1. New concept of valve maintenance
As we all know, a large number of valves are used in all pipeline networks that transport liquid and gas media in the industry. It is an indispensable component in the pipeline transportation system. Its quality directly affects production and safety. The problem is that they also It is precisely an indispensable part, because the sealing surface of the valve will be damaged by pits, scratches, spots, etc. due to the wear and tear of the valve switch, the wear and corrosion of the medium flow, and the press of the magazine. According to statistics, 80% of valve leakage is caused by the first damage to its sealing surface. Valve leakage will cause the following consequences:
A: Transmission media loss valve repair equipment
B: Environmental pollution
C: Production failure, such as the leakage of the control valve will cause the composition of the chemical product to be inaccurate
D: Major accidents and disasters, such as leakage of safety valve will cause explosion, leakage of toxic gas, etc.
There are two solutions to the problem of valve leakage: one is valve replacement; the other is valve maintenance.
There have been various debates on the advantages and disadvantages of these two methods in history, but the view consistent with high-pressure, high-temperature special valves and large-diameter valves is that they can be repaired and repaired, because the disadvantages of replacing valves are:
1 The delivery period of new valves is long, generally from 6 months to one year; valve maintenance equipment
2 If pre-determined, warehouses and collateral funds are required;
3 The new valve is expensive;
4 The resulting environmental pollution and the great waste of energy and materials, because most of the valves are only damaged by the sealing surface;
5 Cutting welding, welding, stress relief, straightening and other processes to replace the welding valve are more time-consuming and laborious.
2. Introduction to Valve Repair Equipment
For a long time, most of the domestic valve industry needs to be replaced with new ones. The replaced valves are thrown away or sold as waste products, especially in the industry that uses flanged valves, and the replaced high pressure, high temperature, large valves I want to repair, but I don't know how to repair the valve. Most are still in the manual repair stage. It can be said that in China's valve repair industry, the waste and the available benefits are huge; at the same time, it also brings a lot of room for development in the valve repair industry;
In recent years, as various units have gradually started independent economic accounting to reduce costs, from management personnel to first-line valve repair workers have gradually realized the importance of valve repair, because the money saved in this respect is extremely considerable . However, valve repair does not mean simple valve repair, but also includes the use of correct valve repair methods, professional valve repair and maintenance technology and excellent grinding repair valve repair equipment.
3. Valve repair equipment-CXFM series valve repair equipment
The Hengyu Electric Power and Effectiveness Application Technology Research Institute jointly developed the CXFM valve repair equipment series to solve the vacancy in the valve repair equipment and valve repair equipment market. The valve repair equipment is helpful to reduce the cost of the enterprise and reduce unnecessary waste. Valve repair The equipment is beneficial to prolong the use time of products and reduce the occurrence of safety accidents. At the same time, our center provides technical training of valve repair equipment and common knowledge of valve maintenance to help enterprises reduce production costs in safe production.
Eight sets of CXFM series valve repair equipment, covering an area of ​​40 square meters, are controlled by computer, 220V lighting power supply, the total weight of the equipment is 2500kg, CXFM series valve repair equipment includes: CXFM-350 fixed valve repair machine, CXFM-600 Fixed valve repair machine, CXFM-250 valve seat valve repair machine, CXFM-600 gate valve repair machine, CXFM-300 gate valve repair machine, CXFM-500 valve repair machine, CXFM-150 angle valve repair machine, Manual test press and corresponding grinding equipment.
A total of 63,800 yuan for eight sets of equipment
CXFM valve repair equipment series equipment can repair various valves of DN15-600mm and PN0.1-32MPa. CXFM valve repair equipment has valve repair equipment and valve repair technology. It has been on the market for several years and has been well received by domestic enterprises and individual customers. CXFM valve maintenance equipment is well designed, advanced valve maintenance technology, easy to use and operate, 220V lighting power frequency conversion speed regulation, wide variety of valve maintenance, high valve maintenance efficiency and strong practicability. After using CXFM valve repair equipment, the sealing test pressure can reach the GB13927 national standard.
The company has a set of valve repair equipment that can reduce the company's procurement cost and reduce the waste of the company's production equipment, which is conducive to the extension of the service life of the company's valve equipment products. Increased awareness and training of valve repair professionals are conducive to the guarantee of safe production for enterprises.
Various industries in China are inseparable from valves, power plants, fertilizer plants, chemical plants, smelters, paper mills, pharmaceutical plants, water supply, heating companies and other markets. Individual customers have a set of valve repair equipment. If they choose to become a valve repair expert through learning and training, they can build a valve repair plant. The investment is small and the profit is large, and there will be a huge profit every year.
Fourth, the importance of valve maintenance and valve maintenance
Due to the lack of knowledge on valve maintenance, at present, only nuclear power plants in China can basically repair all valves during each shutdown inspection. Broken repair is a kind of maintenance-free repair, which is extremely unfavorable for the safe operation of the equipment and the service life of the valve. The potential emergency shutdown accident is extremely dangerous, and the resulting losses are also huge. Therefore, industrial high-temperature and high-pressure valves preventive valve maintenance and valve repair are the most economical and reliable ways to solve valve leakage and extend service life.
If the valve leaks without maintenance, it will often be very damaged once it leaks. This not only increases the difficulty of valve maintenance, but also increases the cost of valve maintenance. Therefore, for valve maintenance workers, not only must they have corresponding awareness, but also the mentality of valve maintenance, for example, to check the valve, such as the sealing of the valve, and the damage of various components. The key for valve repair workers in various industries is to perform valve repair immediately when the valve is found to be leaking for the first time, because the circulating medium can be caused in a short time even in the case of extremely small sealing surface damage The large area of ​​the sealing surface is damaged, resulting in expensive valve repair costs. Only the well-maintained valves can be repaired in time to improve the service life of the damaged valves, so that the valves can better serve the enterprise and create more value.
Therefore, for the well-organized and managed valve repair work, not only relevant personnel must have corresponding awareness, but more importantly, preventive and maintenance measures, that is, regular inspection of the valve.
Any industrial product is created and developed to solve the problems of the industrial world. The main problem of the CXFM series valve repair equipment products and technologies is to solve the industrial valve leakage problem. The quality of the valve directly affects production and safety. The problem lies in their It is also an indispensable component. The metal sealing surface of the valve will form pits due to valve switch wear, media flow wear and corrosion, magazine extrusion, etc. According to statistics, 80% of valve leaks are due to Caused by the first damage to its sealing surface.
Years of on-site time experience and facts have proved that correct maintenance and valve repair of valve equipment can bring many benefits to users because:
The cost of repairing the valve repair equipment only accounts for 5%-35% of the cost of replacing the new valve; the implementation of spare parts inventory for all online valves is expensive and takes up a lot of money; the replacement of the valve for the long delivery period will lead to the production of the enterprise Suffering huge or expensive losses; it is simpler and more practical for welding valves to use online valve repair equipment than replacing the valve. The steps for replacing the valve are as follows: remove the insulating material on the valve-> remove the valve from the pipeline Remove the upper cut welding-> send the valve to the repair shop-> process the welding end of the spare valve on the pipeline in the workshop-> weld the valve into the pipeline. If there are no spare parts for the valve, you need to ask the valve repair company to repair the damaged valve in the workshop of the enterprise or in its repair workshop, and then re-weld it into the pipeline. The entire process should also include the final inspection of the weld and reassembly of the valve's thermal insulation material, etc.
For large high-pressure valves, the process of replacing the valve can last for days or even weeks. If the valve is repaired using convenient valve repair equipment, the working time is only a few hours or a few days at most. Please compare the following examples:
For a high-pressure gate valve with a nominal diameter of DN200-300mm, depending on the degree of damage, the repair of on-site valve repair equipment only takes 1-3 days at most, while the repair of valve repair equipment in the workshop, including the entire valve repair preparation process, requires 3- 4 weeks. For each power plant with a capacity of about 300 megawatts, if the price of electricity averages 0.5 yuan / kWh, the power plant will lose 150,000 yuan per hour, 3.6 million yuan per day, and 36 million yuan in ten days. According to our actual experience, we can also provide users with more practical experience in valve maintenance.
On-site valve repair is historically first used on steam ships. This method is suitable for on-site on-line valve maintenance minor repair; the valve should be regularly disassembled and inspected, and repaired if damaged. Its advantages are: labor saving, time saving, resource saving, and saving. Funding for the following reasons:
(1) If leakage occurs, react quickly and repair quickly to reduce leakage loss and downtime;
(2) No time and expense for valve disassembly and transportation, especially for welding valves;
(3) Maintenance on-site minor repairs improve the safety and reliability of the production operation and the service life of the valve, to reduce the storage of new valve spare parts in the warehouse and do not depend on the delivery period of the new valve;
(4) The equipment used for on-site valve maintenance is a portable machine, which is easy to operate, and most people only need one person.
These advantages play a huge role. For example, in nuclear power plants, the time to enter the reactor is specified and the requirements are fast. In addition, from an economic perspective, saving time for shutdown inspection and emergency shutdown is to save money and create wealth.
In short, the most effective way to solve the valve leakage and improve the safety and reliability of the operation of the complete equipment is to perform regular maintenance inspections on all the valves in the equipment. At this time, most of the main work is only the grinding and repair of the metal sealing surface. High-speed, high-quality repair of valve sealing surface must have advanced maintenance, inspection technology and valve repair equipment. CXFM series valve repair equipment is the expert in this field. Using CXFM series valve repair equipment and technology can not only greatly improve the safety and reliability of the valve system you use, but also save you a lot of money and time. Without any other capital expenditure, it has contributed to the protection of our common natural environment.
High Chair for Kids,Baby High Chair 3 in 1,Feeding High Chair,7 month old high chair
NINGBO BABY FIRST BABY PRODUCTS CO.,LTD. , https://www.maxinfglobal.com