The solvent recovery unit operates continuously all the year round, and the "passive maintenance" of which link is broken and where to repair it often turns into shutdown for emergency repair: only when the condenser pressure difference is abnormal can the heat exchange surface be found to be fouled, and only when the seal leaks can it be replaced. The function of the annual maintenance plan is to arrange the things to be done into the calendar according to the cycle, interspersing the large and small maintenance, and fully using the shutdown window, so that the device can always operate in a normal state. This article explains how to compile, implement and record the annual maintenance plan, and explains the maintenance supporting services of Luoyang Wo Hong.
According to the system, the condensing system includes cleaning and inspection of heat exchange surface, confirmation of operation state of refrigerant unit, descaling of water pump and waterway; Fan and pump include lubrication, bearing and belt inspection, vibration confirmation; Pipeline and valve include seal status, filter cleaning, low-point drainage device dredging; Electrical and instrument include insulation inspection, sensor and transmitter calibration, and appearance confirmation of explosion-proof parts; the belt adsorption unit also includes adsorbent condition assessment and regeneration system inspection. The list of items shall be subject to the actual configuration of the device, passing one by one without missing items.
The cycle is divided into four gears: daily patrol inspection is carried out every shift or every day to see the temperature level, pressure difference, liquid level and abnormal noise; Monthly maintenance arranges light-weight items such as filtration cleaning, fastening and drainage. Quarterly special treatment of heat exchange surface inspection, lubrication and grease change, which require short-term shutdown; The annual major maintenance arranges seal replacement, instrument calibration and system pressure test in one stop window. The shutdown window is aligned with the production plan in advance, and maintenance follows the production rhythm, rather than production being interrupted by maintenance.
After the plan is scheduled, it will be publicized on the wall, one item will be sold, and the emergency repair temporarily inserted will also be backfilled into the record, so that the plan will always reflect the real state.
Each maintenance record four things: what to do, what to change, what problems found, what to pay attention to next time. Records shall be filed according to the device, and summarized and reissued at the end of the year: spare parts consumption shall be compared with inventory, whether the maintenance period of high-risk parts shall be shortened, and which items can be combined. The conclusion of the review will directly revise the plan for the next year, and the maintenance plan will be more and more in line with the actual situation of the device.
| Maintenance level | Typical project | Arrangement proposal |
|---|---|---|
| Daily inspection | Temperature level, differential pressure, liquid level and abnormal sound | Every shift or every day, abnormal report |
| Monthly maintenance | Filter cleaning, fastening, low point drainage | According to the running time schedule, do not stop production |
| Quarterly Special | Heat exchange surface inspection and bearing lubrication | Short-time shutdown combined with production clearance |
| Annual guarantee | Seal replacement, instrument calibration and pressure test | Centralized Discontinued Window Arrangement |
The service is contracted and scheduled on an annual basis, and the maintenance window is locked in advance to avoid collision with the production peak.
It shouldn't be the same. According to the previous year's operating data, fault records and spare parts consumption review revision, the high-risk parts of the fault encryption cycle, the state of stability of the appropriate merger, the more the plan is more accurate.
Daily inspection and light-weight items will not affect production and will not be pushed. Key items involving seals and safety devices are not recommended to be postponed. General items can be moved to the window, but they should be recorded in the ledger and supplemented as soon as possible.
Daily inspection and monthly light-weight project enterprises can do it themselves. Quarterly special items, instrument calibration and annual insurance proposals are undertaken by manufacturers, and tools, spare parts and experience are more complete.
Frequently consumed parts such as seals and filter elements are prepared according to the maintenance plan; large parts are purchased according to the annual plan to avoid long-term backlog. The spare parts list is set together with the maintenance plan.
This article by LuoyangWohong PetrochemicalEquipment Co., Ltd. arranges that the company provides design and manufacture of solvent recovery devices, annual maintenance plan preparation and operation and maintenance hosting services for the chemical and pharmaceutical industries. If you need maintenance evaluation or contract arrangement, please contact and exchange.
Mr. Li 13526990215
Hotline
