Device for reducing concentration of carbon dioxide in oxygen cabin

Abstract

The utility model discloses a device for reducing the concentration of carbon dioxide in an oxygen cabin, which belongs to the technical field of oxygen cabins and comprises an air inlet end, an air outlet end, an adsorption device, a connecting pipe, a circulating air pump and a vacuum pump. The air inlet end is connected with the circulating air pump through a connecting pipe, the circulating air pump is connected with one end of the adsorption device through a connecting pipe, and the other end of the adsorption device is connected with the air outlet end and the vacuum pump. The air inlet end and the air outlet end are arranged in the oxygen cabin; and the adsorption device, the circulating air pump and the vacuum pump are arranged outside the oxygen cabin. According to the oxygen cabin, the concentration of carbon dioxide in the oxygen cabin can be continuously reduced, air in the oxygen cabin can be purified without interrupting the oxygen therapy process, the purification efficiency is high, and the safety and comfort of oxygen therapy are remarkably improved. Meanwhile, the circulating air pump and the vacuum pump are arranged outside the oxygen cabin, so that electricity utilization danger cannot be caused to oxygen therapy personnel in the cabin; the mode of removing carbon dioxide by using the adsorption device is safe and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen chambers, and specifically relates to a device for reducing the carbon dioxide concentration in an oxygen chamber. Background Art

[0002] Oxygen chambers are widely used in the medical field, especially for treating hypoxic diseases and promoting wound healing, etc., with remarkable effects. However, as people breathe in the oxygen chamber, the concentration of carbon dioxide in the oxygen chamber gradually increases. After reaching a certain concentration, it will have an adverse impact on the human body, such as causing symptoms like headache and dizziness, and even threatening life safety seriously in severe cases.

[0003] During the use of an oxygen chamber, since the inside of the chamber is a closed environment, each oxygen therapy lasts about 120 minutes. An adult in a quiet state in the oxygen chamber exhales about 0.5 L / min of carbon dioxide. According to the single-person chamber volume of about 3 m 3 , the carbon dioxide concentration in the chamber will be increased by about 2% in 120 minutes. Oxygen therapy personnel will experience symptoms such as headache and dyspnea in a carbon dioxide concentration environment of 2%; in a carbon dioxide concentration environment of 3% for one hour, they will experience symptoms such as sweating and expiratory difficulty; in a carbon dioxide concentration environment of 4% - 5%, symptoms such as dizziness, drowsiness, and dyspnea can occur within a few minutes; higher concentrations of carbon dioxide can lead to coma, muscle twitching, and even death. Therefore, it is necessary to reduce the carbon dioxide concentration in the oxygen chamber.

[0004] The existing oxygen chamber products do not have a device for reducing the carbon dioxide concentration, and the method of regularly ventilating and replacing air is used to reduce the carbon dioxide concentration. This method is not only inefficient and energy-consuming, but also difficult to implement during hyperbaric oxygen therapy. Summary of the Utility Model

[0005] The utility model aims at the above problems, makes up for the deficiencies of the prior art, and provides a device for reducing the carbon dioxide concentration in an oxygen chamber, including an air inlet end, an air outlet end, an adsorption device, a connecting pipe, a circulating air pump, and a vacuum pump; the air inlet end is connected to the circulating air pump through the connecting pipe, one end of the circulating air pump is connected to the adsorption device through the connecting pipe, and the other end of the adsorption device is respectively connected to the air outlet end and the vacuum pump;

[0006] The adsorption device includes a first adsorption tower, a second adsorption tower, and a valve group; the valve group includes a first valve, a second valve, a third valve, a fourth valve, a fifth valve, and a sixth valve;

[0007] The intake end is connected to one end of the circulating gas pump, and the other end of the circulating gas pump is respectively connected to a first valve and a second valve; the first valve is arranged at the bottom end of the first adsorption tower, and a third valve and a fifth valve are respectively arranged at the top end of the first adsorption tower. The fifth valve is connected to the air outlet end, and the third valve is connected to the vacuum pump; the second valve is arranged at the bottom end of the second adsorption tower; a fourth valve and a sixth valve are respectively arranged at the top end of the second adsorption tower. The sixth valve is connected to the air outlet end, and the fourth valve is connected to the vacuum pump.

[0008] Preferably, an intake muffler is arranged at the intake end.

[0009] Preferably, an exhaust muffler is arranged at the air outlet end.

[0010] Preferably, a vacuum muffler is arranged at the vacuum pump.

[0011] Preferably, a carbon dioxide concentration detector is arranged at the intake end.

[0012] Preferably, the intake end and the air outlet end are arranged inside the oxygen chamber; the adsorption device, the circulating gas pump, and the vacuum pump are arranged outside the oxygen chamber.

[0013] Advantages of the present utility model:

[0014] The present utility model can continuously reduce the concentration of carbon dioxide in the oxygen chamber, and the air in the oxygen chamber can be purified without interrupting the oxygen therapy process. The purification efficiency is high, and the safety and comfort of oxygen therapy are significantly improved. At the same time, the circulating gas pump and the vacuum pump are arranged outside the oxygen chamber, which will not pose an electrical danger to the oxygen therapy personnel in the chamber; the carbon dioxide is removed by using the adsorption device, and this method is a physical adsorption method, which is safe and reliable. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of a device for reducing the concentration of carbon dioxide in an oxygen chamber according to the present utility model.

[0016] Reference numerals in the figure: 1 is an intake muffler, 2 is an oxygen chamber, 3 is a connecting pipe, 4 is a circulating gas pump, 5 is a first valve, 6 is a second valve, 7 is a third valve, 8 is a fourth valve, 9 is a fifth valve, 10 is a sixth valve, 11 is a first adsorption tower, 12 is a second adsorption tower, 13 is a vacuum pump, 14 is a vacuum muffler, and 15 is an exhaust muffler. Detailed implementation manners

[0017] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] Combined Figure 1 As shown, a device for reducing the carbon dioxide concentration in an oxygen chamber of the present utility model includes an air inlet end, an air outlet end, an adsorption device, a connecting pipe 3, a circulating air pump 4, and a vacuum pump 13; the air inlet end is connected to the circulating air pump 4 through the connecting pipe 3, one end of the circulating air pump 4 is connected to the adsorption device through the connecting pipe 3, and the other end of the adsorption device is respectively connected to the air outlet end and the vacuum pump 13;

[0019] The adsorption device includes a first adsorption tower 11, a second adsorption tower 12, and a valve group; the valve group includes a first valve 5, a second valve 6, a third valve 7, a fourth valve 8, a fifth valve 9, and a sixth valve 10;

[0020] The air inlet end is connected to the circulating air pump 4, and the circulating air pump 4 is respectively connected to the first valve 5 and the second valve 6; the first valve 5 is arranged at the bottom end of the first adsorption tower 11, and the top end of the first adsorption tower 11 is respectively provided with a third valve 7 and a fifth valve 9, the fifth valve 9 is connected to the air outlet end, and the third valve 7 is connected to the vacuum pump 13; the second valve 6 is arranged at the bottom end of the second adsorption tower 12; the top end of the second adsorption tower 12 is respectively provided with a fourth valve 8 and a sixth valve 10, the sixth valve 10 is connected to the air outlet end, and the fourth valve 8 is connected to the vacuum pump 13.

[0021] Specifically, an air inlet muffler 1 is arranged at the air inlet end. The air inlet muffler 1 is located inside the oxygen chamber 2 and is used to reduce the intake noise. The connecting pipe 3 is used for connecting between various components to allow the gas to pass through.

[0022] Specifically, an exhaust muffler 15 is arranged at the air outlet end and is used to reduce the exhaust noise.

[0023] Specifically, a vacuum muffler 14 is arranged at the vacuum pump 13 and is used to reduce the noise of carbon dioxide emission.

[0024] Specifically, a carbon dioxide concentration detector is arranged at the air inlet end and is used to detect the carbon dioxide concentration inside the oxygen chamber.

[0025] Specifically, the air inlet end and the air outlet end are arranged inside the oxygen chamber 2; the adsorption device, the circulating air pump 4, and the vacuum pump 13 are arranged outside the oxygen chamber 2.

[0026] The circulating air pump 4 is used to extract the gas inside the oxygen chamber 2.

[0027] The vacuum pump 13 is used to extract the carbon dioxide in the first adsorption tower 11 and the second adsorption tower 12 and discharge it to the external environment.

[0028] The first adsorption tower 11 and the second adsorption tower 12 are filled with an efficient carbon dioxide adsorbent, and the first adsorption tower 11 and the second adsorption tower 12 work alternately to continuously remove the carbon dioxide inside the oxygen chamber 2.

[0029] Controlling the opening and closing of the valves in the control valve group can control the gas flow direction, realizing the alternating adsorption of the first adsorption tower 11 and the second adsorption tower 12, and at the same time enabling the purified gas to return to the oxygen chamber 2 through the air outlet end.

[0030] The working principle of the present utility model:

[0031] Both the air inlet end and the air outlet end of the present utility model are arranged inside the oxygen chamber 2. During operation, the circulating air pump 4 sucks out the gas inside the chamber through the connecting pipe 3, and realizes the alternating adsorption of the first adsorption tower 11 and the second adsorption tower 12 by controlling the opening and closing of the valves in the control valve group. The adsorbent in the first adsorption tower 11 and the second adsorption tower 12 adsorbs carbon dioxide, and then through the control of the valves in the valve group, the purified gas after adsorption returns to the oxygen chamber 2 through the air outlet end. At the same time, the adsorption device is connected to the vacuum pump 13, and vacuum desorption can be carried out on the first adsorption tower 11 or the second adsorption tower 12 that has adsorbed carbon dioxide, and the carbon dioxide is discharged to the external environment. By working alternately in this way, only a very small amount of the gas inside the chamber is lost to achieve the purpose of continuously reducing the concentration of carbon dioxide inside the chamber.

[0032] The working process of the present utility model:

[0033] The present utility model is used in cooperation with the oxygen chamber 2 during oxygen therapy. After the oxygen chamber 2 works for a period of time, the concentration of carbon dioxide inside the oxygen chamber 2 gradually increases with the breathing of the oxygen therapy personnel. The circulating air pump 4 is started, and at the same time, the first valve 5, the fifth valve 9, and the fourth valve 8 are opened, and the second valve 6, the third valve 7, and the sixth valve 10 are closed. The circulating air pump 4 drives the gas containing carbon dioxide inside the chamber to flow to the first adsorption tower 11, and the carbon dioxide is left in the first adsorption tower 11 by the adsorbent. The purified gas after adsorption passes through the fifth valve 9 and returns to the oxygen chamber 2 through the air outlet end. At the same time, the vacuum pump 13 performs vacuum desorption on the second adsorption tower 12, and the carbon dioxide in the second adsorption tower 12 is pumped out, so that the ability of the second adsorption tower 12 to adsorb carbon dioxide is regenerated. Set a certain time, switch the state of the valve group switch, close the first valve 5, the fifth valve 9, and the fourth valve 8, and open the second valve 6, the third valve 7, and the sixth valve 10, so that the first adsorption tower 11 is desorbed and the second adsorption tower 12 adsorbs carbon dioxide.

[0034] By circulating in this way, the first adsorption tower 11 and the second adsorption tower 12 are alternately adsorbed and desorbed to achieve the purpose of continuously reducing the concentration of carbon dioxide inside the oxygen chamber 2.

[0035] The present utility model can be integrated into the oxygen chamber 2 system or used as an independent carbon dioxide purification device.

[0036] The utility model can continuously reduce the concentration of carbon dioxide in the oxygen chamber 2, purify the gas in the oxygen chamber 2 without interrupting the oxygen therapy process, with high purification efficiency, and significantly improve the safety and comfort of oxygen therapy. At the same time, the circulating air pump 4 and the vacuum pump 13 are arranged outside the oxygen chamber 2, which will not pose an electrical danger to the oxygen therapy personnel in the chamber; the adsorption device is used to remove carbon dioxide, and this method is physical adsorption, which is safe and reliable.

[0037] It can be understood that the above specific description of the utility model is only for explaining the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the use requirements, it is within the protection scope of the utility model.

Claims

1. A device for reducing the concentration of carbon dioxide in an oxygen chamber, characterized in that: It includes an air inlet end, an air outlet end, an adsorption device, a connecting pipe, a circulating air pump, and a vacuum pump; the air inlet end is connected to the circulating air pump through a connecting pipe, the circulating air pump is connected to one end of the adsorption device through a connecting pipe, and the other end of the adsorption device is connected to the air outlet end and the vacuum pump respectively; The adsorption device comprises a first adsorption tower, a second adsorption tower, and a valve group; the valve group comprises a first valve, a second valve, a third valve, a fourth valve, a fifth valve, and a sixth valve; The air inlet end is connected to one end of the circulating air pump, and the other end of the circulating air pump is respectively connected to the first valve and the second valve; the first valve is arranged at the bottom end of the first adsorption tower, and the third valve and the fifth valve are respectively arranged at the top end of the first adsorption tower, the fifth valve is connected to the air outlet end, and the third valve is connected to the vacuum pump; the second valve is arranged at the bottom end of the second adsorption tower; the fourth valve and the sixth valve are respectively arranged at the top end of the second adsorption tower, the sixth valve is connected to the air outlet end, and the fourth valve is connected to the vacuum pump.

2. A device for reducing carbon dioxide concentration in an oxygen chamber according to claim 1, characterized in that: An air intake muffler is arranged at the air intake end.

3. A device for reducing carbon dioxide concentration in an oxygen chamber according to claim 1, characterized in that: An exhaust muffler is arranged at the air outlet end.

4. A device for reducing carbon dioxide concentration in an oxygen chamber according to claim 1, characterized in that: A vacuum muffler is arranged at the vacuum pump.

5. The device for reducing carbon dioxide concentration in an oxygen chamber according to claim 1, characterized in that: The air inlet end is provided with a carbon dioxide concentration detector.

6. The device for reducing carbon dioxide concentration in an oxygen chamber according to claim 1, characterized in that: The air inlet and the air outlet are arranged in the oxygen chamber; the adsorption device, the circulating air pump and the vacuum pump are arranged outside the oxygen chamber.

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