How to exhange an object from airlock into water?
How to exhange an object from airlock into water?
(OP)
hello
i am trying to design a system that will allow me to send an object down an airshaft, and then have that object enter the water without water rushing back in.
for the sake of an easy to understand word picture:
an airshaft is submerged into a body of water for approxiamately 20 feet. at the end of the airshaft, the shaft is sealed so that water cannot rush back into it. imagine that i want to take a 55 gallon drum, lower it into the airshaft, have it pass through a watertight seal into the water and not have any water escape back into the airshaft. i there a place i can look to research how this is done? i can easily design a system that will create an airlock around the drum, release it into the water, then evacuate the water in the airlock, but i want a system whereas there is no airlock, so that the motion of the 55 gallon container does not stop. thanks for any advice on where to start looking.
i am trying to design a system that will allow me to send an object down an airshaft, and then have that object enter the water without water rushing back in.
for the sake of an easy to understand word picture:
an airshaft is submerged into a body of water for approxiamately 20 feet. at the end of the airshaft, the shaft is sealed so that water cannot rush back into it. imagine that i want to take a 55 gallon drum, lower it into the airshaft, have it pass through a watertight seal into the water and not have any water escape back into the airshaft. i there a place i can look to research how this is done? i can easily design a system that will create an airlock around the drum, release it into the water, then evacuate the water in the airlock, but i want a system whereas there is no airlock, so that the motion of the 55 gallon container does not stop. thanks for any advice on where to start looking.





RE: How to exhange an object from airlock into water?
RE: How to exhange an object from airlock into water?
since my system will required multiple entries of containers into the airshaft to be injected into the water, using pressure will require that there is an air lock of sorts at the top to prevent the water from rushing in at the bottom of the shaft. with limited sources of examples, the best i can suggest is that i need a flexible tube resembling a sphincter for a seal. the container can have a cone shaped attachment at both ends, so that the seal expands as the container travels through, then closes on its exit. with this system there should be some leakage at greater depths, but a minimal leakage might be manageable with a sump. i have never seen such a device, i think it would be made of rubber if it existed. thank for any suggestions.
RE: How to exhange an object from airlock into water?
Your barrel apparently needs to be able to go into the water in any case; so it just travels 20 extra feet in water.
TTFN
RE: How to exhange an object from airlock into water?
StephenA
RE: How to exhange an object from airlock into water?
RE: How to exhange an object from airlock into water?
The "sphincter for a seal" is commonly referred to as a pinch valve.
see www.redvalve.com
Red Valve manufactures very large pinch valves. When high pressure air or water is introduced in the annulus between the rubber sleeve and the housing it causes the rubber sleeve to contract (identical to a sphincter). The rubber sleeve will contract around a barrel.
Todd
www.oxilume.com
Todd
www.oxilume.com
RE: How to exhange an object from airlock into water?