Water pump control system with energy saving function
A control system and water pump technology, applied in pump control, liquid displacement machinery, machine/engine, etc., can solve the problems of energy saving and water pump inoperability
Active Publication Date: 2014-11-12
XYLEM EURO GMBH +1
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Problems solved by technology
[0002] When the water pump leaves the factory, there is only the performance curve when the pump is running at the rated speed. Generally, it is considered according to the maximum working condition requirements in the design of the water supply system. However, in the actual use of the water system, there are many times when the maximum water consumption may not be reached. In the pumping station or In the running state of the pump group, due to the safety margin setting of the water pump, the water pump cannot run at the best operating energy efficiency point, and the purpose of energy saving cannot be achieved
Method used
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[0036] The operation mode of the water pump control system according to the present invention will be described in detail below.
[0037] The main performance parameters of the pump are flow, head, power, efficiency, etc. The relationship between these parameters is usually expressed by a performance curve.
[0038] figure 1 A schematic diagram of a water pump control system according to the present invention is described. The water pump control system includes a water pump, a water pump frequency conversion device and a water pump control device.
[0039] The water pump control system according to the present invention may be a pump station or a pump group including a plurality of water pumps.
[0040] The water pump control device according to the present invention includes a water pump head obtaining module, which obtains the water pump head according to the flow rate, power and efficiency of the water pump.
[0041] The performance curve of the water pump is a curve repr...
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The invention discloses a water pump control system. The water pump control system comprises a water pump, a water pump frequency conversion device and a water pump control device, wherein the water pump control device comprises a water pump lift acquisition module for acquiring the lift of the water pump according to the flow, power and efficiency of the water pump, a pump station / pump package lift acquisition module for acquiring the lift of a pump station / pump package according to static lift of the pump station / pump package, static lift of the pump station / pump package at a known working point, flow of the water pump at the known working point, the lift of the water pump at the known working point and realtime flow of the water pump, and the water pump control device for controlling the water pump frequency conversion device to enable the lift of the water pump acquired by the pump lift acquisition module to be greater than the lift of the pump station / pump package acquired by the pump station / pump package lift acquisition module.
Description
technical field [0001] The invention relates to a water pump control system, in particular to a water pump control system with energy-saving effect. Background technique [0002] When the water pump leaves the factory, there is only the performance curve when the pump is running at the rated speed. Generally, it is considered according to the maximum working condition requirements in the design of the water supply system. However, in the actual use of the water system, there are many times when the maximum water consumption may not be reached. In the pumping station or In the running state of the pump group, due to the safety margin setting of the water pump, the water pump cannot run at the best operating energy efficiency point, and the purpose of energy saving cannot be achieved. [0003] First, the meanings of the terms used in the present invention are explained. [0004] "Specific energy (Es)" refers to the electrical energy consumed by the pump to transport each cubi...
Claims
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Inventor 施华陈觅顾遥
Owner XYLEM EURO GMBH