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fuyangby@126.com
86 15188770013
(1) Design and structural characteristics
Definition or explanation: Refers to the characteristics of the design and overall structure of components such as impellers and pump bodies in sand pumps and ordinary slurry pumps.
Key facts, trends, or latest developments: Ordinary slurry pump impellers are generally open or semi open, with a large number of blades and specialized mixing devices inside the pump body; The impellers of sand pumps are mostly enclosed with fewer blades, and the pump body has a specialized sediment separation structure. Some new pumps place more emphasis on improving efficiency and reducing wear and tear in their design.
Significant debate or differing opinions: There is some controversy over whether an open, semi open, or closed impeller is better. Some believe that an open impeller is more suitable for large particle materials, while others believe that a closed impeller can reduce wear and tear.
Data or example: Ordinary slurry pumps have a large number of blades to accommodate the transportation of larger particle materials; The sand pump has fewer blades to reduce sand wear.
(2) Transport performance
Definition or explanation: including performance in terms of head, flow rate, and conveying capacity for different materials.
Key facts, trends or latest developments: Ordinary slurry pumps have relatively low head and flow rates, but can handle slurry or liquid mixtures containing particulate matter; The sand pump has a high head and flow rate, mainly used for extracting sand from water bodies. Some advanced pumps can improve the head and flow rate while ensuring the stability of transportation.
Significant debate or differing opinions: There are different opinions on whether to choose a high head, low flow or low head, high flow pump under certain operating conditions.
Data or example: The mixed flow rate of a small submersible sand pump can reach 2000 cubic meters per hour, and the horizontal delivery can reach one kilometer; The concentration of slurry transported by ordinary slurry pump can reach 60%.
(3) Wear resistance and corrosion resistance performance
Definition or interpretation: Refers to the ability of the flow passage components of a pump to resist wear and corrosion when transporting particles or corrosive substances.
Key facts, trends or latest developments: The impeller and pump body design of ordinary slurry pumps pay more attention to wear resistance and corrosion resistance; The wear resistance of sand pumps is relatively poor. Nowadays, many pump overcurrent components are made of high chromium alloys and other materials to improve wear resistance and corrosion resistance.
Significant debate or different viewpoints: There is controversy over the wear and corrosion resistance of different materials under different working conditions, such as the applicability of high chromium alloys in certain highly corrosive environments.
Data or example: All the overcurrent components of the long rod vertical slurry pump are made of high chromium alloy, which cannot be pulled by a small steel saw blade; The overcurrent components of the small submersible sand pump are made of high chromium alloy Cr26 material, with minimal wear.
(4) Installation and operation convenience
Definition or Explanation: Refers to the installation method of the pump, the required supporting equipment, and the difficulty level of operation.
Key facts, trends or latest developments: Ordinary slurry pumps usually require specialized mixing devices and sedimentation tanks; Sand pumping pumps are usually installed directly on the bottom of the water or on dams, and the range and depth of sand pumping are controlled by adjusting the position and angle of the pump. Some new pumps are easier to install and operate.
Significant debate or differing opinions: There are different views on whether auxiliary devices are needed. Some believe that auxiliary devices can improve pump performance, while others believe that they will increase costs and operational difficulty.
Data or examples: Ordinary slurry pumps equipped with mixing devices and sedimentation tanks increase the complexity of installation; The sand pump is directly installed on the bottom of the water or on the dam, and the operation is relatively flexible.
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