Plan 23
Category:Seal Support Systems
Detailed introduction
Core positioning: A single-face seal self-flushing solution specifically designed for hot-water pumps. The medium is guided out of the self-sealing cavity, cooled, and then returned to the sealing face, achieving integrated self-circulation for flushing and cooling without the need for additional medium replenishment.
Core adaptation parameters
✅ Applicable scenario: Dedicated for single-end face seal flushing in hot water pumps ranging from 100 to 250℃.
✅ Typical application: Primary injection pump for electro-desalination in the atmospheric and vacuum distillation unit P1033
Process Principle
A sealed chamber equipped with a built-in pumping ring pumps the medium out, which then flows through a cooler to be cooled down before returning to the sealed chamber, thus completing a closed-loop circulation. Throughout the entire process, no external flushing medium is required.
Core Values
1. Efficient heat dissipation: Quickly removes heat from the sealed cavity, lowers the temperature of the sealing end face, and extends the service life of the sealing assembly.
2. Cost Reduction and Optimization: The circulating cooling design significantly reduces the required cooling area, thereby lowering equipment integration costs.
3. Adaptation and upgrade: Reducing the temperature resistance requirements for auxiliary sealing materials and enhancing compatibility with various operating conditions.
Standard Operating Procedure
1. Prioritize the use of sealed coolers to ensure the cooling system is ready in advance.
2. The flushing liquid flows automatically with the pump’s start and stop. After the pump is started, verify that the flushing liquid and cooling water are flowing smoothly.
3. Monitor the temperature of the medium after cooling to ensure that no overheating occurs.
4. Check the leakage at the sealing areas and the temperature rise to ensure normal operation.
Daily Maintenance Essentials
⚠️ Regularly inspect the cooling effect of the cooler, promptly remove accumulated scale, and troubleshoot any malfunctions to prevent cooling failure from compromising sealing performance.
Use parameters
Scheme Description: This scheme uses a hydrocyclone separator to separate the fluid at the pump outlet. The clean liquid portion is used for flushing the mechanical seal, while the separated solids are returned to the pump inlet.
Keywords：Plan 23
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Seal Support Systems
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Plan 23
Core positioning: A single-face seal self-flushing solution specifically designed for hot-water pumps. The medium is guided out of the self-sealing cavity, cooled, and then returned to the sealing face, achieving integrated self-circulation for flushing and cooling without the need for additional medium replenishment.
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Plan 53A
Reason for adoption: Isolate the process fluid. Zero discharge of the process fluid.
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Plan 53B
Reason for adoption: Isolation of process liquids; zero discharge of process fluids; pressure exceeding the 53A scheme.
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Plan 53C
Reason for adoption: Isolate the process fluid. Achieve zero discharge of the process fluid. Pressure exceeds the 53A design specification. Dynamically monitor system pressure.
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