Working Principle
The working principle of the jacketed heat - retaining rotor pump is based on the basic principle of the rotor pump. It relies on two synchronously moving rotors, which are driven by a pair of external synchronous gearboxes. The rotors rotate synchronously in opposite directions under the drive of the drive shaft, thus creating a relatively high vacuum degree and discharge pressure. The two rotors divide the rotor chamber into several small spaces. A suction force is generated at the inlet to draw in materials, and they operate in a specific sequence, so that the medium is transported from the inlet to the outlet. This cycle repeats to achieve continuous material transportation. The jacket is a double - layer structure set on parts such as the pump head, housing, and seal cavity. When heating is required, various heat carriers such as hot steam and heat - conducting oil can be introduced into the jacket cavity for heat preservation. When cooling is needed, the constant temperature of the pump body can be maintained by various coolants.
Application Scenarios
Food and Beverage Industry: It can be used to transport chocolate paste, honey, animal fats, vegetable oils, etc., preventing these materials from solidifying or thickening due to temperature changes during transportation, which could affect the transportation effect and product quality.
Chemical Industry: It is suitable for transporting chemical raw materials such as high - viscosity resins, polyurethanes, and polymers, ensuring the fluidity of these media at a certain temperature for easy transportation and processing during the production process.
Pharmaceutical Industry: It can be used to transport pharmaceutical products such as extracts, emulsions, and pill pastes, ensuring the temperature stability of drugs during transportation and meeting the hygiene and quality requirements of pharmaceutical production.
Cosmetics Industry: The jacketed heat - retaining rotor pump is also commonly used to transport cosmetic raw materials such as facial creams and detergents, preventing the materials from solidifying at low temperatures or affecting their physical properties.
Other Industries: In industries such as petrochemical, coatings, oils and fats, and dyes, the jacketed heat - retaining rotor pump plays an important role in the transportation of high - viscosity media that need to maintain a specific temperature.
Advantages
Good Heat - retaining Effect: The jacket is cast integrally with the pump body, which can effectively avoid problems caused by welded jackets, resulting in good heat - retaining performance and reducing heat loss.
Stable Transportation: It has the general characteristics of a rotor pump, transporting liquids smoothly, with no pulsation, low vibration, and low noise.
Strong Self - priming Ability: It can quickly suck materials from the storage container into the pump and transport them, reducing additional auxiliary equipment and operation procedures.
Wide Adaptability: According to the properties of the transported medium and process requirements, different materials and sealing forms can be selected. It can transport a variety of corrosive and high - viscosity media. The applicable medium temperature is generally between - 10°C and 200°C, and the applicable medium viscosity is between 1.0 cSt and 300,000 cSt.
Easy Maintenance: In some jacketed heat - retaining rotor pumps, the bearing cavity is enlarged, and the bearing part becomes an integral component. Seal repair, replacement, and upgrade are relatively convenient, and the gear clearance can be adjusted to meet the process requirements under different viscosities.
