A pet sitter  or talk to your vet about boarding your cat

Pss  some cats will never accept dogs   2 of mine would probably kill a dog

It's territorial.  You could do a slow introduction if the dogs lived there,
but it isn't practical for occasional visits.  I suggest a pet sitter or
boarding for the dogs.  This is your cat's home, so it is more reasonable to
make arrangements for the dogs than to displace your cat.  As to your
arrangements when you travel, ask your vet and friends for recommendations
for a *good* (reliable) pet sitter.  Your cat will be better off in his or
her own environment, and most pet sitters will also do other tasks for
you -- such as bring in the mail and papers, check the house for any
problems, etc.

MaryL