Teikoku canned  Pumps: Basic Model Structural Features and Application Industries

(10 pages read)
The basic model (F series) of Dalian Imperial Shielded Pumps is the cornerstone of its product family, designed specifically for conveying clean, particulate-free, and non-vaporizing media. With its completely leak-free characteristics and excellent adaptability to conventional operating conditions, it has become an ideal choice for standard configurations in many industries.

🔧 Structural Features of the Basic Model
The basic model's ingenious structural design perfectly embodies the core concept of "leak-free." The simplified diagram below can help you intuitively understand its internal structure:

Specifically, it has the following key features:

Integration and Static Seal: The pump impeller and motor rotor are fixed on the same shaft, sealed as a whole within a pressure vessel. The entire device has only a few static sealing points, completely eliminating the rotating shaft seal of traditional centrifugal pumps and preventing leakage at its source.

Shielding Sleeve Isolation: The stator and rotor of the motor are sealed and welded to the inside and outside with thin-walled non-magnetic metal (i.e., "shielding sleeves"). This completely isolates the motor windings and core from the transported medium, preventing both corrosion and contamination.

Self-lubricating medium: The rotor is entirely immersed in the transported liquid, and the two sliding bearings at both ends are also lubricated and cooled by the medium. During operation, some of the medium enters the motor cavity through a circulation path, carrying away heat and lubricating the bearings.

💡 Core Advantages and Application Limitations
Based on the above structure, the basic canned motor pump possesses the following irreplaceable advantages, but also has certain application limitations:

✅ Core Advantages:

Zero Leakage: The most fundamental advantage, making it the safest choice for transporting flammable, explosive, toxic, corrosive, and valuable liquids.

Compact Structure: The motor and pump are integrated, without couplings or a base, resulting in a small size, light weight, and small footprint, facilitating installation and maintenance.

Low Noise: Without cooling fans and couplings, operation is very quiet, especially suitable for applications with strict noise control requirements.

Suitable for Special Working Conditions: Its sealed structure also makes it ideal for vacuum systems or transporting media that deteriorate upon contact with air.

⚠️ Application Limitations:

High Media Cleanliness Requirements: Since the bearings rely on the media for lubrication, the media must not contain solid particles, otherwise it will severely wear the bearings.

Normal Temperature Range: The standard basic model is suitable for non-crystallizing, non-solidifying media with temperatures below 150℃. For higher or lower temperatures, high-temperature separation type, ultra-heat resistant type, or LNG-specific type should be selected.

🏭 Main Application Industries

Based on the above characteristics, the basic canned motor pump plays a crucial role in many industrial and consumer sectors. An industry report lists "chemical, oil and gas, nuclear power, and air conditioning" as the core application areas for canned motor pumps, and Dalian Empire's products do indeed cover these industries.

Application Areas Typical Scenarios and Uses Key Media/Case Studies

Petrochemical Industry: This is the largest application market for canned motor pumps. The basic model is suitable for conveying various flammable, explosive, and toxic chemical raw materials and solvents. Methanol, caprolactam raw materials, ammonia (R717), etc.

Refrigeration and Air Conditioning: Used in central air conditioning (lithium bromide units), cold storage, and other systems to circulate refrigerant. This is a very mature area of ​​application for Imperial Pumps. Well-known refrigeration companies such as Dalian Sanyo and Jiangsu Shuangliang are among its users. Ammonia shielded pumps are also widely used in cold storage installations.

Aerospace and Nuclear Power: Strategic fields with top-level reliability requirements. The basic model can be used to transport rocket fuel and coolant in nuclear reactors. Examples include the Xichang, Taiyuan, and Jiuquan Satellite Launch Centers, and the Qinshan Nuclear Power Plant.

General Industrial and Civil Use: Chemical, pharmaceutical, light industrial, and textile industries, as well as applications requiring the transport of corrosive liquids or a quiet environment. It can transport various chemical agents and solvents.

In summary, the Dalian Imperial shielded pump basic model, with its absolute leak-free advantage, has become the cornerstone of safety for handling conventional clean media in many industries such as petroleum, chemical, and refrigeration. When dealing with clean, particulate-free flammable, toxic, or valuable media at normal temperatures, it is often the most reliable choice.

You can refer to the following parameter ranges to initially determine if the basic model is suitable for your operating conditions:

Flow rate: Maximum up to 600 m³/h

Head: Maximum up to 450 m

Temperature: Suitable for media from -98℃ to +150℃

What are the specific parameters of your application scenario? For example, what media are being transported, what are the temperature, pressure, and flow rate requirements? Tell me these details, and I can help you further confirm whether the basic model is suitable, or recommend a more suitable model for you.