在沧州酒店晚上怎么叫服务

Cold storage maintenance

The tenet of Yangsheng electromechanical maintenance service is "customer-oriented, quick response". In line with a high sense of responsibility for users, for users think, for users urgent, do a good job in maintenance services.

The company's staff have professional maintenance level, most of them have more than three years of experience in maintenance of main equipment, can quickly and accurately judge the cause of each type of refrigeration equipment failure and can quickly eliminate the fault. Professional technology, original factory accessories, reasonable price, sincerely invite your call ~ timely, spare parts warranty, so that you have no worries. Free repair in the warranty period; after the warranty period, the company still at a preferential price maintenance charges and supply spare parts.

The company has set up a special after-sales service center, which opens a 24-hour repair call. After receiving the repair call, the maintenance personnel will rush to the site within 4-6 hours. If parts need to be replaced, the parts shall be repaired within 2 hours after arrival, and the major failure of the compressor shall be solved within 3 days.

Failure analysis of refrigeration system in cold storage:

fault reason exclude
Compressor not running
Electrical causes
1. When the power supply is cut off or the fuse is blown, the three-phase power is missing or the phase is unbalanced, and the pressure relay acts
2. The contact point of the starter is in poor contact
3. Temperature controller out of balance or water supply failure
4. Improper setting of pressure relay
1. Check the power supply, replace the fuse, eliminate the lack of phase or imbalance, check the pressure or repair the relay
2. Check the starter. Clean the contacts with a cloth
3. Check the temperature indication position. Check the components
4. Check the components and setting values of the pressure controller
Compressor starts and stops 1. Wrong connection of starting compensator and wrong connection of motor 1. Check the circuit; 2.
The compressor starts and stops frequently 1. Abnormal pressure of refrigeration system
2. Improper adjustment of pressure controller
3. The pressure of refrigeration system is too low
1. Check the high pressure to make the pressure normal again
2. Adjust and check for fluorine leakage or blockage
Compressor does not run (mechanical reasons) or stop after starting 1. Jamming or axle holding
2. Abnormal oil pressure
3. The stop valve, cooling water valve and outlet valve of the compressor are not opened
4. Improper adjustment of temperature controller
5. Solenoid valve failure
1. Open the cover for inspection and repair
2. Check the oil circuit and oil supply
3. Check and open valve (5)
4. Readjustment
5. Check and repair
The cylinder is knocking 1. Collision between piston engine and exhaust valve
2. Valve plate damaged
3. Piston and piston ring clasp
4. Piston ring wear
5. Liquid percussion
6. The screw of the valve is loose
7. Excessive or impure refrigerant oil
8. Foreign matter falling in
1. Increase the gap
2. Replacement
3. Add lubricating oil or take it out for maintenance
4. Replacement
5. Find out the causes and eliminate them
6. Increase elasticity
7. Fastening
8. Clean the cylinder, change the oil, check and take it out
Cylinder wear 1. The piston clearance of the cylinder is too small
2. Foreign matter falling into cylinder
3. Impurities in refrigeration oil
4. The refrigerant oil is impure and the model is wrong
5. Abnormal temperature
6. Piston ring gap or lock size is not correct
7. Crankshaft crank or connecting rod big end
8. Oil hammer caused by splashing oil
1. Readjustment according to regulations
2. Take out after inspection
3. Replacement
4. More abstract
5. Do not overheat or overheat
6. Adjustment
There is noise in the crankcase 1. Excessive clearance (6)
2. Coordination relaxation
3. The bolt is loose or the split pin is broken, the connecting rod nut is loose, and the bearing lubrication is poor
4. The clearance of connecting rod big end bearing bush is large
1. Check the clearance between connecting rod big and small end bearing bush and crank, crankshaft and main bearing. Repair or readjust. Fasten the loose parts. Replace the cotter pin.
Oil leakage of shaft seal 1. The oil resistant rubber ring is damaged, the stone mill is also damaged, and the contact surface is damaged 1. Replacement
Air leakage of shaft seal 1. Lack of oil or blockage of oil inlet pipe
2. Poor sealing of shaft seal
1. Add oil and remove the blockage of oil way
2. Replacement
Compressor stuck 1. Dirt and impurities in lubricating oil
2. The oil delivery pipe of the oil pump is blocked, causing the cylinder to be short of oil and the piston is stuck
3. The shank pin of the main gear of the oil pump inserted into the crankshaft is broken, causing the oil system to cut off oil
1. Replace with new lubricating oil
2. Maintenance of oil pump pipeline
3. Overhaul and replace the main gear shaft of oil pump
Compressor and motor coupling noise 1. Matching of compressor and motor coupling
2. The key and keyway of the coupling are not matched properly
3. The elastic ring of the coupling is damaged or damaged
4. The belt is too loose
5. Coupling bore and shaft fit loose
1. Reassemble according to the correct assembly requirements
2. Adjust the fit between the key and the keyway and replace it with a new one
3. Tighten the elastic ring or replace it with a new one
4. Adjust the tension belt
5. Adjust and tighten the coupling
All kinds of noise 1. Caused by compressor failure 1. Refer to relevant sections
Increased power consumption 1. The internal parts of the compressor are assembled too tightly and
2. Heat load increase
1. Maintenance
2. Partial load removal (7)
There is no oil pressure when the compressor starts 1. Oil pump drive failure
2. The oil inlet of oil pump is blocked
3. Oil pressure gauge failure
4. There is no oil in the oil filter
1. Disassemble and repair
2. Remove dirt
3. Replace the oil pressure gauge
4. Remove the maintenance pin of oil pump cover and add oil
The oil pressure controller makes the compressor stop after starting 1. Abnormal oil pressure or lack of oil 1. Adjust the oil pressure, add oil and check the oil way to remove the blockage
Oil pressure too low 1. Insufficient oil
2. Failure regulation
3. The filter screen is not blocked yet
4. The oil inlet is blocked
5. Operation under vacuum condition
6. Worn oil pump
1. Make up oil
2. Check and adjust the oil pressure regulating valve
3. Remove and clean
4. Remove the blockage
5. Adjustment after inspection
6. Repair or replace
The oil pressure drops quickly 1. Oil suction filter screen blocked
2. Insufficient oil
3. Oil leakage
4. The oil in the crankcase is mixed with liquid refrigerant
5. The pump sucks in foam oil
6. Oil emulsion metamorphism
1. Remove and clean
2. Make up
3. Repair leakage after inspection
4. Extract the refrigerant
5. Oil change
Oil pressure too high 1. Improper oil pressure adjustment
2. Overfuel
3. The oil pipe is blocked
4. Oil pressure gauge not allowed
1. Readjust (release spring)
2. Oil discharge
3. Inspection and cleaning (8)
4. Replacement
The oil temperature is too high 1. Exhaust temperature too high
2. Poor oil cooling
3. Large differential pressure of compressor
4. Small assembly clearance
1. Eliminate the cause of pressure rise
2. Increase cooling water
3. Adjust the working condition
4. Readjustment
Motor overheating 1. Low voltage leads to high current
2. Insufficient refrigerant oil causes high current
3. Overload operation
4. The refrigerant is mixed with air
5. Insulation damage of motor winding
1. Check the reason
2. Come on
3. Do not overload
4. Exhaust air
5. Check and replace the motor

If you have any cold storage maintenance, after-sales service problems, you are welcome to contact us at any time, we will give you a timely reply!