ZX horizontal self-priming pump maintenance disassembly and troubleshooting

ZX series of horizontal self-priming pump is characterized by simple structure, reliable, durable. In the normal case of the pump, generally do not often need to dismantle the staff Q? 5 embarrassingly stop shrimp watt equipment? Cowardly? Pure umbrella?

1. Maintain the pump should pay attention to several major parts:

a. Rolling bearings: when the pump is running for a long time, bearing wear to a certain extent, to be replaced.

b. Front seal ring, rear seal ring: When the seal ring wear to a certain extent, to be replaced.

c. mechanical seal: mechanical seal in the case of liquid leakage, the general should not be demolished 约 椤 糁 H 糁 岢 逑 逑 逑 逑 statement solitary ┛ 诖 Σ ??胁 鸺 臁 W security 得 W security 得 芊 芊 馐??? 匦 raised? ⒁ Hamamatsu Hamamoto that 褰 啵 ず ず;孤 舛 ??? Solitary brain 蛑 gluttonous? Σ Σ food poisoning 胬 diarrhea F 湫 薷 window 旆 ǎ? What read GS grain shake prostitutes? Awakening ナ enough refers to Chun was 妗;孤 孤 animal husbandry 硪 Hui? 蚴? Precisely the right? "Rubber seals (or cushion) improper installation, or deformation aging to this time you need to adjust or replace the" O "ring for reassembly.

2. Self-priming pump disassembly order:

a. Remove the motor or remove the coupling.

b. Remove the bearing body assembly, check the radial clearance of the impeller and the front ring, check whether the impeller nut loose.

c. Remove the impeller nut, pull out the impeller, check the plug toe Bald Zhu 芊 饣 back to cut off the parsley 湎 Ding?

d. Loosen the tight seal of the mechanical seal and pull out the moving part of the mechanical seal. Check the fit of the moving and stationary end faces and check the seal of the O-ring [or cushion].

e. Unscrew the coupling adapter nut and pull out the coupling.

f. Remove the bearing cover and remove the shaft and bearings.

g. The installation can be done in reverse order.

3. Self-priming pump failure: pump out

cause:

1. There is no fluid in the pump housing or insufficient fluid

2. Inhalation pipe leakage

3 speed is too low

4. Suction too high or too long suction pipe

5. Mechanical seal leakage is too large

6. Suction pipe gas can not be discharged from the outlet

Method of exclusion:

1. Add enough stock solution

2. Check and correct the leak

3. Adjust the speed

4. Reduce suction or shorten suction line

Repair or replace

6. Exhaust it

Fault: noise and vibration larger

cause:

1. Feet unstable

2. The pump shaft is bent

Cavitation phenomenon

4. Bearing wear serious

5. There are debris imported pipe

6. Both pump and motor spindle is not concentric

Method of exclusion:

1. Reinforced

Replace or correct

3. Adjust the working conditions

4. Replacement

5 drops of debris

6. Adjust the coaxiality

Fault: lack of water

cause:

1. The impeller runner and suction tube are blocked

2. impeller or impeller seal wear and tear

3. Insufficient power or too low speed

Method of exclusion:

1. Remove the blockage

2. Change the mouth ring

3. Add enough power, adjusted to rated speed

Fault: shaft power consumption is too large

cause:

1. Flow too large

Speed ​​is too high

3. Pump shaft bending or impeller card touch

4. The pump runner is blocked or stuck

Method of exclusion:

1. Raise the outlet pressure

2. Appropriate to reduce

3. Replace or correct

4. Exclusion blockage

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