Gas mixing device for hypoxic pre-adaptation training

Abstract

The utility model relates to low oxygen preadaptation training technical field especially a kind of gas mixing device for low oxygen preadaptation training, including mixing tank, the inside fixed mounting of mixing tank has flow collection component, the flow collection component includes partition, the partition is fixedly installed in the center of mixing tank inner chamber, the center of the partition top is connected with gas mixing cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hypoxia preconditioning training technology, specifically a gas mixing device for hypoxia preconditioning training. Background Technology

[0002] Hypoxia preconditioning training is a training method that uses intermittent exposure to a hypoxic (hypoxic) environment to stimulate the body's physiological adaptive response, thereby improving the body's ability to tolerate hypoxia in high-altitude, exercise, or disease states. Its core principle is to use mild hypoxia stimulation to activate the body's protective mechanisms, similar to the principle of a "vaccine," to prepare for more severe hypoxia challenges later.

[0003] A search revealed that the announcement number is CN117919977B, and the name is a gas mixing device including a rotating block. Research and analysis showed that it has the effect of reducing the probability of overflow of oxygen and ozone after mixing or incomplete waste gas treatment caused by changes in waste gas flow rate. However, it still has the following disadvantages to a certain extent.

[0004] For example, if the gas mixing speed is slow, some gases will not mix in a short time, and it is inconvenient to adjust the gas temperature, making it impossible to simulate different environments. The mixed gas is also inconvenient to collect and cannot be used quickly. In order to solve the above technical problems, we have designed a gas mixing device for low oxygen pre-acclimatization training. Utility Model Content

[0005] The purpose of this invention is to provide a gas mixing device for low-oxygen pre-acclimatization training, which has the advantages of rapid mixing and gas storage. It solves the problems of slow gas mixing speed, which leads to some gas failing to mix in a short time, inconvenience in adjusting gas temperature, inability to simulate different environments, and inconvenience in collecting the mixed gas.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas mixing device for hypoxia pre-acclimatization training, comprising a mixing tank, a flow collecting assembly fixedly installed inside the mixing tank, the flow collecting assembly including a partition plate, the partition plate being fixedly installed at the center of the inner cavity of the mixing tank, a gas mixing cylinder being connected to the center of the top of the partition plate, air inlet pipes being connected to the tops of both sides of the gas mixing cylinder, a heating pipe being fixedly sleeved on the surface of the gas mixing cylinder, a mixing component being fixedly installed at the center of the top of the mixing tank, the mixing component including a motor, the motor being fixedly installed at the top of the mixing tank, the output shaft of the motor penetrating into the inner cavity of the gas mixing cylinder and fixedly connected to a rotating rod, a spiral blade being fixedly sleeved on the top of the surface of the rotating rod, a stirring blade being fixedly sleeved on the bottom of the surface of the rotating rod, and a gas storage component being provided at the bottom of the mixing tank, the gas storage component including a gas storage tank.

[0007] Preferably, the top of the air intake pipe extends through to the top of the mixing tank and is connected to a connector, and the input end of the heating pipe extends through to the outside of the mixing tank and is fixedly connected to a heater.

[0008] Preferably, the spiral blade is located in the inner cavity of the mixing cylinder, the outer surface of the spiral blade is in contact with the inner wall of the mixing cylinder, and the stirring blade is located below the partition plate.

[0009] Preferably, an oxygen concentration sensor is fixedly installed on the right side of the mixing tank, and the detection end of the oxygen concentration sensor is located below the partition plate.

[0010] Preferably, the gas storage tank is threaded to the bottom of the mixing tank, and a one-way valve is fixedly installed on the top of the surface of the gas storage tank.

[0011] Preferably, a flexible hose is connected to the bottom right side of the gas storage tank, and an exhaust valve is connected to the other end of the flexible hose. An exhaust nozzle is connected to the outlet end of the exhaust valve.

[0012] Preferably, the upper end of the mixing tank is a cylindrical structure, the lower end of the mixing tank is a conical structure, and the number of spiral blades is two, with the upper spiral blade located inside the cylindrical structure and the lower cylindrical structure located inside the conical structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a motor to drive a rotating rod, which in turn drives a spiral blade and a stirring blade to rotate. Gas is introduced into the air inlet pipe through a connector and enters the mixing cylinder. The spiral blade concentrates and mixes the gas entering the mixing cylinder and mixes it downwards into the bottom of the partition plate. The stirring blade further concentrates the mixing. By adopting a two-stage mixing method of spiral blade + stirring blade, the mixing efficiency is increased by 300% compared to traditional mixing devices, thereby achieving a highly efficient and rapid mixing effect. An oxygen concentration sensor is used to detect the mixed gas, thereby monitoring the oxygen concentration.

[0015] 2. This utility model adopts a variable pitch design (50mm at the top and 30mm at the bottom) to form an axial pressure gradient in the mixing cylinder 32, which accelerates the downward flow of gas. The bottom cone angle of the mixing tank 1 is optimized by 60° (CFD simulation verification), which reduces the gas flow rate from 2m / s to 0.5m / s, which is beneficial for the polymerization of microbubbles.

[0016] 3. This utility model utilizes a gas storage tank to store mixed gas. By opening the exhaust valve, the mixed gas inside the storage tank can be discharged through a hose and exhaust nozzle, allowing the mixed gas to be used immediately. This greatly saves the time required to retrieve the gas during training and achieves the effect of convenient use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional cross-sectional view of a portion of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the hybrid component and current collector component of this utility model;

[0020] Figure 4 This is a bottom-view perspective view of the hybrid component and current collector component of this utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of the hybrid component of this utility model.

[0022] In the diagram: 1. Mixing tank; 2. Mixing assembly; 21. Motor; 22. Spiral blade; 23. Stirring blade; 24. Rotary rod; 3. Collector assembly; 31. Divider plate; 32. Mixing cylinder; 33. Inlet pipe; 34. Connector; 35. Heating tube; 4. Oxygen concentration sensor; 5. Gas storage assembly; 51. Gas storage tank; 52. One-way valve; 53. Hose; 54. Exhaust valve; 55. Exhaust nozzle. Detailed Implementation

[0023] Please see Figures 1-5 A gas mixing device for hypoxia pre-acclimatization training includes a mixing tank 1. A flow collector 3 is fixedly installed inside the mixing tank 1. The flow collector 3 includes a partition plate 31, which is fixedly installed at the center of the inner cavity of the mixing tank 1. A gas mixing cylinder 32 is connected to the center of the top of the partition plate 31. Air inlet pipes 33 are connected to the top of both sides of the gas mixing cylinder 32. A heating pipe 35 is fixedly sleeved on the surface of the gas mixing cylinder 32. A mixing component 2 is fixedly installed at the center of the top of the mixing tank 1. The mixing component 2 includes a motor 21, which is fixedly installed at the top of the mixing tank 1. The output shaft of the motor 21 passes through the inner cavity of the gas mixing cylinder 32 and is fixedly connected to a rotating rod 24. A spiral blade 22 is fixedly sleeved on the top of the surface of the rotating rod 24. The spiral blade 22 adopts a variable pitch design (50mm at the top and 30mm at the bottom). A stirring blade 23 is fixedly sleeved on the bottom of the surface of the rotating rod 24. A gas storage component 5 is provided at the bottom of the mixing tank 1. The gas storage component 5 includes a gas storage tank 51.

[0024] The spiral blade 22 forms a tight fit with the inner wall of the mixing cylinder 32 (gap ≤ 1mm). The motor 21 drives the rotating rod 24 to rotate at a speed of 800-1200rpm. Under the action of Bernoulli effect, oxygen / nitrogen enters from the inlet pipe 33 and is forcibly sheared by the spiral blade 22, realizing rapid mixing at the gas molecule level (mixing time < 5 seconds).

[0025] Please see Figure 1 and Figure 2 The top of the air inlet pipe 33 extends through to the top of the mixing tank 1 and is connected to a connector 34. The input end of the heating pipe 35 extends through to the outside of the mixing tank 1 and is fixedly connected to a heater. The heater is connected to the heating pipe 35 and can supply heat to the heating pipe 35, so that the heating pipe 35 can regulate the temperature of the mixing cylinder 32, thereby simulating different ambient temperatures. The heating pipe 35 adopts a PID temperature control algorithm, which can be accurately adjusted within the range of -10℃ to 50℃ (accuracy ±1℃), simulating the low temperature of high altitude (such as -20℃ at Mount Everest camp) or tropical high altitude (such as 25℃ in the Andes Mountains).

[0026] Please see Figure 2 , Figure 3 and Figure 4 The spiral blade 22 is located in the inner cavity of the mixing cylinder 32. The outer surface of the spiral blade 22 is in contact with the inner wall of the mixing cylinder 32. The spiral blade 22 can transport the gas from top to bottom and mix the gas during the transport process. The stirring blade 23 is located below the partition plate 31.

[0027] Please see Figure 1 and Figure 2 An oxygen concentration sensor 4 is fixedly installed on the right side of the mixing tank 1. The detection end of the oxygen concentration sensor 4 is located below the partition plate 31. By setting the oxygen concentration sensor 4, the oxygen concentration of the mixed gas can be detected, so that the mixed gas can reach the required concentration. The oxygen concentration sensor 4 (electrochemical type, detection range 5%-21%) provides real-time feedback data. The opening of the nitrogen inlet valve is controlled by the PLC to realize dynamic adjustment of the oxygen concentration (e.g., 12%±0.3%).

[0028] Please see Figure 1 The gas storage tank 51 is threaded to the bottom of the mixing tank 1. The gas storage tank 51 adopts a quick-release thread structure (M45×2 standard thread), with a working pressure of 0.2-0.5MPa and a one-way valve 52 opening pressure of 0.15MPa, which prevents backflow and avoids the risk of overpressure. A one-way valve 52 is fixedly installed on the top of the surface of the gas storage tank 51. By setting the one-way valve 52, the gas can be discharged into the gas storage tank 51 without backflow.

[0029] Please see Figure 1A hose 53 is connected to the bottom right side of the gas tank 51. By setting the hose 53, the exhaust nozzle 55 can be easily moved to different places for use, so that exhaust can be vented to different locations. The other end of the hose 53 is connected to an exhaust valve 54. By setting the exhaust valve 54, the gas inside the gas tank 51 can be easily discharged from the hose 53. The exhaust nozzle 55 is connected to the outlet end of the exhaust valve 54. The hose 53 is made of medical grade silicone (inner diameter 8mm) and is used with the Venturi exhaust nozzle 55. The flow rate can reach 15-30L / min, which can meet the various gas supply needs of masks / tents, etc.

[0030] Please see Figure 1 and Figure 2 The upper end of the mixing tank 1 is a cylindrical structure, and the lower end of the mixing tank 1 is a conical structure. There are two spiral blades 22. The upper spiral blade 22 is located inside the cylindrical structure, and the lower cylindrical structure is located inside the conical structure. The stirring blade 23 at the bottom of the cone generates vortices (Reynolds number Re>4000), which disrupts the gas laminar boundary layer, eliminates density stratification, and ensures mixing uniformity (oxygen concentration deviation <±0.5%).

[0031] In use, oxygen and nitrogen are introduced into the mixing cylinder 32 through two separate inlet pipes 33. The motor 21 drives the rotating rod 24 to rotate, which in turn drives the spiral blade 22 and the stirring blade 23 to rotate. The spiral blade 22 concentrates and mixes the gas entering the mixing cylinder 32 and mixes it downwards into the bottom of the partition plate 31. The stirring blade 23 further concentrates the mixing. At the same time, the heating pipe 35 heats the surface of the mixing cylinder 32. The temperature sensor detects the internal temperature of the mixing cylinder 32 and controls the temperature within the required range. Then, the oxygen concentration sensor 4 detects the mixed gas and continuously introduces nitrogen to control the oxygen concentration. When the oxygen concentration reaches the required concentration, the one-way valve is opened to allow the mixed gas to enter the gas storage tank 51 for collection. The mixed gas inside the gas storage tank 51 can be discharged from the hose 5 through the exhaust nozzle by opening the exhaust valve 54, so that the mixed gas can be used immediately.

[0032] In summary, this gas mixing device for hypoxia pre-acclimatization training, through the cooperation of mixing tank 1, mixing component 2, collection component 3, oxygen concentration sensor 4, and gas storage component 5, solves the problems of slow gas mixing speed, which leads to some gas failing to mix in a short time, inconvenience in adjusting gas temperature, inability to simulate different environments, and inconvenience in collecting the mixed gas.

Claims

1. A gas mixing device for hypoxia preconditioning training, comprising a mixing tank (1), characterized in that: The mixing tank (1) is internally fixedly equipped with a flow collector assembly (3), which includes a partition plate (31). The partition plate (31) is fixedly installed at the center of the inner cavity of the mixing tank (1). A mixing cylinder (32) is connected to the center of the top of the partition plate (31). An air inlet pipe (33) is connected to the top of both sides of the mixing cylinder (32). A heating pipe (35) is fixedly sleeved on the surface of the mixing cylinder (32). A mixing assembly is fixedly installed at the center of the top of the mixing tank (1). 2) The mixing component (2) includes a motor (21), which is fixedly installed on the top of the mixing tank (1). The output shaft of the motor (21) passes through the inner cavity of the mixing cylinder (32) and is fixedly connected to a rotating rod (24). The top surface of the rotating rod (24) is fixedly fitted with a spiral blade (22), and the bottom surface of the rotating rod (24) is fixedly fitted with a stirring blade (23). The bottom of the mixing tank (1) is provided with a gas storage component (5), which includes a gas storage tank (51).

2. The gas mixing device for hypoxia pre-acclimatization training according to claim 1, characterized in that: The top of the air inlet pipe (33) extends through to the top of the mixing tank (1) and is connected to a connector (34). The input end of the heating pipe (35) extends through to the outside of the mixing tank (1) and is fixedly connected to a heater.

3. The gas mixing device for hypoxia pre-acclimatization training according to claim 1, characterized in that: The spiral blade (22) is located in the inner cavity of the mixing cylinder (32), the outer surface of the spiral blade (22) is in contact with the inner wall of the mixing cylinder (32), and the stirring blade (23) is located below the partition plate (31).

4. The gas mixing device for hypoxia pre-acclimatization training according to claim 1, characterized in that: An oxygen concentration sensor (4) is fixedly installed on the right side of the mixing tank (1), and the detection end of the oxygen concentration sensor (4) is located below the partition plate (31).

5. A gas mixing device for hypoxia pre-acclimatization training according to claim 1, characterized in that: The gas storage tank (51) is threaded to the bottom of the mixing tank (1), and a one-way valve (52) is fixedly installed on the top of the surface of the gas storage tank (51).

6. A gas mixing device for hypoxia pre-acclimatization training according to claim 5, characterized in that: A flexible hose (53) is connected to the bottom right side of the gas storage tank (51), and an exhaust valve (54) is connected to the other end of the flexible hose (53). An exhaust nozzle (55) is connected to the outlet end of the exhaust valve (54).

7. A gas mixing device for hypoxia pre-acclimatization training according to claim 1, characterized in that: The upper end of the mixing tank (1) is a cylindrical structure, the lower end of the mixing tank (1) is a conical structure, and there are two spiral blades (22). The upper spiral blade (22) is located inside the cylindrical structure, and the lower cylindrical structure is located inside the conical structure.

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