Points To Note When Installing A Steam Radiator

Points to Note When Installing a Steam Radiator

Steam heat exchanger is an indirect heat exchange equipment, which consists of multiple heat exhaust tubes. When steam is used as the heat medium, steam is passed inside the tube and air goes between the fins outside the tube. There are many specifications due to different fin materials and fin winding forms. Steam heat exchanger can be used in a variety of equipment.

When the dryer equipment is working, the high-pressure steam enters the heat exchanger from the inlet pipe and exchanges heat with the cold air outside the pipe, and then the condensate is discharged into the return pipe through the evacuator in the exhaust pipe.

1. The inlet pipe and return pipe of the steam heat exchanger of the dryer should be of the same size as the inlet and return fittings of the radiator (2-inch pipe).

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

3. When the steam heat exchanger is not in use, the remaining water should be drained to avoid ice expansion of the finned tube in winter. 4.

4. Check the steam heat exchanger and pipeline frequently for air and water leakage, and deal with the situation in time.

5. The filter in the trap should be cleaned regularly.

Installation of steam heat exchanger foundation must meet in order to make the steam heat exchanger does not sink, or so that the piping will be too large deformation to the receiver of the heat transfer. The foundation is generally divided into two kinds: a brick saddle foundation, steam heat exchanger on the saddle without support and directly on the saddle foundation, heat exchanger and the foundation is not fixed, can move freely with the need for thermal expansion. Another for the concrete foundation, heat exchanger through the saddle support by the ground bolt will be firmly connected to the foundation.

In the installation of steam heat exchanger should be strictly carried out before the foundation quality inspection and acceptance work, the main items are as follows: the foundation surface profile; foundation elevation, plane position, shape and main dimensions as well as the main holes are in line with the actual requirements; foot bolts are correctly positioned, whether the thread situation is good, whether the nut and the washer; placed on the basis of the iron mat is the surface of the foundation is flat and so on.

After the foundation acceptance is completed, before installing the heat exchanger on the foundation to put the pad iron, put the pad iron at the foundation surface must be shoveled flat, so that the two can make good contact. The thickness of the pad iron can be adjusted so that the steam heat exchanger can reach the designed level height. Mat iron placed to increase the stability of the steam heat exchanger in the foundation, and will be its weight through the mat iron evenly transferred to the foundation. Matting iron can be divided into flat iron, oblique iron and open iron. Among them, the slanting iron must be used in pairs. Ground bolts on both sides should be pads, the installation of pads should not hinder the thermal expansion of the steam heat exchanger.

Steam heat exchanger in place after the heat exchanger needs to be leveled with a leveling device, so that each receiver can be connected to the pipeline without force. After leveling, the inclined pad iron can be welded to the support, but shall not be welded to the flat pad iron or slide plate below. When installing two or more overlapping heat exchangers, the upper heat exchanger should be installed after the lower heat exchanger has been leveled and the ground bolts have been adequately secured. Pumpable tube bundle steam heat exchanger should be extracted before installation core inspection, cleaning, pumping tube bundle should pay attention to protect the sealing surface and folding plate. When moving and lifting the steam heat exchanger tube bundle should be placed on a special support structure to avoid damage to the heat exchanger tube.