Valves are easily damaged parts, which are worn, oxidized, corroded, and deformed due to long-term operation. If the valve fails, if it is replaced with a new one, it will not only affect the continuous production activities of the enterprise, but also increase investment. Time and cost have increased, which will inevitably affect corporate efficiency.
Valve damage loss
Repairing mechanical equipment such as valves to extend the service life and increase the wear-resistant and anti-corrosion properties of the equipment is called mechanical reengineering. Society needs sustainable development, and enterprises also need sustainable development, mechanical reengineering, green environmental protection, and reduction of extravagance and waste. This is a technology that cares about the sustainable development of humanities.
Valve is an indispensable mechanical component in fluid engineering. It controls the flow and direction of fluid. The flow, cutoff, diversion and flow adjustment of fluid are completed by various valves installed in the pipeline. There are many and complex application classifications of valves with different uses.
① The valves used in thermal power plants must be opened, closed tightly, leak-proof, erosion-resistant, and high-temperature resistant.
②Various valves on electric steam and water pipelines should firstly have good sealing performance and cannot leak; secondly, strength and regulation performance should be able to withstand the erosion of high-pressure steam and water, and valves of chemical water treatment systems should also be considered The problem of corrosion resistance.
③The running, leaking, dripping and leaking of the power station's gate will not only affect the efficiency of the unit, but more importantly, it will endanger the safety of people and equipment.
Valve repair
(1) Repair process
Plasma powder surfacing technology has a high cladding rate, is environmentally friendly, and can realize automated operation. Welder training can be used in about 1-2 days. Alloy powder surfacing welding is wear-resistant and corrosion-resistant, and has a longer service life than welding wire surfacing products. At the same time, it can avoid the smoke pollution and gas pollution of traditional electric welding, reduce the damage to the welder, and reduce the pollution of the enterprise.
(2) Reduce pollution
The repaired valve has good sealing performance and wear resistance. The function of the valve is restored, leakage is eliminated, and the leakage of contaminated media is avoided.
(3) Industry stop loss
The cost of valve repair is only about one-third of the purchase price, which is less time-consuming and quick to invest, which can prolong the service life of the valve. The cost of a plasma surfacing machine is only about 60,000, but the cost of pollution treatment is self-evident.
With the improvement of living standards, people pay more attention to the good of their own living environment, which is in contradiction with the increasingly polluted living environment. The safety of the company's production environment, the environmental protection of the production process, and the frugality of production requirements have a great impact on our energy resources and the environment, and the above has increased the company's environmental protection efforts. Enterprises should upgrade their crafts as early as possible and keep pace with the times.
Test literature:
[1] Feng Chunrong, Li Xianwei. Discussion on the necessity and process of valve repair in power plants. Shanxi Electric Power (Phase 1), 2003, Feb: NO1.
