Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, B-grade boiler installation and GB2, GC2 pressure pipeline installation licenses, as well as equipment and machinery installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 unit of the Shandong Equipment Manufacturing Association. The company has also passed ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
When a gas steam boiler experiences overpressure, the following immediate measures must be taken: 1. Shut off the gas supply: First, immediately close the gas supply to cut off the fuel source and stop the combustion process to prevent further increase in steam pressure. 2. Open the pressure relief device: Activate the boiler's pressure relief device, typically a safety valve. The safety valve is a crucial safety feature of the boiler. When the internal pressure exceeds the set value, the safety valve automatically opens to release the overpressure steam, thereby reducing the boiler pressure. 3. Reduce the burner load: If the overpressure is due to excessive burner load, reducing the burner load can decrease steam production and thus lower the boiler pressure. Adjust the gas supply to the burner or the burner's control method to accommodate the current load requirements. 4. Inspection and maintenance: After an overpressure event, the boiler should be inspected and maintained to identify the cause of overpressure and make necessary repairs. Possible causes may include burner failure, control system issues, valve failure, etc. If needed, call in boiler maintenance personnel for inspection and maintenance. It is important to note that overpressure is a dangerous condition during boiler operation and must be addressed promptly. When dealing with overpressure, operators should remain calm and follow safety procedures to ensure their own safety. If unsure about how to handle overpressure situations, contact boiler maintenance personnel or relevant technical support immediately for assistance.

In the burner of a thermal oil furnace, adjusting the air shutter during low flame conditions is crucial. Here are some common knowledge and precautions: The role of the air shutter: The air shutter is a key component in the burner that controls the supply of combustion air. By adjusting the opening of the air shutter, the flow of combustion air can be controlled, thereby affecting the oxygen supply and combustion effect during the combustion process. Adjustment during low flame conditions: In low flame conditions, the burner needs to maintain a stable combustion to ensure combustion efficiency and heat output. In this case, it is necessary to adjust the opening of the air shutter appropriately to maintain an adequate supply of combustion air. Generally, the opening of the air shutter is relatively small during low flame conditions to maintain an appropriate oxygen supply and avoid incomplete combustion or instability. Ratio of combustion air to fuel: In low flame conditions, it is necessary to ensure the appropriate ratio of combustion air to fuel. Excessive combustion air can lead to incomplete combustion and energy waste, while insufficient combustion air can cause instability and the production of harmful gases. By adjusting the opening of the air shutter, the ratio of combustion air to fuel can be controlled to achieve a stable combustion effect. Burner tuning and optimization: During the installation and tuning of the burner in the thermal oil furnace, appropriate tuning and optimization are required. Through actual operation and monitoring, adjust the opening of the air shutter and other parameters to achieve the best combustion effect and energy efficiency performance. This requires...

When selecting the appropriate gas-fired steam boiler, consider the following factors: - Steam Demand: First, determine your steam requirements, including steam pressure and evaporation rate. Choose a boiler with a rated evaporation capacity and steam pressure that align with your production or heating needs. - Fuel Type: Gas-fired steam boilers use gas as fuel, with common types including natural gas, LPG, etc. Select the appropriate fuel type based on available gas resources and costs. - Boiler Efficiency: The efficiency of the boiler directly impacts energy utilization and operating costs. Opt for a high-efficiency gas-fired steam boiler to reduce energy consumption and operating costs. Focus on the boiler's thermal and combustion efficiency. - Boiler and Manufacturer Quality: Choose a gas-fired steam boiler from a reputable manufacturer to ensure product quality and reliability. Understand the manufacturer's production capacity, after-sales service, and technical support, and select a reliable supplier. - Safety and Environmental Protection: Pay attention to the safety and environmental performance of the boiler. Ensure the boiler has necessary safety protection devices and monitoring systems, as well as a combustion system that meets environmental standards to minimize environmental impact. - Cost-effectiveness: In addition to purchase costs, consider operating and maintenance costs. Consider the boiler's energy consumption and overall cost-effectiveness.

Yes, thermal oil boilers typically feature some self-protection functions to ensure safe operation and extend their lifespan. Here are some common self-protection features: Overheat Protection: Thermal oil boilers are equipped with overheat protection devices that automatically shut off the burner's gas supply when the thermal oil temperature exceeds the set safe range, preventing overheating and avoiding equipment damage and safety accidents. Overpressure Protection: Thermal oil boilers also come with overpressure protection devices that automatically cut off the burner's gas supply when the thermal oil pressure exceeds the set safe range, preventing explosions or leaks in the thermal oil system. Burner Automatic Control: The burners of thermal oil boilers usually have automatic control systems that can adjust gas supply and combustion effects automatically according to set operating parameters, maintaining a stable combustion state and avoiding incomplete or excessive combustion. Temperature Control and Adjustment: Thermal oil boilers typically have temperature control and adjustment devices that automatically regulate the circulation and heating of thermal oil according to the set operating temperature, maintaining a stable working temperature and avoiding excessive or insufficient temperatures. Water Level Protection: Some thermal oil boilers, especially water-tube boilers, are also equipped with water level protection devices that monitor the water levels of thermal oil and water. When levels are abnormal, the protection device automatically cuts off the burner's gas supply to prevent dry burning and oil leakage. It is important to note that while thermal oil boilers have self-protection functions, they still require regular inspections and maintenance to ensure the proper functioning and reliability of these protection devices. Moreover, operators need to understand and master the working principles and operation methods of these self-protection features to ensure safe operation.
Our company attaches great importance to technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We have over 600 types of equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products and technologies we have developed, such as temperature-pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have accumulated a total of 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After being appraised as a provincial-level scientific and technological achievement, the technology level has reached an international standard in the field of deep cryogenic container manufacturing.
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