A temperature regulation circulation system and method for a single person medical hyperbaric chamber

Abstract

The application relates to a single-person medical pressurized oxygen cabin temperature adjusting circulating system and method, which comprises a cabin body, a circulating channel, a wind power driving mechanism and a cold-heat exchanger. The cabin body is used for containing high-pressure high-oxygen gas. An air inlet and an air outlet are arranged on the cabin body. Two ends of the circulating channel are connected with the air inlet and the air outlet respectively. The wind power driving mechanism is connected with the circulating channel and is used for driving the internal gas of the circulating channel to flow back into the cabin body. The cold-heat exchanger is arranged in the circulating channel and is used for adjusting the internal temperature of the circulating channel. The application improves the problem that the internal temperature of the cabin body is slowly adjusted during the temperature adjusting process of the high-pressure oxygen cabin.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical hyperbaric oxygen chamber, and in particular to a temperature regulation circulation system and method for a single-person medical hyperbaric oxygen chamber. BACKGROUND

[0002] Some patients with diseases such as ischemia or hypoxia need to be in a high-pressure and high-oxygen environment during treatment. Being in a high-pressure and high-oxygen environment helps to improve the oxygen absorption effect of the patient and improve the treatment effect of the disease. A hyperbaric oxygen chamber can keep the air pressure and oxygen concentration in the chamber high, and is widely used in medical treatment.

[0003] In related technologies, a single cold type air conditioner without circulation is usually used for temperature regulation in the chamber of a hyperbaric oxygen chamber. This air conditioner needs a long time to adjust the temperature in the chamber to a suitable temperature range, and the patient needs to wait for a long time before feeling that the temperature inside the chamber body has dropped, resulting in a poor overall oxygen therapy experience. SUMMARY

[0004] In order to improve the slow temperature regulation of the chamber body in the temperature regulation process of the hyperbaric oxygen chamber, the present application provides a temperature regulation circulation system and method for a single-person medical hyperbaric oxygen chamber.

[0005] In a first aspect, the present application provides a temperature regulation circulation system for a single-person medical hyperbaric oxygen chamber, which adopts the following technical solution:

[0006] A temperature regulation circulation system for a single-person medical hyperbaric oxygen chamber includes a chamber body, a circulation channel, a wind-driven mechanism, and a heat exchanger. The chamber body is used to contain high-pressure and high-oxygen gas. The chamber body is provided with an air inlet and an air outlet. The two ends of the circulation channel are respectively connected to the air inlet and the air outlet. The wind-driven mechanism is connected to the circulation channel and is used to drive the internal gas of the circulation channel to flow back into the chamber body. The heat exchanger is arranged in the circulation channel and is used to regulate the internal temperature of the circulation channel.

[0007] By adopting the above technical solution, the heat exchanger exchanges heat with the gas to regulate the temperature inside the circulation channel. The circulation channel is connected to the chamber body to form a channel for the circulation of the gas. The wind-driven mechanism can provide power for the flow of the gas, so that the gas in the circulation channel can circulate between the circulation channel and the chamber body. When the gas circulates, the heat exchange between the gases is accelerated, and the speed of temperature regulation inside the chamber body is improved.

[0008] Optionally, the system further includes an air extraction member arranged on the circulation channel and used to extract the internal gas of the circulation channel.

[0009] By adopting the technical scheme, the air extraction member extracts the gas inside the circulation channel, so that the gas pressure inside the circulation channel is reduced, and a gas pressure difference is formed between the cabin body and the circulation channel, thereby accelerating the gas flow speed between the circulation channel and the cabin body.

[0010] Optionally, the circulation channel is provided with sealing valves, and the sealing valves are arranged at one end of the circulation channel close to the air inlet and the other end of the circulation channel close to the air outlet.

[0011] By adopting the technical scheme, the sealing valves are arranged at both ends of the circulation channel, and when the sealing valves are closed, the circulation channel is isolated from the cabin body, and when the sealing valves are opened, the circulation channel is connected to the cabin body. The arrangement of the sealing valves enables the air extraction member to extract the gas inside the circulation channel alone, thereby increasing the gas pressure difference between the circulation channel and the cabin body in a short time.

[0012] Optionally, the wind-driven mechanism comprises a centrifugal fan and a driving device, and the driving device is used to drive the rotation of the impeller of the centrifugal fan.

[0013] By adopting the technical scheme, the driving device drives the rotation of the impeller of the centrifugal fan, thereby accelerating the circulation of the gas between the circulation channel and the cabin body.

[0014] Optionally, the circulation channel is provided with a condensed water discharge valve, and the condensed water discharge valve is used to discharge the liquid inside the circulation channel.

[0015] By adopting the technical scheme, the arrangement of the condensed water discharge valve enables the liquid formed by the liquefaction of the gas inside the circulation channel to be discharged.

[0016] Optionally, the circulation channel is provided with a heat exchange plate between the heat exchanger and the air outlet, a plurality of converging-diverging holes are formed in the heat exchange plate, a plurality of tapered portions are formed in the inner wall of the converging-diverging holes in the radial direction, and a plurality of expanding portions are formed in the inner wall of the converging-diverging holes in the radial direction.

[0017] By adopting the technical scheme, the arrangement of the heat exchange plate enables the gas inside the circulation channel to pass through the converging-diverging holes of the heat exchange plate. Due to the arrangement of the tapered portions and the expanding portions, when the gas passes through the inner wall of the converging-diverging holes, the gas collides with the tapered portions or the expanding portions of the converging-diverging holes, thereby strengthening the heat exchange between the gas and the inner wall of the converging-diverging holes.

[0018] Optionally, the edge of the converging-diverging hole is provided with a plurality of swirl vanes, and the swirl vanes are arranged in a spiral shape around the converging-diverging hole.

[0019] By adopting the technical scheme, the converging and diverging holes surrounded by the cyclone vane are arranged in a spiral shape, so that the gas passing from the spiral center of the cyclone vane forms a spiral flow, the gas spirals passing from adjacent spiral centers have the same rotation direction, the gas spirals with the same rotation direction contact each other to form turbulence and reduce the flow rate of the gas, so that the gas passing through the cyclone vane is more fully exchanged with the heat exchanger, and the heat exchange effect of the heat exchanger is enhanced.

[0020] Optionally, the temperature detector is arranged in the cabin body.

[0021] Optionally, the temperature detector is arranged in the cabin body.

[0022] In a second aspect, the application provides a single-person medical pressurized oxygen cabin temperature regulation circulation method, which adopts the following technical scheme:

[0023] A single-person medical pressurized oxygen cabin temperature regulation circulation method comprises the following steps:

[0024] Starting the wind power driving mechanism to drive the circulation channel and the cabin body to circulate the gas flow;

[0025] Starting the heat exchanger to regulate the temperature inside the cabin body.

[0026] Optionally, the single-person medical pressurized oxygen cabin temperature regulation circulation method further comprises the following steps between the step of starting the wind power driving mechanism to drive the circulation channel and the cabin body to circulate the gas flow and the step of starting the heat exchanger to regulate the temperature inside the cabin body.

[0027] Obtaining wind power setting information;

[0028] Obtaining cabin temperature information;

[0029] Based on the wind power setting information and the cabin temperature information, the working power of the heat exchanger is controlled according to a preset relationship mapping table of the working power of the heat exchanger and the cabin temperature regulation effect.

[0030] Optionally, the single-person medical pressurized oxygen cabin temperature regulation circulation method further comprises the following step before the step of starting the wind power driving mechanism to drive the circulation channel and the cabin body to circulate the gas flow.

[0031] Closing the sealing valve to separate the circulation channel from the cabin body.

[0032] open the exhaust member, and control the exhaust member to extract the gas inside the circulation channel at a first preset exhaust rate, wherein the exhaust member is preset with the first preset exhaust rate and a second preset exhaust rate;

[0033] open the sealing valve to connect the circulation channel with the cabin;

[0034] start the air inlet mechanism, and control the air inlet mechanism to deliver the gas into the cabin at a preset air inlet rate, wherein the air inlet mechanism is arranged on the cabin and used for delivering the high-pressure and high-oxygen gas

[0035] Optionally, the single-person medical pressurized oxygen cabin temperature regulation circulation method has the following steps between the step of opening the exhaust member and controlling the exhaust member to extract the gas inside the circulation channel at a first preset exhaust rate and the step of opening the sealing valve to connect the circulation channel with the cabin:

[0036] obtain the pressure difference information of the cabin and the circulation channel;

[0037] control the opening of the sealing valve based on the pressure difference information of the cabin and the circulation channel;

[0038] control the exhaust member to extract the gas inside the circulation channel at a second preset exhaust rate based on the pressure difference information of the cabin and the circulation channel, wherein the second preset exhaust rate is smaller than the first preset exhaust rate.

[0039] According to the single-person medical pressurized oxygen cabin temperature regulation circulation system, the following beneficial technical effects can be achieved:

[0040] 1. The wind-driven mechanism and the circulation channel are arranged, the gas flow speed inside the cabin is accelerated, the heat exchange between the gases is accelerated, and thus the temperature regulation speed in the cabin is improved.

[0041] 2. The exhaust member and the sealing valve are arranged, a large pressure difference is generated between the circulation channel and the cabin, and the gas exchange speed between the circulation channel and the cabin is accelerated.

[0042] 3. The heat exchange plate and the cyclone sheet are arranged, the gases in the circulation channel are fully subjected to heat exchange with the cold and hot exchanger, and the heat exchange effect of the cold and hot exchanger is improved. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a structural schematic view of a single-person medical pressurized oxygen cabin temperature regulation circulation system according to Embodiment 1 of the present application.

[0044] Figure 2 is a sectional view of a single-person medical pressurized oxygen cabin temperature regulation circulation system according to Embodiment 1 of the present application.

[0045] Figure 3is a sectional view of a one-person medical hyperbaric oxygen chamber temperature regulation circulation system according to Embodiment 2 of the present application.

[0046] Figure 4 is Figure 3 is an enlarged view of A in FIG. 1.

[0047] Figure 5 is a flowchart of a one-person medical hyperbaric oxygen chamber temperature regulation circulation method.

[0048] Figure 6 is a flowchart of a S2 sub-step in a one-person medical hyperbaric oxygen chamber temperature regulation circulation method.

[0049] Figure 7 is a flowchart of a S5 sub-step in a one-person medical hyperbaric oxygen chamber temperature regulation circulation method.

[0050] BRIEF DESCRIPTION OF DRAWINGS 1, chamber body; 11, push-pull stretcher bed; 12, air inlet mechanism; 13, door frame; 14, door cover; 15, air inlet; 16, air outlet; 17, air pressure detector; 18, temperature detector; 2, circulation channel; 3, heat exchanger; 4, air drive mechanism; 41, centrifugal fan; 411, impeller; 42, drive device; 5, flange; 6, condensate discharge valve; 7, air extraction member; 8, sealing valve; 9, heat exchange plate; 91, variable aperture; 911, tapered portion; 912, expanding portion; 10, cyclone vane. DETAILED DESCRIPTION

[0051] The present application will be further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the present application and not in limitation thereof.

[0052] Embodiment 1

[0053] Embodiments of the present application disclose a one-person medical hyperbaric oxygen chamber temperature regulation circulation system. Referring to Figure 1 and Figure 2 , the circulation system comprises a chamber body 1, a circulation channel 2, a heat exchanger 3, and an air drive mechanism 4. The chamber body 1 is used to contain high-pressure high-oxygen gas to provide an oxygen therapy environment for a patient. The circulation channel 2 is installed on the chamber body 1 and is in communication with the interior of the chamber body 1, and is used to provide a circulation flow path for the high-pressure high-oxygen gas of the chamber body 1. The heat exchanger 3 is installed in the circulation channel 2 and is used to regulate the temperature inside the circulation system. The air drive mechanism 4 is in communication with the circulation channel 2 and is used to drive the circulation of the high-pressure high-oxygen gas between the circulation channel 2 and the chamber body 1.

[0054] Specifically, the cabin body 1 is capsule-shaped, and a push-pull stretcher bed 11 is placed in the cabin body 1. The push-pull stretcher bed 11 is provided with a pulley at the bottom of the bed, which is used for moving the stretcher bed. The patient can lie on the push-pull stretcher bed 11, and the staff can push or pull the stretcher bed to send the patient into or out of the hyperbaric oxygen chamber.

[0055] With reference to Figure 2 , the cabin body 1 is provided with an air inlet mechanism 12 for providing high-pressure and high-oxygen gas to the cabin body 1. The air inlet mechanism 12 can control the air inlet rate of the high-pressure and high-oxygen gas entering the cabin body 1, that is, the volume of the high-pressure and high-oxygen gas input into the cabin body 1 per unit time. One end of the cabin body 1 is provided with a door frame 13 and a door cover 14, and the door cover 14 is buckled on the door frame 13, so that the cabin body 1 is isolated from the external environment.

[0056] With reference to Figure 2 , during treatment, the patient needs to be pushed into the hyperbaric oxygen chamber first, the door cover 14 is buckled on the door frame 13, and then the air inlet rate of the air inlet mechanism 12 is controlled to gradually increase the internal pressure of the hyperbaric oxygen chamber until the gas pressure and oxygen density required for the treatment of the patient are reached.

[0057] With reference to Figure 2 , the cabin body 1 is provided with an air inlet 15 and an air outlet 16. The air inlet 15 is located at the top of the side wall of the end of the cabin body 1 away from the door cover 14, and the air outlet 16 is located at the bottom of the end of the cabin body 1 close to the door cover 14. The circulation channel 2 is a hollow cylindrical pipeline, and the two ends of the circulation channel 2 are respectively connected with the air inlet 15 of the cabin body 1 and the air outlet 16 of the cabin body 1, so that the circulation channel 2 and the internal space of the cabin body 1 are connected.

[0058] The material of the circulation channel 2 can be selected in various ways, such as stainless steel plate, plastic composite steel plate, etc. The selected material should have good high-pressure resistance and corrosion resistance.

[0059] With reference to Figure 2 , the circulation channel 2 includes a plurality of pipelines, and the cross section of the pipeline is circular. As an example, the pipelines are fixedly connected through flanges 5. In other embodiments, other connection methods can also be used, such as bolt connection, welding fixation, etc. As long as the selected connection method can fix the pipelines and make them connected and communicated with each other.

[0060] With reference to Figure 2, the wind driven mechanism 4 is located at one end of the circulation channel 2 close to the air inlet 15 of the cabin 1, and is used to drive the internal gas of the circulation channel 2 to flow back to the cabin 1. In the embodiment, the wind driven mechanism 4 is a centrifugal fan 41, and in other embodiments, a Roots blower can also be selected, as long as the selected device can drive the internal gas of the circulation channel 2 to flow back to the cabin 1, which is not limited in the application. In the embodiment, the centrifugal fan 41 is in communication with the circulation channel 2, and the impeller 411 of the centrifugal fan 41 rotates under the drive of the driving device 42. The rotating blades provide kinetic energy to the gas, so that the gas quickly flows back to the inside of the cabin 1.

[0061] With reference to Figure 2 , one end of the circulation channel 2 close to the air outlet 16 of the cabin 1 is fixedly connected with the heat exchanger 3 through the flange 5. The heat exchanger 3 is fixed to the top wall of the circulation channel 2. The heat exchanger 3 is used to exchange heat with the gas in the air exchange pipeline. When cooling is needed, the heat exchanger 3 absorbs the heat of the gas in the circulation channel 2, thereby reducing the temperature of the gas. When heating is needed, the heat exchanger 3 provides heat to the gas in the circulation channel 2, thereby increasing the temperature of the gas. The heat exchanger 3 realizes the function of exchanging heat with the gas in the circulation channel 2. Therefore, the heat exchanger 3 can be a commonly used household air conditioner, or a water-cooled air conditioner, as long as it can realize the heat exchange with the gas in the circulation channel 2, which is not limited in the application.

[0062] Since the circulation channel 2 and the cabin 1 are in communication, the gas in the circulation channel 2 can be transported into the cabin 1 through the action of the centrifugal fan 41, so that the heat exchanger 3 can be used to adjust the temperature inside the cabin 1. Due to the presence of the centrifugal fan 41, the flow speed of the gas in the circulation channel 2 is increased, which improves the efficiency of the heat exchanger 3 exchanging heat with the gas, so that the temperature adjustment in the cabin 1 can be completed in a short time.

[0063] With reference to Figure 2 , two condensate water discharge valves 6 are further arranged on the circulation channel 2, which are respectively located at the bottom wall of the circulation channel 2 close to the centrifugal fan 41 and the bottom wall of the circulation channel 2 close to the heat exchanger 3. The condensate water discharge valve 6 is used to discharge the liquid produced by the gas in the circulation channel 2 being liquefied by cooling.

[0064] Embodiment 2

[0065] With reference to Figure 3 , in order to further improve the temperature adjustment efficiency of the single-person medical pressurized oxygen cabin temperature adjustment circulation system, on the basis of the embodiment 1, the single-person medical pressurized oxygen cabin temperature adjustment circulation system further comprises an air extraction member 7 and a heat exchange plate 9. The air extraction member 7 is arranged on the circulation channel 2 and is used to extract the internal gas of the circulation channel 2. The heat exchange plate 9 is used to enhance the heat exchange efficiency of the heat exchanger 3.

[0066] The air extractor 7 is a device for extracting the air in the closed system. A vacuum pump can be selected as the air extractor 7, or an air pump can be selected as the air extractor 7. Any device that can extract the air in the circulation channel 2 can be selected. As an example, the vacuum pump is used to extract the air in the circulation channel 2.

[0067] Referring to Figure 3 , two sealing valves 8 are arranged in the circulation channel 2, and are arranged at one end of the circulation channel 2 close to the air inlet 15 and at one end of the circulation channel 2 close to the air outlet 16. When the two sealing valves 8 are closed at the same time, the circulation channel 2 and the cabin 1 are disconnected.

[0068] When the sealing valve 8 is closed and the air extractor 7 is extracting air, the air pressure in the circulation channel 2 decreases, and an air pressure difference is formed between the cabin 1 and the circulation channel 2. At this time, the sealing valve 8 is opened, and the air in the cabin 1 flows into the circulation channel 2, promoting the circulation of the air between the circulation channel 2 and the cabin 1. Since the air extractor 7 extracts the air in the circulation channel 2, the discharge of the air at normal temperature and pressure in the circulation channel 2 and the cabin 1 is also accelerated.

[0069] Referring to Figure 3 , a pressure detector 17 is arranged in the cabin 1 and the circulation channel 2, respectively, for detecting the air pressure values in the cabin 1 and the circulation channel 2. A temperature detector 18 is arranged in the cabin 1 for detecting the temperature in the cabin 1.

[0070] Referring to Figure 3 and Figure 4 , in this embodiment, the circulation channel 2 is also fixedly connected with a heat exchange plate 9, which is located between the cold and heat exchanger 3 and the air outlet 16 of the cabin 1. A plurality of scaling holes 91 are formed in the heat exchange plate 9, and the scaling holes 91 are uniformly distributed on the heat exchange plate 9. When the wind-driven mechanism 4 is started, the air in the circulation channel 2 exchanges heat with the cold and heat exchanger 3 through the scaling holes 91.

[0071] Referring to Figure 4 , the inner wall of the scaling hole 91 is concave inward or convex outward in the radial direction to form a plurality of tapered portions 911 and a plurality of expanding portions 912, and the tapered portions 911 and the expanding portions 912 are arranged alternately. Since the side wall of the scaling hole 91 is arranged alternately by the tapered portions 911 and the expanding portions 912, the gas successively collides with the tapered portions 911 and the expanding portions 912 of the scaling hole 91 when passing through the scaling hole 91, and exchanges heat with the hole wall of the scaling hole 91. Therefore, the gas in the circulation channel 2 can exchange heat with the heat exchange plate 9 when passing through the heat exchange plate 9. Since the heat exchange plate 9 is close to the cold and heat exchanger 3, the heat exchange plate 9 is easy to exchange heat with the cold and heat exchanger 3, thereby improving the heat exchange efficiency of the cold and heat exchanger 3.

[0072] Referring to Figure 4 , the edge of the scaling hole 91 is also provided with a plurality of swirl vanes 10, which enclose the hole edge of the scaling hole 91. The gas passing through the swirl vanes 10 will generate a spiral flow. And the spin direction of the spiral flow generated by adjacent swirl vanes 10 is the same. The two adjacent spiral flows can be abstracted as two clockwise rotating air flows. If the two air flows contact each other, the motion directions of the two air flows at the tangent position are opposite. Thus, the two adjacent spiral flows are prone to interfere with each other to form turbulence, so that the flow speed of the gas is slowed down. After the gas passes through the heat exchange plate 9, the speed of the gas in the circulation channel 2 is slowed down. Because the flow speed of the gas is slowed down, when the gas passes through the cold and hot heat exchanger 3, it is helpful for the gas to exchange heat with the cold and hot heat exchanger 3 more fully.

[0073] The application also provides a single-person medical hyperbaric oxygen chamber temperature regulation circulation method for the single-person medical hyperbaric oxygen chamber temperature regulation circulation system. Referring to Figure 5 , the method comprises the following steps:

[0074] S1. Close the sealing valve to separate the circulation channel from the cabin.

[0075] In the system, there are two sealing valves 8, which are respectively located at one end of the circulation channel 2 close to the air inlet 15 and the other end of the circulation channel 2 close to the air outlet 16. The sealing valve 8 is used to seal the circulation channel 2. By closing the sealing valve 8, the circulation channel 2 can be separated from the cabin 1.

[0076] S2. Open the air extraction member and control the air extraction member to extract the internal gas of the circulation channel at a first preset air extraction rate.

[0077] In the system, the air extraction member 7 is arranged on the circulation channel 2, and the air extraction member 7 is provided with a first air extraction rate and a second air extraction rate. The air extraction rate is the volume of gas extracted by the air extraction member 7 per unit time. The first air extraction rate is greater than the second air extraction rate. When the air extraction member 7 works at the first air extraction rate, the gas in the circulation channel 2 can be quickly extracted, so that the air pressure in the circulation channel 2 is reduced.

[0078] Specific but not limited, referring to Figure 6 , S2 can comprise the following sub-steps:

[0079] S21. Obtain the air pressure difference information of the cabin and the circulation channel.

[0080] In the system, the air pressure detectors 17 in the cabin 1 and the circulation channel 2 detect the air pressure in the cabin 1 and the circulation channel 2 respectively. By subtracting the numerical values, the air pressure difference information of the cabin 1 and the circulation channel 2 is obtained.

[0081] S22. Control the opening of the sealing valve based on the air pressure difference information of the cabin and the circulation channel.

[0082] Since the air extractor 7 continuously extracts the gas in the circulation channel 2, the air pressure in the circulation channel 2 is continuously reduced, and the air pressure difference between the cabin 1 and the circulation channel 2 gradually increases. When the air pressure difference between the cabin 1 and the circulation channel 2 reaches a preset value, the sealing valve 8 is opened to connect the cabin 1 and the circulation channel 2. Since there is an air pressure difference between the cabin 1 and the circulation channel 2, and the air pressure in the cabin 1 is greater than that in the circulation channel 2, the gas in the cabin 1 flows into the circulation channel 2. The flow rate of the gas is positively correlated with the air pressure difference, and the greater the air pressure difference, the faster the flow rate of the gas.

[0083] It is worth mentioning that the air pressure difference between the cabin 1 and the circulation channel 2 is not the larger the better. If the air pressure difference is large, the air extractor 7 needs to work at the first preset air extraction rate for a long time. Therefore, only a suitable air pressure difference between the cabin 1 and the circulation channel 2 is needed to enable the gas in the cabin 1 to flow into the circulation channel 2 quickly.

[0084] Specifically, the air pressure difference preset value for controlling whether the sealing valve 8 is opened can be determined according to experiments. For example, under the same conditions, a plurality of experiments are performed, and a curve of the flow rate of the gas in the circulation channel 2 changing with the air pressure difference under different air pressure differences is drawn. After comparison, an air pressure difference that can make the flow rate of the gas in the circulation channel 2 larger is selected.

[0085] It is worth mentioning that the air pressure difference preset value does not have to be an accurate value. The air pressure difference preset value can be a range of air pressure differences. When the air pressure difference between the cabin 1 and the circulation channel 2 reaches the preset range of air pressure differences, the sealing valve 8 can be opened.

[0086] S23. Based on the air pressure difference information between the cabin and the circulation channel, and controlling the air extractor to extract the gas in the circulation channel at a second preset air extraction rate.

[0087] When the air pressure difference between the cabin 1 and the circulation channel 2 reaches the preset range of air pressure differences, most of the gas in the circulation channel 2 has been extracted by the air extractor 7, and the air extractor 7 does not need a large air extraction rate at this time. When the air pressure difference reaches the preset range of air pressure differences, the air extractor 7 is controlled to extract the gas in the circulation channel 2 at a second preset air extraction rate, and the second air extraction rate is smaller than the first air extraction rate. When the air extractor 7 works at the second air extraction rate, the air extractor 7 realizes the function of air exchange. The carbon dioxide and water vapor generated by the patient breathing in the cabin 1 can be extracted by the air extractor 7, and the value of the second air extraction rate is set to be approximately the same as the gas rate generated by the patient breathing.

[0088] The determination of the second air extraction rate of the air extraction member 7 can be measured by experiments, for example, by placing the experimenter in the hyperbaric oxygen chamber, measuring the breathing rate of the experimenter, and then measuring the gas content generated by one breath of the experimenter, and multiplying the two to obtain the approximate gas production rate of the experimenter. Select multiple experimenters to perform the above experiment, record the relevant data, and compare and analyze, and select the average as the gas production rate of the patient. The second air extraction rate of the air extraction member 7 is approximately the same as the gas production rate of the patient.

[0089] S3. Open the sealing valve to connect the circulation channel with the cabin.

[0090] S4. Start the air inlet mechanism and control the air inlet mechanism to deliver gas into the cabin at a preset air inlet rate.

[0091] During the oxygen therapy process of the hyperbaric oxygen chamber, the pressure in the cabin 1 gradually increases, and the air inlet mechanism 12 of the cabin 1 inlets according to the preset air inlet rate of the system of the hyperbaric oxygen chamber. How to set and change the air inlet rate, the market hyperbaric oxygen chamber system has relevant settings in this regard, and the setting information does not belong to the scope of protection of the present application, and the present application is not stated.

[0092] S5. Start the wind-driven mechanism to make the circulation channel and the cabin circulate the gas flow.

[0093] The wind-driven mechanism 4 provides kinetic energy to the gas, so that the gas can circulate between the circulation channel 2 and the cabin 1. The greater the power of the wind-driven mechanism 4, the greater the wind speed of the gas. In the embodiment of the present application, the wind-driven mechanism 4 selected is a centrifugal fan 41. The wind speed in the cabin 1 and the wind speed in the circulation channel 2 change with the change of the working power of the centrifugal fan 41, and the working power of the centrifugal fan 41 is positively correlated with the wind speed in the cabin 1 and the wind speed in the circulation channel 2.

[0094] Specific but not limited, referring to Figure 7 , S5 can include the following sub-steps:

[0095] S51. Obtain wind power setting information.

[0096] The wind power setting information, i.e. the working power of the centrifugal fan 41, is obtained when the centrifugal fan 41 is started.

[0097] S52. Obtain cabin temperature information.

[0098] The temperature in the cabin 1 is detected by the temperature detector 18 to obtain the internal temperature of the cabin 1, i.e. the cabin 1 temperature information.

[0099] S53. Based on the wind setting information and the cabin temperature information, the working power of the cold-heat exchanger is controlled according to a preset mapping table of the working power of the cold-heat exchanger and the cabin temperature adjustment effect.

[0100] The temperature in the cabin 1 is affected by the cold-heat exchanger 3 on one hand and the centrifugal fan 41 on the other hand. Specifically, if the power of the centrifugal fan 41 is too large, the wind speed in the cabin 1 will be too large, which will reduce the temperature in the cabin 1. If the power of the centrifugal fan 41 is too small, the gas flow speed in the cabin 1 will be too slow, which will reduce the temperature adjustment effect of the cold-heat exchanger 3. Since the cold-heat exchanger 3 and the centrifugal fan 41 affect each other and are both related to the cabin temperature adjustment effect, a plurality of comparative experiments are needed to be carried out at the beginning of the system design, and a mapping table of the working power of the cold-heat exchanger and the cabin temperature adjustment effect is established.

[0101] Specifically, the comparative experiment needs to control the variable. When the wind setting information, i.e. the working power of the centrifugal fan, remains unchanged, the working power of the cold-heat exchanger is changed, the parameter information in the experiment is recorded, and finally the temperature adjustment rate is calculated to reflect the temperature adjustment effect.

[0102] The parameter information includes the working power of the centrifugal fan, the working power of the cold-heat exchanger, the running time, the initial temperature of the cabin, the final temperature of the cabin, and the temperature change of the cabin.

[0103] The temperature adjustment rate = (the final temperature of the cabin - the initial temperature of the cabin) ÷ the running time. It is worth mentioning that the initial temperature of the cabin is also an important influencing factor. When a plurality of comparative experiments are carried out, the initial temperature of the cabin needs to be controlled to be consistent.

[0104] According to the working power of the cold-heat exchanger and the corresponding cabin temperature adjustment rate obtained by the comparative experiment, a mapping table of the working power of the cold-heat exchanger and the cabin temperature adjustment effect is established. Some important parameter information in the table needs to be noted, including the working power of the centrifugal fan and the initial temperature of the cabin.

[0105] By adopting the above method, the working power of the centrifugal fan is changed, and a plurality of mapping tables of the working power of the cold-heat exchanger and the cabin temperature adjustment effect are established.

[0106] At the same time, since the initial temperature of the cabin has a great influence on the experimental results, when the above experiment is carried out, 5°C, 15°C, 25°C and 35°C can be set as the initial temperature of the cabin, and the corresponding initial temperature information of the cabin is recorded in the mapping table.

[0107] The method for establishing the preset relationship mapping table between the working power of the cold-heat exchanger and the temperature regulation effect of the cabin. In use, the system selects the corresponding relationship mapping table between the working power of the cold-heat exchanger and the temperature regulation effect of the cabin according to the cabin temperature information and the wind power setting information, and selects the appropriate working power of the cold-heat exchanger according to the required temperature regulation rate.

[0108] It is worth mentioning that the establishment of the relationship mapping table between the working power of the cold-heat exchanger and the temperature regulation effect of the cabin needs a large number of experiments. In view of the experimental cost, the system does not need to strictly adjust the working power of the cold-heat exchanger according to the relationship mapping table between the working power of the cold-heat exchanger and the temperature regulation effect of the cabin. For example, in specific practice, the initial temperature of the cabin is 18℃, and the working power of the centrifugal fan is 1.5KW. The relationship mapping table between the working power of the cold-heat exchanger and the temperature regulation effect of the cabin is established under the condition that the initial temperature of the cabin is 15℃ and the working power of the centrifugal fan is 1.8KW. Therefore, this mapping table can also be used as a reference to adjust the working power of the cold-heat exchanger.

[0109] S6. Start the cold-heat exchanger to regulate the temperature inside the cabin.

[0110] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A temperature regulation circulation system for a single person medical hyperbaric oxygen chamber, characterized by: The application relates to a high-pressure high-oxygen gas circulation device, which comprises a cabin (1) for containing high-pressure high-oxygen gas, a circulating channel (2), a wind-driven mechanism (4) and a cold-heat exchanger (3), wherein an air inlet (15) and an air outlet (16) are arranged on the cabin (1), the two ends of the circulating channel (2) are connected with the air inlet (15) and the air outlet (16) respectively, the wind-driven mechanism (4) is connected with the circulating channel (2) and is used for driving the internal gas of the circulating channel (2) to flow back into the cabin (1), and the cold-heat exchanger (3) is arranged in the circulating channel (2) and is used for adjusting the internal temperature of the circulating channel (2). The wind-driven mechanism (4) comprises a centrifugal fan (41) and a driving device (42), and the driving device (42) is used for driving the rotation of an impeller (411) of the centrifugal fan (41). A condensed water discharge valve (6) is arranged on the circulating channel (2) and is used for discharging the liquid in the circulating channel (2). A heat exchange plate (9) is arranged in the circulating channel (2) between the cold-heat exchanger (3) and the air outlet (16), a plurality of contraction-expansion holes (91) are formed in the heat exchange plate (9), a plurality of tapered sections (911) are formed in the inner wall of the contraction-expansion holes (91) in a radially inward manner, and a plurality of expanding sections (912) are formed in the inner wall of the contraction-expansion holes (91) in a radially outward manner. A plurality of rotational flow sheets (10) are arranged on the edges of the contraction-expansion holes (91) and surround the contraction-expansion holes (91) in a spiral manner.

2. The temperature regulation circulation system for a single person medical hyperbaric oxygen chamber according to claim 1, characterized in that: The device further comprises an air extraction member (7) arranged on the circulating channel (2) and used for extracting the internal gas of the circulating channel (2).

3. A temperature regulating circulation system for a one-man medical hyperbaric oxygen chamber as defined in claim 2, wherein: Sealing valves (8) are arranged on the circulating channel (2), and two sealing valves (8) are arranged on the one end of the circulating channel (2) close to the air inlet (15) and the one end of the circulating channel (2) close to the air outlet (16) respectively.

4. The temperature regulating circulation system for a single person medical hyperbaric oxygen chamber according to claim 3, wherein: The device further comprises air pressure detectors (17) and a temperature detector (18), the air pressure detectors (17) are arranged on the cabin (1) and the circulating channel (2) respectively, and the temperature detector (18) is arranged in the cabin (1).

5. A method for temperature regulation cycle of a single-person medical hyperbaric oxygen chamber, for a temperature regulation cycle system of a single-person medical hyperbaric oxygen chamber as claimed in any one of claims 1 to 4, characterized in that, The device comprises the following steps: The wind-driven mechanism is started to make the circulating channel and the cabin circulate the gas; The cold-heat exchanger is started to adjust the internal temperature of the cabin.

6. The method of claim 5, wherein the temperature of the single-person medical hyperbaric oxygen chamber is adjusted to a temperature of about 34°C to about 36°C. The device further comprises the following steps between the steps of starting the wind-driven mechanism to make the circulating channel and the cabin circulate the gas and the steps of starting the cold-heat exchanger to adjust the internal temperature of the cabin: The wind power setting information is acquired; The cabin temperature information is acquired; The working power of the cold-heat exchanger is controlled according to a preset relationship mapping table of the working power of the cold-heat exchanger and the cabin temperature adjustment effect based on the wind power setting information and the cabin temperature information.

7. The method of claim 6, wherein the temperature of the single-person medical hyperbaric oxygen chamber is adjusted to a temperature of about 34°C to about 36°C. The device further comprises the following steps before the steps of starting the wind-driven mechanism to make the circulating channel and the cabin circulate the gas: The sealing valve is closed to separate the circulation channel from the cabin; The exhaust member is opened and controlled to extract the gas inside the circulation channel at a first preset exhaust rate, wherein the exhaust member is preset with the first preset exhaust rate and a second preset exhaust rate; The sealing valve is opened to connect the circulation channel with the cabin; The air inlet mechanism is started to control the air inlet mechanism to deliver the gas into the cabin at a preset air inlet rate, wherein the air inlet mechanism is arranged on the cabin and used to deliver the high-pressure high-oxygen gas.

8. The method of claim 7, wherein the temperature of the single-person medical hyperbaric oxygen chamber is adjusted to a temperature of about 34°C to about 36°C. The step of opening the exhaust member and controlling the exhaust member to extract the gas inside the circulation channel at the first preset exhaust rate and the step of opening the sealing valve to connect the circulation channel with the cabin further comprise the following steps: obtaining the pressure difference information between the cabin and the circulation channel; controlling the opening of the sealing valve based on the pressure difference information between the cabin and the circulation channel; controlling the exhaust member to extract the gas inside the circulation channel at the second preset exhaust rate based on the pressure difference information between the cabin and the circulation channel, wherein the second preset exhaust rate is less than the first preset exhaust rate.

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