Buy compressor 2ВМ4-20/4 (illiquid)

Part of the compressor includes: compressor, gas coolers, cooling systems, automatic control and protection.

Air compressor – stationary, reciprocating, single stage, reciprocating, water cooled, lubricated cylinders and glands. The compressor includes the following main knots: base, cylinders and electric motor.

The base consists of standard units crank mechanism (crankshaft, connecting rod, crosshead), frames, lubrication of the movement mechanism and lubricator. Frame cast iron, cast, box shape with internal rib strengthening. In the upper part of the frame is provided with tight fitting lids hatches providing access to the details of the movement mechanism. The lower part of the frame serves as a reservoir for oil. For mounting of compressor cylinders to the frame, there are special bosses. In the holes of the transverse ribs is set crosshead cast-iron casings that serve as guides for the crossheads. Crankshaft is steel stamped with the cranks for installation of the connecting rod rests on roller bearings. At one end is mounted the motor rotor and fixed to the shaft end flange is made square hole for turning the compressor shaft with a crank before starting. At the other end of the shaft mounted gear to transmit rotation to the shaft of the oil pump of lubrication unit. The crossheads cast iron or aluminum alloy or stamped, made in concert with the sliders. With the connecting rod connects the crosshead by means of the fingers, which are produced from steel and the Assembly pressed into the crosshead. The steel connecting rods, forged, I-beam section. The connecting rod has a crank head with detachable lid and one-piece crosshead head. Detachable ear crank head with an antifriction layer of an aluminum alloy. Cover crank connecting rod connects with the rod of the connecting rod by two bolts and nuts.

Compressor 2ВМ4-20/4, (2ВМ 4-20/4) double action cylinders of the same diameter. Suction and discharge valves are fixed in the nests of pressure resistant glass and a push bolts or studs with nuts. All seals achieved using paronite gaskets. Pistons – disc, double-acting cast iron, aluminum or steel. Piston rings – cast iron.

The drive is from the single speed induction motor, built into the frame of the compressor.

Lubrication of the compressors is controlled by two independent systems: the low pressure oil supply to the mechanism base and the high pressure oil supplying into the cylinder. In the lubrication system low pressure oil filled in the lower part of the frame through the hatch cover. From there through a mesh strainer gear pump is supplied to the lubrication unit and then into the inner channel of the crankshaft, which has carts of oil on the working surface of the crank journals and connecting rods. In the lubrication system of high pressure oil is poured into the lubricator, where the piston is pumped to the cylinder and evenly distributed on the friction surface.

For lubrication of the movement mechanism can be applied oil brands AND 50A (GOST 20799-75), MC-20 (GOST 21743-76), K3-10 (TU 38.401479-84), IGP-49 (TU 38.101413-90); the cylinders and rod sealing devices – oil K-12 and K-19 (GOST 1861-73), the MS-20. Cooling system – water, is not closed, control valve. The condenser – a cylindrical shell-and-tube apparatus with a longitudinal fin tubes. At the request of the customer the compressor unit can be made with a closed cooling system. Along with the cooling of compressed air removes oil and moisture, what are vlagomaslootdeliteli.

The automation system is designed to control the operation, protection and control parameters. It consists of a number of subsystems and in conjunction with the actuator carries out the abort of the compressor to the stop of the engine when the temperature of the air; when the pressure of oil circulating in the lubrication system of the movement mechanism; when there is an invalid reduction of the cooling water flow; in excess of the above permissible discharge pressure; under short-circuit and damage to the electric drive system and control. Emergency shutdown of the motor is accompanied by a flow of light and sound signals. Automation systems compressors differ depending on the modification, the functionality and circuitry.

The Foundation of the compressor is developed in relation to a particular location.

General view, overall and mounting dimensions of the compressor 2ВМ4-20/4, (2ВМ 4-20/4) is shown in Fig.

The operating conditions of the compressor 2ВМ4-20/4, (2ВМ 4-20/4)

• height above sea level not exceeding 1,000 m;
• maximum temperature of cooling water 25 .With;
• can be operated in any climatic area;
• ex working with explosive environments.
• Installation and operation of compressor units are performed in accordance with "Rules of arrangement and safe operation of stationary compressor units, air ducts and gas pipelines," "Rules for electrical installation" and in accordance with user manual for EP 000-re manufacturer.

The compressor meets the requirements of TU 26-12-804-90.

Allowable number of plant and mechanical impurities in the cooling water should not exceed 40 mg/l, water hardness not more than 7 mEq/l,