Ways to Reduce Carbon Emissions in the PCB Industry
In 2020, China clearly stated at the United Nations General Assembly that carbon dioxide emissions should peak by 2030, and strive to achieve carbon neutrality by 2060.
For the first time, carbon neutrality in 2021 was written into the work report of the Chinese government.
In 2022, Chinese Premier Li Keqiang proposed in the report to promote the energy revolution, ensure energy supply, and promote the low-carbon transformation of energy.
Analysis direction
Energy usage analysis→Carbon inventory analysis→Carbon emission ratio analysis→Carbon emission reduction direction analysis
Energy Usage Analysis
PCB production is a high energy consumption industry, and it is very necessary to carry out carbon emission reduction work.
The energy used in the production process of the PCB industry is mainly electricity, steam, natural gas and tap water. Electricity is mainly used in the operation of equipment and facilities, and is mainly consumed in production equipment such as exposure machines, presses, horizontal lines, and electroplating lines, as well as production auxiliary equipment such as air compressors and refrigerators;
Steam is mainly used for heating and staff life; natural gas is mainly used for boiler heating. Tap water is mainly used for workshop production line cleaning, cooling water supplement, pure water preparation, etc.
Carbon Inventory Analysis
PCB factories need to carry out a carbon emission action path. First, they must know what their emissions are and how to effectively formulate targeted measures according to their emissions.
Carbon Inventory
Determine organizational boundaries and identify and inventory sources of greenhouse gas emissions. Seven types of greenhouse gases emitted by PCB factory greenhouse gas inventory:
Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), nitrogen trifluoride (NF3), hydrofluorocarbons (HFCS), perfluorocarbons (PFCS), sulfur hexafluoride (SF6); calculation Emissions form the greenhouse gas inventory report.
Carbon Goals and Path Planning
According to the investigation results, we formulate goals and path plans, conduct internal assessments, plan energy conservation and emission reduction measures for carbon reduction actions, and provide specific suggestions for carbon emission reduction actions.
Greenhouse Gas Management System
Establish a greenhouse gas emission data statistics and management system; build a top-down carbon management structure, form a normalized carbon management communication mechanism, and evaluate and disclose the achievement of goals.
Planning Energy Saving and Carbon Reduction Measures
Enterprises take energy saving and carbon reduction measures to achieve carbon reduction goals. The main methods of carbon reduction and energy saving are:
Improve the production process, improve the overall efficiency of equipment, and take measures such as energy saving and power saving management.
Analysis of Carbon Emissions Percentage
Conduct carbon inspections based on PCB factories, and determine the boundaries based on the direct or indirect greenhouse gas emissions generated by the company in the production process.
Analysis of the proportion of energy carbon emissions:
Electric energy accounts for about 70%, and electricity is mainly used for energy: production equipment, power facilities, etc.
Natural gas, steam, industrial water and other energy use account for about 5%, and carbon emissions from the production process account for about 5%.
To practice the strategic goal of carbon peaking and carbon neutrality, energy is the main battlefield and electricity is the main force.
Carbon Emission Direction
The focus of energy conservation and emission reduction in the PCB industry should be production equipment and auxiliary production systems. For double carbon emission reduction in PCB factories, we need to analyze technical energy conservation and management energy conservation:
Technological Approaches to Reduce Carbon Emissions
Eliminate and replace high-energy-consuming equipment and facilities, adopt new energy-saving equipment, and use technical means to promote energy conservation and emission reduction of enterprises
In terms of technology, production equipment and facilities play a decisive role in energy conservation and emission reduction in the PCB industry. As the society’s requirements for energy conservation and emission reduction in the industry continue to increase, only through technological updates, high-energy-consuming equipment and facilities can be eliminated.
Use a new type of high-efficiency magnetic levitation centrifugal chiller to replace the traditional centrifugal chiller, and use magnetic levitation technology to reduce mechanical losses;
Refrigeration operation is more efficient and energy-saving. Fewer moving parts, no complicated oil circuit system, oil cooling system, etc. The daily maintenance cost is low, the running noise and vibration are low, and the energy saving effect is 20%~30%.
The high-energy-efficiency air compressor replaces the low-energy-efficiency air compressor, and adopts frequency conversion control for speed regulation; the optimal screw linear speed and compression efficiency are used to increase the gas production, and the energy saving effect reaches 18%~30%.
Continuously implement various energy-saving and consumption-reducing management measures through the technical transformation of equipment and facilities to continuously reduce carbon emissions
Promote the energy-saving renovation and upgrading of key energy-consuming equipment and facilities systems, and use new technologies to transform original equipment; to improve or improve the performance, accuracy and productivity of equipment, and reduce energy consumption and carbon emissions.
The waste heat recovery of the air compressor is transformed, and the hot water is used for the production line, and the electric heater of the production line is cancelled.
Renovation and installation of new waste gas dust removal and washing machine projects for solder mask and character ovens. The washing machine adopts new technology, high exhaust gas purification rate, and oven exhaust gas cooling and fire prevention to reduce safety hazards.
It is mainly composed of air inlet duct pre-cooling, self-excited vortex water curtain cleaning device, water and gas separation device, overflow discharge device, etc.
High temperature or dusty exhaust gas can be fully mixed with gas and liquid (water) in the self-excited vortex cleaning device, and can impact and clean each other, and the dust material is captured by the liquid (water) or absorbed into the liquid (water); , the purified gas is discharged through the water-gas separation device.
It is used in the cooling and cleaning treatment of high-temperature exhaust gas such as ovens and ovens in the PCB industry, which can achieve cooling and fire resistance, remove hair and wool, improve pipeline ventilation efficiency, and improve the use effect and maintenance of activated carbon in terminal equipment.
Process flow of waste gas treatment after transformation:
Oven → waste gas dedusting and washing machine → waste gas tower spray cleaning → waste gas tower activated carbon adsorption → waste gas discharge. On the basis of activated carbon adsorption method, the comprehensive removal efficiency of VOCs is greatly improved.
Optimize the production process and process parameters of equipment and facilities (heating, chilled water temperature, washing flow, etc.) to reduce equipment energy consumption
Adopt new technologies, new processes and new materials to optimize and upgrade existing equipment and facilities, process conditions and production services, and eliminate outdated production capacity.
Realize technological progress, improve production efficiency, and promote energy conservation and emission reduction. In the case of unsatisfactory production in production, schedule high-energy-consuming equipment to shut down.
On the premise of ensuring quality, strengthen process management and rationally arrange equipment flow. Optimizing and adjusting parameters of equipment and facilities chiller; optimizing and adjusting parameters of air compressor, etc.;
Strengthen lean production management, increase equipment utilization rate, and increase output to achieve the effect of energy saving
Further promote lean management to go deep into every production process, every piece of equipment, every position, every employee; build a comprehensive lean production management system to achieve double improvement in quality and efficiency.
Improve the data management system, give full play to the advantages of its high degree of equipment automation, and use the SCADA system to measure the statistics of equipment efficiency and utilization rate.
It is planned to make reasonable production arrangements according to the order, product structure and delivery date, and optimize the production process to improve production capacity, such as the combination of VCP and MCP to make the board mode, reduce model transformation time, reduce equipment standby and increase production capacity.
Carry out TPM activities and improve the equipment maintenance system; carry out independent maintenance and professional maintenance of equipment to reduce the equipment failure rate and improve the equipment marriage rate.
Improve process capability, streamline processes and other modes to save energy
The technological process is the technical route to realize product production. Through the research and optimization of the technological process, the production process capacity is improved, and the potential of the equipment is tapped as much as possible to achieve the production goals of high output, low energy consumption and high efficiency.
Such as optimization and improvement of drilling parameters to improve drilling efficiency, improve the stability of electroplating lines and reduce copper plating time. The production process of the product is streamlined. According to the product structure and specific design, the production process can be optimized in order to optimize the efficiency, cost and energy saving.
Building digital energy management
Strengthen the development and deployment of information technology in the fields of energy consumption and carbon emissions, establish a Grade A energy management center, and improve the level of digital management, networked collaboration, and intelligent management and control of carbon emissions.
Promote enterprises to build a carbon emission data measurement, monitoring and analysis system, and identify items that can be improved in the use of equipment, workshop lighting, and air conditioners through the system; take measures such as formulating management systems and training to teach all employees to use equipment correctly, consciously turn off idle power, etc. Achieve energy saving.
Introduce clean energy and reduce carbon emissions
Clean energy development and utilization, and vigorously improve new energy consumption capacity. Accelerate the promotion of “carbon peaking and carbon neutrality” to achieve green economic and social development. Renewable and clean energy represented by photovoltaics, wind energy, and geothermal energy, or purchase green electricity, factory energy storage, etc. in the electricity market.
Management Approaches to Reduce Carbon Emissions
(1) Actively promote quality and efficiency improvement activities: improve the operational efficiency of employees, improve yield, and increase the output of unit energy consumption of equipment.
(2) Strengthen energy-saving publicity in the process: Improve employees’ energy-saving awareness through extensive and various forms of publicity and education activities.
(3) Energy saving of office equipment: turn off lights, water heaters, air conditioners, and computers when people walk away; turn off lighting, air conditioners, projectors and other electrical facilities in a timely manner after meeting rooms are used.
(4) Save water: cherish water resources, shorten the time of water use, stop the water when people walk, advocate the use of water for multiple purposes, and prevent the phenomenon of “running, dripping and leaking” and “long running water”.
(5) Air-conditioning energy saving: Set the air-conditioning temperature reasonably, and the temperature must be set at 26°C or above; the power consumption increases by 10% for every 1°C decrease in temperature; the dormitory air-conditioning is adjusted to sleep mode at night.
What can we do?
Technology update plays a key role in the company’s dual carbon strategy. Only by accelerating energy saving and emission reduction technology update and improving the company’s efficient utilization of energy;
To reduce the unit energy consumption of products, the company actively fulfills its corporate social responsibility, promotes the sustainable development model, and continues to lead the sustainable development of the industry.
About Wonderful
Shenzhen Wonderful Technology Co., Ltd. is China’s top model and small batch circuit board manufacturer.
The company targets precision circuit board samples and small batches as the main target market. Since its establishment, it has adhered to the development concept of good quality and important reputation.
Invest huge sums of money to introduce advanced equipment, strictly regulate the operating standards and QC standards for incoming and outgoing materials, to ensure that the shipped products reach Seiko quality.
The self-developed ERP management system can realize the whole process of paperless operations such as online ordering, online payment, online production progress query, online logistics tracking, and online statistical report production, which greatly improves work efficiency.
It ensures that each order can be shipped quickly. After more than ten years of development, the company’s products and services have been well received by the market.
As well as the opening of an electronic component mall, integrated circuits, semiconductors, resistors, capacitors and other products are sold.
The company’s scale is developing rapidly, and the sample and small batch shipment capacity reaches 500 models/day.
The products are widely used in communications, medical equipment, industrial control products, aviation, military products, testing instruments,Automotive, computers and other peripheral products.
We will continue to pay attention to customers, with efficient delivery speed and perfect after-sales service, to become the most trusted brand supplier in the PCB industry.
Wonderful PCB You can send us your requirements first. Click here to contact us.
You can click our component store. Please click here to contact us.
English