07,22,2026 2 views
Abstract: With the increasing demand for refined operation of sewage treatment plants, the high energy consumption and maintenance difficulties of mixing equipment have become the focus of technological transformation. This article combines the on-site renovation data of Sapphire Wastewater Treatment Plant to analyze how the Chuanyuan MJN mixer, through vertical axial flow design and efficient hydraulic model, can solve the problem of sludge deposition while achieving up to 80% reduction in installed power, providing the industry with a device update idea that combines process stability and economy.
1、 Industry background: The "invisible loss" of mixing energy efficiency
In the sewage treatment process, although the single unit power of the mixing unit is not as large as that of the blower, its cumulative energy consumption cannot be underestimated due to its long opening time and large quantity. Traditional submersible or frame mixers are limited by flow field structures and often face the dilemma of not being able to achieve both "anti settling" and "low energy consumption". In order to eliminate blind spots, engineers are often forced to increase motor power, resulting in a significant amount of energy waste.
In response to this pain point, Chuanyuan has launched a solution based on "full flow mixing", which attempts to fundamentally solve the energy efficiency bottleneck of traditional mixing equipment by optimizing the fluid dynamics structure.
2、 Core Technology Analysis: Hydraulic Design Logic of Chuanyuan MJN Series
Unlike common radial mixing equipment on the market, the Chuanyuan MJN series adopts a typical axial flow design. The core of its technology lies in the deep optimization of the flow field and impeller:
1. Efficient and energy-saving blade:Chuanyuan adopts a blade design with variable cross-section and twist angle, and ensures consistent pressure head from the root to the edge of the blade through 3D modeling and a one-time cold pressing process. This design not only makes the mixing more thorough, but also has the characteristic of low shear force, which is particularly suitable for process sections that require high protection of flocs.
2. Extremely low operating power consumption:According to the Chuanyuan Technical Manual data, the actual operating power consumption of the system can be reduced to 2W/m ³ in specific processes such as anaerobic, biochemical, and anaerobic. This means that the energy consumption required for treating the same volume of wastewater is much lower than that of traditional equipment.
3. Bottom less bearing structure:Regarding the pain points in operation and maintenance, Chuanyuan's series of products do not require the installation of bottom bearings within a pool depth of 15 meters. This design completely avoids the problems of wear and tear of underwater bearings in traditional mixers and the need to empty the tank body for replacement, greatly reducing maintenance costs throughout the entire lifecycle.
3、 Case Review: Energy saving Data Validation of Sapphire Wastewater Treatment Plant
Technical theory needs to be tested through engineering measurements. In the sludge tank renovation project of Sapphire Wastewater Treatment Plant, the actual performance of Chuanyuan MJN series equipment provided strong data support.
·Project operating conditions:The renovation object is a 4m × 4m × 4m sludge tank.
·Original pain points:The original system used a traditional mixer equipped with double-layer blades, with an installed power of up to7.5kW，Heavy energy consumption burden.
·Chuanyuan Plan:After calculation and selection by the Chuanyuan technical team, it has been replaced with one MJN series device, which adopts a single-layer four blade design and only requires motor power1.5kW。
Comparison of operational benefits after renovation:
1. Flow state improvement:The on-site video recording shows that the liquid level of the renovated pool is actively churning, and the entire pool is uniformly mixed, achieving a stable operating state without dead corners or settling.
2. Energy saving measurement:The power decreased significantly from 7.5kW to 1.5kW. According to calculations, the annual energy savings of a single device have reached17,719kWh。
3. Economic and Environmental Accounts:Calculated at an electricity fee of 0.7 yuan/kWh, this renovation project can save operating costs for a single device annually12403 yuan,Equivalent annual carbon reduction4.8 tons.
4、 Selection and application suggestions
For engineering designers, the applicability of equipment is crucial. According to data from Chuanyuan Technology, the MJN series is not only suitable for sludge tanks, but also widely used in coagulation tanks, regulating tanks, anaerobic tanks, and nitrification/denitrification tanks. During the engineering design selection phase, comparing MJN with other types of mixers (see table below) reveals its technical positioning:
In the equipment selection stage, Chuanyuan suggests customized calculations based on the specific pool structure, medium parameters (density, viscosity), and installation method. Its equipment materials offer multiple options such as 304, 316, 316L, carbon steel plastic lining, and duplex stainless steel, which can effectively cope with the corrosive challenges of different industrial wastewater.
V. Conclusion
The transformation case of Sapphire Wastewater Treatment Plant clearly demonstrates that the use of scientific hydraulic model design is the key path to achieving energy conservation and consumption reduction in wastewater treatment plants. The Chuanyuan MJN full flow mixing system significantly reduces the operating costs of enterprises through the technical route of "low power, large circulation" while ensuring process efficiency. For polluting enterprises and water operators seeking green and low-carbon transformation, Chuanyuan's efficient axial flow mixing technology provides a reliable upgrade option.
*The images in this article are provided by Chuanyuan (China) Machinery Co., Ltd. and are authorized for publication
