For breeding enterprises, electricity is the "lifeline" — every link, including constant temperature control in hatcheries, ventilation in livestock and poultry houses, normal operation of feed processing, and low-temperature maintenance of cold chain storage, is inseparable from continuous and stable power support. Once the municipal power supply is interrupted, whether the standby diesel generator set can "take over" in time directly determines the safety of breeding achievements.
Recently, there have been such painful cases: a aquatic breeding company in Fangchenggang, Guangxi, suffered a sudden power outage late at night, the fish pond aeration equipment stopped working, and more than 100,000 jin of fish and shrimp died due to lack of oxygen, resulting in a direct economic loss of more than 2 million yuan; another breeder in Hengzhou, Guangxi, failed to start the generator in time after the power outage, leading to the death of more than 30,000 jin of fish due to lack of oxygen, and finally bore 20% of the loss. These cases warn us that standard use of diesel generator sets and full-process management are the key for breeding enterprises to avoid risks and protect their income. Today, combined with the characteristics of the breeding industry, we will popularize the core precautions for diesel generator sets from selection, installation to operation, to build a solid line of defense for breeding power safety.
I. Model Selection and Adaptation: Choose the Right Unit to Avoid "Overkill" or "Insufficient Capacity"
The selection of diesel generator sets is the foundation of power supply guarantee. Choosing the right model can not only reduce operation and maintenance costs, but also avoid "breaking down" during power outages. Breeding enterprises need to scientifically select models according to their own scale, power demand and scene characteristics, and refuse to follow the trend blindly.
Accurately match the power load and reserve emergency redundancy: First, calculate the total power of all electrical equipment, including incubators, ventilation fans, water curtains, feed crushers, constant temperature equipment, etc. On this basis, reserve 20%-30% redundancy to avoid accelerated wear and frequent failures caused by long-term full-load operation of the unit. For example, small and medium-sized hatcheries can choose 20KW-100KW units, while large-scale breeding farms (including multiple livestock and poultry houses and feed processing workshops) need to choose units above 100KW according to the actual load.
- At the same time, prioritize intelligent units, which have built-in induction modules that can realize second-level automatic start after the municipal power supply is interrupted, seamlessly switch power supply, completely solve the problem of lag in manual start, and avoid fatal impacts of power outages on hatched embryos and livestock and poultry growth.
- Adapt to the special breeding environment and improve durability: Breeding sites are mostly characterized by high temperature, high humidity, high dust and high ammonia concentration, so the unit needs to have strong environmental adaptability. Prioritize models with protection level ≥ IP54, which can effectively prevent dust, water and corrosion, and avoid ammonia and water vapor eroding internal components; breeding enterprises in northern China need to choose units with low-temperature start-up function, equipped with electric preheating system and starting motor, to ensure quick start-up in extremely cold environment of -30℃; if the site is limited, silent units can be selected, equipped with silencing devices, to control the noise at 1m outside the machine room within 60dB, avoid noise stress affecting the growth of livestock and poultry, and meet environmental protection requirements.
- Prioritize compliant products, considering both environmental protection and after-sales service: Choose low-emission and low-fuel-consumption models that meet national environmental protection standards, equipped with exhaust gas treatment devices, to avoid penalties for non-compliance with environmental protection; at the same time, choose brands with perfect after-sales systems to ensure that 7×24-hour rapid response can be obtained when the unit breaks down, and key spare parts (such as filters and turbochargers) can be delivered in time, so as to avoid extending the power outage time and expanding economic losses due to failure to repair the fault in time.
II. Installation Specifications: Scientific Layout to Build a Solid Safety Foundation
The installation quality of diesel generator sets directly affects the operation stability and safety. Improper installation is likely to cause risks such as fire, electric shock and exhaust gas poisoning. Breeding enterprises need to strictly follow the specifications and reasonably layout according to the site conditions.
- Machine Room Location and Layout, Considering Both Safety and Ventilation: The machine room should be far away from core areas such as livestock and poultry houses, feed warehouses and hatcheries, with a distance of at least 15 meters, to avoid noise and exhaust gas affecting the growth of livestock and poultry, and reduce the risk of fire spread; the machine room should be selected in a high-lying, dry and ventilated area to avoid component rust caused by water accumulation and humidity, with daily temperature controlled at 5℃-40℃ and relative humidity ≤ 85%. The ventilation system should adopt explosion-proof exhaust fans with an air change rate of not less than 6 times per hour. The air inlet and outlet should be equipped with rainproof, insect-proof and debris-proof filters, which are cleaned once a month to ensure effective heat dissipation of the unit and avoid overheating shutdown; the width of the main channel of the machine room is ≥ 1.2m, and the fire-fighting channel is strictly prohibited from piling up debris to facilitate daily operation and emergency disposal.
- Foundation Fixing and Grounding, Preventing Vibration and Electric Shock: The unit should be installed on a special concrete foundation, with shock-absorbing pads laid at the bottom to reduce operation vibration, avoid damage to components and transmit vibration to surrounding buildings; the floor of the machine room is made of non-slip and oil-leakage-proof epoxy resin material, with an oil guide slope of ≥ 5‰, and the drainage ditch is connected to a special oil separation tank, which is cleaned once a quarter to prevent hidden dangers caused by fuel leakage. In addition, three types of grounding treatment must be done: working grounding, lightning protection grounding and anti-static grounding. Among them, the working grounding resistance is ≤ 4Ω, the lightning protection grounding resistance is ≤ 10Ω, and the anti-static grounding resistance is ≤ 100Ω. The grounding resistance is tested once a quarter, and the grounding terminal is rust-proofed once a year, which can effectively prevent lightning strike risks in thunderstorm weather.
- Oil Circuit and Circuit Installation, Standard and Orderly to Prevent Leakage: The oil circuit should use special oil pipes that are corrosion-resistant and pressure-resistant, with firm connections to prevent leakage. The storage capacity of the daily fuel tank in the machine room should not exceed the 8-hour rated fuel consumption of the unit. If the total storage capacity is ≥ 1m³, an independent oil storage room should be set up. The oil storage room is separated from the machine room by a fire wall with a fire resistance limit of ≥ 3h, and the door is a Class A fire door opening outward. Lighting, switches and ventilation facilities are all explosion-proof. Circuit installation should be operated by professional electricians, strictly distinguish between municipal power supply and unit power supply circuits, install dual power supply switching devices, and strictly prevent backfeeding (which may damage the power grid and cause electric shock); the lines are laid neatly to avoid aging and damage, the unit output circuit breaker is equipped with overload and short-circuit protection devices, and clear signs are hung for easy operation and maintenance.
- Configuration of Fire-Fighting Facilities, Preventing Fire Risks: The machine room is equipped with 2 4kg portable ammonium phosphate dry powder fire extinguishers per 50㎡. If the total volume is ≥ 50m³, a pipeline-type heptafluoropropane gas fire extinguishing system should be set up. The pressure of the gas fire extinguishing system is checked monthly, and the function is verified by a qualified institution every year; the smoke detector and temperature detector are calibrated once a quarter, and the full-system linkage test is carried out once every six months. Emergency contact information (operation and maintenance on-duty phone, 119, 120, etc.) is posted at the door of the machine room, and an emergency toolbox (including insulating gloves, explosion-proof flashlights, first-aid kits, oil-absorbing felt, etc.) is configured to ensure timely disposal of emergencies.
III. Operation Specifications: Rigorous Operation to Eliminate Human Hidden Dangers
Many unit failures and safety accidents are caused by human operation errors. Breeding enterprises need to clarify the operation process, conduct professional training for operators, and only allow them to take up their posts after passing the assessment, so as to avoid losses caused by improper operation.
- Pre-start Inspection, Building the First Line of Safety Defense: Before each start-up, the operator must check item by item to confirm that there is no abnormality before starting: first, check the fuel, engine oil and coolant levels to ensure they are sufficient and free from deterioration and turbidity, and there is no leakage in the oil and water circuits; second, check the circuit system, confirm that the municipal power incoming switch is disconnected, the unit output circuit breaker is open, hang a "No Closing" warning sign, measure the battery voltage (12V ≥ 10.8V, 24V ≥ 21.6V), the terminal blocks are free from loosening and corrosion, and the unit's insulation resistance to ground is ≥ 0.5MΩ; third, check the unit's appearance, the surface is free from dust and oil, the protective cover is intact, the tension of the fan belt meets the requirements (pressing deflection 10-15mm), there is no debris blocking around, and the ventilation and exhaust ports are unobstructed; fourth, check the fire-fighting equipment to ensure it is intact and usable and not expired or damaged.
- Start-up and Operation, Abiding by the Bottom Line of Standard Operation: When starting, first turn on the control power supply, wait for the self-inspection to complete without fault alarm, then turn on the fuel supply valve and coolant circulation valve, switch the control mode, and press the start button. Each start-up time shall not exceed 5s. If it fails 3 times in a row, it shall stop, and try again after checking the fault at an interval of 10min; after starting, run at idle speed for 3-5min, observe that the engine oil pressure is ≥ 0.2MPa, there is no abnormal noise, vibration or leakage, and after the coolant temperature rises above 40℃, slowly increase the speed to the rated speed, then gradually connect the load, and it is strictly prohibited to start with full load directly. During operation, it is necessary to be on duty throughout the process, patrol once every 30 minutes, observe parameters such as speed, voltage and current, and immediately shut down to check if there is any abnormality, and it is strictly prohibited to operate with faults; it is strictly prohibited to approach rotating parts, disassemble safety protection devices without permission, and it is strictly prohibited to operate with overload, ensuring that the voltage fluctuation is less than 1% to meet the power demand of precision equipment.
- Shutdown Operation, Standard Process to Protect Equipment: For normal shutdown, first gradually unload all loads, turn off the load switch, run at idle speed for 3-5min, wait for the oil temperature and water temperature to return to normal, then turn off the control switch and cut off the power supply; in case of emergency (fire, electric leakage, serious fault), the emergency stop button can be pressed, but the fault must be checked in time after the event to avoid damaging the unit due to frequent emergency shutdown. After shutdown, clean the dust and oil on the surface of the unit, check and supplement the oil level, turn off the fuel valve, keep records, and do not open the water tank cover when the temperature is high to prevent scalding; after the municipal power supply is restored, switch to municipal power supply in time, do a good job in the standby maintenance of the unit, and ensure that it can start normally in the next emergency.
Popular Science Summary
Diesel generator sets are the "emergency guarantee personnel" for breeding enterprises to deal with municipal power outages. Their standard use is directly related to the stability of breeding production and the safety of income. From scientific model selection and standard installation to rigorous operation and regular maintenance, every link cannot be sloppy. It is hoped that all breeding practitioners will keep the above precautions in mind, eliminate potential power safety hazards in the bud, protect the fruits of hard work, and make breeding production more assured and stable.
Post time: May-08-2026
