D type 98KPA inlet pressure Multistage Centrifugal Blower for water treatment

Principle of multi-stage centrifugal fan

Centrifugal blower, its principle is to rely on the impeller of the role of the gas to increase the gas pressure, the

motor drives the fan impeller rotates, gases between the impeller spins, and under the action of centrifugal

force throws the gas, gas flow rate increases, the gas kinetic energy is converted to static pressure in the flow

of energy, and then with the fluid pressure, can make static pressure can be converted to velocity, gas

discharge through the vent port.

Equipment organization chart

Performance improvement of multi-stage centrifugal fan

1,lubricating system

It can improve the lubrication condition of the bearing and prolong the service life of the bearing.

2,Linearity of rotor

The efficiency of the multi-stage centrifugal fan is increased by 3% to 5%, and the temperature rise of the

noise and fan is reduced by optimizing the design of the multi-stage centrifugal fan impeller linearitly from

the binary flow to the three-element flow.

The regulating mode of multi-stage centrifugal fan.

1,flux adjustable

The multi-stage centrifugal blower can adjust the flow rate (50%--100%) through the inlet butterfly valve,

and it can also adjust the flow by adjusting the speed of the variable frequency motor, and the range can be

up to 40%, which can effectively save energy.

2,pressure adjustable

The pressure of the multi-stage centrifugal blower can be adjusted by adjusting the speed of the motor.

Equipment piping layout

competitive advantage

The company takes on Keep improving our forever seeking: Satisfy customers our invariable promise as its

tenet and has won high credit from the market. The company successfully got the certificate of high-tech

enterprise.

The honor belongs to the past. We will work harder to design and manufacture more perfect products to

satisfy all the customers around the world and we will make more dedication to our mechanism industry!

B-tohin Machine(Jiangsu) Co., Ltd is a Sino-foreign joint venture which founded in November 1994.

The company is working on producing and selling centrifugal for two decades. During the production, the

company adopts the advanced equipments and technology overseas, and using advanced quality

management type to manage the company. All the products are widely used in environmental protection,

electricity, irrigation works, chemical industry, construction, food supplies, gas transportation and so on.

B-Tohin Machine (Jiangsu) Co., Ltd. is a foreign invested enterprise established in 1994. It is located at Yixing Industrial Park for Environmental Science & Technology, one of State High-Technology Development Zones. With total registered capital of RMB 120 million and total investment of RMB 160 million B-Tohin is engaged in production and sales of HC blower, BK and YU Roots blowers,air compressor blower,screw blower, anti-corrosion and anti-explosion stainless steel Roots blowers, gear speed-up centrifugal blower, multi-stage centrifugal blowers and in the sales of other supporting products for water treatment in environmental protection, such as water pump (YU, WQ submersible pump, YYOW split case pump), mixer, dewatering machine, etc. By the purchase of a new building of 26000 m2 area in Yixing Economic Development Zone in 2015, the expansion of production scale is supported.

B-Tohin’s products have been widely used in various industries, including water treatment, construction material and cement manufacture, chemical industry, electricity, petroleum, steel, metallurgy, mine, food convey lines, etc., enjoying a good reputation among customers both in the overseas and domestic market.

In the company’s Research and Development Center, a technical innovation team composed of professor level Senior Engineers, Doctors, Masters and many undergraduates, is aiming at the service for environmental protection by tracing and developing the products of high level.

B-Tohin has made great investment in introducing CNC, full-automatic digital control lathes, CMM and other advanced equipment to ensure good quality. A complete set of advanced horizontal OKUMA CNC was introduced specially for the fine finish machining of blower cylinders and end-covers; a NC machine was imported for the processing of blower parts; a Taiwan Dahlih-made CNC was equipped for machining the parts of middle and large size blowers; and several back-forth curve machining planers were introduced for solving the problem of shapers’ precision problem. This kind of planer ranks among the advanced level in China which is specially designed for curve machining of blower rotors. In the beginning of 2015, we cooperated with Testing Laboratory of Shenyang Blower Research Institute (Quality Supervision & Inspection Center for Blowers of China Machinery Industry), and a whole set of blower performance test system was designed for us according to the Roots Blower Industry Standard by the Laboratory.

Passed the certification of ISO9001 & ISO 14001:2400, the company has been nominated as “High & New-tech Enterprises of Jiangsu Province” and “Pneumatic Technology Research Center of Jiangsu Province”. In successive seven years, B-Tohin has been honored as “Favorite Brand of Users in Water Treatment Industry” and “Main Enterprise in Chinese Roots Blower Industry” in 2014, it has been awarded the title of “2014 Top 10 Brands in Chinese Water Industry” on website.

Being a member of National Commission for Pneumatic Conveying and National Technical Committee of Standardization of Blower, and one of the sponsors of National Union of Environmental Protection Equipment Brands, B-Tohin Machine has been an excellent and famous enterprise in environmental protection blower industry.

B-Tohin’s tenet of “Eternal pursuit of improving, eternal promise of satisfying customers” and spirit of “Together with Heat” are always kept in every employee’s mind and in every step of company management. All the honors belong to the past only, people of B-Tohin will make every endeavor to design and manufacture more perfect products for contributing more to the related industries both at home and abroad and to our domestic machinery industry.