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Alternative Methods of Classifying Pressure Vessels

Alternative Methods of Classifying Pressure Vessels

What Other Classification Methods Are There for Pressure Vessels? Categorized by vessel wall thickness: Containers are classified as thin-walled (wall thickness ≤ 1/10 of the inner diameter) or thick-walled. Based on shell geometry: Containers are grouped as spherical, cylindrical, or special-shaped. By manufacturing method: Containers are identified as steel structure, casting, or machining containers. Considering structural materials: Containers are classified as steel structure, cast...

Nov 30, 2020 Industrial News
How Pressure Vessels Are Classified in the Capacity Regulation

How Pressure Vessels Are Classified in the Capacity Regulation

To streamline safety management and regulatory oversight, the "Capacity Regulation" categorizes containers into three types based on pressure level, medium harm, and production role: Class I Pressure Vessels: Low-pressure vessels (excluding Class II and Class III). Class II Pressure Vessels: 1. Medium-pressure vessels (excluding Class III). 2. Low-pressure reaction and storage vessels with flammable or moderately hazardous media. 3. Low-pressure containers with extremely toxic and highly...

Nov 21, 2020 Industrial News
Classifying Pressure Vessels Based on the Principle of Action

Classifying Pressure Vessels Based on the Principle of Action

Following the operational principle in the manufacturing process, pressure vessels are categorized into reaction pressure vessels, heat exchange pressure vessels, separation pressure vessels, and storage pressure vessels. When a pressure vessel performs multiple functions simultaneously, it should be classified based on its predominant process function.

Oct 30, 2020 Industrial News
The Role of Heat Exchangers in Industrial Processes

The Role of Heat Exchangers in Industrial Processes

The Heat Exchanger Pressure Vessel is primarily utilized for medium heat exchange, encompassing devices like shell-and-tube waste heat boilers, heat exchangers, coolers, evaporators, heaters, and more. What are examples of typical heat exchange containers? In the production process, the Heat Exchanger Pressure Vessel facilitates medium heat exchange. It includes various containers such as tubular waste heat boilers, heat exchangers, coolers, condensers, evaporators, heating pots, disinfection pots,...

Oct 27, 2020 Industrial News
Categorizing Vessels by Pressure, Design Temperature, and Installation

Categorizing Vessels by Pressure, Design Temperature, and Installation

Pressure vessels can be classified based on various factors, including pressure-bearing methods, design temperature, and installation method. 1. Pressure-Bearing Methods: Pressure vessels are categorized into two major types based on pressure-bearing methods: (1) Internal Pressure Vessels: These containers have media pressure inside the shell. The design focuses on wall thickness determined by strength calculations. (1) External Pressure Vessels: These containers have media pressure outside the...

Oct 19, 2020 Industrial News
Categories of Pressure Vessels Based on Pressure Levels

Categories of Pressure Vessels Based on Pressure Levels

Pressure vessels are categorized based on pressure levels, which include low pressure, medium pressure, high pressure, and ultra-high pressure: Low Pressure Pressure Vessels(Code L): Pressure ranging from 0.1MPa to less than 1.6MPa. Medium Pressure Pressure Vessels(Code M): Pressure from 1.6MPa to less than 10MPa. High Pressure Pressure Vessels(Code H): Pressure from 10MPa to less than 100MPa. Ultra-High Pressure Pressure Vessels(Code U): Pressure equal to or exceeding 100MPa.

Oct 10, 2020 Industrial News
What are the Requirements that Pressure Vessels Must Fulfill?

What are the Requirements that Pressure Vessels Must Fulfill?

Pressure vessels must exhibit specific performance characteristics suitable for the process, ensuring safety, reliability, ease of manufacturing and installation, advanced structure, convenient maintenance, and economic rationality. The design of pressure vessels should adhere to the following criteria: (1) Strength: This pertains to the container's capacity to withstand pressure or other external loads without cracking or undergoing excessive deformation. (2) Stiffness: This refers to the container's...

Sep 21, 2020 Industrial News
How to Specify the Medium in the Process Parameters of a Pressure Vessel?

How to Specify the Medium in the Process Parameters of a Pressure Vessel?

The term "medium" in the context refers to the substance contained in the pressure vessel, existing in a liquid, gaseous, or gas-liquid mixed state. The safety of pressure vessels is intricately linked to the nature of the contained media. Different characteristics of the media necessitate varied requirements for the material, manufacturing, and utilization of the container. Pressure vessels may contain flammable, explosive, corrosive, or toxic substances, requiring careful attention during...

Sep 14, 2020 Industrial News
How to Determine Temperature in Pressure Vessel Process Parameters?

How to Determine Temperature in Pressure Vessel Process Parameters?

1. Operational Temperature: It is the temperature of the working medium as measured by a temperature instrument during the pressure vessel's operation. 2. Design Temperature: Unlike the temperature the internal medium may reach, the design temperature of a pressure vessel refers to the metal temperature of the pressure component under the designated design pressure during normal operation. This value should not be lower than the maximum metal temperature the component may reach. For pressure...

Sep 07, 2020 Industrial News
Defining Pressure in the Process Parameters of a Pressure Vessel

Defining Pressure in the Process Parameters of a Pressure Vessel

In the specifications or standards for various pressure vessels, terms such as working pressure, maximum pressure, and design pressure are frequently encountered. Here are their definitions: (1) Operating Pressure: Operating pressure, also known as working pressure, denotes the pressure at the top of the container during regular process operations, excluding hydrostatic pressure. (2) Maximum Working Pressure: This refers to the highest pressure that the top of the vessel may experience during process...

Aug 31, 2020 Industrial News
What Are the Primary Process Parameters of the Container?

What Are the Primary Process Parameters of the Container?

The technological parameters for pressure vessels are established based on production technology requirements, serving as the primary foundation for pressure vessel design and safe operation. Key technological parameters include pressure, temperature, and the nature of the medium.

Aug 31, 2020 Industrial News
What Steels Are Commonly Utilized in Pressure Vessel Construction?

What Steels Are Commonly Utilized in Pressure Vessel Construction?

(1) Carbon Steel: Carbon steel refers to the iron-carbon alloy containing less than 2.06% carbon. It possesses suitable strength, plasticity, good process performance, and cost-effectiveness, making it widely employed for manufacturing general medium and low-pressure vessels. Commonly used low carbon steels include the Q235 series (Q235A•F, Q235A, Q235B, and Q235C) and Q245R, which is a type of boiler steel. Q245R exhibits similar performance to high-quality carbon steel with lower sulfur content,...

Aug 24, 2020 Industrial News
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