JPS62231674A - Air humidifier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas humidifier for gas inhalation therapy, which is capable of adjusting the relative humidity of gas discharged from a warmer.

[Conventional technology]

Medical gases used for respiratory therapy include, for example, oxygen gas. Oxygen gas is either filled in a cylinder or used by concentrating oxygen gas in the air using an oxygen concentrator. These oxygen gases from oxygen cylinders and some types of oxygen concentrators are dry, so if you inhale them as they are, the mucous membranes in your nostrils and throat will dry out, and there is a strong possibility that they will become irritated. , use a humidifier to add humidity to that gas.

The humidifier commonly used in the past is the one shown in Figure 6, which penetrates the upper end of the humidifier body container 2 made of transparent plastic or the like and forms an L-shape near the bottom of the container. A gas introduction pipe 4 having a bubble generating section 3 having a large number of pores at its bent tip is introduced, and a gas outlet pipe 5 with a tube 6 fitted around the tip thereof is protruded near the upper end of the side surface of the main container 2. A space 7 for gas to accumulate is secured in the upper part of the main body container 2, and the humidifying liquid is placed so that the water surface is above the bubble generating part 3 at the tip of the gas introduction pipe 4. The kiln distilled water 8 is charged, and the dry gas introduced through the gas introduction pipe 4 from the gas supply pipe 9 is dispersed and passed through the water to humidify the water, and the water is passed through the tube 6 from the gas outlet 10 of the gas discharge pipe 5 as a humidified gas. It is sent to a destination.

[Problem that the invention seeks to solve]

In the case of conventional humidifiers, the humidity of the gas that passes through the gas introduction pipe, passes through the humidifying section, which is the bubble generating section in the water, and disperses through the water as bubbles is almost 100% relative humidity, and the humidity is almost 100% relative humidity. When using a long tube attached to a container, if the tube is exposed to the outside air of a cold room while transporting gas to the destination, it will cool down and condense inside the tube, becoming water droplets and staying there, interfering with the gas delivery. There was a problem in that it caused

The present invention addresses these problems with conventional humidifiers, and makes it possible to adjust the relative humidity of the gas discharged from the humidifier by attaching a long tube to the humidifier.
A gas humidifier that does not cause condensation and water droplets to condense inside the tube and interfere with gas delivery, even if the tube is exposed to the outside air in a cold room and cools down. The purpose is to provide the following.

[Means for solving problems]

In the gas humidifier according to the present invention, a main container is filled with a humidifying liquid to form a humidifying part and a space, and a gas introduction pipe introduced from outside the container is inserted into the humidifying part in the main container. The tip is immersed in the humidifying part, and a dividing means and a dividing flow rate adjusting means are provided for dividing dry gas for humidity adjustment from the gas introduction pipe into the space, so that the dry gas and the humidifying gas can be divided into the space. It is characterized in that the relative humidity of the gas discharged from the main container is adjusted.

[Effect]

The gas humidifier according to the present invention adjusts the amount of dry gas introduced into the humidifying section and the space by adjusting the branching section ff11m of the dry gas distributing means provided in the gas introduction pipe of the pressure filter. However, the relative humidity of the gas discharged from the humidifier can be adjusted by adjusting the mixing ratio of the dry gas and humidified gas mixed in the retention space within the humidifier main body container.

〔Example〕

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 shows one embodiment of a gas humidifier according to the present invention.

The gas humidifier 1 has a gas introduction mechanism that penetrates the upper end surface of a humidifier body container 32 made of transparent plastic or the like, and has a bubble generating section 3 with a large number of pores at the tip bent into an L shape near the bottom of the container. A tube 4 is introduced, and a gas outlet tube 5 with a tube 6 fitted at its tip is protruded near the upper end of the side surface of the container body 2.
As shown in FIG. 2, when a necessary amount, for example 200 cc, of a humidifying liquid as a humidifier is put into the container main body 2, the lowest hole 11-a is inserted into the gas introduction pipe 4.
be located above the water surface and have an appropriate size,
For example, the holes 11 with a diameter of 0 mm and 9 mm are arranged at appropriate intervals, for example,
A masking tube 12, which is made of an elastic member such as rubber and is made of an elastic member such as rubber and which closes the gas distribution hole 11, is slidably fitted onto the gas introduction pipe 4 as a gas distribution flow adjusting means. It will be done.

Humidification of gas by the gas humidifier is performed as follows.

First, add? If it is not necessary to adjust the relative humidity of the gas, use the gas flow dividing hole 11, which is a flow dividing means provided in the gas introduction pipe 4, to divide the flow.
The dry gas entering from the gas population 9 of the gas introduction pipe 4 is not diverted (all of it passes from the gas introduction pipe 4 through the bubble generation part 3 with many pores into the water which is the humidification part). Dispersion.The dry gas that passes through the water while generating bubbles is humidified into gas with a relative humidity of nearly 100%.
The gas reaches the water-free gas retention space 7 and is passed through the tube 6 from the gas outlet 10 of the gas derivation pipe 5 to the target location.

Next, if you need to adjust the relative humidity of the humidifier,
For example, when the tube 6 that carries humidified gas from the humidifier 1 to the destination passes through a place where the temperature is lower than the place where the humidifier 1 is located, the gas flow dividing hole 11, which is the flow dividing means provided in the gas introduction pipe 4, is closed. The gas distribution hole 11 is opened by sliding the masking tube 12, which is a distribution flow rate adjustment means, up and down. In this case, the dry gas entering from the gas population 9 passes through the underwater bubble generating section 3 and through the humidifying section of the water while generating bubbles, and the relative ratio is almost 100%. The gas is humidified and reaches the gas retention space 7. At the same time, a part of the dry gas coming in from the gas port 9 flows through the hole 11 which is not blocked by the masking tube 12 which is the dividing flow rate adjusting means of the gas dividing hole 11 which is the dividing means provided in the gas introduction pipe 4. It passes directly to the gas retention space 7, passes through water, and the relative humidity is approximately 1.
00% humidified gas is mixed in the gas retention space 7,
From the gas outlet 10 of the gas 4 outlet pipe 5, humidified gas with low relative humidity is sent to the target location through the tube 6. The humidified gas whose relative humidity has been lowered in this way condenses in the tube 6 and remains as water droplets even if the outside temperature in the middle of the tube 6 is lower than the temperature at the place where the humidifier 1 is located and the gas is sent out. There will be no hindrance to this.

As described above, if the gas humidifier 1 of this embodiment is used, the long tube 6 is attached to the humidifier 1, and the outside temperature of the tube 6 on the way to the destination of the humidified gas is adjusted to the point where the humidifier 1 is located. Even when passing through a place where the temperature is lower than the temperature, the gas introduction pipe 4
By increasing or decreasing the number of openings of the gas flow dividing holes 11 as a flow dividing means provided in the wire hole 11 by sliding the masking tube 12 up and down as a dividing flow rate adjusting means for blocking the wire holes 11.
The separation between the dry gas that directly escapes from the gas inlet pipe 4 into the gas retention space 7 and the dry gas that passes through the bubble generating section 3 having a large number of pores in the water from the gas inlet pipe 4 is adjusted, and the gas retention space 7 is By changing the mixing ratio of the dry gas mixed with the humidified gas humidified to approximately 100% relative humidity, the humidified gas is sent from the gas outlet 10 of the gas outlet pipe 5 through the tube 6 to the target location. By adjusting the relative humidity, dew condensation within the tube 6 is prevented and there is no problem in sending the humidified gas.

Using this humidifier 1, the gas flow dividing hole 1 which is a flow dividing means is
Masking tube 12 which is a dividing flow rate adjusting means
The humidity level of the emitted gas was examined by sliding it up and down to increase or decrease it.

The measurement method is as shown in FIG. The gas temperature and the temperature in the gas retention space 7 in the humidifier 1 were measured while sequentially opening the masked gas distribution holes 11 using the masking tube 12 of the gas introduction pipe 4. Measured values are taken 20 minutes after the start to allow time for the humidity to stabilize.
It took me a minute. The temperature of the room is 19°C to 22°C.

Table 1 shows the measurement results. FIG. 7 is a graph of the measurement results.

Table 1 The results show that it is possible to arbitrarily change the humidity of the gas discharged from the humidifier 1 by changing the number of gas distribution holes 11 formed in the gas introduction pipe 4 of the humidifier.

In this measurement situation, when the gas distribution holes 11 are all closed and used, the humidity is 94% and the temperature is 22%. On the other hand, the temperature of the room was 19°C in a cold place, so when using the tube 6 attached to the humidifier, if part of the tube 6 is in a cold place, in this case 19°C, Condensation occurs and water droplets accumulate in that area, but by opening the gas distribution hole 11 provided in the gas introduction pipe 4, the humidity of the discharged gas can be lowered, so that the temperature reaches a point where no condensation occurs at 19°C, that is, 19°C. When the relative humidity is 100 or less, the temperature inside the humidifier is 22°C, and the relative humidity is 83% or less.
You can prevent dew condensation by opening two doors and lowering the humidity.

FIG. 4 shows another embodiment of the gas humidifier according to the present invention.

Here, as a means for branching dry gas from the gas introduction pipe of the gas humidifier 1'' to the gas retention space 7 in the humidification main body container 2, the gas retention space 7 in the humidification main body container 2 of the gas introduction pipe 4 is used.
, and both open ends 16 of the cut portion are cut and separated.
．． 16 are connected by a cylindrical body 17 made of a material through which gas can pass and has a pore slidably fitted into the opening of the gas introduction tube 4, which is used as the flow dividing means.

Further, as a dividing flow rate adjusting means, the cylindrical body 17 having the pores can allow a part of the dry gas passing through the cylindrical body 17 to pass through the pores to the outside of the cylinder.
, 4 up and down to change the distance between the open ends 16 and 16 of the upper and lower gas inlet pipes, and increase or decrease the exposed area of the cylindrical body 17 with pores to the gas retention space 7.
The amount of dry gas that escapes into the gas retention space 7 can be adjusted. In this way, the dry gas directly escapes into the gas retention space 7 and the gas retention space 7 after passing through the water that is the humidification part.
The relative humidity of the humidifying gas discharged from the humidifier 1' can be adjusted by changing the mixing ratio with the humidifying gas that reaches the humidifier 1'.

The one shown in FIG. 5 is also one of the embodiments of the gas humidifier according to the present invention.

The gas humidifier 1'' of this embodiment has a bypass pipe 18 that passes through the side surface of the portion of the humidifier body container 2 corresponding to the gas retention space 7 from a position outside the humidifier body container 2 of the gas introduction tube 4 of the humidifier 1''. A flow rate control valve 19 is provided as a flow rate control means in the middle of the bypass pipe 18, and the gas retention space in the humidifying body container 2 passes through the bypass pipe 18, which is the flow separation unit. The amount of the dry gas sent to the humidifier 7 can be adjusted by adjusting the flow rate control valve 19 as a dividing flow rate control means, so the mixing ratio of the dry gas and humidified gas in the humidifying body container 2 can be changed as desired. , gas having a desired relative humidity can be derived from the humidifier.

〔Effect of the invention〕

As described above, in the gas humidifier according to the present invention, the main container is filled with a humidifying liquid to form a humidifying part and a space, and the humidifying part in the main container is filled with a gas introduced from outside the container. A tube is inserted, the tip of which is immersed in the humidifying section, and a diverting means and a diverting flow rate adjusting means are provided to divert dry gas for humidity adjustment from the gas introduction tube to the space, so that the dry gas and the humidifying gas can be separated. By mixing the gases in the space, the relative humidity of the gas discharged from the main container can be adjusted.

1 Brief Description of the Drawings] Fig. 1 is a cross-sectional explanatory diagram of an embodiment of the gas humidifier according to the present invention, Fig. 2 is an enlarged perspective view showing the gas distribution hole portion of the vent introduction pipe, and Fig. 3 is a humidity An explanatory diagram showing the measurement method, Fig. 4 is a cross-sectional explanatory diagram of another embodiment, Fig. 5 is a cross-sectional explanatory diagram of another embodiment, Fig. 6 is a cross-sectional explanatory diagram of a conventional humidifier, and Fig. 7 is a cross-sectional explanatory diagram of another embodiment. This is a graph showing humidity measurement results.

1: Gas humidifier, 2: Main container, 3z Bubble generator, 4: Gas inlet pipe, 5; Gas outlet pipe, 6: Tube, 7: Space, 8: Distilled water, 9: Gas inlet, 10: Gas outlet , 11: hole,
11-a: Bottom hole, 12: Masking tube, 13: Humidity measuring device, 14: Humidity sensor, 15: Gas supply device, 16: Open end, 17: Cylindrical body 1, 1
8: Bypass pipe, 19: Flow rate control valve.

Figure 3 Figure 1

Claims (1)

[Claims] 1) Fill the main container with a humidifying liquid to form a humidifying part and a space, and insert a gas introduction tube introduced from outside the container into the humidifying part in the main container, and insert the tip into the humidifying part. The main container is immersed in water, and is provided with a flow dividing means and a flow rate adjusting means for dividing dry gas for humidity adjustment from the gas introduction pipe into the space, and mixes the dry gas and the humidified gas in the space. A gas humidifier that adjusts the relative humidity of gas derived from.