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Method for operating electronically controlled pump assembly

A technology of electronic control, electronic controller, applied in the direction of pump control, engine control, pump, etc., which can solve problems such as poor efficiency, lack of adjustment or wrong adjustment of parameters, system leakage, etc.

Active Publication Date: 2019-08-16
GRUNDFOS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In practice, however, the problem often arises of installing and operating the pump unit at factory settings, or adjusting it preventively, so that a shortage of supply can be ruled out
It can therefore happen that such a pump unit, which is itself very energy-efficiently operable, runs with poor efficiency after several years due to lack of adjustment or incorrectly adjusted parameters and requires more electrical energy than itself.
In addition to increased energy costs, this often leads to too high differential pressures generated by the pumps, which leads to unnecessary leakages in the system and to unnecessarily high noise emissions on the part of the pumps

Method used

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  • Method for operating electronically controlled pump assembly
  • Method for operating electronically controlled pump assembly
  • Method for operating electronically controlled pump assembly

Examples

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Embodiment Construction

[0028] figure 1 shows a pump unit 1, a so-called booster pump, consisting of three parallel-coupled centrifugal pumps 2, which are each driven by a frequency converter-controlled electric motor 3, which draw from a common suction The line 4 feeds into a common pressure line 5 . The pump assembly 1 has a superordinated electronic controller 6 into which the control parameters of the individual pumps, in particular the delivery pressure and the switch-on and switch-off points, can be entered. The electronic controller has an interface with the network, which is cloud-based. The controller 6 is equipped with a WLAN module and a radio module, for which it is connected wirelessly to the network of the pump manufacturer 7 via the Internet 8 , the “cloud”. Furthermore, the electronic controller is equipped with a Bluetooth interface through which the controller can communicate with a smartphone 9 through which an operator 10 can query and change the adjustment parameters available ...

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Abstract

The invention relates to a method for operating an electronically controlled pump assembly (1), wherein, in an electronic controller (6), setting parameters of the pump (2) can be adjusted to adapt tothe hydraulic requirements of the local installation situation (4, 5). The operating data is recorded during the operation of the pump assembly (1). After a predetermined time, based on the recordedoperating data, it is checked whether the pump assembly (1) has been set according to the factory default settings from start-up. If this is not the case, a signal (11) is output in order to call attention to the adjustments that are still required.

Description

technical field [0001] The invention relates to a method for operating an electronically controlled pump unit with the features stated in the preamble of claim 1 and to an electric motor-driven pump unit with the features stated in the preamble of claim 9 Electronic controller for centrifugal pump units. Background technique [0002] Modern pump units, especially centrifugal pump units with electric motor drive, have an electric motor which is connected upstream by a converter / frequency converter, so that the pump can be operated in a different speed range and thus also covers a relatively large power spectrum. In circulating pump units, for example, it is known in the prior art to drive the pump with any desired constant rotational speed, but also to control the operation according to a predetermined pump curve. Regulators are usually provided which are operated by means of hydraulic sensors or, if appropriate, only on the basis of electrical values ​​of the motor, so tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D15/00
CPCF04D15/0088F04D13/06F05D2270/20F05D2270/3015F04D15/0094
Inventor H·尤尔尼尔森M·达尔奎斯特
Owner GRUNDFOS HLDG