Shandong Zhongjie Special Equipment specializes in products such as fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels like LNG, oxygen-nitrogenargon, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and ventilation equipment like ground (water) source heat pumps, air-source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale thermal energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Excessive exhaust gas temperature in thermal oil boilers may be caused by several factors: Incomplete combustion: If the fuel in the thermal oil boiler burns incompletely during the combustion process, it leads to a large amount of unburned fuel and harmful substances in the flue gas, resulting in higher exhaust gas temperature. Possible causes include insufficient fuel supply, improper adjustment of the burner, and burner wear. Excessive air: An excess of air can lower the combustion temperature, making the heat in the flue gas insufficient to reduce the gas temperature to a reasonable level. Reasons for excessive air may include improper burner adjustment and excessively wide wind gates. Choked flue: Accumulation of ash, coking, or other impurities in the flue can impede flue gas flow, increasing the residence time of the gas and leading to higher exhaust gas temperature. Abnormal thermal oil flow: Abnormal thermal oil flow, either too high or too low, can cause uneven heat transfer, leading to an increase in flue gas temperature. Boiler overheating: If the temperature control of the thermal oil boiler is not properly managed, resulting in overheating, it can raise the flue gas temperature. Boiler design issues: Design problems such as too small flues or poor flue gas flow can also cause excessive exhaust gas temperature. To address the issue of high exhaust gas temperature, a comprehensive inspection and analysis of the thermal oil boiler is required. Solutions can include adjusting burner parameters, cleaning flues, checking thermal oil flow and temperature control. For severe issues, boiler system modifications or repairs may be necessary. Moreover, regular maintenance and inspections are crucial preventive measures against excessive exhaust gas temperature.

Possible causes of uneven heat distribution in steam boilers may include the following aspects: - Uneven combustion: During the combustion process, if the mixture of fuel and air is uneven, or if the burner's design and adjustment are not reasonable, it can lead to uneven combustion. This results in some areas producing more heat while others produce less. - Pipe blockage: In the conveying pipes of a steam boiler, the presence of blockages or scale can cause uneven heat transfer. Blockages or scale hinder steam flow, limiting heat transfer in some areas while allowing it to be relatively better in others. - Heat exchanger issues: If there are problems such as scaling, corrosion, or blockage in the heat exchangers of a steam boiler, it can lead to uneven heat transfer. These issues can affect the heat conduction efficiency of the heat exchangers, impacting heat transfer in some areas. - Water level problems: Inaccurate or unstable water level control in a steam boiler can result in uneven steam production. Both high and low water levels can affect steam generation and distribution, leading to uneven heat. - Boiler load changes: Changes in the load of a steam boiler can also cause uneven heat distribution. Sudden increases or decreases in load may not allow for timely adjustments in heat production and distribution, resulting in uneven heat. To address the issue of uneven heat distribution in steam boilers, regular inspection and maintenance of boiler equipment are necessary to ensure the normal operation of combustion and heat exchange processes. Additionally, it's important to adjust burners and control systems reasonably, maintain stable water levels, clean pipes and heat exchangers, and improve...

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 function 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 under low flame conditions: In low flame conditions, the burner needs to maintain 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 a suitable 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 that the ratio of combustion air to fuel is appropriate. Excessive combustion air can lead to incomplete combustion and energy waste, while insufficient combustion air can cause instability in combustion 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 of a 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...

The necessity of flow control in thermal oil heaters is mainly reflected in the following aspects: 1. Heat Transfer Efficiency: The heat transfer efficiency of thermal oil heaters is closely related to the flow rate of the thermal oil. An appropriate flow rate ensures that heat is fully transferred within the heat exchanger, enhancing the utilization efficiency of heat energy. Insufficient flow may lead to inadequate heat exchange and affect the heat transfer effect, while excessive flow will increase energy consumption and operating costs. 2. Temperature Control: The flow control of thermal oil heaters is also closely related to temperature control. By adjusting the flow rate of thermal oil, the internal temperature of the heater can be controlled to ensure stable operation within the set working temperature range. Insufficient flow may cause temperatures to rise too high, and excessive flow may cause temperatures to fall too low, both of which can affect the normal operation of the equipment. 3. System Stability: Appropriate thermal oil flow rates can enhance system stability. Through flow control, the supply and demand of heat energy can be balanced, avoiding overheating or cooling, and maintaining stable system operation. Stable operation helps to prolong the service life of the equipment and reduce the frequency of failures and repairs. 4. Safety: The flow control of thermal oil heaters is also closely related to safety. Proper flow control can prevent excessive accumulation of thermal oil in the system, reducing the risk of leaks and explosions. Additionally, flow control can ensure that the system pressure remains within a safe range, avoiding overpressure and other safety issues. In summary, flow control for thermal oil heaters is necessary for improving heat transfer efficiency, temperature control, system stability, and safety. Through reasonable flow control, the operation of thermal oil heaters can be optimized, enhancing energy utilization efficiency, reducing operating costs, and ensuring safe and stable equipment operation.
Our company attaches great importance to technological innovation and R&D, boasting one municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. Equipped with over 600 units of various instruments and 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, our R&D efforts in key products such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization have been selected for multiple Shandong Provincial Department of Industry and Information Technology innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have accumulated 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + filler wire tungsten inert gas (PAW-GTAW) welding technique, which has been appraised as reaching international standards in the field of deep cryogenic vessel manufacturing at the provincial level.
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