Improved oxygen generator working in low-temperature environment

Abstract

The utility model discloses an improved oxygen generator working in a low-temperature environment, and relates to the technical field of oxygen generators. The device mainly comprises an installation frame, a transmission part, an air source separation part, an air exhaust part and an oxygen exhaust part are arranged on the installation frame, the transmission part comprises an air compressor and an air heater, an air inlet pipe is connected to the air heater, an exhaust pipe is connected between the air heater and the output end of the air compressor, and the air source separation part is connected with the air outlet pipe. And the air heater is adjusted in real time through a control system on the oxygen generator. According to the oxygen generator, the molecular sieve is ensured to work at the optimal temperature through real-time feedback regulation of the inlet air temperature, so that the yield of oxygen is improved, the proper inlet air temperature is beneficial to more effectively separating oxygen by the molecular sieve, reducing mixing of other gases and improving the purity of the oxygen, and the oxygen generator can adapt to different low-temperature environments through a feedback regulation mechanism; and stable operation under various low-temperature conditions can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an improved oxygen concentrator working in a low-temperature environment. Background Art

[0002] Oxygen concentrator technology, a key component of medical and industrial gas production, is used to separate oxygen from air. The increasing demand for oxygen, particularly in low-temperature environments like plateaus and polar regions, places higher demands on the performance of oxygen concentrators.

[0003] Early oxygen concentrators primarily used cryogenic and electrolytic methods, but these methods are energy-intensive and unsuitable for low-temperature environments. Subsequently, pressure swing adsorption (PSA) oxygen concentrators developed and became widely used due to their low energy consumption and ease of operation. However, the performance of PSA oxygen concentrators in low-temperature environments still needs improvement. Utility Model Content

[0004] To address this problem, this application document provides an improved oxygen generator that works in a low-temperature environment. It can automatically sense and adjust the intake air temperature to keep the equipment in optimal working condition. It can be widely used in medical oxygen supply in plateau areas, oxygen supply for polar expeditions and research, and industrial gas production in low-temperature environments.

[0005] The purpose of the present invention is to solve the problems raised in the above background technology and to provide an improved oxygen concentrator that works in a low temperature environment.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] An improved oxygen concentrator operating in a low-temperature environment comprises a mounting frame on which a transmission component, an air source separation component, an air exhaust component, and an oxygen exhaust component are provided, wherein:

[0008] The transmission component includes an air compressor and an air heater, the air heater is connected to an air inlet pipe, an exhaust pipe is connected between the air heater and the output end of the air compressor, and the air heater is adjusted in real time by the control system on the oxygen concentrator;

[0009] The air inlet end of the air source separation component is connected to the air outlet of the air compressor, and the air source separation component is used to separate oxygen from other gases in the air;

[0010] The air inlet end of the air exhaust component is connected to other gas exhaust ports on the air source separation component;

[0011] The oxygen exhaust component includes a vent pipe connected to the oxygen exhaust port on the gas source separation component.

[0012] Preferably, the air compressor is of oil-free scroll type.

[0013] Preferably, the gas source separation component is an oxygen production module, the oxygen production module is provided with an air inlet pipe connected to the air outlet of the air compressor, the oxygen production module is provided with an oxygen exhaust pipe and other gas exhaust pipes, and the oxygen exhaust pipe is connected to the ventilation pipe.

[0014] Preferably, there are two oxygen production modules.

[0015] Preferably, the air exhaust component includes a drying cylinder and a filter, the air inlet end of the drying cylinder is connected to other gas exhaust pipes of the oxygen production module, the air outlet end of the drying cylinder is connected to the air inlet end of the filter, and the filter is provided with an air outlet pipe.

[0016] Preferably, a hair dryer having an air outlet end corresponding to the air compressor is installed on the mounting frame, and a cooler corresponding to an air inlet end of the hair dryer is installed on the mounting frame.

[0017] Preferably, a three-way joint is installed on the ventilation pipe, a gas mass flow meter is installed on one of the connecting ends of the three-way joint, the gas mass flow meter is connected to a sensor mounting seat via a connecting pipe 1, an oxygen concentration sensor is installed on the sensor mounting seat, the sensor mounting seat is connected to an oxygen pressure gauge via a connecting pipe 2, and a ceramic heater is provided on the gas mass flow meter.

[0018] Beneficial effects:

[0019] The utility model ensures that the molecular sieve operates at the optimal temperature through real-time feedback regulation of the intake air temperature, thereby increasing the oxygen production. The appropriate intake air temperature helps the molecular sieve to separate oxygen more effectively, reduce the mixing of other gases, and improve the oxygen purity. The feedback regulation mechanism enables the oxygen concentrator to adapt to different low-temperature environments and ensure stable operation under various low-temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2It is a schematic diagram of the three-dimensional structure of the transmission part of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the gas source separation component in the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the air exhaust component in the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the oxygen exhaust component in the utility model.

[0026] Figure 1-Figure 5 middle:

[0027] 1. Mounting frame; 2. Transmission components; 3. Gas source separation components; 4. Air exhaust components; 5. Oxygen exhaust components; 11. Blower; 12. Cooler; 21. Air compressor; 22. Air heater; 23. Inlet pipe; 24. Exhaust pipe; 31. Oxygen generator module; 32. Air inlet pipe; 33. Oxygen exhaust pipe; 34. Other gas exhaust pipes; 41. Drying cylinder; 42. Filter; 43. Air outlet pipe; 51. Ventilation pipe; 52. T-joint; 53. Gas mass flow meter; 54. Connecting pipe 1; 55. Sensor mounting base; 56. Oxygen concentration sensor; 57. Connecting pipe 2; 58. Oxygen pressure gauge; 531. Ceramic heater. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] This application provides an improved oxygen concentrator that works in a low-temperature environment, which is mainly used to solve the problem that early oxygen concentrators mainly used cryogenic methods and electrolysis methods, but these methods have high energy consumption and are not suitable for low-temperature environments. The pressure swing adsorption oxygen concentrator that was subsequently developed has been widely used due to its advantages such as low energy consumption and simple operation. However, the performance of the pressure swing adsorption oxygen concentrator in a low-temperature environment still needs to be improved, and the following technical solutions are provided. Figure 1-Figure 5 Give detailed instructions:

[0030] An improved oxygen concentrator operating in a low-temperature environment mainly comprises an installation frame 1, on which are provided a transmission component 2, an air source separation component 3, an air exhaust component 4, and an oxygen exhaust component 5, wherein: the transmission component 2 comprises an air compressor 21 and an air heater 22, the air heater 22 is connected to an air inlet pipe 23, an exhaust pipe 24 is connected between the air heater 22 and the output end of the air compressor 21, and the air heater 22 is adjusted in real time by a control system on the oxygen concentrator; the air inlet end of the air source separation component 3 is connected to the air outlet of the air compressor 21, and the air source separation component 3 is used to separate oxygen from other gases in the air; the air inlet end of the air exhaust component 4 is connected to the other gas exhaust ports on the air source separation component 3; the oxygen exhaust component 5 includes an oxygen exhaust port on the air source separation component 3 The connected ventilation pipe 51, when the device is used in specific operation, first turn on the air compressor 21 to start compressing the ambient air, monitor the intake air temperature through the control system, and adjust the heating intensity of the air heater 22 to ensure that the air reaches the optimal temperature before entering the air source separation component 3. In the air source separation component 3, the separation of oxygen and other gases is monitored to ensure the separation efficiency, and other gases generated during the separation process are discharged through the air exhaust component 4, and pure oxygen is exported through the oxygen exhaust component 5. The device improves the working efficiency of the air source separation component 3 by preheating the compressed air, and adjusts the air heater 22 in real time to ensure that the equipment can operate stably in different low-temperature environments. By accurately controlling the intake air temperature, the purity and quality of oxygen are improved, and the intelligent control system adjusts the heating intensity as needed to reduce energy waste.

[0031] In this example, see Figure 2 The air compressor 21 is a fully oil-free scroll type. The fully oil-free design avoids the contamination of compressed air by oil and improves the purity of the final oxygen. Since there is no need to deal with oil, the maintenance cost and maintenance workload are reduced. The fully oil-free scroll air compressor 21 can work effectively in high-altitude areas and is not affected by low air pressure.

[0032] Further, see Figure 3The gas source separation component 3 is an oxygen production module 31. The oxygen production module 31 is provided with an air inlet pipe 32 connected to the air outlet of the air compressor 21. The oxygen production module 31 is provided with an oxygen exhaust pipe 33 and other gas exhaust pipes 34. The oxygen exhaust pipe 33 is connected to the ventilation pipe 51. Start the air compressor 21 to start compressing air and deliver it to the oxygen production module 31. Monitor the oxygen flow and quality in the oxygen exhaust pipe 33 and the ventilation pipe 51, as well as the gas discharge in the other gas exhaust pipe 34. According to the oxygen demand and system feedback, the control system Adjust the operating parameters of the oxygen production module 31 and adjust the air intake volume of the air compressor 21 at the same time. It should be noted that there are two oxygen production modules 31. Two oxygen production modules 31 can provide a larger oxygen output to meet the high demand in high-altitude areas. Using two oxygen production modules 31 can improve the redundancy of the system. Even if one module has a problem, the other can continue to work. The two modules can work alternately, reducing the continuous operation time of a single module, thereby reducing energy consumption. By distributing the workload, the wear of a single module is reduced, and the overall life of the equipment is extended.

[0033] For further information, see Figure 4 The air exhaust component 4 includes a drying cylinder 41 and a filter 42. The air inlet end of the drying cylinder 41 is connected to the other gas exhaust pipe 34 of the oxygen production module 31, and the air outlet end of the drying cylinder 41 is connected to the air inlet end of the filter 42. The filter 42 is provided with an air outlet pipe 43. During specific operation, the air compressor 21 and the oxygen production module 31 are started to start the oxygen production process. The other gases discharged from the oxygen production module 31 enter the drying cylinder 41 for drying treatment. The drying effect of the drying cylinder 41 is monitored by the control system to ensure that the moisture in the gas is effectively removed. The dried gas enters the filter 42 for filtration to remove possible solid particles and impurities. Finally, the treated gas is discharged to the external environment through the air outlet pipe 43. This component significantly improves the quality of the exhaust gas through drying and filtering, reduces potential pollution to the environment, and prevents these substances from damaging other components of the oxygen generator.

[0034] For details, please refer to Figure 4 A hair dryer 11 is installed on the mounting frame 1, and the air outlet end corresponds to the air compressor 21. The hair dryer 11 blows air toward the air compressor 21, which can take away the heat generated when the air compressor 21 is running. A cooler 12 is installed on the mounting frame 1, which corresponds to the air inlet end of the hair dryer 11. The setting of the cooler 12 can reduce the temperature of the air blown out by the hair dryer 11, and better dissipate heat for the air compressor 21.

[0035] In this example, see Figure 5A three-way joint 52 is installed on the ventilation pipe 51, and a gas mass flowmeter 53 is installed on one of the connecting ends of the three-way joint 52 for real-time monitoring of the flow of oxygen. The gas mass flowmeter 53 is connected to a sensor mounting base 55 through a connecting pipe 1 54, and an oxygen concentration sensor 56 is installed on the sensor mounting base 55. The sensor mounting base 55 is connected to an oxygen pressure gauge 58 through a connecting pipe 2 57 for monitoring the pressure of oxygen. A ceramic heater 531 is provided on the gas mass flowmeter 53 to keep the flowmeter working normally in a low-temperature environment. In this solution, the gas mass flowmeter 53 provides accurate measurement of the oxygen flow rate, which helps to maintain a constant oxygen supply. The oxygen concentration sensor 56 ensures real-time monitoring of the oxygen purity and guarantees the oxygen quality. The oxygen pressure gauge 58 provides real-time data of the oxygen pressure, which helps to monitor the stability of the system. The ceramic heater 531 ensures the accuracy of the flowmeter in a low-temperature environment and improves the reliability of the system under low-temperature conditions.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An improved oxygen concentrator operating in a low temperature environment, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a transmission component (2), an air source separation component (3), an air exhaust component (4) and an oxygen exhaust component (5), wherein: The transmission component (2) includes an air compressor (21) and an air heater (22), an air inlet pipe (23) is connected to the air heater (22), an exhaust pipe (24) is connected between the air heater (22) and the output end of the air compressor (21), and the air heater (22) is adjusted in real time by a control system on the oxygen concentrator; The air inlet end of the air source separation component (3) is connected to the air outlet of the air compressor (21), and the air source separation component (3) is used to separate oxygen from other gases in the air; The air inlet end of the air exhaust component (4) is connected to other gas exhaust ports on the air source separation component (3); The oxygen exhaust component (5) comprises a vent pipe (51) connected to the oxygen exhaust port on the gas source separation component (3).

2. The improved oxygen concentrator operating in a low temperature environment according to claim 1, characterized in that: The air compressor (21) is of oil-free scroll type.

3. The improved oxygen concentrator operating in a low temperature environment according to claim 1, characterized in that: The gas source separation component (3) is an oxygen production module (31), and the oxygen production module (31) is provided with an air inlet pipe (32) connected to the air outlet of the air compressor (21). The oxygen production module (31) is provided with an oxygen exhaust pipe (33) and other gas exhaust pipes (34), and the oxygen exhaust pipe (33) is connected to the ventilation pipe (51).

4. The improved oxygen concentrator operating in a low temperature environment according to claim 3, characterized in that: The number of the oxygen production modules (31) is two.

5. The improved oxygen concentrator operating in a low temperature environment according to claim 4, characterized in that: The air exhaust component (4) comprises a drying cylinder (41) and a filter (42); the air inlet end of the drying cylinder (41) is connected to the other gas exhaust pipe (34) of the oxygen production module (31); the air outlet end of the drying cylinder (41) is connected to the air inlet end of the filter (42); and the filter (42) is provided with an air outlet pipe (43).

6. The improved oxygen concentrator operating in a low temperature environment according to claim 1, characterized in that: A hair dryer (11) having an air outlet corresponding to the air compressor (21) is mounted on the mounting frame (1), and a cooler (12) corresponding to an air inlet of the hair dryer (11) is mounted on the mounting frame (1).

7. The improved oxygen concentrator operating in a low temperature environment according to claim 1, characterized in that: The ventilation pipe (51) is provided with a three-way joint (52), a gas mass flow meter (53) is provided on one of the connection ends of the three-way joint (52), the gas mass flow meter (53) is connected to a sensor mounting seat (55) via a first connecting pipe (54), an oxygen concentration sensor (56) is provided on the sensor mounting seat (55), an oxygen pressure gauge (58) is connected to the sensor mounting seat (55) via a second connecting pipe (57), and a ceramic heater (531) is provided on the gas mass flow meter (53).

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