Bengbu Zhengda Compressor Co., Ltd.

Bengbu Zhengda Compressor Co., Ltd. is a professional company specializing in the production of various types of large, medium and small compressors, with products such as screw series, oil-free lubricated piston series, chemical series, natural gas series, liquefied gas series, medium and high pressure series. Product exhaust capacity of 0.2-40m3/min, exhaust pressure 0.2-35MPa, widely used in urban construction, petrochemical, coal, geology, metallurgy, pharmaceuticals, liquefied gas stations, oil and gas depots and other departments, can be compressed: Air, nitrogen, gas, difluoroethane, carbon dioxide, ethylene, propylene, vinyl chloride, dimethyl ether, natural gas, liquefied gas, mine gas, biogas and other media.

Product models have Z type, V type, VF type, D type four categories, more than 100 varieties, can be independently designed, manufactured, produced according to user requirements, and provide users with quality pre-sale, sale, after-sales service.

A piston compressor is a compressor that relies on the reciprocating motion of the piston to pressurize and deliver gas. It is a positive displacement compressor, also known as "reciprocating piston compressor" or "reciprocating compressor". It is mainly composed of working cavity, transmission parts, fuselage and auxiliary components. The working chamber is directly used to compress the gas and is composed of a cylinder, cylinder liner, valve, packing, piston and piston rod. The piston is driven by the piston rod in the cylinder for reciprocating motion, the volume of the working cavity on both sides of the piston is changed in turn, the volume reduction side of the gas is discharged through the gas valve due to the increase in pressure, the volume increases on the side because the air pressure decreases through the gas valve to absorb the gas, the transmission parts are used to achieve reciprocating motion, there are crankshaft connecting rods, eccentric slides, swash plates, etc., of which the crankshaft connecting rod mechanism is the most common, it is composed of crossheads, connecting rods and crankshafts.

After the motor starts, the crankshaft rotates, and through the transmission of the connecting rod, the piston makes reciprocating motion, and the working volume composed of the cylinder inner wall, the cylinder head and the piston top surface will change periodically. When the piston starts to move from the cylinder head, the working volume in the cylinder gradually increases, at this time, the steam body pushes the intake valve along the intake pipe and enters the cylinder, until the working volume becomes the maximum, and the intake valve is closed; When the piston is in reverse motion, the working volume in the cylinder is reduced, the gas pressure rises, and when the pressure in the cylinder reaches and is slightly higher than the exhaust pressure, the exhaust valve opens and the gas discharges out of the cylinder until the piston moves to the limit position, and the exhaust valve closes. When the piston is inversely kinematic again, the above process is repeated. In short, the crankshaft rotates for one week, the piston reciprocates once, and the process of intake, compression and exhaust is realized successively in the cylinder, that is, a work cycle is completed.

Advantages of piston compressors:

(1) Suitable for a wide range of pressures, piston compressors can be designed as low pressure, medium pressure, high pressure and ultra high pressure, and at the same speed, when the exhaust pressure fluctuates, the exhaust volume of the piston compressor remains basically unchanged.

(2) The compression efficiency is high, and the process of compressing gas in piston compressors is a closed system, and its compression efficiency is high.