Screw pump It is a positive displacement pump used to transport high viscosity substances (such as petroleum, chemical industry, food, medicine, paper making, textile and other industries). Its working principle is to use the rotation of twin-screw to make the medium move along the axial direction, and at the same time divide the liquid into several small units to form a continuous flow, so as to achieve fluid transmission.

1、 Oil industry

1. Oil well water injection

The screw pump can send water injection into the well to reduce the surface tension of the well and increase the crude oil production.

2. Product oil filling

Screw pumps can be used to transport petroleum products from storage tanks, pipelines, oil storage tanks to filling equipment.

3. Oil and gas fields

Screw pump can be used to transport natural gas, LPG, LNG, etc.

2、 Chemical industry

1. Pumping fluid with high viscosity and temperature

Many media in the chemical industry, such as polymers, resins, paints, coatings and chemicals, belong to high viscosity fluids. The use of screw pump can achieve the pumping of these high viscosity and high temperature media.

2. Conveying liquid containing particulate matter

In the chemical industry, in some special environments, it is necessary to transport liquids containing fibers, particles, slurries and precipitates. In this case, the screw pump can choose some suitable spiral shapes to transport such media.

3. Chemical treatment

In the process of chemical processing, it is necessary to transport various chemical media. The screw pump has strong corrosion resistance and can adapt to different chemical media, so it can be used in chemical processing.

3、 Food industry

1. Transport high viscosity food

Food materials are usually high viscosity fluids, which are easy to be contaminated and require higher hygiene standards. Screw pump can be used to transport high viscosity liquid, including corn syrup, honey, syrup, jam, lactic acid bacteria, tomato sauce, fruit mixed pulp, vegetable oil, emulsion, etc.

2. Conveying food containing solid particles

The food industry needs to transport food containing solid particles. Screw pump can be used in food processing, processing milk, traditional sauce, tofu milk, bean sprouts, sausage, meat and aquatic products.

4、 Pharmaceutical industry

1. Transport of high viscosity pharmaceutical substances

The pharmaceutical industry needs to use high viscosity media, such as Yi medicine slurry, oral disinfectant, breast homogenate of menopausal women, Ming capsule, paste medicine, etc. Screw pump can be well used in the transportation of these high viscosity materials.

2. Transport pharmaceutical substances with low flow and high viscosity

In some special production processes, it is necessary to transport pharmaceutical substances with low flow and high viscosity. Screw pump can be flexibly applied in this case.

5、 Paper, textile and printing industries

1. Paper industry

Screw pumps are used to transport pulp, pulp paste, paper engine oil, lubricating oil, materials, starch pulp, white water, etc.

2. Textile industry

Fluid conveying is an important part of the textile industry. Screw pumps can be used to transport viscous dyes, mercerizing agents, film forming colloids, liquefied polymers, softeners and anti wrinkle treatment agents.

3. Printing industry

The printing industry needs to transport various pigments, inks and coating materials. Screw pump can be well used in the printing industry.

In a word, screw pump is widely used in petroleum, chemical industry, food, pharmacy, paper making, textile, printing and other fields due to its high efficiency, stability, energy saving and other characteristics. With the continuous progress of science and technology, screw pump will play a more important role and be widely used in more industries.