JP3111440U - Oxygen concentrator using oxygen-enriched membrane - Google Patents

Abstract

In an oxygen concentrator using an oxygen-enriched membrane having a card timer function for business use, an automatic operation drying mode is provided to dry the inside of a pipe and make it hygienic.
An electromagnetic valve 2 is installed in the middle of a pipe connected to a vacuum pump 3 from the oxygen-enriched membrane 1 in FIG. 1, and when the card timer is turned off by a controller 11, the vacuum pump is restarted for 2 minutes. Opening the solenoid valve introduces outside air into the vacuum pump and uses the heat from the vacuum pump to dry the pump.
[Selection] Figure 1

Description

The present invention relates to an oxygen-enriched membrane concentrator, and more particularly to moisture drying in air extracted by an oxygen-enriched membrane unit and an automatic drying mode in conjunction with a card timer.

Conventional oxygen enriched membrane concentrators use a diaphragm vacuum pump to achieve a high vacuum.
To remove moisture from the extracted air, use a moisture absorbing material, a water bottle, a small water tank in the middle of the spout pipe, and a fan for inserting outside air. Etc. are being implemented.

This time, an electronic controller was developed to simplify the accessories for drying by using a piston-type vacuum pump using a linear motor and to link it with a card timer.
JP 2002-119594 A

The problem to be solved is to prevent the moisture of the extracted air from condensing in the vacuum pump after operation and causing rusting.
During operation, the vacuum pump is hot and water droplets are difficult to adhere, and the generated water is mostly removed by passing through a water bottle.
It is intended for commercial use, considering long-term continuous operation and use in a high humidity environment such as a bath. Furthermore, conventional water removal methods cannot provide sufficient countermeasures for large-capacity devices.

In the present invention, an electromagnetic valve 2 is installed in the middle of a pipe connected to the vacuum pump 3 from the oxygen-enriched film 1 in FIG. 1, and when the card timer is turned off by the controller 11, the vacuum pump is restarted for 2 minutes, and the electromagnetic Opening the valve introduces outside air into the vacuum pump and uses the heat of the vacuum pump to dry the inside of the pump.
There was no precedent for restarting operation when the card timer was OFF, and it was necessary to develop a controller for control.

As the oxygen concentrator for rentals, the industry's smallest was realized, and the housing design was also achieved by providing a vacuum pump at the deepest part of the device and increasing the weight of the housing, resulting in low noise and low vibration.
With the addition of a solenoid valve, a controller, and a DC power supply for the controller, the design flexibility can be increased even in the future by adding display LEDs.

When a card is inserted into the card timer shown in FIG. 2, the apparatus is turned on.
Outside air is taken in from A in FIG. The air that has passed through the oxygen-enriched membrane 1 seems to have a reduced oxygen concentration due to the characteristics of the membrane. The pump is cooled when passing through the vacuum pump installation space B.
After passing through the fan motor 4, it passes through the negative ion generator 5 and is discharged from the outlet 14.
When the card timer is turned off, the vacuum pump 3 and the fan motor 4 are stopped.
After that, the electronic controller detects the timer OFF, turns on the solenoid valve 2, introduces outside air, and restarts the vacuum pump and fan motor. Turn off all power after 2 minutes of operation.
The air extracted from the oxygen-enriched film 1 passes through the linear vacuum pump 3 and is sent to the water bottle 6.

Widely used in business such as beauty barber shop, hotel, massage industry.
By realizing this drying process, it is possible to easily develop a device having a larger flow rate.
The supersaturated oxygen water can be made in a short time by using the large flow rate of 4 L / min.
This drying method can also be used for larger outdoor unit type 20 L oxygen concentrators per minute.
In that case, a drying operation is required once every 30 minutes or once every 60 minutes.

The cross-sectional view of an oxygen concentrator. The front view of an oxygen concentrator. Figure of supersaturated oxygen water generation nozzle

Explanation of symbols

1 Oxygen-enriched membrane unit 2 Plunger 3 Linear vacuum pump 4 Fan motor 5 Negative ion generator 6 Water bottle 7 L-shaped tube 8 Water bottle insertion port 9 Timer 10 Power switch
11 controller 12 housing 13 card timer 14 negative ion outlet 15 supersaturated oxygen water generating nozzle 16 check valve

Claims (2)

In an oxygen concentrator that combines a linear vacuum pump (with a cylinder part installed in the pump housing) and a card timer, the oxygen-enriched membrane unit is used from the air sucked into the housing by a fan. The oxygen-enriched membrane concentrator is configured to extract oxygen-enriched air and to dry the moisture contained in the extracted air by introducing outside air using a control circuit and a solenoid valve after the operation is completed. . Introduce oxygen-enriched air into the water at a high flow rate of 4L per minute to create supersaturated oxygen water in a short time, and utilize the high flow rate. At that time, install a check valve in the middle of the pipe and connect it to the vacuum pump. The oxygen-enriched membrane concentrator according to claim 1, which prevents water backflow.

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