof pressure relief system of the ship cabin is switched to the fire-fighting state, the first solenoid valve is closed, the second solenoid valve is opened, the pressure relief valve is opened, and the gas in the gas cylinder is passed into the cabin through the second pipeline.

[0024] Compared with the prior art, the explosion-proof pressure relief system and control method for a ship cabin of an embodiment of the present invention have the following beneficial effects: a second pipeline is connected between the gas cylinder and the cabin, a second solenoid valve is arranged on the second pipeline, an inert gas is contained inside the gas cylinder, and when a fire occurs inside the cabin, the second solenoid valve can be opened to allow the inert gas in the gas cylinder to be introduced into the cabin through the second pipeline. The inert gas can reduce the oxygen content in the cabin to extinguish the fire, thereby timely protecting the equipment inside the cabin and reducing damage to the equipment in the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a circuit diagram of an explosion-proof pressure relief system for a ship cabin according to an embodiment of the present invention;

[0026] Figure 2 is a flow chart of a control method for an explosion-proof pressure relief system for a ship cabin according to an embodiment of the present invention;

[0027] In the figure, 1, cabin; 101, wall panel; 1011, discharge port;

[0028] 2. Sealing gasket;

[0029] 3. Sealing plate; 301. Card slot;

[0030] 4. Compression assembly; 401. Gas cylinder; 402. Gas cylinder; 403. Pressure relief valve; 404. First solenoid valve; 405. Second solenoid valve; 406. First pipeline; 407. Second pipeline;

[0031] 5. Control components;

[0032] 6. Limit spring;

[0033] 7. First safety valve;

[0034] 8. Second safety valve;

[0035] 9. A first pressure sensor;

[0036] 10. A second pressure sensor;

[0037] 11. A third pressure sensor;

[0038] 12. Displacement sensor. DETAILED DESCRIPTION

[0039] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal" and the like used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only used to facilitate the description of the present invention and simplify the description, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0041] In the description of the present invention, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0043] The technical solution of the present invention is further described below in conjunction with embodiments and drawings.

[0044] like Figure 1 As shown, an explosion-proof pressure relief system for a ship cabin and a control method thereof according to an embodiment of the present invention, the cabin 1 includes a wall panel 101, and a relief port 1011 is opened on the wall panel 101;

[0045] In a first aspect of an embodiment of the present invention, an explosion-proof pressure relief system for a ship cabin includes:

[0046] The sealing gasket 2 is arranged outside the discharge port 1011 and is arranged on the wall plate 101 around the discharge port 1011;

[0047] A sealing plate 3, the sealing plate 3 abuts against the outer end of the sealing gasket 2;

[0048] The clamping assembly 4 includes a gas cylinder 401, a gas cylinder 402, a pressure relief valve 403, a first solenoid valve 404, and a second solenoid valve 405. The gas cylinder 402 is arranged on the outside of the discharge port 1011, and the piston rod end of the gas cylinder 402 abuts against the outer end of the sealing plate 3. The pressure relief valve 403 is arranged at the rodless cavity of the gas cylinder 402. The gas cylinder 401 and the rodless cavity of the gas cylinder 402 are connected by a first pipeline 406. The gas cylinder 401 and the cabin 1 are connected by a second pipeline 407. The first solenoid valve 404 is arranged on the first pipeline 406, and the second solenoid valve 405 is arranged on the second pipeline 407. The gas cylinder 401 contains an inert gas.

[0049] The control component 5 is electrically connected to the pressure relief valve 403 , the first solenoid valve 404 , the second solenoid valve 405 , and the pressure relief valve 403 .

[0050] Based on the above technical solution, the gas cylinder 401 is connected to the cabin 1 via a second pipeline 407, and the second solenoid valve 405 is arranged on the second pipeline 407. The gas cylinder 401 contains inert gas. When a fire occurs inside the cabin 1, the second solenoid valve 405 can be opened to allow the inert gas in the gas cylinder 401 to be passed into the cabin 1 through the second pipeline 407. The inert gas can reduce the oxygen content in the cabin 1 to extinguish the fire, thereby protecting the equipment inside the cabin 1 in time and reducing the damage to the equipment in the cabin 1.

[0051] Preferably, a groove 301 is provided at the inner end of the sealing plate 3, and the outer end of the sealing gasket 2 is shaped to fit in the groove 301. The sealing gasket 2 and the sealing plate 3 are fixed by the groove 301, ensuring that the sealing gasket 2 will not be displaced or loosened during the sealing process, effectively improving the sealing performance and preventing gas leakage.

[0052] Preferably, the explosion-proof pressure relief system for ship cabins also includes a limit spring 6, the two ends of which are respectively arranged on the outer end of the sealing plate 3 and the cylinder 402, and the limit spring 6 remains in a stretched state. The limit spring 6 can effectively control the moving position of the sealing plate 3 to prevent the sealing plate 3 and the sealing gasket 2 from being offset during the sealing and tightening process; when the pressure in the cabin 1 is too high, the piston rod of the cylinder 402 will push the sealing plate 3 to open to release gas and reduce air pressure. Since the limit spring 6 remains in a stretched state, it provides a predetermined elastic force to control the opening position and strength of the sealing plate 3, thereby effectively controlling the pressure relief process and preventing the sealing plate 3 from being damaged or unstable due to excessive or violent movement during pressure relief.

[0053] Preferably, a first safety valve 7 is provided on the sealing plate 3 , a second safety valve 8 is provided at the rodless chamber of the cylinder 402 , and the control component 5 is electrically connected to the first safety valve 7 and the second safety valve 8 .

[0054] Specifically, the first safety valve 7 and the second safety valve 8 are mechanical structures. When the air pressure is greater than a preset value, the first safety valve 7 and the second safety valve 8 can open to release pressure. When the air pressure is less than or equal to the preset value, the first safety valve 7 and the second safety valve 8 automatically close.

[0055] The mechanical structure of the first safety valve 7 and the second safety valve 8 ensures the automation and reliability of the pressure relief process. When the air pressure in the cabin 1 or the cylinder 402 exceeds the set value, the first safety valve 7 or the second safety valve 8 will automatically open to release the excess air pressure in time. When the air pressure returns to a safe range, the first safety valve 7 or the second safety valve 8 will automatically close, avoiding excessive pressure relief, enabling precise air pressure control, reducing resource waste or gas leakage caused by excessive pressure relief, maintaining the stability of the air pressure in the cabin 1 or the cylinder 402, and effectively preventing excessive air pressure from damaging the internal equipment of the cabin 1 or the sealing plate 3. This design does not rely on electrical or other complex electronic control systems and can automatically perform pressure maintenance operations.

[0056] Preferably, the explosion-proof pressure relief system for a ship cabin also includes a first pressure sensor 9, a second pressure sensor 10, a third pressure sensor 11, a displacement sensor 12 and an alarm module. The first pressure sensor 9 is arranged at the gas output end of the gas cylinder 401, the second pressure sensor 10 is arranged in the rodless cavity of the cylinder 402, the third pressure sensor 11 is arranged in the cabin 1, and the displacement sensor 12 is arranged on the sealing plate 3. The first pressure sensor 9, the second pressure sensor 10, the third pressure sensor 11, and the displacement sensor 12 are all electrically connected to the control component 5, and the alarm module is electrically connected to the control component 5 (the alarm module is not shown in the drawings in the specification).

[0057] The first pressure sensor 9 can monitor the gas pressure of the gas cylinder 401 in real time, the second pressure sensor 10 monitors the pressure inside the cylinder 402, and the third pressure sensor 11 monitors the pressure inside the cabin 1. Through the combination of these three, the system can accurately grasp the various pressure data in the entire explosion-proof pressure relief process to ensure that the system operates according to the preset working state. The displacement sensor 12 monitors the position of the sealing plate 3 to ensure that the opening and closing action of the sealing plate 3 meets the requirements, and timely feedbacks the actual position of the sealing plate 3 to avoid the failure of pressure relief due to the wrong position of the sealing plate 3.

[0058] In a second aspect of the embodiment of the present invention, Figure 2 As shown, a control method for controlling an explosion-proof pressure relief system for a ship cabin includes:

[0059] In the compressed state, when the explosion-proof pressure relief system for ship cabins is in the compressed state, the piston rod of the cylinder 402 pushes the sealing plate 3 to abut against the sealing gasket 2 and maintains the pressure of the cylinder 402;

[0060] In standby mode, when the explosion-proof pressure relief system for ship cabins is in standby mode, the values ​​of the first pressure sensor 9, the second pressure sensor 10, the third pressure sensor 11 and the displacement sensor 12 are monitored in real time through the control component 5, and an alarm is triggered if the values ​​are different from the preset values;

[0061] Pressure relief state: when the explosion-proof pressure relief system for ship cabins is in the pressure relief state, the piston rod of the cylinder 402 is separated from the contact with the sealing plate 3, and the pressure in the cabin 1 is released from between the relief port 1011 and the sealing plate 3;

[0062] In the fire-fighting state, when the explosion-proof pressure relief system for the ship's cabin is in the fire-fighting state, the piston rod of the cylinder 402 disengages from the abutment against the sealing plate 3, the pressure in the cabin 1 is released from between the discharge port 1011 and the sealing plate 3, and inert gas is input into the cabin 1 through the gas cylinder 401.

[0063] Based on the above technical solution, in the compressed state, the piston rod of the cylinder 402 pushes the sealing plate 3 to be in close contact with the sealing gasket 2, and maintains the pressure of the cylinder 402 to ensure that the discharge port 1011 always remains sealed. By continuously maintaining the pressure of the cylinder 402, a good seal is maintained between the sealing plate 3 and the sealing gasket 2 to prevent gas leakage or pressure changes when pressure relief is not required, thereby ensuring the normal operation of the system; in the standby state, the system monitors the data of the first pressure sensor 9, the second pressure sensor 10, the third pressure sensor 11 and the displacement sensor 12 in real time through the control component 5, and compares them with the preset values. If the value deviates from the preset value, the system will issue an alarm. The real-time monitoring and early warning mechanism improves the system's responsiveness and can detect pressure changes or equipment abnormalities in a timely manner, avoiding safety hazards caused by air pressure loss, sensor failure, or position deviation of the sealing plate 3. In the pressure relief state, the piston rod of the cylinder 402 is separated from the sealing plate 3, and the sealing plate 3 and the sealing gasket 2 are separated from each other. The excessive pressure in the cabin 1 is quickly released through the discharge port 1011, ensuring that the system can release excessive gas through the precise control of the cylinder 402 when the pressure is too high, maintain the safe air pressure level of the cabin 1, and avoid damage to the equipment in the cabin 1. In the fire-fighting state, in addition to releasing the pressure in the cabin 1, the system injects inert gas into the cabin 1 through the gas cylinder 401, and uses inert gas (such as nitrogen) to reduce the oxygen content in the cabin 1, and quickly suppress the fire source in the cabin 1, thereby achieving a fire extinguishing effect and preventing the spread of fire.

[0064] More preferably, when the explosion-proof pressure relief system for ship cabins is in a compressed state, when the value monitored by the second pressure sensor 10 is less than a preset value, the first solenoid valve 404 is opened, the second solenoid valve 405 is closed, the pressure relief valve 403 is closed, and the gas in the gas cylinder 401 is passed into the rodless chamber of the cylinder 402, and the piston rod of the cylinder 402 presses the sealing plate 3 onto the sealing gasket 2. When the displacement sensor 12 monitors the displacement signal of the sealing plate 3 and the second sensor monitors that its value is equal to the preset value, the control component 5 determines that the sealing plate 3 has been compressed and closes the first solenoid valve 404. When the value monitored by the second pressure sensor 10 is greater than the preset value, the second safety valve 8 is opened until the value monitored by the second pressure sensor 10 returns to the preset value, and the second safety valve 8 is closed, and the explosion-proof pressure relief system for ship cabins is switched from the compressed state to the standby state. When the system is in a compressed state, when the air pressure in the cylinder 402 monitored by the second pressure sensor 10 is lower than a preset value, the first solenoid valve 404 is opened, the second solenoid valve 405 is closed, and the pressure relief valve 403 is closed, and the gas in the gas cylinder 401 enters the rodless chamber of the cylinder 402, pushing the piston rod to compress the sealing plate 3. The system can accurately adjust the pressure of the cylinder 402 in the compressed state to ensure that the sealing plate 3 is always in the correct position, effectively isolating the pressure inside and outside the cabin 1, and preventing leakage and unnecessary gas discharge; when the displacement sensor 12 monitors the displacement signal of the sealing plate 3 and reaches the preset value with the value of the second pressure sensor 10, the system determines that the sealing plate 3 has been successfully compressed, and the displacement signal and the pressure data The double verification of the value greatly enhances the reliability of the system, ensuring that the sealing plate 3 can achieve the clamping effect in a timely and accurate manner, thereby maintaining the sealing state of the cabin 1; after completing the clamping operation of the sealing plate 3, the system can judge that the pressure has recovered to the preset range based on the feedback of the pressure sensor and the displacement sensor 12, and automatically close the first solenoid valve 404, and then adjust the pressure in the cylinder 402 through the second safety valve 8 to ensure that the system is in a standby state; the system automatically transitions smoothly from the clamping state to the standby state, reducing the unstable factors caused by frequent switching or improper operation of the system, and enabling the system to switch to the standby state more stably and quickly, ready to respond to the next pressure relief demand or fire incident at any time.

[0065] More preferably, when the explosion-proof pressure relief system for ship cabins is in standby mode, the first solenoid valve 404, the second solenoid valve 405, and the pressure relief valve 403 are all closed. When the value of the first sensor is lower than the preset value, the alarm module determines that the pressure in the gas cylinder 401 is insufficient and issues an alarm; when the value of the second sensor is lower than the preset value, the alarm module determines that the sealing pressure of the sealing plate 3 is insufficient and issues an alarm; when the value of the third sensor is greater than the preset value, and a displacement signal appears in the displacement sensor 12 at the same time, the alarm module determines that the sealing plate 3 is loose and issues an alarm. At this time, the first safety valve 7 opens to relieve pressure. If the value of the third sensor does not return to the preset value within the preset time, the explosion-proof pressure relief system for ship cabins switches from the standby mode to the pressure relief mode. The system monitors the working status of the sealing plate 3, the gas cylinder 401 and the gas cylinder 402 respectively through the first pressure sensor 9, the second pressure sensor 10 and the third pressure sensor 11, and can automatically respond through the alarm module when an abnormality occurs. Through real-time monitoring and automatic alarm functions, the system can accurately maintain the stability of the standby state and promptly deal with any problems that may arise; the system can detect and alarm in real time through self-diagnosis capabilities, reduce the tediousness of manual detection, and improve maintenance efficiency. When an abnormality is detected, the alarm module can automatically determine the type of problem and give a clear warning, such as insufficient gas pressure in the gas cylinder 401, the sealing plate 402, the sealing plate 401, the sealing plate 402, the sealing plate 402 and the sealing plate 402. The plate 3 is poorly sealed or the sealing plate 3 is loose, etc. This provides the operator with a clear basis for handling and reduces the possibility of operating errors. The operator can promptly understand the specific problems of the equipment and take corresponding measures, thereby improving the maintenance efficiency of the equipment and extending the service life of the equipment; by comparing the preset time with the duration after the first safety valve 7 is opened, when the value of the third pressure sensor 11 fails to recover to the preset value within the specified time, the system automatically switches from the standby state to the pressure relief state, ensuring that the system will not be in an abnormal state for a long time, avoiding safety hazards or equipment damage in the cabin 1 due to failure to switch the state in time.

[0066] More preferably, when the explosion-proof pressure relief system for a ship cabin is in a pressure relief state, the first solenoid valve 404 is closed, the second solenoid valve 405 is closed, the pressure relief valve 403 is opened, and the gas in the rodless chamber of the cylinder 402 is released from the pressure relief valve 403 into the atmosphere.

[0067] Specifically, the value of the third pressure sensor 11 is approximately equal to the atmospheric pressure, that is, after the pressure relief state ends, the system needs to be manually reset. The operator must personally confirm and restore the system status after each pressure relief process is completed, which helps to ensure that the operator is clear about every step of the system and avoids unknown risks or mistakes after the system is automatically reset; the operator can check the overall condition of the system during the reset to ensure that there are no other potential faults or risks, providing additional safety protection and improving the maintenance efficiency of the system. The explosion-proof pressure relief system for ship cabins not only automatically handles emergencies during the pressure relief process, but also allows manual intervention for more precise control and maintenance.

[0068] More preferably, when the control component 5 receives a fire signal and the explosion-proof pressure relief system of the ship's cabin is switched to a fire-fighting state, the first solenoid valve 404 is closed, the second solenoid valve 405 is opened, the pressure relief valve 403 is opened, and the gas in the gas cylinder 401 is passed into the cabin 1 through the second pipeline 407.

[0069] Specifically, the firefighting state has a higher priority than the compression state, the standby state and the pressure relief state.

[0070] After receiving the fire signal, the system can automatically switch to the fire fighting state, the second solenoid valve 405 opens, the pressure relief valve 403 opens, and the inert gas in the gas cylinder 401 is introduced into the cabin 1 through the second pipeline 407, which quickly reduces the oxygen concentration in the cabin 1 and achieves the effect of extinguishing the fire. The automated response enables the system to take quick action at the early stage of a fire, reduce the spread of the fire and damage to the cabin 1, and significantly improve the efficiency of fire extinguishing.

[0071] In summary, an embodiment of the present invention provides an explosion-proof pressure relief system for a ship cabin and a control method thereof, wherein a gas cylinder 401 is connected to the cabin 1 via a second pipeline 407, a second solenoid valve 405 is arranged on the second pipeline 407, and an inert gas is contained inside the gas cylinder 401. When a fire occurs inside the cabin 1, the second solenoid valve 405 can be opened to allow the inert gas in the gas cylinder 401 to be passed into the cabin 1 through the second pipeline 407. The inert gas can reduce the oxygen content in the cabin 1 to extinguish the fire, thereby timely protecting the equipment inside the cabin 1 and reducing damage to the equipment in the cabin 1.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An explosion-proof pressure relief system for a ship cabin, the cabin (1) comprising a wall panel (101), the wall panel (101) being provided with a relief port (1011), characterized in that: include: a sealing gasket (2), the sealing gasket (2) being arranged outside the discharge port (1011) and being arranged in a ring on the wall plate (101) at the periphery of the discharge port (1011); A sealing plate (3), the sealing plate (3) being in contact with the outer end of the sealing gasket (2); A clamping assembly (4), the clamping assembly (4) comprising a gas cylinder (401), a gas cylinder (402), a pressure relief valve (403), a first solenoid valve (404), and a second solenoid valve (405), the gas cylinder (402) being arranged on the outside of the discharge port (1011), the piston rod end of the gas cylinder (402) being in contact with the outer end of the sealing plate (3), the pressure relief valve (403) being arranged at the rodless cavity of the gas cylinder (402), the gas cylinder (401) and the rodless cavity of the gas cylinder (402) being connected via a first pipeline (406), the gas cylinder (401) and the cabin (1) being connected via a second pipeline (407), the first solenoid valve (404) being arranged on the first pipeline (406), the second solenoid valve (405) being arranged on the second pipeline (407), and the gas cylinder (401) containing an inert gas; A control component (5), wherein the control component (5) is electrically connected to the pressure relief valve (403), the first solenoid valve (404), and the second solenoid valve (405).

2. The explosion-proof pressure relief system for ship cabins according to claim 1, characterized in that: The inner end of the sealing plate (3) is provided with a slot (301), and the outer end of the sealing gasket (2) is shaped to be accommodated in the slot (301).

3. The explosion-proof pressure relief system for ship cabins according to claim 1, characterized in that: It also includes a limit spring (6), the two ends of which are respectively arranged on the outer end of the sealing plate (3) and the cylinder (402), and the limit spring (6) is kept in a stretched state.

4. The explosion-proof pressure relief system for ship cabins according to claim 1, characterized in that: A first safety valve (7) is provided on the sealing plate (3), a second safety valve (8) is provided at the rodless chamber of the cylinder (402), and the control component (5) is electrically connected to the first safety valve (7) and the second safety valve (8).

5. The explosion-proof pressure relief system for ship cabins according to claim 1, characterized in that: It also includes a first pressure sensor (9), a second pressure sensor (10), a third pressure sensor (11), a displacement sensor (12) and an alarm module, wherein the first pressure sensor (9) is arranged at the gas output end of the gas cylinder (401), the second pressure sensor (10) is arranged in the rodless cavity of the cylinder (402), the third pressure sensor (11) is arranged in the cabin (1), and the displacement sensor (12) is arranged on the sealing plate (3); the first pressure sensor (9), the second pressure sensor (10), the third pressure sensor (11), and the displacement sensor (12) are all electrically connected to the control component (5), and the alarm module is electrically connected to the control component (5).

6. A control method for controlling the explosion-proof pressure relief system for a ship cabin according to any one of claims 1 to 5, characterized in that: include: A compressed state, when the explosion-proof pressure relief system for a ship cabin is in the compressed state, the piston rod of the cylinder (402) pushes the sealing plate (3) to abut against the sealing gasket (2), and the cylinder (402) is pressurized; standby state, when the explosion-proof pressure relief system for a ship cabin is in the standby state, the control component (5) monitors the values ​​of the first pressure sensor (9), the second pressure sensor (10), the third pressure sensor (11), and the displacement sensor (12) in real time, and generates an alarm if the values ​​are different from the preset values; A pressure relief state, when the explosion-proof pressure relief system for a ship cabin is in the pressure relief state, the piston rod of the cylinder (402) is separated from the contact with the sealing plate (3), and the pressure in the cabin (1) is released from between the relief port (1011) and the sealing plate (3); In the fire-fighting state, when the explosion-proof pressure relief system for the ship's cabin is in the fire-fighting state, the piston rod of the cylinder (402) is disengaged from the contact with the sealing plate (3), the pressure in the cabin (1) is released from between the discharge port (1011) and the sealing plate (3), and inert gas is input into the cabin (1) through the gas cylinder (401).

7. The control method according to claim 6, characterized in that: When the explosion-proof pressure relief system for a ship cabin is in the compressed state, when the value detected by the second pressure sensor (10) is less than a preset value, the first solenoid valve (404) is opened, the second solenoid valve (405) is closed, the pressure relief valve (403) is closed, the gas in the gas cylinder (401) is passed into the rodless chamber of the gas cylinder (402), and the piston rod of the gas cylinder (402) presses the sealing plate (3) onto the sealing gasket (2). When the displacement sensor (12) detects that the sealing plate (3 ) and when the second sensor detects that its value is equal to the preset value, the control component (5) determines that the sealing plate (3) has been compressed and closes the first solenoid valve (404); when the value detected by the second pressure sensor (10) is greater than the preset value, the second safety valve (8) opens until the value detected by the second pressure sensor (10) returns to the preset value, at which time the second safety valve (8) closes and the ship cabin explosion-proof pressure relief system switches from the compressed state to the standby state.

8. The control method according to claim 7, characterized in that: When the explosion-proof pressure relief system for a ship's cabin is in the standby state, the first solenoid valve (404), the second solenoid valve (405), and the pressure relief valve (403) are all closed. When the value of the first sensor is lower than a preset value, the alarm module determines that the pressure of the gas cylinder (401) is insufficient and issues an alarm; when the value of the second sensor is lower than a preset value, the alarm module determines that the sealing pressure of the sealing plate (3) is insufficient and issues an alarm; when the value of the third sensor is greater than a preset value and a displacement signal appears in the displacement sensor (12) at the same time, the alarm module determines that the sealing plate (3) is loose and issues an alarm. At this time, the first safety valve (7) is opened to relieve pressure. If the value of the third sensor does not return to the preset value within a preset time, the explosion-proof pressure relief system for a ship's cabin switches from the standby state to the pressure relief state.

9. The control method according to claim 8, characterized in that: When the explosion-proof pressure relief system for a ship cabin is in the pressure relief state, the first solenoid valve (404) is closed, the second solenoid valve (405) is closed, the pressure relief valve (403) is opened, and the gas in the rodless chamber of the cylinder (402) is released into the atmosphere from the pressure relief valve (403).

10. The control method according to claim 6, characterized in that: When the control component (5) receives a fire signal, the explosion-proof pressure relief system of the ship cabin is switched to the fire-fighting state, the first solenoid valve (404) is closed, the second solenoid valve (405) is opened, the pressure relief valve (403) is opened, and the gas in the gas cylinder (401) is passed into the cabin (1) through the second pipeline (407).

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