HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Reference for the standards of good technical condition of equipment

2009-03-01View Original

Thread Content

I. Technical condition of the equipment The technical condition of equipment refers to its working capacity, including the status and changes in aspects such as performance, precision, efficiency, motion parameters, safety, environmental protection, and energy consumption. A company’s equipment is installed to meet the technological requirements of certain products being manufactured or to fulfill the intended functions of a particular project. Its technical condition has a direct impact on economic indicators such as the quality, quantity, cost, and delivery time of the company’s products, ensuring that these aspects can be met successfully. During operation, equipment is affected by factors such as the nature of production, the materials being processed, working conditions, and the environment; as a result, the functions and technical performance originally specified during its design and manufacture continue to change, leading to a decline or deterioration in those aspects. To delay the degradation process and prevent and reduce failures, in addition to operators strictly following operating procedures and using the equipment correctly and appropriately, it is necessary to conduct regular inspections of the equipment’s condition and strengthen the management of its use and maintenance. II. Standards for Equipment Condition and Principles for Determination Maintaining the good condition of equipment is one of the main tasks in enterprise equipment management. Using the equipment correctly and in accordance with the operating and usage procedures is a fundamental requirement for maintaining its integrity. Therefore, integrity standards for equipment should be established to provide an appropriate measure for assessing whether the technical condition of the equipment is good. The standards for the good condition of equipment are established based on classification. Taking metal cutting equipment as an example, the standards for its good condition include: (1) The accuracy and performance must meet the requirements of the production process ; (2) All transmission systems are operating normally, with a complete range of gear shifts ; (3) Each control system operates sensitively and reliably ; (4) The lubrication system is fully equipped, with intact pipes, unobstructed oil circuits, and clearly visible oil gauges ; (5) The electrical system is fully equipped, with complete pipelines, sensitive performance, and reliable operation ; (6) The sliding parts are operating normally, with no severe pulling, grinding, or damage ; (7) Cleaning inside and outside the machine tool ; (8) Practically no oil leakage, water leakage, or air leakage ; (9) Complete parts ; (10) The safety protection devices are complete. Among the above standards, items (1) to (6) are the main criteria; if any one of them is not met, the equipment is considered defective. There are also corresponding integrity standards for non-metal cutting equipment (such as forging equipment, lifting equipment, industrial furnaces, power pipelines, industrial pumps, etc.). Regardless of the standards for the integrity of different types of equipment, the following principles should be followed when formulating such standards: (1) The equipment should have good performance; mechanical equipment must be able to meet the requirements of the production process steadily, while power equipment should function in accordance with the original design or specified standards, without any issues such as overheating or overpressure ; (2) The equipment is operating properly, with all components present; the safety protection devices are in good condition, and the degree of wear and corrosion does not exceed the specified standards. The control system, measuring instruments, gauges, and lubrication system are all functioning properly ; (3) The consumption of raw materials, fuel, lubricating oil, kinetic energy, etc. is normal; there are no leaks of oil, water, air (vapor), or electricity, and the exterior is clean and tidy. The specific standards for intact equipment should be uniformly established by the competent authorities in each industry. **The various industrial regulatory authorities assess the condition of enterprises’ equipment by evaluating the integrity rate of key equipment (or the leakage rate for enterprises in the process industry). III. Assessment of equipment in good condition and calculation of the good condition rate 1. Assessment of equipment in good condition (1) If any of the key items in the standards for good condition are not met, then such equipment is considered to be in poor condition. (2) If there are two failures in the secondary items of the integrity standards, the equipment is considered non-intact. (3) Projects that can be rectified to meet the standards before the inspectors leave the site are still considered qualified, but they must be recorded as issues. 2. Equipment inspection and good rate calculation (1) Internal factory inspections should be conducted on each unit to determine the number of units in good condition ; (2) The Equipment Power Department randomly inspects 10 to 15 percent of the equipment to determine the pass rate for well-maintained equipment ; (3) Calculation of the good condition rate: ① Equipment good condition rate; ② Pass rate of randomly inspected good-condition equipment; ③ Conversion of the rate based on random inspections. Good condition rate after inspection = Equipment good condition rate × Pass rate of random inspections. IV. Good condition standards for individual equipment: 1. Good condition standards for forging equipment. Forging equipment (items 1–6 are the main items): (1) Its capacity must meet the requirements of the production process ; (2) Items 2 to 10 shall be implemented in accordance with the standards for metal cutting machine tools. 2. Standards for the good condition of lifting equipment. Lifting equipment items (items 1–7 are the main ones): (1) The lifting and towing capacity must meet the design requirements ; (2) All transmission systems are operating properly, and the steel wires and hooks comply with safety technical regulations... (3) The braking system is safe and reliable, with no severe wear on the main components ; (4) The operating system is sensitive and reliable, with normal speed regulation ; (5) Deformations such as sagging, cambering, and lateral bending of the main and secondary girders shall not exceed the relevant technical specifications ; (6) Electrical installations are complete and functional, with safety devices that are sensitive and reliable ; (7) The wheels show no severe track wear and maintain good contact with the tracks ; (8) The lubrication system is complete and effective, with virtually no oil leakage ; (9) The crane is clean inside and out, with visible signs and all components in place. 3. Standards for the good condition of casting equipment. Casting equipment items (items 1-3 are the main ones): (1) It operates properly, and its capacity meets the requirements of the manufacturing process ; (2) The equipment is operating normally, and the control system is complete and reliable ; (3) Electrical, safety, protection, and dust-proof devices are complete and functional…… ; (4) The equipment is clean and tidy both inside and outside, with no severe wear on the components and all sliding surfaces ; (5) Practically no leakage of water, oil, air, or sand ; (6) The lubrication system is complete and functions well. 4. Standards for the good condition of industrial boiler equipment: (1) The output basically meets the original design requirements as well as the standards approved by the relevant authorities... (2) There is no severe corrosion in components such as the boiler shell, furnace cylinder, firebox, and boiler tubes... (3) The electrical and safety devices are complete and in good condition; the pipelines are unobstructed, and the water level gauges, pressure gauges, and safety valves are sensitive and reliable ; (4) The main auxiliary equipment, attachments, and measuring instruments are complete and in good condition, with accurate readings ; (5) All control valve devices are complete, and their operation is sensitive and reliable ; (6) The transmission and water supply systems operate smoothly and reliably ; (7) The main and auxiliary machines are clean in appearance and well-lubricated ; (8) There is virtually no leakage of water, oil, or air. 5. Standards for the integrity of kinetic energy equipment Items (1) to (5) under kinetic energy equipment represent the key aspects: (1) The output basically meets the original design requirements ; (2) All transmission systems are operating normally, with no severe rust or wear on the sliding surfaces ; (3) The electrical and control systems, safety valves, pressure gauges, water level gauges and other devices are complete, sensitive and reliable ; (4) There is no over-temperature or over-pressure phenomenon, and virtually no leakage of water, oil, or air ; (5) The lubrication system is complete, the pipelines are intact, the oil flow is unobstructed, the oil level indicator is clearly visible, and the quality of the oil meets the requirements ; (6) The auxiliary equipment and parts are complete, and the interior and exterior are clean. 6. Standards for the good condition of electrical equipment The main items are those listed in points (1) to (3) under electrical equipment: (1) All major technical specifications meet the original factory standards, or can satisfy the requirements of the production process ; (2) The operation and control system is fully equipped, sensitive, and reliable ; (3) The equipment should be in good working condition, and its insulation strength as well as safety protection devices must comply with electrical safety regulations ; (4) The equipment is equipped with complete communication, heat dissipation, and cooling systems, all of which operate efficiently ; (5) The equipment should be clean inside and out, with proper lubrication ; (6) There is no oil leakage, electric leakage, or water leakage. 7. Standards for the good condition of industrial furnace equipment. Items (1) to (4) related to industrial furnaces are the main criteria: (1) The capacity basically meets the original design requirements and satisfies the needs of the production process ; (2) The operation, combustion, and control systems are fully equipped and sensitive and reliable ; (3) Electrical and safety devices are complete and in good working condition ; (4) Components such as the box body, furnace shell, and brick structure show no severe ablation or cracks ; (5) The transmission system is operating normally with good lubrication ; (6) The equipment should be clean inside and outside, with no oil, water, or air leaks.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.