浦发彩票

Business League Customer Service

Hello, welcome to Tianjin Blower, welcome to consult ...

Mr. Mao: 点击这里给我发消息
loading

Touch screen QR code

Hello, welcome to visit Tianjin Blower Group Co., Ltd.!
13512222201 Company hotline: 13512222201
浦发彩票

Company Hotline:
13512222201

Contact:
Gross
Contact QQ:
Click me to send message
Telephone:
022-26510325
Fax:
022-26543626
Mailbox:
jgjt@vip.126.com
Address:
No. 9, Xishui West Road, Beichen District, Tianjin
Fan_Tian Blower_Tianjin Fan Which is Good

Fan_Tian Blower_Tianjin Fan Which is Good

Tianjin Blower Group Co., Ltd.
  • Business model: production and processing
  • Address: No. 9 Xishui West Road, Beichen District, Tianjin
  • Main: Fans, Blower Fans, Centrifugal Fans
Business Hotline: 13512222201
  • Product Details
  • contact details
    • Product Brand: Tianjin Blower
    • Total Supply: Unlimited
    • Price Description: Negotiated
    • Packing instructions: unlimited
    • Logistics Description: Freight and Logistics
    • Delivery instructions: by order
    • Valid until: long-term validity
    Fan_Jin Blower_Tianjin Fan Which is good:
    Tianjin fan , Tianjin blower , Tianjin fan

    Fan classification

    According to the direction of gas flow, fans can be divided into centrifugal, axial, diagonal and cross flow types.

    When the centrifugal fan is working, the power machine (mainly an electric motor) drives the impeller to rotate in the volute casing, and the air is sucked in from the center of the impeller through the suction port. Due to the dynamic effect of the blades on the gas, the pressure and speed of the gas are increased, and the centrifugal force is thrown along the blade path toward the casing and discharged from the exhaust port. Because the flow of gas in the impeller is mainly in the radial plane, it is also called a radial flow fan.

    Centrifugal fans are mainly composed of impellers and casings. For fan manufacturers, the impellers of small fans are directly mounted on the motor. Large fans are connected to the motor through a coupling or a pulley. Centrifugal fans are generally single-sided air intake, using single-stage impellers; large flow can be double-sided air intake, using two back-to-back impellers, also known as double-suction centrifugal fans.

    The impeller is the main component of the fan. Its geometry, size, number of blades and manufacturing accuracy have a great impact on performance. The impeller must be corrected by static balance or dynamic balance to ensure the fan to rotate smoothly. According to the direction of the blade exit, the impeller is divided into three types: forward, radial and backward. The top of the blade of the forward impeller is inclined toward the direction of rotation of the impeller; the top of the blade of the radial impeller is radial, and it is divided into straight and curved blades; the top of the blade of the backward impeller is inclined in the reverse direction of the impeller rotation.

    The pressure generated by the forward impeller is strong. When the flow rate and the number of revolutions are constant, the required impeller diameter is small, but the efficiency is generally low. The backward impeller, on the other hand, generates a weak pressure, which requires a large impeller diameter and high efficiency ; The radial impeller is somewhere in between. The straight lines of the blades are the simplest, and the fan is the most complicated.

    In order to make the blade surface have a proper speed distribution, curved blades are generally used, such as circular blades of equal thickness. Impellers usually have a cover disc, and the price of a ventilator is to increase the strength of the impeller and reduce gas leakage between the blade and the casing. The blade and cover plate are connected by welding or riveting. The weight of the welding impeller is light and the runner is smooth. The impellers of low and medium pressure small centrifugal fans are also cast with aluminum alloy.

    When the axial flow fan is working, the power machine drives the impeller to rotate in the cylindrical casing, and the gas enters from the current collector, obtains energy through the impeller, increases pressure and speed, and then discharges in the axial direction. There are three types of axial flow fans: vertical, horizontal and inclined. The diameter of the small impeller is only about 100 mm, and the large one can be more than 20 meters.

    Small low-pressure axial-flow fans are composed of impellers, casings, and current collectors, and are usually installed on the walls or ceilings of buildings; large high-pressure axial-flow fans are composed of current collectors, impellers, streamlines, casings, and diffusers And transmission components. The blades are evenly arranged on the hub, and the number is generally 2-24. The more blades, the higher the wind pressure; the blade installation angle is generally 10 ° -45 °. The larger the installation angle, the larger the air volume and wind pressure. The main parts of the axial flow fan are mostly welded or riveted with steel plates.

    An oblique flow fan is also called a mixed flow fan. In this type of fan, the gas enters the impeller in a direction at an angle to the axis, obtains energy in the impeller, and flows out in an oblique direction. The shape of the impeller and casing of the fan is conical. This fan has both centrifugal and axial flow characteristics, and the flow range and efficiency are in between.

    Cross-flow fans are small high-pressure centrifugal fans with forward multi-blade impellers. The gas enters the impeller from one side of the outer edge of the rotor, and then exits from the other side through the interior of the impeller. The gas is subjected to the force of the blade twice in the impeller. Under the same performance conditions, it is small in size and low in speed.

    Compared with other types of low-speed fans, cross-flow fans have higher efficiency. Its axial width can be arbitrarily selected without affecting the flow state of the gas, and the gas still maintains a uniform flow over the entire width of the rotor. Its exit section is narrow and long, suitable for installation in various flat-shaped equipment for cooling or ventilation.


    As an ideal fire-fighting facility, fire-fume exhaust fans have been widely used in high-rise buildings, underground buildings, tunnels, and drying rooms, such as ventilation and high-temperature exhaust. Then maintenance is also very important during use. Today, I will mainly introduce maintenance methods for you:

    1. Disconnect the main power supply, hang the "No Close" sign, and check whether the motor ground wire is good.

    2. Tighten all screws and couplings.

    3. Check whether the insulation resistance of the motor meets the requirements and check the main circuit contacts. If the contact is severely ablated (the contact point is worn down to 1/3 of the original thickness), the contact should be replaced.

    4. Adjust the tightness of the belt, move the wind wheel by hand, and observe whether the rotation is stable.

    5. Check and replace the gaskets and sealing packings between the joint surfaces.

    6. Clean the inside of the motor and wind wheel, filter and case. The paint should be brushed off.

    7. Add lubricating oil to the rotating parts to ensure the flexibility and stability of the coupling and bearing.

    8. Check whether the mechanical opening and closing action of the regulating valve is reliable and flexible, and the opening and closing angle signs are clear.

    9. Manually turn on the machine to check if the indicator lights, voltage and ammeter are working properly, which one is good, whether there is noise in the operation of each part of the fire exhaust fan, and whether the three-phase current value is balanced.

    10. Check whether the components in the control box of each remote point are normal.

    11. Start and stop for three consecutive times, and check whether the remote control is correct and reliable at each point.

    12. Test run the fire-fume exhaust fan for two hours and observe whether the motor bearing temperature and motor temperature rise are normal. Ensure that the fire exhaust fan is operating normally.


    Fan manufacturers, fans, and Jin blowers are provided by Jin Blower Group Co., Ltd. Tianjin Blower Group Co., Ltd. (fuzzlinks.com) has strong strength and reliable reputation, and has accumulated a large number of loyal customers in the fan and exhaust equipment industries in Tianjin and Tianjin. The company's continuous improvement of work attitude and continuous improvement of innovative ideas will lead Jin Blower and you to enter a brilliant future together for a better future!

津鼓风机集团有限责任公司 版权所有 Copyright © 2019 Jin Blower Group Co., Ltd. All rights reserved

电话:022-26510325 传真:022-26543626 Contact: Mr. Mao 13512222201 Phone: 022-26510325 Fax: 022-26543626

网站备案号: 津ICP备19001615号-1 Address: No. 9 Xishui West Road, Beichen District , Tianjin

Main Products: Tianjin Fan, Tianjin Blower, Tianjin Fan

Sitemap

Information detection Business League Certification Report Center Alarm service