Qingdao Industrial Water Pump Energy-saving Renovation

Keywords: Energy-saving pump manufacturers, Pump energy-saving retrofit technology, Energy-saving pump prices, Energy-efficient pump manufacturers, Water plant energy-saving technology, Water plant energy-saving retrofits, Principle of pump energy efficiency Energy conservation and consumption reduction have become key components of China's economic development planning outline, imposing stricter emission reduction targets on high-energy-consuming enterprises in industrial sectors such as power, steel, non-ferrous metals, petrochemicals, and water treatment. As a core fluid transport equipment in industry, pumps account for a major portion of energy consumption and have become a primary issue to address in energy-saving efforts. Traditional energy-saving methods, mainly frequency conversion and structural modifications, have reached a bottleneck after long-term development with limited room for further improvement. www.qdyuke.com Traditional pump energy-saving methods typically involve frequency conversion, impeller replacement, or switching to high-efficiency pumps. The first two methods achieve energy savings by sacrificing pump flow and head, reducing pump efficiency without fundamentally solving the problem. Replacing pumps often requires changing motors and entire supporting systems, leading to high investment costs and waste. Moreover, due to the lack of breakthrough innovations in traditional pump technology, pump efficiency often fails to meet expectations, making cost recovery difficult. Polymer ultra-smooth energy-saving technology requires low investment, involves no modifications to the pump, has a short project duration without affecting production, and offers a quick return on investment, sometimes within just one month. Additionally, due to its excellent protective properties, pump service life is significantly extended, improving equipment operating efficiency and increasing benefits. Polymer ultra-smooth technology can improve the efficiency of new pumps by 2-5%. For old pumps that have suffered corrosion and wear, this article also provides a rapid repair coating process that can restore pump efficiency by approximately 15%. For the water supply industry, the high fluid efficiency of pumps can significantly increase unit water output and head while reducing output power, thereby improving equipment operating efficiency and achieving energy-saving and emission-reduction effects. Typically, the volumetric loss ηv, hydraulic loss ηh, and mechanical loss ηm in centrifugal pumps are the main factors constituting pump efficiency, meaning the total pump efficiency η is the product of these three partial efficiencies: η = ηv · ηh · ηm To improve pump efficiency, it is necessary to minimize mechanical and volumetric losses, which can be achieved by optimizing the pump type design, manufacturing, and assembly accuracy of the flow-passing parts inside the pump casing. On the other hand, improving the hydraulic loss ηh of the fluid can also help. Hydraulic losses include impact loss: Δh1 = k1(QT - Q0)² and frictional loss: Δh2 = k2QT² where QT is the theoretical flow rate, Q0 is the design flow rate, and k1, k2 are proportionality coefficients. This article will explore solutions to reduce the frictional loss Δh2 in hydraulic losses. According to resistance loss theory, fluid flow is divided into laminar, transitional, and turbulent regions, depending on the Reynolds number Re. In centrifugal pumps, the fluid Reynolds number Re > 4000, meaning the flow enters the turbulent region, where the friction coefficient λ no longer changes with Re but depends on the relative roughness ε/d. That is: λ = 1 / [1.74 - 2log(2ε/d)]² Resistance loss hf is proportional to the friction coefficient λ. Thus, reducing the roughness ε inside the pump body to decrease localized turbulence is one way to improve pump efficiency. From the perspective of pump corrosion, a rough metal surface and intense localized turbulence accelerate metal corrosion, causing the protective oxide layer to detach early and be carried away by water flow. Localized turbulence can also lead to cavitation, where the high-impact forces from collapsing bubbles loosen the metal surface layer, exacerbating corrosion. In some working conditions, fluids containing solid particles cause abrasive wear, making the pump surface rougher or even leading to perforations. The polymer ultra-smooth metal coating is a drinking water coating system (pump energy-saving retrofit) produced by an international polymer company. It improves fluid equipment efficiency and protects against chemical corrosion. This (pump energy-saving retrofit) material meets the standards of the U.S. National Sanitation Foundation (ANS/NSF61) and complies with drinking water standards under Clause 25 of UK water supply regulations. In November 1999, the Wuhan Testing Station of the National Urban Water Supply Quality Testing Network also issued a test report (990111—1) confirming that the ultra-smooth coating (pump energy-saving retrofit) immersion solution meets national drinking water hygiene standards. Therefore, the polymer ultra-smooth coating (pump energy-saving retrofit) material can be widely used in urban water supply systems. www.qdyuke.com The polymer ultra-smooth coating (pump energy-saving retrofit) material is a high polymer wear-resistant material composed of two components: a base material and a reinforcing material. The polymer ultra-smooth coating (pump energy-saving retrofit) material features a smooth surface with low roughness, being 20 times smoother than polished stainless steel. Its excellent hydrophobic properties, superior to inert materials, result in minimal water adhesion, significantly improving fluid efficiency. It also possesses outstanding mechanical properties, ensuring that the coating remains intact and does not detach during high-speed rotation of the pump impeller. www.qdyuke.com