Pump ZJQ with built-in mixer, submersible sand slurry pump for engineering wastewater, complete accessories available, supports customization.

Basic Structure: The fundamental construction of the centrifugal pump consists of six main components: impeller, pump housing, pump shaft, bearings, sealing ring, and stuffing box.

Impeller

The impeller is a critical component of the centrifugal pump, featuring high speed and strong power. The blades on the impeller play a major role. The impeller must pass a static balance test before assembly. The inner and outer surfaces of the impeller must be smooth to minimize frictional losses in water flow.

Pump shaft

The shaft of the pump serves to connect the coupling and the motor, transferring the motor's torque to the impeller, thus it is the main component for transmitting mechanical energy.

Pipe centrifugal pump bearing

This is a component that fits onto the pump shaft to support it, available in two types: rolling bearings and sliding bearings. Rolling bearings use cow oil as the lubricant, and the oil should be added appropriately, generally 2/3 to 3/4 of the volume: too much will cause heat, and too little will produce noise and heat! Sliding bearings use transparent oil as the lubricant, adding oil up to the oil level line. Too much oil will leak along the pump shaft and cause waste, and too little will overheat the bearing, potentially leading to accidents! During the operation of the water pump, the bearing temperature usually runs around 60 degrees with an average of 85 degrees. If it's higher, investigate the cause (such as impurities, oil quality turning black, or water ingress) and handle it promptly!

Sealing Ring

Also known as a leak-reducing ring. An excessive gap between the impeller inlet and the pump housing allows high-pressure water within the pump to flow into the low-pressure area through this gap, affecting the pump's flow rate and efficiency! A too small gap can cause friction and wear between the impeller and the pump housing. To increase backflow resistance, reduce internal leakage, and prolong the service life of the impeller and pump housing, a sealing ring is installed at the junction of the inner edge of the pump housing and the outer edge of the impeller. The sealed gap should be maintained between 0.25 to 1.10 mm.

Filling Tube

Mainly composed of packing, water seal rings, packing cylinder, packing cover, and water seal tube. The function of the packing box is primarily to seal the gap between the pump casing and the pump shaft, preventing water inside the pump from flowing out and external air from entering the pump. Always maintain a vacuum inside the pump! When friction between the pump shaft and packing generates heat, the water seal tube channels water into the water seal ring to cool the packing! To ensure the normal operation of the pump. Therefore, during the routine inspection of the pump, special attention should be given to the packing box! It is necessary to replace the packing after approximately 600 hours of operation.

Application

Vertical hot water pumps are suitable for metallurgy, chemical industry, textile, wood processing, papermaking, as well as for boiler high-temperature hot water pressure boosting circulation supply in restaurants, bathrooms, hotels, and urban housing heating circulation, with operating temperatures below 120°C.

2. Vertical high-temperature centrifugal pumps are used for: energy, metallurgy, chemical industry, textile, papermaking, as well as for boiler high-temperature hot water boosting circulation in restaurants, bathrooms, hotels, etc., and for city housing heating circulation pipeline pumps, with operating temperatures below 240°C.

3. Vertical PipelineChemical PumpFor conveying liquids without solid particles, corrosive, and with a viscosity similar to water, suitable for the petrochemical, chemical, metallurgy, power, papermaking, food, and synthetic fiber industries, operating temperature range is -20℃ to 120℃.

Installation Notice

(1) The base surface for installation must be flat, clean, and capable of supporting the corresponding load; (2) Anchor bolts must be used at the points requiring fixation.

(3) For vertically mounted pumps, the foot bolts must be of sufficient strength.

(4) If vertically installed, the motor must be above the pump.

(5) When mounted on the wall, ensure proper alignment and centering.

Product Features

1. Hydraulic Model: Performance.

2. Easy Installation and Maintenance: Pipe-style installation allows for进出口 to be mounted like valves at any position and direction along the pipeline, making installation and maintenance extremely convenient.

3. Aesthetically Pleasing: Constructed with a stainless steel exterior, offering an attractive appearance.

4. Lower operating and maintenance costs: Utilizing mechanical seals, with no leakage, long service life, low failure rate, and reduced operating and maintenance expenses.

5. Noise Reduction: Hydraulics component design with excellent flow performance, significantly reducing flow noise.

6. Vertical structure with minimal footprint.