How to make a compressor from the refrigerator with your own hands

Do not need to talk about what the compressor is for, because it's so clear. But the self-made compressor from the refrigerator with their own hands can not do everything for everyone. Nevertheless, with patience, the necessary tools and theoretical knowledge, this task can be coped, and quite quickly. Use such equipment can be combined with an airbrush, spray, etc. Tool. Its key features are that the work is almost noiseless, and the dimensions are small. But the pressure of such a compressor creates a very good one.

Why self-made, not professional?

You probably already know the answer to this question. Often the matter is in price. Professional compressors have a high price. And if you have an old refrigerator that costs nothing, why not take yourself for a few hours and do not make the compressor yourself. As for the design, it is different, but not very. Purchased models have an electric motor, which transfers work through a belt drive. In our case, the motor and the working chamber will be in the same housing, but there is no belt transmission.

Less in a homemade product and automation. Although here protection against overheating needs to be established. Such a relay will save your motor from high temperatures and prevent breakage. As for lubrication, professional compressors can be dry, that is, do not have a lubricant. Such models work at the expense of graphite rings. In our case, there will be a lot of lubrication, which directly affects the durability of the equipment.

It is worth noting that the self-made compressor from the refrigerator with their own hands is not so difficult. But it must be understood that attention to detail is required here. In any case, if you succeed, then at the output you will have a functional station, which you can adjust as you like and arrange as you like. All this, unfortunately, can not be done with the purchased equipment.

Dismantling work

Before using the compressor, it must be removed from the refrigerator and properly equipped. But more about this later. Now actually about how to perform the dismantling work. There is nothing complicated here. You will need a small set of tools: pliers, two screwdrivers (flat and cross), a pair of spanner keys. Probably everyone knows where the compressor is located. Usually this is the bottom rear of the refrigerator.

Now you can proceed with the removal. You will see copper tubes that lead to the cooling system. With the help of pliers they must be bitten off. It is desirable with a maximum vacation. In the future, you can use them for your own purposes. It is necessary to draw your attention to the fact that you need to bite off the tube, and not try to saw them with a file. "Why?" - you ask. Everything is simple, when sawing is necessarily formed small chips, which in one or the other size falls into the compressor, which can lead to a deterioration in its technical condition until the breakdown.

On this work is not finished, we need to remove not less important element - starting relay. Usually it is a white or black small box with incoming and outgoing wiring. Carefully unscrew the fasteners and bite off the wires leading to the plug. In advance, mark, where the relay has top, and where the bottom. This can be indicated on the case, check. Nakidnye keys are needed in order to remove the carcass of the compressor. So we removed the compressor from the refrigerator with our own hands. Another point, take all the fasteners with you, they will be useful to you.

We check the working capacity of equipment

First of all after removal it is necessary to make sure that the compressor is not "dead" and it can be used for its own purposes. To do this, it is necessary to flatten the copper tubes with a flat-nose plier. This is done so that the air can freely flow through and through them. At the next stage, we need to put the starting relay in a position in which it was before the removal. This is extremely important. The fact is that the relay operates on the principle of plate heating and earth gravity. Wrong orientation will lead to its failure. Even the winding of the compressor can burn, which is not good.

There are incoming wires on the relay. They need to be screwed with a wire with a plug. The connection point must be tightened with electrical tape to avoid electric shock. After that you can plug the plug into the socket. If the compressor quietly carves, and the tube is air, then you have done everything correctly and the equipment can be used. At this stage, it is recommended to mark the tubes to know what air is coming from, and which one it is entering. If problems arise during operation, for example, the compressor does not turn on or turns off after a while, then it will be necessary to perform a relay call and find a weak link. This procedure requires minimal knowledge of electrical circuits and electrical engineering in general.

Materials Required for Work

Before you make a compressor from the refrigerator, you need to get everything you need to work. First, it's a compressor. We have already figured out how to remove the engine (compressor) from the refrigerator, so it should be at your fingertips. By the way, different compressors are installed on different models of refrigeration technology. Usually they are a product of a cylindrical shape or a so-called pot.

In order to produce a high-quality compressor, which would fulfill its purpose by 100%, it is necessary to acquire a receiver. In fact, this is the capacity in which the engine from the refrigerator will pump the air. In principle, there are no specific requirements for the receiver. An old empty fire extinguisher, a receiver from a truck, will do. The volume can be different - from 3 liters and more. Also, before making a compressor from the refrigerator, you need to find suitable hoses. The length of two of them should be 10 cm or more, the last should be not less than 50-60 cm. Here it is very convenient to take car hoses. The fact is that they will be attached to filters, and their size is excellent for these purposes.

As for the consumables, these are two filters - gasoline and diesel, clamps, wire, epoxy resin, manometer. As for the tool, it will be found by every master in the workshop. You need a drill, a knife, a screwdriver and pliers. After you have collected all this in a heap, you can start work.

Compressor yourself from the refrigerator: step by step instruction

Most compressors at the output have three copper tubes. Two of them are open, the ones you bite off with pliers, and one is sealed. Usually it is the shortest. Accordingly, the tube from which the air is blowing - the output, and the one that sucks - the input. We do not touch the third one yet, but a little later we will figure out what she is doing and what to do with it. So, after checking the output and the input, make appropriate notes and disconnect the compressor from the network. Next we take a pre-prepared board. It will be our foundation. With the help of screws we attach the compressor to the board. Pipes before connection must be further processed. It is advisable not to use a saw for the metal, it is better to take the pliers.

One important point: the compressor needs to be fastened to the base exactly as it was installed on the refrigerator. Mounting sideways or upside down is not permissible. This is due to the starting relay already familiar to us, which works due to the forces of gravity. Our compressor is not made by ourselves from the refrigerator. Now we need to make a receiver. Suitable plastic container. In its upper part we drill two holes for the tubes of the corresponding diameter. Then we put them there and fill it all with epoxy resin for sealing. One of the tubes (input) should not reach the bottom of the receiver a couple of centimeters. A short tube (output) is started approximately 10 cm. Such manipulations are necessary for more convenient mixing of air.

Iron receiver

"How to make a compressor for painting from the refrigerator?" - you ask. Yes it is very simple, for this it is necessary to use the instruction described above. But there is one thing but, for such purposes, it is best to take an iron receiver. Between plastic and metal, there is not much difference, but only on the iron receiver we can install a pressure gauge. In addition, the hoses are sealed or brewed, and not filled with resin. This ensures a better seal of the container.

To install a manometer, it is necessary to drill a hole of the appropriate diameter, install the device and store this place. Although it would be more humane to go the following way. Drill a hole in a suitable place and make a nut on this place. The only thing left to do is to screw in the manometer, and it's done. In principle, there is not much difference, only the replacement of a failed manometer is much simpler. Once everything is done, you can mount the receiver to the base. To do this, use steel tape or wire. In fact, we almost did the compressor from the refrigerator with our own hands. Remained a few small details.

How to make a mini compressor: the last part of the installation

We have already passed most of the way. Now there are a few touches left. First, take a piece of hose (10 cm) and put on it a gasoline filter. If you use a car hose, then there should not be any problems with putting on. If the hoses are thin and do not put on the fitting, then as an option they can be heated. The free end of the hose must be put on the compressor inlet. If the connections are strong, then the clamps can not be used, especially since there is practically no pressure here. It is easy to guess that the filter is necessary in order to prevent dust from entering the compressor. The second section of the hose is connected to the outlet of the compressor and the input receiver. There will already be a lot of pressure, so we put the clamps. On the third hose we put on the diesel filter, and the second end is inserted into the outlet of the receiver. The outlet fitting of the filter (diesel) is connected to the working hose of the spray gun, airbrush or other equipment. You probably also decide how you can use the compressor from the refrigerator and for what purposes.

Technical characteristics and maintenance of equipment

As for the compressor pressure, it is difficult to talk about specific figures. Much depends on the model and age of the equipment. By the way, "ancient" compressors are more powerful. They are able to give an order of 2-3 bar. Both imported and Soviet models work almost silently, although there are exceptions.

As far as maintenance is concerned, this is a very important point, if you do not want the compressor compressor repair to be required soon. It is not difficult to take care of such equipment with your own hands. The main rule is that it is necessary to periodically change the gasoline and diesel filters. In addition, it is desirable to drain the accumulated oil in the receiver. The decisive role in the durability of the equipment is played by the high frequency of oil change in the compressor. Do this need not as often as at the appointed time. To merge the workpiece, it is necessary to cut off a piece of sealed tube. Remember, we mentioned it at the very beginning of the article. Through it, the old oil merges and a new one is poured.

Is it worth repairing the compressor?

Quite often the engine of the refrigerator breaks down. Strangely enough, but often there is no point in repair. But when it's cold-blooded, the question is solved by replacing it. As for other cases, for example, getting dust inside or burning the winding, it's better to leave it unattended. It's really easier and cheaper to buy a new engine. But the replacement of the compressor of the refrigerator with their own hands makes sense. There is nothing complicated in this. Especially since you already know how to remove the compressor from the refrigerator. It is installed in the reverse order. It is important that the installation is carried out correctly. That is, the joints of the pipes must be sealed, and the wires - reliable, that is, isolated. In general, the process of replacement takes no more than 20 minutes. If you nevertheless decided to repair the compressor of the refrigerator with your own hands, then prepare yourself for the difficulties. First, ring the relay, maybe it's in it, and so the equipment does not start. Then replace the oil in the compressor. If this does not help, then the equipment can be discarded, there is no particular reason to mess with it.

Conclusion

So we figured out how to make a compressor from the refrigerator with our own hands. In general, during work execution there can be a variety of difficulties. Starting with the fact that the filter does not fit hoses, and ending with poor connections or no reaction from the compressor. But most of the problems can be eliminated. In general, such a compressor is a very useful thing. With its help you can do painting and other useful things. More important is what airbrush or atomizer you use, rather than a compressor. The main purpose of such equipment is to provide constant pressure. If there is a need for a large pressure, say 3.5 bar or higher, then finding the right compressor will not be difficult. Most likely, this is a Soviet model. Due to the fact that modern engines of refrigerators, although not powerful, are very efficient. That's all for this topic now you can get down to business.