Resultados e interpretación de las grabaciones obtenidas en 2012

The pump consists of a base and a pump head. The pump body and outer sleeve are fixed between the base and the pump head by means of stay bolts. The base has inline suction and discharge ports. The pump has a free maintenance mechanical shaft seal with dimensions to DIN 24960. The pumps should be checked regularly for air that may be trapped in the upper chamber of the pump. In normal operation this will not be a problem but in rough seas there could be a considerable amount of air entrapped in the feed water.

General Data CRN8

Sea Water Reverse Osmosis Plant

The pump consists of a base and a pump head. The pump body and outer sleeve are fixed between the base and the pump head by means of stay bolts. The base, the pump head cover as well as vital pump components are made from stainless steel. The base has inline suction and discharge ports. The pump has a free maintenance mechanical shaft seal with dimensions to DIN 24960. The pumps should be checked regularly for air that may be trapped in the upper chamber of the pump. In normal operation this will not be a problem but in rough seas there could be a considerable amount of air entrapped in the feed water.

Sea Water Reverse Osmosis Plant Operation:

Starting of the Pump:

a) Check priming of the pump both for open and closed systems. b) Check the direction of rotation:

- Switch off power

- Make sure that the pump has been filled and vented. - Remove the coupling guard and rotate the pump shaft by

hand to be certain it runs freely. - Verify the electrical connections

- Click the power on and check the rotation direction, to reverse the direction of rotation off the pump.

- Interchange the power leads and check rotation on pump start.

- If rotation is correct, re-install the coupling guard on off position. Reapply the power to start the pump.

c) Check all piping connections, supports and foundation bolting. d) Isolate all the valves for initial startup.

e) Check and record all the voltages and pressures. Readjust, if required.

f) Check all controls for proper operation. If pump is controlled by pressure switch, check and adjust the cut-in & cut-out pressures. Maintenance:

Freeze Protection:

If the pumps are installed in an area where freezing could occur, the pumps and systems should be drained during freezing temperatures to avoid damage. To drain the pumps, close the isolation valves, remove the priming plugs and drain plugs at the base of the pump. Do not replace the plugs until the pumps are to be used again. Always replace the drain plugs with the original or exact replacement. Do not replace with a standard plugs. Internal recirculation will occur, reducing the output pressure and flow. Motor Inspection:

Inspect the motors at regular intervals, approximately every 500 hours of operation or every three months, whichever occurs first. Keep the motors clean and the ventilation openings clear. The following steps should be performed at each inspection: 1. Check that the motor is clean and interior and exterior of the motor is free of dirt,

Sea Water Reverse Osmosis Plant

block motor ventilation. If the motor is not properly ventilated, overheating can occur and cause early motor failure.

2. Use an Ohmmeter (Megger) periodically to ensure that the integrity of the winding insulation has been maintained. Record the Ohmmeter readings. Immediately investigate any significant drop in insulation resistance.

3. Check all electrical connectors to be sure that they are tight. Motor Lubrication:

Electric motors are pre-lubricated at the factory and do not require additional lubrication at start-up. Motors without external grease fittings have sealed bearings that cannot be re-lubricated. Motors with grease fittings should only be lubricated with approved types of grease. Do not over grease the bearings. Over greasing will cause increased bearing heat and can result in bearing/motor failure. Do not mix petroleum grease and silicon grease in bearings.

Lubrication Schedule* NEMA/(IEC) Frame Size Standard Severe Interval Severe Service Interval Extreme Service Interval Weight of grease to add z./(Grams) Volume of grease to add Inch3/Teaspoon

Up through 210 (132) 5500 hrs. 2750 hrs. 550 hrs. 0.30 (8.4) 0.6 (2) Over 210 through 280 (180) 3600 hrs. 1800 hrs. 360 hrs. 0.61 (17.4)* 1.2 (3.9)** Over 280 up through 360 (225) 2200 hrs. 1100 hrs. 220 hrs. 0.81 (23.1)* 1.5 (5.2)** Over 360 (225) 2200 hrs. 1100 hrs. 220 hrs. 2.12 (60.0)* 4.1 (13.4)**

*Optional bearing flange also. **The grease outlet plug MUST be removed before adding new grease.

1. Clean all grease fittings. If the motor does not have grease fittings, the bearing is sealed and cannot be greased externally.

2. If the motors are equipped with a grease outlet plug, remove it. This will allow the old grease to be displaced by the new grease.

3. If the motors are stopped, add the recommended amount of grease. If the motor is to be greased while running, add a slightly greater quantity of grease.

4. For motors equipped with a grease outlet plug, let the motor run for 20 minutes before replacing the plug.

Regular Checkups:

At regular intervals depending on the conditions and time of operation, the following checks should be made:

Sea Water Reverse Osmosis Plant

2. There are no leaks, particularly at the shaft seal. 3. The motors are not overheating.

4. Remove and clean all strainers or filters in the system. 5. Verify the tripping of the motor overload protections.

6. Check operation of all controls & unit control cycling twice and adjust, if required. 7. If the pumps are not operated for unusually long periods, the unit should be

maintained accordingly. In addition, if the pumps are not drained, the pump shafts should be manually rotated or run for short periods of time at monthly intervals. If the pumps fail to operate or there is a loss of performance.

Motor Replacement:

If the motor is damaged due to bearing / electrical failure or burning, follow the instructions for motor removal / replacement. It must be emphasized that motors used on CR pumps are specifically selected to our rigid specifications. Replacement of motors must be of the same frame, size & be equipped with the same or better bearings of the same service factor. Failure to follow these recommendations may result in premature motor failure.

Disassembly Assembly Figure

1. Turn off and lock out power supply. The power supply wiring can now be safely disconnected from the motor wires.

1. Remove key from the motor shaft, if present and discard.

2. Remove the coupling guards.

2. Thoroughly clean the surfaces of the motor and pump end mounting flanges. The motor and shaft must be cleaned of all oil / grease and other contaminants where the coupling attaches. Set the motor on the pump end. 3. Using the proper metric

Allen wrench, loosen the four cap screws in the coupling. Completely remove coupling halves. On CR2-CR60s, the shaft pin can be left in the pump shaft, if exists.

3. Place the terminal box in the desired position by rotating the motor.

4. With the correct size wrench, loosen and remove the four bolts which hold the motor to the pump end.

5. Lift the motor straight up until the shaft has cleared the motor stool.

Sea Water Reverse Osmosis Plant Trouble Shooting:

Problem Possible

Cause Possible Solution

The pump does not run

1. No power at motor.

Check power at motor. If no voltage at motor, check feeder panel for tripped circuits and reset it.

2. Fuses are blown or circuit breakers are tripped.

Turn off power and remove fuses. Check for continuity with ohmmeter. Replace blown fuses or reset circuit breaker. If new fuses blow or circuit breaker trips, the electrical installation, motor and wires must be checked.

3. Motor starter overloads are burned or have tripped out.

Check for voltage on line and load side of starter. Replace burned heaters or reset. Inspect starter for other damage. If heater trips again, check the supply voltage and starter holding coil.

4. Starter does not energize.

Energize control circuit and check for voltage at the holding coil. If no voltage, check control circuit fuses. If voltage, check holding coil for shorts. Replace bad coil. 5. Defective

controls.

Check all safety, pressure switches for operation. Inspect contacts in control devices. Replace worn or defective parts or controls.

6. Motor is defective.

Turn off power and disconnect wiring. Measure the lead to lead resistances with ohmmeter. Measure lead to ground values with ohmmeter. Record measured values. If an open or grounded winding is found, remove motor and repair or replace.

7. Defective capacitor. (Single-phase motors)

Turn off power and discharge capacitor. Check with ohmmeter. Check the meter needle when connected with capacitor, the needle should move towards 0 ohms and slowly drift back to infinity. Replace if defective.

8. Pump is bound.

Turn off power and manually rotate pump shaft. If shaft does not rotate easily, check coupling setting as necessary. If shaft rotation is still tight, remove pump and inspect. Repair if required.

Sea Water Reverse Osmosis Plant Problem Possible

Cause Possible Solution

The pump runs but at reduced capacity or does not deliver water 1. Wrong rotation

Check wiring for proper connections. Correct wiring.

2. Pump is not primed or is air bound.

Turn pump off, close isolation valve(s), remove priming plug. Check fluid level. Refill the pump, replace plug and start the pump. Long suction lines must be filled before starting the pump.

3. Strainers check or foot Valves clogging.

Remove strainer, screen or valve and inspect. Clean and replace. Re-prime pump.

4. Suction lift too large.

Install compound pressure gauge at the suction side of the pump. Start pump and compare reading to

performance data. Reduce suction lift by lowering pump, increase suction line size or removing high friction loss devices.

5. Suction and/or discharge piping leaks.

Pump runs backwards when turned off. Air in suction pipe. Suction pipe, valves and fittings must be airtight. Repair any leaks and retighten all loose fittings.

6. Pump worn.

Install pressure gauge, start pump, gradually close the discharge valve and read pressure at shutoff. Convert measured pressure (in PSI) to head (in feet). Remove pump and inspect, if required.

7. Pump impeller or guide vane is clogged.

Disassemble and inspect pump passageways. Remove any foreign materials found.

8. Incorrect drain plug Installed.

If the proper drain plug is replaced with a standard plug, water will re-circulate internally. Replace with proper plug.

9. Improper coupling setting.

Sea Water Reverse Osmosis Plant Problem Possible

Cause Possible Solution

Pump cycles too much 1. Pressure switch is not properly adjusted or is defective.

Check pressure setting on switch and operation. Check voltage across closed contacts. Readjust switch or replace if defective.

2. Level control is not properly set

Check setting and operation. Readjust setting/replace if defective.

3. Insufficient air charging or leaking tank or piping

Pump air into tank or diaphragm chamber. Check diaphragm for leak. Check tank and piping for leaks with soap and water solution. Check air to water volume. Repair as necessary.

4. Tank is too small.

Check tank size and air volume in tank. Tank volume should be approximately 10 gallons for each gpm of pump capacity. The normal air volume is 2/3 of the total tank volume at the pump cut-in pressure. Replace tank with one of correct size.

5. Pump is oversized.

Install pressure gauges near pump suction and discharge. Start and run pump under normal

conditions, record gauge readings. Ensure that total head is sufficient to limit pump delivery within its design flow range. Throttle pump discharge flow if necessary.

Circuit breakers or overload relays trip

1. Low voltage. Check voltage at starter panel / motor. If voltage varies more than ±10%, contact power company / wire sizing. 2. Motor

overloads are set too low.

Cycle pump and measure amperage. Increase heater size or adjust trip setting to a maximum of motor nameplate (full load) current.

3. Three-phase current is imbalanced.

Check current draw on each lead to the motor. Must be within ±5%. If not, check motor and wiring. Rotating all leads may eliminate this problem.

4. Motor is shorted or

Turn off power and disconnect wiring. Measure the lead-to-lead resistance with an ohmmeter. Measure

Sea Water Reverse Osmosis Plant

grounded. lead-to-ground values with an ohmmeter or a mega- ohm meter record values. If an open or grounded winding is found, remove the motor, repair or replace. Problem Possible

Cause Possible Solution

5. Wiring or connections are faulty.

Check proper wiring and loose terminals. Tighten loose terminals. Replace damaged wire.

6. Pump is bound.

Turn off power and manually rotate pump shaft. If shaft does not rotate easily, check coupling setting and adjust as necessary. If

shaft rotation is still tight, remove pump and inspect. Disassemble and repair.

7. Defective capacitor (single-phase motors).

Turn off power and discharge capacitor. Check with ohmmeter. When the meter is connected to the

capacitor, the needle should jump towards 0 ohms and slowly drift back to infinity. Replace if defective.

8. Motor overloads at higher ambient temperature than motor.

Use a thermometer to check the ambient temperature near the overloads and motor. Record these values. If ambient temperature at motor is lower than at

overloads, especially where temperature at overloads is above 104°F (40°C), ambient-compensated heaters should replace standard heaters.

Service:

Various steps involved in service (dismantling and Reassembly) are elaborated below on Grundfos CR4 pump type:

Torques

Shaft Lock Nut (Reassembly step 9) 9ft-lbs / 12Nm

Stay bolt nut (Reassembly step 17) 30ft-lbs / 40Nm

Motor Bolt

UNC 3/8” bolts UNC ½” bolts

10ft-lbs / 13Nm 23ft-lbs / 31Nm Coupling Allen Screws

M6 Screws M8 Screws

10ft-lbs / 13Nm 23ft-lbs / 31Nm

Sea Water Reverse Osmosis Plant When should a part be replaced

Sea Water Reverse Osmosis Plant Order of Stage Assembly

Sea Water Reverse Osmosis Plant 5 5..77 PPlluunnggeerrPPuummpp,, CCAATT--33553377 3537 Frame Plunger Pump 3537 Frame Plunger Pump with Motor M MooddeellTTyyppeess::

Material Type Model

Nickel Aluminum Bronze,Standard and Flushed

Sea Water Reverse Osmosis Plant FEATURES

Superior Design >

> Triplex plunger design gives smoother liquid flow. >

> V-Packings are completely lubricated and cooled by the liquid being pumped. >

> Special flushed inlet manifold lubricates and cools seals for extended life with DI water and high temp liquids.

>

>Lubricated Lo-Pressure Seals provide double protection against external leakage.

>

>Oil bath crankcase assures optimum lubrication. >

>Close tolerance concentricity of the ceramic plunger maximizes seal life. Quality Materials

>

> Precision design 304 and 316 stainless steel valves and seats are hardened and polished for ultimate seating and extended valve life.

>

> Forged Brass, 316 Stainless Steel, Duplex Stainless or Nickel Aluminum Bronze manifolds for strength and corrosion resistance.

>

> Special concentric, high-density, polished, solid ceramic plungers provide a true wear surface and extended seal life.

>

> Specially formulated, CAT PUMP exclusive, V-Packings offer unmatched performance and seal life.

>

> Die cast aluminum crankcase provides high strength, minimum weight and precision tolerance control.

>

> Chrome-moly crankshaft gives unmatched strength and surface hardness. >

> Oversized crankshaft bearings with greater loading capacity means longer bearing life.

Easy Maintenance >

> Wet-end is easily serviced without entering crankcase, requiring less time and effort.

>

> Valve assemblies are accessible without disturbing piping, for quick service. >

> Inlet and discharge valve assemblies interchange for easier maintenance. >

>Preset packings, no packing gland adjustment is necessary, reducing maintenance costs.

WARNING

All systems require both a primary pressure regulating device (i.e., regulator, un- loader) and a secondary pressure safety relief device (i.e., pop-off valve, safety valve). Failure to install such relief devices could result in personal injury or damage to the pump or to system components. CAT PUMPS does not assume

Sea Water Reverse Osmosis Plant

any liability or responsibility for the operation of a customer’s high pressure system.

SPECIFICATIONS U.S. Measure Metric Measure

Flow...36 GPM (136 L/M) Pressure Range...100 to 1200 PSI (7 to 85 BAR)

Inlet Pressure Range ...Flooded to 70 PSI (Flooded to 4.9 BAR) RPM ...800 RPM (800 RPM)

Bore ...1.575" (40 mm) Stroke...1.890" (48 mm) Crankcase Capacity...4.2 Qts. (4 L) Maximum Liquid Temperature ...160°F (71°C) Above 130°F call CAT PUMPS for inlet conditions and elastomer recommendations.

Inlet Ports (2) ...1-1/2" NPTF (1-1/2 NPTF) Flushing Ports (2) (3531C) ...1/4" NPTF 1/4" NPTF Discharge Ports (2)...1" NPTF (1" NPTF) Pulley Mounting ...Either Side (Either Side) Shaft Diameter ... 1.378" (35 mm) Weight...139 lbs. (63 kg)

Dimensions (3535, 3535C) ...24.09 x 18.11 x 9.72" (612 x 460 x 247 mm) Dimensions (3531-31C, 3537-37C) ....24.33 x 18.11 x 9.72" (618 x 460 x 247 mm) ELECTRIC HORSEPOWER REQUIREMENTS

FLOW PRESSURE

RPM DRIVE

U.S. GPM L/M BAR 55 BAR 70 BAR 85 _{Consult CAT PUMPS}

for Pump and Motor Pulley Sizes

3 366 113366 1199..88 2244..77 2299..77 880000 3 300 111144 1166..55 2200..66 2244..77 666677 2 255 9955 1133..77 1177..22 2200..66 555566 PARTS LIST

ITEM PART NO MAT’L DESCRIPTION QTY

2 34021 STL Key (M10x8x70) 1

5 125753 S Screw, HHC Sems (M8x25) 8

8 44542 AL Cover, Bearing 2

9 815279 FBR Shim, Split 2-Pc 4

10 12398 NBR O-Ring, Bearing Cover - 70D 2

11 13296 NBR Seal, Oil, Crankshaft 2

15 29326 STL Bearing, Roller 2

20 121467 TNM Rod, Connecting Assy (Inclds: 21,22,23) [10/00] 3

21 126749 STCP R Locking Washer (M10) 3

22 126574 STZP R Washer, Flat (M10) Replace as a set 6

23 122045 STZP Screw, HH (M10x55) 6

25 29325 FCM Crankshaft, Dual End 1

31 828710 - Protector, Oil Cap w/Foam Gasket 1

32 43211 ABS Cap, Oil Filler 1

33 14177 NBR O-Ring, Oil Filler Cap - 70D 1

34 126743 STCP R Bolt, Eye (M12x1.75) (For Lifting Pump Only) 1

37 92241 - Gauge, Oil, Bubble w/Gasket 1

38 44428 NBR Gasket, Flat, Oil Gauge - 80D 1

40 125753 S Screw, HHC Sems (M8x25) 8

48 25625 STCP Plug, Drain (1/4"x19BSP 1

49 23170 NBR O-Ring, Drain Plug – 70D 1

Sea Water Reverse Osmosis Plant

51 16612 NBR O-Ring, Crankcase Cover - 70D 1

53 44487 AL Crankcase Assy (Inclds: 34, 54) 1

54 27488 S Pins, Guide 2

56 27790 POP Pan, Oil 1

59 92538 S Screw, HHC Sems (M6x16) 2

64 43864 CM Pin, Crosshead 3

ITEM PART NO MAT’L DESCRIPTION QTY

65 †45116 SSZZ Rod, Plunger 3

69 126587 STCP R Washer, Oil Seal 3

70 100488

44739

NBRS FPM

Seal, Oil, Crankcase 3

3

75 43865 S Slinger, Barrier 3

88 45676 S Washer, Keyhole (M16) 3

90 43921 CC Plunger (M40x145) 3

95 †89778 SS Stud, Plunger Retainer (M10x135) 3

96 20189 PTFE Back-up-Ring, Plunger Retainer 3

97 11345 11375 ♦ 701490 NBR FPM EPDM

O-Ring, Plunger Retainer - 70D O-Ring, Plunger Retainer O-Ring, Plunger Retainer

3 3 3 98 44085 SS Gasket, Retainer 3 99 44084 SS Retainer, Plunger (M10 3 100 814279 PVDF Retainer, Seal, 2 Pc. 3

101 44112 - Wick, Long Tab 3

106 44113 44740 ♦ 46955 NBR FPM EPDM Seal, LPS w/SS-Spg Seal, LPS w/SS-Spg Seal, LPS w/SS-Spg 3 3 3

107 43925 BB Spacer, Lo-Pressure Seal 3

110 46392

46392C

BBCP BBCP

Manifold, Inlet

Manifold, Inlet, Flushed (1/4" Flush Ports)

1 1 112 11379 14183 ♦ 701491 NBR FMM EPDM

O-Ring, Inlet Manifold - 70D O-Ring, Inlet Manifold O-Ring, Inlet Manifold - 70D

3 3 3 117 44585 S Screw, HSH (M14x40) 4 126 43926 BB Adapter, Female 3 127 44609 44741 STG* SFG V-Packing V-Packing 6 6 128 43928 BB Adapter, Male 3 141 45113 SS Springs, Coil 6/18

142 46352 BB Spacer, w/Coil Springs 3

155 48860 20137 ♦ 701492 NBR FPM EPDM O-Ring, V-Packing-Spacer - 90D O-Ring, V-Packing-Spacer - 70D O-Ring, V-Packing-Spacer 3 3 3 156 48362 D Back-up-Ring, Spacer 3 157 †45369 SS Spacer, V-Packing 3 158 48362 D Back-up-Ring, V-Packing-Spacer 3 159 48860 20137 ♦ 701492 NBR FPM EPDM O-Ring, V-Packing-Spacer - 90D O-Ring, V-Packing-Spacer - 70D O-Ring, V-Packing-Spacer 3 3 3

162 48363 D Back-up-Ring, Valve Seat 6

163 26142 14330 ♦ 701493 NBR FPM EPDM O-Ring, Seat - 80D O-Ring, Seat O-Ring, Seat 6 6 6 164 44727 S Seat, Stepped 6 166 43932 S Valve 6 167 44109 SS Spring 6 168 44728 PVDF Retainer, Spring 6

Sea Water Reverse Osmosis Plant

170 44729 SS Washer, Spring Retainer 6

171 44644 SS Coil Spring (70kg), Valve Plug 6

172 89827 11747 ♦ 701494 NBR FPM EPDM

O-Ring, Valve Plug - 90D

In document Aspectos poblacionales del lobo en el Parque Nacional de los Picos de Europa (página 58-70)