Насосная группа-SPG

Дополнительная информация:

Изображение

Описание Схемы

Характеристики

Модель		SPG-25 -2	SPG-25 -3	SPG-25 -4	SPG-45 -2	SPG-45 -3	SPG-45 -4	SPG-90 -2	SPG-90 -3	SPG-90 -4
Pump Qty.		2	3	4	2	3	4	2	3	4
Rated Flow	m3/hr	25x2	25x3	25x4	45x2	45x3	45x4	90x2	90x3	90x4
Rated Pressure	bar	P=3.4/HP=5.0	P=3.4/HP=5.0	P=3.4/HP=5.0	P=3.2/HP=5.6	P=3.2/HP=5.6	P=3.2/HP=5.6	P=3.5/HP=5.1	P=3.5/HP=5.1	P=3.5/HP=5.1
Power	-P(KW)	5.5x2	5.5x3	5.5x4	7.5x2	7.5x3	7.5x4	15x2	15x3	15x4
	-HP(KW)	7.5x2	7.5x3	7.5x4	15x2	15x3	15x4	22x2	22x3	22x4
		ЗФ, 400VAC, 50Hz	3Ф, 400VAC, 50Hz
Pipe Dia.	Water Inlet (DN)	DN125	DN125	DN150	DN150	DN150	DN200	DN200	DN200	DN250
Pipe Dia.	Water Outlet (DN)	DN125	DN125	DN150	DN150	DN150	DN200	DN200	DN200	DN250
Protector	Pump	Overload relay, low pressure/high pressure protection
Protector	Water Loop	Water shortage protection
Noise	dB(A)	75/80	75/80	75/80	80/85	80/85	80/85	85/90	85/90	85/90
Dimension	D(mm)	400	400	400	400	400	400	400	400	400
	H(mm)	1104	1104	1104	1359	1359	1359	1533	1533	1533
	H1(mm)	1034	1034	1034	1273	1273	1273	1424	1424	1424
	H2(mm)	315	315	315	385	385	385	405	405	405
	W(mm)	1053	1053	1053	1249	1249	1249	1468	1468	1468
	P1	DN125	DN125	DN150	DN150	DN150	DN200	DN200	DN200	DN250
	P2	DN125	DN125	DN150	DN150	DN150	DN200	DN200	DN200	DN250
	A(mm)	2110	2110	2110	2110	2110	2110	2110	2110	2110
	B(mm)	1880	1880	1880	1880	1880	1880	1880	1880	1880
	C(mm)	700	700	700	700	700	700	700	700	700
Weight	kg	Nx175	Nx175	Nx175	Nx261	Nx261	Nx261	Nx340	Nx340	Nx340
Цена
		Заказать	Заказать	Заказать	Заказать	Заказать	Заказать	Заказать	Заказать	Заказать

■ Features

• Adopt frequency conversion control with obvious energy-saving effect;
• Auto/manual switching function ensures the stability of the water system;
• Independently researched and developed advanced controller and frequency-conversion shift, precisely ensuring constant pressure for water supply according to water consumption variation;
• Equipped with RS485 remote monitoring function;
• When the water pump fails, the system will start the next normal pump operation automatically;
• Non-impact of pipe network pressure supplies constant pressure for water supply;
• Soft-start of water pump circling, stable start and stop prevent power grid from impacting by starting current;
• First-start and first-stop operation achieves organized working of water pump to prolong the service life of the water pump.
• Modular and innovative design concept enables the supplying of independent pump that with two or several pumps to achieve any flow and ensure continuous operation.
• Available to cover all the flows and pressures required by the industrial process;

■ Application

It is applicable to centralized constant-pressure water supplying system that is suitable for large power, variable flow and frequent start occasions, which features high-efficient system and obvious energy-saving effect.

It also can be used for reforming the water tank and other forms of water supply.

■ Characteristic Relation of Frequency Conversion Control

Working Principle

After SPG series of pum ping unit start, the pressure sensor detects the outlet pressure to com pare the detection value and setting value. If the setting value is greater than the detection value, the controller will select the w ater pump w ith shortest frequency-conversion loading time (The single pump of controller has run time cum ulative function) for continuous loading. During the process, if the setting value is equal to the detection value, the controlling frequency converter w ill run at a constant fixed rotation speed with constant w ater supply. W hen it loads to fu ll frequency (50H Z), if the setting value is s till greater than the detection value, the w ater pump controlled by frequency-conversion w ill turn to pow er-frequency operation. The controller w ill start next pump w ith short run time in frequency-conversion via frequency conversion shift function to repeat above loading process till the setting value is equal to the detection value.
In constant-pressure w ater supplying, if the w ater flow reduces, and the detection value is greater than setting value, the controller w ill decrease the vibrational frequency of the water pump.

When the pump of frequency conversion decreased to one frequency (norm ally is 30H Z), if the detection value is s till greater than the setting value, it stops the pump with longest running time. Then, the frequency converter w ill re control the pump frequency till the detection value is equal to the setting value, with constant pressure for w ater supplying of frequency conversion.

Outline Drawing

Рисунок5.jpg