A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SIPHON ELIMINATING TYPE BACKFLOW PREVENTING WATER FEEDER
To provide a siphon eliminating type backflow preventing water feeder capable of more surely preventing backflow of outlet retention water in a retaining state at a feed water outlet.SOLUTION: A siphon eliminating type backflow preventing water feeder comprises: an introduction side flow passage 20 communicated to introduce feed water from a water supply source 10, and provided with an introduction side opening 21 opened as an introduction side at a position higher than a water level of the outlet retention water 61 of a feed water outlet 60; an upper side flow passage 30 provided above the introduction side flow passage 20, and communicated with the introduction side opening 21; an outlet side flow passage 40 communicated with an outlet side opening 41 opened as an outlet side of the upper flow passage 30 and extended to the feed water outlet 60; and an intake/exhaust valve 50 arranged and jointed to an upper side of the upper flow passage 30, opened to suck air when pressure of an upstream side of feed water from the upper flow passage 30 becomes a negative pressure than the atmospheric pressure, and opened to exhaust when air accumulates in the upper side flow passage 30.SELECTED DRAWING: Figure 1
【課題】給水出口で滞留状態にある出口滞留水の逆流をより確実に防止できるサイフォン解消型逆流防止給水器を提供する。【解決手段】給水源１０から給水が導入されるように連通され、給水出口６０の出口滞留水６１の水面高さよりも高い位置に導入側として開口された導入側開口２１が設けられた導入側流路２０と、導入側流路２０の上側に導入側開口２１に連通して設けられた上側流通流路３０と、上側流通流路３０の出口側として開口された出口側開口４１に連通され、給水出口６０まで延長された出口側流路４０と、上側流通流路３０の上側に接続されて配され、上側流通流路３０から給水の上流側が大気圧よりも負圧になった際には吸気するように開弁し、上側流通流路３０に空気が溜まった際には排気するように開弁する吸排気弁５０とを備える。【選択図】図１
SIPHON ELIMINATING TYPE BACKFLOW PREVENTING WATER FEEDER
To provide a siphon eliminating type backflow preventing water feeder capable of more surely preventing backflow of outlet retention water in a retaining state at a feed water outlet.SOLUTION: A siphon eliminating type backflow preventing water feeder comprises: an introduction side flow passage 20 communicated to introduce feed water from a water supply source 10, and provided with an introduction side opening 21 opened as an introduction side at a position higher than a water level of the outlet retention water 61 of a feed water outlet 60; an upper side flow passage 30 provided above the introduction side flow passage 20, and communicated with the introduction side opening 21; an outlet side flow passage 40 communicated with an outlet side opening 41 opened as an outlet side of the upper flow passage 30 and extended to the feed water outlet 60; and an intake/exhaust valve 50 arranged and jointed to an upper side of the upper flow passage 30, opened to suck air when pressure of an upstream side of feed water from the upper flow passage 30 becomes a negative pressure than the atmospheric pressure, and opened to exhaust when air accumulates in the upper side flow passage 30.SELECTED DRAWING: Figure 1
【課題】給水出口で滞留状態にある出口滞留水の逆流をより確実に防止できるサイフォン解消型逆流防止給水器を提供する。【解決手段】給水源１０から給水が導入されるように連通され、給水出口６０の出口滞留水６１の水面高さよりも高い位置に導入側として開口された導入側開口２１が設けられた導入側流路２０と、導入側流路２０の上側に導入側開口２１に連通して設けられた上側流通流路３０と、上側流通流路３０の出口側として開口された出口側開口４１に連通され、給水出口６０まで延長された出口側流路４０と、上側流通流路３０の上側に接続されて配され、上側流通流路３０から給水の上流側が大気圧よりも負圧になった際には吸気するように開弁し、上側流通流路３０に空気が溜まった際には排気するように開弁する吸排気弁５０とを備える。【選択図】図１
SIPHON ELIMINATING TYPE BACKFLOW PREVENTING WATER FEEDER
サイフォン解消型逆流防止給水器
SUGIMOTO SAYURI (author) / FUJITA TSUTOMU (author)
2024-06-18
Patent
Electronic Resource
Japanese
DUAL-WATERWAY FLUSH VALVE FOR PREVENTING SIPHON BACKFLOW
| European Patent Office | 2023
| European Patent Office | 2024
Submersible underground water collection siphon water feeder
| European Patent Office | 2022