Any Engineers out there? Especially experts in fluid dynamics? :)

Darkmatter

Insert Funny Here.
Joined
Oct 1, 2008
Likes
2
Location
Ontario, Canada
#1
Figured I'd ask here first before having to go register on ANOTHER forum.

I have one of these: (Edit: pics not showing up so I'm just showing links.)

https://imgur.com/sHvF9IS

The problem is that it wakes me up or keeps me awake because as it uses up water the air inside thins out to fill the new space. Eventually air gets sucked in through the bottom and it makes a fairly loud glugging sound as it does it. It repeats this cycle about every 5 min, which makes it hard to fall asleep.

So I had this BRILLIANT idea. I heated a pin on the stove and put a small hole in the top of the bottle so that new air could always get in from the top. Unfortunately I didn't know at the time that the unit uses this "air pressure" system to only allow so much water to get into the actual unit. With this tiny hole I broke the system and it started draining ALL the water from the bottle overflowing everywhere. Luckily I saw it happen and stopped it fast.

So, I took the whole thing apart, partly to dry it and partly out of curiosity.

Pic 1:

https://imgur.com/BoNWstG

The circled thing goes up the hole that's also circled. Next pic shows the unit from the top.

Pic 2:

https://imgur.com/vvHKeHG

Pic 3:
What is this part and what does it do? I showed it superimposed where it would go in the previous picture.

https://imgur.com/NbFuHJw


Pic 4 (Last)
This plate is under the hole shown in Pic 2.

https://imgur.com/qaA3m7t

I think the fan is just to keep the parts cool and to blow the vapor out of the unit. It looks like its one of those ones that vibrates a plate at super fast speeds to break the water up into very small particles.


Showing you all that partly for giggles I'm SURE there MUST be a way to use a bottle with a hole on the top without it spilling over. 1 thought which would be VERY hard to balance would be a piece of rubber over top of the hole to allow only minute amounts of air in. The bottle would actually suck the rubber down reducing the airflow even more, maybe even stopping it. If it does let in just a little air maybe it would be JUST enough to offset the amount of water the unit uses.

My other thought was something like from a science experement where you have 2 beakers connected with a tube. I was thinking about a tube over the first hole running to a cylinder or bottle that has both water and air in it and try to create a sort of regulator. Maybe have it have a 2nd chamber with a small rubber ball in it that when the pressure drops, it drops the ball blocking further water from getting to the first unit.

I could also do something like a tube running to a 2nd bottle with water in it and an S tube at the bottom or side, sort of like a drain trap. The suction would need to get to a certain level to pull more water over to the other unit. The same could be done with an air hole. Air wouldn't be able to get in from a hole until the water in the S tube flows. If what I created still glugged I could run a longer tube and have it further away from my bed. This little thing is for beside your bed.

Ok I'm done rambling now. :)

If you actually bothered to read all that, thanks!

DM
 

Darkmatter

Insert Funny Here.
Joined
Oct 1, 2008
Likes
2
Location
Ontario, Canada
#7
I could maybe use a 2L bottle and cut the bottom off. The tricky part would be finding another bottle that I could somehow possibly clamp to the sides of the 2L bottle with the exit point where I would want the surface of the water to be.This extra water and open air 2L bottle would stop the glugging and add additional water to make sure it ran all night. Still, it sounds like quite the job if you want to do it right. The biggest problem is the small size of the bedside humidifier. I'm not sure how balanced it would be with all that on top of it. Even if I don't do it, it was an interesting read. Thanks.
 
Top Bottom