Analysis of DE Pool Filter as Steam Pressure Vessel

In summary, the pool filter was made from stainless steel and was rated for an operating pressure of 50 PSI. It regularly operated at pressures of 10-15 PSI, and as much as 25-30 PSI when it needed cleaning. The filter was configured to also work as a steamer by adding 1500 watt heating element and some valves, gauges, and a temperature controller. It held 55 gallons and was successfully used on its first run to sterilize 8 gallons of coffee and straw bulk substrate. New 15A temperature controller was installed and it was tested on its second run to successfully sterilize 5 gallons of straw, coffee, and wood pellets bulk substrate.
  • #1
IAMJackal
1
1
Have built a 55 gallon DIY steamer from a DE pool filter. The pool filter is made from .06 inch stainless steel and was rated for an operating pressure of 50 PSI. As a pool filter, the vessel regularly operated at pressures of 10-15 PSI, and as much as 25-30 PSI when it needed cleaning.

Have run it as a pressure cooker at 3 PSI with no problems. Have run various pressure vessel wall thickness calculators that seem to indicate the vessel could easily handle 15 PSI at 250F.

https://checalc.com/calc/vesselThick.html

Can someone here help verify the design to operate at 15 PSI as a pressure cooker?

Below are details of the build:

Had a .06 inch stainless steel DE pool filter that was being used as a smoker and to pasteurize bulk substrates. Decided to configure it to also work as a steamer by adding 1500 watt heating element and some valves, gauges, and a temperature controller. Holds 55 gallons and used it on its first run to successfully sterilize 8 gallons of coffee and straw bulk substrate.

Plate from the DE pool filter showing 50 PSI operating pressure as a pool filter.

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Diagram of pool filter, guts are removed.

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1500 watt heater wiring.

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Covered and mounted on bottom of barrel.

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Inside bottom of barrel with heater installed.

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Protective cover and shelf over heater.

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PC gauge and pressure weight, and 0-100 PSI pressure control valve.

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Temperature controller to turn on and off heater to maintain 2.5 PSI pressure.

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Test run with 8 gallons of coffee and straw bulk substrate.

415131373-thumb_20171223_154857.jpg


Sterilization at 2.5 PSI in progress.

415143829-thumb_20171223_202913.jpg


Sterilization complete, 5 gallon bulk substrate inoculated with Grey oyster mushroom spawn.

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8 gallons of sterilized and inoculated bulk substrate.

415172154-thumb_20171224_143059.jpg


Changed the temperature controller to one rated for 15 amps, and ran five gallons of straw, coffee grounds and wood pellets bulk substrate. No boom
wink.gif


New 15A temperature controller, off at 212F, on at 210F external temperature.

458121889-thumb_20171228_153208.jpg


New bottom rack.

458138834-thumb_20171228_153618.jpg


Five gallons straw, coffee, HWFP bulk substrate.

458150930-thumb_20171228_160451.jpg


Locked and loaded, time 1617.

458163637-thumb_20171228_161707.jpg


Heating up.

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At pressure, 2.5 PSI, external temperature 212F, time 1759.

458204916-thumb_20171228_174736.jpg


Second DIY steamer experiment at 2.5 PSI complete, start time 1759, end time 2330.

458221131-thumb_20171228_232910.jpg


All help appreciated!

Cheers!

Jackal
 

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  • #2
Sorry, Jackal. This is the kind of thing that we can't help you with here at the PF, for liability reasons. Thread is closed.
 
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  • #3
Thread is in ModQ while I work on a re-post with the OP...
 
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Related to Analysis of DE Pool Filter as Steam Pressure Vessel

1. What is a DE pool filter and how does it function as a steam pressure vessel?

A DE pool filter is a type of pool filtration system that uses diatomaceous earth (DE) as a filter medium. The DE filter is designed to remove small particles and impurities from pool water by trapping them in the DE powder. In the context of a steam pressure vessel, the DE pool filter is used as a containment vessel for steam, which is generated through a heating process. The steam is used to power various industrial and commercial processes.

2. Why is it important to analyze the DE pool filter as a steam pressure vessel?

It is important to analyze the DE pool filter as a steam pressure vessel to ensure its safety and proper functioning. The steam pressure vessel must be able to withstand high pressure and temperature, and any failure or malfunction can result in serious accidents and injuries. Analyzing the DE pool filter as a steam pressure vessel helps to identify any potential weaknesses or flaws that could compromise its integrity and safety.

3. What factors are considered in the analysis of a DE pool filter as a steam pressure vessel?

There are several factors that are considered in the analysis of a DE pool filter as a steam pressure vessel. These include the material used to construct the filter, its design and structural integrity, the pressure and temperature that it can withstand, and any potential sources of stress or corrosion. The analysis also takes into account the intended use of the steam pressure vessel and any safety regulations or standards that it must comply with.

4. How is the analysis of a DE pool filter as a steam pressure vessel conducted?

The analysis of a DE pool filter as a steam pressure vessel is typically conducted using various engineering calculations and simulations. This may involve evaluating the strength and durability of the materials used, testing the vessel under different pressure and temperature conditions, and identifying any potential failure points. The analysis may also include inspections and non-destructive testing methods to detect any defects or flaws that could compromise the safety of the vessel.

5. What are the potential risks of not properly analyzing a DE pool filter as a steam pressure vessel?

The potential risks of not properly analyzing a DE pool filter as a steam pressure vessel include the risk of accidents and injuries, as well as damage to equipment and property. A failure or malfunction of the steam pressure vessel can result in explosions or releases of high-pressure steam, which can cause serious harm to nearby individuals and infrastructure. It can also lead to costly repairs or replacements and disrupt industrial processes. Proper analysis is necessary to mitigate these risks and ensure the safe operation of the steam pressure vessel.

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