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Two-variable-frequency constant pressure water supply device with large pump and small pump
The invention discloses a two-variable-frequency constant pressure water supply device with a large pump and a small pump. The two-variable-frequency constant pressure water supply device mainly consists of the large pump, the small pump, a frequency converter for the large pump, a frequency converter for the small pump, a control cabinet, a pressure detection instrument and a water supply pipe network, wherein the large pump is connected with the frequency converter for the large pump through a connecting wire, the small pump is connected with the frequency converter for the small pump through a connecting wire, the frequency converter for the large pump and the frequency converter for the small pump are respectively connected to the control cabinet through a wire, the pressure detection instrument is installed in the water supply pipe network and is connected to the control cabinet through a wire. The two-variable-frequency constant pressure water supply device has the advantages that the two-variable-frequency constant pressure water supply device utilizes the large pump and the small pump to respectively perform frequency conversion to achieve constant pressure water supply, ultra high pressure when large pump soft start is switched to be at working frequency, and the frequency of the frequency converter for the large pump can be synergistically reduced when the small pump is at low frequency, so that the large pump and the small pump can work in an efficient region, and the effects of reducing energy consumption, eliminating pressure fluctuation, avoiding frequent start and stop and the like are achieved.
Two-variable-frequency constant pressure water supply device with large pump and small pump
The invention discloses a two-variable-frequency constant pressure water supply device with a large pump and a small pump. The two-variable-frequency constant pressure water supply device mainly consists of the large pump, the small pump, a frequency converter for the large pump, a frequency converter for the small pump, a control cabinet, a pressure detection instrument and a water supply pipe network, wherein the large pump is connected with the frequency converter for the large pump through a connecting wire, the small pump is connected with the frequency converter for the small pump through a connecting wire, the frequency converter for the large pump and the frequency converter for the small pump are respectively connected to the control cabinet through a wire, the pressure detection instrument is installed in the water supply pipe network and is connected to the control cabinet through a wire. The two-variable-frequency constant pressure water supply device has the advantages that the two-variable-frequency constant pressure water supply device utilizes the large pump and the small pump to respectively perform frequency conversion to achieve constant pressure water supply, ultra high pressure when large pump soft start is switched to be at working frequency, and the frequency of the frequency converter for the large pump can be synergistically reduced when the small pump is at low frequency, so that the large pump and the small pump can work in an efficient region, and the effects of reducing energy consumption, eliminating pressure fluctuation, avoiding frequent start and stop and the like are achieved.
Two-variable-frequency constant pressure water supply device with large pump and small pump
2015-05-27
Patent
Electronic Resource
English
IPC:
E03B
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INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
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