A Huge and old Phal for sure ! What a stunning display it has put up for you ! COngrats, you have definitely the right temperature and light regimen for the plant. But I would suggest you start feeding the plant now. Having so many blooms needs a lot of energy and growth. The effects of not feeding it will not be evident immediately, but the plant will keep absorbing nutrients from the oldest leaves, if you do not feed it, it will just recycle the nutrients and loose its older leaves. About the id. I am afraid I can`t help much, but it doesn`t look like a species, most probably a hybrid. How are the leaves coloured, schilleriana and its hybrids tend to have mottled foliage.