ZW type axial flow evaporative circulation pump
Diameter:200~1800 mm
Flow:150~54000 m3/h
Head: 1.5~7 m
Temperature: -10~+180℃
S.G：≤1.8
Application Scope
ZW axial flow evaporation circulation pump is widely used in large flow and low head occasions as a conveying or forced circulation pump, such as MVR water treatment, vacuum salt making, alumina, sodium sulfate, alkali making, sugar making, new energy, seawater desalination and other fields.
Product Features
■ The impeller hydraulic design is suitable for the characteristics of the evaporation process, with high hydraulic efficiency, which better adapts to fluctuations in evaporation load and is beneficial for energy saving and increased production in the evaporation system.
■ Adjustable blades are used to accommodate different working conditions, ensuring smooth and reliable operation.
■ Advanced technologies in weld shaft and thermal compensation effectively reduce investment costs.
■ Slow rotation speed and low linear velocity designs result in minimal damage to crystals.
■ Suspension installation solves thermal expansion stress compensation, eliminating the need for pump foundations and expansion joints in the pipeline.
■ Low vibration and noise, leading to stable operation and energy efficiency.
Product Structure
■ The pump body adopts a bent pipe structure, either welded or pressed as a whole, meeting various working conditions.
■ The pump impeller features cantilever support, a spherical hub, and adjustable impeller blades.
■ The pump shaft uses butt welding technology, with suitable materials for areas in contact or potentially in contact with the medium.
■ Mechanical seals and packing seals are interchangeable, requiring only a few replacement parts.
■ The mechanical seal adopts a cartridge structure, making installation and disassembly convenient, with reliable operation.
■ The cylindrical support holds the rotor components, with an enlarged oil storage chamber in the bracket, featuring a prominent oil level observation window and a constant oil level oiler, extending lubrication maintenance intervals and prolonging bearing life.
■ The pump can be driven by a narrow Vbelt (15N or 25N type), gear transmission, or direct coupling with the prime mover. The pump is mounted in a suspended manner (E installation type), and for motors with power ≥ 200kW, a universal joint drive is used.The schematic diagram of the pump structure is as follows (suspended installation structure).
Material name | Material code | Part Name | |||
National Standard | American Standard | Impeller | Impeller cover | Casing(including nipple) | |
corrosion-resistant cast iron | Aluminum cast iron, gray cast iron Ductile cast iron Cr28 Cr34 | C.I D.I | ● ● ● ● | ● ● ● ● | |
carbon steel | Q235-A 26、35 | A A36 WCA、WCB | ● ● | ||
Stainless steel | （ZG）00Cr18Ni10 （ZG）0Cr18Ni9 （ZG）0Cr18Ni12Mo2Ti （ZG）00Cr17Ni14Mo2 （ZG）0Cr18Ni9Ti （ZG）1Cr18Ni9Ti （ZG）1Cr18Ni12Mo2Ti Alloy 20 1Cr13 | CF-3(304L) CF-8(304) CF-8M(316） CF-3M(316L) CN-7M(320) CD-4MCu | ● ● ● ● ● ● ● ● ● | ● ● ● ● ● ● ● ● ● | ● ● ● ● ● ● ● ● ● |
Duplex stainless steel | 0Cr26Ni5Mo2 0Cr17Mn13Mo2N 00Cr18Ni5Mo3Si2 | (AISi)329 | ● ● ● | ● ● ● | ● ● ● |
corrosion-resistant alloys | Titanium：TA1、TA2、TA3 Titanium alloy：TA9、TA9-1、TA10 | Monel Hastelloy B Hastelloy C Ni～Resist1 Ni～Resist2 Ni～Resist3 | ● ● ● ● ● ● | ● ● ● ● ● ● | ● ● ● ● ● ● |
Main Configuration | Manufacturer standard | Optional Configuration |
Motor | Domestic brands (Chongqing/Xi'an) | Nanyang, Jiamusi, ABB, Innomotics or designated brands |
Bearing | Havalo | SKF，NSK，FAG or designated brands |
Reducer | Domestic brands (Zibo/Zhengzhou) | SEWShandong Huacheng, Zhengzhou Machinery Research Institute, Siemens, Flender, SEW |
Coupling | Pin coupling |
Product?s | |||||
WeChat Official Account