Installation, Maintenance, and Operation of HAD20B Automatic Compressed Air Condensate Drainer
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Introduction to the features of installation, maintenance, and operation of the HAD20B automatic compressed air condensate drain: The HAD20B automatic compressed air condensate drain differs in structure from traditional mechanical automatic drains; it operates on a continuous dripping principle. The housing is made of aluminum alloy die-casting, with a spray-coated surface that cures over time; its inner and outer walls are resistant to corrosion by the synthetic lubricants used in air compressors. This product operates reliably, is noise-free, has no loss of compressed air, and its outlet openings are not prone to clogging, making it the ideal choice for waste discharge accessories in compressed air systems. Principle and Performance: The HAD20B is an automatic drain device made of die-cast aluminum casing, equipped with a stainless steel float-based drainage system. The drain opening closes when the drainage buoyancy is less than the weight of the drainage buoy and the pressure exerted by the compressed air ； As the buoyancy increases, the drain float rises and the drain opening opens ； When the condensate water decreases, the drain valve closes again, and this cycle repeats. Technical Parameters: Model, Inlet Port, Outlet Port, Maximum Operating Pressure, Maximum Operating Temperature, Maximum Discharge Capacity. HAD-20B: 1/2 BSP, 1/2 BSP, 20 Bar (kg/cm2), 100℃, 500 L/h. Installation Requirements: Before installing the HAD20B drain, use compressed air to thoroughly remove any impurities from the pipes. During installation, this automatic drain must be placed below the device’s drainage mechanism; otherwise, condensation water will accumulate, affecting the drainage performance. The HAD20B drain can be used as an “automatic outlet,” or guided into a ditch using a pipe. Maintenance: Inspect the HAD20B drainer once a week. Operation method: Turn open the manual drain valve (see diagram) to allow all the water in the drainer to flow out, until compressed air from the equipment enters the cylinder inside the ball for a few seconds, after which close the manual valve. If more than 0.5 liters of water are discharged, it indicates that the automatic drain is clogged, and it must be thoroughly cleaned. The automatic drain must be taken out each year to clean its internal components. When cleaning, soap and water or dishwashing liquid can be used; avoid using solvents to prevent damage to rubber components. Safety Notes: When installing and using the HAD20B, it is important to be careful not to exceed the pressure and temperature values specified on the nameplate. Precautions for maintenance and repair: Before each repair, please check and ensure that the float drain system has good drainage performance ； When disassembling and cleaning the components, make sure there are no substances in the drain that could contaminate the environment with gases. For repairs and part replacements, please use original parts. This post was last edited by lxq700918 on 2009-2-23 18:16.]
Notice to all work sections and positions: Lubricant should be applied to all operating equipment in the urea plant, with the addition and replacement of lubricant carried out in accordance with the lubrication requirements specific to each piece of equipment. CO2 compressors: Oil for fully loss systems, L-TSA46#. Oil for motor bearing housings: Oil for fully loss systems, L-AN68#. Oil for the main lubrication stations: Light oil for medium-load air compressors, L-DAB150#. Oil for injectors. II. High-pressure pumps, centrifugal pumps: Oil for fully loss systems, L-TSA46#. Crankcase oils for methane pumps, ammonia pumps, and high-pressure flushing water pumps: Oil for fully loss systems, L-TSA46#. Bearing housings for all centrifugal pumps, as well as those of centrifugal boiler blowers, etc. III. Air compressors: Special oil for screw air compressors – Corena PAO series R46 air compressor oil. IV. Various types of reducers: Medium-load gear oil L-CKC220, used in reducers for cooling tower fans, pump A, ammonia pumps, high-pressure cleaning pumps, floor drain mixers, bucket elevators, belt conveyors, etc. V. Hydraulic couplers of hoists: Turbine oil, L-TSA32 – oil specifically designed for hydraulic couplers. VI. Others: Lithium-based greases, calcium-based greases grades 2# and 3#, suitable for applications that require dry-lubrication, such as the bearings of circulation water pumps and the bearings at the bottom of hoists. Molybdenum disulfide grease
Equipment and responsibilities for various units involved in urea production 1. Circulating water: Equipment includes cooling towers, process water pumps, chemical dosing systems, strainers, as well as related pipelines. Responsibilities: (1) To supply the urea production plant with a continuous supply of sufficient amounts of high-quality circulating water for cooling purposes； (2) Responsible for the operational inspection and daily maintenance of the equipment ； (3) Responsible for the daily maintenance and management of the tanks, vessels, valves, and pipelines associated with this system. 2. Air compression station equipment: air compressors, dryers, factory air storage tanks, instrument air storage tanks. Tasks: (1) Supply qualified factory air and instrument air to the entire plant ； (2) Responsible for the operational inspection and daily maintenance of the equipment ； (3) Responsible for the daily maintenance and management of the tanks, vessels, valves, and pipelines associated with this system. 3. Nitrogen production station equipment: compressors, refrigerated dryers, compressed air purification units, adsorption towers, nitrogen buffer tanks, nitrogen storage tanks. Tasks: (1) Supply qualified nitrogen to the entire plant; (2) Be responsible for the operation inspection and routine maintenance of the equipment ； (3) Responsible for the daily maintenance and management of the tanks, vessels, valves, and pipelines associated with this system. 4. Compressor equipment: compressors, desulfurization, and dehydrogenation units. Tasks: (1) Supply qualified CO2 gas to the entire plant ； (2) Responsible for the operational inspection and daily maintenance of the equipment ； (3) Responsible for the daily maintenance and management of the tanks, vessels, valves, and pipelines associated with this system. 5. Control and monitoring equipment: synthesis tower, high-pressure methanol cooler, high-pressure scrubber, stripping tower, distillation tower, flash tank, low-pressure methanol cooler, low-pressure methanol cooler level tank, low-pressure absorption tower, atmospheric pressure absorption tower, desorption tower, hydrolysis tower, reflux cooler, reflux level tank, high-pressure gas holder, medium-pressure gas holder, etc. Control tasks: Using the DCS system to control the synthesis and stripping of urea solutions, as well as the decomposition and recovery of ammonia and carbon dioxide from urine, including the condensate from the hydrolysis-desorption process. Inspection tasks: (1) Maintain the operation of stationary equipment on-site, carry out operational inspections, and perform routine maintenance. (2) Follow the instructions of the supervisor to adjust and manage the on-site process operations. 6. Pump house equipment: ammonia pumps, ammonium hydroxide pumps, high-pressure water pumps, low-pressure water pumps, hydrolysis pumps, desorption pumps, condensate pumps, boiler feed water pumps, flushing water pumps, low-pressure pumps. Tasks: (1) Maintain the operation of the on-site mechanical equipment in the main framework, as well as carry out routine maintenance and inspection tasks. (2) Follow the instructions of the control personnel to adjust the on-site process operation. 7. Evaporation granulation equipment: bucket elevator, flat screen sieve, large particle cooler, crusher, granulator, product cooler, belt, washing fan, fluidization fan, jet fan, cooling fan, formaldehyde tank, washer, starting material bin, flash tank, first-stage evaporation, primary air cooler, urine tank. Task: (1) Evaporate and granulate urine to produce qualified urea products ； (2) Maintain the operation of on-site equipment, and be responsible for the proper maintenance and management of all tanks, valves, pipelines, etc. in this system. 8. Analysis Equipment: Conventional chemical reagents and analytical instruments. Task: To provide accurate analysis data for the operators. 9. Maintenance tasks: Responsible for the maintenance and routine upkeep of all equipment.