Air supply and return system of underwater rescue capsule

Abstract

The utility model provides an air supply and return system for an underwater rescue capsule. The air supply and return system comprises a rescue capsule cabin; the control chamber is arranged outside the rescue capsule cabin; the air supply device comprises an air compressor arranged in the control room and an air supply pipe, one end of the air supply pipe is communicated with the air compressor, the other end of the air supply pipe is communicated with the rescue capsule cabin, and a pneumatic motor is arranged in the air supply pipe; the air return device comprises a vacuum machine arranged in the control chamber and an air return pipe, one end of the air return pipe is communicated with the vacuum machine, the other end of the air return pipe is communicated with the rescue capsule cabin, a pneumatic fan is arranged in the air return pipe, and a linkage shaft is connected between the pneumatic fan and the pneumatic motor. The pressure in the capsule can be effectively adjusted, the efficiency and reliability of an air supply and return system are improved, and the adaptive capacity and survival performance of the underwater rescue capsule are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure balance of air supply and return in a lifeboat, in particular to an air supply and return system for an underwater lifeboat. Background Art

[0002] An underwater lifeboat is a device specifically designed to provide life support and protection underwater. As a specialized rescue device, the pressure inside the lifeboat is a key safety factor for the surviving personnel, and the air quality is a key comfort factor. Therefore, a compressed air system is essential. This system uses an air compressor to compress external air into high-pressure gas, which is then delivered to the lifeboat.

[0003] Because the exhaust air cannot be directly discharged outside the underwater lifeboat when the underwater environment is compressed, it is impossible to maintain a normal pressure and stable environment, which affects the pressure balance inside the lifeboat and reduces the stability and comfort of the living environment inside the cabin. Utility Model Content

[0004] In order to overcome the defects in the prior art, the embodiment of the present invention provides an underwater lifeboat supply and return air system, which can effectively regulate the pressure in the cabin, improve the efficiency and reliability of the supply and return air system, and enhance the adaptability and survivability of the underwater lifeboat.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model discloses an underwater lifeboat air supply and return system, comprising:

[0007] lifeboat cabin;

[0008] A control room, the control room being arranged outside the rescue capsule;

[0009] An air supply device, comprising an air compressor arranged in the control room, an air supply pipe having one end connected to the air compressor and the other end connected to the rescue capsule, wherein an air motor is arranged in the air supply pipe;

[0010] The return air device includes a vacuum machine arranged in the control room, a return air duct connected to the vacuum machine at one end and to the rescue cabin chamber at the other end, a pneumatic fan is arranged in the return air duct, and a linkage shaft is connected between the pneumatic fan and the pneumatic motor.

[0011] The above technical solution drives the pneumatic motor to rotate through high-pressure air to provide power for air supply. At the same time, the rotation of the pneumatic motor causes the linkage shaft to rotate, thereby driving the pneumatic fan to rotate. The rotation of the pneumatic fan provides auxiliary power for return air. Combined with the pressure difference power of the vacuum machine, the power source of return air is met, allowing air to enter the vacuum machine smoothly. By comprehensively utilizing the power of the pneumatic fan and the vacuum machine, not only the efficiency and reliability of the supply and return air system are improved, but also the pressure in the cabin is effectively adjusted, thereby ensuring the safety of the surviving personnel and enhancing the adaptability and survivability of the lifeboat system. While supplying air, it also provides an auxiliary power source for return air, providing more comprehensive and reliable protection for life support in emergency situations.

[0012] Furthermore, the air supply duct is provided with a first regulating valve located in the control room and a second regulating valve located in the lifeboat cabin, the pneumatic motor is provided between the first regulating valve and the second regulating valve, the return air duct is provided with a third regulating valve located in the control room and a shut-off valve located in the lifeboat cabin, and the pneumatic fan is provided between the third regulating valve and the shut-off valve. The first regulating valve, the second regulating valve, the third regulating valve, and the shut-off valve are capable of controlling the opening and closing states of the supply and return air systems. By adjusting the opening degrees of the first regulating valve, the second regulating valve, and the third regulating valve, the pressure in the lifeboat cabin can be adjusted, thereby balancing the pressure in the lifeboat cabin, maintaining stability in the lifeboat cabin, and improving the stability and comfort of the living environment in the cabin.

[0013] Furthermore, the air outlet of the supply air duct is located near the bottom of one side of the lifeboat cabin, and the return air outlet of the return air duct is located near the top of the other side of the lifeboat cabin. The arrangement of the air outlet and the return air outlet of the supply air duct creates a downward-sending and upward-returning air supply and return pattern within the lifeboat cabin. Air circulates along the cabin structure within the lifeboat cabin, effectively turbulently avoiding dead corners and air accumulation, facilitating air circulation and flow within the lifeboat cabin, improving air uniformity and ventilation efficiency within the cabin, and enhancing the air flow and freshness within the cabin.

[0014] Furthermore, a pressure gauge is provided within the rescue chamber, connected to the air supply pipe and positioned between the pneumatic motor and the second regulating valve. The pressure gauge can detect the pressure within the air supply pipe. Survivors within the rescue chamber use the pressure gauge reading to confirm the on / off status of the air compressor in the control room and adjust the on / off status of the second regulating valve and the shut-off valve within the rescue chamber.

[0015] Furthermore, a pressure display is provided in the control room, and a pressure sensor is provided in the lifeboat cabin. A sensing line is connected between the pressure display and the pressure sensor. Using the pressure value displayed by the pressure display, control room personnel can monitor the pressure in the lifeboat cabin in real time and adjust the opening levels of the first and third regulating valves in the control room as needed. Survivors in the lifeboat cabin can also adjust the opening level of the second regulating valve in the lifeboat cabin based on the value from the pressure sensor. Through collaboration between the control room personnel and the cabin occupants, pressure balance is achieved in the lifeboat cabin, enhancing the sense of security for the occupants and the stability of the living environment.

[0016] Furthermore, at rated air supply, the pressure drop of the return air duct is less than 1 bar. The air compressor can meet the air supply requirements of per capita air supply, and the pressure drop of the return air duct is less than 1 bar at rated air supply, which can ensure that the pressure inside the lifeboat cabin is at normal pressure.

[0017] Furthermore, a filter is connected to the air supply pipe and is arranged near the air outlet of the air supply pipe. The filter can improve the freshness of the air entering the lifeboat cabin.

[0018] Furthermore, a muffler is connected to the air supply pipe and is arranged at the rear end of the filter. The muffler can improve the comfort of the living environment in the rescue cabin.

[0019] Furthermore, the underwater lifeboat air supply and return system includes at least one lifeboat cabin, the control room is arranged outside the at least one lifeboat cabin, and the at least one lifeboat cabin is connected to the control room through an air supply pipe and an air return pipe.

[0020] Furthermore, the pressure display is connected to at least one pressure sensor.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] 1. In the present application, the pneumatic fan and the pneumatic motor are connected by a linkage shaft, and the pneumatic motor is driven to rotate by high-pressure air to provide power for air supply. At the same time, the rotation of the pneumatic motor causes the linkage shaft to rotate, thereby driving the pneumatic fan to rotate. The rotation of the pneumatic fan provides auxiliary power for return air, and the pressure difference power of the vacuum machine satisfies the power source of return air, so that air can smoothly enter the vacuum machine. By comprehensively utilizing the power of the pneumatic fan and the vacuum machine, not only the efficiency and reliability of the supply and return air system are improved, but also the pressure in the cabin is effectively adjusted, thereby ensuring the safety of the surviving personnel and enhancing the adaptability and survivability of the lifeboat system. While supplying air, it also provides an auxiliary power source for return air, providing more comprehensive and reliable protection for life support in emergency situations.

[0023] 2. The pneumatic fan used for auxiliary return air in this application is connected to the pneumatic motor through a linkage shaft. When the pneumatic motor rotates, the linkage shaft rotates, thereby driving the pneumatic fan to rotate. No additional power source is required to start the pneumatic fan, which can achieve effective utilization and transmission of energy.

[0024] 3. By setting up connected pressure displays and pressure sensors, the present application enables personnel in the control room and the lifeboat cabin to monitor the pressure conditions inside the lifeboat cabin in real time and adjust the opening degree of the regulating valves in the control room and the lifeboat cabin as needed. This not only can adjust the pressure inside the lifeboat cabin and achieve pressure balance inside the cabin, thereby enhancing the autonomous adjustment ability and adaptability of the underwater lifeboat cabin system, but also the collaboration between the personnel in the control room and the personnel in the lifeboat cabin provides the lifeboat cabin system with a more comprehensive and reliable pressure regulation means, thereby enhancing the sense of security of the personnel in the cabin and the stability of the living environment.

[0025] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of an underwater lifeboat air supply and return system provided by an embodiment of the present utility model;

[0028] Figure 2 This is a structural schematic diagram of another underwater lifeboat supply and return air system provided by an embodiment of the present utility model.

[0029] The figure marks of the above drawings are: 1. Control room; 2. Lifeboat cabin; 3. Air compressor; 4. Vacuum machine; 5. First regulating valve; 6. Second regulating valve; 7. Pneumatic motor; 8. Third regulating valve; 9. Stop valve; 10. Pneumatic fan; 11. Linkage shaft; 12. Pressure gauge; 13. Pressure display; 14. Pressure sensor; 15. Filter; 16. Muffler. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In addition, the drawings of the present invention are only for simple schematic illustration and are not depicted according to actual size. Please note in advance.

[0031] In the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "forward", "back", "between", "close to", "far away" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] It should be understood that although terms such as "first," "second," and "third" may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. In addition, the term "or" as used herein may include any one or more combinations of the associated listed items, as appropriate.

[0033] Reference Figures 1 and 2 An embodiment of the present application provides an underwater lifeboat air supply and return system, comprising: a control room 1 and a lifeboat cabin 2, the control room 1 and the lifeboat cabin 2 being connected via an air supply device and an air return device. When in use, the control room 1 is arranged outside the lifeboat cabin 2, and the lifeboat cabin 2 is located underwater. When a flooding crisis occurs, the control room 1 is located above the extreme flooding position, that is, above the highest water level, thereby providing air to the lifeboat cabin 2.

[0034] like Figure 1 As shown, the air supply device includes an air compressor 3 arranged in the control room 1, an air supply pipe with one end connected to the air compressor 3 and the other end connected to the lifeboat cabin 2, and an air motor 7 is provided in the air supply pipe, which can provide power for the air supply.

[0035] The return air device includes a vacuum machine 4 arranged in the control room 1, a return air duct with one end connected to the vacuum machine 4 and the other end connected to the lifeboat cabin 2, a pneumatic fan 10 is provided in the return air duct, and a linkage shaft 11 is connected between the pneumatic fan 10 and the pneumatic motor 7 to ensure that when the pneumatic motor 7 rotates, the pneumatic motor 7 rotates together with the linkage shaft 11, thereby driving the pneumatic fan 10 to rotate.

[0036] In a possible embodiment, the air supply pipe is provided with a first regulating valve 5 located in the control room 1 and a second regulating valve 6 located in the lifeboat cabin 2, the pneumatic motor 7 is located between the first regulating valve 5 and the second regulating valve 6, the return air pipe is provided with a third regulating valve 8 located in the control room 1 and a stop valve 9 located in the lifeboat cabin 2, and the pneumatic fan 10 is located between the third regulating valve 8 and the stop valve 9.

[0037] The first regulating valve 5, the second regulating valve 6 and the third regulating valve 8 provided in the above embodiment are pressure reducing regulating valves, and the supply and return air system can be opened and closed by the first regulating valve 5, the second regulating valve 6, the third regulating valve 8 and the stop valve 9, and the pressure in the lifeboat cabin 2 can be adjusted by adjusting the opening degree of the first regulating valve 5, the second regulating valve 6 and the third regulating valve 8, so that the pressure in the lifeboat cabin 2 is balanced.

[0038] Specifically, when an emergency occurs, the control room 1 is above the limit water level and the lifeboat cabin 2 is underwater. The staff can start the air compressor 3 and the vacuum machine 4 at the same time in the control room 1. The air is compressed by the air compressor 3 to form high-pressure air and enters the air supply pipe. The high-pressure air drives the pneumatic motor 7 to rotate, providing power for the air supply. At the same time, the rotation of the pneumatic motor 7 provides auxiliary power for the return air. The auxiliary power plus the pressure difference power of the vacuum machine 4 ensures that the return air is reliably guaranteed, so that the air can smoothly enter the vacuum machine 4, which can effectively regulate the pressure in the lifeboat cabin 2. It not only smoothly discharges the air in the lifeboat cabin 2 to the outside of the lifeboat cabin 2, maintains the pressure and stability of the lifeboat cabin 2, and improves the efficiency and reliability of the supply and return air system, but also greatly enhances the adaptability and survivability of the lifeboat system. Moreover, the pneumatic fan 10 can obtain power through the rotation of the pneumatic motor 7 only through the linkage shaft 11, without the need for an additional power source, and can achieve effective utilization and transmission of energy.

[0039] The air outlet of the air supply pipe is arranged near the bottom of one side of the rescue cabin chamber 2, and the air return port of the air return pipe is arranged near the top of the other side of the rescue cabin chamber 2.

[0040] In one possible embodiment, a pressure gauge 12 is provided in the rescue capsule compartment 2. The pressure gauge 12 is connected to the air supply pipe and is located between the second regulating valve 6 and the pneumatic motor 7. When the air compressor 3 is turned on, air is compressed by the air compressor 3 to form high-pressure air, which enters the air supply pipe and passes through the pressure gauge 12. People in the rescue capsule compartment 2 can confirm that the air compressor 3 is turned on based on the value of the pressure gauge 12, thereby opening the second regulating valve 6 and the stop valve 9, and the supply and return air system begins to operate.

[0041] In one possible embodiment, a pressure display 13 is provided in the control room 1, and a pressure sensor 14 is provided in the rescue chamber 2. A sensing line is connected between the pressure display 13 and the pressure sensor 14. The pressure sensor 14 is used to detect the pressure in the rescue chamber 2 and provide feedback to the pressure display 13 via the sensing line, allowing personnel in the control room 1 and the rescue chamber 2 to monitor the pressure in the rescue chamber 2 in real time. The personnel in the control room 1 can adjust the openings of the first and third regulating valves 5 and 8 based on the values ​​in the pressure display 13, while the survivors in the rescue chamber 2 can adjust the openings of the second regulating valve 6 based on the values ​​in the pressure sensor 14. For example, when the pressure in the chamber is too high, the personnel in the control room 1 can reduce the openings of the first and third regulating valves 5 and 8 in the control room 4, while the survivors in the rescue chamber 2 can adjust the openings of the second regulating valve 6 in the chamber, or close the second regulating valve 6 if necessary, to adjust the pressure in the chamber to a level that is comfortable and safe for the human body, and vice versa.

[0042] In a possible embodiment, a filter 15 is connected to the air supply pipe. The filter 15 is arranged near the air outlet of the air supply pipe, for example, it can be arranged at the rear end of the second regulating valve 6 to purify the air entering the lifeboat cabin 2 and improve the air freshness.

[0043] In a possible embodiment, a muffler 16 is connected to the air supply pipe. The muffler 16 is arranged at the rear end of the filter 15 to improve the comfort level in the rescue capsule cabin 2.

[0044] When the air supply and return system of the underwater lifeboat is working, the air compressor 3 can meet the air supply demand per person. Under the rated air supply, the pressure drop of the return air duct is less than 1 bar, so as to ensure that the pressure in the lifeboat cabin 2 is at normal pressure. The rated air supply is the volume of compressed air passing through the air supply duct per unit time under the rated pressure. In a possible embodiment, when the rated pressure is 0.3 MPa, the rated air supply per person in the lifeboat cabin 2 is 0.3 m 3 / min.

[0045] like Figure 2As shown, in a possible embodiment, the underwater lifeboat supply and return air system includes at least one lifeboat compartment 2, the control room 1 is arranged outside the at least one lifeboat compartment 2, and the at least one lifeboat compartment 2 is connected to the control room 1 through an air supply pipe and a return air pipe.

[0046] When more than two lifeboat compartments 2 are provided, the pressure display 13 in the control room 1 is connected to more than two pressure sensors 14, and the wind compressor 3 can meet the air supply requirements per capita. Under the rated air supply, the pressure drop of each return air duct is less than 1 bar to ensure that the pressure in each lifeboat compartment 2 is at normal pressure.

[0047] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An underwater lifeboat air supply and return system, characterized in that: include: lifeboat cabin; A control room, the control room being arranged outside the rescue capsule; An air supply device, comprising an air compressor arranged in the control room, an air supply pipe having one end connected to the air compressor and the other end connected to the rescue capsule, wherein an air motor is arranged in the air supply pipe; The return air device includes a vacuum machine arranged in the control room, a return air duct connected to the vacuum machine at one end and to the rescue cabin chamber at the other end, a pneumatic fan is arranged in the return air duct, and a linkage shaft is connected between the pneumatic fan and the pneumatic motor.

2. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: The air supply pipe is provided with a first regulating valve located in the control room and a second regulating valve located in the lifeboat cabin, the pneumatic motor is provided between the first regulating valve and the second regulating valve, the return air pipe is provided with a third regulating valve located in the control room and a stop valve located in the lifeboat cabin, and the pneumatic fan is provided between the third regulating valve and the stop valve.

3. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: The air outlet of the air supply pipe is arranged near the bottom of one side of the rescue cabin, and the air return port of the air return pipe is arranged near the top of the other side of the rescue cabin.

4. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: A pressure gauge is provided in the rescue cabin, and the pressure gauge is connected to the air supply pipe and is provided between the pneumatic motor and the second regulating valve.

5. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: A pressure display is provided in the control room, a pressure sensor is provided in the lifeboat cabin, and a sensing line is connected between the pressure display and the pressure sensor.

6. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: At rated air supply volume, the pressure drop of the return air duct is less than 1 bar.

7. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: The air supply pipe is connected to a filter, and the filter is arranged close to the air outlet of the air supply pipe.

8. The underwater rescue chamber air supply and return system according to claim 7, characterized in that: The air supply pipe is connected to a muffler, and the muffler is arranged at the rear end of the filter.

9. The underwater rescue chamber air supply and return system according to claim 1, characterized in that: The underwater lifeboat air supply and return system comprises at least one lifeboat cabin, the control room is arranged outside the at least one lifeboat cabin, and the at least one lifeboat cabin is connected to the control room through an air supply pipe and an air return pipe.

10. The underwater rescue chamber air supply and return system according to claim 5, characterized in that: The pressure display is connected to at least one pressure sensor.

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