BK Three-lobe Roots Blower

The BK series of three-lobe Roots blowers with integrated impeller and shaft are mainly used in many industries such as environmental protection, electric power, building materials, and pneumatic conveying.

Features:

• Synchronous gear of helical gear structure adopted for stable transmission
• Compact structure, same air inlet and outlet structure for flexible installation
• Reasonable bearing structure for long service life
• Low noise, small vibration, small size, low energy consumption

Performance Data:

Features:

1. Energy saving and high efficiency: Energy consumption is about 30% lower than traditional Roots blower, about 20% lower than multi-stage centrifugal fan, and about 10% lower than single-stage high-speed blower;
2. Low noise: With self-balancing technology adopted, there’s no friction between bearings, and the vibration value of magnetic suspension bearing is one level smaller than the traditional ones. At the same time, active vibration reduction design is adopted guaranteeing stable blower running and the small vibration of the blower body. The blower noise is less than 80dB.
3. Intelligent control: using PLC+GPRS/3G/4G, friendly interface, easy operation, with remote monitoring, fault diagnosis, surge prevention and other functions. It can monitor the operating status of the blower in real time, and realize the intelligent adjustment of air capacity and air pressure according to the requirements of different working conditions
4. Maintenance-free: magnetic suspension bearing, no contact, no friction, no lubrication; skid-mounted structure, convenient installation. For daily operations, only consumable parts such as filters need to be replaced, which is basically maintenance-free.

Structure and performance characteristics:

Imported Compressor:

Air suspension bearing: no need for lubricating oil, no vibration, semi-permanent life, low noise. The bearing utilizes the surrounding air for lubricating, and can run at higher temperature and higher speed, with the advantages of flexible start-up, low-cost operation and no mechanical friction during operation.

Impeller: made of AL7075 aluminum alloy,? precisely machined by three-dimensional design techniques, the impeller is featured with high strength, high aerodynamic efficiency, and low weariness . Its directly connection to shaft provides high power transmission efficiency.

Motor: high-speed, high efficiency of 95%, precise speed control available, small size, fast speed, air cooling.

Inverter: inverter of famous brands adopted

PLC: The programmable controller adopts well-known brands, of which the solution meets global quality standards.

Performance Parameters:

Airflow: 18.5-256m3/min

Pressure: 40-100Kpa

HC Rotary Blower

HC Rotary blower’s structure is exquisite. It mainly consists of motor, air filter, blower body, air chamber, base (and oil tank) and oil dropping nozzle.

Features:

• Low noise, low energy consumption, stable operation, easy installation
• Resistance to load changes, stable air volume, with air chamber for smooth air release
• Excellent materials, exquisite structure and outstanding performance

Performance Data:

SM series Mixer:

The submersible mixer is one of the essential equipment in sewage treatment process, used in transfer pump pool, flow adjustment tank, sludge storage tank, etc., to effectively prevent sludge accumulation and balance water quality. Its excellent performance can produce strong water flow,? its special energy-saving motor also can save energy consumption greatly. The mixer is suitable for various installation environments and the maintenance cost is low.

CR series Resin Pump:

The NORUS series is a “durable”, “lightweight” and “rust-proof” submersible sewage pump manufactured by combination of “high-performance resin” and “stainless steel. ShinMaywa designed the 1.5kW and 2.2kW water pump of resin materials enabling a wider range of applications. Resin pumps include high-throughput pumps “CR” series, high-efficiency pumps “CRS” series and high-lift “CRC” series, which can be adapted to your selection requirements.

Introduction of Submersible Blower:

The submersible spiral blower RB-H is a vertical submersible roots blower designed and produced for meeting the demands of the water treatment industry. Since it operates in water, blower room is not required. In addition, its small size is easy for installation, other advantages includes small footprint, high efficiency, convenient installation, short construction period, convenient maintenance, etc. It is widely used in building purification tanks, factory drainage, aeration equipment for animal husbandry drainage, oxygen supply for aquariums and fish tanks and for foaming device of swimming pools.

Features:

• Low noise, no mechanical friction during operation, and reasonable impeller profile adopted for reducing noise.
• Small vibration, the optimized design of impeller reduces the axial force so the whole machine runs smoothly.
• No mechanical friction: no need of gear to increase the speed. The blower rotor is supported by a front and a rear bearings. During operation, there is no mechanical friction between any parts except the bearings, so free of noise caused by mechanical friction, and ensuring the service life of the blower main body.
• Convenient adjustment of airflow: the adjustment range of the blower is 100%~50%, and the flow is adjusted by adjusting the butterfly valve at the inlet.
• Oil-free machinery: No oil or gas is generated during the pressurization process, ensuring that the aerator is not easily corroded, and increasing the service life of the aeration system since there’s no problem of oil leakage.
• Water cooling adopted for rear bearing, prolonging the service life of the bearing.
• Rotor made by using advanced technology, promising high strength and long life.

Parameters:

Airflow: 20-400m3/min

Pressure: 30-100Kpa

Configuration Table of FRP fan:

1. Base: Standard shock-absorbing double-layer frame for fan package
2. Shock absorber: spring shock absorber
3. Transmission unit: belt or coupling;
4. Lubrication unit: built-in oil bath type bearing box, Torrington bearing
5. Shell: anti-ultraviolet marine grade coating, glass fiber cloth
6. Impeller material: vinyl resin
7. Bearing: oil seal
8. Motor: well-known domestic brand
9. Impeller balance level: 2.5mm/s level up to ISO1940 standard
10. Vibration of fan unit: 4.5mm/s grade up to ISO2372 standard

The FRP centrifugal fan of B-Tohin Machinery (Jiangsu) Co., Ltd. Is manufactured with high-quality vinyl ester resin and advanced production technology, featured with strong anti-corrosion function. Its compact impeller design structure realized the fan’s high-speed operation. The blades are designed with large airflow, light weight, high energy efficiency and long service life. By replacing the backward production technology of FRP wrapped with iron, it solves the problem of small airflow and easy to fall apart of the ordinary FRP impeller. The impeller can be customized with different quantities from 8 to 16 pieces according to the airflow required by customers.

B-Tohin is a professional manufacturer who can provide full service from FRP fiberglass centrifugal fan design to manufacturing and to installation. The fiberglass fan B-Tohin manufactured is characterized by corrosion resistance, high strength, large airflow, high energy efficiency, easy installation and durability.

The FRP centrifugal fan is manufactured by absorbing foreign advanced technology and considering the domestic use environment, with overall structure optimized, structural strength improved, enabling the easy installation and durability of the fan .

The debugging of FRP centrifugal impeller adopts the dual combination of dynamic balance and static balance, and the dynamic balance reaches the ISO-1940 G2.5 level.

The glass fiber reinforced plastic centrifugal fan adopts a double-layer frame with a high-efficiency shock absorber in the middle, which greatly reduces the vibration of the fan and improves the service life of the fan. The vibration value meets and is better than the ISO-2372 4.5 level.

With advanced foreign technology applied, the FRP centrifugal impeller’s size and angle is optimized, and the one-piece formed FRP centrifugal impeller is more stronger, with the rigidity, applicable pressure and airflow range equal to the steel impeller’s. And the weight is lighter than the steel impeller’s, which improves the energy efficiency of the fan. The shortages of the traditional FRP impeller made through glass steel wrapped with iron is covered.

The impeller shaft disc of the FRP centrifugal fan adopts a split structure, which is fully enclosed and covered. The installation is firm, and it is convenient for disassembling and maintenance.

The FRP centrifugal fan adopts an oil-bath type bearing box to protect the bearing and shaft from acid and alkali gas. Combined with the application of American type pulley and imported belt, the service life is extended and the rate of failure is reduced. Fan motors and bearings of imported or domestic brands are available upon customers’ requests.

An inspection port and a drain hole to facilitate inspection and cleaning of the impeller and avoid impeller fouling is set outside of the fan.

Performance test reports are submitted to certify that qualified products are supplied.

Provide fan maintenance manuals for easy maintenance work, keep maintenance records? for easy handover.

All FRP centrifugal fans of B-Tohin are made to order. According to the needs of customers, every fan is customized to make every customer satisfied.

Compared with the BK blower, water cooling adopted for end cover bearing to increase the blower’s applicable pressure

Adopte Standard horizontal installation type, vertical installation type available if required.

Same as BK blower: integrated impeller and shaft structure, helical gears, imported bearings and oil seals.

Outlet diameter: 65~350mm

Air capacity range: 25~146.88m³/min

Applicable pressure range (discharge rising pressure): 6~1.0kgf/cm²

• Realize two-stage air compressing in one blower main body to achieve higher pressure
• water cooling adopted for housing, end cover bearing for more stable operation
• Compared with the BKD type, size is smaller.
• It runs smoothly and can be used in vehicle-mounted systems.
• Outlet diameter: 65~150mm
• Air capacity range: 2.4~40m3/min
• Applicable pressure range (discharge rising pressure): 1.0~1.5kgf/cm2
• The blower’s housing is divided into upper and lower parts, which are easy for disassembling and convenient for maintenance.
• Higher applicable pressure realized by adopting internal segmented compressing way, no need of middle cooler
• Water cooling adopted for lowering bearing and lubricating oil temperature during operation.
• Double oil tank structure adopted to improve bearing lubrication conditions
• The inside of the blower adopts dry seal for ensuring small internal leakage

B-Tohin is a manufacturer specializing in the production of various types of blowers, with a history of more than 20 years.

GS series single-stage high-speed centrifugal blowers are specially designed for aeration in sewage treatment projects and desulfurization in power plants. And it is also suitable for conveying other non-corrosive gas such as air, nitrogen, nitrogen dioxide and so on.

GS blower is characterized by wide applicability, significant energy-saving effect, small footprint and simple installation, operation and maintenance.

Structure and performance characteristics:

• Stable operation and low vibration
• Remote monitoring via internet can be applied.
• High speed, energy saving
• High degree of automation and high reliability

Application of the unloading valve

This unloading start valve is used in compressed air pipeline systems such as Roots blowers or screw blowers. When the blower starts, the conveyed air flows into the outside through the unloading valve, and the blower starts with a slight load. At the same time, due to the pressure difference between the air in the pipeline and the outside atmosphere, the start valve is slowly closed, allowing the conveying air to flow into the normal working pipeline, realized the micro-load start of the blower or other compressed air supply equipment without the impact on the main body of the equipment, the impact of the driving equipment and the damage to the transmission mechanism caused by the direct load start. It is of pure mechanical structure and is reasonable and ingenious designed for reliable and trouble-free operation.

Features:

• Avoid the trouble caused by the use of bypass, electric valve or actuator which need to be controlled by electrical control equipment.
• System cost is low since there’s no need for bypass, electric valve or actuator and related control equipment.
• After installing a small pressure relief valve as required, it can replace the role of the traditional pressure relief valve and better protect the air source equipment. At the same time, it can be used to maintain a constant pressure better protecting the equipment in the case of harsh starting conditions.
• Easy installation, simple maintenance.

Negative pressure (vacuum) Roots blower is mainly used in pneumatic conveying, food, dust, cement, building materials, metallurgy, petroleum, chemical, photovoltaic, electronics, medicine, plastics, drying and other fields.

• Helical tyep synchronous gear adopted for stable transmission
• Compact structure, same air inlet and outlet structure for flexible installation
• More reasonable bearing structure of long service life
• Low noise, small vibration, small size, low energy consumption