High-temperature melt pump is a kind of equipment used for high-temperature melt transportation, which is widely used in chemical production, pharmaceutical, petrochemical and other fields. Its function is to transport the high-temperature melt from the upstream equipment to the downstream equipment, so as to realize the continuous transportation and pressure increase of the high-temperature melt. This article will focus on the function, structure and material of high-temperature melt pumps.
1. The role of high-temperature melt pump.
The main function of the high-temperature melt pump is to transport the high-temperature melt. In chemical production, pharmaceutical, petrochemical and other industries, it is often necessary to transport high-temperature melts from upstream equipment such as reactors, evaporators, and heating furnaces to downstream equipment, such as filter presses, dryers, etc. The high-temperature melt pump can withstand high temperature and high pressure to ensure the continuous and stable delivery of the melt, and at the same time increase the delivery pressure of the melt to meet the process needs.
Second, the structure of the high-temperature melt pump.
The structure of a high-temperature melt pump is usually composed of a pump casing, impeller, bearings, seals, etc.
1.Pump casing: The pump casing is the main component of a high-temperature melt pump, which is usually made of high-temperature, corrosion-resistant materials such as cast steel and cast iron. The inside of the pump casing is provided with a flow channel to guide the flow of the high-temperature melt. Depending on the conveying medium and process requirements, the design of the pump casing will vary.
2.Impeller: The impeller is the core component of the high-temperature melt pump, which is made of high-temperature, corrosion-resistant materials, such as nickel-based alloys, ceramics, etc. The design of the impeller has a direct impact on the delivery capacity and pressure of the high-temperature melt. The shape of the impeller is usually backward or forward-curved, which can be selected according to different process requirements.
3.Bearings: Bearings are an important component of high-temperature melt pumps, used to support impellers and drive shafts. Due to the special properties of high-temperature melts, bearings must have good high temperature resistance and corrosion resistance. Commonly used bearing materials are copper-based alloys, stainless steel, etc.
4.Seals: Seals are used to prevent leakage of high-temperature melts and are usually made of high-temperature, corrosion-resistant materials such as graphite, ceramics, etc. Seals are designed to take into account the temperature and pressure of the high-temperature melt, as well as the corrosive nature of the medium. Proper seal design can extend the service life of high-temperature melt pumps.
3. The material of the high-temperature melt pump.
Due to the special properties of high-temperature melts, the materials of high-temperature melt pumps must have good high temperature resistance and corrosion resistance. Commonly used materials include cast steel, cast iron, stainless steel, nickel-based alloys, etc. These materials are able to withstand high temperatures and pressures, and have good mechanical and corrosion resistance, which can guarantee the normal operation and long service life of high-temperature melt pumps.
In short, the high-temperature melt pump is an important conveying equipment, which is used to achieve continuous and stable transportation and pressure increase of high-temperature melt. Understanding the function, construction, and material of a high-temperature melt pump can help you better select and use the equipment to meet the needs of different processes. With the continuous progress of science and technology, the performance and reliability of high-temperature melt pumps will be further improved, providing strong support for the development of chemical production, pharmaceutical, petrochemical and other fields.