RU2745853C1 - Indoor oxygen control system - Google Patents

Abstract

FIELD: indoor oxygen control systems.

SUBSTANCE: invention relates to systems for regulating the indoor oxygen content, including a filter for cleaning the incoming air, a unit for temperature and humidity air preparation, a compressor, a gas separator, a control unit, and can be used to maintain a given indoor oxygen concentration. According to the invention, the system consists of two modules – an external one located on the external surface of the building, and an internal one located inside the room, connected by a pneumatic air line of the gas separator channel and a signal line.

EFFECT: improvement in the system operation parameters by reducing the noise level, possibility of not only increasing the oxygen concentration, but also reducing it, and expanding the temperature range of the intake air.

4 cl, 4 dwg

Description

The technical field to which the invention relates ...

The invention relates to systems for controlling the oxygen content in a room, including a filter for cleaning the incoming air, a temperature-humidity air preparation unit, a compressor, a gas separator, a control unit, and can be used to maintain a given oxygen concentration in a room.

State of the art.

The problem of controlling the oxygen concentration in rooms, especially in bedrooms and offices, has been known for a long time. The idea of obtaining air with an oxygen concentration different from normal (21%) by short-cycle adsorption and using it for human breathing is not new, and today there are many solutions. But the implementation of these solutions for the consumer comes down to either a mask or a small tent. These solutions are inconvenient, do not provide an acceptable noise level and create significant heating of the air in the room, which does not allow the consumer to sleep when these systems are in operation. Also, the available solutions can be divided into two groups: oxygen concentrators, which provide an increased content and hypoxicants, which provide a reduced oxygen content in the room. There is no implementation of devices with a control system that allows the operation of both a concentrator and a hypoxicator.

There are systems that are entirely located in a room and can maintain a given oxygen concentration. Known, for example, a system for controlling the oxygen content in a room, which includes a filter for cleaning incoming air, a unit for temperature and humidity preparation of air, a compressor, a gas separator, and a control unit. Such a system is described in the RF patent for invention No. 2645139, published in 2018.

This device is the closest in technical essence and the achieved technical result and is chosen as a prototype of the proposed invention as a device.

The disadvantage of this prototype is the high noise level from the compressor, which prevents its full use in residential premises.

Another significant drawback of this prototype is the relatively narrow temperature range of the intake air - from -10 ° C to + 25 ° C.

Also, this prototype is an oxygen concentrator and allows you to create only an increased oxygen concentration in the room, but cannot reduce it.

Disclosure of the invention.

The present invention is mainly aimed at providing a system for controlling the oxygen content in a room, which allows to improve the parameters of the system, which is the task at hand.

To achieve improved performance, the system consists of two modules - external, located on the outer surface of the building, and internal, located inside the room, interconnected by a pneumatic line of the gas separator channel, and a signal line. The external module includes: an air intake of the gas separator channel, a filter for cleaning the incoming air of the gas separator channel, a compressor and a temperature-humidity air preparation unit, which includes an air cooler after the compressor, a moisture separator, and a compressed air temperature sensor.

The indoor module includes: a compressed air gas separator for nitrogen-oxygen mixtures, a hyperoxia / hypoxia mode selection valve, a controller, a hyperoxia / hypoxia outlet into the room and an air outlet for ventilation into the room, an oxygen flow regulator and a hyperoxia flow meter, a hypoxia flow meter, a concentration sensor indoor carbon dioxide, indoor oxygen concentration sensor.

The controller is connected to an air temperature sensor and an air cooler after the compressor located in the external module, in addition, the controller is connected to a compressed air separator for nitrogen-oxygen mixtures located in the internal module, an oxygen flow regulator, a hyperoxia flow meter, a hypoxia flow meter, a carbon dioxide concentration sensor in room, oxygen concentration sensor in the room.

Thanks to these beneficial characteristics, it becomes possible to improve the parameters of the system. It becomes possible to place all noisy nodes in an external module, from where to supply compressed air inside the room, where it is already possible to carry out gas separation. In addition, it becomes possible to implement the possibility of operating the system in the mode of both an oxygen concentrator and a hypoxicator, since there is a valve for selecting the hyperoxia / hypoxia mode (flow switching mechanism) controlled by the controller. The temperature range of the air taken in from the outside also expands.

There is a variant of the invention, in which the external and internal modules are interconnected by a pneumatic line of the ventilation channel, while the external module includes: a ventilation channel filter, a blowing fan with adjustable performance, a ventilation channel temperature sensor, a ventilation channel flow meter, and a detachable connection of the ventilation channel, and the indoor module includes: a detachable connection for connecting the pneumatic line of the ventilation channel and an air temperature sensor at the outlet of the gas separator channel.

Thanks to these advantageous characteristics, it becomes possible to significantly reduce the power consumption of the system.

There is also an embodiment of the invention in which the controller has means for receiving and transmitting signals with an external computer having a control panel.

Thanks to these advantageous characteristics, it becomes possible to control the system from the control panel.

Finally, there is an embodiment of the invention in which the controller has means for receiving and transmitting signals with external control devices via a wireless network.

Thanks to these advantageous characteristics, it becomes possible to control the system from the control panel from a user's mobile device (for example, a phone).

Brief description of the drawings.

Other distinctive features and advantages of the invention will clearly follow from the description given below by way of illustration and not limiting, with reference to the accompanying drawings, in which:

- figure 1 schematically depicts a functional diagram of a system for controlling the oxygen content in a room according to the invention,

- figure 2 schematically depicts a functional diagram of a system for regulating the oxygen content in a room according to the invention, in a variant with a ventilation duct,

- figure 3 schematically depicts the stages of operation of the system according to the invention,

- figure 4 schematically depicts the stages of operation of the system according to the invention, in the variant with a ventilation duct.

The figures indicate:

1 - external module

1.1 - air intake of the gas separator channel

1.2 - filter for cleaning the incoming air of the gas separator channel

1.3 - compressor

1.4 - air cooler after the compressor

1.5 - moisture separator

1.6 - compressed air temperature sensor

1.7 - detachable connection of the gas separator channel

1.8 - air intake of the ventilation channel

1.9 - ventilation channel filter

1.10 - blowing fan with variable capacity

1.11 - ventilation duct temperature sensor

1.12 - ventilation channel flow meter

1.13 - detachable connection of the ventilation channel

2 - indoor module

2.1 - gas separator of compressed air for nitrogen-oxygen mixtures

2.2 - oxygen flow regulator

2.3 - flowmeter of hyperoxia

2.4 - hypoxia flow meter

2.5 - valve mechanism for switching hyperoxia / hypoxia

2.6 - oxygen concentration sensor in the channel

2.7 - air outlet for ventilation into the room

2.8 - exit of hyperoxia / hypoxia into the room

2.9 - channel for dumping excess gas into the atmosphere

2.9.1, 2.9.2 - connectors of the reset channel 2.9

2.10 - controller

2.11 - detachable compressed air supply connection

2.12 - indoor carbon dioxide concentration sensor

2.13 - oxygen concentration sensor in the room

2.14 - computer with control panel

2.15 - storage buffer

2.16 - gas reducer

2.17 - manual flow regulator

2.18 - air flow regulator for ventilation

2.19 - air flow meter for ventilation

2.20 - detachable connection for connecting the pneumatic line of the ventilation channel

2.21 - air temperature sensor at the outlet of the gas separator channel

3 - room

4 - gas separator pneumatic line

41, 42 - detachable connections of the pneumatic line 4 of the gas separator

5 - wall

6 - channel connecting the room with the atmosphere

7 - mobile device

8 - wireless switch

9 - pneumatic line of the ventilation channel

9.1, 9.2 - detachable connections of the pneumatic line 9 of the ventilation channel.

According to Figures 1 and 2, the system consists of two modules - external 1, located on the outer surface of the building, and internal 2, located inside the room 3, interconnected by the pneumatic line of the gas separator 4 and the signal line shown in dotted lines.

The external module 1 contains an air intake for the gas separator channel 1.1, a filter 1.2 for cleaning the incoming air of the gas separator channel, compressor 1.3, an air cooler after compressor 1.4 and a water separator 1.5, a compressed air temperature sensor 1.6, a detachable connection of the gas separator channel 1.7

Optionally, there may also be a ventilation channel filter 1.9, a blowing fan with an adjustable capacity of 1.10, a ventilation channel temperature sensor 1.11, a ventilation channel flow meter 1.12, and a detachable ventilation channel 1.13.

The internal module 2 contains a compressed air gas separator for nitrogen-oxygen mixtures 2.1, an oxygen flow regulator 2.2, a hyperoxia flow meter 2.3, a hypoxia flow meter 2.4, a valve mechanism for switching hyperoxia / hypoxia 2.5, an oxygen concentration sensor in channel 2.6, air outlet for ventilation into the room 2.7 , exit of hyperoxia / hypoxia into the room 2.8, the channel for dumping excess gas into the atmosphere 2.9, detachable connections of the discharge channel 2.9.1, 2.9.2, controller 2.10, detachable connection for compressed air supply 2.11, sensor for carbon dioxide concentration in the room 2.12, oxygen concentration sensor in room 2.13, storage buffer 2.15, gas reducer 2.16, manual flow regulator 2.17, air flow regulator for ventilation 2.18, air flow meter for ventilation 2.19.

Optionally, there can also be a detachable connection for connecting the pneumatic line of the ventilation duct 2.20, an air temperature sensor at the outlet of the gas separator duct 2.21

Controller 2.10 can have a means of receiving and transmitting signals with an external computer 2.14, which has a control panel

The control panel 2.14 can have means for receiving and transmitting signals and has the ability to set operating parameters both from the touch display and from the user's mobile device 7 via a wireless network.

Implementation of the invention.

The oxygen control system in the room works as follows. According to figure 3:

Stage A1. The outdoor module 1 is preliminarily placed on the outer part of the building, for example, on the facade, roof. Indoor unit 2 is placed on the wall or ceiling of room 3 and is connected by pneumatic line 4 and signal line to outdoor unit 1.

Stage A2. By means of the external module 1, air is taken from the atmosphere through the filter 1.2 for cleaning the incoming air of the channel.

Stage A3. It is compressed by an oil-free compressor 1.3.

Stage A4. Air is prepared (cooled / dehumidified) by blocks 1.4 and 1.5 of air cooling after the compressor and moisture separation.

Stage A5. The compressed and treated air is fed through the pneumatic line 4 to the indoor module 2 to the storage buffer 2.15

Stage A6. Air is separated into nitrogen-oxygen mixtures by means of a 2.1 silent gas separator connected to the 2.15 storage buffer through a 2.16 reducer and a 2.17 manual flow regulator

Stage A7. Oxygen-enriched / depleted air is supplied to the room through the hyperoxia / hypoxia outlet to the room 2.8.

Stage A8. The remaining nitrogen-oxygen mixture is discharged into the atmosphere by discharging excess gas into the atmosphere 2.9.

Stage A9. Provide ventilation air into the room through the flow meter 2.19 and outlet 2.7

Stage A10. The system is automatically controlled to maintain a predetermined oxygen concentration in the room. Controller 2.14 collects data from air temperature sensor 1.6, air flow meters 2.3, 2.6, 2.19, sensors 2.6, 2.13 of oxygen concentration in the duct and room, sensor 2.14 of carbon dioxide concentration in the room and controls flow switching valves 2.5 and flow regulators 2.2, 2.18. The parameters to be set are set either from the control panel 2.17, or by means of a mobile application installed on a mobile device 7.

In the variant of additional use of the ventilation channel, the system operates as follows. According to figure 4:

Stage B1. The outdoor module 1 is preliminarily placed on the outer part of the building, for example, on the facade, roof. Indoor module 2 is placed on the wall or ceiling of room 3 and connected by pneumatic lines 4, 9 and a signal line to the outdoor module 1.

Stage B2. By means of the external module 1, air is taken from the atmosphere through the coarse filter 1.2 into the gas separator channel.

Stage B3. It is compressed with an oil-free compressor 1.3

Stage B4. Air preparation (cooling / dehumidification) is carried out by units 1.4 and 1.5 of cooling and moisture separation.

Stage B5. Compressed and treated air is supplied through pneumatic line 4 to indoor unit 2

Stage B6. Air is separated into nitrogen-oxygen mixtures by means of a silent gas separator 2.1

Stage B7. Oxygen-enriched / depleted air is supplied to the room through outlet 2.8

Stage B8. The remaining nitrogen-oxygen mixture is discharged into the atmosphere through the air channel 2.9

Stage B9. Using the external module 1, air is drawn from the atmosphere through a coarse filter 1.9 into the ventilation channel

Stage B10. By means of a blowing fan 1.10, air is pumped into the ventilation channel at a given flow rate

Stage B11. The air of the ventilation system is supplied through the pneumatic line 9 to the indoor module 2, from where it is fed into the room through the air duct 2.7

Stage B12. The system is automatically controlled to maintain a predetermined oxygen concentration in the room. Controller 2.10 collects data from air temperature sensors 1.6, 1.11, 2.21, air flow meters 1.12, 2.3, 2.4, sensors 2.6, 2.13 of oxygen concentration in the room and controls flow switching valves 2.5 and flow regulator 2.2. The set parameters are set either from the control panel 2.14, or through a mobile application installed on a mobile device 7.

Industrial applicability.

The system for controlling the oxygen content in the room can be carried out by a specialist in practice and, when implemented, ensures the implementation of the declared purpose, which makes it possible to conclude that the criterion of "industrial applicability" for the invention is met.

In accordance with the proposed invention, a prototype of a system for controlling the oxygen content in a room has been manufactured. The tests were carried out in a dedicated isolated volume of 5 cubic meters indoors. Outdoor unit 1 with one compressor 1.3 and a variable speed blower fan was located outside. Indoor module 2 with one gas separator 2.1 was located inside the allocated volume in room 3 near the wall, outside of which outdoor module 1 was located.

The following nodes were used:

1) Two compressors ZW700A-70/7

2) Oxyom S1 gas separator of our own production. This concentrator normally provides 15 l / min of air with 78% oxygen concentration and 75 l / min of air with 14% oxygen concentration.

3) Flowmeters and flow controllers of our own production.

4) The valve mechanism is a pneumatic valve 4/2 BURKERT 5413G.

5) Own-made controller based on Waweshare xcore 407 i board with available ethernet interface.

6) Panel computer IPC-M10R800-A3288 as control panel.

Tests of the prototype of the system showed that it provides the ability to take air in the temperature range from -20 ° C to + 30 ° C and automatically maintain the set oxygen concentration in the room in the range from 15 to 28%. At the same time, the system works almost silently. The average noise level inside the isolated volume was 39 and 46 dB with the system off and on, respectively.

Thus, due to the fact that the system consists of two modules - external, located on the outer surface of the building, and internal, located inside the room, connected by pneumatic lines of the gas separator channel and a signal line, with the installed blocks described above, and the declared technical the result, namely: the ability to work in a wide range of external temperatures with a low noise level inside the room during the operation of the system. The presence of a flow switch allows the system to operate both in the mode of an oxygen concentrator and a hypoxicator. All this improves the parameters of the system.

The proposed system can be effectively used for long-term comfortable stay in a hypoxic or hyperoxic normobaric atmosphere by ventilating the room with a gas mixture with an increased nitrogen content or with an increased oxygen content, as well as maintaining a given composition for a long time using existing technologies for separating air into oxygen, nitrogen and other components. ...

In addition, the additional effects are as follows:

• ease of use due to the separation of modules;

• pneumatic actuators F24F 3/14 small diameter strap in the version without additional separate ventilation. Laying a pneumatic line through a wall is comparable in terms of labor costs for laying a cable; a channel in the wall can be drilled out rather than gouged out.

Claims (4)

1. A system for controlling the oxygen content in the room, including a filter for cleaning the incoming air, a temperature-humidity air preparation unit, a compressor, a gas separator, a controller, characterized in that the system consists of two modules - an external one, located on the outer surface of the building, and an internal one, located inside the room, interconnected by a pneumatic line of the gas separator channel and a signal line, and the external module includes an air intake for the gas separator channel, a filter for cleaning the incoming air of the gas separator channel, a compressor and a temperature-humidity air preparation unit, including an air cooler after the compressor, a moisture separator, a compressed air temperature sensor air, and the indoor module includes: a compressed air gas separator for nitrogen-oxygen mixtures, a hyperoxia / hypoxia mode selection valve, a controller, hyperoxia / hypoxia outlet into the room and air outlet for ventilation into the room, oxygen flow regulator and a hyperoxia flow meter, hypoxia flow meter, carbon dioxide concentration sensor in the room, oxygen concentration sensor in the room, while the controller is connected to the air temperature sensor located in the external module and the air cooler after the compressor, in addition, the controller is connected to the gas separator located in the internal module compressed air for nitrogen-oxygen mixtures, oxygen flow regulator, hyperoxia flow meter, hypoxia flow meter, indoor carbon dioxide concentration sensor, indoor oxygen concentration sensor. 2. The system according to claim 1, characterized in that the external and internal modules are also connected to each other by a pneumatic line of the ventilation channel, while the external module includes a ventilation channel filter, a blower with adjustable capacity, a ventilation channel temperature sensor, a ventilation channel flow meter, and detachable connection of the ventilation duct, and the indoor module includes a detachable connection for connecting the pneumatic line of the ventilation duct and an air temperature sensor at the outlet of the gas separator duct. 3. The system according to claim 1, characterized in that the controller has means for receiving and transmitting signals from an external computer having a control panel. 4. The system according to claim 1, characterized in that the controller has means for receiving and transmitting signals with external control devices via a wireless network.

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