How to use and maintain the steam radiator?

How to use and maintain the steam radiator?

Steam radiators are used as air heaters for electrically heated air in warm air machinery and equipment, and are the primary machinery and equipment in warm air machinery and equipment, and are commonly used in cyclone air drying of corn starch. Steam heating tube radiators are used for warm air heating, air conditioning and refrigeration principle systems and air drying machinery and equipment for electric heating of air. Mainly used for steam heating and hot water heating systems, it is commonly used in heating and ventilation systems in many manufacturing enterprises and large housing buildings.

Check the integrity of the steam heating heat pipe radiator before installation, twist open the pipe buckle, silk plug, coupling steam heating pipe radiator butt (water pipe caustic or steam pipe), should be the same as the steam heating pipe radiator inlet and outlet joint specifications, can not use butt to support steam heating heat pipe radiator. Steam heated pipe radiators should be configured according to the building planning and design of the relative thermal media piping system. Note that in the steam heating or hot water pipeline and in the return pipeline should be machine equipment to close the ball valve, with steam heating plus when the condensate pipeline to machine equipment condensate excluder. In several steam heating heat pipe radiator combination use, it is best for each unit to be able to separately manipulate its into the steam, steam and return pipe machinery and equipment, especially steam heating heat pipe radiator air flow in a tandem state when used.

Steam radiators are indirect heat equipment, consisting of a number of heat pipe heat dissipation row pipe assembly. When using steam heating as a heat medium, the tube is heated by steam, and the fins outside the tube go between the air. Due to the different materials of the fins and the form of winding of the fins, many specifications are formed. Steam heat exchangers can be used in various machines and equipment.

When the dryer equipment is in operation, the high pressure steam is heated by the inlet pipe into the heat pipe heat exhaust pipe, and the cold air outside the exhaust pipe after heat exchange, condensate through the exhaust pipe in the evacuator discharge into the return pipe.

1. The dryer steam heat exchanger inlet and return pipes should be the same as the heat pipe radiator inlet and outlet joint specifications (2" pipe).

2. Before passing into the steam heating, the sewage pipe shut-off valve should be opened to drain the condensate in the pipe, and then close the drain valve door, open the steam inlet and return valve pipe to pass into the steam heating. Preheat ten minutes before drumming cold air, to avoid steam heating suddenly into the cold heat exchanger and lead into a large amount of condensate, resulting in shock or freezing and other phenomena.

3. steam heat exchanger in the non-use, should be put out of the remaining water, so as to avoid ice in winter to expand the crack finned radiator.

4. often check the steam heat exchanger, the pipeline has no gas leakage, water leakage phenomenon, if the above situation should be dealt with in a timely manner.

5. Water evacuator within the screen should be regularly cleaned.

Installation of steam heat exchanger base must be met in order to make the steam heat exchanger does not sink, or make the pipeline to transfer excessive deformation to the butt of the heat transfer. Foundation is generally divided into two types: one for the brick saddle-shaped foundation, steam heat exchanger without saddle-type support and directly on the saddle-shaped foundation, heat exchanger and foundation do not have to be fixed, you can follow the thermal expansion needs to move at will. The other is a concrete foundation, where the heat exchanger is firmly connected to the foundation by saddle-type supports with ground bolts.

Before the installation of steam heat exchangers should be strictly based on the quality of inspection and acceptance of the work, the primary project is as follows: foundation surface profile; foundation elevation, plane position, shape and primary specifications and whether the reserved holes meet the actual requirements; foot bolt position is correct, the external threads are specific whether excellent, nuts and washers are complete; placed on the foundation surface of the gasket is flat.

After the acceptance of the foundation, before the installation of the heat exchanger on the foundation of the pad iron, the surface of the foundation where the pad iron is placed must be shovelled flat, so that the two can be in good contact. The thickness of the pads can be adjusted to allow the steam exchanger to reach the designed horizontal height. The placement of the pads increases the stability of the steam heat exchanger on the foundation and transfers its weight evenly through the pads to the foundation. The mats can be divided into flat mats, inclined mats and open mats. Among them, inclined mats must be used in pairs. Both sides of the foot bolt should be gasket, the installation of the gasket should not prevent the thermal expansion of the steam heat exchanger.

After the steam radiator is in place, the heat exchanger needs to be levelled with a leveling instrument, so that each butt can be connected to the pipe without stressing the specific situation. After levelling, the inclined gasket can be welded to the support, but not with the following flat gasket or slide plate welded. When more than two overlapping heat exchangers are installed, the upper heat exchanger should be installed after the lower heat exchanger is leveled and the ground bolts are fully secured. Can be drawn before the installation of the steam heat exchanger bundle should be drawn to check the core, clean, drawn when the bundle should pay attention to protect the sealing surface and folded plate. When moving and lifting the steam heat exchanger bundle, the bundle should be placed on a special support structure to avoid damage to the heat exchanger tube.