My orchids have rotten leaves

[linhnguyen]

Hello all,
I'm newbie here, in a last week, i get a new orchid ( although i don't know exactly name of it - my mean is science name ) .
I water soaked it in the morning and one again in afternoon before 4pm. Temperature and humidity in picture.
A few days ago I spotted some abnormalities on the leaves. Immediately i cut off that leaves, potting was isolation and cut off water. I don't know what i do right or wrong, and how is recover my orchid.
Thank .