A control box for discharging CO2 fire extinguishing
By introducing an interlocking structure between the No. 1 and No. 2 handles and a connecting gas pipe into the marine CO2 fire extinguishing system, the problems of gas pipe rupture and leakage caused by misoperation were solved, ensuring correct extinguishing agent release and system stability, and guaranteeing the safety of the crew.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HAIWEISTON FIRE TECHNOLOGY CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
The release control box of the existing marine CO2 fire extinguishing system is prone to misoperation in emergency situations, which may result in the fire extinguishing agent not being released accurately or being released to the wrong location, thus failing to effectively control the fire and potentially causing damage to other areas.
The system employs an interlocking structure formed by the No. 1 and No. 2 handles. The mechanical interlocking components prevent air pipe rupture and leakage caused by misoperation, ensuring the correct release of the extinguishing agent. The system also utilizes the connecting air pipe and delay device to improve system stability and safety.
It effectively prevents ventilator rupture and leakage, ensures the correct release of extinguishing agent, reduces misjudgment, and improves system stability and crew safety during escape.
Smart Images
Figure CN224523839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine fire protection system technology, and in particular to a release control box for marine CO2 fire extinguishing. Background Technology
[0002] The CO2 extinguishing system's release control box is the core control unit of a ship's fire protection system, playing a crucial role in ensuring ship fire safety. Its main function is to safely and orderly release extinguishing agents during a fire, effectively controlling the fire and protecting the lives and property of the ship and crew. The core design of this control box focuses on two key points: the irreversibility of the operating sequence and strong visibility of the system status. The irreversibility of the operating sequence ensures that firefighting operations are strictly carried out according to established safety procedures in emergency and chaotic fire scenarios. During ship navigation, fire is an extremely destructive emergency that can quickly spiral out of control. When a fire occurs, timely and effective use of the CO2 extinguishing system is a key measure to control the fire and minimize losses.
[0003] Existing technologies have made specific arrangements for the release control box of marine CO2 fire extinguishing systems. Typically, the fire extinguishing system is activated by manually opening valves. This method relies to some extent on the crew's operational skills and emergency response capabilities. However, due to the complex and ever-changing situation at fire scenes, filled with tension and danger, crew members are highly susceptible to operational errors due to high stress. For example, they might rashly open valves without confirming whether personnel have been evacuated from the fire area or checking the system's status, or they might operate valves in the wrong sequence, resulting in the extinguishing agent not being accurately released into the fire area or even released into the wrong location, thus failing to effectively control the fire and potentially causing unnecessary damage to other areas.
[0004] Currently, existing technologies lack a comprehensive and systematic solution for preventing crew misoperation and achieving correct and effective CO2 fire suppression in emergency situations. While existing operating methods and control box designs meet basic fire suppression needs to a certain extent, they still have many shortcomings in dealing with complex and ever-changing fire scenarios and ensuring crew safety, requiring further improvement and refinement. Summary of the Invention
[0005] The purpose of this utility model is to provide a marine CO2 fire extinguishing release control box. Through the interlocking structure formed by the first handle and the second handle, it can prevent the high-pressure gas from being compressed inside the gas pipe due to accidental operation such as opening the second handle first, thus preventing the gas pipe from rupturing. This solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine CO fire extinguishing release control box, comprising a control box, wherein a mechanical interlock assembly for safe operation is installed inside the control box, and the mechanical interlock assembly includes a mounting plate that can be detachably installed inside the control box;
[0007] A first control valve is fixedly installed on the front of the mounting plate. A first rotating shaft is fixedly installed inside the first control valve. A first handle is fixedly installed on the outside of the first rotating shaft. A second control valve is fixedly installed on the surface of the mounting plate. A second rotating shaft is fixedly installed inside the second control valve. A second handle is fixedly installed on the outside of the second rotating shaft.
[0008] Preferably, a control bottle assembly is installed below both the first control valve and the second control valve. The control bottle assembly includes a first control bottle that is detachably installed below the first control valve, a first bottle head valve that is fixedly installed above the first control bottle, a second control bottle that is detachably installed below the second control valve, and a second bottle head valve that is fixedly installed above the second control bottle.
[0009] Preferably, the first control valve and the second control valve are equipped with an air pipe assembly on their sides and tops. The air pipe assembly includes a first air outlet pipe fixedly installed on the top of the first control valve, and a second air outlet pipe installed on the top of the second control valve.
[0010] Preferably, the first control valve and the second control valve are connected by a connecting air pipe on their sides, and a connecting valve is fixedly installed inside the connecting air pipe.
[0011] Preferably, a door assembly is installed on the front of the control box, the door assembly includes a control box door connected and installed on the surface of the control box, and a sealing gasket is fixedly installed on the back of the control box door.
[0012] Preferably, a control door lock is installed inside the control box door, and a glass plate is installed inside the control box door.
[0013] Preferably, the surface of the mounting plate is detachably fitted with fixing bolts, the back of the control box is fixedly fitted with a fixing plate, an alarm is fixedly fitted on the bottom surface inside the control box, and a timer is fixedly fitted at the top of the second air outlet pipe.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The interlocking structure formed by the No. 1 handle and the No. 2 handle can prevent the high-pressure gas generated by opening the No. 2 handle first from being compressed inside the gas pipe and causing the gas pipe to rupture. It also prevents the No. 2 control valve from leaking and causing the carbon dioxide fire extinguishing device to start, thereby greatly reducing the misjudgment problem that may occur due to gas leakage.
[0016] 2. The present invention can greatly increase the stability of the device by setting up connecting air pipes and connecting valves, which can prevent the problem of fire extinguishing failure due to a single mechanical failure. The alarm can urge the crew to escape, and the delay device can prevent the problem of carbon dioxide release being too fast and affecting the crew's escape. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is an external structural view of the present invention;
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the mechanical interlocking assembly of this utility model;
[0021] Figure 4 This is a schematic diagram of the tracheal tube assembly structure of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Control box; 2. Box door assembly; 21. Control box door; 22. Sealing gasket; 23. Control door lock; 24. Glass plate; 3. Mechanical interlock assembly; 31. Mounting plate; 32. Control valve No. 1; 33. Rotating shaft No. 1; 34. Handle No. 1; 35. Control valve No. 2; 36. Rotating shaft No. 2; 37. Handle No. 2; 4. Control bottle assembly; 41. Control bottle No. 1; 42. Bottle head valve No. 1; 43. Control bottle No. 2; 44. Bottle head valve No. 2; 5. Gas pipe assembly; 51. Gas outlet pipe No. 1; 52. Gas outlet pipe No. 2; 53. Connecting gas pipe; 54. Connecting valve; 6. Fixing bolt; 7. Fixing plate; 8. Alarm; 9. Time delay. Detailed Implementation
[0024] 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.
[0025] This utility model provides a technical solution:
[0026] Please see Figures 1 to 3 A marine CO2 fire extinguishing release control box includes a control box 1, wherein a mechanical interlock assembly 3 for safe operation is installed inside the control box 1, and the mechanical interlock assembly 3 includes a mounting plate 31 that is detachably installed inside the control box 1.
[0027] A first control valve 32 is fixedly installed on the front of the mounting plate 31. A first rotating shaft 33 is fixedly installed inside the first control valve 32. A first handle 34 is fixedly installed on the outside of the first rotating shaft 33. A second control valve 35 is fixedly installed on the surface of the mounting plate 31. A second rotating shaft 36 is fixedly installed inside the second control valve 35. A second handle 37 is fixedly installed on the outside of the second rotating shaft 36. A control bottle assembly 4 is installed below the first control valve 32 and the second control valve 35. The control bottle assembly 4 includes a first control bottle 41 that is detachably installed below the first control valve 32. A first bottle head valve 42 is fixedly installed above the first control bottle 41. A second control bottle 43 is detachably installed below the second control valve 35. A second bottle head valve 44 is fixedly installed above the second control bottle 43.
[0028] By adopting the above technical solution, during use, opening the first bottle head valve 42 causes the first control bottle 41 to release high-pressure nitrogen gas. The high-pressure nitrogen gas drives the first control valve 32 to rotate, and the rotation of the first control valve 32 can drive the first handle 34 to rotate around the first rotating shaft 33. If the above operation fails to operate normally and the first control valve 32 fails to open, the first handle 34 can be manually moved to open the first control valve 32. Since the first handle 34 is blocking the front of the second handle 37, the second handle 37 cannot rotate normally. When the first handle 34 rotates, there is no longer an obstruction in front of the second handle 37, so the second handle 37 can be manually moved. The rotating mechanism opens the second control valve 35, releasing nitrogen from the second control cylinder 43. This interlocking structure prevents the high-pressure gas generated by opening the second handle 37 from rupturing due to pressure buildup inside the gas pipe. If the second control valve 35 leaks, it will cause the second handle 37 to rotate. However, if the first control valve 32 is functioning correctly, the first handle 34 will still lock the second handle 37, preventing the second control valve 35 from leaking completely. This prevents the carbon dioxide fire extinguishing system from activating due to a leak in the second control valve 35. This design significantly reduces the risk of misjudgment caused by gas leaks.
[0029] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the first control valve 32 and the second control valve 35 are equipped with an air pipe assembly 5 on their sides and tops. The air pipe assembly 5 includes a first air outlet pipe 51 fixedly installed on the top of the first control valve 32, and a second air outlet pipe 52 installed on the top of the second control valve 35. The first control valve 32 and the second control valve 35 are equipped with a connecting air pipe 53 on their sides. A connecting valve 54 is fixedly installed inside the connecting air pipe 53. A door assembly 2 is installed on the front of the control box 1. The door assembly 2 includes a control box door 21 connected and installed on the surface of the control box 1. A sealing gasket 22 is fixedly installed on the back of the control box door 21. A control door lock 23 is installed inside the control box door 21. A glass plate 24 is installed inside the control box door 21. A fixing bolt 6 is detachably installed on the surface of the mounting plate 31. A fixing plate 7 is fixedly installed on the back of the control box 1. An alarm 8 is fixedly installed on the bottom surface inside the control box 1. A delay device 9 is fixedly installed at the top of the second air outlet pipe 52.
[0030] By adopting the above technical solution, it is necessary to open the control door lock 23, and then open the control box door 21. Since the control box door 21 is opened, the end of the alarm 8 installed inside the control box 1 is no longer compressed, so the alarm 8 sounds, allowing the crew to escape. High-pressure nitrogen drives the first control valve 32 to rotate, allowing high-pressure nitrogen to be discharged through the first outlet pipe 51, thereby opening the selector valve on the ship's gas pipe, allowing subsequent carbon dioxide to pass normally to extinguish the fire in the burning compartment. High-pressure nitrogen enters the delay unit 9 through the second control valve 35. After a period of time inside the delay unit 9, the high-pressure nitrogen enters the second outlet pipe 52 and is discharged through the second outlet pipe 52, impacting the valve of the carbon dioxide storage cylinder, driving the valve to open, allowing carbon dioxide to pass through the gas pipe to extinguish the fire. Firefighting is carried out in the compartment. Control valve 32 and control valve 35 are connected by a connecting gas pipe 53 and controlled by a connecting valve 54. Under normal circumstances, the connecting valve 54 is closed and control valve 32 and control valve 35 are not connected. When there is a mechanical failure between control valve 32 and cylinder head valve 42 and gas cannot be released, the connecting valve 54 can be opened to allow the high-pressure nitrogen inside control cylinder 43 to be discharged from the outlet pipe 51 and drive the parts that need to be driven by outlet pipe 51. Similarly, if there is a mechanical failure between control valve 35 and cylinder head valve 44, the same treatment method can be used to make it work normally. Fixing bolts 6 install mounting plate 31 inside control box 1 and fix control box 1 by fixing plate 7.
[0031] Working principle: In use, the control door lock 23 is opened, which in turn opens the control box door 21. With the control box door 21 open, the end of the alarm 8 installed inside the control box 1 is no longer compressed, thus triggering the alarm. Then, the first cylinder head valve 42 is opened, causing the first control cylinder 41 to release high-pressure nitrogen. The high-pressure nitrogen drives the first control valve 32 to rotate, allowing the high-pressure nitrogen to be discharged through the first outlet pipe 51, thereby opening the selector valve on the ship's gas pipe, allowing subsequent carbon dioxide to pass normally for extinguishing the fire in the compartment. The rotation of the first control valve 32 also drives the first handle 34 to rotate around the first rotating shaft 33. If the above operation fails to operate normally, the first control valve 32 will fail to open. Manually moving handle 34 opens control valve 32. Because handle 34 blocks handle 37, it cannot rotate normally. When handle 34 rotates, handle 37 is no longer obstructed, allowing it to rotate manually and opening control valve 35. This releases nitrogen from control cylinder 43. High-pressure nitrogen enters delay unit 9 through control valve 35. After a period of time inside delay unit 9, the nitrogen enters outlet pipe 52 and is discharged, impacting the valve of the carbon dioxide storage cylinder and opening it. This allows carbon dioxide to be used to extinguish the fire in the burning compartment. This design forms an interlocking structure, preventing the high-pressure gas generated by opening the second handle 37 first from rupturing the gas pipe due to its internal pressure. The delay device 9 also prevents the rapid release of carbon dioxide, thus hindering crew escape and allowing time for movement. If the second control valve 35 leaks, it will rotate the second handle 37. However, if the first control valve 32 is functioning correctly, the first handle 34 will still lock the second handle 37, preventing a complete leak in the second control valve 35 and thus preventing the carbon dioxide extinguishing system from activating due to a leak. This design significantly reduces the risk of misjudgment caused by gas leaks, ensuring a smooth connection between the first and second control valves. The connection is established through the connecting pipe 53, and the switch is controlled by the connecting valve 54. Under normal circumstances, the connecting valve 54 is in the closed state, and there is no connection between the first control valve 32 and the second control valve 35. When there is a mechanical fault between the first control valve 32 and the first bottle head valve 42, and the gas cannot be released, the connecting valve 54 can be opened to allow the high-pressure nitrogen inside the second control bottle 43 to be discharged from the first gas outlet pipe 51, driving the parts that need to be driven by the first gas outlet pipe 51. Similarly, if there is a mechanical fault between the second control valve 35 and the second bottle head valve 44, the same treatment method can be used to make it work normally. The fixing bolt 6 installs the mounting plate 31 inside the control box 1, and the fixing plate 7 fixes the control box 1.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A marine CO2 fire extinguishing release control box, comprising a control box (1), characterized in that: The control box (1) is equipped with a mechanical interlock assembly (3) for safe operation, the mechanical interlock assembly (3) including a mounting plate (31) that is detachably installed inside the control box (1). A first control valve (32) is fixedly installed on the front of the mounting plate (31). A first rotating shaft (33) is fixedly installed inside the first control valve (32). A first handle (34) is fixedly installed on the outside of the first rotating shaft (33). A second control valve (35) is fixedly installed on the surface of the mounting plate (31). A second rotating shaft (36) is fixedly installed inside the second control valve (35). A second handle (37) is fixedly installed on the outside of the second rotating shaft (36).
2. The marine CO2 fire extinguishing release control box according to claim 1, characterized in that: A control bottle assembly (4) is installed below the first control valve (32) and the second control valve (35). The control bottle assembly (4) includes a first control bottle (41) that is detachably installed below the first control valve (32). A first bottle head valve (42) is fixedly installed above the first control bottle (41). A second control bottle (43) is detachably installed below the second control valve (35). A second bottle head valve (44) is fixedly installed above the second control bottle (43).
3. The marine CO2 fire extinguishing release control box according to claim 1, characterized in that: The first control valve (32) and the second control valve (35) are both equipped with an air pipe assembly (5). The air pipe assembly (5) includes a first air outlet pipe (51) fixedly installed at the top of the first control valve (32) and a second air outlet pipe (52) installed at the top of the second control valve (35).
4. The marine CO2 fire extinguishing release control box according to claim 3, characterized in that: The first control valve (32) and the second control valve (35) are both equipped with a connecting pipe (53) on their sides, and a connecting valve (54) is fixedly installed inside the connecting pipe (53).
5. The marine CO2 fire extinguishing release control box according to claim 4, characterized in that: The control box (1) has a door assembly (2) installed on the front side. The door assembly (2) includes a control box door (21) connected to and installed on the surface of the control box (1). A sealing gasket (22) is fixedly installed on the back side of the control box door (21).
6. The marine CO2 fire extinguishing release control box according to claim 5, characterized in that: The control box door (21) is equipped with a control door lock (23) and a glass plate (24) is installed inside the control box door (21).
7. The marine CO2 fire extinguishing release control box according to claim 3, characterized in that: The mounting plate (31) is detachably mounted with fixing bolts (6), the back of the control box (1) is fixedly mounted with a fixing plate (7), the bottom of the control box (1) is fixedly mounted with an alarm (8), and the top of the second air outlet pipe (52) is fixedly mounted with a delay device (9).