Stainless steel explosion-proof gear pump, KCB gear pump
Contact Info
- North Section of Industrial Road, Yutai County Economic Development Zone,
- 吴经理
- 13012608150
- 15314489@qq.com
I. Overview of 2CY and KCB Gear Oil Pumps
The 2CY and KCB gear-type oil transfer pumps are horizontal rotary pumps with a flow rate range of 0.045-30 m³/h, a pressure range of 0.7-20 MPa, and an operating speed of 1200-4000 r/min. They are widely used in industries such as petroleum, chemical engineering, shipbuilding, electric power, grain and oil processing, food, medical treatment, building materials, and metallurgy. They are suitable for transporting lubricants or heavy oil, diesel, and lubricating oil with a temperature below 180°C and a viscosity of 5-1500 cSt. When equipped with copper gears, they can transport liquids with lower flash points. Stainless steel gear pumps can also be manufactured for transporting beverages and corrosive liquids.
II. Structure of 2CY and KCB Gear Oil Pumps
The 2CY and KCB gear-type oil transfer pumps mainly consist of components such as a pump body, gears, bearing brackets, pressure relief valves, bearings, and sealing devices. They are directly connected to the driving motor via an elastic coupling and installed on a common cast iron base. The pump body, bearing brackets, etc., are made of gray cast iron, and the gears are made of carbon steel; they can also be made of copper or stainless steel according to special user requirements. There is a stuffing box chamber on the bearing bracket, which serves as an axial sealing function. For KCB-300 to 960 type pumps, skeleton sealing devices are adopted (sealing forms can also be replaced according to customer needs, such as mechanical seals). Single-row radial ball bearings are used. For KCB-18.3 to 83.3 type pumps, they are composed of two oil-resistant rubber rings and a spacer ring in between. The sealing degree is adjusted by two nuts on the compression cover, and copper-based powder oil-impregnated bearings are used. In addition, flexible graphite with good elasticity, high and low temperature resistance, stable chemical properties, and self-lubricating properties can be used as stuffing for all pumps in this series. A pressure relief valve is installed inside the pump. When a fault occurs in the pump or the discharge pipeline, or when the discharge valve is accidentally closed, high pressure and high pressure impact will be generated. The pressure relief valve will automatically open to unload part or all of the high-pressure liquid back to the low-pressure chamber, thereby protecting the pump and the pipeline.
III. Working Principle of 2CY and KCB Gear Oil Pumps
This type of pump is equipped with a pair of rotary gears inside the pump body, one driving and one driven. Through the meshing of the two gears, the entire working chamber inside the pump is divided into two independent parts: the suction chamber and the discharge chamber. When the pump operates, the driving gear drives the driven gear to rotate. When the gears separate from meshing on the suction side, a local vacuum is formed, and liquid is sucked in. The sucked liquid fills each tooth groove of the gears and is carried to the discharge side. When the gears enter meshing, the liquid is squeezed out, forming high-pressure liquid that is discharged out of the pump through the pump's discharge port.
IV. Model Parameters of 2CY and KCB Gear Oil Pumps
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