Abstract:
The device serves for the qualitative and quantitive detection of particles in a fluid and includes a light source (1), an optical sensor (2) and a sample carrier (4) which is arranged therebetween and which is for receiving fluid to be examined. The sample carrier is (4) movable relative at least to the sensor (2) and is connectable via a fluid inlet (9) to a conduit (11) for feeding the fluid, and via a fluid outlet (10) to a conduit (12) for the discharge of fluid. The sample carrier (4) is exchangeably arranged in a receiver of the device, so that this sample carrier can be replaced by another one in a rapid and simple manner when the sample carrier (4) is contaminated.
Abstract:
The invention relates to a pump control method for the control of the operation of a pump system with at least two pump assemblies (2) which are arranged parallel or in series to one another. The method includes determining a specific total power ES of the complete pump system which defines a total power in relation to a hydraulic total load of the complete pump system, determining a specific individual power EP,n of each pump assembly (2) which defines an individual power in relation to the individual hydraulic load of the respective pump assembly (2), computing an individual load factor Egain,n for each pump assembly (2) according to the equation E gain , n = E S E P , n and adapting the individual hydraulic load (Qn; Hn) of the pump assemblies (2) in dependence on a desired hydraulic load (QD; HD) as well as on the individual load factor Egain,n of the respective pump assembly (2).
Abstract:
A pump assembly includes an electric drive motor with a terminal box (6) arranged on the electric motor (4). At least one metallic component (34) extends from the electric drive motor (4) into an inside of the terminal box (6). A capture device (38, 40), for capturing condensation water collecting on the metallic component (34), is arranged in a proximity of the metallic component (34) in the inside the terminal box (6).
Abstract:
A dosing system for delivering a dosing fluid includes a dosing manifold having a front panel and a rear panel with a plurality of channels and a plurality of inlet and outlet ports in fluid communication with corresponding channels. The front panel holds a plurality of flow control devices in fluid communication with corresponding channels to control the flow of the dosing fluid in the channels. A dosing pump is in fluid communication with the dosing manifold and is configured to pump the dosing fluid through the dosing manifold.
Abstract:
The dry running detection system for a pump includes an ultrasonic transducer (8) designed for arrangement inside a pump housing (24) and electrically connected to a frequency generator (2) producing an electrical signal having a predefined frequency. An analyzing unit (10) of the system analyses the electrical signal applied to the ultrasonic transducer (8) and is designed to detect whether the ultrasonic transducer (8) is in contact with a liquid or not on basis of the signal level of the electrical signal.
Abstract:
A heating apparatus includes two heating circuits (3, 4), one for room heating (3) and one for domestic water heating (4). A primary heat exchanger (1) is provided as well as at least one secondary heat exchanger (7), for the room heating as well as a secondary heat exchanger (9) for domestic water heating. A circulation pump (6) is provided as well as a switch-over valve (5) which hydraulically integrates the primary heat exchanger (1) into the first or into the second heating circuit (3, 4). The heating circuit (4) for the domestic water heating, on operation of the heating circuit (3) for room heating, is used as a bypass conduit for the primary heat exchanger (1), wherein the switch-over valve (5) forms the bypass valve or is used as a bypass valve.
Abstract:
A clamping ring (11) for the connection of two flanges includes an open ring section (17) which is designed for receiving the flanges (9, 10) to be connected. The flanges (9, 10) have ends connected by way of a clamping device (21-27) which is attached on the ring section (17). With the clamping device (21-27), the ends of the ring section (17) can be moved onto one another and thus the clamping ring (11) can be clamped amid the integration of the flanges (9, 10). The clamping device (21-27) includes a clamping force limitation device (27), in order to prevent an unintended failure of the clamping device (21-27) on assembly.
Abstract:
A pump assembly includes a pump housing (2) and a stator housing (16), which is connected to the pump housing (2) and in which a wet-running electric motor with a can (18, 18′) is arranged. A plate-like bearing carrier (26, 26′) of sheet-material is arranged between the pump housing and the stator housing (16). The bearing carrier (26, 26′) includes a centering surface (40, 40′) in a manner distanced to its free peripheral edge, said centering surface coming into bearing contact on a corresponding contact surface (42) of the pump housing (2) in a manner such that the bearing carrier (26, 26′) with the can (18, 18′) is centered relative to the pump housing (2).
Abstract:
A pump unit (2) has an electrical drive motor (5) and a control device (4) for controlling the drive motor (5), wherein said control device (4) includes at least one microprocessor (8) and storage means (6) which is able to store at least one control program executable by said microprocessor (8), wherein said control device (4) includes or communicates with a programming module (7) by which at least one user application can be created and/or modified and stored in said storage means, wherein said programming module (7) is designed such that at least one input parameter (13), at least one operator (10) and at least one action (14) can be chosen as program elements and combined to generate at least one user function (18) of said user application which can be executed by said microprocessor.
Abstract:
A waste water lifting installation has a collection container and a pump assembly. The pump assembly is fastened on a flange plate which closes an opening on the upper side of the collection container. The flange plate, on a first side edge which faces the middle region of the waste water lifting installation, is releasably fixed on the collection container with a single locking element.