-
1.发明申请公开(公告)号：US20170272844A1
公开(公告)日：2017-09-21
申请号：US15532238
申请日：2015-03-10
Applicant: Grundfos Holding A/S
Inventor： René Stig BERGQVIST , Christian WOLF , Jens MILTHERS
Abstract: An electronic converter unit for retrofitting to an external part of a housing of a pump unit is described. The housing comprises a light source for emitting light to display an operating status of the pump unit. The electronic converter unit comprises: a photo detector for measuring light emitted from the light source of the pump unit, a converter unit for converting optical signals to electrical signals, and transmitting means for wirelessly transmitting the electrical signals to an external communication unit.
-
公开(公告)号：US20170328579A1
公开(公告)日：2017-11-16
申请号：US15532278
申请日：2015-03-10
Applicant: Grundfos Holding A/S
Inventor： Carsten Skovmose KALLESØE , René Stig BERGQVIST , Lars Sund MORTENSEN
CPC classification number: F24D19/1012 , F04D13/0686 , F04D15/0066 , F04D15/0088 , F24D3/10 , F24D19/1015 , F24D19/1024 , F24D19/1048 , G08B5/228 , H04Q9/00 , H04Q2209/43 , Y02B30/745
Abstract: A method of balancing a heating system with a flow system, including a supply flow line (60) and a return flow line (70), a heat source (55) and a pump (10) hydraulic lines (L1-Ln), some having a heating element (H1-Hn) with a balancing valve (V1-Vn). The method includes: carrying out one or more measurements by opening one hydraulic line only and determining a flow rate through the pump and a pressure difference across the pump, establishing a hydraulic model based on the determined flow rate and pressure difference from at least two measurements from step, and at least one additional measurement for at least two hydraulic lines, specifying a desired flow rate for each of the hydraulic lines, and adjusting one or more of the dedicated balancing valves in order to meet the desired flow rate for each of the hydraulic lines by using the hydraulic model.
-
Search Results
2
records
(took 0.01 seconds)
