Station type dispersion oxygen supply humidification system and method for plateau oxygen-deficient dry area

Abstract

The invention belongs to the technical field of plateau oxygen-enriched environment design, and provides a station type dispersion oxygen supply and humidification system and method for a plateau oxygen-deficient and dry area, and the station type dispersion oxygen supply and humidification system comprises an oxygen generation device, a dispersion oxygen supply device and a humidification device; the oxygen supply humidifying device is arranged on the station table top and comprises an airflow mixing box body and a flow guide plate, and a horizontal flow guide plate with an adjustable angle is arranged below the air outlet. The airflow mixing box is of a rectangular structure, a first mixing area, a second mixing area, a third mixing area and a uniform pore plate are arranged in a box body, and an air outlet is a slotted air opening. Oxygen forms wet oxygen flow through the humidifying device, the wet oxygen flow is conveyed to the dispersion oxygen supply device through the oxygen supply pipeline to be evenly mixed, limited jet flow is formed through the strip seam air opening and the horizontal flow guide plate to be conveyed to the human body breathing area, and oxygen supply is completed, the structure is simple, oxygen resources are saved, and the requirement for the oxygen wet environment of the human body breathing area can be met at the same time; and the oxygen supply and humidification efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plateau oxygen-enriched environment design, and in particular relates to a station-type diffuse oxygen supply humidification system and method for plateau oxygen-deficient dry areas. Background Art

[0002] In the hypoxic and dry areas of the plateau, due to the high altitude, the oxygen content in the air is significantly reduced, the climate is dry, and the air humidity is low, which makes people prone to altitude sickness such as breathing difficulties, fatigue, headaches, insomnia, etc. in these environments, which seriously affects people's cognitive ability and reduces work efficiency. In addition, people who live or work in such environments for a long time may also face health problems such as chronic hypoxia, dry skin, and respiratory discomfort. Therefore, how to improve the air quality of the indoor human breathing zone in plateau areas and ensure the wet environment and oxygen environment in the breathing zone has become an urgent problem to be solved.

[0003] Traditional oxygen supply equipment and humidification equipment are mostly used separately, and cannot meet the requirements of continuous and stable regulation of oxygen concentration and air humidity in the human respiratory zone under plateau environment. Most of the existing oxygen supply equipment is centralized oxygen supply, and most of them adopt global diffuse oxygen supply, which has the problems of uneven oxygen distribution and low efficiency; most of the existing separate evaporative humidification equipment adopts global humidification, which cannot achieve directional humidification, and has limited effect in the low pressure and low humidity environment of the plateau area, and it is difficult to achieve long-term humidity maintenance, and the separate ultrasonic humidification equipment is easy to generate droplets, resulting in excessive local humidity and uneven indoor humidity. In addition, the portability and adaptability of traditional equipment are poor, and cannot meet the actual needs of people in multiple workstations or life scenes. Therefore, the development of a device that can collaboratively control the oxygen and humidity concentration in the human respiratory zone, while being flexible in a multi-station environment, has important application prospects. Summary of the invention

[0004] The present invention provides a station-type diffuse oxygen supply and humidification system and method for use in oxygen-deficient and dry areas of the plateau, so as to solve the technical problems existing in the prior art of uneven oxygen supply and inability to provide directional oxygen supply and humidification, resulting in low oxygen supply and humidification efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A station-type diffuse oxygen supply and humidification system for use in oxygen-deficient and dry areas of the plateau comprises an oxygen generator, a humidifier and an air flow mixing box. Both the oxygen generator and the humidifier are connected to the input port of the air flow mixing box, and the output port of the air flow mixing box performs humidification and oxygen supply.

[0006] The oxygen generator is connected to the input port of the air flow mixing box through an oxygen supply silicone pipe.

[0007] The input port of the air flow mixing box is an air inlet, which is connected to a retractable oxygen supply pipeline, and the output ports of the oxygen generator and the humidifier are both connected to the retractable oxygen supply pipeline.

[0008] The output port of the humidifying device is also equipped with a fan, and the output port of the fan is connected with the telescopic oxygen supply pipeline.

[0009] A humidifying filter element is arranged at the center of the humidifying device, a humidifying shell is installed outside the humidifying filter element, a strip air inlet is arranged on one side of the humidifying shell, a wet air outlet is arranged at the top of the humidifying device, and the wet air outlet is connected to the inlet of the fan.

[0010] The output port of the air flow mixing box is an air outlet with a slit structure, and the length-to-width ratio of the air outlet is 10:1.

[0011] A guide plate is installed at the lower side of the air outlet. The guide plate is nested and connected to the lower side of the air outlet through a rotating shaft, and the connection angle is adjusted according to actual needs.

[0012] The air flow mixing box is provided with three gas mixing areas, namely, a first mixing area, a second mixing area and a third mixing area. A uniform orifice plate is also provided between the first mixing area and the second mixing area.

[0013] The invention discloses a station-type diffuse oxygen supply and humidification method for use in oxygen-deficient and dry areas of a high plateau. The oxygen supply and humidification method comprises the following steps: an oxygen supply device and a humidification device are turned on, oxygen output by the oxygen supply device and humid air output by the humidification device are mixed evenly in an air flow mixing box to form humidified oxygen, and the humidified oxygen is output from an output port of the air flow mixing box.

[0014] Oxygen and humid air enter the first mixing zone through the air inlet of the air flow mixing box and collide with the flat plate for preliminary mixing, then enter the second mixing zone for flow equalization and air flow mixing after preliminary flow equalization through the uniform orifice plate, finally enter the third mixing zone for mixing after final flow equalization through the uniform orifice plate 11, and are finally output through the air outlet by the guide plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a station-type diffuse oxygen supply and humidification system for use in oxygen-deficient and dry areas of the plateau. By integrating an oxygen generator, a humidifier and an airflow mixing box, the system can effectively provide humidified oxygen, improve the working environment in the plateau area, and improve work efficiency and comfort. The oxygen generator, the humidifier and the airflow mixing box are integrated into one system, which simplifies the overall structure and facilitates installation and maintenance. This integrated design reduces the complexity of the system and improves the convenience and reliability of operation. The oxygen production and humidification processes are precisely controlled by an automated control system, reducing manual intervention and improving the reliability and stability of the system. The automated control can also automatically adjust the oxygen supply and humidification parameters according to real-time monitoring data to further improve efficiency. By providing humidified oxygen, the dry and oxygen-deficient working environment in the plateau area can be significantly improved, and the comfort of the staff can be improved.

[0016] Furthermore, an oxygen supply silicone pipe is used to connect the oxygen generator and the air flow mixing box to ensure the safety and reliability of oxygen transmission while reducing the impact of the pipe on oxygen quality.

[0017] Furthermore, the retractable oxygen supply pipeline makes the system more flexible, and the pipeline length can be adjusted according to actual needs, which is suitable for different working areas, thereby improving the adaptability and practicality of the system.

[0018] Furthermore, a fan is installed at the output port of the humidifying device, and the output port of the fan is connected to the retractable oxygen supply pipeline. The fan can increase the pressure and speed of the airflow, ensure that the humid air can be evenly delivered to the airflow mixing box, and improve the mixing efficiency and the stability of the airflow.

[0019] Furthermore, the design of the humidification filter element and the humidification housing makes the generation of humid air more uniform and efficient, and the arrangement of the strip air inlet and the humid air outlet further optimizes the air flow path and improves the humidification effect.

[0020] Furthermore, the slit-structured air outlet design (length-to-width ratio of 10:1) can distribute the humidified oxygen more evenly, avoiding local over-concentration or over-dilute conditions, and improving the uniformity of oxygen supply and humidification.

[0021] Furthermore, a guide plate is installed at the lower side of the air outlet. The guide plate is nested and connected to the air outlet through a rotating shaft. The airflow direction can be adjusted according to actual needs, so that the humid oxygen can better cover the required area, thereby improving the oxygen supply and humidification effects.

[0022] The first mixing zone, the second mixing zone and the third mixing zone set inside the airflow mixing box, as well as the design of the uniform orifice plate, ensure that oxygen and humid air are fully mixed in multiple stages. This multi-stage mixing process can significantly improve the uniformity of the airflow, avoid local over-concentration or over-thinness, and reduce energy waste and improve energy efficiency by optimizing the airflow mixing and transportation process. The function of the uniform orifice plate is to further evenly distribute the gas so that oxygen and humid air can be more evenly distributed when passing through each mixing zone.

[0023] Furthermore, a guide plate is installed at the lower side of the air outlet, which is nested and connected to the lower side of the air outlet through a rotating shaft, and the airflow direction can be adjusted according to actual needs. This design allows users to flexibly adjust the direction of the airflow according to specific working environments and needs to achieve directional oxygen supply and humidification. The air outlet adopts a slit structure with an aspect ratio of 10:1. This design can distribute humidified oxygen more evenly and cover a larger area. At the same time, the direction and range of the airflow can be further optimized through the adjustment of the guide plate.

[0024] Furthermore, the present invention discloses a workstation-type diffuse oxygen supply and humidification method for use in oxygen-deficient and dry areas of the plateau. By turning on the oxygen generator and the humidifier, oxygen and humid air are evenly mixed in an air flow mixing box to form humid oxygen. This method is simple and efficient, and can quickly provide humidified oxygen and improve the working environment.

[0025] Furthermore, oxygen and humid air undergo multi-stage mixing and flow equalization, and are finally output through the air outlet by the guide plate, ensuring uniform distribution and stable output of humid oxygen, thereby improving the effects of oxygen supply and humidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 : A schematic diagram of a station-type diffuse oxygen supply and humidification system for plateau hypoxic and dry areas of the present invention; Figure 2 : A schematic diagram of a station-type diffuse oxygen supply and humidification device for use in hypoxic and dry areas of the plateau according to the present invention; Figure 3 : Schematic diagram of the interior of the air flow mixing box, the slit air outlet and the guide plate structure of the oxygen supply device of the present invention; Figure 4 : Schematic diagram of the humidifying device of the present invention and its internal structure; Figure 5 : Distribution diagram of oxygen concentration in the respiratory zone and around the human body in the embodiment of the present invention; Figure 6 : Comparison diagram of average oxygen concentration in human respiratory zone of two oxygen supply modes in the embodiment of the present invention; Figure 7 : Comparison diagram of average moisture content in human breathing zone of three oxygen supply humidities in the embodiment of the present invention.

[0027] Explanation of reference numerals: 1. Oxygen supply humidification device; 2. Oxygen supply silicone pipe; 3. Oxygen generator; 4. Oxygen supply device; 5. Fan; 6. Humidifier; 7. Retractable oxygen supply pipe; 8. Air inlet; 9. First mixing zone; 10. Second mixing zone; 11. Uniform orifice plate; 12. Third mixing zone; 13. Air outlet; 14. Guide plate; 15. Air flow mixing box; 16. Humidifier filter element; 17. Wet air outlet; 18. Humidifier housing; 19. Strip air inlet. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4A station-type diffuse oxygen supply humidification system for plateau hypoxic and dry areas, comprising an oxygen generator 3, a humidifier 6 and an air flow mixing box 15, wherein the oxygen generator 3 is connected to an air inlet 8 as an input port on the air flow mixing box 15 through an oxygen supply silicone pipe 2, the air inlet 8 is connected to a retractable oxygen supply pipe 7, and the output ports of the oxygen generator 3 and the humidifier 6 are both connected to the retractable oxygen supply pipe 7; the oxygen generator 3 is connected to the retractable oxygen supply pipe 7 through an oxygen supply silicone pipe 2, the output port of the air flow mixing box 15 is an air outlet 13 with a slit structure, a guide plate 14 is installed at the lower side of the air outlet 13, and the air flow mixing box 15 and the guide plate 14 form a An oxygen supply device 4; three gas mixing areas, a first mixing area 9, a second mixing area 10 and a third mixing area 12, are arranged inside the air flow mixing box 15, and a uniform orifice plate 11 is also arranged between the first mixing area 9 and the second mixing area 10; a fan 5 is also installed at the output port of the humidifying device 6, and the output port of the fan 5 is connected to the retractable oxygen supply pipeline 7. A humidifying filter element 16 is arranged at the center of the humidifying device 6, and a humidifier housing 18 is installed on the outside of the humidifying filter element 16. A strip air inlet 19 is arranged on one side of the humidifier housing 18, and a wet air outlet 17 is arranged at the top of the humidifying device 6, and the wet air outlet 17 is connected to the inlet of the fan 5.

[0033] Example 1 Oxygen flow rate of oxygen generator 3: 10L / min, air volume 7m³ / h, oxygen concentration at the corresponding air outlet of oxygen generator 3: 39%, wind speed 0.9m / s This embodiment takes a 7.5m×3.7m×3.0m (L×W×H) plateau personnel workspace as the research object. The human body sits at the workstation in the workspace, and the oxygen supply and humidification device 1 is placed 50cm in front of the human body. The oxygen flow rate of the oxygen generator 3 is 10L / min, the air volume of the fan 5 is 7m³ / h, the oxygen concentration at the corresponding outlet of the fan 5 is 40%, and the wind speed of the fan 5 is 0.9m / s; In this embodiment, the average oxygen concentration of the human breathing zone under the workstation diffuse oxygen supply and global diffuse oxygen supply mode is mainly compared. The initial oxygen concentration volume fraction of the room is 20.95%; The oxygen generator 3, the humidifier 6 and the fan 5 are turned on. The oxygen generator 3 outputs oxygen through the oxygen supply silicone pipe 2 and enters the retractable oxygen supply pipe 7. At the same time, the outdoor dry airflow enters the humidifier 6 through the strip air inlet 19. The external dry airflow is wet exchanged with the humidification filter element 16 to obtain humid air. The generated humid air flows out to the fan 5 through the humid air outlet 17. The humid air is pressurized by the fan 5 and then transported to the retractable oxygen supply pipe 7. The oxygen and the humid air are mixed in the retractable oxygen supply pipe 7 to form humid oxygen and transported to the oxygen supply device 4. The oxygen supply device 4 includes an air flow mixing box 15. The oxygen moisture enters the first mixing zone 9 through the air inlet 8 of the air flow mixing box 15 and hits the flat plate for preliminary mixing. After preliminary flow equalization through the uniform orifice plate 11, it enters the second mixing zone 10 for more refined flow equalization and air flow mixing. Finally, after final flow equalization through the uniform orifice plate 11, it enters the third mixing zone 12 for mixing, and finally forms a jet through the slit-type air outlet 13 for discharge. The guide plate 14 on the lower side of the air outlet 13 is used to adjust the angle through the rotating shaft. The jet output from the well outlet 13 is converted into a restricted jet under the action of the guide plate 14, and diffuses horizontally to the human breathing zone, thereby realizing diffuse oxygen supply and humidification in the human breathing zone.

[0034] Through numerical simulation, the oxygen concentration distribution in the breathing zone and around the human body is obtained. The oxygen concentration distribution in the breathing zone and around the human body is shown in the figure below: Figure 5 As shown, we then went to Lhasa for field tests and measured the average oxygen concentration in the breathing zone as Figure 6 As shown, it complies with GB / T35414 "Requirements for oxygen regulation of diffuse oxygen supply in indoor spaces in plateau areas", and by comparison, it can be clearly found that the oxygen concentration in the breathing zone under the station-type diffuse oxygen supply mode is significantly higher than the average oxygen concentration in the global diffuse breathing zone, and it becomes more obvious over time. After the oxygen supply and humidification device 1 of the present invention performs humidification and oxygen supply for ten minutes, the average oxygen concentration in the human breathing zone under the station-type diffuse oxygen supply mode is about 3.8% higher than that of the global diffuse oxygen supply. In addition, the station-type diffuse oxygen supply and the global diffuse oxygen supply are further compared by calculating the oxygen lifting rate, and the calculation formula is: , where is the oxygen concentration in the target breathing zone; is the initial oxygen concentration in the room. Thus, the oxygen increase rate of the two oxygen supply modes under this embodiment can be calculated. After 10 minutes of oxygen supply, the oxygen increase rate of the station-type diffuse oxygen supply can reach 19.4%, which is much higher than the 1.2% of the global diffuse oxygen supply. Figure 5 shown.

[0035] Example 2 The flow rate of oxygen generator 3 is 10L / min, the air volume is 7m³ / h, the corresponding outlet oxygen concentration is 39%, the wind speed is 0.9m / s, and three humidification methods are used: humidification by humidification bottle (3), humidification by station-type oxygen supply humidifier (2), and simultaneous humidification by both (1). In this embodiment, the boundary conditions on the oxygen source side and the initial oxygen concentration in the room are the same as those in Embodiment 1, and only the humidity source side is different; the human body is still in a 7.5m×3.7m×3.0m (L×W×H) plateau personnel workspace, and the oxygen supply and humidification device 1 is still placed 50cm in front of the human body. The local humid environment creation capability is evaluated by comparing the average humidity content of the human breathing zone under different oxygen supply humidity.

[0036] The moisture content of the inlet and outlet boundary conditions of the oxygen humidification end humidified by the humidification bottle is 7.80g / (kg), the inlet moisture content of humidification using a workstation-type oxygen supply humidifier is 10.28g / (kg), and the inlet moisture content of humidification by both is 13.9g / (kg). The inlet oxygen concentration of the three is 39%.

[0037] After the above comparison, the average moisture content of the respiratory zone of the human body after humidification by a humidifier bottle, which is currently the most commonly used humidification method in plateau areas, is 4.35 g / (kg), which cannot meet the moisture content requirement of 5.11-10.3 (g / kg). However, the average moisture content of the human body's respiratory zone after humidification by a workstation oxygen supply humidifier and simultaneous humidification by the two are 5.19 g / (kg) and 6.31 g / (kg), respectively, both of which can meet the target requirements. At the same time, the oxygen concentration can also meet the requirements. Figure 7 shown.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0039] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A station-type diffuse oxygen supply humidification system for use in hypoxic and dry areas of the plateau, characterized in that: The invention comprises an oxygen generator (3), a humidifying device (6) and an air flow mixing box (15); the oxygen generator (3) and the humidifying device (6) are both connected to the input port of the air flow mixing box (15); and the output port of the air flow mixing box (15) is used for humidification and oxygen supply.

2. The station-type diffused oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 1 is characterized in that: The oxygen production device (3) is connected to the input port of the air flow mixing box (15) via the oxygen supply silica gel pipe (2).

3. The station-type diffused oxygen supply humidification system for plateau hypoxic and dry areas according to claim 2 is characterized in that: The input port of the air flow mixing box (15) is an air inlet (8), the air inlet (8) is connected to the retractable oxygen supply pipeline (7), and the output ports of the oxygen production device (3) and the humidification device (6) are both connected to the retractable oxygen supply pipeline (7).

4. The station-type diffused oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 3 is characterized in that: The output port of the humidifying device (3) is also equipped with a fan (5), and the output port of the fan (5) is connected to the retractable oxygen supply pipeline (7).

5. The station-type diffused oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 4 is characterized in that: A humidifying filter element (16) is disposed at the center of the humidifying device (3), a humidifying housing (18) is installed outside the humidifying filter element (16), a strip-shaped air inlet (19) is disposed on one side of the humidifying housing (18), and a humid air outlet (17) is disposed at the top of the humidifying device (3), and the humid air outlet (17) is communicated with the inlet of the fan (5).

6. The station-type diffused oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 3 is characterized in that: The output port of the air flow mixing box (15) is an air outlet (13) with a slit structure, and the length-to-width ratio of the air outlet (13) is 10:

1.

7. The station-type diffuse oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 6 is characterized in that: A guide plate (14) is installed at the lower side of the air outlet (13); the guide plate (14) is nested and connected to the lower side of the air outlet (13) via a rotating shaft; the connection angle is adjusted according to actual needs.

8. The station-type diffuse oxygen supply humidification system for use in plateau hypoxic and dry areas according to claim 6 is characterized in that: The air flow mixing box (15) is provided with three gas mixing areas, namely a first mixing area (9), a second mixing area (10) and a third mixing area (12), and a uniform orifice plate (11) is further provided between the first mixing area (9) and the second mixing area (10).

9. A station-type diffuse oxygen supply humidification method for plateau hypoxic and dry areas, based on a station-type diffuse oxygen supply humidification system for plateau hypoxic and dry areas according to any one of claims 1 to 8, characterized in that: The oxygen supply and humidification method comprises: turning on the oxygen supply device (3) and the humidification device (6); the oxygen output by the oxygen supply device (3) and the humidified air output by the humidification device are uniformly mixed in an air flow mixing box (15) to form humidified oxygen; and the humidified oxygen is output from the output port of the air flow mixing box (15).

10. The method of station-type diffuse oxygen supply and humidification for use in plateau hypoxic and dry areas according to claim 9, characterized in that: The oxygen and the moist air enter the first mixing zone (9) through the air inlet (8) of the air flow mixing box (15) and collide with the flat plate for preliminary mixing. The oxygen and the moist air then enter the second mixing zone (10) for preliminary flow equalization through the uniform orifice plate (11) for flow equalization and air flow mixing. The oxygen and the moist air finally enter the third mixing zone (12) for mixing after final flow equalization through the uniform orifice plate 11 and are finally guided and discharged through the air outlet (13) by the guide plate (14).

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