JPH0178277U

JPH0178277U -

Info

Publication number: JPH0178277U
Application number: JP1987173670U
Authority: JP
Priority date: 1987-11-12
Filing date: 1987-11-12
Publication date: 1989-05-25

Description

[Brief explanation of drawings]

第１図は縦断側面図、第２図はケーシング本体
とケーシングカバーとの境界部での縦断正面図、
第３図はケーシングカバー側とは反対側から見た
ケーシング本体の一部縦断背面図である。１Ａ，１Ｂ……ローター駆動軸、２……スプラ
イン軸部、３Ａ，３Ｂ……ローター、５……ロー
ター固定用ナツト、６……ケーシング、７……ポ
ンプ歯部、８……ポンプ室、１１……ケーシング
本体、１２……ケーシングカバー、１３……輸送
液体の漏洩防止用メカニカルシール、１４……滅
菌用スチームの漏洩防止用メカニカルシール、１
９，２０，２５，２６，３３，３４……Ｏリング
、２７Ａ，２７Ｂ……環状空隙、２８ａ〜２９ｂ
，３２ａ，３２ｂ……スチーム給排通路、３０…
…連通流路、３１……環状凹入溝、３５……メカ
ニカルシール内装空洞部、３７……吸入口、３８
……吐出口。 Figure 1 is a vertical side view, Figure 2 is a vertical front view at the boundary between the casing body and the casing cover,
FIG. 3 is a partially vertical rear view of the casing body seen from the side opposite to the casing cover side. 1A, 1B... Rotor drive shaft, 2... Spline shaft portion, 3A, 3B... Rotor, 5... Rotor fixing nut, 6... Casing, 7... Pump teeth, 8... Pump chamber, 11 ... Casing body, 12 ... Casing cover, 13 ... Mechanical seal for preventing leakage of transport liquid, 14 ... Mechanical seal for preventing leakage of sterilization steam, 1
9, 20, 25, 26, 33, 34... O ring, 27A, 27B... Annular gap, 28a to 29b
, 32a, 32b...Steam supply/discharge passage, 30...
...Communication channel, 31...Annular recessed groove, 35...Mechanical seal interior cavity, 37...Intake port, 38
...Discharge port.

Claims

[Scope of utility model registration request]

An annular recessed groove is formed on one side of the contact surfaces between the casing body and the casing cover that form the pump chamber so as to surround the pump chamber, and an annular groove is formed on both the outside and the outside so as to sandwich the annular recessed groove. A rotary pump comprising: a sealing member interposed between the facing surfaces of the casing body and the casing cover; and a supply/discharge path for sterilizing steam or the like communicated with the annular recessed groove in the casing body.