DK series counter-rotating the main ventilator
DK series counter-rotating main ventilator is specially designed according to the needs of various non-coal mine ventilation, such as metallurgy, nonferrous metals, gold, chemicals, building materials, and nuclear industry, etc., which can be used as a main fan and auxiliary fan. It can be installed on the surface or underground, suitable for the combined operation of multiple fans, which is an ideal machine station ventilator for various machine stations in the ventilation system of the multi-fan series multi-stage machine station. It is also suitable for ventilation in large workshops, tunnels, civil air defense projects, etc.
The features of the DK series counter-rotating the main ventilator
(1) The aerodynamic efficiency is high and the energy-saving effect is extremely significant by using the twisted airfoil blades.
(2) With diverse performances and complete specifications, it can be well-matched with various ventilation networks of various kinds of air resistance and air volume type to maintain long-term and efficient operation.
(3) It is equipped with a steady flow ring device and the characteristic curve does not has a hump. There is no risk of a surge, so it can be operated safely and stably under any resistance state, and it is suitable for the combined operation of multiple fans.
(4) It adopts the structure of a direct connection between the motor and the impeller, so it has good overall stability, as well as can be installed conveniently and maintained easily with low device resistance. Its transmission efficiency of it is higher than that of the belt and long shaft, without transmission failure and broken shaft risk. The mild foundation sinking and slipping will not affect normal operation.
(5) It has a compact structure and good moisture resistance. The main body of the fan is adopted the steel plate and section steel block welding structure. The blade is made of steel plate material, which is hollow. The blade and overall strength are high and the ability to resist downhole blasting waves is strong. It can be installed on the surface or underground, which is especially suitable as a machine station ventilator for the multi-stage station ventilation system.
(6) It can reverse the reverse wind and the wind reversal rate is greater than 60%. It is not necessary to build a reverse wind channel.
(7) The blade installation angle can be adjustable and the working condition of the ventilator can be adjusted at any time according to the changes of the mine.
(8) The amount of civil work is small, so it can save a lot of investment.
(9) The noise is low.
When used as the main fan and the station fan, the DK series counter-rotating main ventilator should be equipped with a special diffuser. The main fan on the surface shall be equipped with a diffuser to convert one part of the dynamic pressure into static pressure and reduce the dynamic pressure, and loss of the outlet, so as to achieve the purpose of energy saving. The ventilator installed in the well shall be equipped with a diffuser, which not only can reduce the local resistance coefficient, but also can reduce the dynamic pressure value of the diffuser outlet, thereby greatly reducing the local resistance of the fan device and saving ventilation power consumption.
All of the DK series counter-rotating main ventilators are equipped with special supporting diffusers. The flange of the diffuser is fixed to the flange of the fan outlet with the bolt.
The motor applied for the DK series counter-rotating main ventilator is usually a Y series three-phase asynchronous motor with a rated voltage of 380V and a protection class of IP54 (ie closed type), which can be fully adapted to the direct drive and installed in the mine to transport the air containing gun smoke, dust and the air with high humidity.
The supporting special protection starter cabinet of the DK series counter-rotating the main ventilator
According to the needs of users, the ventilator of each specification can be supplied with a special protection starter cabinet when it is delivered from the factory. The electronic control device can reliably protect the motor from the faults, such as overload, voltage loss, short circuits, etc. A device that can quickly reverse the motor is set for it. When the ventilator is required to reverse the inverted wind, press the stop button first, and then press the reverse button after the ventilator stops.
The DK series counter-rotating main ventilator is a steel plate welded structure, which cannot be subjected to large impact during transportation to prevent the deformation of the case and the blade to be stuck. Ventilators with a machine number greater than 14 are generally produced in a structure that can be disassembled up and down. When the ventilator is installed in the well if the cross-sectional area of the well is small, the upper and lower parts of the case, wheel hub, motor, etc. Can be disassembled and transported separately. If the cross-sectional area of the well is large, it is better to transport it without disassembling it as much as possible to facilitate the underground installation.
The usage and maintenance of the DK series counter-rotating the main ventilator
(1) The impeller should rotate counterclockwise from the direction of the wind to the ventilator.
(2) The mounting angle of each blade of the impeller must be consistent. When it is necessary to adjust the mounting angle of the blade, remove the end cap of the wheel hub, loosen the sturdy nut of the blade, adjust the blade to the required mounting angle, and then fix the nut. A layer of grease should also be applied to the sturdy nut to facilitate the next adjustment. It should be specially noted that the input power of the ventilator must be adapted to the rated power of the motor after the blade installation angle is adjusted larger, to prevent motor overload.
(3) The blade handle holes on each blade and wheel hub are in a one-to-one fixed relationship. If it is necessary to remove the blade from the hub, it must be marked in advance to "seat by number" when re-installing. If the original positional relationship is disturbed, balance and correction should be performed.
(4) If some blades are damaged, they must be replaced in time. The weight of the new blade shall be consistent with that of the original blade to maintain the balance of the impeller.
(5) This series of ventilators has lower noise and can be put into operation directly. For users with special requirements for noise, a noise reduction device can be set to reduce noise. The pressure loss (resistance) of the noise reduction device should be added to the resistance of the ventilation network.
(6) Each user should regularly inspect, maintain and service the ventilator according to its use conditions of it. To prolong the service life of the ventilator and its components, it is necessary to check the corrosion situation inside the fan, as well as regularly remove the dirt and the rust, and apply anti-rust oil or spray anti-rust paint if necessary. As the ventilator used for the main fan, it shall be operated, maintained, and overhauled by the regulations concerning the operation, maintenance, and overhaul of the main fan. The motor supported in the ventilator shall be operated, maintained, and overhauled by the regulations concerning the operation, maintenance, and overhaul of the motor.
Product Parameters
DK series counter-rotating main ventilator parameter selection table
| Model |
Machine No. |
Air volume (m3/s) |
Full pressure (Pa |
) Motor mod |
el Power (KW) |
DK40-6 |
15 |
18.2-43.6 |
382-1690 |
Y250M-6 |
2×37 |
| 16 |
22.1-52.9 |
435-1923 |
Y280M-6 |
2×55 |
| 17 |
26.5-63.5 |
491-2171 |
Y315S-6 |
2×75 |
| 18 |
31.5-75.4 |
551-2433 |
Y315M-6 |
2×90 |
| 19 |
37.0-88.6 |
614-2711 |
Y315 L2-6 |
2×132 |
| 20 |
43.2-103.4 |
680-3004 |
Y355M1-6 |
2×160 |
| 21 |
50.0-119.7 |
750-3312 |
Y355M3-6 |
2×200 |
DK40-8 |
18 |
23.5-56.1 |
306-1350 |
Y280S-8 |
2×37 |
| 19 |
27.6-66.0 |
341-1504 |
Y315S-8 |
2×55 |
| 20 |
32.2-77.0 |
377-3334 |
T315M-8 |
2×75 |
| 21 |
37.3-89.1 |
416-1838 |
Y315 L1-8 |
2×90 |
| 22 |
42.8-102.5 |
457-2017 |
Y315 L2-8 |
2×110 |
| 23 |
48.9-117.1 |
499-2204 |
Y355 M1-8 |
2×132 |
| 24 |
55.6-133.0 |
543-2400 |
Y355 M2-8 |
2×160 |
| 25 |
62.9-150.4 |
589-2605 |
Y355 L2-8 |
2×200 |
DK45-6 |
12 |
10.7-27.6 |
698-1374 |
Y200 L2-6 |
2×22 |
| 13 |
13.6-35.0 |
819-1613 |
Y250 M-6 |
2×37 |
| 14 |
17.0-43.8 |
950-1871 |
Y280M-6 |
2×55 |
| 15 |
20.9-53.8 |
1091-2148 |
Y315S-6 |
2×75 |
| 16 |
25.4-65.3 |
1241-2444 |
Y315M-6 |
2×90 |
| 17 |
30.4-78.3 |
1400-2759 |
Y315 L2-6 |
2×132 |
| 18 |
36.1-93.5 |
1570-3093 |
Y355 M1-6 |
2×160 |
| 19 |
42.5-109.4 |
1750-3446 |
Y355 M3-6 |
2×200 |
| 20 |
49.5-127.6 |
1939-3819 |
Y355 L2-6 |
2×250 |
| DK45-8 |
16 |
18.9-48.7 |
688-1356 |
Y280S-8 |
2×37 |
| 17 |
22.7-58.4 |
777-1531 |
Y315S-8 |
2×55 |
DK45-8 |
18 |
26.9-69.3 |
871-1716 |
Y315M-8 |
2×75 |
| 19 |
31.6-81.5 |
971-1912 |
Y315 L1-8 |
2×90 |
| 20 |
36.9-95.1 |
1076-2119 |
Y315 L2-8 |
2×110 |
| 21 |
42.7-110.1 |
1186-2336 |
Y355 M2-8 |
2×160 |
| 22 |
49.1-126.6 |
1302-2563 |
Y355L2-8 |
2×200 |
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.
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
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.
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 quality assurance period for the supplied ventilator equipment, except for special provisions, is 18 months from the final acceptance of the ventilator.
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, fan accessories, 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.
https://hengdingfan.en.made-in-china.com/contact-info.html
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