บทนำ

High pressure steam boiler is a type of steam boiler. ทำงานโดยการทำให้น้ำร้อนและสร้างไอน้ำภายใต้สภาวะความดันสูง. There are several types of high pressure steam boilers available in the market with different applications and features. ในบทความนี้, we will discuss all aspects related to high pressure steam boilers such as how they work, how they are different from low-pressure boilers etc…

What is a high pressure steam boiler?

high pressure boiler for sale

A high pressure steam boiler is a type of boiler that operates at high pressure, which allows it to generate more heat than a conventional boiler. High pressure steam boilers are used in industries such as power generation and food processing.

Pressure vessels are used to contain the steam produced by the high pressure steam boilers. The pressure vessel is made of steel or other materials and can be pressurized to over 200 bar (2900 ปอนด์ต่อตารางนิ้ว).

How does a high pressure steam boiler work?

Working principle of high pressure boiler

The high pressure steam boiler (HPSB) generates steam by heating water. The heat from the combustion of fuel is transferred to the water in a large heat transfer unit through thermal contact. This produces a superheated fluid, เช่น., one with a temperature higher than its boiling point at atmospheric pressure.

The steam generated is then used to drive a turbine that drives an electric generator or mechanical drive equipment such as pumps, compressors and fans etc.

Due to lack of space in urban areas where most power stations are located, HPSBs typically have only one stage of expansion resulting in low efficiency compared with other types such as combined cycle gas turbine plants which use multiple stages to increase efficiency.

What is the maximum pressure on a steam boiler?

High Pressure Steam Boiler Pressure

The maximum pressure of a steam boiler is typically around 25 bar. The maximum pressure depends on the design of the boiler and on the application of steam. ตัวอย่างเช่น, in some applications, ที่มีวาล์วนิรภัยหรือระบบนิรภัยอื่นติดตั้งเพื่อป้องกันแรงดันเกินในกรณีที่เกิดขัดข้อง, อาจเป็นไปได้ที่ความดันจะสูงกว่า 25 bar.

ในแง่ทั่วไป:

ความดันสูงสุดคือจุดที่หม้อไอน้ำร้อนจัด. ซึ่งหมายความว่าไม่มีความชื้นเหลืออยู่ในไอน้ำและมีอุณหภูมิสูงกว่า 100°C.

หม้อต้มแรงดันสูงกับหม้อต้มแรงดันต่ำต่างกันอย่างไร?

หม้อต้มแรงดันสูง vs หม้อต้มแรงดันต่ำ

หม้อต้มไอน้ำแรงดันสูงคือหม้อต้มไอน้ำที่ทำงานด้วยแรงดัน 80 PSIG ขึ้นไป. หม้อไอน้ำแรงดันสูง โดยทั่วไปจะใช้ในการผลิตกระแสไฟฟ้า, เหมืองแร่, การขับเคลื่อนทางทะเลและอุตสาหกรรมหนัก. หม้อไอน้ำแรงดันต่ำแรงดันใช้งานสูงสุด 70 PSIG มีอยู่ทั่วไปในโรงงานอุตสาหกรรมที่ต้องการความร้อนจากอุปกรณ์เผาไหม้ (ตัวอย่างเช่น, เตาเผา) เช่นเดียวกับการใช้งานให้ความร้อนในกระบวนการ เช่น หอกลั่น.

หม้อไอน้ำแรงดันสูงมักจะมีประสิทธิภาพมากกว่า หม้อไอน้ำแรงดันต่ำ because they can operate closer to their maximum theoretical efficiency.

Where are high pressure boilers used?

High Pressure Steam Boiler Application

High pressure boilers are used in the chemical industry, especially for steam sterilization, pasteurization and other processes. They are also used in food and beverage processing operations such as milk pasteurization and water purification. In addition to their use in these industries, high pressure boilers are used in pharmaceutical manufacturing facilities where sterile conditions must be maintained at all times. In pulp and paper mills high pressure boilers are used for steam generation or as a source of process steam needed for cooking chemicals before they enter the paper making process.

What are the characteristics of high pressure boiler?

High pressure steam boilers are a heat exchanger system used to generate steam. They are often used in power generation and industrial processes. High pressure steam boilers can also be used for water heating and process heating, depending on their design parameters.

High pressure steam boilers have high thermal efficiency, which means that they convert fuel into energy very efficiently—around 60 percent of the fuel is converted into useful energy, compared with 30 percent for a typical coal-fired plant or 40 percent for natural gas plants (in the U.S.).

Types of High Pressure Steam Boilers

There are several types of High Pressure Steam Boilers, เช่น: หม้อต้มน้ำ, หม้อต้มท่อไฟ, Waterwall Boiler and Water-Wall Tube Water Tube Steam Boiler.

1. หม้อต้มน้ำแบบท่อ: In this type of boiler, water flows inside the tubes and the hot gases from the combustion chamber surrounds the tubes. They are generally more efficient than fire-tube boilers and are used in large industrial settings such as power plants. These are usually two pass design, but some designs may have three pass. The large heat exchange surface area and high efficiency make this type of boiler ideal for generating large amounts of steam at high pressures.
2. Fire-tube Boilers: In this type of boiler, the hot gases from the combustion chamber pass through the tubes, which are surrounded by water. They are generally less efficient than water-tube boilers and are used in smaller industrial settings, as well as in residential and commercial heating systems. Fire-tube boilers are usually smaller in size and are less expensive to purchase.

Water-tube boilers tend to be more expensive and require more skilled labor to operate and maintain, while fire-tube boilers are less expensive and can be operated by less skilled personnel. The choice of which type of boiler to use is generally determined by the size of the system, the required pressure and steam output, and the cost of the installation.

It’s also possible to find combination of these two main types of boilers, call as hybrid boilers which can take advantages of both types.

How much does it cost to install a high pressure steam boiler?

The cost of installation can vary depending on the location, size and brand of your boiler. Installing a high pressure steam boiler can cost anywhere from $5,000 ถึง $100,000. It’s important to note that the overall cost will be higher if you’re installing it in a remote location because this will require more time and materials.

บทสรุป

High pressure steam boilers are a great way to heat your home and produce hot water. They are also cost-efficient and environmentally friendly. อย่างไรก็ตาม, there are some things you should consider before installing a high pressure system in your home. These include how much it will cost to install as well as how much energy will be used by the boiler itself when running at full capacity. Also keep in mind that high pressure boilers run on natural gas so make sure you have access to this type of fuel source before purchasing one or two units for installation purposes only!