Oxygen generator detection device

Abstract

The utility model discloses an oxygenerator detection device, which is used for testing the oxygen generation concentration of an oxygenerator in different environments, and comprises an environment box, the environment box comprises a box body, a compressor, a condenser and an evaporator, the compressor, the condenser and the evaporator are arranged in the box body, the outlet of the condenser is communicated with the inlet of the evaporator, and the outlet of the condenser is communicated with the outlet of the evaporator. An outlet of the evaporator is communicated with an inlet of the compressor, an outlet of the compressor is communicated with an inlet of the condenser, and the environment box is externally connected with a temperature and humidity sensor through a sensing interface. The temperature and humidity sensor is connected with the upper computer through a serial port; the programmable power supply is arranged in the box body, and the programmable power supply is connected with the oxygen generator; the oxygen analyzer is arranged in the box body, and an inlet of the oxygen analyzer is connected with an outlet of the oxygen generator. The oxygenerator detection device disclosed by the utility model can provide specific environmental conditions for testing at any time, so that the oxygen generation concentration of the oxygenerator in an extreme environment can be tested at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to an oxygen generator detection device. Background Art

[0002] As people's living standards continue to improve, people's pursuit of health is also increasing, and home medical devices are increasingly entering people's lives. Especially in recent years, respiratory diseases have occurred frequently, people's health has been strongly impacted, and home oxygen concentrator products have become an indispensable device in people's lives.

[0003] The goal of oxygen therapy is to maintain oxygen saturation greater than 90% in patients requiring supplemental oxygen, while the flow rate of oxygen delivery can be adjusted for rest, exercise, and sleep to meet the needs of individual patients under these different conditions.

[0004] Before an oxygen concentrator enters the market, it needs to be tested to see if it can meet the above-mentioned supply conditions. Existing oxygen concentrator detection devices can only test whether the concentration of oxygen produced by the oxygen concentrator under current conditions is qualified. However, the working efficiency of the oxygen concentrator is different under different environmental conditions, especially in extreme weather conditions, which will seriously affect the operation of the oxygen concentrator. Therefore, an oxygen concentrator that is qualified when tested using the existing oxygen concentrator detection device may also fail to meet the oxygen concentration requirements in extreme environments. Utility Model Content

[0005] In order to overcome the defects in the prior art, the utility model provides an oxygen concentrator detection device, which can provide specific environmental conditions for testing at any time, so as to realize the testing of the oxygen concentration of the oxygen concentrator under extreme environment at any time.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an oxygen concentrator detection device, which is used to test the oxygen concentration of the oxygen concentrator under different environments, comprising:

[0007] An environmental box, the environmental box comprising a box body and a compressor, a condenser and an evaporator arranged in the box body, the outlet of the condenser is communicated with the inlet of the evaporator, the outlet of the evaporator is communicated with the inlet of the compressor, the outlet of the compressor is communicated with the inlet of the condenser, the environmental box is externally connected to a temperature and humidity sensor through a sensing interface, the compressor, the condenser and the evaporator are used to adjust the temperature and humidity in the box body, so as to provide different test environments for the oxygen concentrator;

[0008] Host computer, the temperature and humidity sensor is connected to the host computer via a serial port;

[0009] A programmable power supply, which is disposed in the box and connected to the oxygen concentrator;

[0010] An oxygen analyzer is arranged in the box, and an inlet of the oxygen analyzer is connected to an outlet of the oxygen concentrator.

[0011] Through the above technical solution, an environmental chamber is used to provide various extreme environmental conditions required for testing, and a programmable power supply is used to provide extreme supply pressure conditions for the oxygen concentrator, so that the oxygen concentration of the oxygen concentrator under various extreme environmental conditions can be tested at any time to see whether it is qualified.

[0012] Furthermore, the programmable power supply is connected to the host computer via a communication interface, and the host computer can adjust the supply voltage of the programmable power supply to achieve remote control of the supply voltage of the oxygen concentrator.

[0013] Furthermore, the inlet of the oxygen analyzer and the outlet of the oxygen concentrator are connected through a connecting pipe, and the connecting pipe is provided with an air resistance port, and the air resistance port is externally connected to a standard air resistance. The air resistance port is used to provide circulating air to simulate the human body's oxygen inhalation environment, so that the test result is more accurate.

[0014] Furthermore, the environmental chamber includes an air pressure regulating device disposed in the chamber, and the air pressure regulating device is used to adjust the air pressure value in the chamber.

[0015] Furthermore, the environmental box is connected to an air pressure sensor via a sensor interface, and the air pressure sensor is connected to the host computer via a serial port. The host computer can remotely detect the temperature, humidity and air pressure values ​​in the environmental box.

[0016] Furthermore, a flow meter is connected between the inlet of the oxygen analyzer and the outlet of the oxygen concentrator. Because the requirements for oxygen concentration under different flow rates are different, a flow meter is provided to detect the gas flow rate, so as to determine whether the oxygen concentration in the gas is qualified according to the flow rate.

[0017] Furthermore, an adjustable flow valve is connected between the inlet of the oxygen analyzer and the outlet of the oxygen generator. The adjustable flow valve is used to adjust the gas flow to achieve the purpose of controlling the variable.

[0018] Furthermore, the oxygen analyzer is connected to the host computer, and the detection result of the oxygen analyzer can be sent to the host computer and saved. Through the control of the host computer, automatic detection can be achieved. The device automatically saves the test data without manual recording, making the test process more convenient.

[0019] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. In the present application, the environmental variables can be adjusted at any time by setting up the environmental chamber, and the extreme environment can be provided for the oxygen concentrator at any time, so as to test whether the oxygen concentration of the oxygen concentrator is qualified under various extreme environments. However, an oxygen concentrator that has passed the test of the existing testing device may still fail to meet the requirements when working under extreme environmental conditions. The oxygen concentrator detection device disclosed in the present application can test the working performance of the oxygen concentrator under extreme environmental conditions in advance;

[0021] 2. The present application is provided with an air resistance port. When testing the oxygen concentration of the gas produced by the oxygen concentrator, the air resistance port is connected to a standard air resistance, and the air resistance port is used to provide circulating air to simulate the human body's oxygen inhalation environment, thereby ensuring the accuracy of the test results.

[0022] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall device structure of the oxygen concentrator detection device in the embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the connection of various devices in the environmental box in the embodiment of the utility model.

[0026] The figure numbers of the above drawings are: 1. Environmental chamber; 2. Oxygen generator; 3. Oxygen analyzer; 4. Programmable power supply; 5. Temperature and humidity sensor; 6. Air pressure sensor; 7. Adjustable flow valve; 8. Flow meter; 9. Air resistance port. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] Example: Combination Figure 1-2 As shown, this embodiment discloses an oxygen concentrator detection device for testing the oxygen concentration of the oxygen concentrator under different environments, including:

[0030] The environmental box 1 is used to provide different test environments for the oxygen concentrator 2, and the oxygen concentrator 2 is placed in the environmental box 1. The environmental box 1 can simulate the environment to adjust the temperature, humidity and air pressure, and is used to provide an extreme test environment for the oxygen concentrator 2.

[0031] The environmental box includes a box body and a compressor, a condenser and an evaporator arranged in the box body. The outlet of the condenser is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the inlet of the compressor, and the outlet of the compressor is connected to the inlet of the condenser. The compressor, condenser and evaporator cooperate to control the temperature and humidity in the box body.

[0032] The box is also provided with an air pressure regulating device, which is connected to the outside world, and the air pressure value in the box can be adjusted by the air pressure regulating device. It should be noted that the air pressure regulating method in the present application can be the regulating method mentioned in CN117006770A, a method for regulating indoor air pressure in a refrigeration device and a refrigeration room, published on November 7, 2023.

[0033] Optionally, the oxygen concentrator 2 may be an oxygen production device such as an oxygen concentrator. The most common oxygen concentrator uses a molecular sieve bed environment to screen and filter oxygen from ambient air, and the concentration of the produced oxygen is generally 82%-96%.

[0034] An oxygen analyzer 3 is provided in the environmental box 1, and the outlet of the oxygen generator 2 is connected to the inlet of the oxygen analyzer 3. The oxygen analyzer 3 is an oxygen content analyzer, which can quickly and accurately evaluate the content and proportion of gas components.

[0035] A flow meter 8 is connected between the inlet of the oxygen analyzer 3 and the outlet of the oxygen concentrator 2. Because the requirements for oxygen concentration at different flow rates are different, a flow meter is provided to detect the gas flow rate, so as to judge whether the oxygen concentration in the gas is qualified according to the flow rate. For example, at a flow rate of 3L / min, an oxygen concentration of about 80% is qualified.

[0036] An adjustable flow valve 7 is also connected between the inlet of the oxygen analyzer 3 and the outlet of the oxygen generator 2. The adjustable flow valve 7 is used to control the fluid flow during the test to achieve the purpose of controlling the variable.

[0037] The oxygen concentrator 2 is connected to a programmable power supply 4, which supplies power to the oxygen concentrator 2. The output voltage and current of the programmable power supply 4 can be controlled by computer software programming. The programmable power supply 4 is connected to a host computer (not shown in the figure).

[0038] In this embodiment, the host computer is a computer, and the programmable power supply 4 is connected to the computer through a signal line, and the computer can adjust the supply voltage of the programmable power supply 4 in real time to test whether the concentration of oxygen produced by the oxygen concentrator 2 under different supply pressure conditions is qualified.

[0039] The oxygen analyzer 3 is connected to the computer via a signal line, and the computer can record the detection results of the oxygen analyzer 3. Compared with the manual recording of test results in the existing test, the oxygen concentrator detection device disclosed in the present application can automatically record the test results, which is more convenient.

[0040] It should be noted that the concentration of oxygen produced by the oxygen concentrator 2 is generally 82% to 96%. The so-called qualified means that the oxygen concentration is greater than or equal to 82%.

[0041] The environmental box 1 is connected to the computer via a serial port, and the computer can remotely adjust the environmental variables in the environmental box 1. The environmental variables include environmental conditions such as temperature, humidity, and air pressure.

[0042] The environmental chamber 1 is connected to the temperature and humidity sensor 5 and the air pressure sensor 6 through a sensor interface. The temperature and humidity sensor 5 and the air pressure sensor 6 are connected to the computer through a serial port. The temperature and humidity sensor 5 and the air pressure sensor 6 detect the temperature, humidity and air pressure in the environmental chamber in real time, and transmit the detected values ​​to the computer. By observing the values ​​detected by the temperature and humidity sensor 5 and the air pressure sensor 6, it is also possible to determine whether the preset conditions have been met in the environmental chamber 1 to ensure the accuracy of the test.

[0043] The inlet of the oxygen analyzer 3 and the outlet of the oxygen concentrator 2 are connected through a connecting pipe, and the connecting pipe is provided with an air resistance port 9, and the air resistance port 9 is externally connected to a standard air resistance. The air resistance port 9 is used to provide circulating air to simulate the human body's oxygen inhalation environment and ensure the accuracy of the test results.

[0044] Through the above technical solution, an environmental chamber is used to provide various extreme environmental conditions required for testing, so that the oxygen concentration of the oxygen generator under various environmental conditions can be tested at any time to see whether it is qualified.

[0045] The test method of the above oxygen concentrator detection device is as follows:

[0046] Fully open the adjustable flow valve 7, set the oxygen concentrator 2 to the maximum rated flow, and after the oxygen concentrator 2 is stable, connect the standard air block to the air block port 9, and use the air block port to provide circulating air to simulate the human body's oxygen inhalation environment;

[0047] Ensure that the environmental variables are the same, control the programmable power supply 4 by computer to make its supply pressure value 85% of the minimum rated voltage of the oxygen generator 2, and repeat the test of oxygen concentration by oxygen analyzer 3;

[0048] The programmable power supply 4 is controlled by a computer to make its supply pressure value 110% of the maximum rated voltage of the oxygen generator 2, and the oxygen concentration is repeatedly tested by the oxygen analyzer 3;

[0049] The environmental variables other than temperature are controlled to be the same. Under nominal voltage power supply, the environment box 1 is adjusted to the minimum and maximum rated operating temperatures by computer, and the oxygen concentration is measured repeatedly respectively;

[0050] The environmental variables other than the air pressure are controlled to be the same. Under the nominal voltage supply, the environmental chamber 1 is adjusted to the rated minimum and maximum ambient atmospheric pressures through a computer, and the oxygen concentration is repeatedly measured respectively;

[0051] The environmental variables other than humidity are controlled to be the same. Under nominal voltage power supply, the environment chamber 1 is adjusted to the rated minimum relative humidity through the computer and wait for 6 hours, and the oxygen concentration is measured repeatedly;

[0052] The environmental variables other than humidity and temperature are controlled to be the same. Under nominal voltage power supply, the environment chamber 1 is adjusted to the rated maximum relative humidity and the maximum rated temperature through a computer and wait for 6 hours, and the oxygen concentration is measured repeatedly.

[0053] It should be noted that the oxygen generator detection device disclosed in this application is based on the domestic standard YY 9706.269-2021.

[0054] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An oxygen concentrator detection device, used to test the oxygen concentration of an oxygen concentrator under different environments, characterized in that: include: An environmental box, the environmental box comprising a box body and a compressor, a condenser and an evaporator arranged in the box body, the outlet of the condenser is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the inlet of the compressor, the outlet of the compressor is connected to the inlet of the condenser, and the environmental box is externally connected to a temperature and humidity sensor through a sensor interface; Host computer, the temperature and humidity sensor is connected to the host computer via a serial port; A programmable power supply, which is disposed in the box and connected to the oxygen concentrator; An oxygen analyzer is arranged in the box, and an inlet of the oxygen analyzer is connected to an outlet of the oxygen concentrator.

2. The oxygen concentrator detection device according to claim 1, characterized in that: The programmable power supply is connected to the host computer via a communication interface, and the supply voltage of the programmable power supply can be adjusted by the host computer.

3. The oxygen concentrator detection device according to claim 1, characterized in that: The inlet of the oxygen analyzer and the outlet of the oxygen concentrator are communicated through a connecting pipe, and the connecting pipe is provided with an air resistance port, and the air resistance port is externally connected to a standard air resistance.

4. The oxygen concentrator detection device according to claim 1, characterized in that: The environmental box includes an air pressure regulating device disposed in the box body, and the air pressure regulating device is used to adjust the air pressure value in the box body.

5. The oxygen concentrator detection device according to claim 4, characterized in that: The environmental box is externally connected to an air pressure sensor via a sensor interface, and the air pressure sensor is connected to the host computer via a serial port.

6. The oxygen concentrator detection device according to claim 1, characterized in that: A flow meter is connected between the inlet of the oxygen analyzer and the outlet of the oxygen generator.

7. The oxygen concentrator detection device according to claim 1 or 6, characterized in that: An adjustable flow valve is connected between the inlet of the oxygen analyzer and the outlet of the oxygen generator.

8. The oxygen concentrator detection device according to claim 7, characterized in that: The oxygen analyzer is connected to the host computer, and the host computer can record the detection result of the oxygen analyzer.

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