You can probably repack Debian packages to PeaZIP archives, however they won't be useable as installers afterwards. This conversion doesn't seem to have much of use.
Convert Debian Linux package to PeaZip pack encrypt authenticate file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert deb to pea on Windows
A free open source archive utility
Convert from deb file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.