ANTSPACE HK3 liquid cooling system daily inspection requirements

1) There should be no obvious oil leakage or water leakage;

2) There should be no abnormal noise and vibration;

3) The bearing should be free of abnormal noise and jamming;

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

5) No leakage near the main circulation pump is dry;

6) No abnormal temperature rise when the pump body is measured by infrared temperature.

(1) Inspection tour should maintain a sufficient safety distance from live equipment.

2）When inspecting, no other work should be done, and no moving away from or over the cover fence.

(3) Open and close the equipment door should be careful to prevent excessive vibration.

4）Entering the equipment area, you must wear a helmet, no slippers or high heels, and dress in accordance with the requirements.

(5) Strictly in accordance with the inspection route, inspection of equipment is prohibited to change the maintenance site security measures, prohibit the change of maintenance equipment state.

(6) before the inspection, check the safety instruments used intact.

1) Good sealing performance of the tank, no leakage, water overflow phenomenon;

2) The main filter fixed bolts should be free of looseness and internal noise;

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

1) The expansion tank pressure should not be lower than the normal value;

2) Pipeline joints and exhaust valves should be free of leakage;

1) The level of the make-up water tank should be within the normal range;

2) The power supply of the make-up water pump should be free of abnormalities;

3) The valve position of the make-up water circuit should be normal;

4) The mechanical seal position of the make-up water pump should be free of water leakage.

1) The sensor connector should be free of looseness and water leakage;

2) Sensor panel display value should be normal and no black screen phenomenon;

3)The local display is consistent with the remote transmission data.

1) No abnormal vibration of the pipeline;

2) Pipeline and flange joints, drainage valves are not broken, no water leakage phenomenon;

3) Pipeline and flange should be free of deformation and distortion;

4) The connection bolts shall be free of looseness, gaskets shall be free of deformation, and the torque line shall not be shifted;

5) The valve position should be consistent with the mode of operation, the opening degree has not been displaced;

6) The valve position indication is normal.

1) No alarm signal, no abnormal sound;

2) Normal position of the power switch, all kinds of control handles and knobs in the correct position;

3) The cabinet status indication is correct, consistent with the actual state of the equipment;

4) Components and cables without aging phenomenon, no burn paste traces;

5) Power cable, switchgear components for infrared temperature measurement, there should be no local overheating phenomenon;

6) Terminal wiring without falling off, no abnormal opening of the terminal;

7) Inverter panel display without black screen, bad screen phenomenon, signal indicator is normal, control mode in normal position;

8) The radiator fan runs normally, no abnormal sound or stopping phenomenon, the filter is not blocked;

9) Ventilation style window without foreign matter coverage, good ventilation;

10) Cabinet without water, condensation phenomenon;

11) Lighting function should be normal;

12) Cabinet door sealing good, close normal, cable hole sealing tight.

1) No alarm signal, no abnormal sound;

2) Normal position of the power switch, all kinds of control handles and knobs in the correct position;

3) The host is well fixed, the fasteners are complete and intact, the appearance is intact without damage;

4) Normal operation of the host fan, no abnormal sound;

5) The host of the status indicators indicate normal;

6) Each input and output module and slot connection should be solid and reliable, no bending, deformation, extrusion phenomenon, no dust accumulation;;

7) The cabinet status indication is correct, consistent with the actual state of the equipment;

8) Components and cables without aging phenomenon, no burn paste traces;

9) Infrared temperature measurement should be no local overheating phenomenon;

10) Terminal wiring without falling off, no abnormal opening of the terminal;

11) Radiator fan running normally, no abnormal sound or stall phenomenon, no blockage of the filter;

12) Cabinet without water, condensation phenomenon;

13) The cabinet lighting function should be normal;

14) Cabinet door sealing good, close normal, cable hole sealing tight.

Once every month

1) The appearance should be free of rust and corrosion, and no scaling;

2) Pipeline should be free of sand eyes, no water leakage;

3) Pipeline water flow direction indication, valve opening and closing indication is clear;

4) Valve position should be consistent with the mode of operation, the opening degree has not been displaced;

5) Valve locking device is intact, the lock is not damaged, rust and corrosion.

1) No alarm signal on the display, no abnormal sound in the cabinet;

2) Normal position of the power switch;

3) The host, input and output modules, power modules and other indicators are normal;

4) The cabinet status indication is correct, and the actual state of the equipment;

5) Components and cables without aging phenomenon, no burn traces;

6) Infrared temperature measurement should be no local overheating phenomenon;

7) Terminal wiring without falling off, no abnormal opening of the terminal;

1) Cooling tower body without leakage, deformation, damage and rust and other phenomena;

2) Cooling tower fan motor speed, turning normal, bearing rotation even, no abnormal sound;

3) Cooling tower fan blade no deformation, no cracks, no breakage, normal running noise;

4) No blockage of the spray pipe, no breakage, uniform water flow, into, return water without overflow and suction empty phenomenon;

5) The import and export of cooling water, water replenishment, sewage and other valve position indication is correct, the valve locking device is normal;

6) Fan junction box, safety switch sealing and rainproof situation is good, internal wiring without overheating, aging, loose phenomenon;

7) Cooling tower grille without deformation, water overflow.

Motor does not start

1. Power supply failure

2. Control circuit is faulty

1. Check the power supply - container control cabinet power on and off.

2. Check the in and out line - three-phase circuit connection sequence is normal, container abnormal tips.

Insufficient pump flow

1.The pipeline is blocked

2. Air inlet pipe

3.Water leakage at the connection of motor impeller

1. Check the pump - whether the impeller disk of the pump is rotating normally.

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 wear ring wear, see the instructional video for details.

1. Flow rate is too large

2. Motor bearings are badly worn

1. Check whether there is overload and deal with the corresponding overload item.

2. After the manufacturer confirms the wear and tear, replace the whole pump.

1.Damaged parts in the pump

2.Motor bearing wear

3.Air in the pump

1. Replace the parts inside the pump - impeller.

2. Replace the whole pump after the manufacturer confirms the wear and tear.

3. Exhaust the water through the pump flange side exhaust bolt to the bolt hole, see the exploded diagram for details.

1. Excessive current overload

2. Insufficient water inlet

1. Check the system alarm message, the operating current should not exceed 5% of the rated current.

2. Check the water level of the sink: the supplemental sink water level meter detects that the system prompts normal, and the sink has no eddy current to absorb the empty situation.

Fan vibration and abnormal sound

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)

External hexagon bolts

S(mm)

Bolt diameter

M(mm)

Bolt strength grade 4.8

Ma (Nm)

External hexagon bolts

S(mm)

Bolt diameter

M(mm)

Bolt strength grade A2-70

Ma（Nm）

Inspection results：

Inspector：                                      Checker：