DINKONDA GLOBAL Power Plants Special 7-45D Series D-type Coupling Transmission, Backward Plate Blades, High-efficiency And Energy-saving Centrifugal Fan

DINKONDA GLOBAL Power Plants Special 7-45D Series D-type Coupling Transmission, Backward Plate Blades, High-efficiency And Energy-saving Centrifugal Fan

Product Overview
The 7-45D high-efficiency energy-saving centrifugal fan is an efficient centrifugal ventilation and induced draft equipment developed specifically for industrial boilers, cogeneration, and thermal power generation systems. It adopts a D-type coupling transmission structure and is suitable for coal-fired boilers, biomass boilers, and circulating fluidized bed boilers. It can be used as a boiler induced draft fan, supply fan, and also for flue gas transportation in dust removal and desulfurization systems. The product adopts a backward plate type blade aerodynamic model, which has been optimized through fluid simulation. The total pressure internal efficiency of the fan can reach 86.5%, and the noise level compared to A sound level is Ls=11.5dB. Compared with traditional boiler fans, the energy-saving effect is significant, and the performance is at the advanced level in China, which can meet the requirements of long-term continuous and stable operation in power plants and industrial sites.

Structural Composition
1. Spiral shell casing: welded with thick steel plates, with strong overall rigidity and resistance to smoke erosion. The casing is equipped with maintenance doors and lifting lugs for easy impeller maintenance and equipment lifting; The integrated steel welded base ensures the coaxial accuracy of the fan, bearing box, and motor, reducing operational vibration.

2. Impeller component: a high-efficiency blade structure with a backward plate shape, welded as a whole, and the whole machine undergoes high-precision dynamic balance correction; Wear resistant coating can be applied according to the working conditions of smoke and dust, with excellent wear resistance and ensuring long-term operation.

3. Inlet of current collector: streamlined convergent current collector with flange connection structure, low intake resistance, uniform airflow distribution, easy to connect and install with pipelines and corrugated expansion joints.

4. D-type transmission system: coupling direct transmission, equipped with independent oil bath lubrication bearing box, excellent heat dissipation performance, can be equipped with temperature and vibration sensors to achieve online monitoring of equipment status; Equipped with a safety coupling protective cover to ensure the safety of on-site operations.

5. Drive motor: equipped with high-power three-phase asynchronous motor, high protection level, suitable for high temperature and dusty environment in boiler room; Support variable frequency speed regulation, which can adjust the air volume and pressure according to changes in boiler load.

6. Complete set of accessories: can be matched with imported air dampers, mufflers, compensators, and shock-absorbing bases; Support customization of left and right rotation directions, multiple air outlet angles, and adaptability to on-site pipeline layout requirements.

Product Features
1. Efficient and energy-saving, with advanced performance indicators
Adopting a backward plate type dedicated pneumatic blade, the total pressure internal efficiency at the operating point is as high as 86.5%; The performance curve is flat, the economic operation area is wide, and high efficiency can be maintained within the variable load operation range of the boiler. Compared with traditional boiler induced draft fans, it effectively reduces power consumption and saves operating costs.

2. Low noise design
The noise index of the fan is Ls=11.5dB, and the noise control has reached the advanced level in China, improving the on-site working environment of the boiler room and reducing the investment in noise reduction facilities.

3. High full voltage output capability
The fan has high full pressure output, which can overcome the resistance of the boiler body, dust removal, and desulfurization system pipelines, and is suitable for high resistance working conditions of large and medium-sized boiler systems.

4. Stable and reliable operation
The impeller undergoes strict dynamic balance verification, the entire machine has a rigid base, low vibration amplitude, and is suitable for 24-hour uninterrupted continuous operation; The impeller has undergone wear-resistant strengthening treatment and can adapt to high-temperature flue gas media containing dust particles.

5. Convenient maintenance and repair
The casing is equipped with a maintenance door for easy cleaning of dust accumulation on the impeller; The lubrication points of the bearing box are clear, and the daily maintenance workload is small; Supports two air volume control methods: air door adjustment or frequency conversion adjustment.

6. Strong customization and adaptation capabilities
The angle of the air outlet, wear-resistant treatment of the impeller, and rotation direction can be customized according to the actual working conditions of the project, matching different tonnage boiler systems.

Technical Parameters
Product model: 7-45D high-efficiency energy-saving centrifugal fan
Transmission mode: D-type coupling transmission
Blade Form: Backward Plate Blade
Operating point full pressure internal efficiency: 86.5%
Noise ratio A Sound level: Ls=11.5dB
Transport medium: boiler flue gas, dusty gas, air
Applicable temperature of medium: ≤ 250 ℃
Airflow range: 15000-170000 m ³/h
Full pressure range: 1600-4600 Pa
Lubrication method: Bearing box oil bath lubrication
Rotation direction: Right/Left customizable
Air outlet angle: customized according to various specifications and angles as needed
Main applications: boiler induced draft fan, boiler supply fan, dust removal and desulfurization ventilation

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.