air cooler is designed to reduce the temperature of various gases or liquids.These devices are involved mainly in industrial processes.However, in industry as they can be found.When using the machine, much depends on the cooling fluid pressure.The maximum threshold for an average of 16 MPa.In some cases, the devices are used under vacuum.In this residual pressure should not be lower than 650 Pa.Permissible temperature depends on the type of cooling apparatus.
What type are they?
The design of the cooling apparatus is divided into horizontal and vertical.There are zigzag pattern.They can be installed with one or two fans.For cooling viscous substances there is a separate type, which is divided into subtypes (malopotochnye, as well as modular).Compressor cooling devices distinguish with a recirculation system and without it.
cooling devices "AUG"
involved air cooler "AUG" for condensation and lowering the temperature of the vapor and liquid funds.At the same time it is used more often in the petrochemical industry.The design of this device is quite simple.It consists of an electric motor and pipe sections.Additionally, there is a drive for the fan.
to adjust the air flow has blinds.In some models, the flap turns automatically.Whole sections of the machine is provided 3. The diameter of the fan wheel is in the range of 3 m. The power of the electric motor is 37 kW.In some models, this option is 30 kW.The rotational speed of the fan wheel is quite large.With the power of 37 kW is made of more than 300 revolutions per minute.Coefficient is finned tubes 20. In the audio section may be from 4 to 8 rows of tubes.They usually set the cap type.The average length of the pipe section is 4 m.
What is the difference of devices for viscous products?
These devices are subject to special bi-metal pipe.The indicator substance viscosity should be not more than 10 m2 / s.These devices are suitable for most refining companies.Coefficient of finning have decreased.Installed at the air cooler fan is only one.
carrier pipe diameter is 38 mm.The sections are assembled in a special way.It is necessary to drive the fan is in a separate frame.Its wheels thus rotate in the cavity of the collector.As a result, the air passes between the tubes.Components of the cooling unit depends on the manufacturer.If necessary, the device can be set to apply a moisturizer.
blinds, usually run automatically.However, manual butterfly valve manufacturer provided.If we talk about the characteristics, the pressure unit is kept at 37 MPa.Sections of all, there are three.Fan diameter is 2.8 m. Motor power ranges from 20 to 35 kW.The average wheel speed of 400 revolutions per minute.Coefficient of finning tubes 7.8.The audio section may be up to eight tubes.The housing is made of steel "B2".Section set the cap type.Pipes are 4 and 8 m.
description sets a zigzag type "AVZ"
air cooler "AVZ" zigzag type is suitable for cooling gases.Such devices are used only in the petrochemical industry.Their difference is the presence of six sections.They are made of bimetallic pipes.As the name implies, they are in the shape of a zigzag.The angle becomes quite sharp.To fix the sections are special horizontal stops.
Lower platform is quite rugged.Fan drive is mounted on a separate frame.The wheel rotating device in the reservoir.In some cases, such devices can be equipped with a recirculation system.Thus shutters are at the top and in the side portions of the device.In this case, the supercooling is prevented substance.This is especially true in the winter season.Directly fans can also set different.Some manufacturers of composite materials.In this case, they are more durable.
heat exchange area of 2650 to 8480 square meters.m. The pressure is kept at 5 MPa.Fan installed diameter of 5 m. The motor power is around 30 to 70 kW.Total design provides one wheel.Its average rotational speed - 200 rpm.In the middle section consists of four tubes.Blinds can withstand the pressure of only 0.6 MPa.The length of pipes is 4 meters.
devices with two fans
These types of air coolers are used, usually in the related industries.However, they do well with the condensation of vaporous substances.Coolant in the device can also be.There are six tube sections.They are located on the frame in the form of a zigzag.Tubes are mounted in the main bimetal.Horizontal support in this unit provides cooling.The drive wheel is mounted on the frame.Wheels fans located in the cavity of the reservoir.
humidifier is usually included in the package.The calculation of air cooler is made based on the density index.Shutters are provided with manual adjustment.There are panels with a barrier on the side sections.They are located in the lower part of the device.Electric motors are mainly the speed transducer.All this reduces the power consumption of the device.Air tube is adjusted automatically.The angle of the blades varies quite smoothly.The fans are easy maintenance.The characteristics of units with two cooling fans are not too different from other types.
average tube length is 4 m. The sections of the cap set type.Pipe finning ratio ranges from 9 to 20. The fan wheel rotate a maximum speed of 400 revolutions per minute.The power of the electric motor is 37 kW.Wheel diameter is 2.8 m. Operating pressure is at around 6 MPa.Exchange surface 3450 is 11 400 sq.m.
Malopotochny type vehicles "AVM"
"AVM" air coolers are used for cooling liquids.They are most in demand in various industrial plants.Constructions they may be horizontal or vertical type.This section is provided in the device alone.It consists of the finned tubes.The fan has an axial type.He pumped the air fairly quickly.When this flow passes along the tubes.
motors for these models are special.They differ from other devices, explosion-proof.Shutters at the device may be manual or automatic.Warmer air is also provided.Camera recycling system is also present.The supporting structure from the cooling unit is very sturdy.It withstands seismic activity up to nine points.
characteristics of the device "AVM"
heat exchange surface area is 105 375 square meters.m. The pressure is maintained up to 4 MPa.Motor power of 3 kW.Fan wheel average makes about 1500 rpm.The length of a heat exchange tube is 1.5 m. In total there are 8 series section.Finning ratio stands at 20. They are made of steel frame "B1" and "B2".It weighs the air cooler 4200 kg.
cooling device of modular type "ABO"
air cooler "ABO" is used in industrial processes for condensing gases.It is used in the refining and petrochemical industries.The design of the models has a horizontal type.Due to this fan installed in the lower part.In addition, there is a special box on the frame.We need it on the air injection.
The Rolling pipe sections are used.For recirculation fitted blinds.There are also heaters that do not give supercooled substance.In winter, this problem is particularly acute.Modifications of this type of device there is a large set.The average area of heat exchange tubes is 595 to 1565 square meters.m. The maximum available devices in 1795 to 4735 square meters.m. The diameter of the fan wheel is 1.6 m.
section of the machine has one.Power low-speed electric motor can be up to 15 kW.The number of wheels in the device depends on the modification.On average, there is a section of the pipe 6.Wheel of fan per minute makes 700 revolutions.Section length up to 12 m. The heat exchanger air cooler "ABO" has only cell type.
Description of devices with recirculation
Use these devices to reduce the temperature of sulfur-containing gases.However, they are equipped with inlet and outlet manifolds.The most common air coolers can be found in the gas booster compressor stations.They are also actively exploited in gas pipelines.There are single and docked.
In the first embodiment, the device works independently.Connectivity devices are usually connected in series to increase the power.Section they are installed horizontally.They consist of bimetallic tubes.The air is blown by fans.It is installed, typically of the axial type.Located at the bottom of the fan cooling unit on the frame.Next to it there is a low-speed electric motor.
In cold climates, air coolers Gas feel fine.Wheels fans usually are made of composite materials.The frequency converter provides rotation.At the same time power consumption is quite moderate.All this testifies to the efficiency of this type of device.The angle of the blades can be adjusted manually.In general, fans are very easy to maintain.Included with the device can be supplied truck.It is necessary to remove the motor.At the same time to make repairs wheel can also be using it.
What characteristics have machines with recycling?
heat transfer area is 9930 square meters.m. The design pressure equal to 7.5 MPa.The calculation of air cooler is made on the basis of the pressure indicator.Just a phone has 3 sections.The diameter of the fan wheel exactly 5 m. Motor power 37 kW.Middle speed reaches 250 rpm.Coefficient of finning is 20. Welded pipe camera is mounted class St20.The section has 6 pipes.The collector tube and a cooling unit are made of steel.
devices with hood
use this air cooler for condensation of water vapor.Typically, it is an integral part of the turbine unit.It is located on the 6 axial fans.Water vapor enters the reservoir through the pipes directly.In a special chamber it condenses.
Removal takes place by means of steam nozzle.All residues fall into the upper section.It completes the process of condensation.Sometimes sections may peremerzat.To avoid this problem machines have blinds.They are located on all sides.Adjust the valve by hand, of course, possible.The whole device is quite complex and difficult to maintain.
