Boiler is a kind of energy conversion equipment. The fuel is input to the boiler and converted by the boiler, and the steam, high temperature water or organic heat carrier with certain heat energy is output to the outside. Industrial boilers are mostly used in the production of textiles, printing and dyeing, pharmaceuticals, chemicals, oil refining, papermaking, heating and other processes to provide steam or hot water.

Steam boilers are widely used in the industrial field. According to the accumulation of thousands of customer cases on EPCB, we provide boiler solutions for industries in different fields. There is always a boiler suitable for your industry, understand the needs of your industry, and configure it in line with your industry production. The boiler you need can make you a leader in the industry.

This article is mainly divided into the following parts:

l Boiler application industry

l Steam Boiler: What Is It?

l What are the types of steam boilers?

l What are the components of a steam boiler?

l New Steam Boiler Introduction

l Conclusion

Boiler application industry

·Food Industry

·Brewing Industry

·Washing Industry

·Pharmaceutical Industry

·Paper-making Industry

·Textile Printing and Dyeing Industry

·Chemical Industry

·Heating Industry

Food Industry

Boilers in food factories are mainly used for distillation, disinfection, drying, curing and other processes in food processing. High-temperature steam is used to cook, dry and sterilize food at high temperature.

Steam boilers are most frequently used in the food industry, mainly transporting steam through pipelines, requiring constant steam temperature and constant pressure, and even the quality of steam determines the quality of food leaving the factory.

Some food factories also use hot water boilers for central heating of their workshops, office buildings, etc., or special processing of some special foods.

When processing edible oil, many processes require heat sources, and steam is used as a heat medium. Among them, direct steam and indirect heat sources are required for the drying of relatively wet materials, softening and heating of dried materials, heating during leaching, separation of residual dregs and solvent for oil separation, and refining and heating.

General requirements for steam in food factory

Clean steam is ideal for the food and beverage industry.

Currently, the food and beverage industry typically uses three different grades of steam: industrial steam, filtered steam, and clean steam.

Industrial steam is typically used for heat transfer applications and is not suitable for direct food contact applications due to the impurities and other chemicals it contains.

Filtered steam, also known as cooking steam, passes through a precision stainless steel filter to remove impurities from the steam. Although this sophisticated filter can filter 95% of impurities larger than 2 microns, it cannot filter impurities smaller than 2 microns. Moreover, the chemical substances in the steam cannot be filtered and eliminated, so the water treatment additives of the boiler are required to meet the requirements of food grade. At the same time, the filter needs to be cleaned regularly, otherwise the filtration capacity will be greatly reduced, resulting in risks.

Clean steam is steam produced by heating pure water with industrial steam, which can avoid the risk of impurities and chemical pollutants. It is widely used in the food and beverage industry for direct heating, sterilization, cleaning, spraying, cooking and other applications. Ideal for the industry.

Brewing Industry

Beer Brewing

Steam is used in beer production, and relying on steam to provide heat source to complete processes such as gelatinization, saccharification, filtration, fermentation, canning, sterilization and disinfection. The steam generated by the steam boiler is passed into the pipes of the gelatinization pot and the saccharification pot to be heated in turn to make the rice and water fuse and gelatinize, and then continue to heat to complete the saccharification process of the gelatinized rice and malt. Steam is also used for the sterilization of beer and the high-temperature cleaning of fermenters and beer bottles during the complete production process.

Washing Industry

As a carrier of energy, steam is widely used in the washing industry.

1. The application of steam in washing equipment: The washing equipment provides a steam interface, and the steam is introduced into the inner cylinder of the washing equipment, which can quickly heat the cold water in the inner cylinder, so that the washing effect of the linen is better during the washing process.

2. The application of steam in industrial dryers: The main energy of industrial dryers is to heat the linen to be dried through the input steam to achieve the purpose of drying. Using the continuous input of steam, using the function of the dryer structure, and the circulation principle, the wet linen is quickly dried.

3. The application of steam in the ironing machine: The role of steam in the ironing machine is similar to that of the dryer, heating the drum of the ironing machine, ironing the sheets, and drying the sheets.

4. The application of steam in other auxiliary washing equipment: steam irons need steam heating to iron clothes, and portrait machines need steam heating to iron high-end clothes.

Pharmaceutical Industry

In the pharmaceutical industry, steam is an indispensable production condition, mainly used for heating products and sterilizing equipment. Pharmaceutical companies need a lot of steam for high-temperature sterilization and disinfection of raw materials, instruments and equipment, and heat supply in drying, cooling, tableting and granulation. The commonly used preparations are tablets, pills, powders, injections, tinctures, solutions, extracts, ointments, etc. The main processes include disinfection, rough washing, fine washing, drying, cooling, preparation, granulation, tableting and coating, etc. This process requires high-temperature sterilization of raw materials, instruments and equipment with a large amount of industrial steam and pure steam, and heat supply during drying, cooling, tableting and granulation.

Steam Demand

Equipment used: drying box, extraction tank, concentration tank.

Basic configuration: configure according to the design power of the device.

Paper Industry

In paper production, steam is required for heating and dissolving chemicals, processing and molding, black pulp concentration, and pressing and drying during pulping. Therefore, steam boilers are the main power of production in paper mills.

Carton Factory

Steam temperature: 185℃, the size is determined according to the output.

Textile Printing and Dyeing Industry

The main process of textile printing and dyeing is divided into three steps: pre-treatment, dyeing and printing, and post-cleaning. The main processes include singeing, desizing, scouring, bleaching, mercerizing, setting, drying and dyeing. Boiler steam is a member of the textile production line equipment, used to drive drying and other equipment, and provide heat in the process of tablet pressing, singeing, de-cooking, bleaching, shaping, and dyeing.

Chemical Industry

The chemical industry process is mainly divided into three steps: raw material processing, chemical reaction, and product refining.

Among them, the chemical reaction is the key step. The reaction is carried out under certain conditions of temperature and pressure, and a large amount of steam of different quality is required to supply heat in the processes of polymerization, condensation, drying, melting, and molding.

Synthetic materials mainly include plastics, synthetic rubbers, and synthetic fibers, which are formed by crude oil refining and petroleum gas cracking and polymerization.

Commonly used polymerization methods in industry include bulk polymerization, suspension polymerization, emulsion polymerization, solution polymerization, slurry polymerization, gas phase polymerization and the like.

The main production units in a refinery usually include: crude oil distillation (atmospheric and vacuum distillation), thermal cracking, catalytic cracking, hydrocracking, petroleum coking, catalytic reforming, refinery gas processing, and refining of petroleum products.

Steam boiler is an important equipment often used in the production process of light oil refining industry. The steam it generates is an indispensable heat source and power source in petrochemical production. It is not only used in petrochemical production process, but also can heat oil and increase fluidity. Generally, heat is provided in the vacuum distillation of crude oil, vacuum distillate and residual coking deep processing in refined oil refining.

Heating

Central heating in the heating industry refers to the construction of centralized heat sources in industrial production areas and areas where urban residents gather to provide heat for production and living to enterprises and residents in the area and surrounding areas. Common central heating modes include cogeneration, regional coal-fired boilers, and gas-fired boilers. The working principle of boiler heating is that the water enters the boiler through the water inlet, and the water that meets the heating standard after being heated by the boiler is sent to the indoor radiator through the circulating water pump, and heats by radiation and convection heat exchange. The water flowing through the radiator returns to the boiler for heating, and then flows back into the radiator, and the cycle goes on and on.

Steam Boiler: What Is It?

A steam boiler is a heating system that produces steam. It produces energy by heating water to produce steam. It is a heat exchanger that produces steam for outdoor use, with a combustion chamber and a water container. The main job of a steam boiler is to generate steam. A steam boiler is essential whenever you want to generate heat or steam.

What are the types of steam boilers?

There are different types of steam boilers, but there are two basic types, fire tube boilers and water tube boilers.

Fire Tube Boiler

In this type of steam boiler, combustion gases flow inside the tubes and transfer heat to the water. They can be divided into number of passes, which means the number of times the gas flows around the container to transfer heat to the water.

The fire tube boiler is an industrial boiler in which the flue gas generated by the combustion of fuel flows through the fire tube or the smoke tube to heat the water, steam or soda-water mixture outside the fire tube or the smoke tube. Also called shell boiler.

Water Tube Boiler

In this type of steam boiler, the tubes contain flowing water, and the exhaust gas bypasses the surface of the tubes in the shell, affecting the temperature of the water in the tubes. Water tube boilers are used in places with high steam pressure because they can withstand higher internal pressures than fire tube boilers.

Water tube boiler refers to an industrial boiler with a combustion chamber and a heating surface outside the drum, so that water and steam flow in the tube. Water tube boilers are capable of producing saturated or superheated steam for different purposes, especially for processes including dry steam, high energy steam and high pressure steam.

What are the components of a steam boiler?

Different boilers may have different designs, but three main parts remain the same across different designs: the combustion chamber, heat exchanger, and burner. Now, we will briefly explain each one.

1. Combustion chamber

The combustion chamber, usually made of cast iron, is responsible for burning the fuel inside. The heat generated by the combustion chamber is transferred to the heat exchanger portion of the system. In addition, the temperature in the combustion chamber can rise to several hundred degrees in a short period of time.

2. Heat exchange chamber

A series of flues filter the water around the combustion chamber in a water circulation boiler system. Next, the hot water under pressure is piped into a heater or radiator and separates the heat energy produced in the boiler from the water.

3. Burner

The burner is the part that initiates the combustion reaction inside the boiler. Fuel is pumped into the boiler with the aid of an external source. The fuel is turned into a fine spray with the help of the nozzle of the burner and ignited, so that the reaction takes place in the combustion chamber.

New Steam Boiler Introduction

Boiler manufacturers represented by EPCB have proposed a modular steam boiler system - a large-capacity steam boiler is divided into small-capacity steam boilers, and the number of boilers increases accordingly. Users can adjust the operation of the boiler according to the dynamic change of the actual heat demand. number of units.

This new modular steam boiler not only solves the problem of boiler thermal efficiency loss, but also can be installed flexibly and has better safety. They can be flexibly installed near the heat-using production line, and can be combined in multiple modules according to the amount of steam used. The most immediate benefit for users of modular solutions is the savings in operating costs.

Conclusion

Boiler industry development: energy saving and environmental protection are imperative

With the increasing awareness of global energy conservation and emission reduction, boilers, as a major energy consumer, need to achieve real energy conservation. Unit energy saving and emission reduction.

Compared with traditional boilers, modular boilers are a new breakthrough in design concept and form. Modular boilers are environmentally friendly, energy saving, safety, automatic control, life, installation, power consumption, capacity expansion, floor space and space, etc. Therefore, this will also be a development trend of industrial steam boilers in the future.

Further Reading:

International Textile Printing and Dyeing Industry Development Road in the Post-Epidemic Era

Industrial Steam Boiler Development Direction

New Scientific Research | Energy Saving and Emission Reduction and Industrial Boiler Technology Innovation