What is the air supply device in a pneumatic system?

The air compressed device in a pneumatic system usually consists of three parts:

1. Air pressure generating device.

Air compressor included.

Control devices, local and interstage cooling devices, waste heat ** equipment and suction filters, air storage tanks, pipelines, etc.

2. Compressed air treatment system.

In order to make the compressed air meet the quality requirements of the pneumatic system, the compressed air (coarse gas) is purified in the later stage. The installation includes a gas (oil) water separator, a filter and a dryer.

3. Compressed air distribution system.

This includes gas collectors, branch networks, and valves. Depending on the requirements, it also includes water collection drains in the pipe network, functional filters, etc.

The composition of the pneumatic system includes:

1. Air source device. It is equipment to obtain compressed air, air purification equipment, such as air compressors, air dryers, etc.

2. Bridge infiltration of actuators. The actuator is a device that converts the pressure energy of the gas into mechanical energy, and it is also a device for the energy output of the system, such as cylinders, air motors, etc.

3. a control element. The control element is used to control the pressure, flow rate, flow direction of compressed air and the working program of the system execution element, such as pressure valve, flow valve, flow direction valve and logic element.

4. Auxiliary components. Auxiliary components play an auxiliary role, such as filters, lubricators, mufflers, radiators, coolers, amplifiers and pipe fittings.

The pneumatic system consists of the following four parts.

1. Air source. It includes air compressors, air storage tanks, air purification equipment, and output pipelines. He supplies pneumatic equipment with clean, dry compressed air with a stable pressure and sufficient flow rate, which is the energy source of the pneumatic system.

2. Pneumatic actuators.

It is a mechanical motion device that converts the pressure energy of the gas into mechanical energy and realizes the external work of the pneumatic system. It is the cylinder that does the linear motion, and the air motor that does the oscillating or rotary motion.

3. Pneumatic control components.

It includes power control elements such as pressure, flow, and direction, as well as signal conversion and execution operations such as sensors, logic elements, and servo mechanisms.

Fourth, auxiliary components.

It is an auxiliary device for the purification of compressed air, lubrication of components, connection between components, sound muffling, etc. Such as lubricators, mufflers, pipe joints, air pipes, etc.

A typical pneumatic system consists of the following components:

Air compressor + aftercooler + gas tank + main filter + dryer + triplet + control valve + speed control valve + actuator.

Air compressor: the power source of the pneumatic system.

Aftercooler: Lowers the temperature of the compressed air produced by the air compressor.

Gas tank: voltage stabilization, energy storage.

Main filter: Filters impurities from compressed air.

Dryer: Remove water from compressed air.

Triple parts: further filtration and impurity removal, pressure adjustment at the use end, oil lubrication (not used in oil-free lubrication system).

Control valve: Directional control of compressed air.

Speed control valve: speed control of compressed air.

Actuator: Outputs pressure into mechanical action.

In an air compression device, an air compressor is used to produce compressed air, which is generally driven by an electric motor. Its suction port is fitted with an air filter to reduce the amount of magazine entering the air compressor.

Aftercooler terminology cools the compressed air so that the purified water condenses. Oil-water separator is used to separate and send out cooling water droplets, oil droplets, impurities, etc. The term gas tank stores compressed air, stabilizes the pressure of the compressed air and removes some of the oil and moisture.

The dryer is used to further absorb or remove moisture and oil from the compressed air to make it dry air.

Air source device Compressed air generator and auxiliary device for compressed air storage and purification. It supplies the system with compressed air that meets the required quality requirements.

Actuators, such as cylinders and air motors, that convert gas pressure energy into mechanical energy and complete work actions.

Control elements, components that control gas pressure, flow and direction of movement, such as various valves; Elements that can complete certain logic functions, that is, pneumatic logic elements; Components that sense, convert, and process pneumatic signals, such as pneumatic sensors and signal processing devices.

Pneumatic accessories, auxiliary components in pneumatic systems, such as mufflers, pipes, joints, etc.

The air source regulating device is an accessory, which plays the role of filtration, pressure regulation and oil atomization in the pneumatic system.

Common categories: three-part (water distribution filter, pressure reducing valve, oil lubricator assembly) two-part (water distribution air filter, oil spray device assembly).

1 air compressor, 2 air purifier, 3 degreaser, 4-air tank, 5 air dryer, five major parts.

Glad to answer for you :

The quality standard of compressed air for pneumatic system can refer to the specification JB T 5967-2007 "Quality Grade of Air Medium for Pneumatic Components and Systems", in which the grade division is divided by referring to the standard GB T compressed air.

Most pneumatic systems do not have high requirements for the quality of compressed air, but the requirements for pneumatic compressed air quality for food and beverage processing, painting, photographic film manufacturing systems and not mentioned in Table 5 for pharmaceutical, medical, electronic and other systems are very high, and the requirements for air source systems are also increased.

For the air source system, it is generally composed of an air compressor, an air storage tank, a compressed air purification system, a pipeline system, etc., of which the compressed air purification system is configured in combination with the user's quality requirements for compressed air, and there are conventional devices for removing oil, water, dust (particulate matter) and sterilization. At present, there are many ways to remove water, particulate matter and fungal pollutants on the market, and they are relatively effective, while the treatment of oil pollutants has always been a troublesome problem. Although the activated carbon adsorption method can achieve deep purification, because the adsorption of oil pollutants is a cumulative process, it is easy to achieve adsorption saturation and reduce the purification effect. At present, the catalytic oxidation combustion degreasing method on the market can completely remove oil pollutants in principleHowever, it is still necessary to do practical consultation or test verification for the performance of the actual product.

(1) Compressed air should have a certain pressure and sufficient flow.

2) The compressed air should have a certain degree of cleanliness and dryness.

Therefore, the air source device in the pneumatic system must be provided with some auxiliary equipment for degreasing, water removal, dust removal, and drying the compressed air, improving the compressed air quality, and carrying out air source purification treatment.

The basic composition of the pneumatic system:

The pneumatic circuits are used to drive mechanical devices for a variety of different purposes, and the three most important controls are: the magnitude of the force, the direction of the force, and the speed of movement. The various types of cylinders connected to the production equipment are controlled by pressure control valves, directional control valves and flow control valves, namely:

Pressure control valve – controls the magnitude of the pneumatic output force.

Directional Control Valve – Controls the direction of movement of the cylinder.

Speed Control Valve – Controls the speed of movement of the cylinder.

A pneumatic system typically consists of:

Air source equipment: including air compressor and gas tank.

Service Elements: including aftercooler, filter, dryer and drain.

Pressure control valves: including pressure booster valves, pressure reducing valves, safety suits, sequential valves, pressure proportional valves, and vacuum generators.

Lubrication elements: lubricators, centralized lubrication elements.

Directional control valves: including electromagnetic reversing valves, pneumatic reversing valves, man-controlled reversing valves, machine-controlled reversing valves, one-way valves, shuttle valves.

All kinds of sensors: including magnetic switches, limit switches, pressure switches, pneumatic sensors.

Flow control valves: including speed control valves, buffer valves, and fast exhaust valves.

Pneumatic actuators: cylinders, rotary cylinders, air motors, grippers, vacuum suction cups.

Other auxiliary components: mufflers, fittings and tubing, hydraulic buffers, gas-liquid converters.

A typical pneumatic system is composed of a directional control valve, pneumatic actuators, various pneumatic auxiliary components and air purification components.

Air compressor Dryer (refrigeration dryer) Pneumatic components Solenoid valve (direction control) Actuator.

The pneumatic system is composed of two parts: signal control and pneumatic power, and the signal control part is used to drive the action of Wuxi Smart's precision pressure reducing valve in the pneumatic power part. The pneumatic power part is represented in a loop way to indicate the interrelationship between pneumatic components with different functions.

The source of the pneumatic system contains some auxiliary components such as Wuxi Smart air source processor; The pneumatic control part contains various Wuxi Smart solenoid valves, precision pressure reducing valves, cylinders, etc., which are used to control the flow, pressure and direction of the working medium; The actuator contains a cylinder or a starter motor, which can be selected according to the actual requirements. When analyzing and designing the actual pneumatic system, block diagrams are generally used to show the actual operating status of the equipment. The hollow arrows represent the signal flow, while the solid arrows represent the energy flow.

The sequence of action in a basic pneumatic circuit is generally the commutation and spring return of the control elements, the extension and retraction of the actuators, and the opening and closing of the solenoid valve.