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, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as a qualification for electromechanical equipment installation contracts. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the Council Unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
Steam boiler blowdown devices mainly include the following types: - Blowdown Valve: A blowdown valve is commonly installed on steam boilers to discharge wastewater and impurities from within the boiler. Typically located at the bottom or side of the boiler, opening the valve allows for the expulsion of wastewater, maintaining the cleanliness of the boiler interior. - Blowdown Pump: For large steam boilers or situations requiring long-distance wastewater discharge, a blowdown pump may be used. The pump can extract wastewater from the boiler and transport it through pipes to designated discharge points. - Automatic Blowdown System: Some steam boilers may be equipped with an automatic blowdown system. These systems can automatically discharge wastewater from the boiler based on set time intervals or wastewater concentration, enhancing the efficiency and accuracy of blowdown. - Wastewater Treatment Equipment: In certain cases, steam boilers may require wastewater treatment equipment. These devices process the discharged wastewater, removing impurities and pollutants to meet environmental protection requirements. Note that the selection and use of steam boiler blowdown devices should be determined based on the specific type, scale, and operating environment of the boiler. When using blowdown devices, it is essential to follow relevant operational procedures and safety requirements to ensure a safe and effective blowdown process.

If gas boiler gas leakage is detected, the following measures must be taken immediately to handle the situation: 1. Immediately shut off the gas supply: First, quickly close the gas supply valve to cut off the gas supply. This prevents further leakage and reduces safety risks. 2. Ventilation: Open windows and doors to ensure good indoor air circulation and expel any remaining gas. This helps lower the indoor gas concentration, reducing the risks of explosion and poisoning. 3. Avoid open flames and electrical appliances: In the event of gas leakage, avoid using open flames and electrical equipment to prevent fires or electrical sparks that could trigger an explosion. 4. Do not operate electrical switches: Do not operate electrical switches, including lights, TVs, computers, etc., to avoid causing sparks that may lead to accidents. 5. Contact the gas company or personnel: Promptly contact the local gas company or personnel, report the gas leakage, and request them to inspect and handle the situation. 6. Do not use a mobile phone or make phone calls: In case of suspected gas leakage, do not use a mobile phone or make phone calls to avoid static electricity that could cause an explosion. 7. Keep away from the leakage area: Stay as far away from the leakage area as possible to ensure your safety. Do not approach the gas boiler or the leakage point to avoid injury. Remember, handling gas boiler gas leakage is a dangerous task that requires caution. It is best handled by trained personnel to ensure safety.

Chemical cleaning of industrial boilers is a common method that effectively removes dirt and sediment from inside the boiler, enhancing heat exchange efficiency and extending the boiler's lifespan. The following are general steps and methods for industrial boiler chemical cleaning: Preparation: Turn off the boiler's power and gas supply, drain the water and steam from the boiler, and ensure the boiler is in a safe condition. Prepare the required chemical cleaning agents and cleaning equipment. Cleaning Agent Selection: Choose suitable chemical cleaning agents based on the boiler's material and the nature of the dirt. Common cleaning agents include acidic, alkaline, and chelating agents. Cleaning Agent Circulation: Dissolve the cleaning agent in an appropriate amount of water and circulate it into the boiler through a pump. Determine the circulation time and temperature of the cleaning agent based on the boiler's size and the extent of dirt. Cleaning Agent Action: During the circulation, the cleaning agent reacts chemically with the dirt inside the boiler, dissolving and decomposing it. Acidic cleaning agents can remove rust and scale, while alkaline cleaning agents can remove grease and organic matter. Rinsing and Neutralization: After the cleaning agent circulation, rinse the boiler with clean water to flush out the cleaning agent and dissolved dirt. At the same time, use a neutralizing agent to neutralize any remaining acidic or alkaline substances, ensuring the boiler's neutrality. Inspection and Maintenance: After cleaning, inspect the boiler to ensure the cleaning effect and normal operation. Perform corresponding maintenance and upkeep as needed. Points to Note During Industrial Boiler Chemical Cleaning: - Strictly follow the usage instructions and safety operating procedures for chemical cleaning agents to ensure the safety of the operators. - Choose suitable cleaning agents and methods based on the boiler's material and the nature of the cleaning agents. - Control the concentration, temperature, and circulation time of the cleaning agent to avoid unnecessary damage to the boiler. - Monitor the concentration and pH value of the cleaning agent in a timely manner during the cleaning process and adjust the cleaning conditions. - After cleaning, rinse the boiler to ensure that all cleaning agents and dirt are completely removed. - Perform boiler maintenance and upkeep promptly after cleaning to ensure normal operation and long-term use.

Excessive exhaust gas temperature in a thermal oil boiler may be due to several reasons: Incomplete combustion: If the fuel in a thermal oil boiler is not burned completely during the combustion process, it leads to a large amount of unburned fuel and harmful substances in the flue gas, causing the exhaust gas temperature to rise. Possible causes include insufficient fuel supply, improper adjustment of the burner, and burner wear. Excessive air: Excessive air can lower the combustion temperature, making the heat in the flue gas insufficient to reduce the flue gas temperature to a reasonable range. Possible reasons include improper adjustment of the burner and excessive opening of the air door. Flue blockage: Accumulation of ash, slag, or other impurities in the flue can obstruct the flow of flue gas, increasing the residence time of the flue gas and causing the exhaust gas temperature to rise. Abnormal thermal oil flow: Abnormal thermal oil flow, either too high or too low, can lead to uneven heat transfer, causing the flue gas temperature to rise. Overheating of the boiler: If the temperature control of the thermal oil boiler is not properly managed, resulting in overheating, it can increase the flue gas temperature. Design issues of the boiler: Design problems of the boiler, such as a small flue or poor flue gas flow, may also lead to excessively high 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 may include adjusting burner parameters, cleaning the flue, checking thermal oil flow and temperature control, etc. In severe cases, boiler system modification or repair may be necessary. Additionally, regular maintenance and inspections are important preventive measures against high exhaust gas temperature.
Our company attaches great importance to technological innovation and R&D, boasting 1 city-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. Equipped with over 600 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 key products and technologies, such as welding for temperature and pressure vessels, biomass boiler emission reduction, and waste heat recovery, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 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 from Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. This technology has been appraised as reaching international standards in the field of deep cryogenic vessel manufacturing at the provincial level.
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