Rod pump oil recovery is the most widely used method of mechanical oil. At present, as the oilfield enters the middle and late stages of development, the liquid supply capability of the oil well deteriorates, the pumping depth increases year by year, the downhole tubular string is more complicated, the eccentricity of the pipe rod is serious, the corrosiveness of the produced fluid is increased, Chemical corrosion and electrochemical corrosion exist at the same time; In addition, as the oilfield enters the high water cut period, the increase of water content reduces the lubricity of the well fluid and increases the friction coefficient; the proportion of wax content in the crude oil in the formation rises continuously, Increase, work load increased. These have exacerbated the rod pump failure. Pump failure mainly due to the following:
Wear and tear: The pump barrel and plunger are the two core components of the pump , constitute a moving friction pair, the friction between the normal wear and tear is inevitable.
Sanding Buried Sanding Card: The increasingly severe formation sand causes abnormal abrasion and scratches caused by friction between the plunger and the pump barrel. A large amount of sand will fill the fixed valve and cause sand burying and sanding card .
Corrosion: The corrosive medium in well fluid will cause serious corrosion damage to all parts of the oil pump. In severe cases, the plunger is perforated and the plunger chrome layer is off.
The above failure of a serious impact on the normal production of the oil field, so check pump cycle shortened. In these failures, 70% of pump failures result from wear and tear between the pump barrel and the plunger. Therefore, the main idea to solve the pump failure problem is to improve the abrasion resistance of the cylinder and plunger friction pair.
Under normal circumstances, to improve the wear resistance of a workpiece surface is the main method of surface treatment to improve the hardness of the workpiece surface, but this will inevitably cause greater wear and tear pairs of friction damage and careless, resulting in the overall friction can not improve the service life .
In response to the above, Anton Oil Technology (Group) Co., Ltd. successfully developed AOF bidirectional protection pump, the pump by optimizing the matching, the bi-directional protection of the alloy material is applied to the plunger surface, the plunger surface to improve wear At the same time, effectively reduce the wear on the inner surface of the pump cylinder, thereby enhancing the overall life of the friction pair.
The main components of the alloy material include chromium and nickel, these two elements coexist and remelting process can be obtained single-phase austenite microcrystalline, with excellent corrosion resistance; chromium in the remelted surface layer Thin dense chromium-enriched dense passivation film, with excellent oxidation resistance; alloy materials, the right amount of silicon, boron and other non-metallic elements with nickel, chromium to form a hard silicide and boride, these hard points Dispersion in the soft nickel-chromium matrix, play the role of dispersion strengthened, as a whole to improve the hardness of the coating, but also improve the coating anti-wear properties. In addition, the coating also contains anti-friction elements, the anti-friction element in the plunger and pump cylinder friction occurred during the transfer, the pump cylinder to form a uniform distribution of the surface of the sheet-shaped anti-wear elements, play a solid lubricant Reduce the friction coefficient and protect the pump cylinder.
The use of new materials technology to improve the wear resistance of the pump as a whole, while less structural changes to ensure the overall structure and specifications of the AOF bidirectional pump protection consistent with the ordinary pump, which makes us have reason to believe that AOF bidirectional protection pump Will replace the ordinary pump and get more widely used as a tool to improve the technological level of oilfield development.
Elevator Modernization (or Lift Modernisation) is the process of upgrading the critical parts of the elevator in order for it to be able to handle new technology, have better performance, improve safety, and even give the aesthetics an up-to-date appeal
Most elevators are built to provide about 20 years of service, as long as service intervals specified and periodic maintenance/inspections by the manufacturer are followed. As the elevator ages and equipment become increasingly difficult to find or replace, along with code changes and deteriorating ride performance, a complete overhaul of the elevator may be suggested to the building owners.
A typical modernization consists of controller equipment, electrical wiring and buttons, position indicators and direction arrows, hoist machines and motors (including door operators), and sometimes door hanger tracks. Rarely are car slings, rails, or other heavy structures changed. The cost of an elevator modernization can range greatly depending on which type of equipment is to be installed.
Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment to conform to current codes.
Components needs to be replaced in different elevator modernization plan
| Component | Scheme of elevator modernization plan | |||
|---|---|---|---|---|
| Refurbishment work | Partial modernization | Full modernization | Full replacement | |
| Elevator car | ||||
| Sling | No | No | by building owners | Yes |
| Door operator | No | by building owners | Yes | Yes |
| Cab design | by building owners | by building owners | Yes | Yes |
| Car doors | by building owners | by building owners | Yes | Yes |
| Car fixtures | Yes | by building owners | Yes | Yes |
| Wedges connected to the governor | No | No | Yes | Yes |
| Additional phone/intercom if they don't equipped | by building owners | Yes | Yes | Yes |
| Traveling cable | No | Yes | Yes | Yes |
| Hydraulic rams | No | No | No | Yes |
| Wire ropes | No | by building owners | Yes | Yes |
| Shaft | ||||
| Counterweight | No | No | No | Yes |
| Guide rails | No | No | No | Yes |
| Buffers | No | No | Yes | Yes |
| Electrical components | No | No | No | Yes |
| Tapehead | No | Yes | Yes | Yes |
| Limit switches | No | Yes | Yes | Yes |
| Wiring | No | Yes | Yes | Yes |
| Compensations | No | No | No | Yes |
| Lobby | ||||
| Shaft door components | by building owners | by building owners | Yes | Yes |
| Shaft doors | by building owners | by building owners | by building owners | Yes |
| Hall fixtures | Yes | by building owners | Yes | Yes |
| Machine room | ||||
| Machines | No | by building owners | Yes | Yes |
| Controllers | No | Yes | Yes | Yes |
| Removal of the selector | by building owners | Yes | Yes | Yes |
| Overspeed governor | No | No | Yes | Yes |
| Additional unintended car movement protection device if they don't equipped | by building owners | by elevator safety code in countries | ||
| Backup battery or uninterruptible power supply | No | Yes | Yes | Yes |
Benefits of elevator modernization
Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment (such as double brake system, unintended car movement protection device on the brake system etc.) to conform to current codes.
With CEP traction elevator modernization, we use the existing elevator structure while upgrading the ride quality and reliability with state-of-the-art components. Upgrade to a CEP closed loop door operator or a sophisticated, energy saving VVVF inverter.
CEP traction elevator modernization can include:
- CEP Microprocessor Based Control System
- CEP Microprocessor Based Efficient Dispatch System
- Energy Efficient AC Drives or SCR Drives on Existing AC Gearless Machines
- Traction Machines (Geared / Gearless)
- Rope Brake System
- CEP Closed Loop Door Operating System
- Car & Hall Pushbutton Fixtures & Indicators
- Car & Counterweight Roller Guides
- Seismic Upgrades
- Security Upgrades
- Cab Interior Renovations or Cab Replacement
NOTE: Complete tear-out modernizations are available.
Contact us TODAY for Right Modernization Package Available
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Elevator Modernization
Elevator Modernization,Lift Modernisation,Passenger Lift Modernization,Passenger Elevator Modernization
CEP Elevator Products ( China ) Co., Ltd. , https://www.elevatorcomponent.nl
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