Puede fabricar 26 series de productos, incluyendo bombas de circulación para grandes centrales eléctricas, bombas de condensación para grandes centrales eléctricas, bombas petroquímicas, bombas multietapa, bombas de aguas residuales y lodo, bombas multietapa autoequilibradas, bombas de doble succión y única etapa tipo split, y bombas centrífugas de succión simple y única etapa.
La elección de más de cientos de miles de clientes, cubriendo industrias como minería de carbón, metalurgia, química, energía, recursos hídricos, alimentos, municipalidades y protección ambiental, y exportando a Asia Sudeste, África, América y otros lugares.
La empresa fue la primera en la industria en obtener las certificaciones internacionales del sistema de calidad ISO 9001:2008, del sistema de gestión ambiental ISO 14001 y del sistema de gestión de seguridad y salud ocupacional GB/T 28001, además de la certificación API 610 de la Asociación Estadounidense del Petróleo.
La empresa, fundada en 1989, es una empresa nacional de alta tecnología integral que integra diseño, investigación y desarrollo, fabricación y servicios; actualmente es una empresa clave en la industria china de bombas centrífugas y una de las grandes fábricas especializadas.
Con productos innovadores, calidad excepcional y servicios integrales, buscamos la verdad y la pragmática, avanzamos con iniciativa, y nos esforzamos por lograr el objetivo de ser "la marca líder en el campo de aplicación de bombas centrífugas en el país"! Raigada en Hunan, orientada a todo el país y hacia el mundo!
The LCY type long-shaft vertical pump is Long-shaft pump A large flow submerged long-shaft pump developed and designed by the manufacturer "Changsha Zhonglian Pump Industry Co., Ltd." This pump can not only be used to transport clean water below 55°C, but also to transport slightly corrosive rainwater, sheet water, industrial wastewater, etc. If the medium temperature is above 55°C, customer demand can also be met by changing the material of the pump body and flow parts. After years of market practice, the LCY type long-shaft vertical pump designed by our company has been widely used in agricultural irrigation, industrial wastewater treatment, municipal supply and drainage, flood control and drainage, receiving a good market response.
Material table of parts of the LCY type long-shaft vertical pump
Main parts
Clean water
Wastewater
Seawater
I
II
III
IV
Trumpet mouth
HT200
HT20/QT400-18
HT200Ni2Cr
Stainless steel 321/316L
Impeller
HT200
QT400-18/cast steel/ZG1Cr13Ni1
ZG1Cr18Ni9Ti
ZCuZn16Si4/316L stainless steel
Sealing ring
HT200
QT400-18/2Cr13
HT200Ni2Cr
ZCuZn16Si4/316L stainless steel
Vane guide body
HT200
QT400-18/cast steel
HT200Ni2Cr
ZG00Cr17Ni14Mo2
Lifting tube, protective tube
Q235-A
Q235-A
1Cr18Ni9Ti
00Cr17Ni14Mo2
Shaft
45/2Cr13
45/2Cr13
1Cr18Ni9Ti
00Cr17Ni14Mo2
Shaft bushing
2Cr13
2Cr13
lCr17Ni2
1Cr17Ni2
Guide bearing
PTFE/Sailong/stearin rubber
Guide bearing body
HT200
HT200/QT400-18
HT200Ni2Cr
ZG00Cr17Ni14Mo2
Threaded coupling, sleeve
45/2Cr13
40Cr/2Cr13
1Cr17Ni2
1Cr17Ni2
Curved water outlet tube
Q235-A
Q235-A
1Cr18Ni9Ti
00Cr17Ni14Mo2
Motor support
Q235-A
Q235-A
Q235-A
Q235-A
Structural diagram and structural features of the LCY type long-shaft vertical pump
1. Filter 2. Trumpet mouth 3. Impeller 4. Vane guide body 5. Sealing ring 6. Tapered sleeve 7. (lower) Guide bearing 8. Impeller shaft 9. Threaded coupling 10. Lower lifting tube 11. Lower shaft 12. Lifting tube 13. Middle shaft 14. Guide bearing body 15. (middle) Guide bearing 16. Lifting tube adjustment 17. Upper shaft 18. Curved water outlet tube 19. Packing body 20. Stuffing box 21. Motor support 22. Bearing body 23. Bearing bushing 24. Bearing body stuffing box 25. Adjusting nut 26. Pump coupling 27. Motor coupling
The main features of the LCY type long-shaft vertical pump are :
1. The LCY type long-shaft vertical pump is optimized by hydraulic design software, with superior performance, fully considering the wear resistance of the impeller and vane guide body, which greatly increases the service life of parts such as the impeller and guide body; the product operates stably, safely, reliably, and energy-efficiently.
2. The LCY type long-shaft vertical pump has a filter at the inlet with an appropriate opening size, which effectively prevents large particles that may damage the pump from entering, while minimizing inlet losses and improving pump efficiency.
3. The impeller of the LCY type long-shaft vertical pump uses balance holes to balance axial force; the front and rear plates of the impeller are equipped with replaceable sealing rings to protect the impeller and vane guide body.
4. The rotor components of the LCY type long-shaft vertical pump include the impeller, impeller shaft, intermediate shaft, upper shaft, coupling, adjusting nut, and other parts.
5. The intermediate shaft, lifting tube, and protective tube of the LCY type long-shaft vertical pump are multi-section; the shaft is connected by threaded or sleeve couplings; the number of lifting tubes can be adjusted according to user needs to adapt to different submerged depths. The impeller and guide body can be single-stage or multi-stage, adapting to different lift height requirements.
6. The length of the single shaft of the LCY type long-shaft vertical pump is reasonable and has sufficient rigidity.
7, The lifting tube of the LCY type long-shaft vertical pump is connected by flanges, and between two adjacent lifting tubes there is a guide bearing body. Both the guide bearing body and the vane guide body are equipped with guide bearings made of PTFE, Sailong, or stearin rubber. The protective tube protects the shaft and guide bearing. When transporting clean water, the protective tube can be omitted and external cooling and lubrication water connection to the guide bearing is not necessary; when transporting wastewater, the protective tube must be installed and external cooling and lubrication water must be connected to the guide bearing (the pump has an automatic sealing system that prevents wastewater from entering the bearing after the pump is turned off).
8. The residual axial force and weight of the rotor components of the LCY type long-shaft vertical pump can be supported by the thrust bearing inside the motor support or by the motor with thrust bearing. The thrust bearing is lubricated with grease (also called dry lubrication) or lubricating oil (also called light oil lubrication).
9. The shaft seal of the LCY type long-shaft vertical pump is a packing seal; replaceable bushings are installed in the shaft seal and guide bearing to protect the shaft. The axial position of the impeller is adjusted by the adjusting nut on top of the thrust bearing or inside the pump coupling, which is very convenient.
Product Parameters
200LCF-23A×2-LH
200——The pump outlet diameter is 200 mm
LCF——Long shaft pump for seawater
23——The design head of the pump's single point when the impeller is not trimmed is 23 m (total pump head = head per stage × number of impeller stages)
A——Impeller outer diameter trimming code
×2——Number of impeller stages is 2 (omitted if 1)
L Submerged depth (Lw40m, unit in m)
H——Pump with protective tube (omitted if no protective tube).
Note: The 100 and 150 caliber models have the format 100LC50-20Ax2-L, 150LC140-15Ax2-L, where 50 and 140 represent the pump design flow. The long shaft vertical pump models from 200 to 1000 caliber do not include flow parameters.
Why Choose Us?
Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.
FAQ
Q
What products do you mainly produce?
A
Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.
Q
Can you help me choose a model?
A
Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.
Q
Why is the price quotation so slow?
A
Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.
Q
What information should I provide when I need a quote?
A
Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details.
If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.
Q
Do you have centrifugal pumps in stock?
A
There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.
Q
What is your usual delivery time?
A
Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。