Compressor BLOG

Select Replacement AC Portable Compressor

admin — Tue, 24 Apr 2012 01:44:56 +0000

An industrial air Portable Compressor can force air through coolant and heating systems on a large scale. This makes the device ideal for massive air conditioning systems through which air must be moved over long distances. The compressor is typically located in a basement or side building and is connected to the air conditioning system using a series of ducts or pipes.
1 Find out if your vehicle uses R12 or R134a before searching for an AC compressor. Most vehicles made during the early 1990s and afterward use R134a as an alternative to the older and less environmentally friendly R12. The mineral oil used in R12 is not compatible with the oil used with R134a, making a direct mix or swap without a complete evacuation a potentially destructive proposition.
2 Consult an automotive parts database to determine the exact AC Low Pressure Compressor model needed for your vehicle. In many cases, a good database from a well-known automotive parts chain can tell you exactly what type of compressor your vehicle needs. Many vehicles require a certain type of compressor that can handle the higher operating pressures of R134a. Older vehicles with lightweight compressors designed for R12 may have to be replaced with heavier units that can handle R134a.
3 Decide if you want to go with a new, refurbished or used AC compressor. The best compressor to use is a brand-new or re-manufactured unit that is manufactured by an original equipment manufacturer (OEM) for your vehicle. There are also non-OEM units available at a lower price, but the quality and longevity may not be as good. A used AC compressor from a junkyard may be fraught with oil contamination, requiring a rebuild that may cost significantly more than a new or re-manufactured unit.
The article comes from Refrigeration Compressor.

Components Of A Reciprocating Air Reciprocating Compressor

admin — Wed, 18 Apr 2012 08:28:09 +0000

A Reciprocating Compressor increases the pressure of a gas. It reduces the volume of the gas and increases its density without turning that gas into a liquid. Compressors can do this in a number of ways. However, the commonality between all compressors is the fact that they all use some sort of fuel, such as gasoline or electricity, to power whatever compression method they use. Also, because the compressor increases the pressure on the gas, it increases the temperature of the gas. Many other types of compressors are used for various chemicals and fuels that require compression.Frame
The reciprocating air compressor’s most obvious component is its frame, also called its crankcase. Usually, this component is shaped like either a square or a rectangle. The main function of the frame is to provide support for the crankshaft.
Piston
The piston is one of the most important components of a reciprocating air R134a Compressor. The piston is what actually compresses the air contained within the piston. Most often, a reciprocating compressor will have pistons made out of aluminum alloy. However, if the model of reciprocating compressor uses non-lubricated pistons, they will most commonly be made out of cast iron.
Compression Rings
The compression rings help the pistons to do their work. They function as seals against the pressure of the air as the piston compresses it. The compression rings fit onto several grooves cut into the piston. The number of compression rings will depend upon the diameter of the piston as well as the pressure present in the compressor.
Oil Scrapper Rings
Oil scrapper rings are only present in certain types of air compressors. Splash-lubricated oil compressors usually have scrapper rings. These rings are used to direct the oil caught by the compression rings toward the crankcase.
Crank Shaft
The crank shaft is the component that actually motivates the reciprocating compressor. The crank shaft is usually made from iron with several other sub-components such as crank pins holding the pieces of the shaft together, and a flywheel on the end of the shaft closest to the crank.
Cylinder Head
Every reciprocating compressor has a cylinder head, which is usually made from cast iron. Sometimes cylinder heads are referred to as simply cylinders. The cylinders are what the air flows through. They are designed to allow as streamlined a passage of air as possible, so that as little of the pressure generated from its pistons is exhausted. Cylinders fasten to the body of the compressor as tightly as possible, which also helps minimize pressure loss.
The article comes from Refrigeration Compressor.

My Freezer 12V DC Compressor Will Not Stay On

admin — Wed, 11 Apr 2012 00:50:01 +0000

12V DC Compressor, one of the four essential components needed to produce refrigeration in the freezer, is an electro-mechanical device that employs an electric motor to drive a mechanical pump. When the compressor malfunctions, it can be due to a mechanical or electrical problem. The motor might be working but the compressor might fail to pump because of defective valves, or the valves might be good but the motor might fail to run because of defective windings. If the windings are shorted or open, the compressor will not work.
Power
The most obvious problem, and easiest to fix, is when the freezer cord has become unplugged. Even though the possibility seems ludicrous — after all, no one’s been back there — it’s still worth taking a look because the compressor will not run without electricity. If it’s still firmly plugged in, find the main breaker box and verify that a circuit has not been overloaded and tripped a switch there. After confirming that the appliance is indeed getting power, it’s time to look inside.
Thermostat
Freezers come with an adjustable thermostat inside the cooling area or on the outside of the unit. If the thermostat is set too high, the AC Refrigeration Compressor won’t stay on because it won’t detect that the temperature needs to come down. Maybe the setting was inadvertently changed when someone tossed a gallon of ice cream inside. If the thermostat setting appears normal, it’s time to check the compressor itself.
Compressor
The compressor is the football-sized lump of metal on the back, or sometimes underneath, your freezer. It should be easily recognizable and accessed. As a mechanical device, it is quite likely to become worn out or overheat and stop working or work sporadically. The tricky part is that a failure of other mechanical parts in the system, such as the evaporator or condenser, can show up as compressor problems. Something as simple as dirty condenser coils can cause the compressor to overheat and run poorly.
Considerations
If you determine that the compressor is the problem, there’s a good chance that repairs would cost more than the appliance is worth, and you might be better advised to buy a new freezer. For the price of a service call, you can have a repair technician confirm whether or not the compressor is the culprit. Maybe you’ll get lucky and find the problem is unrelated and easily remedied. Then again, you might learn it’s time to take a trip to the local appliance store.
The article comes from Refrigeration Compressor.

Mini Air Compressor: Simple Tips

admin — Tue, 27 Mar 2012 03:24:06 +0000

Mini Air Compressor have been around for actually thousands of years. Now granted the devices the ancients used for compressing air bear little resemblance to the modern air compressor. Nevertheless, the essential principle is similar and without the primitive air compressors, civilization wouldn’t have advanced as fast it has. One of the major uses for compressed air was to increase the combustion in a furnace. The operator of a forge would use a bellows to blast compressed air into the furnace to stoke up the heat. This allowed historic man to supply stronger and better metals for tools and weapons. Most individuals right this moment would not equate a bellows as an air compressor, however that’s exactly what it is. The blacksmith would pull aside the handles on the bellows and a examine valve would enable fresh air to hurry into the accordion like chamber. Then using muscular tissues as the power supply, the blacksmith would squeeze the handles together and the compressed air would shoot out the becoming on the end. Using this course of it grew to become attainable to create a hearth hot sufficient to smelt ores of copper, tin, lead and iron. Bellows are nonetheless used in the present day in a wide range of applications. The organ at your local church is probable powered by a bellows that’s virtually similar to at least one a thousand years ago. They even pop up in medical functions similar to respiratory machines in operation rooms.
Air compressors are very useful devices used to power pneumatic tools like nailers or sanders. If you are planning to buy one, you need to know a bit about it to arrive at a good decision as to which one to really buy. But with all the ones out in the market, it’s easy to get frustrated and end up buying the first one you get your hands in to only to find out that it wasn’t the one you need.
To help you in this delicate task of shopping for an air Compressor For Car, here are a few very helpful tips that may just solve the problem.
How does one apply the use of a compressor?
Of course one does not simply go out to buy an air compressor for nothing. You should be clear as to what use or purpose you want your air compressor to serve. This is one factor that needs to be taken in to account.
Do you need to use it for high pressure devices?
Do you need it just for home use such as small tools like nailers or small air brushes? What you are intending to use it on is one point consideration that should be on top of your list when planning on buying one.
Minimum requirements
Any tool that you want to use with the air compressor has a specific minimum operating requirement of CFM (Cumbic Feet Per Minute). Think of it this way, the more pneumatic equipment you want to use with the compressor has a certain minimum CFM to function properly, which means your compressor should at least have that much power. If you are planning to use multiple tools with it at once, compute the minimum CFM by adding all the minimum CFM of each tool and add 25% for leaks.
Going mobile or staying put?
Some compressors are small enough to be considered portable ones. These are handy if you want to use it around the house or probably bring it with you and use it someplace else. If you’re thinking of using this on a construction site where you will require it for the use of multiple pneumatic tools, you might as well go for the big ones that sits somewhere it is accessible to all the tools that you are going to use it with.
How much voltage does the compressor require?
You need to know the correct electrical requirements of a compressor before buying one. They usually come in the 115v single phase and 230v three phase.
The article comes from Refrigeration Compressor.

Tes Fridge Compressor From Reciprocating Compressor Manufacturer

admin — Mon, 19 Mar 2012 05:36:00 +0000

A Compressor Fridge is a valuable appliance that can be discovered in almost every house. Although these devices seem sturdy and sturdy, they can frequently break down. This is since there are numerous parts that all function with each other to maintain a fridge operating, so when one of these elements break down, it will have an effect on the complete machine. Correcting refrigerators can be an expensive method, but it will be considerably less expensive if you find out how to do it yourself.for example,the Fridge Compressor.
1 Unplug the fridge from the wall.
2 Pull the refrigerator out so you can access the back.
3 Locate the large, metal compressor unit at the bottom of the fridge.
4 Remove the cover of the compressor motor from Reciprocating Compressor Manufacturer by pulling out on it.
5 Clamp two alligator clip jumper wires to each end of a 20,000 ohm wire wound resister. Clip each wire to a separate screwdriver. Hold the screwdrivers from the insulated ends and touch the metal of the screwdriver to each terminal of the capacitor. This removes any charge from the fridge.
6 Pull straight out on the compressor relay, which has exposed copper wires on it. Examine the copper for signs of corrosion. Replace it if corroded.
7 Set a multitester, a small device used to test voltage in electrical devices, to the X1 setting. Touch one probe to one of the exposed terminals in the compressor, exposed after the removal of the relay. Touch the other probe to any of the other two terminals. Your multitester should read zero ohms. Move the probes around to opposite pairs. If any have a reading other than zero, the unit is faulty.
The article comes from China Compressor.

Why Your Low Price Compressor Be Bad

admin — Tue, 13 Mar 2012 02:58:51 +0000

The Low Price Compressor of a refrigerator is mostly likely the most crucial part of the refrigerator. In all reality, all the parts in a refrigerator are very significant. All the same, the Refrigerator Compressor is very significant when it comes to actually providing the cooling part of the refrigeration process. How it operates is that the compressor takes the refrigerant gas and then compresses it. This results to a spike in the pressure of the refrigerant and the temperature of the refrigerator. In the end, this will assist in the dissipation of heat. This ultimately results in the cooling of the system.
1 Remove some recently added items if your compressor runs and does not turn off. Overloaded refrigerators, or refrigerators that have just been filled with an abundance of warm items, may struggle to cool down. The longer-than-usual cooling process will require your compressor to run continuously until the job is done. By removing some of the items in your fridge, you lighten the load and shorten the compressor run time.
2 Inspect the air filter connected to your condenser. This filter removes dust and debris from air entering your condenser. If the filter is clogged, there will not be sufficient air reaching your condenser, and your compressor will run overtime to make up for it. The condenser may be located at the top or bottom, front or rear of your refrigerator, but is usually found behind a metal grill . Use your vacuum with brush attachment to clean away any dust or debris from the filter and the grill.
3 Check your home circuit breakers and fuses if your Low Noise Compressor ceases to work altogether. Check that power is still being delivered to the refrigeration unit. If power is being delivered, and the compressor still fails to work, call a licensed refrigeration repair person to examine and repair the faulty compressor motor.
4 Check that all the refrigerator doors and drawers are properly closed and that the door liners create a tight seal around each opening if your compressor runs more than usual. Cold air leaking out, or warm air leaking in, can place more load on your compressor than normal and result in extended run times.
5 Move your refrigerator away from any walls or obstacles, and inspect the rear of the unit if you hear unusual sounds coming from behind or beneath the machine. If the noise you hear is originating from the rear of the fridge, the problem is likely the compressor. If your compressor is making strange or loud noises like rattling, call a licensed refrigerator repair person to perform the repair or replacement.
The article comes from China Compressor.

Hermetic Compressor Uses

admin — Tue, 06 Mar 2012 02:33:03 +0000

A Hermetic Compressor is unique in its design because it has the motor and compressor built into one assembly shell. The motor activates the compressor to pressurize refrigerant within the compressor body, resulting in cooling characteristics for various appliances.Hermetic compressors can be found in other appliances too, such as freezers and air conditioners. They are specifically designed to be placed in appliances that do not get maintenance for the refrigerant or mechanical bodies, which are considered to be unserviceable due to the sealed body.
Air Conditioner
Hermetic compressors are the component in air conditioners that remove the heated vapor refrigerant from the evaporator by compressing the vapor into a smaller volume at high pressure. The type of compressor (reciprocating, scroll, screw, rotary or centrifugal) determines the method of compression. In a reciprocating compressor, the upward and downward motion of the compressor’s piston condenses the vapor. Scroll compression pushes the pockets of refrigerant along the length of both scrolls until they’re fully compressed at the center of the scrolls. Revolving rotors contained within a cylinder reduce the vapor’s volume inside a screw compressor. Rotary compression uses spinning blades to compress the vapor into a high-pressure gas. Centrifugal compressors, designed for large-capacity refrigeration, use an impeller that spins rapidly within its housing and forces the gas to gain velocity, which causes compression.
Fuel Gas Booster
Fuel gas booster systems use hermetic compressors. Micro-turbines, dual fuel diesel generator sets and fuel cells all require hermetic compressors as a part of their design. The processes in a fuel gas booster system alter the compression of a pipeline-quality natural gas from atmospheric pressures to that of 6- or 8-bar gauge. Gas enters the Ice maker Compressor via the low-pressure switch and the check valve after first passing through the inlet connection and inlet filter. A variable-speed drive controls the compressor’s speed so that the right amount of fuel is delivered into the system at the preferred delivery pressure. A pressure transducer provides the feedback signal to the variable-speed drive at the outlet of the system.
Vapor Recovery
Casing gas (a wet natural gas) is present in oil well production. The Kyoto Protocol deemed the previously used method of venting the gas on site as an environment hazard, which prompted attempts to find alternative methods of removing the gas. Hermetic compressor systems have the ability to deal with both the low hydrogen sulfide content of the gas and the water saturation of the gas vapor. The compressor has the ability to convert gas pressures anywhere from 0.5 to 3- or 4-bar absolute to a final pressure of 7-bar gauge. The advantage of using a hermetic compressor in this type of situation is the compressor’s ability to allow both sub-atmospheric and positive pressure operations without air leaking in or gas leaking out.
The article comes from China Compressor.

Freezer R134a DC Compressor Noise

admin — Mon, 27 Feb 2012 05:09:09 +0000

Precisely the refrigerator is made up of the Freezer Compressor, the pipes as heat exchanging unit both from inside and outside, the refrigerant and the expansion valve. If you ought to understand the working mechanism of the freezer compressor, you need to know about the refrigerant first. The refrigerant is primarily the liquid which undergoes evaporation for cooling the temperature inside the refrigerator. Pure ammonia is one form of refrigerant which needs just 32 degrees Celsius to evaporate.
Thermostat Malfunction
If your compressor emits a constant hum, this is usually because it is running non-stop. The thermostat in your freezer switches the compressor on and off. When the thermostat senses the internal temperature is lower than the temperature at which it is set, it will shut the compressor off. If the thermostat does not do this, it may be malfunctioning. Adjust the thermostat to a lower temperature to see if the compressor shuts off. If it does, it may have been set too high originally. If this does not shut the compressor off, you may need to replace the freezer’s thermostat.
Door Gasket
The gasket around your freezer door seals the cool air inside. If the gasket is damaged, causing a leak of the cold air, your compressor must run more frequently to maintain the interior temperature since this loss will cause the interior to become warmer. Put a piece of paper between the gasket and the freezer frame and close the door. If you can easily pull the paper out, the door gasket needs to be replaced.
Freezer Position
Freezers with compressors on the outside back require enough clearance to prevent the unit from touching walls or cabinets. If the R134a DC Compressor is touching another surface, it can cause vibrations and loud noises as it switches on. Move your freezer so that the compressor is not touching any other surface. If the noise continues, adjust the leveling feet at the bottom of the freezer unit until it is level.
Refrigerant Leak
Compressor noise can sometimes result if you have refrigerant leaking into the sealed system of your freezer. If the noise is not caused by any other component and the thermostat is working properly, contact an EPA-certified technician to inspect your freezer for a refrigerant leak. In the United States, only an EPA-certified technician can legally repair a sealed system, and doing so yourself may void the warranty on your freezer.
Other Components
The freezer’s evaporator fan is located on the back of your freezer, and may be positioned at the top, bottom or center. When the fan makes noise, it can sound like it is coming from the compressor. Open the freezer door and press the door switch. If the noise is louder when you hold the switch while the door is open, the noise may be coming from your evaporator fan, not your compressor. The fan may make noise if the blades are dirty. If cleaning the blades does not stop the noise, the fan needs to be replaced.
The article comes from Refrigeration Compressor.

Refrigerator Hermetic Compressor Problems

admin — Tue, 21 Feb 2012 02:20:59 +0000

A refrigerator compressor is the center of the refrigeration cycle. It works as a pump to control the circulation of the refrigerant, and it adds pressure to the refrigerant, heating it up. The Hermetic Compressor also draws vapor away from the evaporator to maintain a lower pressure and lower temperature before sending it to the condenser.
The compressor is the part of the refrigerator that maintains the thermostat temperature by circulating enough coolant to maintain the pre-determined temperature. It should always be running when the unit is cooling the refrigerator to the desired temperature set by the thermostat. The compressor typically produces a high-pitched hum or a pulsating sound. The compressor on a Frigidaire refrigerator is located in the back of the refrigerator, near the bottom of the appliance. If your Ice maker Compressor is not making any noise, the problem could be the compressor or other components of the refrigerator that deal directly with the compressor: the thermostat, the relay, the overload switch, the capacitor, the defrost timer or the condenser fan motor. The compressor will not run if the freezer control is set to “Off” or “Zero.”
A compressor can become overheated if the condenser coils are dirty. Locate the black and radiator-like coils at the back of your refrigerator and clean off the coils using a vacuum cleaner. Your refrigerator may be in the defrost cycle, which is a cycle that does not utilize the compressor. You may want to consider purchasing a new refrigerator rather than investing in a new compressor in an old unit. Prices for a new compressor typically begin at $250. Unless you are a trained professional, do not attempt to replace a compressor by yourself.
The article comes from Refrigeration Compressor.

Hermetic Compressor Work Principle

admin — Tue, 14 Feb 2012 02:05:43 +0000

Reciprocating Compressor is also popular by the name piston compressors. It actually got its other name because of the use of pistons in the process. The latter is driven by another part of the compressor called as the crankshaft. The primary purpose of such industrial products is to deliver high-pressured gases.
The process starts once the gas goes into the suction manifold. From there the gas flows to another part of the compressor – the compression cylinder. This is the same place where the gas is compressed through the use of a piston.
By knowing the process, one will be able to find out why it is called as reciprocating compressors. A clear explanation is the fact that the crankshaft is driven in a reciprocating motion. From the crankshaft, the intake gas is discharged to serve several applications. It is deemed best to understand what these industrial products are by knowing its most common applications.
A reciprocating Hermetic Compressor uses pistons to compress air. The compressor has a similar design to an internal combustion engine; it even looks similar. There is a central crankshaft that drives anywhere from two to six pistons inside cylinders. The crankshaft is generally driven by an external motor. This motor can be electric or internal combustion. However, it determines the total horsepower of the compressor.
As the pistons draw back, gas is injected from an intake valve in the compressor. This gas is injected into the cylinders of the pistons, and is then compressed by the reciprocating action of the pistons. The gas is then discharged either to be used immediately by a pneumatic machine, or stored in compressed air tanks. However, the gas must be stored or used directly from the compressor to prevent it from losing its pressurization.
The article comes from China Compressor.