Vacuum Chamber
Vacuum Chamber
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VACUUM CHAMBER POLYCARBONATE LID TOP LOADING MODEL DEGASS LIQUIDS PUTTIES ETC |  |
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US $183.97 | 12d 4h 14m |
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MDC High Vacuum Research Chamber 6 CFF Conflat with a Swagelok Shut Off | |
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US $115.00 | 20d 20h 5m |
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COY LABORATORY PRODUCTS VACUUM CHAMBER | |
0 Bid | US $150.00 | 3d 16h 45m |
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UHV ULTRA HIGH VACUUM CHAMBER COATING SYSTEM | |
0 Bid | US $495.00 | 3d 20h 59m |
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Varian High Vacuum Research Chamber 2 Way Conflat MDC | |
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US $88.00 | 3d 11h 27m |
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Varian High Vacuum Research Chamber 45 CFF Conflat MDC | |
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US $85.00 | 29d 14h 21m |
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MDC Vacuum Research Chamber 4 Way Conflat Varian | |
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US $650.00 | 29d 16h 14m |
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Huntington Vacuum Research Chamber 6 Way Conflat MDC | |
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US $200.00 | 29d 15h 47m |
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ULTRA HIGH VACUUM GATE VALVE UHV CONFLAT ALL METAL ION EQUIPMENT CHAMBER PUMP | |
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US $99.96 | 29d 19h 47m |
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Varian High Vacuum Research Chamber CFF Conflat MDC | |
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US $600.00 | 25d 18h 34m |
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Nicholas VinOair Wine Aerator
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DescriptionCork Pops VinOair wine aerator is the new must have tool. Its compact, easy to use and not only functions as a wine aerator but is also a wine pourer and drip stopper too. The dual oxygen chamber which pulls twice the vacuum as the other leading aerators... Features
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Weston Vacuum Sealer Bags Bags
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DescriptionCommercial grade vacuum sealer bags are ideal for sealing perishable foods or valuables to protect them in storage. 6 by 12 size, 100-count package Features
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Weston Vacuum Sealer
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DescriptionThis Weston Vacuum sealer is perfect for protecting domestic meats, game fish, vegetables or your personal possessions from the harmful effects that oxygen or freezer burn may cause. Capable of sealing bags up to 15-inch wide, this sealer is the largest in the industry, making any big job a breeze. Features
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Customized 6x6
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Degassing Chamber, 6.25" Dia x 8.5" H, Ideal for small projects, Manufactured by InLab Designs, www.inlabdesigns.com
Sale Price: $183.97 |
DescriptionThis 6.25" Dia x 8.5" H top loading vacuum chamber is ideal for degassing small parts, mixed liquids, performing general-purpose vacuum experiments and a host of other uses. This model can safely accommodate vacuum pumps up to 6CFM and includes a silicone gasket and an acrylic lid to allow for full visibility of parts/liquids... Features
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EuroCave SoWine Home Wine Bar -Silver Trim Door
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DescriptionEuroCave maker of the world's finest wine cellar now brings you the pinnacle of wine preservation! Chills and preserves opened wine up to 10 days! Just place an uncorked bottle inside close the door slide EuroCave's patented vacuum cylinder over the bottle neck and set the desired temperature... Features
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vacuum dryer
This invention relates to a compact vacuum dryer for quickly and economically drying objects such as grain, industrial raw materials and thrash. The vacuum dryer includes a combined upper and lower chamber for accommodating the drying objects. A vacuum pump is connected to the upper chamber for drawing in air for creating the vacuum within the system. A direct heating apparatus is provided at one side of the combination of the upper and lower chambers to directly heat the drying objects. A dielectric heating apparatus indirectly heats the drying objects in combination with direct heating apparatus. A moisture removing apparatus is provided along a discharge passage between the upper chamber and the vacuum pump for preventing the vacuum pump from drawing in moisture from the chamber which may damage or disable the pump.
1. A vacuum dryer comprising:
an upper chamber;
a lower chamber, detachably mounted in communication with the upper chamber for accommodating objects to be dried;
a vacuum pump, connected to the upper chamber by a conduit, for drawing in air to create a vacuum within the combination of said upper and lower chambers;
a direct heating means positioned on the upper chamber for directly heating objects to be dried within the combination of the upper and lower chambers;
a dielectric heating means for heating the objects to be dried in areas of the combination of the upper and lower chambers remotely located from the direct heating means; and,
a moisture removing means, provided along the conduit between the upper chamber and the vacuum pump, for removing moisture from the air drawn by the vacuum pump originating from the combination of the upper and lower chambers.
2. The vacuum dryer as recited in claim 1, further including an agitating means provided in the combination of the upper and lower chambers for agitating drying objects accommodated therein to facilitate drying.
3. The vacuum dryer as recited in claim 1, wherein the direct heating means includes an electric heater provided in the combination of upper and lower chambers.
4. The vacuum dryer as recited in claim 1, wherein the dielectric heating means includes an oscillator for generating high frequency signals and a feeding pipe for feeding the high frequency signals into the combination of the upper and lower chambers.
5. The vacuum dryer as recited in claim 1, wherein the moisture removing means includes a condenser for extracting moisture from air and a container for collecting the moisture removed from the air by the condenser.
6. The vacuum dryer as claimed in claim 2, wherein the agitating means includes a motor positioned on an exterior surface of the lower chamber and a fan rotatably connected to the motor located within an interior portion of the combination of the upper and lower chambers.
7. A vacuum dryer comprising:
an upper chamber;
a lower chamber, detachably mounted in communication with the upper chamber for accommodating objects to be dried;
a vacuum pump, connected to the upper chamber by a conduit, for drawing in air to create a vacuum within the combination of said upper and lower chambers;
a dielectric heating means for heating the objects to be dried located in areas of the combination of the upper and lower chambers remotely located from the direct heating means;
a moisture removing means, provided along the conduit between the upper chamber and the vacuum pump, for removing moisture from the air drawn by the vacuum pump originating from the combination of the upper and lower chambers; and,
a compression means provided in the combination of the upper and lower chambers for compressing object to be dried which are accommodated therein.
8. The vacuum dryer as claimed in claim 7, wherein the compression means includes a motor fixed to an exterior surface of the upper chamber for generating a rotating force, a shaft fixed to the motor for motion vertically forward and backward in response to operation of the motor, and a compression plate fixed at an end of the moving shaft opposite from the motor for compressing objects to be dried within the combination of the upper and lower chambers when the moving shaft moves forward.
9. The vacuum dryer as claimed in claim 8, wherein the compression plate includes a plurality of holes for allowing moisture to escape from objects being compressed.
About the Author
This invention relates to a compact vacuum dryer for quickly and economically drying objects such as grain, industrial raw materials and thrash. The vacuum dryer includes a combined upper and lower chamber for accommodating the drying objects. A vacuum pump is connected to the upper chamber for drawing in air for creating the vacuum within the system
Problem with my vacuum chamber?
I have removed the gas inlet for my vacuum chamber and closed it with a seal. I did this because I wanted to check if my chamber had any problems with my gas inlet valves. ( I had problems of high pressures previously which I suspected to be because of these mechanical gas inlet valves). Now, after sealing my chamber I have pumped it down to check if the problem of high pressures persisted. I have encountered a new problem now. How can I enter air into my chamber and open it now?The gas inlets are closed. I used a rotary pump to pump it down. How can I bring the chamber to normal air pressure?
Before you go adding or subtracting more components, you should make some measurements of the leak up rate. Virtual leaks slow down over time, real leaks do not. If you don't understand this, do some reading about basic vacuum technology.
If I understand, you pumped down your vacuum chamber and you have no way to backfill it to atm. Depending on the chamber design, you may be able to remove the screws/bolts on a small flange or feedthru and open it to air. At ~ 15 psi (atm pressure), it does not take a very big flange to have hundreds of lbs of force holding it closed. If you do not have any small ports that can be cracked open in this manner, then it gets more drastic.
The quick and bad way is to simply turn the pump off leaving the blanking valve open, air will leak backwards thru the pump, likely contaminating your chamber and everything in it with pump oil.
The better way but longer and much more expensive... Blank off the chamber from the pump, shut off the pump. This will allow air to backfill into the lines between the pump and the valve, hopefully this will only contaminate the vacuum lines from the pump to the blank off valve (and this happens everytime you shut off your pump anyway). Disconnect the pump from the blank off valve (leaving the chamber under vacuum) and install a length of vacuum line with a needle valve to the air and a second blank off valve. This way, you can pump down the new length of vac line, open the original blank off valve, close the new blank off valve and backfill the chamber thru the new needle valve.
Water Boiling in a Vacuum Chamber
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