Household oil-filled electric heater - has long been known to the consumer unit, which allows the device to independently carry out many operations in his repair and maintenance.
Damage to the unit body - a phenomenon often enough, so consider measures to eliminate this failure and its consequences, including the question of what kind of oil in the oil heater to operate safely.
Total oil heaters device
The design of oil filled heater is a sealed metallic heat radiator filled to 80% volume of oil. In the lower part of a tubular electric radiator mounted (or several heaters) and located laterally outside the control unit with devices (circuit breaker, the switch power mode, the flywheel thermostat) and devices to ensure safety of operation (Electric circuit breakers when overheated, rollover or leakage aggregate).
Equipment of oil heaters, depending on the type and class of machine performance is different, but the oil-filled radiator with TAN is present in all devices.
Tubular heater after inclusion in the network increases the temperature of the oil in the lower portion of the radiator than initiates the formation of convective currents in the liquid medium. Due to the convection unit is heated uniformly over the entire surface and gives heat to the air, which as a result of this also starts convective motion.
Heating the contents of the radiator accompanied by expansion of the liquid and, consequently, increasing the pressure in the reservoir. Part of this impact is damped air "cushion", which holds the radiator 20 volume%, but its residue still presses against the inside tank wall. Radiator new oil heater is designed for a load, but due to a number of factors, sooner or later may lose leak. Consider ways to resolve this problem in relation to various types of oil-filled heaters.
finned heater
Radiators resemble the configuration heaters such heat exchangers, cast iron central heating. Individual sections of the heaters are manufactured from blanks cut with a high precision of the laser steel sheet 0.5 mm thick, compression molded, and then collected again by laser welding.
The small thickness of the heat sink wall makes heater vulnerable to corrosion, however outside the hull of such oil heaters protective coloring is performed by powder technology. Mechanical damage to the protective layer, often in everyday life, entail first dot surface, and then through corrosion of the tank with the loss of tightness.
When depressurization finned oil cooler has to solve three problems:
- eliminating damage to the housing;
- filling the oil tank;
- recovery capacity tightness.
The ability to repair the radiator is determined primarily by the design of its heating element.
Important! If TEN seamed to the body, the radiator heater can not be repaired - because of a lack of technological holes to fill oil tank after the restoration of its integrity.
If the removable tubular heater, it allows dismantling drain leakage oil residue, eliminate damage, then re-fill the radiator, and set heater in place.
Since the heater control unit is removed, after which the unit is mounted on the side, is detached from the wire heating element (previously plotted their position) and twisting the heater with a pipe wrench.
Eliminating damage to the housing, a heater is poured into a clean transformer oil. To determine the volume of its need to fill the tank completely, then drain the radiator, heater and return to 4/5 of its total volume. To fill, you can use the remnants of the old oil from the radiator, adding the required amount of new things.
Important! Old oil radiator must be filtered and, if suspected for the presence of inclusions of water, evaporate.
Evaporation of the transformer oil is made during 20-30 minutes at a temperature of 90 degrees - further heating to initiate the oxidation reaction liquid with change in characteristics of the substance.
Transformer oil, being a dielectric, and has good thermal conductivity, and retains these properties at ambient temperatures down to -45 degrees. This substance is produced from petroleum by distillation, and, depending on the initial properties of the product can have significantly different characteristics. Regardless of the type of deposit and the oil, transformer oil may be different without affecting their characteristics to mix with each other.
To fill in oil heater can be used as mineral oil for transmissions of the car - on the viscosity it is close to the transformer, which provides the normal movement of convective flow in the vessel when heating. Pouring synthetic gear oil in the heater because of its lower viscosity would entail noise of the unit due to the greater intensity of convective currents.
The use of heaters in motor oil motor oil is not recommended for the following reasons:
- their viscosity is different for oil-filled heater may be excessively high, resulting in overheating PETN;
- higher cost of these materials (because of technological additives, effective when used in the engine, but not used in the heater), especially synthetic origin.
Important! Used to fill the radiator mixture of oils of different origins is not permissible - interact with each other present in these additives is unpredictable, after heating, the composition may curl, or form a precipitate thicken. Refilling the missing oil should also be carried out material identical in composition to the existing unit.
The use of finned radiators used motor oil is excluded - the presence in the liquid metal and slurry products Combustion adversely affect the quality of work and heat transfer heating element whose replacement in units of this design - the operation time consuming.
Heater Flat Plate
Pouring oil in flat heaters also performed depending on whether or not it allows them to design.
The oil heaters with a flat body of domestic production of oil pouring envisaged construction - to be able to add a liquid, their heat sinks in the lower part equipped with a drain plug.
Modern oil-filled heaters with flat housing offered by foreign manufacturers, are not designed for refilling oil forces the consumer. However, when the removable structure PETN radiator repair technology with its subsequent filling will not be different from the recovery finned heater. Terms of use of various types of oils in oil heaters with a flat housing are also identical to the above.
Important! If there is doubt in the success of better refuse to repair the appliance and buy a new heater - recovery unit must be carried out to a state that guarantees safety.
Homemade heating device
Made with their own hands oil heaters - heating units, aesthetics are not high performance, since they are most often used in commercial or technical areas. But in this case the durability of such devices many times exceeds the capacity of industrial heaters operate production, since for their manufacturing materials with a large safety margin - the steel pipes, cast iron radiators.
Accordingly, the requirements for aggregates used in such oil is also democratic.
In addition to these types of oils, radiator heaters improvised from pipes can be used, and used motor - significant inner volume of the heat exchanger provides normal conditions for convection enhanced lubricating fluids even viscosity.
The only condition remains unacceptability blending oils of different origins - outcome options can be set by totally favorable to failure of PETN.
conclusion
Today's market is saturated with oil heaters, which are used in the design of the latest technical developments. However, such units are rarely designed for self-service user. In this case, the home is still relevant instruments of domestic production - reliable and durable operation of which gives skills repairs with their own hands. The article will help those who, having understood the prospect of repairing the heater, decided on their own to extend the term of its operation.
The main essence of the article
- Oil heaters - appliances have long been known to Russian consumers as equipment, possible to restore their own hands.
- Possibility of repair of oil-filled heater is determined by the design of its heating element.
- Selection oil filling device after repair depends on the kind of the unit and its materials of manufacture radiator - the higher the class of the device performance, the greater are the requirements for filling it liquid.
- It is advantageous to repair the oil cooler must be assessed objectively - experiments with recovery could result in a fire, while the cost of these appliances is available to the consumer at all price range.
