The fundamental difference between a steam boiler and a hot water boiler

When it comes to boilers and hot water boilers, the working principles of both are more or less the same. In steam boilers and hot water boilers, water is heated through fuel combustion. And naturally, both steam boilers and hot water boilers are the most important equipment in the industry and some facility systems.
If you want to use a steam boiler or a hot water boiler in industrial places and you don't know exactly what type of equipment is more suitable for you, stay with us in the rest of this article to discuss the difference between a steam boiler and a hot water boiler.
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Comparison of steam boiler and spa boiler

As you know, in spa boilers, the maximum working temperature (heating) is about 90 degrees Celsius, but in industrial steam boilers, the temperature is much higher than 100 degrees and based on the working pressure (which may rise to about 25 atmospheres), The temperature of the system rises to about 500 degrees Celsius. Of course, these numbers may even be much higher in the case of power plant boilers. To better compare the steam boiler and the spa boiler, in the rest of the article, we will give a full description of each in terms of performance, installation, and use:

The difference between a spa boiler and a hot water boiler

The difference between hot water boilers (cast iron and steel) and hot water boilers (steel) is that in hot water boilers, the water temperature rises only to a temperature lower than the boiling temperature at a pressure of 1 atmosphere (100 degrees) and usually the thermostat Cast iron or steel hot water boilers are set to a maximum temperature of 90 degrees Celsius (centigrade); But in hot water boilers that are usually used in industries, increasing the working pressure of the boiler to higher than atmospheric pressure raises the water temperature to the level required in that process (higher than the boiling point temperature of water).
In hot water boilers, it is possible to increase the temperature of the water up to 130 degrees Celsius (at a pressure of 3 atmospheres) or even hot water of 180 degrees Celsius (centigrade), for example, at a pressure of 6 atmospheres or higher, depending on the needs, structure and design power of the hot water boiler raise.

Steam boiler and hot water boiler performance

In the rest of this article, we will examine the difference between the performance of a steam boiler and a hot water boiler.
Steam boiler performance: In a steam boiler, steam is produced directly through fuel (coal, gas combustion, diesel, and fuel oil) or by using clean energy such as solar, nuclear energy, etc., and indirectly, such as by Recycling combined heat in processes or even equipment (gas turbine) can be produced.
Hot water or hot water boiler performance: Hot water boiler or steel hot water boiler by using the heat from burner combustion and heat exchange between the absorption surfaces of thermal energy with the heat transfer fluid, providing the required heating of the building's central heating system in The industry is in charge of the facilities.

Application of steam boiler and hot water boiler

Steam boilers and hot water boilers are widely used in various industries. In the following, we try to learn about the uses of steam boilers and hot water boilers.

Implementation of a boiler

In the rest of the article, we will learn about the use of steam boilers:

• Due to its high temperature and rapid evaporation, steam can be considered a very suitable option for cleaning surfaces from all kinds of fats. Therefore, many industries such as hotels, restaurants, car washes, etc., use steam boilers to clean their surfaces and clothes (laundry).
• In the dairy industry, due to the production of all kinds of dairy products, steam at a very high temperature is needed; For this reason, most of these dairy industries use steam boilers.
• Other uses of steam boilers include the production of chemical compounds such as polymers, plastics, etc. in chemical industries.
• In the bitumen industry, steam is used to heat the bitumen. The water vapor produced by the steam boiler can transfer a large amount of heat to the bitumen and in this way create the necessary heat to heat the bitumen and liquefy it.
• The steam boiler can be used to supply the temperature and humidity of steam saunas.
• Finally, the use of steam boilers in power plant industries is to circulate steam turbines and generate electricity.

The utilization of the boiler

The most important application of the hot water boiler is to use it in the central heating system which provides heat to the interior of buildings. Among the other uses of the spa boiler, the following can be mentioned:

• Using the spa boiler in the central heating system
• Use in the engine house system of large buildings and towers
• Providing the required heat for the radiator, fan coil, and heater unit
• The use of spa boilers in industries to provide ambient heating

Installation of steam boiler and hot water boiler

In this part of the article, we examine the important points when installing a steam boiler and a hot water boiler.

Boiler installation

When installing the boiler, it is better to pay attention to the following points:

• The ability to access various parts of the boiler and the presence of head hole-handhole-manhole valves in different parts for periodic services and even the possible replacement of defective tubes.
• Paying attention to the full dimensions of the steam boiler with accessories and their weight for entering the engine room and installing it at the inspection site.
• In engine houses where steam boilers are used, it is necessary to use water hardness devices or sediment removers, as well as additional equipment such as deaerators in the way of boiler feed water. The maximum water hardness allowed for steam boilers is 20 PPM.
• When choosing, buying, and installing a steam boiler, in addition to paying attention to the alloy of the main furnace and tubes, pay special attention to the very important issue of auxiliary equipment and the safety of the steam boiler.

Installation of hot water boiler

Keep the following points in mind when installing a hot water boiler:

• In engine rooms that use steel hot water boiler or a steel hot water boiler, it is also necessary to install a water hardness or sediment remover device.
• Considering that the installation of all the main equipment of the engine room, including the central heating boiler, is done on the pre-made concrete foundation with suitable dimensions according to the location plan and exactly where the equipment is located, therefore, before installing the main equipment of the engine room, including the spa boiler Steel, install the required concrete foundation according to the defined dimensions and standards.
• Installing a manometer thermometer to show the temperature of the hot water in the boiler as well as the pressure of the building heating system is mandatory on every steel hot water boiler in the motor house.
• Installing a submerged thermostat (submerged Augustat) with a temperature range of 30 to 90 degrees Celsius is required to adjust the boiler temperature and the off-on command to the burner on every steel spa boiler.
• Also, install at least one safety valve and at least one submerged thermostat (submerged Augustat) with a temperature range of 30 to 90 degrees Celsius or more (based on the working temperature of the hot water or hot water boiler) to adjust the boiler temperature and the off-on command to the burner relay. Warm water or hot water is required on every pot.
  You can also read the article CAST IRON BOILER USE for more information.

Conclusion

In this article, we briefly examined the difference between a steam boiler and a hot water boiler from the point of view of performance, application, and installation. Both types of equipment have their advantages and choosing between a steam boiler and a hot water boiler is not an easy process, but considering your circumstances, you can make a more suitable choice. However, you can purchase the best equipment by using the technical advice of the experts of Dema Tehazif.

Final speech

The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.

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