Chemical delivery hose is an indispensable and important component in modern industry, which is widely used in petroleum, chemical, pharmaceutical, food and other fields. As a special conveying pipeline, the chemical conveying hose has excellent corrosion resistance, high pressure resistance, high temperature resistance and other characteristics, which can effectively protect the substances in the pipeline from the external environment during transportation. This article will focus on the characteristics, classification, use, and precautions for the use of chemical transfer hoses.
1. Characteristics of chemical delivery hoses.
1.High corrosion resistance: Since the material being conveyed is often highly corrosive, the hose must have excellent corrosion resistance. Normally, the conveying hose is made of rubber materials with strong corrosion resistance, such as nitrile rubber, polyurethane rubber, etc., which can effectively resist the erosion of acids, alkalis, salts and other substances to ensure the normal use of the pipeline.
2.High pressure resistance: During the conveying process, the pipe needs to withstand a certain pressure, so the hose must have high pressure resistance. In general, the transfer hose has strong pressure resistance and can withstand high pressures, so that the material will not leak during transportation.
3.High temperature resistance: Some substances need to be transported in a high-temperature environment, which requires the hose to have high temperature resistance. At present, most of the conveying hoses on the market are made of rubber materials with good high temperature resistance, which can maintain good performance in high temperature environments.
4.Easy installation: Compared with metal pipes, the conveying hose is lighter in weight and easy to install, which can effectively reduce the installation cost. At the same time, the hose has a small bending radius, which can better adapt to the requirements of the spatial layout.
5.Long service life: Because the transfer hose is made of corrosion-resistant, high-temperature resistant rubber materials, it has a long service life and can meet the needs of industrial production.
2. Classification of chemical delivery hoses.
Depending on the classification criteria, there are various types of hoses. According to the material, it can be divided into natural rubber conveying hose, synthetic rubber conveying hose, cloth conveying hose, etc.;According to the structure, it can be divided into non-skeleton conveying hose and skeleton conveying hoseAccording to the use, it can be divided into ordinary conveying hose and special purpose conveying hose, and the special-purpose conveying hose includes explosion-resistant pressure conveying hose, high-temperature resistant conveying hose, acid and alkali resistant conveying hose, etc.
3. The use of chemical delivery hoses.
1.Petroleum industry: In the petroleum industry, conveying hoses are widely used in the transportation of oil, natural gas and other substances. Since petroleum is highly corrosive, it is necessary to use a conveying hose made of rubber material with high corrosion resistance. At the same time, since petroleum is prone to static electricity, some special-purpose petroleum hoses also need to have anti-static functions.
2.Chemical industry: In the chemical industry, various corrosive substances such as acids, alkalis, and salts need to be transported and distributed. In this case, it is necessary to use a conveying hose with strong corrosion resistance. At the same time, in order to prevent accidental leakage and accidents, chemical conveying hoses need to have good sealing performance and compressive performance.
3.Pharmaceutical industry: In the pharmaceutical industry, the packaging and transportation requirements for pharmaceuticals are very strict. As a special piping element, the conveying hose is widely used in the filling, packaging and transportation of pharmaceutical products. Since pharmaceutical products are often corrosive, pharmaceutical delivery hoses need to have good corrosion resistance and hygienic properties.
4.Food industry: In the food industry, in order to ensure the hygiene and safety of food, it is usually necessary to use conveying hoses made of non-toxic and odorless materials for the transportation and distribution of food. At the same time, because food has a certain corrosiveness, food conveying hoses need to have strong corrosion resistance and sealing performance.
4. Precautions for use.
1.Check before use: Before use, carefully check whether the appearance quality, inner wall condition and size specifications of the delivery hose meet the requirements. If an abnormality is found, it should be dealt with or replaced in time. At the same time, it should be checked whether the connected parts are tightened and whether the seal is good.
2.Specifications should be followed during installation: Relevant norms and standards should be followed during installation. Connectors and fasteners should be installed correctly as requiredExcessive bending or twisting of the hose should be avoidedIt should be ensured that the pipeline is well supported and not affected by external forces, etc.
3.Caution should be exercised: Avoid starting or stopping the conveying equipment abruptly during operation to avoid damage to the conveying hose due to excessive pressure or tension. At the same time, the wear and tear of the conveying hose and the condition of the inner wall should be checked regularly, and replaced or repaired in time.
4.Regular inspection during maintenance: The delivery hose should be regularly inspected and maintained to maintain its good use condition and service life. Check whether the pipe connections are tightened and sealed well;Check whether the pipe support is firm;The pipes should be inspected for wear or aging. If an abnormal situation is found, it should be dealt with or replaced in time to ensure safe and reliable operation.