-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
1, centrifugal pump selection and installation of centrifugal pump should be in accordance with the transport of liquid to choose, and check the required performance, analysis of suction, discharge conditions, is intermittent operation or continuous operation.
centrifugal pumps should normally operate under or near the pressure and flow conditions specified by the manufacturer.
Pump installation should carry out the following review: (1) the size of the foundation, location, height should meet the design requirements, the foot bolts must be properly and correctly fixed in the concrete foundation, the machine should not be missing parts, damage or corrosion, etc. ; And gasket materials; (3) the pump to find flat, find the right job should comply with the provisions of the equipment technical documents, if there is no provisions, should comply with the current national standards "mechanical equipment installation engineering construction and acceptance of the general norms", (4) all the pipes connected to the pump body, pipe installation and oil pipe cleaning requirements should comply with the relevant national standards.
2. The test operation of the pump for the use of centrifugal pumps shall meet the following requirements: (1) the steering of the drive should be the same as that of the pump; Safety protection devices should be sensitive, accurate and reliable; (6) the cranber should be flexible and free of anomalies; (7) the high temperature pump should be preheated before the test run, the temperature should rise evenly, the temperature rise per hour should not be greater than 500 degrees C; the temperature difference between the surface of the pump body and the process pipe with the working medium import should not be greater than 4090; (8) set up to eliminate the effect of temperature rise connection device, set the bypass connection device to provide cooling water.
centrifugal pump operation should pay attention to the following points: (1) do not allow waterless operation, do not adjust the suction port to reduce displacement, prohibit operation at too low flow; To replace the filler box with new fillers, (3) to ensure that the mechanical seal has a fully flushed water flow, water-cooled bearings do not use excessive water flow, (4) lubricants do not use too much, (5) according to the recommended cycle of inspection.
records are established, including operating hours, filling adjustments and replacements, adding lubricants and other maintenance measures and times.
pumping and discharge pressure, flow, input power, lotion and bearing temperature and vibration should be measured regularly.