The air compressor is a device for compression of the gas. The air compressor and water pump similarly configured. Most of the air compressor is a reciprocating piston, rotary blade or rotary screw. Centrifugal compressors are very large applications.
1. Many types of air compressors
type
Air compressor (compressor) is.
1, according to the principle can be divided into three categories: positive displacement, power type (type speed or turbine type), thermal compressor. Compressor Category
2, it can be divided into the lubricating oil-free compressor and oil lubricated air compressor.
3, according to the performance can be divided into: low noise, frequency, explosion-proof air compressor.
4, use can be divided: refrigerator compressor, air conditioner compressors, refrigeration compressors, compressor oil, gas filling stations, drilling machine, pneumatic tools, vehicle braking, with the doors open and close , textile machinery, tire inflation, plastic machinery compressors, mining compressors, marine compressors, medical compressors, paint by sand blasting.
5, it can be divided according to type: fixed, mobile, enclosed.
The volumetric compressor – gas directly dependent changeBody to increase the volume of the gas pressure of the compressor.
The piston type compressor – is a positive displacement compressor, the compression element is a piston, to reciprocate within the piston cylinder air compressor.
The rotary compressor – is a positive displacement compressor, compression is achieved by the forced movement of the rotary member.
The vane compressor – is a rotary variable displacement compressor, which slide axially on the eccentric rotor with radially sliding of cylinder. Trapped air is compressed between the discharge vane.
Liquid – piston compressor – is a rotary positive displacement compressor in which water or other liquid as a piston to compress the gas, then the gas is discharged.
Roots compressor rotor bis – genus rotary positive displacement compressor, in which two intermeshing Roots rotors stopped so that the gas, and the exhaust port to the intake port. No internal compression.
screw compressor – is a rotary positive displacement compressor, in which the two rotors intermesh with helical gears, so that the volume of the two meshing rotors from large to small, so that the gas is compressed and discharged. Screw air compressor screw compression assembly, using the latest manufacturing CNC grinding internal, and with line laser technology to ensure extremely precise manufacturing tolerances. Reliability and performance ensure that operating costs have been very low in the compressor lifetime. Adjust the compressor, the compressor and the integrated desiccant is L / LS series of new products in the compressor.
speed compressor – is a continuous flow rotary compressor in which a high-speed rotating blades to accelerate the gas through it, so that the velocity energy into pressure. This transformation occurs on the part of the rotating blades, it occurs in the fixed portion of the diffuser or reflux baffle.
Centrifugal compressors – a speed type compressor, in which one or more of the rotating impeller (blade side usually) to accelerate the gas. Primary air flow is radial.
axial compressor – a speed type compressor, in which gas is accelerated by the bladed rotor. Primary air flow is axial.
mixed flow compressor – also a speed type compressor. Shaped rotor which combines some characteristics of both centrifugal and axial flow.
injected compressor – gas or steam a high-speed jet of gas sucked away, and then the expansion speed of the mixed gas into a pressure on the pressure.
Permanent Magnet inverter compressor – due to the conversion of a screw compressor using the inverter steplessSpeed characteristics, or by a controller in the inverter PID regulator, can smoothly start; fluctuation of gas consumption is relatively large, and can quickly adjust the response.
monopole compression screw compressor – screw compressor head is composed of a pair consisting of male and female rotors. This model is widely used screw air compressor.
Bipolar compression screw compressor – head is composed of two pairs of male and female rotors, through a compressed gas into the two-stage compression After completion of the high compression ratio, the more power the air compressor and compressing a reduction gear.
bipolar permanent inverter compressor – since 2014 after the development of new energy-saving products, combined with a bipolar permanent conversion and compression technology, with high energy efficiency.
2. The air compressing structure
1 :: oil circulation system
Before starting, first of all start the pump control system, the control system activates the pump to ensure the lubrication of compressor components each good lubrication, the oil pump while the internal control system may be adjusted by the oil pressure and oil temperature control valve built to meet system needs.
2: air circulation passage
When the air compressor (20) operation of the compressor, through the self-cleaning air filter air is sucked through the filter self-cleaning PLC, the automatic adjustment of the air through the inlet guide vanes after entering a compressed, high temperature via a gas after compression, the intercooler and then into the cooling (down water pipe, gas down the outer tube, the water flow requirements for the intercooler 110m / h) after entering the two compression system, in order to avoid gas system was poured into a compression chamber (to avoid starting with pressure) in the exhaust duct of the compressor is attached to a suspended full check valves, compressorsOpen the check valve into the exhaust gases of the exhaust muffler, and after entering a cooler, the two cooler, the exhaust gas then enters the main conduit.
3: water circulation system
of the cooling water of the compressed gas discharged through the cool down a pipe into the compressor intercooler, an intercooler for cooling the exhaust gas re-enters another cooling water passage inlet upper main conduit through two heat exchangers cooling the motor the motor winding, there is the way of the oil cooler for cooling.
4: Distribution System
a high pressure air compressor motor to 2000kW (10kV) using the total pressure starts to indoor AC control cabinet, metal sheathed out switchgear, the switchgear cabinet and may be secured by a Used member out of two parts i.e., to achieve control, protection, monitoring purposes, with the “five anti” function.
5: Screen protection system
is divided into a central signaling device notice signal and two kinds of incident signals. The main task is a distress signal when the circuit breaker tripping accident, can emit sound signals in a timely manner, and respective circuit breaker position signal light flash. The main task of the announcement signals that occur when you run the device anomalies, instantaneous or delayed audible signal, and the light plate shows the contents anomalies.
6: DC power supply system
PZ32 series of automatic maintenance-free lead-acid batteries DC power supply equipment, by the charging device screen, battery and DC feeder panel, has a steady flow automatically, automatic voltage regulator, the automatic voltage regulator and other functions, provides power to the central control system and high voltage screen signal.
7: DTC control system
of the air compressor DTC control panel is the “brain”, the value of the field sensors of various types, the DTC to the final summary screen for displaying various types of operating parameters on the screen DTC control, and monitor compressor operating state of each part, when certain parameters are out of the allowable range, the DTC will issue a corresponding alarm or automatically stop air compressor.
3. The air compressor characteristic features
The compressor is directly driven by a motor to produce rotational movement of the crankshaft, the piston drive rod to reciprocate generated, causing changes in the cylinder volume. Due to changes in pressure in the cylinder, the air cleaner air passing through the intake valve (silencer) into the cylinder during the compression stroke, due to the reduction of the volume of the cylinder, through the action of compressed air exhaust valve, the exhaust pipe, a single into the tank valve (check valve), when the exhaust gas pressure reaches the rated pressure of 0.7MPa and automatic shutdown is controlled by the pressure switch. When the pressure was reduced to tank pressure switch automatically coupled 0.5–0.6MPa start.
and an air compressor to provide air power, the main core of the device is a pneumatic system, bleed air source electromechanical device, which is a device capable of moving the original (typically an electric motor or a diesel engine) of the mechanical energy into a gas pressure , compressed air pressure generating means.
The main purpose air compressor 4
A, the conventional aerodynamic: pneumatic tools, drills, picks, pneumatic wrenches, pneumatic sander
B, Instrumentation and Automatic Control means, such as a machining center tool replacement.
c, vehicle braking, opening and closing doors and windows
d, the air jet loom by compressed air instead of blowing the weft yarn shuttle
e, food, pharmaceutical industry, with compressed air agitationThe slurry
f, large marine diesel start
g, wind tunnel, the tunnel ventilation, metal smelting
h, fracturing
i, the high pressure air blasting mining
j, weapon system, missile, torpedo
k, submarine ups and downs, salvage, offshore oil exploration, hovercraft
l, tire inflation
m, paint
n, blow molding machine
o, air separation
P, industrial control power (driving cylinders, pneumatic components)
Q, the production of high-pressure air for cooling and drying of the workpiece