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Steam reciprocating pump operation method

2009-02-27View Original

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Steam reciprocating pump operation method 8.2.1. Daily operation and maintenance 8.2.1.1 .Keep the pump body clean and hygienic. 8.2.1.2 .Regularly check a) whether the flow, pressure, and number of reciprocations are normal, and whether there is any noise. b) Oil filling condition and liquid level of the oil injector. c) Whether any parts are loose or fallen off. d) Whether the packing is leaking oil. e) Whether cooling water drainage is normal. 8.2.1.3 .Regularly add enough qualified cylinder oil to the oil injector, and keep the liquid level between 1/2 and 2/3. 8.2.1.4 .Add No. 30 mechanical lubricating oil to the oil injection point every four hours. 8.2.1.5 .If packing leakage is found, report to the squad leader in time and contact for maintenance. 8.2.2. Starting and stopping the pump 8.2.2.1 .Preparation before start-up a) Clean the area around the pump. b) Check whether the pump pipeline and components are intact. c) Install a qualified pressure gauge, and the pressure gauge should be filled with isolation fluid. d) Fill the oiler with enough qualified cylinder oil, shake the handle to add oil and check the condition of each oil injection point. e) Use the dehydration valve to remove the water stored in the main steam and exhaust steam pipelines. f) Open the exhaust steam valve and dehydrate and warm the cylinder from the bottom of the cylinder. g) The hot oil pump supplies cooling water to the upper packing. h) Inject lubricating oil (grease) into each oil injection point. 8.2.2.2 .Open the pump a) Open the oil cylinder inlet and outlet valve and the pressure gauge valve b) Open the main steam valve slightly and continue to warm the cylinder c) After the cylinder is warmed normally, close the dehydration valve at the bottom of the cylinder d) Gradually open the main steam valve and start the pump. e) After starting, pay attention to the outlet pressure of the pump and the operation of the pump. 8.2.2.3 .Stop the pump a) Close the steam pump inlet valve. b) Close the steam pump exhaust valve. c) Open the drain valve at the bottom of the cylinder to drain out the water vapor. d) Close the cylinder inlet and outlet valve. e) Turn off the cooling water. f) Before stopping the heavy oil pump, close the cylinder inlet valve, control the number of reciprocations of the steam pump, and drain the oil stored in the cylinder before stopping the pump. 8.2.3. Failure causes and solutions 8.2.3.1 .Causes and solutions for why the pump does not operate after the main steam valve is opened. a) Cause (1) The main steam valve does not open or the valve core falls off. (2) The water in the cylinder has not been drained. (3) The cylinder outlet valve is not open or the pipe is blocked. (4) The outlet pressure of the oil cylinder is too high or the oil in the cylinder solidifies. (5) The steam distribution valve is in the middle position and the steam passage is blocked. (6) If the circle increases, the cylinder will fall. (7) Wrong steam is wrong. (8) The piston rod packing is pressed too tightly. (9) The exhaust steam pressure is too high. b) Treatment (1) Open the steam exhaust valve or repair the valve. (2) Reheat. (3) Open the outlet valve or processing line. (4) Reduce the outlet pressure or heat the oil cylinder. (5) Close the steam inlet valve and use a crowbar to move the piston rod to move the steam distribution valve away from the middle position. (6) Contact a fitter for processing. (7) Contact a fitter for processing. (8) Loosen the packing gland. (9) Reduce exhaust steam pressure. 8.2.3.2 .Causes and solutions for abnormal uptake a) Cause (1) The inlet valve is not fully opened. (2) There is water in the cylinder causing vapor lock. (3) Walu fails. (4) The inlet filter is clogged. (5) The expansion ring is damaged. (6) The liquid level in the tower is low or the amount is abnormal. b) Treatment (1) Fully open the inlet valve. (2) Contact the monitor. (3) Contact the fitter. (4) Clean or change the bypass. (5) Contact the fitter. (6) Raise the liquid level and check the cause. 8.2.3.3 .Causes and solutions for too small flow rate a) Reasons (1) Leakage of tiles. (2) The stroke is too small. (3) The rising circle fails. (4) The outlet pressure is too high. (5) The exhaust steam pressure is too high. b) Treatment (1) Contact a fitter for treatment. (2) Contact the fitter. (3) Contact the fitter. (4) Reduce pressure. (5) Reduce pressure. 8.2.3.4 .Causes and solutions for abnormal noise a) Causes and solutions for cylinder collision (1) Reasons: The steam distribution valve is not adjusted properly. (2) Processing: Contact a fitter. b) Causes and solutions of cylinder collision (1) Cause ① Sudden evacuation. ② The number of reciprocations is too fast. ③ Stroke too long. ④ The exhaust steam pressure fluctuates too much. (2) Solution ⑤ Turn off the main steam valve and notify the squad leader. ⑥ Smooth operating conditions. ⑦ Contact a fitter. ⑧ Adjust exhaust steam pressure. c) Causes and solutions for squeaking noises from cylinders or steam components (1) Causes: Poor lubrication or incorrect steam parts are skewed and stuck. (2) Processing: Contact a fitter. d) Causes and solutions for metal impact sounds when the pump is running (1) Reasons: The fitting point between the piston and the piston rod is disconnected or the piston rod and the coupling pin are loose. (2) Processing: Contact a fitter. e) Reasons and solutions for the knocking sound of Walu (1) Cause: The spring is loose or broken. (2) Contact the fitter. f) Reasons and solutions for the impact sound of condensate water in the cylinder (1) Reasons: There is condensation water in the cylinder. (2) Processing: Put the water in the clean tank. g) Reasons and solutions for the impact sound of misfired steam (1) Cause: The expansion ring of the wrong steam valve is too tight or the wrong steam valve is deformed. (2) Processing: Contact a fitter to handle it.

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