Maintenance regulation of water supply and drainage equipment in property area

Chapter 1: Equipment maintenance system of sewage treatment station 1, necessity of equipment maintenance.

This sewage station is a 24-hour continuous operation facility. In order to ensure the normal operation of each treatment device and maintain good treatment effect, all kinds of equipment should be overhauled regularly.

2, the principle of equipment maintenance

In principle, equipment maintenance should be carried out in accordance with the product manual. It should include cleaning, adjustment and fastening, lubrication and corrosion protection. Maintenance work should also be recorded.

3, maintenance work content

3. 1 Daily maintenance-refers to patrol inspection and maintenance in operation.

3, 2 regular inspection and maintenance-regular downtime inspection and maintenance.

3. 3 Shutdown maintenance refers to the maintenance of standby units or idle equipment.

3, 4 seasonal maintenance-refers to the work that needs maintenance in summer, winter and rainy season.

4, equipment maintenance system

4. During the use of 1 equipment for a period of time, minor repairs, medium repairs or major repairs must be carried out. If specified by the equipment manufacturer, maintenance shall be carried out according to the manufacturer's regulations. If there is no regulation, in principle, regular inspection, maintenance and overhaul should be carried out according to the following cycles.

4. 1 and 1 roots blower: overhaul 15000 hours, and regular inspection and maintenance for 500 hours.

4. 1, 2 submersible sewage machines: overhaul 10000 hours, regular inspection and maintenance for 500 hours.

4. 1 and 3 corrosion-resistant centrifugal pumps: overhaul for 8,000 hours, and regular inspection and maintenance for 500 hours.

4. 1 4 Mechanical grille: overhaul for 8,000 hours, and regular inspection and maintenance for 500 hours.

4. Sludge pump 1 and 5: overhaul 10000 hours, and regular inspection and maintenance for 500 hours.

4. 1 and 6 check valves: overhaul for 6 years, regular inspection and maintenance for 500 hours.

4. 1 and 7 manual valves: overhaul for 2 years, regular inspection and maintenance for 500 hours.

5, daily maintenance work

5. 1 Clean the surface of the pump room and unit.

5, 2 should regularly check the water tank, impeller, remove the garbage in the pump.

5, 3 Pay attention to the oil level, oil quality and temperature of the bearing, and the lubrication of the bearing should be replaced regularly. Replace the pump oil every 500 hours and the bearing grease every 2000 hours.

5, 4 Check whether the fasteners of all parts are loose.

5, 5 regularly check and replace the packing.

5, 6 in the operation of the pump, attention should be paid to whether the dripping water at the packing is normal. A small amount of dripping water is allowed outside the packing, but no running water is allowed. This can be achieved by adjusting the tightness of the packing gland. Packing pressure plate should not be completely pressed in. When replacing the packing, measure the circumference L of the pump shaft, then lengthen it by about 25 mm, and cut both ends into inclined planes of about 45 degrees with hair. When put into the packaging tube, the two ends should overlap up and down to prevent water leakage. At the same time, the joints of upper and lower fillers should be staggered by 180 degrees. Generally, 1-6 layers of packing are added, and the pressure plate can be inserted into the depth of the packing cylinder near13, and the gap between the pressure plate and the pump shaft should be basically uniform.

Equipment maintenance management system

1, post operators and maintenance personnel should be familiar with the maintenance procedures of mechanical and electrical equipment.

2, deal with the structure of the building and all kinds of gate valves, guardrails, ladders, pipes, etc. Regular inspection, maintenance and anti-corrosion treatment, and timely replacement of damaged lighting equipment.

3. Check and fasten the connectors of various equipment frequently, and replace the wearing parts of the coupling regularly.

4, all kinds of pipeline gate valve should do regular opening and closing test.

5, should regularly check and clean the electrical control cabinet, and test its technical performance.

6, should regularly check the limit switch of electric gate valve, manual and electric interlock device.

7. After stopping the pump every time, check the sealing condition of the packing or oil seal and make necessary treatment. Fill or replace fillers, lubricating oil and grease as required.

8. If the wear of the wire rope exceeds 10% of the original diameter, or one of them has broken, any device equipped with the wire rope must be replaced.

9, all kinds of mechanical equipment in addition to daily maintenance, should also be according to the design requirements or the requirements of the manufacturer for major, medium and minor repairs.

10, maintenance of various mechanical equipment, should according to the requirements of the equipment, must ensure the technical requirements such as coaxiality, static balance.

1 1. Lubricating oil, grease, laboratory wastewater and other sundries replaced by maintenance equipment shall not be thrown into sewage treatment facilities.

12, maintenance of mechanical equipment, shall not be arbitrarily lap temporary power lines.

13. The testing, maintenance and cycle of lightning protection and explosion-proof devices for buildings and structures shall comply with the regulations of the electric power and fire department.

14, should regularly check and replace protective equipment such as fire fighting facilities.

Chapter II: Maintenance System of Construction Machinery and Equipment I. Division of Responsibilities

1. When the used mechanical equipment is returned, the inspector of the maintenance workshop of the equipment department will fill in the "Mechanical Equipment Storage Acceptance Sheet" and sign it with the user equipment member * * * to verify whether the equipment is damaged except for normal wear and tear, so as to clarify the responsibilities.

2. The maintenance workshop is responsible for the maintenance of mechanical equipment returned from the construction site to ensure the normal operation of the equipment when it is put into use again.

3, according to the technical condition of the equipment, determine the repair category and fill in the construction equipment maintenance records, and its normal costs are spread into the project cost. If the mechanical equipment is damaged due to violation of equipment maintenance regulations and abnormal use, the repair cost shall be borne by the user.

4. For the equipment that has been out of the library and put into use at the construction site, the operators are responsible for daily maintenance, and the equipment members and maintenance classes of the user unit are responsible for regular maintenance.

5. When the repaired equipment leaves the warehouse, it shall be signed by the equipment department and the user * * *, and the Demand Form for Construction Equipment and Mechanical Equipment shall be filled in. Unqualified equipment shall not be used out of the warehouse.

6. After the equipment leaves the warehouse, the expenses such as daily maintenance and regular maintenance shall be borne by the user; If the project cannot be repaired and maintained, it can be entrusted to the maintenance workshop of the equipment department for maintenance, and the expenses incurred shall be borne by the user.

Second, the repair category and method

1. Overhaul: There is only one reference for the overhaul interval of mechanical equipment, and whether it is necessary to overhaul mainly depends on whether its technical condition meets the technical terms of overhaul. If overhaul is needed, the construction equipment overhaul plan shall be filled in and submitted to ministry of materials and equipment for approval.

A the technical conditions for overhaul of mechanical equipment are as follows:

1) engine

A, the dynamic performance is significantly reduced (generally reduced by more than 20%)

B, the engine has a serious phenomenon of burning oil (the engine oil consumption exceeds the quota 1 times).

C after the engine gets hot, the cylinder pressure is too low (lower than 60% of the standard).

2) Mechanical part

A, the main parts of the transmission mechanism have reached the limit wear degree, which makes the mechanical equipment have the phenomenon of deflection, abnormal sound or impact jitter during operation.

B, steering control mechanism wear, clearance is too large, control failure.

C, the gear shaft of the gearbox is seriously worn, and it is difficult to shift gears or often jumps.

D. the frame body is severely deformed or cracked.

The walking mechanism is badly worn and can't work normally.

F, brake machinery wear is serious, operation failure, braking ability decline or failure, unable to adjust.

G, serious wear and tear of working device, operation failure, unable to complete normal workload or operation accuracy can not meet the requirements.

None of the above situations can be eliminated by adjustment and minor repairs. Continued use will lead to serious accident consequences. Only through disintegration and overhaul can the technical performance of mechanical equipment be restored. If more than two assemblies need to be repaired, it can be regarded as an overhaul, and if 1 assembly needs to be repaired, it can be regarded as a medium repair.

B. Mechanical equipment repair methods: vehicle-mounted repair method and assembly exchange repair method.

C, overhaul acceptance

1) external acceptance inspection: mainly check the completeness of mechanical equipment assembly, including lubrication, firmness and leakage.

2) Idle running or test load test: mainly test the dynamic performance of mechanical equipment, including starting performance, braking performance and safety performance, and verify whether the mechanical equipment meets the technical requirements for normal use. Fill in the "Mechanical Equipment Trial Operation Record".

3) Review after mechanical test: mainly review whether there is any abnormal phenomenon after the test, and eliminate the defects and faults found in the test and make necessary adjustments.

4) After the overhaul acceptance, the "Mechanical Equipment Acceptance Record" and "Mechanical Equipment Trial Operation Record" shall be filled in.

D, after overhaul, the equipment should meet the requirements (refers to the requirements that the equipment should meet within the 7-day warranty period).

1) The engine should run normally after hot running, without abnormal noise such as knocking on the cylinder, burning tiles due to cylinder pulling, oil pressure and water temperature conforming to regulations, normal exhaust smoke and normal output.

2) The clutch is engaged smoothly and does not swing.

3) Each gear box includes a transmission, a transfer case, a reducer, a differential and various transmission shafts. During operation, there is no abnormal sound, no overheating of each bearing, no oil leakage of various oil seals, no automatic gear skipping and gear shifting, and no difficulty in gear shifting.

4) The operating mechanism runs smoothly without deviation.

5) The brake system is worn normally, without overheating, and its performance is stable and reliable.

6) The operating mechanism and safety device are flexible, safe and reliable.

7) The working device has no serious wear and abnormal noise.

8) The frame is free from deformation and rupture.

9) No-load current and temperature rise of motors and electrical equipment shall meet the requirements.

10) All kinds of instruments indicate normal, sensitive and reliable.

E. Guarantee responsibility (seven-day guarantee period)

1) During the warranty period, if the equipment is seriously faulty or damaged due to negligence in repair, the repair workshop of the equipment department will repair it free of charge.

2) See the overhaul requirements for other requirements.

2, medium repair:

1) medium repair technical conditions: one of the technical conditions for overhaul of mechanical equipment is medium repair.

2) See the overhaul requirements for other requirements.

3. Minor repair: it is a kind of maintenance repair, mainly to eliminate temporary faults and local damage of mechanical equipment in use and maintain the normal operation of the equipment.

4. Maintenance:

1) primary maintenance: refers to lubricating oil (such as calcium-based grease, gear oil, engine oil, etc. ) is added to the parts of conventional equipment that need lubrication and maintenance. Lubrication device, lubrication point, lubrication cycle, lubricating oil type and lubrication method shall be implemented in accordance with the equipment manual.

2) Secondary maintenance: the adjustment, firmness and anticorrosion of mechanical equipment are the responsibility of equipment technicians and machine maintenance classes (simple maintenance is the responsibility of machine operators).

3) Three-level maintenance: Disassembly, cleaning and troubleshooting of the assembly shall be the responsibility of the machine maintenance class of the equipment technician.

Chapter III: Maintenance system and maintenance principles and requirements of machinery and equipment 1, 1 In order to ensure that machinery and equipment are always in good technical condition and can be put into operation at any time, reduce downtime, improve the intact rate and utilization rate of machinery, reduce mechanical wear and tear, prolong the service life of machinery, reduce the operation and maintenance cost of machinery and ensure safe production, it is necessary to strengthen the maintenance of machinery and equipment;

1 2 Mechanical maintenance must follow the principle of "paying equal attention to maintenance and prevention", be carried out regularly and compulsorily, and correctly handle the relationship between use, maintenance and repair, and it is not allowed to just repair without maintenance;

1, 3 each team must do a good job of maintaining all kinds of machinery according to the mechanical maintenance procedures and maintenance categories without undue delay. Under special circumstances, with the approval of the competent special worker, the maintenance can be postponed, but generally it shall not exceed half of the prescribed maintenance interval;

1 4 The maintenance of machinery shall ensure the quality, and shall be carried out item by item according to the specified items and requirements, without omission or guarantee. Maintenance items, maintenance quality and problems found in maintenance should be recorded and reported to the department for special work;

1 5 Maintenance personnel and maintenance departments should achieve "three inspections and one handover (self-inspection, mutual inspection, full-time inspection and one handover is qualified)", constantly sum up maintenance experience and improve maintenance quality;

1 6 The Asset Management Department regularly supervises and inspects the mechanical maintenance of each unit, and checks the maintenance quality regularly or irregularly, rewarding the excellent and punishing the poor.

2 Implementation and supervision of maintenance operations

2. 1 Mechanical maintenance adheres to the "crossing" operation method with "cleaning, lubrication, adjustment, fastening and anti-corrosion" as the main content, implements the system of daily maintenance and regular maintenance, and strictly follows the cycle and inspection and maintenance items specified in the instruction manual.

2, 2 routine maintenance is in the process of cleaning and inspection before and after the mechanical operation, mainly check the key, vulnerable parts (such as mechanical safety devices), coolant, lubricant, fuel quantity, instrument instructions, etc. Daily maintenance should be completed by the operators themselves, and the mechanical daily maintenance records should be filled in carefully.

2.3 First-class maintenance: generally, cleaning, fastening and lubricating operations are carried out, and some adjustment operations are carried out to maintain mechanical integrity and technical status. According to the maintenance plan, the asset management personnel of the employing unit shall issue the Notice of Maintenance and Lubrication of Mechanical Equipment, which shall be filled in by the operator himself and inspected and supervised by the shift leader of the operation team.

2.4 secondary maintenance: it includes all the contents of primary maintenance, focusing on inspection and adjustment, and keeping all mechanical components, mechanisms and parts in good working performance. The notice of mechanical equipment maintenance and lubrication issued by the asset management personnel of the employer is mainly completed by the operator himself. When the operator has difficulty in completing, he can entrust the repair department to be inspected and supervised by the asset manager of the employer and the monitor of the operation class.

2, 5 other maintenance

2, 5, 1 seasonal maintenance: the main contents are to replace the lubricating oil and fuel oil suitable for the season, take anti-freezing measures and increase anti-freezing facilities. The user department shall organize and arrange the inspection and supervision of the monitor.

2, 5, 2 Running-in maintenance: After the running-in period of new machines and overhauled machines is over, running-in maintenance must be carried out, mainly including cleaning, fastening, adjustment and replacement of lubricating oil, which is completed by the user department, inspected by the asset manager and supervised by the asset management department.

2, 5, 3 Transfer and maintenance: Before the machinery is transferred to the construction site, it should be transferred and maintained, and the operation content can be maintained according to the technical condition of the machinery, and corrosion protection can be carried out if necessary. The handover and maintenance shall be arranged and implemented by the mechanical demolition unit, inspected by the project department and the asset manager, and supervised by the asset management department.

2, 5, 4 Shutdown maintenance: Maintenance of stopped and sealed machinery, mainly cleaning, anticorrosion and moistureproof. Inventory machinery is maintained by the asset management department, and the rest of the machinery is maintained by the user department.

2, 6 after the completion of the maintenance plan to go through careful inspection and acceptance, and fill in the relevant information, so that the record is complete and true.

Article 4: Maintenance system of water supply and drainage equipment Article 1 Operation inspection system:

1. The personnel on duty should check their own equipment twice a day according to the patrol route and make records according to the checklist. The inspection contents include:

(1) Whether the water levels in the upper and lower pools are normal and whether the automatic water injection devices in each pool are normal;

(2) Whether the switch position of each valve is normal and whether the fire damper is in normal position;

(3) Whether each valve pipeline leaks and whether the pressure gauge reading is normal.

2. The personnel on duty should conduct on-the-spot inspection during the operation of each pump to understand the working conditions of the pump;

(1) Whether the pressure gauge reading is normal;

(2) Whether the bearing temperature is normal;

(3) Whether the motor junction box is hot;

(4) Whether the water pump unit has vibration and abnormal noise;

(5) Check the tightness of the coupling packing to eliminate abnormal water leakage.

Article 2 Monthly maintenance:

1, emergency test of standby system:

(1) The standby water supply pump and fire water pump in the water pump room were put into trial operation;

(2) Trial operation of submersible sewage pump in basement;

(3) Drain the water in the dead pipe.

2. Check whether the main valves of water supply, drainage and fire water pipelines are in normal position, and turn the valves that are not moving at ordinary times.

3, clean the pump room, remove the dust on the surface of the pump and motor.

Article 3 quarterly maintenance:

1. Clean and oil the lead screw of the main valve.

2, remove the underground sewage, well sundry, make the drainage pump work smoothly.

3. The terminal of the water pump motor is firm, and the motor is tested.

4. Test the working state of each pump control box, and replace the bad indicator light and abnormal accessories.

Article 4 Annual maintenance:

1, life and fire pump:

(1) Check the wear of the sealing ring, measure and record the movement clearance, and replace or repair it if necessary;

(2) Replace the sealing filler;

(3) Check the corrosion of all bearings and replace the bearing oil;

(4) check the curve and make records;

⑤ Check the wear of the coupling hinge and shaft;

(6) Check the corrosion of the pump blade pump shell, and remove the rust and paint on the pump shell and pump frame;

(7) Check whether the pressure gauge is normal;

(8) Annual maintenance of the motor;

Levies Check the working performance of the pump.

2, sewage submersible pump:

(1) Remove the pump cover, measure and record the end clearance, and repair it if necessary;

(2) Check the integrity and sealing performance of the axial sealing device;

(3) Check the corrosion of the pump blade pump shell, and remove the rust and paint on the pump shell;

④ Check whether the hose is in good condition;

(5) Annual maintenance of the motor;

(6) Check the working performance of the pump.

3. Pipeline:

(1) Conduct a comprehensive inspection of the whole pipeline system to judge the reliability of the pipeline system;

(2) Check whether the rust protection of all pipeline valves is in good condition, and carry out paint maintenance when necessary;

(3) Replace corroded and aged seals and pipelines that can no longer be used.

Chapter V: 1 Maintenance Rules of Water Supply and Drainage Equipment in Property Area, Purpose

Deal with the faults of water supply and drainage equipment (facilities) in time, maintain the equipment, and ensure that the equipment performance is always in good operation or standby state.

2. Scope of application

Maintenance of domestic pumps, fire pumps, spray pumps, booster pumps, sewage pumps, air conditioning pumps and other water supply and drainage equipment (facilities) and related valves and pipelines in the property area.

3. Responsibility

3. 1 The project manager is responsible for the formulation of maintenance work plan, the guidance, inspection and supervision of maintenance work, and the liaison work of outsourcing maintenance.

3. Two directors of the management office are responsible for approving the maintenance work plan.

3, 2 hydraulic is responsible for the maintenance of water supply and drainage equipment (facilities).

4 working procedures

4, 1 water supply and drainage equipment maintenance procedures

4. 1 and 1 The maintenance team is responsible for the maintenance of water supply and drainage equipment (facilities).

4. 1, 2 Every year in 65438+February, the project manager makes the annual equipment maintenance plan for the next year, and makes the medium repair and overhaul plan according to the operation situation.

4. The maintenance team of13 shall maintain the equipment according to the requirements of the annual equipment maintenance plan, and record the maintenance in the facility maintenance table and summarize it in the facility/equipment maintenance record.

4. 1, 4 The failure of water supply and drainage equipment generally does not exceed 8 hours. If the failure of important components cannot be solved within 8 hours, the cause of the failure, the solution and the solution time should be reported to the management office in writing.

4. 1 5 Any failure of water supply and drainage equipment (facilities) at night, which does not affect the life and work of users and will not cause serious consequences, can be repaired by the early shift hydraulic workers.

4. 1 6 The project manager provides work guidance and inspection and supervision.

4. 1, 7. When it is necessary to stop water for maintenance, do a good job of prior notice and explanation.

4, 2 water supply and drainage equipment (facilities) fault general processing procedures

4, 2, 1 When the water supply pump fails, the hydraulic engineer on duty should immediately start the standby pump, and then immediately notify the management office to organize relevant personnel to maintain it in time.

4, 2, 2 When the sewage pump fails, first check the cause of the failure, and if the control circuit fails, check and eliminate it; If the water pump is out of order, please repair it.

4, 2, 3 water supply network failure, water leakage affects the normal water supply, the hydraulic on duty should immediately close the upper valve, promptly notify the management office to organize relevant personnel to repair, and do a good job of explaining the affected users.

4, 2, 4 Sewage wells, rainwater wells and other blockages cause poor drainage and flooding. , immediately call maintenance personnel to dredge.

4, 3 water supply and drainage equipment (facilities) inspection and maintenance table

Check the maintenance contents (including the materials used) by serial number.

0 1 The appearance of the water pump unit and its accessories is clean and scrubbed, and the pressure gauge indicates abnormality. Check and replace the main circuit and control circuit of irregular motor. Test, check and tighten the shaft end seal of the water pump for half a year. If the leakage exceeds the standard, replace the bearing of the motor with irregular mechanical seal and fill the pump bearing.

02 If there is any leakage in the appearance of the pipeline, repair the leakage; Such as rust, rust removal, anti-rust paint and topcoat, irregular valve appearance, valve stem leakage and bolt pressing; Such as rust, rust removal, irregular painting of antirust paint and topcoat.

5 Work content

5. 1 The domestic water pump, air-conditioning cooling water pump and air-conditioning chilled water pump are fully maintained once every six months.

5.2 The fire pump, spray pump and lift pump shall be put into trial operation once a year in March, with a running time of 1 minute, and shall be overhauled once a year.

No.5 and No.3 sewage pumps shall be overhauled once a year.

5.4 During the maintenance of each water pump, valve, pressure gauge and pipeline, etc. Connect with the pump within 5 meters of the pump body.

5, 5 pump body maintenance

5, 5, 1 Check that the pump body should be free from damage, the nameplate should be complete, the water flow direction should be clear, the appearance should be neat, and the paint should be in good condition.

5, 5, 2 Check and replenish the grease. If the oil is discolored or has impurities, it should be replaced.

5.5.3 Check the seal of the shaft end of the water pump. If the water leakage exceeds 65,438+00 drops/minute, remove the mechanical seal and check it. If serious wear or cracking occurs, prepare to replace the mechanical seal.

If damaged, replace the 5, 5 and 4 coupling bolts and rubber washers.

5, 5, 5 Tighten the foundation screws and carry out rust prevention treatment.

5, 5 and 6 Due to the frequent operation of domestic water pump and air conditioning water pump, the bearings at both ends of the coupling should be removed for cleaning or replacement every year.

5, 6 water pump motor maintenance

5, 6, 1 Appearance inspection shall be neat, nameplate shall be complete, and grounding wire shall be well connected.

5, 6 and 2 Dismantle the wire connector in the motor junction box, and shake and measure the insulation resistance between phases and relative ground of the motor winding with a 500 Ⅴ megger, which shall be no less than 0 and 5 meggers.

The 5, 6 and 3 three-phase wires and connectors in the motor junction box shall be firm and firm, without aging.

5.7 Maintenance of related valves, pipelines and accessories:

5, 7, 1 Each valve switch shall be flexible and reliable, with no leakage inside or outside.

5, 7, 2 Check valves should be flexible, and there is no leakage inside and outside the valve body.

5, 7 and 3 pressure gauges indicate accurately and the dial is clear.

5, 7, and 4 pipes and accessories shall be neat and beautiful in appearance, free from cracks, and the paint shall be complete and free from falling off.

5, 8 control cabinet maintenance

5, 8, 1 Disconnect the main power supply of the control cabinet, check all transfer switches, and the start and stop buttons should be flexible and reliable.

5, 8, 2 Check whether the air switches, contactors, relays and other electrical appliances in the cabinet are in good condition, and tighten the wiring screws of the contact terminals and wiring terminals of each electrical appliance.

5, 8 and 3 Clean the dust inside and outside the control cabinet.

5, 8 and 4 Turn on the main power supply and check whether the power indicator light is normal.

5, 8, 5 after maintenance, start the water pump according to the specified requirements, and observe whether the ammeter and indicator light are normal.

5, 8 and 6 Observe whether the water pump runs smoothly, without obvious vibration and abnormal sound, the pressure gauge indicates normal, and the electrical appliances in the control cabinet have no bad noise.