Pressurized Oxygen Supplement Multifunctional Cabin for Underground Space Use

Abstract

The present invention discloses a pressurized oxygen supplement multi-functional cabin suitable for underground space use, which includes a pressurized life-saving cabin (1), an escape shaft (2) and in-cabin equipment (3); the pressurized life-saving cabin (1) includes a cabin body (1.1), an escape shaft interface (1.2), a pressure-bearing airtight door (1.3), a pressure-bearing wall (1.4), a non-pressure-bearing door (1.5), a non-pressure-bearing wall (1.6), a gravity water chamber (1.7), and a sewage chamber (1.8); the escape shaft (2) includes a pipe body (2.1), a hot water main pipe (2.2), a cold water main pipe (2.3), a pressurization main pipe (2.4), a pressure relief main pipe (2.5), and a ladder (2.6); the in-cabin equipment (3) includes a heat exchanger (3.1), an in-cabin hot water system (3.2), an in-cabin cold water system (3.3), an in-cabin pressurization system (3.4), an in-cabin pressure relief system (3.5), a shower water system (3.6), a sewage disposal system (3.7), a reserve air system (3.8), and a reserve air gas path (3.9). The present invention can be used as a rest cabin, a refuge cabin and an escape facility.

Description

Technical Field

[0001] The present invention relates to underground operation support facilities, and particularly to a pressurized oxygen supplementation multifunctional cabin suitable for use in underground spaces. Background Art

[0002] In projects such as mines and tunnels, a large amount of underground operations are involved. In order to ensure the safety and work efficiency of underground operation personnel, support facilities need to be set up. Especially in underground spaces in deep wells or high-altitude areas, where the oxygen concentration is low and the escape difficulty is great, more scientific and reliable support facilities are needed.

[0003] Currently, underground operation support facilities are all set up independently for life-saving cabins, escape galleries, and system pipe wells. The design and construction of the entire facility are complex, not only with high costs and low life-saving efficiency; moreover, the main method of oxygen supply is by diffusion to restore the physical strength of operation personnel, with high safety risks; furthermore, existing life-saving cabins require sufficient power supply to ensure the water and air conditioning requirements inside the cabin, and rely heavily on external energy supply. Summary of the Invention

[0004] The purpose of the present invention is to provide a pressurized oxygen supplementation multifunctional cabin suitable for use in underground spaces, which can be used as a rest cabin to provide an environment with suitable oxygen content, carbon dioxide content, and temperature for personnel, while solving the sanitation requirements, can be used as a refuge cabin to achieve effective refuge and rapid evacuation, supplement the air inside the cabin, can be used as a ventilation air source for underground spaces, improve the safety of underground operations and the utilization rate of facilities, and streamline the underground pipe network system.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A multi-functional pressurized oxygen supply cabin suitable for underground space use, comprising a pressurized rescue cabin (1), an escape shaft (2) and in-cabin equipment (3); the main body of the pressurized rescue cabin (1) is a cabin body (1.1) with a double-layer shell, a gravity water chamber (1.7) is provided in the top interlayer of the cabin body (1.1), a sewage chamber (1.8) is provided in the bottom interlayer, the interior of the cabin body (1.1) is separated into a transition chamber and a pressurized chamber by a pressure-bearing wall (1.4), and the pressurized chamber and a sanitary chamber are separated by a non-pressure-bearing wall (1.6). An escape shaft interface (1.2) is provided at the top of the pressurized chamber, and pressure-bearing airtight doors (1.3) are provided at the entrance of the transition chamber, the escape shaft interface (1.2) and the pressure-bearing wall (1.4). A non-pressure-bearing door (1.5) capable of ventilation is provided on the non-pressure-bearing wall (1.6); the main body of the escape shaft (2) is a pipe body (2.1) with a double-layer shell docked with the escape shaft interface (1.2). A hot water main pipe (2.2), a cold water main pipe (2.3), a pressurization main pipe (2.4), a pressure relief main pipe (2.5) and a ladder (2.6) are provided in the pipe body (2.1). The hot water main pipe (2.2) and the cold water main pipe (2.3) are connected to a heat source and a power source on the ground to form a loop, the pressurization main pipe (2.4) is connected to a high-pressure gas source on the ground, and the pressure relief main pipe (2.5) is communicated with the atmosphere outside the cabin; the in-cabin equipment (3) includes a heat exchanger (3.1), a shower water supply system (3.6), a sewage disposal system (3.7), a reserve air system (3.8), a reserve air pipeline (3.9), and an in-cabin hot water system (3.2), an in-cabin cold water system (3.3), an in-cabin pressurization system (3.4), an in-cabin pressure relief system (3.5) respectively connected to the hot water main pipe (2.2), the cold water main pipe (2.3), the pressurization main pipe (2.4), the pressure relief main pipe (2.5). The heat exchanger (3.1), the in-cabin hot water system (3.2) and the in-cabin cold water system (3.3) are connected in a loop in the pressurized chamber to realize in-cabin temperature regulation. The in-cabin pressurization system (3.4) is used to control the supply of pressurized air to the pressurized chamber, the transition chamber and outside the cabin. The reserve air system (3.8) is connected to the in-cabin pressurization system (3.4) through the reserve air pipeline (3.9) to realize inflation or serve as a standby high-pressure gas source. The in-cabin pressure relief system (3.5) is used to control the pressure relief of the transition chamber and the sanitary chamber to the outside of the cabin. The shower water supply system (3.6) and the sewage disposal system (3.7) are located in the sanitary chamber and are respectively connected to the gravity water chamber (1.7) and the sewage chamber (1.8).

[0007] Preferably, the in-cabin pressurization system (3.4) includes an in-cabin pressurization main pipe (3.4.1) connected to the pressurization main pipe (2.4). One path at the outlet of the in-cabin pressurization main pipe (3.4.1) is the pressurization chamber pressurization branch pipe (3.4.5), and the other path extends into the transition chamber through the transition chamber pressurization branch pipe in a sealed manner. An out-of-cabin ventilation pipe (3.4.7) that extends out of the cabin in a sealed manner is connected in parallel to the pressurization chamber pressurization branch pipe (3.4.5) or the transition chamber pressurization branch pipe. An in-cabin pressurization main pipe control valve (3.4.2), a pressurization chamber pressurization branch pipe control valve (3.4.3), a transition chamber pressurization branch pipe control valve (3.4.4), and an out-of-cabin ventilation pipe control valve (3.4.6) are respectively provided on the in-cabin pressurization main pipe (3.4.1), the pressurization chamber pressurization branch pipe (3.4.5), the transition chamber pressurization branch pipe, and the out-of-cabin ventilation pipe (3.4.7).

[0008] Preferably, the reserve air gas path (3.9) includes a reserve air main pipe (3.9.2) connected to the reserve air system (3.8). The reserve air main pipe (3.9.2) is connected to the in-cabin pressurization main pipe (3.4.1) and is located downstream of the in-cabin pressurization main pipe control valve (3.4.2). A reserve air main pipe control valve (3.9.1) is provided on the reserve air main pipe (3.9.2).

[0009] Preferably, the in-cabin pressure relief system (3.5) includes an in-cabin pressure relief main pipe (3.5.1) connected to the pressure relief main pipe (2.5). One path at the outlet of the in-cabin pressure relief main pipe (3.5.1) extends into the transition chamber through the transition chamber pressure relief branch pipe (3.5.4) in a sealed manner, and the other path extends into the sanitation room through the sanitation room pressure relief branch pipe (3.5.5) in a sealed manner. A transition chamber pressure relief branch pipe control valve (3.5.3) and a sanitation room pressure relief branch pipe control valve (3.5.2) are respectively provided on the transition chamber pressure relief branch pipe (3.5.4) and the sanitation room pressure relief branch pipe (3.5.5).

[0010] Preferably, the in-cabin hot water system (3.2) includes an in-cabin hot water main pipe (3.2.1) connected to the hot water main pipe (2.2). An in-cabin hot water main pipe control valve (3.2.3) is provided on the in-cabin hot water main pipe (3.2.1).

[0011] Preferably, the ladder (2.6) is arranged on the cold water main pipe (2.3) and the pressurization main pipe (2.4).

[0012] Preferably, the reserve air system (3.8) uses a reserve air bottle group and a manifold.

[0013] During normal use:

[0014] The steps for entering the cabin are as follows: After personnel enter the transition chamber through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber, they close the pressure-bearing airtight door (1.3). Then, pressurized air is supplied to the transition chamber through the in-cabin pressurization system (3.4). After the air pressure in the transition chamber is balanced with that in the pressurized chamber, the supply of pressurized air to the transition chamber is stopped. Then, they enter the pressurized chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) and close the pressure-bearing airtight door (1.3). Then, pressurized air is supplied to the pressurized chamber through the in-cabin pressurization system (3.4). After the pressurized chamber reaches the appropriate pressure, the in-cabin pressurization system (3.4) is closed to achieve stable pressure.

[0015] The steps for exiting the cabin are as follows: First, pressurized air is supplied to the transition chamber through the in-cabin pressurization system (3.4). After the air pressure in the transition chamber is balanced with that in the pressurized chamber, the in-cabin pressurization system (3.4) is closed. Then, personnel enter the transition chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) from the pressurized chamber and close the pressure-bearing airtight door (1.3). Then, the transition chamber is depressurized to the outside of the cabin through the in-cabin pressure relief system (3.5), and personnel leave the cabin body (1.1) through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber.

[0016] If it is necessary to reduce the carbon dioxide concentration in the cabin, pressurized air is supplied to the pressurized chamber through the in-cabin pressurization system (3.4), and at the same time, the sanitary chamber is depressurized to the outside of the cabin through the in-cabin pressure relief system (3.5) to achieve pressure maintenance and air exchange in the cabin.

[0017] If it is necessary to ventilate the area outside the cabin in the underground space, pressurized air is supplied to the outside of the cabin through the in-cabin pressurization system (3.4) as the ventilation air source for the underground space.

[0018] If it is necessary to inflate the reserve air system (3.8), the pressure of the high-pressure air source is increased, and at the same time, the high-pressure air source only flows to the reserve air system (3.8) through the in-cabin pressurization system (3.4) and the reserve air pipeline (3.9).

[0019] In case of emergency:

[0020] Personnel directly enter the transition chamber through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber and close the pressure-bearing airtight door (1.3). Then, they directly enter the pressurized chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) and close the pressure-bearing airtight door (1.3). Then, pressurized air is supplied to the pressurized chamber through the in-cabin pressurization system (3.4) to enhance the anti-destruction ability of the cabin body (1.1). After the external destruction situation is stable, the pressure is slowly relieved through the in-cabin pressure relief system (3.5). Personnel enter the escape shaft (2) through the pressure-bearing airtight door (1.3) at the interface of the escape shaft (2), and then use the ladder (2.6) to reach the ground directly.

[0021] If the escape shaft (2) is damaged and cannot allow personnel to pass through, the escape shaft (2) is used as a speaking tube.

[0022] If the escape shaft (2) is damaged and cannot be used for personnel passage, and the main pressurization pipeline (2.4) or the high-pressure gas source on the ground fails, the reserve air system (3.8) serves as a backup high-pressure gas source, supplies air to the cabin pressurization system (3.4) through the reserve air pipeline (3.9), and conveys pressurized air to the pressurized chamber through the cabin pressurization system (3.4) to provide a good cabin environment.

[0023] When the underground space is large or long, several pressurization and oxygen supplementation multi-functional cabins suitable for underground space use are combined. Each escape shaft (2) converges to a closed escape passage.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention can be used as a rest cabin during normal use to provide an environment with appropriate oxygen content, carbon dioxide content, and temperature for personnel, and at the same time solve the sanitation requirements. It can also be used as a refuge cabin in case of emergency to achieve effective refuge and rapid evacuation. When the external environment does not allow evacuation, it can supplement the air in the cabin and can also be used as a ventilation gas source for the underground space, overall improving the safety of underground operations and the utilization rate of facilities, and streamlining the underground pipeline system; both the cabin body (1.1) and the pipe body (2.1) adopt double-layer shells, with a certain anti-destruction ability, which can ensure the normal operation of the internal equipment of each; the pressure-bearing airtight door (1.3) realizes different pressure zones inside the cabin body (1.1); the gravity water chamber (1.7) ensures the normal water use demand of the shower water system (3.6) without energy supply, and the sewage chamber (1.8) ensures the collection of wastewater from the sewage discharge system (3.7) without energy supply to ensure the environmental sanitation inside the cabin; the hot water main pipeline (2.2), cold water main pipeline (2.3), heat exchanger (3.1), cabin internal hot water system (3.2), and cabin internal cold water system (3.3) form a set of circulating heating equipment to ensure the temperature adjustment inside the cabin; the sanitation room can release pressure to the outside of the cabin to ensure that the air flow inside the cabin flows from the area without odor to the area with odor, which is beneficial to the cabin environment. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the pressurization and oxygen supplementation multi-functional cabin suitable for underground space use in the embodiment of the present invention.

[0027] Figure 2 It is a schematic diagram of the pressurized rescue cabin in the embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of the escape shaft in the embodiment of the present invention.

[0029] Figure 4 It is a cross-sectional schematic diagram of the escape shaft in the embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of the in-cabin equipment in the embodiment of the present invention.

[0031] Figure 6 It is a schematic diagram of the in-cabin pressurization system in the embodiment of the present invention.

[0032] Figure 7 It is a schematic diagram of the in-cabin pressure relief system in the embodiment of the present invention.

[0033] Figure 8 It is a schematic diagram of the heat exchanger, in-cabin hot water system, and in-cabin cold water system in the embodiment of the present invention.

[0034] Figure 9 It is a schematic diagram of the reserve air system and reserve air gas path in the embodiment of the present invention.

[0035] Figure 10 It is a schematic diagram when the pressurized oxygen supplement multi-functional cabin applicable to underground space use in the embodiment of the present invention is used in combination.

[0036] In the figure:

[0037] 1 - Pressurized life-saving cabin; 1.1 - Cabin body; 1.2 - Escape shaft interface; 1.3 - Pressure-bearing airtight door; 1.4 - Pressure-bearing wall, 1.5 - Non-pressure-bearing door; 1.6 - Non-pressure-bearing wall; 1.7 - Gravity water chamber; 1.8 - Sewage chamber;

[0038] 2 - Escape shaft; 2.1 - Pipe body; 2.2 - Hot water main pipe; 2.3 - Cold water main pipe; 2.4 - Pressurization main pipe; 2.5 - Pressure relief main pipe; 2.6 - Ladder;

[0039] 3 - In-cabin equipment; 3.1 - Heat exchanger; 3.2 - In-cabin hot water system, 3.2.1 - In-cabin hot water main pipe, 3.2.2 - In-cabin hot water main pipe control valve; 3.3 - In-cabin cold water system; 3.4 - In-cabin pressurization system; 3.4.1 - In-cabin pressurization main pipe, 3.4.2 - In-cabin pressurization main pipe control valve, 3.4.3 - Pressurized chamber pressurization branch control valve, 3.4.4 - Transition chamber pressurization branch control valve, 3.4.5 - Pressurized chamber pressurization branch pipe, 3.4.6 - Out-of-cabin ventilation control valve, 3.4.7 - Out-of-cabin ventilation pipe; 3.5 - In-cabin pressure relief system; 3.5.1 - In-cabin pressure relief main pipe, 3.5.2 - Medical room pressure relief branch control valve, 3.5.3 - Transition chamber pressure relief branch control valve, 3.5.4 - Transition chamber pressure relief branch pipe, 3.5.5 - Medical room pressure relief branch pipe; 3.6 - Shower water system; 3.7 - Sewage disposal system; 3.8 - Reserve air system; 3.9 - Reserve air gas path, 3.9.1 - Reserve air main pipe control valve, 3.9.2 - Reserve air main pipe. Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] A multi-functional pressurized oxygen supplementation cabin suitable for use in underground spaces, as Figures 1 to 9 shown, includes a pressurized life-saving cabin 1, an escape shaft 2 and in-cabin equipment 3; the main body of the pressurized life-saving cabin 1 is a cabin body 1.1 with a double-layer shell. A gravity water chamber 1.7 is provided in the top interlayer of the cabin body 1.1, and a sewage chamber 1.8 is provided in the bottom interlayer. The inside of the cabin body 1.1 is separated into a transition chamber and a pressurized chamber by a pressure-bearing wall 1.4, and the pressurized chamber and a sanitation chamber are separated by a non-pressure-bearing wall 1.6. An escape shaft interface 1.2 is provided at the top of the pressurized chamber. Pressure-bearing airtight doors 1.3 are provided at the entrance of the transition chamber, the escape shaft interface 1.2 and the pressure-bearing wall 1.4. A non-pressure-bearing door 1.5 that can ventilate is provided on the non-pressure-bearing wall 1.6; the main body of the escape shaft 2 is a pipe body 2.1 with a double-layer shell that is docked with the escape shaft interface 1.2. A hot water main pipe 2.2, a cold water main pipe 2.3, a pressurization main pipe 2.4, a pressure relief main pipe 2.5 and a ladder 2.6 are provided inside the pipe body 2.1. The hot water main pipe 2.2 and the cold water main pipe 2.3 are connected to a heat source (such as a boiler) and a power source (such as a water pump) on the ground to form a loop. The pressurization main pipe 2.4 is connected to a high-pressure gas source on the ground (such as an air compressor, a high-pressure gas cylinder), and the pressure relief main pipe 2.5 is communicated with the outside atmosphere of the cabin; the in-cabin equipment 3 includes a heat exchanger 3.1, a shower water system 3.6, a sewage system 3.7, a reserve air system 3.8, a reserve air gas path 3.9, and an in-cabin hot water system 3.2, an in-cabin cold water system 3.3, an in-cabin pressurization system 3.4, and an in-cabin pressure relief system 3.5 that are respectively connected to the hot water main pipe 2.2, the cold water main pipe 2.3, the pressurization main pipe 2.4, and the pressure relief main pipe 2.5. The heat exchanger 3.1, the in-cabin hot water system 3.2, and the in-cabin cold water system 3.3 are connected in a loop inside the pressurized chamber to achieve temperature regulation inside the cabin. The in-cabin pressurization system 3.4 is used to control the supply of pressurized air to the pressurized chamber, the transition chamber and the outside of the cabin. The reserve air system 3.8 is connected to the in-cabin pressurization system 3.4 through the reserve air gas path 3.9 to achieve inflation or serve as a standby high-pressure gas source. The in-cabin pressure relief system 3.5 is used to control the pressure relief of the transition chamber and the sanitation chamber to the outside of the cabin. The shower water system 3.6 and the sewage system 3.7 are located in the sanitation chamber and are respectively connected to the gravity water chamber 1.7 and the sewage chamber 1.8.

[0042] As Figure 1 、 Figure 5 、 Figure 9 shown, in this embodiment, preferably, the reserve air system 3.8 adopts a reserve air bottle group and a manifold.

[0043] As Figure 4As shown, in this embodiment, preferably, the ladder 2.6 is arranged on the cold water main pipe 2.3 and the pressurization main pipe 2.4.

[0044] As Figure 6 shown, in this embodiment, preferably, the in-cabin pressurization system 3.4 includes an in-cabin pressurization main pipe 3.4.1 connected to the pressurization main pipe 2.4. One path at the outlet of the in-cabin pressurization main pipe 3.4.1 is the pressurization chamber pressurization branch pipe 3.4.5, and the other path extends into the transition chamber through the transition chamber pressurization branch pipe in a sealed manner. An out-of-cabin ventilation pipe 3.4.7 that extends out of the cabin in a sealed manner is branched and connected to the pressurization chamber pressurization branch pipe 3.4.5 or the transition chamber pressurization branch pipe. An in-cabin pressurization main pipe control valve 3.4.2, a pressurization chamber pressurization branch pipe control valve 3.4.3, a transition chamber pressurization branch pipe control valve 3.4.4, and an out-of-cabin ventilation pipe control valve 3.4.6 are respectively arranged on the in-cabin pressurization main pipe 3.4.1, the pressurization chamber pressurization branch pipe 3.4.5, the transition chamber pressurization branch pipe, and the out-of-cabin ventilation pipe 3.4.7.

[0045] As Figure 6 and Figure 9 shown, in this embodiment, preferably, the reserve air gas path 3.9 includes a reserve air main pipe 3.9.2 connected to the reserve air system 3.8. The reserve air main pipe 3.9.2 is connected to the in-cabin pressurization main pipe 3.4.1 and is located downstream of the in-cabin pressurization main pipe control valve 3.4.2. A reserve air main pipe control valve 3.9.1 is arranged on the reserve air main pipe 3.9.2.

[0046] As Figure 7 shown, in this embodiment, preferably, the in-cabin pressure relief system 3.5 includes an in-cabin pressure relief main pipe 3.5.1 connected to the pressure relief main pipe 2.5. One path at the outlet of the in-cabin pressure relief main pipe 3.5.1 extends into the transition chamber through the transition chamber pressure relief branch pipe 3.5.4 in a sealed manner, and the other path extends into the health room through the health room pressure relief branch pipe 3.5.5 in a sealed manner. A transition chamber pressure relief branch pipe control valve 3.5.3 and a health room pressure relief branch pipe control valve 3.5.2 are respectively arranged on the transition chamber pressure relief branch pipe 3.5.4 and the health room pressure relief branch pipe 3.5.5.

[0047] As Figure 8 shown, in this embodiment, preferably, the in-cabin hot water system 3.2 includes an in-cabin hot water main pipe 3.2.1 connected to the hot water main pipe 2.2. An in-cabin hot water main pipe control valve 3.2.3 is arranged on the in-cabin hot water main pipe 3.2.1.

[0048] During normal use:

[0049] The steps for entering the cabin are as follows: After personnel enter the transition room through the pressure-bearing airtight door 1.3 at the entrance of the transition room and close the pressure-bearing airtight door 1.3, pressurized air is then supplied to the transition room through the in-cabin pressurization system 3.4 (open the in-cabin pressurization main pipe control valve 3.4.2 and the transition room pressurization branch pipe control valve 3.4.4, close the pressurized room pressurization branch pipe control valve 3.4.3 and the out-of-cabin ventilation pipe control valve 3.4.6). After the air pressure in the transition room is balanced with that in the pressurized room, stop supplying pressurized air to the transition room (close the transition room pressurization branch pipe control valve 3.4.4), then enter the pressurized room through the pressure-bearing airtight door 1.3 on the pressure-bearing wall 1.4 and close the pressure-bearing airtight door 1.3. Then, supply pressurized air to the pressurized room through the in-cabin pressurization system 3.4 (open the pressurized room pressurization branch pipe control valve 3.4.3). After the pressurized room reaches the appropriate pressure, close the in-cabin pressurization system 3.4 (close the in-cabin pressurization main pipe control valve 3.4.2 and the pressurized room pressurization branch pipe control valve 3.4.3) to achieve stable pressure;

[0050] The steps for exiting the cabin are as follows: First, supply pressurized air to the transition room through the in-cabin pressurization system 3.4 (open the in-cabin pressurization main pipe control valve 3.4.2 and the transition room pressurization branch pipe control valve 3.4.4, close the pressurized room pressurization branch pipe control valve 3.4.3 and the out-of-cabin ventilation pipe control valve 3.4.6). After the air pressure in the transition room is balanced with that in the pressurized room, close the in-cabin pressurization system 3.4 (close the in-cabin pressurization main pipe control valve 3.4.2 and the transition room pressurization branch pipe control valve 3.4.4). Then, personnel enter the transition room through the pressure-bearing airtight door 1.3 on the pressure-bearing wall 1.4 from the pressurized room and close the pressure-bearing airtight door 1.3. Then, the transition room is depressurized to the outside of the cabin through the in-cabin pressure relief system 3.5 (open the transition room pressure relief branch pipe control valve 3.5.3 and close the sanitation room pressure relief branch pipe control valve 3.5.2), and personnel leave the cabin body 1.1 through the pressure-bearing airtight door 1.3 at the entrance of the transition room;

[0051] If it is necessary to reduce the carbon dioxide concentration in the cabin, pressurized air is supplied to the pressurized room through the in-cabin pressurization system 3.4 (open the in-cabin pressurization main pipe control valve 3.4.2 and the pressurized room pressurization branch pipe control valve 3.4.3, close the transition room pressurization branch pipe control valve 3.4.4 and the out-of-cabin ventilation pipe control valve 3.4.6). At the same time, the sanitation room is depressurized to the outside of the cabin through the in-cabin pressure relief system 3.5 (open the sanitation room pressure relief branch pipe control valve 3.5.2 and close the transition room pressure relief branch pipe control valve 3.5.3) to achieve pressure maintenance and air exchange in the cabin;

[0052] If it is necessary to ventilate the out-of-cabin area of the underground space, pressurized air is supplied to the outside of the cabin through the in-cabin pressurization system 3.4 (open the in-cabin pressurization main pipe control valve 3.4.2 and the out-of-cabin ventilation pipe control valve 3.4.6, close the pressurized room pressurization branch pipe control valve 3.4.3 and the transition room pressurization branch pipe control valve 3.4.4), serving as the ventilation air source for the underground space (not limited to underground construction areas such as mines and pipe tunnels);

[0053] If it is necessary to inflate the reserve air system 3.8, increase the high-pressure gas source pressure, and at the same time, make the high-pressure gas source flow only to the reserve air system 3.8 through the cabin pressurization system 3.4 and the reserve air pipeline 3.9 (open the control valve 3.4.2 of the cabin pressurization main pipeline and the control valve 3.9.1 of the reserve air main pipeline, and close the control valve 3.4.3 of the pressurized chamber branch pipeline, the control valve 3.4.4 of the transition chamber branch pipeline, and the control valve 3.4.6 of the external ventilation pipe).

[0054] In case of emergency:

[0055] Personnel directly enter the transition chamber through the pressure-bearing airtight door 1.3 at the entrance of the transition chamber and close the pressure-bearing airtight door 1.3, then directly enter the pressurized chamber through the pressure-bearing airtight door 1.3 on the pressure-bearing wall 1.4 and close the pressure-bearing airtight door 1.3, and then supply pressurized air to the pressurized chamber through the cabin pressurization system 3.4 (open the control valve 3.4.3 of the pressurized chamber branch pipeline) to enhance the anti-destruction ability of the cabin body 1.1; after the external damage situation (not limited to explosion, collapse, etc.) is stable, slowly relieve the pressure through the cabin pressure relief system 3.5, and personnel enter the escape pipe well 2 through the pressure-bearing airtight door 1.3 at the interface of the escape pipe well 1.2, and then use the ladder 2.6 to reach the ground directly;

[0056] If the escape pipe well 2 is damaged and cannot allow personnel to pass through, then use the escape pipe well 2 as a speaking tube;

[0057] If the escape pipe well 2 is damaged and cannot allow personnel to pass through, and the pressurization main pipeline 2.4 or the high-pressure gas source on the ground fails, then the reserve air system 3.8 is used as a standby high-pressure gas source, supply gas to the cabin pressurization system 3.4 through the reserve air pipeline 3.9, and supply pressurized air to the pressurized chamber through the cabin pressurization system 3.4 (open the control valve 3.4.3 of the pressurized chamber branch pipeline) to provide a good cabin environment.

[0058] As Figure 10 shown, when the underground space area is large or the distance is long, several pressurization and oxygen supplementation multi-functional cabins suitable for underground space use are used in combination, and each escape pipe well 2 converges to a closed escape passage.

[0059] The present invention can be used as a rest cabin during normal use, providing an environment with appropriate oxygen content, carbon dioxide content, and temperature for personnel, while solving the hygiene requirements. It can also be used as a refuge cabin in case of emergency to achieve effective refuge and rapid evacuation. When the external environment does not allow evacuation, it can supplement the air in the cabin and can also be used as a ventilation air source for underground spaces, overall improving the safety of underground operations and the utilization rate of facilities, and streamlining the underground pipe network system. Both the cabin body 1.1 and the pipe body 2.1 adopt double-layer shells, having a certain anti-destruction ability to ensure the normal operation of the internal equipment of each. The pressure-bearing airtight door 1.3 realizes different pressure zones inside the cabin body 1.1. The gravity water chamber 1.7 ensures the normal water demand of the shower water system 3.6 without energy supply, and the sewage chamber 1.8 ensures the collection of wastewater from the sewage disposal system 3.7 without energy supply, ensuring the environmental hygiene inside the cabin. The hot water main pipe 2.2, the cold water main pipe 2.3, the heat exchanger 3.1, the in-cabin hot water system 3.2, and the in-cabin cold water system 3.3 form a set of circulating heating equipment to ensure the temperature adjustment inside the cabin. The hygiene room can release pressure to the outside of the cabin, ensuring that the air flow inside the cabin flows from the area without odor to the area with odor, which is beneficial to the cabin environment.

[0060] It should be understood that those of ordinary skill in the art can make improvements or transformations according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. A pressurized oxygen supplement multi-functional cabin suitable for underground space use, characterized in that: It includes a pressurized life-saving capsule (1), an escape shaft (2) and in-capsule equipment (3); the main body of the pressurized life-saving capsule (1) is a capsule body (1.1) with a double-layer shell. A gravity water chamber (1.7) is provided in the top sandwich of the capsule body (1.1), and a sewage chamber (1.8) is provided in the bottom sandwich. The inside of the capsule body (1.1) is divided into a transition chamber and a pressurized chamber by a pressure-bearing wall (1.4), and the pressurized chamber and the sanitary chamber are divided by a non-pressure-bearing wall (1.6). An escape shaft interface (1.2) is provided at the top of the pressurized chamber. Pressure-bearing airtight doors (1.3) are provided at the entrance of the transition chamber, the escape shaft interface (1.2) and the pressure-bearing wall (1.4). A non-pressure-bearing door (1.5) that can ventilate is provided on the non-pressure-bearing wall (1.6); the main body of the escape shaft (2) is a pipe body (2.1) with a double-layer shell that is docked with the escape shaft interface (1.2). A hot water main pipe (2.2), a cold water main pipe (2.3), a pressurization main pipe (2.4), a pressure relief main pipe (2.5) and a ladder (2.6) are provided inside the pipe body (2.1). The hot water main pipe (2.2) and the cold water main pipe (2.3) are connected to a heat source and a power source on the ground to form a loop. The pressurization main pipe (2.4) is connected to a high-pressure air source on the ground, and the pressure relief main pipe (2.5) is communicated with the outside atmosphere of the capsule; the in-capsule equipment (3) includes a heat exchanger (3.1), a shower water system (3.6), a sewage disposal system (3.7), a reserve air system (3.8), a reserve air pipeline (3.9), and an in-capsule hot water system (3.2), an in-capsule cold water system (3.3), an in-capsule pressurization system (3.4), and an in-capsule pressure relief system (3.5) that are respectively connected to the hot water main pipe (2.2), the cold water main pipe (2.3), the pressurization main pipe (2.4), and the pressure relief main pipe (2.5). The heat exchanger (3.1), the in-capsule hot water system (3.2), and the in-capsule cold water system (3.3) are connected in a loop inside the pressurized chamber to realize temperature adjustment inside the capsule. The in-capsule pressurization system (3.4) is used to control the supply of pressurized air to the pressurized chamber, the transition chamber and the outside of the capsule. The reserve air system (3.8) is connected to the in-capsule pressurization system (3.4) through the reserve air pipeline (3.9) to realize inflation or serve as a standby high-pressure air source. The in-capsule pressure relief system (3.5) is used to control the pressure relief of the transition chamber and the sanitary chamber to the outside of the capsule. The shower water system (3.6) and the sewage disposal system (3.7) are located in the sanitary chamber and are respectively connected to the gravity water chamber (1.7) and the sewage chamber (1.8); The in-cabin pressurization system (3.4) includes an in-cabin pressurization main pipe (3.4.1) connected to the pressurization main pipe (2.4). One path at the outlet of the in-cabin pressurization main pipe (3.4.1) is the pressurization chamber pressurization branch pipe (3.4.5), and the other path extends into the transition chamber through the transition chamber pressurization branch pipe in a sealed manner. An out-of-cabin ventilation pipe (3.4.7) that extends out of the cabin in a sealed manner is connected in parallel to the pressurization chamber pressurization branch pipe (3.4.5) or the transition chamber pressurization branch pipe. An in-cabin pressurization main pipe control valve (3.4.2), a pressurization chamber pressurization branch pipe control valve (3.4.3), a transition chamber pressurization branch pipe control valve (3.4.4), and an out-of-cabin ventilation pipe control valve (3.4.6) are respectively provided on the in-cabin pressurization main pipe (3.4.1), the pressurization chamber pressurization branch pipe (3.4.5), the transition chamber pressurization branch pipe, and the out-of-cabin ventilation pipe (3.4.7); The reserve air gas path (3.9) includes a reserve air main pipe (3.9.2) connected to the reserve air system (3.8). The reserve air main pipe (3.9.2) is connected to the in-cabin pressurization main pipe (3.4.1) and is located downstream of the in-cabin pressurization main pipe control valve ( 3.4.2). A reserve air main pipe control valve (3.9.1) is provided on the reserve air main pipe (3.9.2).

2. The pressurized oxygen supplementation multifunctional cabin applicable to underground space use according to claim 1, wherein: The in-cabin pressure relief system (3.5) includes an in-cabin pressure relief main pipe (3.5.1) connected to the pressure relief main pipe (2.5). One path at the outlet of the in-cabin pressure relief main pipe (3.5.1) extends into the transition chamber through the transition chamber pressure relief branch pipe (3.5.4) in a sealed manner, and the other path extends into the health room through the health room pressure relief branch pipe (3.5.5) in a sealed manner. A transition chamber pressure relief branch pipe control valve (3.5.3) and a health room pressure relief branch pipe control valve (3.5.2) are respectively provided on the transition chamber pressure relief branch pipe (3.5.4) and the health room pressure relief branch pipe (3.5.5).

3. The pressurized oxygen supply multi-functional cabin applicable to underground space use according to claim 1, characterized in that: The in-cabin hot water system (3.2) includes an in-cabin hot water main pipe ( 3.2.1) connected to the hot water main pipe (2.2). An in-cabin hot water main pipe control valve (3.2.3) is provided on the in-cabin hot water main pipe (3.2.1).

4. The pressurized oxygen supplement multi-functional cabin applicable to underground space use according to claim 1, wherein: The ladder (2.6) is arranged on the cold water main pipe (2.3) and the pressurization main pipe (2.4).

5. The pressurized oxygen supplementation multifunctional cabin applicable to underground space use according to claim 1, characterized in that: The reserve air system (3.8) uses a reserve air bottle group and a manifold.

6. The multi-functional pressurized oxygen supplementation cabin applicable to underground space use according to any one of claims 1 to 5, characterized in that: During normal use, The steps to enter the cabin are as follows: After personnel enter the transition chamber through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber, they close the pressure-bearing airtight door (1.3). Then, pressurized air is supplied to the transition chamber through the in-cabin pressurization system (3.4). After the air pressure in the transition chamber is balanced with that in the pressurization chamber, the supply of pressurized air to the transition chamber is stopped. Then, they enter the pressurization chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) and close the pressure-bearing airtight door (1.3). Then, pressurized air is supplied to the pressurization chamber through the in-cabin pressurization system (3.4). After the pressurization chamber reaches an appropriate pressure, the in-cabin pressurization system (3.4) is closed to achieve stable pressure; The procedure for exiting the cabin is as follows: First, pressurized air is conveyed to the transition chamber through the in-cabin pressurization system (3.4). After the air pressure in the transition chamber is balanced with that in the pressurized chamber, the in-cabin pressurization system (3.4) is closed. Then, personnel enter the transition chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) from the pressurized chamber and close the pressure-bearing airtight door (1.3). Subsequently, the transition chamber is depressurized to the outside of the cabin through the in-cabin depressurization system (3.5), and personnel leave the cabin body (1.1) through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber. If it is necessary to reduce the carbon dioxide concentration in the cabin, pressurized air is conveyed to the pressurized chamber through the in-cabin pressurization system (3.4), and at the same time, the sanitation chamber is depressurized to the outside of the cabin through the in-cabin depressurization system (3.5) to achieve pressure maintenance and air exchange in the cabin. If it is necessary to ventilate the area outside the cabin in the underground space, pressurized air is conveyed to the outside of the cabin through the in-cabin pressurization system (3.4) as the ventilation air source for the underground space. If it is necessary to inflate the reserve air system (3.8), the pressure of the high-pressure air source is increased, and at the same time, the high-pressure air source only flows to the reserve air system (3.8) through the in-cabin pressurization system (3.4) and the reserve air pipeline (3.9).

7. The pressurized oxygen supplement multi-functional cabin applicable to underground space use according to any one of claims 1 to 5, characterized in that: In case of emergency, Personnel directly enter the transition chamber through the pressure-bearing airtight door (1.3) at the entrance of the transition chamber and close the pressure-bearing airtight door (1.3). Then, they directly enter the pressurized chamber through the pressure-bearing airtight door (1.3) on the pressure-bearing wall (1.4) and close the pressure-bearing airtight door (1.3). Subsequently, pressurized air is conveyed to the pressurized chamber through the in-cabin pressurization system (3.4) to enhance the anti-destruction ability of the cabin body (1.1). After the external destruction situation stabilizes, the pressure is slowly released through the in-cabin depressurization system (3.5), and personnel enter the escape shaft (2) through the pressure-bearing airtight door (1.3) at the escape shaft interface (1.2), and then use the ladder (2.6) to reach the ground directly. If the escape shaft (2) is damaged and cannot allow personnel to pass through, the escape shaft (2) is used as a speaking tube. If the escape shaft (2) is damaged and cannot allow personnel to pass through, and the pressurized main pipe (2.4) or the high-pressure air source on the ground fails, the reserve air system (3.8) serves as a backup high-pressure air source, supplies air to the in-cabin pressurization system (3.4) through the reserve air pipeline (3.9), and conveys pressurized air to the pressurized chamber through the in-cabin pressurization system (3.4) to provide a good in-cabin environment.

8. The pressurized oxygen supplementation multifunctional cabin applicable to underground space use according to any one of claims 1 to 5, characterized in that: When the area or length of the underground space is large, several pressurization and oxygen supplementation multi-functional cabins suitable for use in the underground space are used in combination, and each escape shaft (2) converges to a closed escape passage.

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