Variable frequency constant pressure water supply equipment
Product overview
With the development of the two water supply pressurization technology, the frequency conversion constant pressure water supply equipment fundamentally solves these problems. According to the "water supply equipment promotion center data show that the frequency constant pressure water supply equipment without the construction of a water tower, a small investment and land occupation, the gas automatic adjustment, automatic operation, energy saving and automatic tap water grid, power still water, do not need to watch a few years after debugging. The construction of towers than save investment 70%, than the construction of high water saving investment 60%, greatly save construction investment.
Variable frequency constant pressure water supply equipment is widely used in enterprises, institutions, residential areas and rural production, living, office water. Water supply households in 202000 households. The daily water supply capacity in the 20 - 50000m fand, water up to 150 meters high, 50 storey building.
Two, equipment composition
Variable frequency constant pressure water supply equipment is mainly composed of the pump unit, pressure regulator, pressure sensor, frequency control cabinet, etc., can always maintain the pressure gauge pressure (ie, the water pressure of the user network) is equal to the user set value. Can be used for general life or production water supply. The composition of water supply system:
1 variable frequency water supply equipment and municipal pipe network constant pressure water supply, water supply pressure can meet the needs of the automatic shutdown of all pumps. Otherwise, the constant pressure water supply equipment starts to increase the pressure to meet the water requirements.
2 additional small pump or a pressure tank, in order to completely eliminate the small flow and zero flow water consumption, can increase the auxiliary pump or auxiliary air pressure tank, when the water pressure is low, the automatic shutdown of the main pump, the pump or the air pressure tank operation.
Three, product features
1 negative pressure, the system and the municipal pipe network directly connected to the water pressure operation will not cause negative pressure on municipal water pipe network.
2 set pressure, through the regulation of the pressure control valve can be set to permit the municipal water pipe network suction pressure.
3 borrow pressure (or pressure), more than the allowable suction pressure and flow can be pressurized on the basis of the water pipe network pressure. Can reduce the number of pumps or from ordinary reservoir water compared to the runtime (and) to reduce the speed to achieve the purpose of saving energy.
4 frequency constant pressure equipment, real-time detected by the sensor outlet pressure, the detected value and the set value comparison operation, to determine the motor and water pump station sets of input and output frequency of the inverter (response to motor and water pump speed) to catch up with the water to achieve constant pressure curve.
5 no noise, the use of modern design concept, take full account of modern environmental requirements, selection of mute special inverter, using a silencer design means, so the system can ultra quiet operation.
6 continuous power supply, power supply line power failure, the system through BY PASS and other means to achieve power outages, water, that is, when the power system is automatically switched to municipal tap water pressure.
7 high degree of automation, the system can realize automatic control, manual / automatic switch, main and auxiliary pump rotation timing, pressure adjustment, constant voltage, low voltage protection, phase failure protection, leakage protection, overload protection, overheat protection, water protection, Water Leakage detection and compensation, no water park, instantaneous trip protection function. The user interface can be configured according to the needs of users.
Four, model description
Five, working principle
According to user requirements, the first set of water pressure value, and then run the electricity monitoring network pressure pressure sensor and converted into electrical signals to the programmable controller or a microcomputer controller, through analysis and processing, the signal is transmitted to the inverter to control the pump operation, when water consumption increases, the output voltage and frequency increasing pump speed increased water increased when water is reduced, the pump speed is reduced, reducing the amount of water, the pipeline pressure to maintain the set pressure value, and on more than one machine one by one when the pump is running, soft start, power frequency by frequency conversion turn to meet the pressure and flow, and realize the cycle control of the pump, when the night run a small flow, the variable frequency pump to maintain work, stop holding pressure frequency conversion water supply pump.
Six, the scope of application
1, the new residential areas, villas, office buildings, residential water supply.
2, high-rise buildings, fire water, advanced hotels and other living water supply.
3, air pressure water, ground water pressure and other traditional water supply system transformation.
4, all kinds of boiler water supply system, boiler hot water.
5, the middle of the pressurized water pump station, tap water two times.
6, the production of industrial and mining enterprises, domestic water, pipe network voltage.
7, various types of circulating water, cooling water supply system.
8, tap water pressure can not meet the requirements of life, fire pressurized water supply, etc.