High pressure reciprocating pump

Overview

Both technical innovation and localization studies have been made for Germany URACA, the United States OLLWELL, Japan WOTHINGTON, Italy PERONI Company high-pressure pump products. Our technical experts firstly use variable frequency drives and new combination of compact clip-on high-pressure valve structure 3JA A ammonia pump, 3YA high-pressure liquid ammonia pump in the small urea transformation. This series of products update fertilizer equipment and technology, and undertake a variety of imported and domestic urea plant transformation work. Products have been widely used in the petrochemical industry, and praised by users. The company Update fertilizer industry on imported a ammonia pumps and liquid ammonia pumps the long-term and achieved good operational performance. Horizontal three plunger reciprocating pump single action of high temperature and high pressure has been used in JiuJiang, Nanjing East, Liaoyang, square and other units of the group. 3TC chemical high-pressure reciprocating pump and a reverse osmosis desalination reciprocating pump are the key equipments in engineering. 3TC series high pressure pump are designed on the basis of chemical and reverse osmosis seawater desalination processing engineering requirements. As the three cylinder and five cylinder reciprocating pump series of high-pressure pump, it applies Special stainless steel with corrosion resistance and high temperature resistant .The product design with novel structure, and has advantages of high reliability, high efficiency, stable operation, reliable quality, beautiful appearance, convenient operation and repair, and can meet the petroleum engineering requirements of chemical industry, chemical fertilizer, steel and iron removal, seawater desalination and other.

Structure characteristics

High pressure pump is mainly composed of a liquid cylinder part, a transmission part, a safety valve part, power part and so on. Power end uses crank linkage, and motor output shaft via a belt or gear associated with the power end of the crankshaft, the crankshaft connecting rod drive mechanism to move the crosshead and plunger reciprocates. In the hydraulic end valve opening and closing function, the purpose of suction liquid is achieved. The operation of High pressure pump with three or five cylinder pump structure is more stable, the power end uses a short stroke piston design, can effectively reduce the line speed, reduce wear, improve the service life of wearing parts, at the same time, the overall structure of the pump is more compact and reasonable, while weighs is only two-thirds of its products the same capacity.

3TC type high pressure reciprocating pump adopt the design idea of low line speed, mechanical and electrical integration, lubrication balance type. Mainly has the following features:

1. Splash lubrication or cross head reverse lubrication patent technology structure of the power end is used, the crankshaft using heat-resistant high strength alloy section parts processing, the shaft neck surface hardening process, effectively solves the common reciprocating pump crankshaft grinding problems; on the high temperature type pump power end adopts the circulating water cooling system for cooling lubricating oil;

2. Fluid end using integrated fully symmetrical structure, the plunger seal double oriented modular high-temperature sealing and using low-speed operation is designed to meet requirements of the technical chemical pumps, prolonging life of seals and plunger. Using high-temperature thermal materials for pumping high temperature dielectric materials for power side implementation of temperature isolation, increasing the temperature gradient, so that temperature at power end is

not higher than 90 ℃;

3. Using new combinations of valves, size of hydraulic end is small .volume and operational reliability coefficient increases, improving pump efficiency and service life of the cylinder;

4. Frequency flow regulation system can be used in the field or in the control room (DCS) to adjust to control 10% -100% based on operating conditions to achieve operational flow.

Series of high-pressure pump performance parameters