CN112902364A

CN112902364A - Portable oxygen enrichment system for respiratory protection

Info

Publication number: CN112902364A
Application number: CN202110364478.2A
Authority: CN
Inventors: 徐连禄; 战辉; 孙琦; 刘吉宇
Original assignee: TIANBANG NATIONAL ENGINEERING RESEARCH CENTER OF MEMBRANE TECHNOLOGY CO LTD
Current assignee: TIANBANG NATIONAL ENGINEERING RESEARCH CENTER OF MEMBRANE TECHNOLOGY CO LTD
Priority date: 2021-04-05
Filing date: 2021-04-05
Publication date: 2021-06-04

Abstract

The invention discloses a portable oxygen enrichment system for respiratory protection, which comprises a fan (1), a membrane separation component (2), a vacuum pump (3) and a distribution pipeline (4). The membrane separation module (2) input is connected in fan (1), vacuum pump (3) input is connected to the output of membrane separation module (2), the output of vacuum pump (3) is through distributing pipeline (4) indoor (6) of intercommunication. And a pre-stage filter is connected between the fan (1) and the membrane separation component (2). The system further comprises a controller (5) to control the operation of the system. The invention has the beneficial effects that: the system takes air from natural environment, and filters and purifies and enriches oxygen in the air by a membrane separation and permeation mode. The concentration of the prepared oxygen-enriched air is more than 26 percent (V/V), and various pollutants in the air including dust, aerosol (PM 2.5), pollen, bacteria, mould, virus and the like are purified and filtered, so that a relatively independent healthy and safe oxygen-enriched breathing environment is created.

Description

Portable oxygen enrichment system for respiratory protection

Technical Field

The invention relates to a polymer membrane filtration and purification system, in particular to a portable oxygen enrichment system for respiratory protection.

Background

It has been considered that outdoor air is a serious air pollution. In fact, the indoor environment of buildings such as offices, living rooms, restaurants, movie theaters, dance halls, etc. has far greater impact on people's health than the outdoor environment. About 80% of the life of a person spends indoors, so the quality of indoor environment directly affects the health of the person. From a real-world perspective, indoor air quality is far inferior to outdoor atmospheric environments. The environmental protection worker reminds people: the indoor air pollution degree is usually 2-3 times more serious than that of outdoor air pollution, and in some cases, the indoor air pollution degree can even reach 10 times more serious than that of outdoor air pollution. More than 300 pollutants can be detected in the room, and 68% of human diseases are related to indoor air pollution. The pollution to the indoor air mainly comes from the following 5 aspects: firstly, human breath and smoke; second, the finishing material, daily necessities; thirdly, microorganisms, viruses and bacteria; fourthly, kitchen oil smoke; and fifthly, air conditioning syndrome. The pollutants enter the human body along with respiration, and are accumulated for a long time, so that the health of people is seriously harmed. The quality of indoor air directly influences the physiological health, the psychological health and the comfort of people. In order to improve indoor air quality, improve living and office conditions, and improve physical and mental health, indoor air pollution must be remedied.

Generally, all gases can permeate through a polymer membrane in the process that gas molecules are firstly adsorbed and dissolved on the high-pressure side surface of the membrane, then are diffused in the membrane by virtue of concentration gradient, and finally are desorbed from the low-pressure side of the membrane, so that the passing speed of small molecules and molecules with stronger polarity (such as water vapor, oxygen, carbon dioxide and the like) is higher, and the small molecules and the molecules with stronger polarity (such as water vapor, oxygen, carbon dioxide and the like) are enriched on the permeation side of the membrane; and the passing speed of the macromolecules and the molecules with weaker polarity (such as nitrogen, argon, methane, carbon monoxide and the like) is slower, and the macromolecules and the molecules with weaker polarity are retained on the retention side of the membrane and are enriched so as to achieve the purpose of separating the mixed gas. The membrane separation is to separate gas by utilizing the difference of permeation rates of various gases on a polymer membrane, and the separation driving force is the partial pressure difference of the gases on two sides of the membrane, so that the membrane gas separation has no phase change and does not need regeneration, and the membrane separation has the advantages of simple equipment, safety, reliability, low operation and maintenance cost and the like. The membrane method is used for separating and purifying the produced oxygen-enriched air, which takes the air in the nature, enriches the oxygen in the air in a physical mode, and the concentration of the produced oxygen is more than 24 percent (V/V). Is the green oxygen-enriched air which is sterile, clean, free of any dust and has the air humidity higher than the ambient humidity.

Disclosure of Invention

The invention provides a device for purifying air and enriching oxygen by a polymer membrane method, which is used for solving the problems of dizziness, glaring, unsmooth breathing and the like caused by air pollution and too low oxygen in a closed space. The oxygen-enriched air is used in plateau areas, and the purposes of reducing the altitude, improving the sleep quality and improving the thinking, behavior and working capacity are achieved. The device is used in relatively closed environment such as writing rooms, houses, passenger cars and the like, and realizes air purification and oxygen increase. Improve air quality, improve living and office conditions, and promote physical and mental health.

The technical scheme adopted by the invention for realizing the purpose is as follows: a portable oxygen enrichment system for respiratory protection comprises a fan (1), a membrane separation component (2), a vacuum pump (3) and a distribution pipeline (4). The membrane separation module (2) input is connected in fan (1), vacuum pump (3) input is connected to the output of membrane separation module (2), the output of vacuum pump (3) is through distributing pipeline (4) indoor (6) of intercommunication.

Further, a pre-filter is connected between the fan (1) and the membrane separation assembly (2).

Further, the system also comprises a controller (5) for controlling the operation of the system. And the port of the distribution pipeline (4) is connected with an air conditioning system and then is sent into a room (6).

Further, the membrane separation module (2) performs purification and nitrogen-oxygen separation under the pressure difference provided by the vacuum pump (3).

The invention has the beneficial effects that: the system takes air from natural environment, and filters and purifies and enriches oxygen in the air by a membrane separation and permeation mode. The concentration of the prepared oxygen-enriched air is more than 26 percent (V/V), and various pollutants in the air including dust, aerosol (PM 2.5), pollen, bacteria, mildew, viruses and the like are purified and filtered. Is the green oxygen-enriched air which is sterile, clean, free of any dust and has the air humidity higher than the ambient humidity. The oxygen-rich separation membrane can effectively isolate bacteria, viruses, aerosols, dust and the like in the outside air. So that bacteria and viruses do not produce cross infection due to respiratory exchange, and a relatively independent healthy and safe oxygen-enriched respiratory environment is created.

Drawings

FIG. 1 is a block diagram of a portable oxygen enrichment system for respiratory protection.

In the figure: 1. a fan; 2. a membrane separation module; 3. a vacuum pump; 4. a distribution line; 5. a controller; 6. and (4) indoor.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

As shown in figure 1, the portable oxygen enrichment system for respiratory protection comprises a fan 1, a membrane separation assembly 2, a vacuum pump 3 and a distribution pipeline 4. Fan 1 connects the 2 inputs of membrane separation subassembly, the output of membrane separation subassembly 2 is connected the 3 inputs of vacuum pump, the output of vacuum pump 3 passes through distribution pipeline 4 intercommunication indoor 6. And a pre-filter is connected between the fan 1 and the membrane separation assembly 2. The system also includes a controller 5 to control operation of the system. The fan 1 is used for providing fresh air for the membrane separation assembly; the membrane separation assembly 2 performs purification and nitrogen-oxygen separation under the pressure difference provided by the vacuum pump 3, and isolates bacteria, aerosol and dust in outdoor air; the vacuum pump 3 is used for providing the working pressure difference required by the membrane separation assembly; the distribution pipeline 4 is used for introducing the oxygen-enriched gas separated by the membrane separation component into each relatively closed space 6.

The port of the distribution pipeline 4 can be connected with an air conditioning system and then sent into the room 6, and the air conditioning system is set in a cooling/heating state according to the ambient temperature. The air purified by the system enters a relatively closed space through an air conditioning system, and the temperature and the humidity are regulated under the appropriate conditions for human bodies. Gradually replacing the air in the relatively closed space to control the oxygen concentration at 23-24% (v/v) and filtering out the pollutants such as germs, dust and the like in the air.

Claims

1. A portable oxygen enrichment system for respiratory protection is characterized by comprising a fan (1), a membrane separation component (2), a vacuum pump (3) and a distribution pipeline (4); the membrane separation module (2) input is connected in fan (1), vacuum pump (3) input is connected to the output of membrane separation module (2), the output of vacuum pump (3) is through distributing pipeline (4) indoor (6) of intercommunication.

2. The portable oxygen enrichment system for respiratory protection according to claim 1, characterized in that a pre-filter is connected between the blower (1) and the membrane separation module (2).

3. The portable oxygen-enriched system for respiratory protection as claimed in claim 1, further comprising a controller (5) to control the automatic operation of the system.

4. The portable oxygen-enriched system for respiratory protection as claimed in claim 1, wherein the port of the distribution pipeline (4) is connected with an air conditioning system and then sent into the room (6).

5. Portable oxygen-enrichment system for respiratory protection according to claim 1, characterized in that the membrane separation module (2) performs purification and nitrogen-oxygen separation under the pressure difference provided by the vacuum pump (3).