My HR-22 did come with one fan mounting set of clips, the clips are different from my HR02 and the HR02 macho clips that i have seen included, so might be just for them. Now i ordered a Thermalright TY150 and it came with clips that work with HR-22, but this is a 150mm fan not a 140 or 120, so it will not match any other fan, but from here i would say that the standard HR02 clips should work on the HR22, it has the holes to mount them, but cross check it.
Now just a warning, the HR22 is a very big heatsink, that will go almost to the back of your case, in my build (click the link on my signature "desktop"), you will see there is no room for you to place a second fan, unless the CPU socket is placed more up front (dont know any consumer motherboard that has this), so its not viable dual fans in most standard cases/motherboards.
If you wish for dual fan setup, go with twin tower coolers, there are a lot of good options there, check the reviews on SPCR likePhanteks PH-TC14PE Dual Fan CPU HeatsinkNoctua NH-D14 flagship dual-fan CPU coolerThermalright Silver Arrow Dual 14cm Fan CoolerProlimatech Genesis CPU Heatsink: Retaking the Crown
There is a new version of the NH-D14, with PWM fans and a little different the bottom of the fins, and there is also a revised Thermalright Silver Arrow coming soon with asymmetrical CPU mounting to occupy less space toward the PCIe slots (this is to not take the first pci). Both should hit retail this year, but no official announcement from either company into when.
Just as final comment, i have seen the Prolimatech Genesis on 3rd party sellers going very low on amazon, in SPCR reviews is one of the best and you also gain the cooling of you motherboard components, usually it was $80, now its $50 so at this price might be a good option, Prolimatech Megahalems Rev C. Intel CPU Heatsink
, remember this comes with no fans, so you still need to buy them, Prolimatech Vortex slim 140s
are pretty nice PWM fans for it (but you also need to buy the clips for the genesis