Plateau cold region pressurization and oxygenation tent

Abstract

The present application relates to highland oxygen supply technical field, especially disclose a kind of highland cold area pressurization oxygen-increasing tent, including pressurized air cushion and oxygen tent, the pressurized air cushion includes wear layer, heat insulation layer is fixed above wear layer, air cushion layer is fixed above heat insulation layer, heating layer is fixed above air cushion layer, resistance wire is fixed in heating layer, resistance wire is electrically connected with temperature controller, heat penetration layer is fixed above heating layer, the air cushion layer includes a plurality of side-by-side fixed together Tesla pipe.Affinity effect lies in: by the one-way ventilation principle of Tesla valve is applied to highland oxygen supply pipeline mechanics, realize the pressure increase of highland diffusion oxygen supply, by setting oxygen tent outside pressurized air cushion, reduce oxygen diffusion speed, form a high concentration of oxygen-rich environment, effectively improve the utilization efficiency of oxygen, reduce oxygen loss, create oxygen-rich sleep environment for sleeper, improve the comfort of highland sleep.

Description

Technical Field

[0001] This invention relates to the field of high-altitude oxygen supply technology, and in particular to a pressurized oxygenation tent for high-altitude cold regions. Background Technology

[0002] When first entering a plateau at an altitude exceeding 3000 meters, even healthy individuals will experience altitude sickness to some extent. Symptoms include headache, fatigue, chest tightness, shortness of breath, and cyanosis of the lips. Oxygen inhalation is the simplest and most effective way to alleviate altitude sickness. Currently, the common methods of oxygen supply in high-altitude areas include nasal cannula oxygen inhalation, face mask oxygen inhalation, and diffusion oxygen inhalation. Among these, under the same oxygen flow rate, bilateral nasal cannula oxygen inhalation yields the highest oxygen concentration, followed by face mask, then unilateral nasal cannula, with diffusion oxygen inhalation yielding the lowest concentration. The advantages of nasal cannula or face mask oxygen inhalation are high oxygen concentration, rapid effect, and high efficiency, making them suitable for use when treating patients in hospitals. Healthy individuals, without any underlying medical conditions, do not require as high an oxygen concentration as patients, and diffusion oxygen inhalation can also meet their oxygen needs. The basic method of diffused oxygen supply is to install oxygen supply ports in each room, which are connected to humidification bottles. After humidification, oxygen is directly blown into the room, increasing the oxygen content in the air. People in the room can receive supplemental oxygen without wearing nasal cannulas or masks. With diffused oxygen supply, people can move freely in the room, eat, drink, work, study, sleep, and rest without the constraints of nasal cannulas or masks. Therefore, it is widely used in high-altitude hotels, conference rooms, and even train carriages from Beijing to Lhasa. For people engaged in heavy physical labor such as bridge and tunnel construction in high-altitude areas, installing diffused oxygen supply equipment in dormitories provides basic occupational health protection, improving sleep and restoring physical strength.

[0003] Existing diffused oxygen supply equipment has five main drawbacks:

[0004] First, in rooms with diffused oxygen supply, the oxygen concentration is insufficient. The total oxygen flow rate in a building = oxygen flow rate required per room × number of rooms + total pipeline flow rate. As the number of rooms and pipeline lengths increase exponentially in large buildings, theoretically, the oxygen flow rate needs to increase exponentially to improve the oxygen concentration in each room. In reality, many locations do not meet the required oxygen flow rate and concentration standards.

[0005] Secondly, in rooms with diffused oxygen supply, the oxygen concentration is uneven. The oxygen concentration is higher near the oxygen nozzle and lower further away from it within the same room.

[0006] Third, in diffused oxygen supply rooms, the oxygen concentration is unstable. In communal spaces, people repeatedly enter and exit, repeatedly open and close doors and windows, and even use air conditioning for ventilation. As a result, due to the difference in oxygen concentration between indoors and outdoors, the high concentration of oxygen indoors will automatically permeate into the low concentration space outdoors, causing serious loss and waste of indoor oxygen.

[0007] Fourth, rooms with diffused oxygen supply are noisy and disrupt sleep. The bubbling noise from the oxygen flowing through the humidifier is so loud that it affects the sleep of everyone in the room.

[0008] Fifth, diffused oxygen supply rooms can cause discomfort for those using oxygen. Due to the large temperature difference between day and night and between indoors and outdoors in the high-altitude environment, especially in winter when temperatures are very low, the cold oxygen flow acts like the cold air emitted by an air conditioner, causing respiratory discomfort for those using oxygen.

[0009] The aforementioned problems are widespread, significantly reducing the effectiveness of diffused oxygen supply systems costing millions or even tens of millions of yuan, and even causing discomfort to users, forcing them to shut down the diffused oxygen supply equipment in their rooms. Analysis of the causes reveals that these problems all occur in the final step, namely, the stage where oxygen enters the body through the oxygen delivery pipes into the mouth and nose. This is actually due to an inherent deficiency in diffused oxygen supply systems.

[0010] This invention addresses the common problem of insufficient oxygen concentration in existing high-altitude diffused oxygen supply rooms, particularly in the collective dormitories for workers engaged in heavy physical labor in high-altitude areas. This low oxygen concentration affects the sleep quality and physical recovery of construction workers, posing a safety hazard. Therefore, this invention proposes a pressurized oxygenation tent for high-altitude and cold regions. Summary of the Invention

[0011] This invention proposes a pressurized and oxygenated tent for high-altitude and cold regions to solve the above-mentioned problems.

[0012] The technical solution of this invention is implemented as follows:

[0013] A pressurized and oxygen-enriched tent for high-altitude and cold regions includes a pressurized air cushion and an oxygen tent.

[0014] The pressurized air cushion includes a wear-resistant layer, a heat insulation layer fixed above the wear-resistant layer, an air cushion layer fixed above the heat insulation layer, a heating layer fixed above the air cushion layer, a resistance wire fixed inside the heating layer, the resistance wire being electrically connected to a thermostat, a heat-permeable layer fixed above the heating layer, and a plurality of Tesla tubes fixed together side by side in the air cushion layer, with adjacent Tesla tubes facing opposite directions and adjacent Tesla tubes connected end to end by a connecting pipe. One end of the Tesla tube in the air cushion layer is connected to a flow control valve through the air inlet pipe, the flow control valve being connected to an indoor oxygen supply pipe, and the other end of the Tesla tube in the air cushion layer is connected to an exhaust pipe through the air outlet pipe.

[0015] The oxygen tent includes a bottom frame nested outside the pressurized air cushion. The bottom frame has a U-shaped cross-section. Two rotating shafts are symmetrically fixed in the middle of the bottom frame. At least four support frames are rotatably mounted on the rotating shafts. The support frames are gate-shaped. A turntable is integrally formed at one end of each support frame near the rotating shaft. A shielding cover is provided between the multiple support frames. The shielding cover covers the space above and around the space formed by the multiple support frames. The support frames and the shielding cover are combined to form an oxygen tent with a trapezoidal cross-section. The two support frames at both ends of the shielding cover are fixed in the U-shaped groove of the bottom frame by snaps.

[0016] Furthermore, a humidifier is fixed on the air outlet pipe.

[0017] Furthermore, the air permeability of the shielding cloth cover is 100-150 mm / s.

[0018] Furthermore, each turntable is fixed with two limiting strips, the clamping angle between two adjacent limiting strips is 60 degrees, and one end of each limiting strip is located on the rotation path of the adjacent support frame.

[0019] By adopting the above technical solution, the beneficial effects of this invention are as follows: by applying the one-way ventilation principle of the Tesla valve to the mechanics of high-altitude oxygen supply pipelines, the pressure of high-altitude diffused oxygen supply is increased. By setting up an oxygen tent outside the pressurized air cushion, the oxygen diffusion rate is reduced, forming a high-concentration oxygen-rich environment, which effectively improves the utilization efficiency of oxygen, reduces oxygen loss, creates an oxygen-rich sleeping environment for sleepers, and improves the comfort of high-altitude sleep. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a main sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the pressurized air cushion structure of the present invention;

[0025] Figure 5This is a perspective view of the pressurized air cushion of the present invention;

[0026] Figure 6 This is an assembly effect diagram of the present invention;

[0027] Figure 7 This is a partially enlarged schematic diagram of the present invention;

[0028] Figure 8 This is a schematic diagram of the Tesla valve of the present invention;

[0029] Figure 9 This is a circuit diagram of the heating layer of the present invention.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1. Pressurized air cushion; 11. Heating layer; 12. Heat permeable layer; 13. Air cushion layer; 131. Tesla tube; 132. Connecting pipe; 133. Air outlet pipe; 134. Exhaust pipe; 135. Air inlet pipe; 136. Flow control valve; 14. Heat insulation layer; 15. Wear-resistant layer; 16. Thermostat; 161. Main power switch; 162. Indicator light; 163. Fuse; 164. Temperature control protection switch; 165. Resistance wire; 166. Temperature sensor; 2. Oxygen tent; 21. Bottom frame; 22. Support frame; 23. Shielding cloth cover; 24. Turntable; 25. Rotating shaft; 26. Limiting strip. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-9 As shown, a pressurized oxygen-enriched tent for high-altitude and cold regions includes a pressurized air cushion 1 and an oxygen tent 2.

[0034] The pressurizing air cushion 1 includes a wear-resistant layer 15, which is made of coarse cloth or nylon cloth, providing high friction resistance and preventing the pressurizing air cushion 1 from moving around during use. A heat insulation layer 14 is fixed above the wear-resistant layer 15. The heat insulation layer 14 is made of polyether heat insulation material with 18-20 pores / cm, a specified weight of 30kg / m³, and a hardness of 120N-170N at 40% indentation according to GB / T10807. An air cushion layer 13 is fixed above the heat insulation layer 14, and a heating layer 11 is fixed above the air cushion layer 13. A resistance wire 165 is fixed inside the heating layer 11, and the resistance wire 165 is electrically connected to a temperature controller 16. The resistance wire is made of high-strength polyester enameled nickel-chromium wire, which is evenly wound around a glass fiber core using a spiral winding process, and then covered with heat-resistant nylon braid. The fabric layer and resin coating, with resistance wires coiled beneath the heat-transmitting layer 12, generate heat evenly. The resistance wires have a power of 40-60 watts, consuming approximately 0.5 kWh per night. The AC power supply live wire is connected to the main power switch 161. The main power switch 161 is connected in series with indicator light 162 and thermostat 16. The thermostat 16 is connected in parallel with temperature sensor 166 and fuse 163. Fuse 163 is connected in series with temperature control protection switch 164. Temperature control protection switch 164 is connected in series with resistance wire 165. The other end of resistance wire 165 is connected to the neutral wire of the AC power supply. A heat-transmitting layer 12 is fixed above the heating layer 11. The heat-transmitting layer 12 is made of pure cotton fabric, which has the advantages of being breathable and heat-transmitting, and feels comfortable against the skin. It has the same properties as the cotton fabric of bed sheets and bedspreads, and does not generate static electricity. The air cushion layer 13 is wrapped with... The system comprises several Tesla tubes 131 secured side-by-side by straps, arranged neatly to form a cushion shape. The Tesla tubes 131 are made of heat-resistant polypropylene (PP), capable of withstanding temperatures above 1000℃, providing sterilization in high-temperature mode. The material is fatigue-resistant, easy to process, and the pipes are not prone to cracking or leaks. The thickness is 5-10mm. Adjacent Tesla tubes 131 face opposite directions, and their ends are connected by a connecting pipe 132 to form an air cushion layer 13. One end of each Tesla tube 131 within the air cushion layer 13 is connected to a flow control valve 136 via an air inlet pipe 135. The flow control valve 136 is connected to the indoor oxygen supply pipe, and its air inlet pipe is connected to the indoor air supply system. With matching pipe diameters, the other end of the Tesla tube 131 inside the air cushion layer 13 is connected to the exhaust pipe 134 via the air outlet pipe 133. After the heating layer 11 heats up, it can not only increase the room temperature and improve the comfort of the human body during sleep, but also increase the temperature of the oxygen passing through the air cushion layer 13. When the oxygen temperature rises, the pressure will increase. The pressurized air cushion 1 can achieve the pressurization effect in three ways: first, by using the Tesla valve to pressurize the fluid when it flows in the forward direction; second, by heating and pressurizing the air inside the airbag; and third, by providing the human body's weight to directly pressurize the air cushion, thereby increasing the pressure and temperature of the oxygen discharged from the exhaust pipe 134. In addition, the pressurized air cushion 1 also has heating and heat preservation functions and can be used as an electric blanket and a moisture-proof mat, which is especially suitable for workers who do heavy physical labor in high-altitude and cold climates to rest.

[0035] The oxygen tent 2 includes a bottom frame 21, which is nested outside the pressurized air cushion 1. The bottom frame 21 has a U-shaped cross-section. Two pivots 25 are symmetrically fixed in the middle of the bottom frame 21. At least four support frames 22 are rotatably mounted on the pivots 25. The support frames 22 are gate-shaped, and a turntable 24 is integrally formed at one end of the support frame 22 near the pivot 25. A shielding cover 23 is provided between the multiple support frames 22. A cotton cover is wrapped around the outside of the support frames 22 to facilitate the fixing of the shielding cover 23. The shielding cover 23 is made of firefighter protective clothing fabric, a composite material of flame-retardant fiber fabric and vacuum-metallized film, which has the characteristics of being lightweight, high-strength, flame-retardant, high-temperature resistant, heat radiation resistant, waterproof, wear-resistant, fold-resistant, harmless to the human body, and reflecting radiant heat. The shielding cover 23 covers the top and sides of the space formed by the multiple support frames 22. The support frames 22 and the shielding cover 23 are combined to form... An oxygen tent 2 with a trapezoidal cross-section has two supporting frames 22 at both ends of the covering cover 23, which are fixed to the U-shaped grooves of the bottom frame 21 by buckles. Both the bottom frame 21 and the supporting frames 22 are made of medical-grade PVC material, which is easy to shape, lightweight, and easy to connect. The oxygen tent 2 forms an enlarged version of an oxygen mask. Applying Bernoulli's fluid dynamics principle, adding the oxygen tent 2 to a room with an existing diffused oxygen supply creates a high-concentration oxygen-rich space. It can also transfer the gas pressure increased by the pressurized air cushion 1 to the oxygen tent 2, preventing oxygen from directly diffusing into the entire room and being quickly diluted by the air in the room, thereby improving oxygen utilization efficiency. The entire body of the person receiving oxygen is placed in the oxygen-rich environment created by the oxygen tent 2. During sleep, they can turn over freely without the restraint of a mask or nasal cannula, improving sleep quality and aiding in physical recovery. The oxygen tent 2 is similar to a folding mosquito net, with a simple structure and convenient use.

[0036] In this embodiment, in order to ensure indoor humidity, a humidifier and an air release valve are fixed on the air outlet pipe 133, which can ensure that the inner wall of the air cushion cavity is always dry and not prone to bacterial growth.

[0037] In this embodiment, the air permeability of the shading cloth cover 23 is 100-150 mm / s, which facilitates the formation of an oxygen-rich space inside the oxygen tent 2 to collect oxygen.

[0038] In this embodiment, each turntable 24 is fixed with two limiting strips 26, the clamping between two adjacent limiting strips 26 is 60 degrees, and one end of the limiting strip 26 is located on the rotation path of the adjacent support frame 22.

[0039] The working principle of this invention is as follows: When in use, the device is placed on a bed board, and a sheet or thin blanket is laid on the upper surface of the heating layer 11. The flow control valve 136 is connected to the indoor diffused oxygen supply. When resting, the person lies on the pressurized air mattress 1, and the rotating support frame 22 causes the oxygen tent 2 to cover the outside of the pressurized air mattress 1. The heating temperature of the heat-permeable layer 12 is controlled by the thermostat 16, and the oxygen flow rate is controlled by the flow control valve 136. Oxygen enters the Tesla tube 131 through the inlet pipe 135. Due to the unique function of the Tesla valve, the oxygen flow will automatically find the pipe with less resistance according to the principles of physics, that is, oxygen will preferentially flow in the forward direction of the Tesla valve, because reverse-flowing gas will be blocked until it stagnates in the pipe. In the process, after the airflow travels forward through one pipe and reaches the port, it will automatically choose a nearby pipe with less resistance to travel forward again. The distance traveled in the two journeys forms a small 360-degree loop. The airflow travels in a circular manner within the pipe cavity, repeating until the entire cavity is filled with oxygen and pressure balance is reached. Only then will the process stop automatically. When a person lies on such a pressurized air cushion 1, according to Pascal's law, the fluid in the sealed container will transmit pressure in all directions in equal amounts. Therefore, the person's own weight will be transmitted to the pressurized Tesla cavity. The oxygen flow in the air cushion cavity will be ejected outward from the exhaust pipe 134 with greater pressure under the support of the person's weight, and the oxygen user will receive oxygen at a greater pressure.

[0040] The Tesla valve's overall structure resembles a series of "B"-shaped pipes. While it lacks any mechanical flaps in the physical sense, it achieves the same unidirectional control effect. When fluid flows forward through the Tesla valve, the flow is unobstructed; when fluid flows backward, the flow rate slows down and eventually stagnates in the pipe. See [link to working principle] for details. Figure 8 When a fluid (gas or liquid) flows forward through a Tesla valve, it travels freely. However, when it enters the Tesla valve in the opposite direction, the fluid splits into two streams at the fork. The main stream and the branch streams collide head-on at the front, canceling each other out. Eventually, the fluid stagnates in the pipe and cannot move further. Because the Tesla valve does not have a true mechanical "valve," it does not suffer from the problems of aging, wear, or malfunction that occur with mechanical valves.

[0041] When gas flows in the forward direction through the Tesla valve, it has a positive pressurization effect. The physical principle is that when the gas flows in the forward direction through the Tesla tube, since the capacity of the central tube is slightly larger than the capacity of the output tube, the gas will undergo a process of expansion and then compression. Due to the pressure difference generated by the "expansion and contraction" process, the gas in the pipe gains the power to accelerate forward and obtains a positive pressure effect when it flows in the forward direction.

[0042] The working principle of Oxygen Tent 2 conforms to Bernoulli's equation in fluid mechanics, which is an application of the law of conservation of energy in the field of fluid forces. Bernoulli's equation states that in fluid flow where viscous losses are negligible, the sum of the pressure potential energy, kinetic energy, and potential energy at any two points on a streamline remains constant. The equation can be expressed as:

[0043]

[0044] Taking diffused oxygen supply in a room as an example, when oxygen flows from the oxygen pipe into the room, let's assume the oxygen pressure in the pipe is p1, the air density is ρ1, and the velocity is υ1; while when it flows out of the room (or a larger pipe), the air pressure is p2, the air density is ρ2, and the velocity is υ2; pw is the pressure loss. Regardless of whether the pipe is narrow or wide, the sum of the kinetic and potential energy of the gas per unit time is equal, and Bernoulli's equation can be simplified to:

[0045]

[0046] Since flow velocity = flow rate / pipe cross-sectional area, replacing the flow velocity in the above formula with the formula for flow rate and pipe cross-sectional area reveals that cross-sectional area is a crucial physical indicator affecting pipe flow rate. According to Bernoulli's formula, in diffused oxygen supply, blowing oxygen directly into a room with a cross-sectional area of ​​15 square meters versus blowing oxygen into a pipe with a cross-sectional area of ​​0.75 square meters results in a difference in oxygen concentration that can be 20 times greater (400 times). In other words, blowing oxygen directly into an oxygen tent with a smaller cross-sectional area can increase the oxygen concentration by 400 times compared to blowing it into a room with a larger cross-sectional area. Clearly, the oxygen tent acts as a "large mask," significantly increasing the oxygen concentration.

[0047] The circuit connection involved in this invention is a conventional method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0048] Components not described in detail in this article are existing technologies.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressurized and oxygen-enriched tent for high-altitude and cold regions, characterized in that: Including the pressurized air cushion (1) and the oxygen tent (2), The pressurized air cushion (1) includes a wear-resistant layer (15), a heat insulation layer (14) is fixed above the wear-resistant layer (15), an air cushion layer (13) is fixed above the heat insulation layer (14), a heating layer (11) is fixed above the air cushion layer (13), a resistance wire is fixed in the heating layer (11), the resistance wire is electrically connected with a temperature controller (16), a heat-permeable layer (12) is fixed above the heating layer (11), the air cushion layer (13) includes a plurality of Tesla tubes (131) fixed side by side together, two adjacent Tesla tubes (131) face opposite directions, and two adjacent Tesla tubes (131) are connected together at the head and tail through a connecting pipe (132), one end of the Tesla tube (131) in the air cushion layer (13) is connected with a flow control valve (136) through an air inlet pipe (135), the flow control valve (136) is connected with an indoor oxygen supply pipe, and the other end of the Tesla tube (131) in the air cushion layer (13) is connected with an exhaust pipe (134) through an air outlet pipe (133), and a humidifier is fixed on the air outlet pipe (133); The oxygen tent (2) includes a bottom frame (21), the bottom frame (21) is nested outside the pressurized air cushion (1), the bottom frame (21) is U-shaped in cross section, two rotating shafts (25) are symmetrically fixed in the middle of the bottom frame (21), at least four support skeletons (22) are rotatably installed on the rotating shafts (25), the support skeletons (22) are door-shaped, and a rotating disc (24) is integrally formed at one end of the support skeleton (22) close to the rotating shaft (25), a shielding cloth sleeve (23) is arranged between a plurality of support skeletons (22), the shielding cloth sleeve (23) has a ventilation property of 100-150 mm / s, the shielding cloth sleeve (23) covers the space above and around a plurality of support skeletons (22), the support skeleton (22) and the shielding cloth sleeve (23) are combined to form an oxygen tent (2) with a trapezoidal cross section, and two support skeletons (22) at both ends of the shielding cloth sleeve (23) are fixed in the U-shaped groove of the bottom frame (21) through buckles. Wherein, a high-concentration oxygen-rich space is obtained through the oxygen tent (2), and the gas pressure of the pressurized air cushion (1) is transmitted to the oxygen tent (2), thereby improving the oxygen utilization efficiency.

2. The high altitude cold region pressurization and oxygenation tent according to claim 1, characterized in that: Two limiting strips (26) are fixed on each rotating disc (24), the included angle between adjacent two limiting strips (26) is sixty degrees, and one end of the limiting strip (26) is located on the rotating path of the adjacent support skeleton (22).

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