Product Overview
Intelligent series variable frequency water supply equipment features stability and ease of maintenance, primarily consisting of three main parts: pump units, pressure boosting and stabilizing equipment, and control systems. The pump units determine the equipment's water supply capacity; the pressure boosting and stabilizing equipment stores energy for pressure stabilization to handle minor water supply needs and normal pipeline leaks, reducing the frequency of pump startups and shutdowns, thereby extending the equipment's lifespan. This pressure boosting and stabilizing equipment is also crucial for achieving automated water supply; the control system coordinates the stable operation of the system; and when water demand increases and pipeline pressure drops, the pump automatically starts to supply water. Automatic water supply systems, categorized by the method of achieving automation, include air pressure automatic water supply systems and variable frequency speed constant pressure water supply systems, each with distinct features. They are suitable for various applications such as domestic water supply, building fire protection, production water supply, and sprinkler systems.
Pumps are the foundation of water supply systems, essential for achieving their basic functions. The pumps supplied with the water supply equipment are manufactured according to relevant standards and can be different types of pumps with varying flow rates and head. Depending on the specific water supply requirements, the product can be a parallel operation of multiple pumps, or a pump set with an additional booster pressure regulating (low flow) pump set to switch with the main pump within the low flow range, further saving energy and reducing water supply costs. According to the different water supply purposes of the equipment, products can be classified into residential, fire protection, sprinkler, and residential-fire protection types.
Application Scope
1. High-rise buildings with swimming pools, hotels, schools, residential communities in towns and cities, corporate institutions, and rural living water supply for new rural construction.
2. Factory and mining enterprise's potable or production water supply.
3. Water supply and drainage for various water plants, water stations, sewage treatment plants, agricultural irrigation and drainage stations, etc.
4. High-rise buildings, residential complexes, and corporate entities centralized hot water supply.
5. Pressurization of cooling and recirculating water in production and daily life.
6. Constant pressure oil transportation for oil pipelines, oil storage facilities, and gas stations.
Product Features
1. Energy-saving and consumption reduction:
Energy-saving of 50%-90%; fully utilize the existing water pressure in the public water supply network, supplement as needed, and the pump stops working when the water pressure meets the requirements, achieving remarkable energy-saving effects.
Save Water by 20%——Fully enclosed structure, ***eliminates water leakage, dripping, seepage, and the need for regular cleaning and disinfection, etc., directly connects to the municipal water supply network, achieving significant water conservation. 2. Sanitation:
Equipment operates in an enclosed system, pure tap water is pressurized by the equipment and supplied directly to the users, preventing algae growth, and any foreign objects are isolated from the air, meeting the increasingly high demands for drinking water.
3. Save on Investment:
Save 50% in investment, as there's no need to build a water storage or reservoir, thus reducing civil engineering investment. Additionally, leveraging the existing pressure of the water supply network, no need to boost pressure from zero, which allows for a smaller pump selection, significantly reducing equipment investment.
4. Small footprint, easy installation:
Connect the in and out water pipes on-site, short construction period, and very easy installation. Since there's no need to build a pond or water tank, it significantly reduces the land area required, allowing real estate developers to fully utilize the saved land to enhance property utilization.
5. Low property management fees, easy to manage:
The equipment operates fully automatically with digital control, featuring low daily operational costs. It automatically shuts down during power or water outages and restarts upon power or water restoration. Since it doesn't produce pollution, there's no need for cumbersome cleaning procedures.
6. Power out, water on:
Due to the equipment having a bypass pipe directly connected to the user's pipeline network, during power outages, although the pressure pump stops operating, the low-level users in the building can still maintain water supply.
7. High functionality, advanced intelligence level:
The equipment employs a human-machine variable frequency control technology, featuring soft start, overload, short circuit, overvoltage, undervoltage, phase loss, overheat, and overspeed protection functions. The equipment operates reliably.
8. *** Versatile Applications:
This unit can be used for domestic water supply, fire fighting water supply, and also for industrial water supply. Any model of pump can be configured as needed, and a specific type of pump must be installed for certain applications.
Operating Principle
During normal system operation, the pressure sensor on the user's water supply network samples water pressure data and converts the pressure signal into an electrical signal, which is then transmitted to the PID regulator. The regulator compares and calculates this signal against the user-set pressure value, converting the result into a frequency adjustment signal and a pump start signal. These signals are sent to the variable frequency drive and the PLC programmable controller, respectively. The variable frequency drive adjusts the power frequency of the pump motor accordingly, thereby controlling the pump's speed. The PLC, based on the pump start signal transmitted by the PID regulator, controls the activation or deactivation of the pumps. By controlling the number of pumps in operation and the speed of the variable frequency pumps, the water pressure in the supply network is maintained at a constant level as pre-set by the user, ensuring that the water supply from the pump group matches the continuously changing water demand in the user's network, achieving the goal of "variable pressure water supply."
SelectionDescription
The design of the constant-pressure water supply equipment is determined based on user's water supply pipeline data, including pressure, flow rate, actual water usage, and building height. The volume of the regulator used in the equipment is estimated to meet the requirements of the water flow. If the water pipeline is too narrow and the flow rate cannot meet the water usage demands during peak hours, the volume of the regulator needs to be recalculated. ***The formula is as follows:
Volume V = (Q_out - Q_in) * Δt
Q_in = potable water inflow during the daily high water usage peak
Q_out = daily peak water usage by customers
Duration of peak water usage period
