Product introduction

Frequency conversion constant pressure water supply equipment is a new mechatronics water supply equipment, which applies frequency conversion speed regulation technology and programmable control technology to automatic control equipment of water pump and combines with motor pump unit.

The equipment adopts a closed-loop adjustable frequency variable speed water supply system composed of AC variable frequency governor, industrial programmable controller, digital PID regulator, low-voltage electrical apparatus, pressure sensor, liquid level controller and pump, etc. The system can automatically adjust the rotational speed of one pump motor and the input and exit of several pump motors according to the instantaneous pressure change of the pipe network. The system can make the pressure at the end of the water supply pipe network constant and the whole water supply system always efficient and energy-saving.

In the water supply system, it can replace the water tower water supply, high-level water tank water supply or air pressure water supply in the water supply equipment, and the energy saving effect is remarkable.

Frequency conversion water supply equipment leverages cutting-edge frequency conversion technology to regulate the speed of water pump motors based on real-time demand. This advanced approach enables precise control over water pressure and flow rates, ensuring a consistent and reliable water supply. By dynamically adjusting to varying consumption patterns, this equipment significantly enhances the efficiency of water distribution systems, making it an ideal solution for residential, commercial, and industrial applications.
A major advantage of frequency conversion water supply equipment is its remarkable energy efficiency. Traditional water supply systems often operate at a constant speed, leading to unnecessary energy consumption during low-demand periods. In contrast, frequency conversion systems modulate motor speeds to match actual water usage, resulting in substantial energy savings. This not only reduces operational costs but also extends the lifespan of the equipment by minimizing wear and tear, offering a sustainable and cost-effective alternative to conventional systems.
Frequency conversion water supply equipment also excels in improving system performance and reliability. By maintaining optimal water pressure and mitigating issues such as water hammer and pressure surges, it ensures smooth and uninterrupted operation. Additionally, the intelligent control mechanisms embedded in these systems provide real-time monitoring and diagnostic capabilities, allowing for proactive maintenance and swift response to any anomalies. This leads to reduced downtime and enhanced overall reliability, making frequency conversion water supply equipment a robust choice for modern water supply management.
 

Equipment structure composition

The complete set of variable frequency and constant pressure water supply equipment mainly consists of: main pump unit, variable frequency speed regulation water supply control system, pressure stabilized pump unit (optional component), pressure stabilized air pressure tank (optional component), etc.

Main pump group: The main pump group for water supply is mainly composed of CDL vertical multi-stage pipeline centrifugal pump and steel foundation made by welding channel steel and steel plate. Generally, it is composed of 2 ~ 3 pumps of the same model The water supply control system with frequency conversion and speed regulation is mainly composed of AC frequency conversion regulator, programmable controller (microcomputer), digital PID regulator, operation actuator and protection circuit, pressure sensor, water level controller of reservoir (for water shortage protection), etc.

Stabilized pump unit: Stabilized pump unit is mainly composed of one or two small flow pumps whose water supply head is greater than or equal to the water supply head of the main pump It is automatically put into operation only when the pipe network is small or zero flow (for example, at night). Maintain the pressure of the pipe network to make up for the leakage of small water flow or pipe network and make the main pump stop when the water flow is small or zero.

Pneumatic tank: Pneumatic tank is a kind of closed container When supplying water with large flow, the gas stored in the pressurized tank of the water pump is compressed; The water stored in the tank is pressurized into the water distribution pipe network when the water is supplied with small flow or zero flow, and the main pump is in a shutdown state when the water is supplied with small flow or the pipe is leaked. The main pump is in a shutdown state when the water is supplied with small flow or zero flow.

Equipment characteristics

1.Compact structure, small volume, small land occupation, no need to build high-level water tanks or water towers, low investment, quick installation and convenient centralized management;

2.Adopt frequency converter and related components, design is reasonable, operation is simple, performance is reliable, and complete automatic operation;

3.With a variety of fault display and records for future reference, perfect undervoltage, overvoltage, overload, short circuit, lack of phase, water shortage, automatic protection, shutdown and other protection functions, safe use and simple maintenance;

4.Freely set the pipe network pressure according to the actual water consumption and adjust the speed of the pump to make it always in a high-efficiency operation state; Adopting several small power pumps instead of high power pumps is more suitable for the sharp change of flow rate and avoids the phenomenon of "big horse-drawn trolley". The energy saving effect is more remarkable Compared with constant speed pump water supply, the reactive power loss of overpressure and backflow is eliminated, and the energy saving rate reaches 20-50%;

5.Soft start and soft stop of water pump realized by frequency converter or soft starter to avoid impact of power grid and pipe network Without water hammer phenomenon, the running noise of equipment greatly prolongs the service life of related equipment;

6.Multiple pumps in a variety of cycles are thinning the running time of each pump to avoid one of the pumps due to idle and rust;

7.Supply water directly to users to avoid secondary pollution of water quality;

8.Varieties and specifications are complete and arbitrary, even though the supporting application range is wide;

9.Control programming can realize various controls according to users' needs For example: time switch system fire linkage small flow and zero flow automatic shutdown sleep centralized management of upper computer, etc.;

10.Atmospheric water supply in pipe network can avoid freezing crack of exposed pipeline; The water pressure of equipment can be adjusted arbitrarily as required. The water pressure requirements of the top floor of the building during the peak period of water consumption.

Scope of application

1.Domestic water for enterprises and institutions in high-rise urban residential quarters

2.All kinds of industrial water (such as cooling water circulation and other production water requiring constant pressure water supply)

3.Kinds of waterworks, sewage treatment plants, airports, household irrigation and drainage stations and sprinkler irrigation stations

4.Environmental protection water treatment infiltration system production line processing system industrial workshop cleaning

5.Constant pressure oil transportation system of oil depot and oil port of oilfield oil pipeline

6.Renovation and renewal of the old water supply system (high-level water tank of air tank water tower)

7.Hot water supply system of stable pressure water supply system of industrial boiler