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Forum topic by TylerJ posted 08-14-2017 05:27 PM 586 views 0 times favorited 7 replies Add to Favorites Watch
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TylerJ

6 posts in 124 days


08-14-2017 05:27 PM

Hey guys im new to this site and this is my first post, and I know its probably been discussed several times so Im sorry to bring it up. I just set up my Clearvue CV1800 in a 30’ x 30’ shop, ive not yet used it for dust collection but have fired it up a couple of times just to test it. Im trying to get the noise down and have decided to build a closet to help achieve this. Does anyone have any advise or previous experience in doing this? I havent ordered filters yet as I am trying to decide if i want/should vent outside. My shop is brick and I was thinking of venting through the roof if at all possible. I live in central Oklahoma and my main concern is that I may be spitting fine dust allover neighbors, which are all one 1 acre lots so they arent right next to me. I would love to vent outside, Im really just unsure of the amount of dust and noise this thing will spit outside my shop and into my surrounding neighbors lots. Any advice is welcome. Thanks guys


7 replies so far

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Manitario

2564 posts in 2721 days


#1 posted 08-14-2017 09:04 PM

I have a Clearvue and have it in its own closet. The closet is framed with 2×6’s and then insulated with rockwool and 5/8 drywall. Cuts down on the noise by almost 20db. Make sure you allow for air return from the closet into your shop if you don’t end up venting it outside. I don’t vent outside b/c I keep my shop climate controlled…
The Clearvue website has a forum section which has a lot of info on soundproofing/venting etc.

-- Sometimes the creative process requires foul language. -- Charles Neil

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TylerJ

6 posts in 124 days


#2 posted 08-14-2017 09:10 PM

Thanks for the advice, yea Ive read a bunch of articles and looked at several images of other peoples work, Just wasnt sure how much it dropped the noise, did you happen to run insulated pipe to your filters? I had mine upgraded to the 16” blower which was overkill for sure, and when its running its just too loud, theres no way i can work with it on the way it is now.

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JBrow

1274 posts in 758 days


#3 posted 08-15-2017 02:34 AM

TylerJ,

Does anyone have any advise or previous experience in doing this (building a closet)?

If you have room, setting the CV1800 in a closet built to abate noise could be very effective. Since I did not have that room, I enclosed the CV1800 in a stand-alone enclosure that also supports the CV1800. I documented my approach to taming some of the noise generated by the CV1800 at…

http://www.clearvuecyclones.com/forum/forum/clearvue-cyclones/noise-control/1353-unique-portable-cv1800-enclosure

If I had the room, the closet into which the CV1800 would have been placed would have been constructed with double walls. The 2×4 top and bottom plates would feature 2×3 studs where half the studs would be flush inside of the closet and the other half of the 2×3 studs would be flush with the top and bottom 2×4 plates on the outside. The staggered studs would prevent sound induced vibration imparted to the sheathing inside the closet from being transmitted to the outside sheathing. The stud bays would be insulated with a sound abating insulation. Taking things one step further, sound absorbing drywall could be used like QuietRock at Lowe’s (if you have the budget)…

https://www.lowes.com/pd/QuietRock-Common-1-2-in-x-4-ft-X-8-ft-Actual-0-5-in-x-4-ft-x-8-ft-500-Drywall-Panel/3069747

I’m really just unsure of the amount of dust and noise this thing will spit outside my shop and into my surrounding neighbors lots. Any advice is welcome.

My post was a few years ago. Since that time I have cleaned the filter stack (two filters one atop the other) twice. The second time I measured about 4 gallons of fine dust dropping off the filters using the compressed air backwash method. For perspective, I am a hobbyist and this represents about 6 months of dust.

If your CV1800 is vented through the roof, some fine dust (maybe 2-1/2 to 3 quarts per month) will likely be emitted and may settle on the shop roof shingles as well as getting blown by the wind, perhaps annoying the neighbors. In addition, some (maybe a lot of) noise may escape the roof vent if noise abatement is not added to the CV1800 exhaust. Since most manufacturers who sell mufflers for their cyclone units seem to place the muffler at the exhaust and assuming these mufflers are effective, a muffler of some design added to the CV1800 exhausted outdoors may reduce noise outdoors.

On the other hand, if what I believe about Oklahoma is true; constant wind, then, with homes setting on one acre lots, then venting through the roof may not create much animosity with the neighbors even if you do nothing. If you do elect to vent outdoors, then keeping in mind the need for make-up air as suggested by Manitario is a good idea.

Just wasnt sure how much it dropped the noise, did you happen to run insulated pipe to your filters?

In the post on Clear Vue’s forum I did not quantify noise reduction other than to observe that my efforts reduced noise to a level that is lower than the noise level of the machines I use and that a conversation can be held with only the CV-1800 operating. The Roxul mineral wool insulation used by Manitario offers good sound abatement, but from my research I concluded that denim insulation, which I used, was slightly better.

I wrapped the transition where air exits the impeller with denim insulation, as well as placing sound absorbing panels (I used UltraSonic 1” thick x 12” x 12” panels available at Home Depot) on top of the impeller housing (leaving space for the motor to breath). However, I suspect that I may have achieved greater noise reduction had I made a double walled exhaust assembly with sound absorbing installation between the walls of the exhaust. I believe this is the design used by manufacturers to reduce cyclone dust collector noise.

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TylerJ

6 posts in 124 days


#4 posted 08-15-2017 02:06 PM

JBrow,

Thanks so much, thats all good stuff! Ive decided to vent inside with an insulated muffler. I will definitely look into the denim insulation and sound absorbing drywall. Has anyone used the roxul safe n’ sound batts? It seems like those are highly recommended as well. Thanks again fellas, I really appreciate it.

View JBrow's profile

JBrow

1274 posts in 758 days


#5 posted 08-16-2017 12:11 AM

TylerJ,

As I said earlier, I considered mineral wood, i.e. Roxul Safe & Sound, but went with denim insulation. It performs slightly better and I figured that cotton fibers would be easier on the lungs than mineral wool fibers. The acoustical performance of these two types of insulation is similar enough to make little practical performance difference. Therefore it seems to be mostly a decision based on price, availability, and personal preference.

Acoustical performance data are listed at the end of the brochures for these products. Note that the UtraTouch denim insulation Absorption Coefficients are for 3-1/2” thick material while the Roxul Absorption Coefficients are for 3” thick material. Since these are the thicknesses that are sold, a direct comparison of acoustical performance from these manufacturers seems appropriate.

In looking at these data it would be helpful to know the frequency range of the sound emitted by the CV1800. Since I took no measurements, I am of little help. Perhaps a little searching of Clear Vue’s forum could provide those data. I recall a number of Clear Vue forum members quantitating sound from their Clear Vue cyclones.

Roxul Safe & Sound…

http://static.rockwool.com/globalassets/rockwool-na/downloads/technical-data-sheets/residential/safensound_techdatasheet_en.pdf

UltraTouch denim insulation…

http://bondedlogic.com/pdf/denim-insulation/UltraTouch-Denim-Spec-Sheet.pdf

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Jacksdad

110 posts in 262 days


#6 posted 08-16-2017 02:18 AM

I built an addition off the side of my shop where I keep my dust collector and air compressor. The main reason I built it was to cut down noise and to make room. I’d love to pipe the dust collector outside but I don’t want to pump my heat outside, so It goes in barrels and I have filters between the addition and my shop, it works great.

View rwe2156's profile

rwe2156

2716 posts in 1319 days


#7 posted 08-16-2017 05:05 PM

There wouldn’t be any appreciable dust with a cyclone.

The noise can be baffled by putting vent in a closet (or probably other means).

Venting outside definitely increases performance.

-- Everything is a prototype thats why its one of a kind!!

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