Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POSITIVE/NEGATIVE PRESSURE RELIEF DEVICE FOR DRAIN PIPE
To provide a positive/negative pressure relief device for a drain pipe that can suppress the emission of bad odor while making it possible to cope with both positive and negative pressures inside the drain pipe with a simple structure.SOLUTION: A positive/negative pressure relief device 1 for a drain pipe comprises: a cylindrical main body section 2 which is connected to a drain pipe 4 at one end side and into which external air can flow at the other end side; and volume variation means 3 which partitions the main body section 2 into an intake side area 2a into which external air flows and a drain pipe side area 2b into which air from the drain pipe 4 flows, and which allows variation of volume of the drain pipe side area 2b in the main body section 2 by variation of air pressure in the drain pipe 4. The volume variation means 3 has a check valve 10 that allows external air to flow into the drainage pipe side area 2b and suppresses discharge of air from the drain pipe 4 to the intake side area 2a.SELECTED DRAWING: Figure 1
【課題】簡易な構造で、排水管内が正圧、負圧のいずれの状態となっても対応可能としたうえで、悪臭の排出を抑制することができる排水管用正負圧緩和装置を提供する。【解決手段】排水管用正負圧緩和装置１は、一端側で排水管４に接続され、他端側で外部の空気を流入可能とされる筒状の本体部２と、本体部２を、外部の空気が流入する吸気側領域２ａと、排水管４からの空気が流入する排水管側領域２ｂとに区画し、排水管４内の空気圧の変動により本体部２内の排水管側領域２ｂの容積を変動可能とする容積変動手段３と、を備える。容積変動手段３は、外部の空気の排水管側領域２ｂ側への流入を可能とするとともに、排水管４からの空気の吸気側領域２ａ側への排出を抑止する逆止弁１０を有する。【選択図】図１
POSITIVE/NEGATIVE PRESSURE RELIEF DEVICE FOR DRAIN PIPE
To provide a positive/negative pressure relief device for a drain pipe that can suppress the emission of bad odor while making it possible to cope with both positive and negative pressures inside the drain pipe with a simple structure.SOLUTION: A positive/negative pressure relief device 1 for a drain pipe comprises: a cylindrical main body section 2 which is connected to a drain pipe 4 at one end side and into which external air can flow at the other end side; and volume variation means 3 which partitions the main body section 2 into an intake side area 2a into which external air flows and a drain pipe side area 2b into which air from the drain pipe 4 flows, and which allows variation of volume of the drain pipe side area 2b in the main body section 2 by variation of air pressure in the drain pipe 4. The volume variation means 3 has a check valve 10 that allows external air to flow into the drainage pipe side area 2b and suppresses discharge of air from the drain pipe 4 to the intake side area 2a.SELECTED DRAWING: Figure 1
【課題】簡易な構造で、排水管内が正圧、負圧のいずれの状態となっても対応可能としたうえで、悪臭の排出を抑制することができる排水管用正負圧緩和装置を提供する。【解決手段】排水管用正負圧緩和装置１は、一端側で排水管４に接続され、他端側で外部の空気を流入可能とされる筒状の本体部２と、本体部２を、外部の空気が流入する吸気側領域２ａと、排水管４からの空気が流入する排水管側領域２ｂとに区画し、排水管４内の空気圧の変動により本体部２内の排水管側領域２ｂの容積を変動可能とする容積変動手段３と、を備える。容積変動手段３は、外部の空気の排水管側領域２ｂ側への流入を可能とするとともに、排水管４からの空気の吸気側領域２ａ側への排出を抑止する逆止弁１０を有する。【選択図】図１
POSITIVE/NEGATIVE PRESSURE RELIEF DEVICE FOR DRAIN PIPE
排水管用正負圧緩和装置
IRISAWA TORU (Autor:in)
05.12.2019
Patent
Elektronische Ressource
Japanisch
Drainage system using pressure relief device for drain pie
Europäisches Patentamt | 2021
Drainage system using pressure relief device for drain pie
| Europäisches Patentamt | 2021