Pressurizing building capable of meeting dual requirements of fresh air and oxygen supply and control method of pressurizing building

Abstract

The invention relates to the technical field of pressurizing buildings, in particular to a pressurizing building meeting the dual requirements of fresh air and oxygen supply and a control method thereof, and the pressurizing building comprises a main body cabin, an oxygen supply system, a pressurizing fresh air system and a noise reduction assembly; the main body cabin comprises a frame, an endurance plate and pressure-bearing composite cloth which are detachably connected, and the endurance plate and the pressure-bearing composite cloth are arranged on the frame; the oxygen supply system is connected with the main body cabin; the pressurizing fresh air system comprises a pressurizing fan and air conditioner all-in-one machine, an air inlet assembly and an air exhaust assembly, the air inlet assembly and the air exhaust assembly are arranged on the main body cabin, and the pressurizing fan and air conditioner all-in-one machine is connected with the air inlet assembly; the noise reduction assembly is connected with the pressurizing fresh air system. According to the pressurizing building, the oxygen supply system and the pressurizing fresh air system are integrated, the dual requirements of the fresh air volume and oxygen supply are met, the pressurizing building can be used for a long time, and harm of the plateau environment to human bodies is relieved; the integration level is high, and compared with two independent products, the cost is lower.

Description

Technical Field

[0001] This invention relates to the field of pressurized building technology, specifically to a pressurized building and its control method that meet the dual requirements of fresh air and oxygen supply. Background Technology

[0002] The harsh natural environment of high-altitude areas, characterized by dryness, extreme cold, hypoxia, and strong radiation, has serious adverse effects on the local people. People arriving at low altitudes often experience severe altitude sickness; the low pressure and hypoxia at high altitudes have a significant impact on long-term residents or those working at high altitudes, causing changes in heart rate and blood oxygen saturation, affecting sleep quality, increasing the risk of cardiovascular and cerebrovascular diseases, memory loss, and difficulty concentrating.

[0003] To mitigate the harmful effects of high altitude on the human body, prolonged exposure to high-altitude areas necessitates the use of pressurization products (such as pressurized oxygen-enriched structures) and oxygen-enriching products (such as oxygen chambers). However, existing pressurization products only lower the equivalent altitude by increasing pressure but do not integrate oxygen supply, thus failing to address the oxygen deficiency problem; oxygen-enriching products only increase oxygen concentration but cannot improve the low-pressure environment. Both types of products must be purchased and used separately, resulting in high costs and cumbersome operation, thus presenting certain limitations.

[0004] In summary, there is an urgent need to provide a pressurized building and its control method that meet the dual requirements of fresh air and oxygen supply, in order to solve the technical problems existing in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a pressurized building and its control method that meet the dual requirements of fresh air and oxygen supply, so as to solve the technical problems existing in the prior art. The specific technical solution is as follows: A pressurized building that meets the dual needs of fresh air and oxygen supply includes a main cabin, an oxygen supply system, a pressurized fresh air system, and noise reduction components; The main compartment includes a detachably connected frame, a polycarbonate sheet, and a pressure-bearing composite fabric, with the polycarbonate sheet and the pressure-bearing composite fabric disposed on the frame; The oxygen supply system is connected to the main cabin. The pressurized fresh air system includes a pressurized fan and air conditioner integrated unit, an air intake component and an exhaust component. The air intake component and exhaust component are installed on the main compartment, and the pressurized fan and air conditioner integrated unit are connected to the air intake component. The noise reduction component is connected to the pressurized fresh air system.

[0006] Furthermore, the frame includes a square aluminum alloy frame; the polycarbonate sheet includes a solid PC polycarbonate sheet; the pressure-bearing composite fabric includes a polyethylene fiber fabric layer and a thermoplastic polyurethane coating, wherein the thermoplastic polyurethane coating is applied to the surface of the polyethylene fiber fabric layer. The endurance board is installed on the four sides of the frame, and the pressure-bearing composite fabric is installed on the top and bottom surfaces of the frame.

[0007] Furthermore, the oxygen supply system includes an oxygen generator, which is connected to the interior of the main cabin via a pipeline.

[0008] Furthermore, the integrated unit of booster fan and air conditioner includes a booster fan and an outdoor air conditioner unit. A soundproof box is provided at the outlet of the booster fan, and the air conditioning pipes connected to the outdoor air conditioner unit are installed inside the soundproof box.

[0009] Furthermore, the noise reduction component includes a multi-stage muffler one and a multi-stage muffler two; The multi-stage muffler includes a soundproof box and multiple sets of intake pipe mufflers, wherein the intake pipe mufflers are connected to the intake assembly. The multi-stage muffler includes multiple sets of exhaust pipe mufflers, which are connected to the exhaust assembly. The intake pipe muffler and exhaust pipe muffler include at least two of the following: DN80 pipe muffler, DN140 pipe muffler, and box-shaped muffler.

[0010] Furthermore, the pressurized fresh air system also includes an automatic pressure relief component and a manual emergency pressure relief component, both of which are located on the main cabin.

[0011] Furthermore, it also includes a control system connected to the oxygen supply system and the pressurized fresh air system; the control system includes a mode control panel located in the main cabin, which is used to control the operation of the oxygen supply system and the pressurized fresh air system according to the selected mode.

[0012] A control method for a pressurized building that meets both fresh air and oxygen supply requirements as described above includes the following steps: Users select the operating mode and issue operating mode commands through the mode control panel. The operating mode commands include leisure sleep mode, oxygen therapy mode, and oxygenation mode. The control system controls the operation of the oxygen supply system and the pressurized fresh air system according to the operating mode instructions, so as to adjust at least one of the parameters of equivalent altitude, oxygen concentration, carbon dioxide concentration and fresh air volume in the main cabin.

[0013] Furthermore, when the operating mode is leisure sleep mode, the control system controls the pressurized fresh air system to ensure that the equivalent altitude inside the main cabin is ≤2500m and the fresh air volume is ≥20m³. 3 / ph, CO2 concentration ≤1000ppm; When the operating mode is oxygen therapy mode, the control system controls the pressurized fresh air system to operate until the equivalent altitude in the main cabin is ≤2000m and then stops operating; the control system controls the oxygen supply system to keep the oxygen concentration in the main cabin between 24% and 30%; after the preset time is reached, it automatically switches to leisure sleep mode or exits the cabin. When the operating mode is oxygenation mode, the control system controls the pressurized fresh air system and the oxygen supply system to operate simultaneously, ensuring that the equivalent altitude inside the cabin is ≤2500m and the fresh air volume is ≥20m³. 3 / ph, oxygen concentration maintained between 23% and 25%, CO2 concentration ≤1000ppm.

[0014] Furthermore, when switching from oxygen therapy mode to relaxation sleep mode, the relationship between the amount of fresh air introduced and the oxygen concentration is as follows: ; in: Indicates mode switching t The oxygen concentration in the cabin after minutes; Indicates the oxygen concentration inside the cabin at the initial stage of mode switching; This indicates the amount of fresh air introduced during the mode switching phase; This refers to the effective volume inside the cabin.

[0015] Furthermore, during the operation of the pressurized fresh air system, the power of the booster fan in the system is controlled. P This is determined through the following relationship: ; in: Indicates the altitude correction factor; This refers to the actual altitude. For the target equivalent altitude For fresh air volume, To improve the integration efficiency of the booster fan and air conditioning unit.

[0016] The application of the technical solution of the present invention has the following beneficial effects: (1) This invention provides a pressurized building that meets the dual needs of fresh air and oxygen supply, including a main cabin, an oxygen supply system, a pressurized fresh air system, and noise reduction components; the main cabin includes a detachably connected frame, a polycarbonate sheet, and a pressure-bearing composite fabric, the polycarbonate sheet and the pressure-bearing composite fabric being disposed on the frame; the oxygen supply system is connected to the main cabin; the pressurized fresh air system includes a pressurized fan and an integrated air conditioning unit, an air intake component, and an exhaust component, the air intake component and the exhaust component being disposed on the main cabin, the pressurized fan and the integrated air conditioning unit being connected to the air intake component; the noise reduction components are connected to the pressurized fresh air system. The pressurized building provided by this invention integrates an oxygen supply system and a pressurized fresh air system, meeting the dual needs of fresh air volume and oxygen supply, and can be used for a long time, alleviating the harm of the high-altitude environment to the human body; it has a high degree of integration and is less expensive than using pressurized products and oxygenation products separately.

[0017] (2) In this invention, the main compartment includes a detachable frame, a polycarbonate sheet and a pressure-bearing composite fabric, which is easy to assemble and disassemble, lightweight and easy to transport.

[0018] (3) In this invention, the noise reduction component includes a multi-stage silencer one and a multi-stage silencer two. By setting up multi-stage silencers, noise reduction is achieved to meet the needs of sleep, office work and other low noise requirements.

[0019] (4) In this invention, the booster fan and the air conditioner outdoor unit are integrated into one unit, which reduces the occupancy rate of the cabin space; a soundproof box is provided at the outlet of the booster fan, and the air conditioning pipe connected to the air conditioner outdoor unit is set in the soundproof box. The temperature of the soundproof box is controlled by the air conditioning pipe, thereby realizing the temperature regulation of the compressed air output by the booster fan, and thus realizing the temperature regulation of the cabin; in addition, the booster fan can be cooled by adjusting the temperature inside the soundproof box.

[0020] (5) The pressurized building provided by the present invention can provide a variety of different operating modes to meet the different needs of users. It has strong applicability and high flexibility.

[0021] (6) In this invention, when switching from oxygen therapy mode to leisure sleep mode, a formula relating fresh air intake to oxygen concentration is introduced. Based on the preset oxygen decay rate and the oxygen concentration in the cabin at the initial time of mode switching, the mode switching can be calculated. t After a few minutes, the oxygen concentration in the cabin is determined, which in turn determines the amount of fresh air to be introduced, thus avoiding excessive fluctuations in oxygen concentration during mode switching that could cause physical discomfort.

[0022] (7) In this invention, the power of the booster fan is determined by the formula relating the power of the booster fan to the equivalent altitude and the fresh air volume, so as to achieve low energy consumption operation while meeting the requirements of fresh air volume and equivalent altitude.

[0023] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the pressurized building in this invention; Figure 2 This is a schematic diagram of the main compartment structure in this invention; Among them, 1. Main cabin, 1.1 Frame, 1.2 Polycarbonate sheet, 1.3 Pressure-bearing composite fabric, 2. Oxygen supply system, 3. Pressurized fresh air system, 3.1 Pressurized fan and air conditioning unit, 3.2 Air intake assembly, 3.3 Exhaust assembly, 3.4 Automatic pressure relief assembly, 3.5 Manual emergency pressure relief assembly, 4. Noise reduction assembly, 4.1 Air intake duct silencer, 4.2 Exhaust duct silencer. Detailed Implementation

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] Example: See Figure 1 The present invention provides a pressurized building that meets the dual requirements of fresh air and oxygen supply, including a main cabin 1, an oxygen supply system 2, a pressurized fresh air system 3, and a noise reduction component 4; See Figure 2The main compartment 1 includes a detachably connected frame 1.1 (preferably made of metal), a polycarbonate sheet 1.2, and a pressure-bearing composite fabric 1.3. The polycarbonate sheet 1.2 and the pressure-bearing composite fabric 1.3 are disposed on the frame 1.1. In this embodiment, the frame 1.1 includes a square aluminum alloy frame; the polycarbonate sheet 1.2 includes a solid PC polycarbonate sheet; the pressure-bearing composite fabric 1.3 includes a polyethylene fiber fabric layer and a thermoplastic polyurethane coating, wherein the thermoplastic polyurethane coating is applied to the surface of the polyethylene fiber fabric layer. To consider permeability and reduce product weight, in this embodiment, the polycarbonate sheet 1.2 is disposed on the four sides of the frame and is sealed to the frame (one of the four sides is provided with a door for personnel to enter and exit), and the pressure-bearing composite fabric 1.3 is disposed on the top and bottom surfaces of the frame 1.1 and is sealed to the frame 1.1.

[0029] The oxygen supply system 2 is connected to the main compartment 1; the oxygen supply system 2 includes an oxygen generator (using a 10L swing piston oil-free compressor), the oxygen generator is connected to the interior of the main compartment 1 through a pipe, specifically, the top of the main compartment 1 is provided with an oxygen supply system terminal block, the terminal block is reserved with access pipes for oxygen and equipment control lines, the oxygen generator inputs oxygen into the main compartment 1 through the oxygen access pipe, and the oxygen access pipe is provided with an oxygen supply valve.

[0030] The pressurized fresh air system 3 includes a pressurized fan and air conditioner integrated unit 3.1, an air intake component 3.2, and an exhaust component 3.3. The air intake component 3.2 and the exhaust component 3.3 are installed on the main compartment 1. The pressurized fan and air conditioner integrated unit 3.1 is connected to the air intake component 3.2. In this embodiment, the integrated booster fan and air conditioner unit 3.1 includes a booster fan and an outdoor air conditioner unit. A soundproof enclosure is provided at the outlet of the booster fan, and the air conditioning pipes connected to the outdoor air conditioner unit are located inside the soundproof enclosure. When the booster fan is running, compressed air passes through the soundproof enclosure. Since the air conditioning pipes are located inside the soundproof enclosure, the compressed air undergoes heating / cooling within the enclosure before entering the main compartment 1 to regulate the temperature inside the compartment. The application of the integrated booster fan and air conditioner unit eliminates the need for an indoor air conditioner unit in the main compartment 1, saving space. Furthermore, by controlling the temperature inside the soundproof enclosure, the temperature inside the integrated unit can be regulated, thereby cooling the booster fan. The air intake assembly 3.2 includes an air intake pipe installed on the main compartment 1 and connecting the inside and outside of the compartment; the exhaust assembly 3.3 includes an exhaust pipe installed on the main compartment 1 and connecting the inside and outside of the compartment. Preferably, an exhaust fan is installed on the exhaust pipe for quickly discharging the gas inside the compartment.

[0031] Preferably, in this embodiment, the pressurized fresh air system 3 further includes an automatic pressure relief component 3.4 and a manual emergency pressure relief component 3.5, both of which are mounted on the main compartment 1. The automatic pressure relief component 3.4 includes an exhaust pipe, an electric pressure relief valve, and a pressure gauge. The electric pressure relief valve is connected to the exhaust pipe. When the pressure gauge detects that the pressure inside the compartment exceeds a set value, the electric pressure relief valve opens to release pressure. The manual emergency pressure relief component 3.5 includes an exhaust pipe and a manual pressure relief valve. The manual pressure relief valve is connected to the exhaust pipe. In case of an emergency, the manual pressure relief valve can be opened for rapid pressure relief.

[0032] The noise reduction component 4 is connected to the pressurized fresh air system 3. In this embodiment, the noise reduction component 4 includes a multi-stage silencer one and a multi-stage silencer two; the multi-stage silencer one includes a soundproof box and multiple sets of intake pipe silencers 4.1, the soundproof box is located at the outlet of the pressurized fan, and the intake pipe silencers 4.1 are connected to the intake pipe of the intake component 3.2; the multi-stage silencer two includes multiple sets of exhaust pipe silencers 4.2, and the exhaust pipe silencers 4.2 are connected to the exhaust pipe of the exhaust component 3.3; Preferably, the intake duct muffler 4.1 and the exhaust duct muffler 4.2 include at least two of the following: a DN80 duct muffler, a DN140 duct muffler, and a box-shaped muffler. In this embodiment, the intake duct muffler 4.1 includes a DN80 duct muffler (located outside the cabin) and a DN140 duct muffler (located inside the cabin), and the exhaust duct muffler 4.2 includes a box-shaped muffler (located inside the cabin) and a DN80 duct muffler and a DN140 duct muffler (located outside the cabin) connected in series. The synergistic noise reduction effect of a multi-stage silencer is shown in the following formula: ; in: This indicates the total noise reduction (dB). Indicates the first The noise reduction of the silencers is as follows: in this embodiment, the noise reduction of the DN80 pipe silencer is 15dB, the noise reduction of the DN140 pipe silencer is 20dB, and the noise reduction of the box silencer is 18dB. This indicates the number of muffler stages (corresponding to the number of mufflers). The above formula can be used to determine the number of mufflers needed to meet noise reduction requirements.

[0033] It also includes a control system, which is connected to the oxygen supply system 2 and the pressurized fresh air system 3; the control system includes a mode control panel located in the main cabin 1, which is used to control the operation of the oxygen supply system 2 and the pressurized fresh air system 3 according to the selected mode.

[0034] This embodiment also includes a detection component, which comprises a pressure sensor, an air quality sensor, and a flow meter. The pressure sensor and air quality sensor are installed inside the main chamber 1. The pressure sensor is used to detect the air pressure inside the main chamber 1, and the air quality sensor is used to detect the concentration of oxygen or carbon dioxide inside the main chamber 1. The flow meter is installed in the air intake pipe and is used to detect the fresh air volume. The detection component is connected to the control system, and the control system controls the oxygen supply system 2 and the pressurized fresh air system 3 to perform corresponding actions based on the detection data fed back by the detection component.

[0035] This invention provides a control method for a pressurized building as described above, comprising the following steps: Users select the operating mode and issue operating mode commands through the mode control panel. The operating modes include leisure sleep mode, oxygen therapy mode and oxygenation mode. The control system controls the operation of the oxygen supply system 2 and the pressurized fresh air system 3 according to the operation mode command, so as to adjust at least one of the parameters of equivalent altitude, oxygen concentration, carbon dioxide concentration and fresh air volume in the main cabin 1.

[0036] When the operating mode is leisure sleep mode, the control system controls the pressurized fresh air system 3 to operate, ensuring that the equivalent altitude inside the main cabin 1 is ≤2500m and the fresh air volume is ≥20m³. 3 / ph, CO2 concentration ≤1000ppm; In this mode, only the pressurized fresh air system 3 operates, pressurizing the cabin according to the set pressure to reduce the equivalent altitude inside the cabin to 2500m or below. The relationship between the air pressure inside the cabin and the equivalent altitude can be calculated using the following formula: ; in: Altitude (meters); The air pressure at the desired altitude (Pascals); The standard atmospheric pressure at sea level is usually taken as 101325 Pascals. The standard temperature at sea level is generally taken as 288.15 Kelvin. The vertical temperature lapse rate is typically taken as 0.0065 Kelvin / meter. The gas constant for dry air is approximately 287.05 joules per kilogram. Kelvin); The acceleration due to gravity is approximately 9.80665 m / s². 2 ; The relaxation sleep mode primarily uses a booster fan to pressurize the cabin, creating an equivalent space at low altitudes to prevent insomnia caused by high-altitude environments. Through the coordinated operation of the flow meter and the booster fan, it provides the required fresh air volume (≥20m³) to meet the body's needs for relaxation sleep. 3The carbon dioxide concentration is controlled to ≤1000ppm by adjusting the air quality sensor and the opening angle of the oxygen supply valve, thereby providing a comfortable and relaxing sleeping space.

[0037] When the operating mode is oxygen therapy mode, the control system controls the pressurized fresh air system 3 to operate until the equivalent altitude in the main cabin 1 is ≤2000m and then stops operating; the control system controls the oxygen supply system 2 to operate, so that the oxygen concentration in the main cabin 1 is controlled between 24% and 30% and the CO2 concentration is ≤5000ppm; after the preset time is reached (such as 1-2 hours), it automatically switches to leisure sleep mode or exits the cabin. This mode primarily controls the concentration of oxygen and carbon dioxide by adjusting the opening angle of the oxygen supply valve. When the carbon dioxide concentration approaches the control value, the booster fan is activated to increase the fresh air volume and reduce the carbon dioxide concentration; when the oxygen concentration approaches the control value, the oxygen supply is reduced. The relationship between the oxygen supply and the oxygen concentration inside the cabin is as follows: ; in: This refers to the oxygen concentration inside the cabin. It is the amount of oxygen supplied into the cabin by the oxygen generator per unit time. It is the amount of oxygen consumed by the human body through respiration per unit of time; It is the total volume of gas inside the cabin per unit time.

[0038] When switching from oxygen therapy mode to relaxation sleep mode, it is necessary to control the rate of oxygen decay to avoid excessive fluctuations in oxygen concentration that could cause discomfort. The relationship between the amount of fresh air introduced and the oxygen concentration is as follows: ; in: Indicates mode switching t The oxygen concentration in the cabin after minutes; Indicates the oxygen concentration inside the cabin at the initial stage of mode switching; This indicates the amount of fresh air introduced during the mode switching phase; The effective volume inside the cabin; Based on the set oxygen decay rate, in Given the information, the mode switching can be calculated. t Minutes later, the oxygen concentration in the cabin This allows us to determine the amount of fresh air introduced, and by controlling the amount of fresh air introduced, we can avoid excessive fluctuations in oxygen concentration that could cause discomfort to the human body.

[0039] When the operating mode is oxygenation mode, the control system controls the pressurized fresh air system 3 and the oxygen supply system 2 to operate simultaneously, ensuring that the equivalent altitude inside the cabin is ≤2500m and the fresh air volume is ≥20m³. 3The oxygen concentration is maintained between 23% and 25% at pH / , and the CO2 concentration is ≤1000ppm. The formula for calculating the oxygen concentration inside the chamber is as follows: ; in: It refers to the oxygen concentration inside the cabin; It is the amount of oxygen supplied into the cabin by the oxygen generator per unit time. This refers to the amount of oxygen brought into the chamber from the outside by the booster fan per unit time. This amount of oxygen depends on the ventilation volume of the booster fan and the oxygen content in the outside air. Typically, the oxygen content in the outside air is approximately 21%. If the ventilation volume of the booster fan is... (Unit: L / min), then ; This is the amount of oxygen discharged from the chamber by the booster fan per unit time. It is related to the oxygen concentration inside the chamber and the ventilation volume of the booster fan, and can be expressed as... It should be noted that in actual calculations, because... Since it is an unknown quantity to be solved, this is an iterative calculation process. Usually, an initial value is assumed first. The value is calculated, and then iteratively approximated to the true value. It is the amount of oxygen consumed by the human body per unit time through respiration, and it is related to the number of people in the cabin and their activity level. If there are... On average, each person consumes oxygen per minute. milliliters, then ; It is the total volume of gas inside the chamber per unit time, assuming the booster fan and oxygen generator are operating simultaneously and no other gas is generated or consumed inside the chamber. .

[0040] The oxygenation mode primarily provides an oxygen-rich daily living environment, with an oxygen concentration 2%-4% higher than the external environment.

[0041] In this embodiment, the power of the booster fan in the booster fresh air system 3 is controlled during operation. P This is determined through the following relationship: ; in: This represents the altitude correction factor. In this invention, at an altitude of 4000m... =1.2, at 5000m =1.5; This refers to the actual altitude. The target equivalent altitude (e.g., 2000m for sleep mode). Fresh air volume (m³) 3 / h), To optimize the integration efficiency of the booster fan and air conditioning unit, the above formula can be used to determine the booster fan's power, achieving low-energy operation while meeting the requirements for fresh air volume and equivalent altitude.

[0042] The pressurized building provided by this invention features an oxygen supply system 2 and a pressurized fresh air system 3, meeting users' dual needs for fresh air volume and oxygen supply. This ensures sufficient oxygen is provided and air quality is maintained for extended periods in high-altitude environments, effectively mitigating the harmful effects of high-altitude environments on the human body. This invention offers multiple operating modes for users to choose from and can automatically adjust environmental parameters within the main cabin according to different operating modes, meeting diverse user needs and providing high flexibility.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pressurized building that meets the dual requirements of fresh air and oxygen supply, characterized in that, It includes the main cabin (1), oxygen supply system (2), pressurized fresh air system (3) and noise reduction components (4); The main compartment (1) includes a detachably connected frame (1.1), a polycarbonate sheet (1.2), and a pressure-bearing composite fabric (1.3), wherein the polycarbonate sheet (1.2) and the pressure-bearing composite fabric (1.3) are disposed on the frame (1.1); The oxygen supply system (2) is connected to the main cabin (1); The pressurized fresh air system (3) includes a pressurized fan and air conditioning unit (3.1), an air intake component (3.2) and an exhaust component (3.3). The air intake component (3.2) and the exhaust component (3.3) are installed on the main compartment (1). The pressurized fan and air conditioning unit (3.1) is connected to the air intake component (3.2). The noise reduction component (4) is connected to the pressurized fresh air system (3).

2. A pressurized building that meets both fresh air and oxygen supply requirements according to claim 1, characterized in that, The frame (1.1) includes a square aluminum alloy frame; the polycarbonate sheet (1.2) includes a solid PC polycarbonate sheet; the pressure-bearing composite fabric (1.3) includes a polyethylene fiber fabric layer and a thermoplastic polyurethane coating, wherein the thermoplastic polyurethane coating is applied to the surface of the polyethylene fiber fabric layer. The endurance board (1.2) is disposed on the four sides of the frame (1.1), and the pressure-bearing composite fabric (1.3) is disposed on the top and bottom surfaces of the frame (1.1).

3. A pressurized building that meets both fresh air and oxygen supply requirements according to claim 1, characterized in that, The oxygen supply system (2) includes an oxygen generator, which is connected to the interior of the main cabin (1) via a pipeline.

4. A pressurized building that meets both fresh air and oxygen supply requirements according to claim 1, characterized in that, The integrated unit of booster fan and air conditioner (3.1) includes a booster fan and an outdoor air conditioner unit. A soundproof box is provided at the outlet of the booster fan, and the air conditioning pipes connected to the outdoor air conditioner unit are installed inside the soundproof box.

5. A pressurized building that meets both fresh air and oxygen supply requirements according to claim 4, characterized in that, The noise reduction component (4) includes a multi-stage muffler one and a multi-stage muffler two; The multi-stage muffler includes a soundproof enclosure and multiple sets of intake pipe mufflers (4.1), wherein the intake pipe mufflers (4.1) are connected to the intake assembly (3.2); The multi-stage muffler includes multiple sets of exhaust pipe mufflers (4.2), and the exhaust pipe mufflers (4.2) are connected to the exhaust assembly (3.3); The intake pipe muffler (4.1) and exhaust pipe muffler (4.2) include at least two of the following: DN80 pipe muffler, DN140 pipe muffler, and box muffler.

6. A pressurized building that meets both fresh air and oxygen supply requirements according to claim 1, characterized in that, The pressurized fresh air system (3) also includes an automatic pressure relief component (3.4) and a manual emergency pressure relief component (3.5), both of which are located on the main cabin (1).

7. A pressurized building that meets the dual needs of fresh air and oxygen supply according to any one of claims 1-6, characterized in that, It also includes a control system, which is connected to the oxygen supply system (2) and the pressurized fresh air system (3); the control system includes a mode control panel located in the main cabin (1), which is used to control the operation of the oxygen supply system (2) and the pressurized fresh air system (3) according to the selected mode.

8. A control method for a pressurized building that meets the dual requirements of fresh air and oxygen supply as described in claim 7, characterized in that, Includes the following steps: Users select the operating mode and issue operating mode commands through the mode control panel. The operating mode commands include leisure sleep mode, oxygen therapy mode and oxygenation mode. The control system controls the operation of the oxygen supply system (2) and the pressurized fresh air system (3) according to the operation mode instructions, so as to adjust at least one of the parameters of equivalent altitude, oxygen concentration, carbon dioxide concentration and fresh air volume in the main cabin (1).

9. The control method according to claim 8, characterized in that, When the operating mode is leisure sleep mode, the control system controls the pressurized fresh air system (3) to operate, so that the equivalent altitude in the main cabin (1) is ≤2500m and the fresh air volume is ≥20m³. 3 / ph, CO2 concentration ≤1000ppm; When the operating mode is oxygen therapy mode, the control system controls the pressurized fresh air system (3) to operate until the equivalent altitude in the main cabin (1) is ≤2000m and then stops operating; the control system controls the oxygen supply system (2) to operate so that the oxygen concentration in the main cabin (1) is controlled between 24% and 30%; after the preset time is reached, it automatically switches to leisure sleep mode or exits the cabin. When the operating mode is oxygenation mode, the control system controls the pressurized fresh air system (3) and the oxygen supply system (2) to operate simultaneously, so that the equivalent altitude inside the cabin is ≤2500m and the fresh air volume is ≥20m³. 3 / ph, oxygen concentration maintained between 23% and 25%, CO2 concentration ≤1000ppm.

10. The control method according to claim 9, characterized in that, When switching from oxygen therapy mode to relaxation sleep mode, the relationship between the amount of fresh air introduced and the oxygen concentration is as follows: ； in: Indicates mode switching t The oxygen concentration in the cabin after minutes; Indicates the oxygen concentration inside the cabin at the initial stage of mode switching; This indicates the amount of fresh air introduced during the mode switching phase; This refers to the effective volume inside the cabin.

11. The control method according to claim 9, characterized in that, When the pressurized fresh air system (3) is running, the power of the booster fan in the pressurized fresh air system (3) is controlled. P This is determined through the following relationship: ； in: Indicates the altitude correction factor; This refers to the actual altitude. For the target equivalent altitude For fresh air volume, To improve the integration efficiency of the booster fan and air conditioning unit.

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