First, the installation of the pump 1, the preparation of the installation (1) Check the pump and the motor, knowing that there is no damage during transportation and handling.
(2) Inspect tools and lifting appliances and check the foundation of the machine.
2. Pump installation sequence (1) When the entire pump arrives at the site, the motor is installed; when the base is leveled, it is not necessary to remove the pump and motor.
(2) level the leveling surface of the pump by installing the pump. After the basic cement has solidified, install the pump on the foundation and check the horizontal condition with a level gauge. If it is uneven, apply the horn to align until the level is reached, then pass the grouting hole to the concrete. Water base and anchor bolt holes.
(3) After the cement is solidified, check if the base and anchor bolts are loose. After the fitting, tighten the nuts of the anchor bolts. Finally, check the level of the entire unit. If it is slightly uneven, use an inclined iron to level it.
(4) The suction and discharge lines of the pump shall have their own brackets, and the weight of the pipeline shall not be allowed to be directly absorbed by the pump.
(5) The direction of rotation of the pump shaft and the motor should be the same; otherwise, when a three-phase asynchronous motor is used as a power, it is sufficient to connect any two of the three lead wires in the swapping position.
(6) When the pump is installed above the liquid level (within the suction range of the pump), the bottom valve at the end of the suction line should be installed, and a filling hole or valve should be provided on the drainage line for irrigation before starting. Liquid use. When the installation position of the pump is lower than the liquid level, install the control valve in the suction line.
(7) The installation height of the pump must be based on the requirement of NPSHr to avoid cavitation.
3. Disassemble the pump (1) Unscrew the oil drain plug on the suspension body, put the lubricating oil, and remove the motor.
(2) Loosen the connecting bolts of the pump body and the bearing body to separate the impeller, the shaft seal body, and the bearing body from the pump body.
(3) Loosen the impeller nut and remove the impeller and the flat piece key.
(4) Take out the shaft sealing body and the sealing part, remove the static ring of the mechanical seal, and remove the packing by removing the packing cover and sealing the packing.
(5) Remove the rotating part of the mechanical seal and the shaft sleeve from the shaft, and remove the sleeve from the packing seal.
(6) Remove the bracket and coupling of the bearing body.
(7) Remove the bearing gland, the rubber ring, the pump shaft and the bearing.
4, pump assembly 4.1, the pump assembly sequence can basically reverse the order of removal. Pay attention to the following points when installing the mechanical seal:
(1) Whether the rubber O-ring is damaged or swells, and if so, it must be replaced.
(2) The surfaces of the moving and stationary rings shall be absolutely clean and coated with a small amount of oil.
4.2, packing seal installation should pay attention to:
(1) The sleeve outer circle jump is not more than 0.05mm.
(2) After the fillers are cut, they are tapped into 45, and according to the size of the shaft, the fillers are placed in a special mold to press and shape before pressing.
(3) The packing is placed in the packing cavity, and the lap joint of each packing is staggered. Before driving, the packing gland needs to be loosened and gradually pressed after being rotated.
Second, the pump maintenance and maintenance (1) Check the pump and pipe and joints have no loose phenomenon. Turn the pump by hand to see if the pump is flexible.
(2) Add bearing lubrication oil to the bearing body. Observe that the oil level should be at the centerline of the oil standard. Lubricating oil should be replaced or supplemented in time.
(3) Unscrew the water diversion plug of the pump and infuse diversion (or lead).
(4) Close the gate valve, outlet pressure gauge and import vacuum gauge of the outlet pipe.
(5) Jog the motor to see if the motor steering is correct.
(6) Start the motor. When the pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After seeing the appropriate pressure, gradually open the gate valve and check the motor load condition.
(7) Try to control the flow rate and lift of the pump within the range indicated on the label to ensure that the pump operates at the highest efficiency point to obtain maximum energy savings.
(8) During the operation of the pump, the bearing temperature must not exceed the ambient temperature 35C and the maximum temperature must not exceed 80C.
(9) If abnormal sound is found in the pump, stop immediately to check the cause.
(10) When the pump is to be stopped, close the gate valve, pressure gauge, and then stop the motor.
(11) In the first month of operation, the pump shall be replaced with oil after 100 hours, and after each 500 hours, oil shall be changed once.
(12) Adjust the packing glands regularly to ensure that the drip chambers are in normal condition (in case of drip leakage).
(13) Regularly inspect the bushings for wear, and replace them if worn.
(14) When the pump is used during the winter season, after the pump is stopped, the lower water release screw plug of the pump body must be unscrewed to remove the medium. Prevent freezing cracks.
(15) When the pump is decommissioned for a long period of time, all the pumps must be disassembled, the water must be wiped off, and the rotating parts and joints should be greased and stored properly.
Third, the pump may be the fault and the solution failure -------- reasons -------- solution can not pump the liquid pumping 1, no perfusion liquid? --------------------------------- Refill the pump, the suction pipe, the outlet pipe, or the pump's flow path is blocked? ----------------- eliminate debris 3, suction pipe or pump is not discharged gas? --------------------- Check the suction line and clean the gas. 4. The suction height exceeds the allowable range. ------------------------- Re-install the pump according to the allowable suction height. 5. The extrusion line is too thin. The tubing loss is too large. ------------------- For the appropriate extrusion line 6, the use of head exceeds the design head? -----------------------Reselect the pump 7, transport hot, volatile media? ----------------------- Reducing the suction process or the use of inverted irrigation equipment 8 , reversed? ------------------------------------- Correct the flow of the steering pump is not enough 1, the bottom valve is too small? ------------------------------------- Change the appropriate pump bottom valve 2 soaked in the suction tube Depth is not enough, there is air suction pump? --------- Increase the immersion depth of the suction pipe 3, suction pipe is too fine or debris plugging? ----------------------- Change suitable pipelines to remove debris 4. Severe wear or severe corrosion of the impeller? ----------------------- Replace the new impeller 5, the seal ring is heavily worn or corroded? ------------------------- Replacement of new seal ring 6, semi-open impeller and pump cover gap too? --------------------- Decrease the clearance 7. How fast does the speed decrease? --------------------------------- Check the current, restore the speed Pump head is not enough 1, the impeller corrosion serious? --------------------------------- Replacement of the new impeller 2, the performance of the pump can not meet the design requirements? ----------------------- For the pump that meets the design requirements 3, insufficient speed? ------------------------------------- Check current, restore speed 4, semi-open impeller and pump Cover gap is too big? --------------------- Decrease the severity of the gap pump vibration 1. Do the pump and the motor shaft be different? ----------------------------- Correction, alignment pump and motor shaft 2, pump shaft bending? ------------------------------------- Remove the straight or replace the new 3, Impeller imbalance? ----------------------------------- Remove the balance pump to find the bearing overheating 1, lubricating oil (fat) does not Or not enough? ----------------------- Add lubricating oil (fat) to the required standard 2, pump and motor shaft misalignment? ----------------------------- Correction, alignment pump and motor shaft 3, bearing damage? ------------------------------------- Replacement of new pump bearing mechanical seal leakage serious 1, spring pressure insufficient? ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————— Worn or scratched? --------------- repair or replace the bad dynamic ring static ring 3, loose screws, so that the spring is out of action? ----------------- Tighten the screw or readjust the spring 4. Is the assembly of the ring seal inclined or corroded? ----------------- Reinstall or replace the pump ring seal 5, static ring assembly skew? --------------------------------- Re-installed pump with static ring 6, shaft sleeve machining accuracy and finish is not enough, impact The axial movement of the moving ring?
-------------------------------------------------- Replacement machining accuracy of the sleeve 7, impurities, foreign bodies or media crystal affect the axial movement of the moving ring or support the dynamic and static ring between the end face?
-------------------------------------------------- Elimination of impurities, foreign matter, and crystallization, thorough cleaning of the packing components. --------------------------------- Tighten the packing gland to the proper level. --------------------------------- Adjust the filling laps, make it staggered at a certain angle not in one direction 3, filler size Not uniform or worn badly? ----------------------- Replacement of the uniform model of the filler 4, the poor quality of the filler is not good sealing? ------------------------- Replace the asbestos filler that meets the requirements 5. Is the bushing worn too much? --------------------------------- Replace the bushing pump motor overheating 1, the use of range (flow, head) exceeds Pump design requirements? ------- According to the series of spectrum selection of the appropriate motor 2, the proportion of medium over the pump configuration motor? --------------------- Configure a suitable pump motor 3, packing gland pressure too tight or mechanical seal spring too tight? ------- Re-adjust the spring compression of the gland or mechanical seal. 4. The quality of the pump assembly is poor. Is there any friction or a misalignment between the motor and the pump shaft? -----Check assembly quality and eliminate assembly failure
(2) Inspect tools and lifting appliances and check the foundation of the machine.
2. Pump installation sequence (1) When the entire pump arrives at the site, the motor is installed; when the base is leveled, it is not necessary to remove the pump and motor.
(2) level the leveling surface of the pump by installing the pump. After the basic cement has solidified, install the pump on the foundation and check the horizontal condition with a level gauge. If it is uneven, apply the horn to align until the level is reached, then pass the grouting hole to the concrete. Water base and anchor bolt holes.
(3) After the cement is solidified, check if the base and anchor bolts are loose. After the fitting, tighten the nuts of the anchor bolts. Finally, check the level of the entire unit. If it is slightly uneven, use an inclined iron to level it.
(4) The suction and discharge lines of the pump shall have their own brackets, and the weight of the pipeline shall not be allowed to be directly absorbed by the pump.
(5) The direction of rotation of the pump shaft and the motor should be the same; otherwise, when a three-phase asynchronous motor is used as a power, it is sufficient to connect any two of the three lead wires in the swapping position.
(6) When the pump is installed above the liquid level (within the suction range of the pump), the bottom valve at the end of the suction line should be installed, and a filling hole or valve should be provided on the drainage line for irrigation before starting. Liquid use. When the installation position of the pump is lower than the liquid level, install the control valve in the suction line.
(7) The installation height of the pump must be based on the requirement of NPSHr to avoid cavitation.
3. Disassemble the pump (1) Unscrew the oil drain plug on the suspension body, put the lubricating oil, and remove the motor.
(2) Loosen the connecting bolts of the pump body and the bearing body to separate the impeller, the shaft seal body, and the bearing body from the pump body.
(3) Loosen the impeller nut and remove the impeller and the flat piece key.
(4) Take out the shaft sealing body and the sealing part, remove the static ring of the mechanical seal, and remove the packing by removing the packing cover and sealing the packing.
(5) Remove the rotating part of the mechanical seal and the shaft sleeve from the shaft, and remove the sleeve from the packing seal.
(6) Remove the bracket and coupling of the bearing body.
(7) Remove the bearing gland, the rubber ring, the pump shaft and the bearing.
4, pump assembly 4.1, the pump assembly sequence can basically reverse the order of removal. Pay attention to the following points when installing the mechanical seal:
(1) Whether the rubber O-ring is damaged or swells, and if so, it must be replaced.
(2) The surfaces of the moving and stationary rings shall be absolutely clean and coated with a small amount of oil.
4.2, packing seal installation should pay attention to:
(1) The sleeve outer circle jump is not more than 0.05mm.
(2) After the fillers are cut, they are tapped into 45, and according to the size of the shaft, the fillers are placed in a special mold to press and shape before pressing.
(3) The packing is placed in the packing cavity, and the lap joint of each packing is staggered. Before driving, the packing gland needs to be loosened and gradually pressed after being rotated.
Second, the pump maintenance and maintenance (1) Check the pump and pipe and joints have no loose phenomenon. Turn the pump by hand to see if the pump is flexible.
(2) Add bearing lubrication oil to the bearing body. Observe that the oil level should be at the centerline of the oil standard. Lubricating oil should be replaced or supplemented in time.
(3) Unscrew the water diversion plug of the pump and infuse diversion (or lead).
(4) Close the gate valve, outlet pressure gauge and import vacuum gauge of the outlet pipe.
(5) Jog the motor to see if the motor steering is correct.
(6) Start the motor. When the pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After seeing the appropriate pressure, gradually open the gate valve and check the motor load condition.
(7) Try to control the flow rate and lift of the pump within the range indicated on the label to ensure that the pump operates at the highest efficiency point to obtain maximum energy savings.
(8) During the operation of the pump, the bearing temperature must not exceed the ambient temperature 35C and the maximum temperature must not exceed 80C.
(9) If abnormal sound is found in the pump, stop immediately to check the cause.
(10) When the pump is to be stopped, close the gate valve, pressure gauge, and then stop the motor.
(11) In the first month of operation, the pump shall be replaced with oil after 100 hours, and after each 500 hours, oil shall be changed once.
(12) Adjust the packing glands regularly to ensure that the drip chambers are in normal condition (in case of drip leakage).
(13) Regularly inspect the bushings for wear, and replace them if worn.
(14) When the pump is used during the winter season, after the pump is stopped, the lower water release screw plug of the pump body must be unscrewed to remove the medium. Prevent freezing cracks.
(15) When the pump is decommissioned for a long period of time, all the pumps must be disassembled, the water must be wiped off, and the rotating parts and joints should be greased and stored properly.
Third, the pump may be the fault and the solution failure -------- reasons -------- solution can not pump the liquid pumping 1, no perfusion liquid? --------------------------------- Refill the pump, the suction pipe, the outlet pipe, or the pump's flow path is blocked? ----------------- eliminate debris 3, suction pipe or pump is not discharged gas? --------------------- Check the suction line and clean the gas. 4. The suction height exceeds the allowable range. ------------------------- Re-install the pump according to the allowable suction height. 5. The extrusion line is too thin. The tubing loss is too large. ------------------- For the appropriate extrusion line 6, the use of head exceeds the design head? -----------------------Reselect the pump 7, transport hot, volatile media? ----------------------- Reducing the suction process or the use of inverted irrigation equipment 8 , reversed? ------------------------------------- Correct the flow of the steering pump is not enough 1, the bottom valve is too small? ------------------------------------- Change the appropriate pump bottom valve 2 soaked in the suction tube Depth is not enough, there is air suction pump? --------- Increase the immersion depth of the suction pipe 3, suction pipe is too fine or debris plugging? ----------------------- Change suitable pipelines to remove debris 4. Severe wear or severe corrosion of the impeller? ----------------------- Replace the new impeller 5, the seal ring is heavily worn or corroded? ------------------------- Replacement of new seal ring 6, semi-open impeller and pump cover gap too? --------------------- Decrease the clearance 7. How fast does the speed decrease? --------------------------------- Check the current, restore the speed Pump head is not enough 1, the impeller corrosion serious? --------------------------------- Replacement of the new impeller 2, the performance of the pump can not meet the design requirements? ----------------------- For the pump that meets the design requirements 3, insufficient speed? ------------------------------------- Check current, restore speed 4, semi-open impeller and pump Cover gap is too big? --------------------- Decrease the severity of the gap pump vibration 1. Do the pump and the motor shaft be different? ----------------------------- Correction, alignment pump and motor shaft 2, pump shaft bending? ------------------------------------- Remove the straight or replace the new 3, Impeller imbalance? ----------------------------------- Remove the balance pump to find the bearing overheating 1, lubricating oil (fat) does not Or not enough? ----------------------- Add lubricating oil (fat) to the required standard 2, pump and motor shaft misalignment? ----------------------------- Correction, alignment pump and motor shaft 3, bearing damage? ------------------------------------- Replacement of new pump bearing mechanical seal leakage serious 1, spring pressure insufficient? ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————— Worn or scratched? --------------- repair or replace the bad dynamic ring static ring 3, loose screws, so that the spring is out of action? ----------------- Tighten the screw or readjust the spring 4. Is the assembly of the ring seal inclined or corroded? ----------------- Reinstall or replace the pump ring seal 5, static ring assembly skew? --------------------------------- Re-installed pump with static ring 6, shaft sleeve machining accuracy and finish is not enough, impact The axial movement of the moving ring?
-------------------------------------------------- Replacement machining accuracy of the sleeve 7, impurities, foreign bodies or media crystal affect the axial movement of the moving ring or support the dynamic and static ring between the end face?
-------------------------------------------------- Elimination of impurities, foreign matter, and crystallization, thorough cleaning of the packing components. --------------------------------- Tighten the packing gland to the proper level. --------------------------------- Adjust the filling laps, make it staggered at a certain angle not in one direction 3, filler size Not uniform or worn badly? ----------------------- Replacement of the uniform model of the filler 4, the poor quality of the filler is not good sealing? ------------------------- Replace the asbestos filler that meets the requirements 5. Is the bushing worn too much? --------------------------------- Replace the bushing pump motor overheating 1, the use of range (flow, head) exceeds Pump design requirements? ------- According to the series of spectrum selection of the appropriate motor 2, the proportion of medium over the pump configuration motor? --------------------- Configure a suitable pump motor 3, packing gland pressure too tight or mechanical seal spring too tight? ------- Re-adjust the spring compression of the gland or mechanical seal. 4. The quality of the pump assembly is poor. Is there any friction or a misalignment between the motor and the pump shaft? -----Check assembly quality and eliminate assembly failure
Application:
Automotive Industry – Engine: Crank Shafts, Oil Seals, Valve Needles, Camshafts, Rocker arm Guides, Water Pumps, Piston Rings, Valves, Expansion Bolts, etc
Automotive Industry – Universal Joint: Bearing Outer Race, Ball screws, Ball Joint Journals, Servo Steering piston & Valves, Toothed Racks, etc
Tool Making Industry: Screw Taps, Thread Rolling Dies, Drill Bushes, Broaches, Clamping Jaws, etc
Turbine Industry: Rotor Shafts, Guide Vanes, Rotor Blades, etc
All Types of CNC Grinding Machines
Form Dressing on Hoffler, Gleason, Niles, Kapp, Samp machines
Cam & Crank Shaft, on Landis, NTC. Junker, Nexus, Newall, Toyoda machines
Diamond Dressing Rolls
Diamond Dressing Rolls,Profile Roller,Bearing Profile Roller,Piston Ring Grinding Roller
Xinxiang SKF machinery Co., Ltd. , http://www.facegrindingmachine.com