Title:
CIRCULATION PUMP UNIT
Document Type and Number:
Japanese Patent JP2021183807
Kind Code:
A
Abstract:
To provide a circulation pump unit capable of detecting water leakage from a circulation pump, discharging the leaked water without overflowing and easily discharging water during maintenance.SOLUTION: The circulation pump unit is configured to: have a circulation pump for circulating hot water, suction piping connected to the suction side of the circulation pump and discharging piping connected to the discharge side of the circulation pump in a casing; dispose a leaked water pan receiving leaked water from the circulation pump and a storage tank storing the leaked water received by the leaked water pan on the lower side of the circulation pump; and cause water leakage to be informed of when generation of water leakage is detected by water level detection means for detecting a predetermined water level in the storage tank. A water discharge part for discharging water to outside of the casing is provided at a position lower than the storage tank. The circulation pump unit includes: a drain hose extending from a bottom part of the storage tank to the water discharge part to discharge stored leaked water; and fixation means for fixing a middle part of the drain hose to a position equal to or higher than the height of the predetermined water level.SELECTED DRAWING: Figure 4
Inventors:
HASHIMOTO SHINSUKE
SHOJI KENGO
SHOJI KENGO
Application Number:
JP2020088542A
Publication Date:
December 02, 2021
Filing Date:
May 21, 2020
Export Citation:
Assignee:
NORITZ CORP
International Classes:
F04B53/04; F04B23/02
Attorney, Agent or Firm:
Toshio Okamura
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