A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A SAFETY APPARATUS FOR A SWIMMING POOL
A safety apparatus (1) for a swimming pool (10) comprises at least two pressure switches (31,41) in use hydraulically connected in a same point (22) upstream of a pump (25) of a swimming pool water purification circuit, each pressure switch comprising a first (33,43) and a second (34,44) contact arranged to open or close when an emergency stop pressure (Pa) and a maximum operation pressure (Pe) is reached, respectively, and also comprises a logic unit (50) electrically connected to each pressure switch (31,41) and, in use, with a contactor (24) of the circulation pump (25), the logic unit (50) configured to compare the statuses of the second contacts (34,44) with each other, and for transferring a pump-stop/block electric signal (55) to the contactor (24) when a status of at least one pressure switch (31,41) it is detected which corresponds to a pressure lower than the emergency stop pressure (Pa), or when a condition is detected in which the status of the second contact (34) of one of the pressure switches (31) indicates a suction pressure lower than the maximum operation pressure (Pe), while the status (44) of the other pressure switch (41) indicates a suction pressure higher than the maximum operation pressure (Pe); in this condition, an instrument out-of-service alarm signal is also generated. In an exemplary embodiment, a key device is provided, associated with a key confidentially entrusted to a subject, which serves allow switching on the pump even in the presence of such a condition.
A SAFETY APPARATUS FOR A SWIMMING POOL
A safety apparatus (1) for a swimming pool (10) comprises at least two pressure switches (31,41) in use hydraulically connected in a same point (22) upstream of a pump (25) of a swimming pool water purification circuit, each pressure switch comprising a first (33,43) and a second (34,44) contact arranged to open or close when an emergency stop pressure (Pa) and a maximum operation pressure (Pe) is reached, respectively, and also comprises a logic unit (50) electrically connected to each pressure switch (31,41) and, in use, with a contactor (24) of the circulation pump (25), the logic unit (50) configured to compare the statuses of the second contacts (34,44) with each other, and for transferring a pump-stop/block electric signal (55) to the contactor (24) when a status of at least one pressure switch (31,41) it is detected which corresponds to a pressure lower than the emergency stop pressure (Pa), or when a condition is detected in which the status of the second contact (34) of one of the pressure switches (31) indicates a suction pressure lower than the maximum operation pressure (Pe), while the status (44) of the other pressure switch (41) indicates a suction pressure higher than the maximum operation pressure (Pe); in this condition, an instrument out-of-service alarm signal is also generated. In an exemplary embodiment, a key device is provided, associated with a key confidentially entrusted to a subject, which serves allow switching on the pump even in the presence of such a condition.
A SAFETY APPARATUS FOR A SWIMMING POOL
SICHERHEITSVORRICHTUNG FÜR EIN SCHWIMMBAD
APPAREIL DE SÉCURITÉ POUR PISCINE
LAZZARINI MASSIMILIANO (author) / RONTANI FLAVIO (author)
2021-11-03
Patent
Electronic Resource
English
IPC:
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
/
A61H
PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY
,
Geräte für die physikalische Therapie, z.B. Vorrichtungen zum Lokalisieren oder Anregen spezieller Reflexpunkte am Körper
/
F04B
Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten
,
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS