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Beverage pump installation, maintenance and improvement
With the increasingly fierce market competition, quality and reduce consumption, high yield and high efficiency has become an important goal of production and management of enterprises. The installation and maintenance of various types of beverage pumps as the source of pipeline transportation have become the key factors that affect the efficiency of the entire line. Therefore, a comprehensive understanding of the pump installation and maintenance, for the stability of production efficiency has an extremely important role. Following the installation and maintenance of beverage pumps and local improvements do briefly explain. (7) For the vertical installation of the pump, there must be a seal leakage discharge point, when there is a leak, to promptly check the mechanical seal and replace if necessary; (8) adjust the outlet valve to ensure the pump operating point, to prevent overload; (9) Do not close the valve to run the pump for more than 30 seconds; (10) Under normal conditions of use, 15,000 hours to 20,000 hours to replace the bearing operation; (11) For long-term outdoor use, 5,000 hours of operation shall be replaced Bearings; (12) Lubricate the V-ring for 1,500 hours of operation. Second, the mechanical seal installation and improvement 1, installed in the structure of the beverage pump, mechanical seal is the highest precision and installation requirements of the most sophisticated part. If the mechanical seal is improperly handled during installation, it will affect the service life of the seal and may cause the beverage pump to suddenly leak during operation, thereby affecting the production efficiency of the entire line. Mechanical seal is divided into moving ring and static ring in two parts, the general use of materials for graphite, carburizing resin, tungsten carbide, ceramics and other materials, the operation process is relatively high speed through the static and dynamic ring to complete the static and dynamic ring surface accuracy is very high , Usually to reach 0.8mmRa. Based on the structural and material considerations, check the static and dynamic ring contact surfaces for any damage or cracks prior to the mechanical seal installation, and wipe the surface of the static and dynamic rings with a soft, clean cloth. When installing, first remove the scale and stains on the bottom and side of the static ring installation groove, and then put the static ring into the installation groove smoothly to ensure full contact between the static ring and the bottom of the groove to avoid the axial rocking of the static ring. Pay special attention to keep the surface of the static ring at any time during the cleaning process, and finally move the ring slowly into the ring, gently rotate the ring around and observe the static and dynamic ring surface contact, when the ring is confirmed close contact, the impeller into the lock Tighten the bolt to complete the mechanical seal installation. There are a few points to note when starting the test run: (1) If using a tandem or back-to-back mechanical seal, the seal / irrigant must be kept clear; (2) For back-to-back mechanical seals, Higher than the pump pressure 1.5bar ~ 2bar (internal pressure = system pressure + pump pressure); (3) to adjust the flow rate of sealing / flushing fluid, the temperature is less than 60 ℃ and must not exceed the boiling point, the temperature difference does not exceed 15 ℃; For tandem mechanical seals, unpressurized seals / irrigant should be ensured prior to start-up; (5) Rinsing fluids should be vented directly when solids are contained in the media.