再电风扇前面加装一个汽车冷却水箱（或者在风扇面罩上盘上铜制冷却管），两端链接水管，放在水桶里，其中水管的一段加装静音水泵（就是与鱼缸里用的那种）水桶里放冰块，制冷效果不比空调差。
我亲自试验过。
{!-- PGC_VIDEO:{"thumb_fingerprint": 5061158190697757902, "status": 0, "thumb_height": 360, "thumb_url": "pgc-image/153382271293925d0a7b6d3 "thumb_neardup_id": 6956869279152773804, "neardup_id": 16077937460891497071, "vid": "v02004180000bdm4dmkd1dr48pnm5qeg "user_id": 66713911547, "sp": "toutiao "vposter": "http://p1.toutiaoimg.com/origin/pgc-image/153382271293925d0a7b6d3 "external_covers": [{"mimetype": "webp "source": "dynpost "thumb_height": 360, "thumb_url": "a386000daab0345bc5e0 "thumb_width": 640}], "thumb_width": 640, "item_id": 6587720737363067396, "vu": "v02004180000bdm4dmkd1dr48pnm5qeg "duration": 120, "media_id": 1576126816137230, "group_id": 6587720737363067396, "hash_id": 16077937460891497071, "vname": "u590fu5929u7535u98ceu6247u8d8au5439u8d8au70eduff0cu6559u4f60u4e00u62dbuff0cu98ceu6247u6bd4u7a7au8c03u8fd8u51c9u723duff0cu6548u679cu5f88u68d2.mp4 "md5": "32ce4634ab20679c49a1b67754379baa "video_size": {"high": {"duration": 120.32, "h": 480, "subjective_score": 0, "w": 854, "file_size": 6824300}, "ultra": {"duration": 120.32, "h": 720, "subjective_score": 0, "w": 1280, "file_size": 13897305}, "normal": {"duration": 120.32, "h": 360, "subjective_score": 0, "w": 640, "file_size": 4733288}}} --}
