4-2X73 series centrifugal fan
Product introduction: 4-2X73 series centrifugal fan is mainly used for large induced draft and dust removal systems in metallurgy, electric power, cement, and other industries. Due to the development of production, the boiler capacity has increased, the volume of steelmaking furnace has also increased, and the amount of flue gas in the smelting process has also increased, causing serious air pollution. With the increasingly perfect and strict environmental protection regulations, it is required that the smoke and dust must be purified, so the dust removal fan is designed to be double suction large-scale, that is, with large flow, medium and high-pressure Low noise, common cold and hot media, flat performance curve and wide efficient area. If the performance is similar, it can also be used in other ventilation systems, but the medium temperature shall not exceed 250 ºC. Before the induced draft fan, a dust removal device must be installed to ensure that the dust content in the flue gas entering the fan is reduced as much as possible (generally not more than 200mg/m3). According to the use of general users, the dust removal efficiency shall not be less than 85%, otherwise, the service life of the impeller will be shortened.
Product features:
1. The design of this series of fans is based on the aerodynamic sketch finalized by the fan model test and adopts the patented technology of the inclined cone air inlet, the long-life backward impeller, the oil-proof bearing box, the self-aligning and differential regulating doors, and the turning gear (according to the user's needs) and other advanced proprietary technical achievements.
2. Wide efficient range, easy to select efficient working point.
3. The patented technology of the inclined cone air inlet eliminates the strong eddy current in front of the air inlet, ensures the air inlet stability, and improves the overall efficiency of the fan
4. The impeller adopts the backward wing blade, which reduces the impact of airflow, has good stability and is not easy to overload the motor. The wing wear-resistant nose blade is adopted, and the wear-resistant lining plate is added at the easily worn part, which increases the strength and wears resistance of the impeller, and improves the service life of the impeller.
5. Anti-leakage bearing box adopts a lapped oil slinger to fling oil from the high-speed rotating bearing to the inner wall of the bearing box and flow back to the oil pool. The lower part of the labyrinth seal is equipped with oil return hole to return some unfiltered oil from the oil slinger to the oil pool. The outer skeleton oil seal can increase the resistance force along the axial direction to intercept some thin oil back to the oil pool, with good dust prevention performance. The upper part of the bearing box is equipped with a breather plug, which reduces the micro-positive pressure inside the bearing box. The side of the bearing box is equipped with an oil level indicator, which can truly display the oil level. Sliding bearings can also be used according to user needs.
6. Self-aligning and differential regulating valves are equipped with self-aligning bearings at the fulcrum of guide vanes. Self-aligning linkage is adopted between the regulating valves on both sides. Due to the use of transmission handles with different angles, the opening of the vanes in the process of adjustment is different, thus realizing differential adjustment. The torque is smaller, and there is no "dead" point during operation and adjustment. The adjustment is flexible, labor-saving, safe and reliable, ensuring that the actuator motor is not overloaded
7. The fan is complete, including the coupling cover, companion flange of air inlet and outlet, anchor bolt of the whole machine, soft connection of air inlet and outlet, temperature gauge (Pt100), vibration measuring device, and slow rotation device, electric actuator or muffler, if necessary
8. The relevant parameters are complete, including the weight of main parts, static and dynamic loads, rotor rotational inertia, regulating gate resistance moment and overall dimensions, etc
9. Key protection measures for product quality:
(1) Design and manufacture according to industry standards.
(2) Fan performance is converted according to the model test
(3) Impeller and main shaft shall be subject to NDT according to standards.
(4) The impeller adopts reinforced wear-resistant impeller
(5) The air inlet and outlet are equipped with soft connection to prevent deformation stress interference between the pipe and the fan.
(6) The rotor adopts a vibration protection device.
(7) The slow rotation device (at high temperature) is used to prevent the shutdown shaft from bending.
Product Parameters
Detailed Photos
Certifications
Packaging & Shipping
1) The equipment is equipped with a number of signs such as a product nameplate, rotation direction sign, wind direction sign, grounding sign, lifting sign, safety warnings, and so on.
2) Product nameplate mainly includes the contents of the equipment: main technical parameters (flow, pressure, motor power, Revolutions Per Minute), product number, manufacturing date, and so on, which is convenient for users to check at any time
3) Small equipment adopts the type of export wood packaging and large equipment, and the steel frame transports large cargo transportation.
4) All equipment is waterproof and rainproof.
5), Random files are placed in a moisture-proof packaging bag and are transported together with the equipment.
6) Appearance of all packaging is waterproof, moisture-proof, clean, and durable.
7) The appearance of the packaging is marked with product mark, hoisting mark, weight, etc.
8) After the equipment is packaged, they are loaded into a container or frame and transported by car to the port (train station).
9) The equipment adopts a split structure, and the outer dimensions of the packaging of the largest goods fully meet the relevant requirements of road transport and the sea.
Company Profile
Zibo Hengding Fan Co., Ltd. Is located in Industrial Park, Beijiao Town, Zhoucun District, Zibo City, Shandong Province, China. The company covers an area of 12,000 square meters and a construction area of 8,000 square meters. The company has total assets of 27 million RMB and 186 employees, 46 engineers, and technicians. It has passed ISO9001 quality management system certification and has maintained long-term technical cooperation relationships with many colleges and universities, such as Xi'an Jiaotong University, Tianjin Nankai University, and so on. Now, it has developed into a modern ventilation equipment manufacturing enterprise with first-class testing and producing equipment, high-quality and excellent production molds, strong scientific research and development strength, a strict quality management system, and gradually perfected development. The company has 15 years of production experience, with an annual output of 5,000 sets of ventilators.
With the market demand as the development direction, the company has always adhered to independent R&D and continuous innovation. Now it has developed into a modern environmental protection, and ventilation equipment enterprise, which mainly consists of mine fans, coal mine ventilators, and centrifugal ventilators. There are more than 50 series of ventilator products with more than 600 specification models, widely used in many industries, such as mines, coal mines, oil fields, chemical industry, kilns, metallurgy, boiler, textile and building materials, etc. The company's products are sold continuously with reliability in 29 provinces, cities, and autonomous regions of China, as well as Vietnam, Indonesia, Russia, Serbia, Pakistan, Kazakhstan, Tajikistan, Iraq, Saudi Arabia, and other countries.
As a manufacturer specializing in ventilation equipment, it is committed to providing superior quality products with advanced technology to customers. We will continue to make new contributions to the development of the ventilator industry based on the management philosophy of "Peng Fei''!
As a manufacturer specializing in ventilation equipment, it is committed to providing superior quality products with advanced technology to customers. We will continue to make new contributions to the development of the ventilator industry based on the management philosophy of "responsibility, teamwork, efficiency and innovation" and the enterprise spirit of "Faith determines height and quality creates brilliance".
We are willing to cooperate with all the new and old customers to create brilliance with first-class quality, reasonable prices, and a perfect service system.
General Manager Wang Baiqing warmly welcomes friends from all walks of life to visit our company for inspection and guidance.
Tel: 86-13806434669 +8615653306160
Our Advantages
Strict quality standards, precision machining, and other spare parts and design maintain product stability, strictly select product parts suppliers, and perfect after-sales service system to allow customers to enjoy a new experience
Our company has introduced the latest research results of the Chinese Academy of Sciences, C4-II ternary flow wing twisted blades, which have high aerodynamic efficiency.
The surface of the ventilator impeller blade is sprayed with advanced super-resistant (CN) metal material to form a wear-resistant, anti-corrosion protection layer on the surface of the blade. The wear resistance of the blade surface is 10 to 50 times higher than that of the ordinary carbon steel material, thereby greatly prolonging the service life of the blade.
After we have absorbed the advantages of many domestic blade structures, based on the optimal control theory of concentrated parameters and distributed parameters, adopting the advanced ternary flow theory of impeller machinery and perfect CAD design technology, through multi-parameter control by blade bending amount, this blade is a high-performance fan blade. It ensures that the ventilator is operating in a wide and efficient area on the premise of meeting the wind volume and wind pressure.
Our company adopts computer simulation calculation and quasi-ternary flow theory, we correct the blade shape and calculate coordinate parameters of its shape, then make the core mold and the external pressure mold of the blade, and the blades are formed by hot pressing. According to a large number of experiments, the tilting blade has a larger lift-to-drag ratio than the original organic blade type and is the best choice for the airfoil blade.
The blades are welded with high-strength carbon steel material. The petiole is treated with high-quality carbon steel. So that the blade maintains the strength and rigidity of the steel blade when ensuring the corrosion resistance and wear resistance of the blade. Moreover, it effectively protects the blade from corrosion resistance and wear resistance in a humid air environment, and improves the operating life of the ventilator.
The surface of the blade is coated with a super-resistant (CN) metal material coating, which not only maintains the strength and rigidity of the high-quality carbon steel blade, but also effectively protects the blade from corrosion resistance and wear resistance in a humid air environment, and improves the operating life of the ventilator.
The petiole is forged and made of high-quality medium carbon steel, and the tempering heat treatment is performed. The root has enough transition arc to eliminate stress concentration, through reasonable and correct force analysis and calculation, the strength, and safety factor of the most dangerous section of the blade root is more than 6 times. And carry out 100% X-ray non-destructive testing for welding seams of the blade root section and the blade, and all the defects were eliminated. Therefore, the impeller has a high degree of operational safety. Since the supply of the ventilator produced by our company, there has never been an accident of the petiole breaking and flying blades.
The impeller hub is made of high-quality steel and then tempered to process heat treatment. The surface of the hub is processed into a spherical shape, the petiole hole is placed at the thickest part of the center of the rim, which reduces the friction loss of the wind flow and ensures that the force-bearing section of the hub has sufficient tensile strength and rigidity. The welded joints of the hub all adopt groove welding and carry out 100% X-ray non-destructive testing for welding seam, which ensures the safe operation of the impeller.
After the blade is formed, first sandblasting is performed to remove dirt on the surface of the blade such as welding slag and oxide layer, to show the original color of the metal; Then, using the latest international inverter pulse arc power supply and high-speed arc spray gun to paint the super-resistant (CN) metal material on the surface of the blade, to form a wear-resistant anti-corrosion protection layer on the surface of the blade. Compared with the traditional arc spraying equipment and spraying process, the coating is denser, the ultra-resistant (CN) metal material has higher bonding strength with the blade's basic body, and the service life is longer.
Quality assurance measures:
In long-term production management, our company has formed a set of standardized process control measures and control points, which can provide users with high-quality products in all directions. Our company has a good reputation and is an enterprise that users can absolutely trust.
Our company has obtained the IS09001 certification from the International Organization for Standardization (see Enterprise Qualification Materials for details). We strictly standardize the operation process and control points of product manufacturing
After Sales Service
When the equipment of the buyer is installed, our company is responsible for on-site installation guidance, personnel training and commissioning of test-drive, The separately purchased fan accessories can be used for telephone connection guidance and debugging
Our company guarantees that the structural safety, aerodynamic performance, running noise, and appearance, quality of the supplied ventilators can be checked and accepted by relevant departments.
The buyer has the right to carry out irregular inspections on the whole machine equipment manufactured by our company to ensure provide convenience for the buyer's supervisory personnel;
Within the specified warranty period, any damage and malfunction caused by defects in product design, process or materials shall be the responsibility of our company. Our company guarantees to reply within 4 hours after receiving the buyer's notice, arriving to solve the problem within 48 hours. We will follow the principle that service work does not stop if the problem is not solved. The buyer may retain the claim for damages caused by manufacturing quality problems;
The quality assurance period for the supplied ventilator equipment, except for special provisions, is 12 months from the final acceptance of the ventilator; The warranty period for the individual parts of the fan is 6 months.
Before the expiration of the warranty period, if a problem with ventilator equipment occurs due to the manufacturing quality of our company, our company is responsible for free repair and replacement; if the problem is caused by the buyer, our company will also repair and replace it in time, and only charge its cost. ;
If out of our warranty period, our company also provides spare parts to the buyer at the most favorable price, guarantees to provide technical services for the equipment sold timely and with high quality, and the after-sales technical service is free for life, guarantees to arrive at the buyer's site for repair and technical guidance
Q. What information should I provide when inquiring?
A: Fan name/model, KW, Air pressure, Flow rate Air Volume, and temperature
Q. What is your warranty?
A. Our warranty is 18 months after receiving the fans. During the warranty period, replace the damaged parts free of charge. Out warranty period, to provide timely, high-quality technical services and price concessions spare parts to ensure.
continuous safe and high-quality equipment operation.
Q. How does your factory control product quality?
A. We have a quality inspection department. All fans are running more than 3 hours before delivery to test the quality. If there is a quality problem, we will produce a new one.
Q. What are your terms of payment?
A. TT 40% AS THE ADVANCE PAYMENT AND TT 60% AFTER INSPECTION BEFORE SHIPPING.
B. 100% IRREVOCABLE L/C AT STGHT.
Q. What products do you produce?
A. Centrifugal fan, tunnel fan, axial fan, jet fan, mining fan, exhaust fan,anti-corrosion blower, high-pressure blower, explosion proof fan, etc, welcome to contact us to learn more details.
Q. Where is your factory? Can I visit your factory?
A. Zibo Hengding Fan Co., Ltd. Is located in Industrial Park, Beijiao Town, Zhoucun District, Zibo City, Shandong Province, China.
Q. How long will it take to ship after the order?
A. 10-15 Days if you need it urgently, we can discuss it for shorting time.
Q. Is the product customizable?
A. Various types can be customizable.
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