What is the inspection and precautions for AntSpace HK3 liquid cooling system?

1

Professional inspection of valve internal water cooling system

1.1

Main circulation pump

1) There must not be any visible signs of oil or water leakage.

2) There should be no unusual noise or vibration present.

3) The bearing should operate smoothly, free from any abnormal noise or seizing.

4) The inlet and outlet pressure difference should be within the normal range.

5) The area around the main circulation pump should remain dry, and no leakage.

6) When measuring the pump body's temperature using infrared, there should be no abnormal temperature increase.

(1) During the inspection tour, it is crucial to maintain an adequate safety buffer from energized equipment.

(2) When conducting inspections, refrain from engaging in any other work, and refrain from moving away from or crossing over the protective fence.

(3) Exercise caution when opening and closing equipment doors to prevent excessive vibration.

(4) Before entering the equipment area, ensure that you wear a helmet, avoid wearing slippers or high heels, and adhere to the required attire.

(5) Strict adherence to the prescribed inspection route is mandatory. The alteration of maintenance site safety measures and the modification of maintenance equipment status during inspections are strictly prohibited.

(6) Prior to commencing the inspection, verify that all safety instruments to be used are in working order.

Once every half month

1.2

Main Filter

1) The tank must exhibit excellent sealing capabilities, ensuring no leakage or water overflow occurs.

2) The bolts securing the main filter should be tightly fastened, with no sign of looseness or internal noise.

3) The pressure difference before and rear the main filter should be within the normal range.

Once every half month

1.3

Voltage stabilization system

1) The pressure in the expansion tank should remain above the standard or normal value.

2) There should be no leakage from pipeline joints or exhaust valves.

Once every half month

1.4

Hydration device

1) The water level in the makeup water tank should remain within the acceptable or standard range.

2) The PSU of the makeup water pump should function without any irregularities.

3) The valve positions in the makeup water circuit should be in their normal or intended state.

4) The mechanical seal of the makeup water pump should be free from any signs of water leakage.

Once every month

1.5

Sensors

1) The sensor connector must be securely tightened and devoid of any water leakage.

2) The display value on the sensor panel should be regular and free from any black screen issues.

3) The local display's readings should align with the remote transmission data.

Once every month

1.6

Piping, flanges and valves

1) The pipeline should exhibit no unusual vibrations.

2) Pipeline and flange joints, as well as drainage valves, should be intact, without any signs of breakage or water leakage.

3) The pipeline and flange should remain unblemished, free from any deformations or distortions.

4) The connection bolts must be securely tightened, gaskets should be undistorted, and the torque line should not have shifted.

5) The valve position should accurately reflect the mode of operation, and the opening degree should not have deviated.

6) The valve position indicator should display normal readings.

Once every half month

1.7

PSU cabinet

1) Absence of alarm signals and abnormal sounds.

2) The power switch should be in its normal position, with all control handles and knobs correctly aligned.

3) The cabinet status indications must be accurate, reflecting the actual state of the equipment.

4) Components and cables should show no signs of aging or burn paste traces.

5) Infrared temperature measurements of power cables and switchgear components should reveal no local overheating.

6) Terminal wiring should remain intact, with no fallen-off connections or abnormal terminal openings.

7) The inverter panel display should be clear and free from black screen or bad screen phenomena. The signal indicator should be normal, and the control mode should be in its standard position.

8) The radiator fan should operate smoothly, without abnormal sounds or stopping. The filter should remain unblocked.

9) Ventilation style windows should be free of foreign object coverage, ensuring good airflow.

10) The cabinet interior should be free from water and condensation.

11) The lighting function should function normally.

12) The cabinet door should seal tightly, closing properly, and cable holes should be securely sealed.

Once a month

1.8

Control and protection cabinet

1) Alarm signal absent, devoid of abnormal noises.

2) The power switch is in its regular position, with all control handles and knobs accurately set.

3) The host is securely fastened, fasteners are present and intact, and the exterior is unharmed.

4) The host fan operates smoothly, without abnormal noises.

5) The status indicators on the host indicate normal conditions.

6) All input and output modules and slot connections must be sturdy and dependable, free from bending, deformation, extrusion, and dust accumulation.

7) The cabinet status indication accurately reflects the actual state of the equipment.

8) Components and cables show no signs of aging or burn paste traces.

9) Infrared temperature measurements reveal no localized overheating.

10) Terminal wiring is secure, with no loose connections or abnormal terminal openings.

11) The radiator fan operates smoothly, devoid of abnormal sounds, stalls, or filter blockages.

12) The cabinet is free from water and condensation.

13) The cabinet lighting function should operate normally.

14) The cabinet door seals well, closes properly, and cable holes are tightly sealed.

Once a month

2

Specialized examination of the water cooling system components excluding the valve

2.1

Piping, valves

1) The exterior should be devoid of rust, corrosion, and scaling.

2) The pipeline should be free from sand holes and exhibit no water leakage.

3) The indications for pipeline water flow direction, as well as valve opening and closing, should be clear and unambiguous.

4) The valve position should align with the operational mode, and its opening degree should not have shifted.

5) The valve locking device should be intact, with no damage, rust, or corrosion to the lock.

Once a month

2.2

Meters

1) The meter's appearance should be damage-free, and all joints should be tightly secured with no looseness.

Once a month

2.3

Control cabinet

1) The display is devoid of alarm signals, and there are no abnormal sounds emanating from the cabinet.

2) The power switch is in its normal position.

3) The indicators on the host, input and output modules, and power modules are all functioning normally.

4) The cabinet status indication accurately reflects the actual state of the equipment.

5) Components and cables exhibit no signs of aging or burn traces.

6) Infrared temperature measurements indicate no localized overheating.

7) Terminal wiring is secure, with no falling off or abnormal opening of the terminals.

Once a month

2.4

Cooling Towers

1) The cooling tower body is free from leakage, deformation, damage, and rust, among other possible phenomena.

2) The fan motor speed of the cooling tower is normal, with even bearing rotation and no abnormal sounds.

3) The fan blades of the cooling tower are devoid of deformation, cracks, or breakage, and operate with normal running noise.

4) The spray pipe is unblocked, with no breakage, and ensures uniform water flow. There is no overflow in the incoming or returning water, and no suction empty phenomenon.

5) The valve position indications for the import and export of cooling water, water replenishment, sewage, and others are accurate, and the valve locking devices are functioning normally.

6) The fan junction box, safety switch sealing, and rainproof measures are in good condition. The internal wiring is free from overheating, aging, or loose connections.

7) The cooling tower grille is devoid of deformation or water overflow.

Once a month

L1

H

H1

L2

L3

L7

L9

L5

L4

L8

L6

R

D1

D2

D3

n

dl

700

462

232

510

195

402

350

150

170

310

135

6

150

240

285

8

22

3. Impeller

12. Bolts, washers, nuts

26. Pipe Plugging

38. Pump head

4. Pump shaft

5. Mechanical Seals

15.Base

30. Bolts, washers

39. Bolts, washers

22. Set screws

6. Post Circle

23.Key

33.Spring washers

16. Crossed pan head screws

18.Nut, washers

Motor doesn't work

1. The power supply has malfunctioned.

2. The control circuit is defective.

1. Verify the power supply status - ensure the container's control cabinet is properly powered on or off.

2. Inspect the incoming and outgoing lines - confirm that the three-phase circuit connection sequence is correct, and address any abnormal indications from the container.

Pump flow is inadequate

1. The pipeline is obstructed.

2. Air inlet pipe.

3. The motor impeller connection is experiencing water leakage.

1. Inspect the pump - verify that the impeller disk of the pump is rotating in a regular and smooth manner.

2. Check the pipeline - after removing the water tank strainer, visually inspect the pipeline to see if there are any foreign objects in the pump head, the water tank level is detected by the level meter without replenishment, and there is no vortex in the water tank to absorb the empty situation.

3. Replace the worn wear ring as needed, refer to the instructional video for detailed steps.

Excessive pump power consumption

1. Flow rate is too large.

2. The motor bearings have significant wear and tear.

1. Verify the presence of any overload conditions and take appropriate measures to address the specific overload item.

2. Once the manufacturer has confirmed the extent of wear and tear, proceed with replacing the entire pump.

Excessive noise

1. Pump components are damaged.

2. Wear and tear on motor bearings.

3. Air in the pump.

1. Replace the impeller, which is a component located inside the pump.

2. Once the manufacturer has verified the wear and tear, proceed with replacing the entire pump.

3. To drain the water, use the exhaust bolt located on the flange side of the pump to direct the water out through the bolt hole. Refer to the exploded diagram for detailed instructions.

Motor is hot

1. Overloaded current exceeding limits

2. Water inlet flow is inadequate

1. Verify the system alarm message and ensure that the operating current does not exceed 5% of the rated current value.

2. Inspect the water level in the sink using the supplemental sink water level meter. Ensure that the system indicates a normal water level and that there are no vortexes in the sink, which could indicate an air suction or empty condition.

2. Impeller shaft head bolts

5. Bushing

8. Dampers

11. Protective net fixing bolts

3. Impeller fixing nut

6. Impeller fixing bolt

9. Protective net fixing nuts

12 Motor

Fan exhibiting vibration and unusual noise

1. The balance block on the wheel hub is dislodged or the balance is not calibrated after overhaul. (See the exploded view for the location of the wheel balancing block)

Perform wheel rebalancing or conduct an on-site balancing test to ensure proper rotation.

2. The installation angles of the blades are not uniform, resulting in a blade height difference that exceeds the specified requirements.

Visually inspect the blades to detect any deformations.

3.The surface of the blade exhibits uneven adhesion.

Thoroughly clean the blade surfaces to remove any dirt or debris.

4.The clearance between the impeller and the wind cylinder is uneven.

Initially check for any friction between the impeller and the wind cylinder, ensuring a uniform spacing (with an error not exceeding 5MM).

5.Damage to the spindle bearing.

Upon confirmation by the manufacturer, replace the bearings or the entire machine, if necessary.

Unbalanced three-phase current

1.Imbalance in the power supply voltage.

Measure the power supply voltage and identify the cause of any irregularities.

2.Failure of the windings.

Determine the cause of any resistance issues and make repairs accordingly (ensuring that the three resistance values are consistent).

Motor's rated current exceeds the limit

1.Intrinsic failure of the motor.

1. Identify and address the root cause of any issues promptly.

2.The power supply voltage exceeds the standard voltage.

Measure the power supply voltage to determine the cause and opt for a higher-quality power grid, if possible.

Airflow below the required level

1.The impeller is rotating in the opposite direction.

1. Adjust the wiring phase sequence to ensure that the fan blades rotate in the direction indicated by the arrow.

External Hexagon Bolts

S(mm)

Bolt Diameter

M(mm)

Bolt Strength Grade 4.8

Ma (Nm)

10

M6

3.92

13

M8

9.48

17

M10

19.1

19

M12

32.6

22

M14

52

24

M16

79.9

Stainless steel bolt torque meter

External Hexagon Bolts

S(mm)

Bolt Diameter

M(mm)

Bolt Strength Grade A2-70

Ma（Nm）

10

M6

5.6

13

M8

13.6

17

M10

26.9

19

M12

46.9

24

M16

117

Note: 1. S represents the distance between the two parallel sides of the external hexagon.

2. Ma denotes the torque value required for the bolt, measured in Newton-meters (N-m).

Time:

Surrounding Temp:

Surrounding Humidity：

Project

Inspection Items

Conclusion

Evaluate

Cooling system

Main Pump

Water refill tank

Piping, valves and limit markings

Pressure gauges

Pressure sensors

Temp sensors

Flow sensors

Power and control cabinets

LCD display

Container fans

Cooling tower with associated external piping

Fans

Spray water pump

Pool level

Pipe connection port

Valve status

Check conclusion：

Inspector：                                      Verifier：