A Comprehensive Guide to Daily Maintenance of Pressure-Resistant Opening Equipment

Full Guide to Daily Maintenance of Pressure-Resistant Opening Equipment: The Key to Safe and Efficient Operation In pipeline maintenance and emergency repair technologies, pressure-bearing hole opening operations have become an indispensable technical means in many industries due to their safety, environmental friendliness, economy, and efficiency. However, the safety of this technology is highly dependent on the daily maintenance of the equipment. The pressure-bearing opening technology is a method for creating interfaces on pipelines and containers without interrupting their operation. It is applicable to any medium except oxygen and various types of pipes of different diameters. This technology has overcome the problems of pipeline online maintenance such as shutdown, pressure reduction, venting, and the use of open flames, which are traditional operation methods. It has avoided operational risks and enhanced safety. Daily maintenance is the key to ensuring that the equipment with pressure openings is always in good condition. 01 Overview and Application Areas of Pressure-Resistant Opening Technology The pressure-bearing hole-making technology has been researched and applied in China since the early 1980s and has now become a mature technical solution. Its basic principle is to carry out cutting operations within a completely sealed cavity. The cutting process of the tool is isolated from the air, eliminating the possibility of fire or explosion, and there is no pollution to the environment. This technology is widely applied in the normal maintenance and renovation of pipelines for various media such as crude oil, refined oil, chemical media, and natural gas. Specific application scenarios include: · Add branch pipes for the purpose of inputting or outputting materials · Set up temperature monitoring points Provide connection points for the equipment (blocking equipment) · Operations such as replacing corroded sections, installing additional equipment, and pipeline diversion renovations 02 The Importance of Daily Maintenance Pressure-bearing hole-opening equipment is often exposed to various media, such as high-temperature and corrosive liquids, etc. The working environment is complex and demanding. Appropriate daily maintenance not only can extend the service life of the equipment but also can ensure operational safety and prevent accidents. Regular maintenance can promptly identify and address potential problems with the equipment, preventing work disruptions or safety incidents caused by equipment failures. Moreover, well-maintained equipment can enhance work efficiency and reduce long-term operating costs. 03 Specific Contents of Daily Maintenance Based on the frequency of equipment usage and the working environment, the routine maintenance of pressure-bearing opening operations should include the following contents: Cleaning and Maintenance: After each pressurized hole opening, the external dirt should be cleaned to prevent corrosive substances from remaining and damaging the equipment. Keeping the equipment clean is a basic yet crucial maintenance step. 2. Shaft protection: When the pressure-bearing hole-making machine is not in use, protective measures should be taken for the extended part of the shaft and it should be stored in a dedicated box. This simple measure can prevent the shaft from deforming or getting damaged. 3. Regular Inspection: After each hole is drilled, check if the guide of the blocking rod is damaged. Regular inspections can help detect potential problems in time and prevent minor issues from escalating into major failures. 4. Replacement of sealing elements: After each high-temperature operation or operation involving corrosive liquids, the sealing elements should be replaced. The integrity of the sealing elements is of vital importance for ensuring the safety of the operation. 5. Lubrication and Maintenance: Every six months or after 30 operations, the machine should be disassembled once and each part should be lubricated. Regular lubrication is the key to ensuring smooth operation of the equipment. 6. Use of Special Tools: When installing the machine onto the gate valve, a flat-head wrench should be used to prevent damage to the equipment connection points. Using the appropriate tools can avoid unnecessary damage. 7. Protection of Key Areas: Prevent damage to the hexagonal drive rod at the top of the machine. If this area is damaged, it will affect the normal operation of the entire equipment. 8. Ratchet Maintenance: Regularly lubricate the ratchet handle to ensure the manual operation components are flexible and reliable. 04 Seasonal Maintenance and Long-Term Storage Maintenance For equipment with pressure openings that are used seasonally or need to be stored for a long time, additional maintenance measures need to be taken: Before long-term storage, the main shaft should be fully extended, wiped clean, coated with high-quality anti-rust lubricating grease, and then covered with a protective cover. · If the machine is not turned on for a long period of time, it is necessary to extend the spindle every three months, rotate it a few times, then retract the spindle and cover it with the protective cover. This operation can prevent components from sticking together and getting rusty. · Inspect the gearbox and add lubricating oil if necessary; when inspecting the gearbox, the opening machine should be placed horizontally. If the hole-making machine is used frequently, the lubricating oil should be replaced every 3 to 6 months. When removing the cover plate, check whether the internal parts are worn or damaged. 05 Maintenance Records and Archive Management