Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001 and is located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates seven business centers: boilers, deep-freezing vessels, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. Currently, the company employs 710 staff, including 247 engineers and technicians, and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-Tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Industry and Information Technology Department. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Yes, thermal oil boilers typically feature some self-protection functions to ensure safe operation and prolong their service life. 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 of the thermal oil and avoiding equipment damage and safety accidents. Overpressure Protection: Thermal oil boilers also have overpressure protection devices that automatically shut 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 are usually equipped with automatic control systems that can automatically adjust the gas supply and combustion effect based on set operating parameters, maintaining a stable combustion state and avoiding incomplete or excessive combustion. Temperature Control and Adjustment: Thermal oil boilers are typically equipped with temperature control and adjustment devices that can automatically regulate the circulation and heating of the thermal oil based on the set working temperature, maintaining a stable working temperature and avoiding both high and low temperatures. Water Level Protection: For some thermal oil boilers, especially water tube boilers, water level protection devices are also provided to monitor the water levels of the thermal oil and water. When the water level is abnormal, the protection device automatically shuts off the burner's gas supply to prevent dry burning and thermal oil leakage. It should be noted that although thermal oil boilers have self-protection functions, they still require regular inspections and maintenance to ensure the normal operation and reliability of these protection devices. Additionally, operators need to understand and master the working principles and operation methods of these self-protection functions to ensure safe operation.

The purpose of deoxygenation in industrial boiler make-up water is to reduce oxygen corrosion and bubble formation within the boiler, ensuring the safety and normal operation of the boiler and pipeline system. The main methods of deoxygenation include: 1. Mechanical Deoxygenation: Removing oxygen from water using physical methods. Common mechanical deoxygenation equipment includes deaerators and degassers. Deaerators remove oxygen by atomizing water into a film, utilizing the difference in gas solubility. Degassers, on the other hand, remove oxygen by atomizing water into fine droplets, also utilizing the difference in gas solubility. 2. Thermal Deoxygenation: Removing oxygen from water by heating the water body, taking advantage of the property that oxygen solubility decreases with temperature. Common thermal deoxygenation equipment includes deaerating pots and deaerators. Deaerating pots release oxygen from water by heating it to saturation temperature. Deaerators heat the water to lower its oxygen solubility, thereby removing oxygen. 3. Chemical Deoxygenation: Removing oxygen from water by adding chemicals that react with it, thus eliminating oxygen. Common chemical deoxygenating agents include salts and reducers. Chemical deoxygenation is often used in high-pressure boiler systems and can effectively remove oxygen from water. The choice and method of deoxygenation depend on the specific boiler system and water quality. In practice, a combination of deoxygenation methods is often used to achieve the desired deoxygenation effect. The selection and operation of deoxygenation equipment should be assessed and adjusted based on the actual situation to ensure the safety and normal operation of the boiler system.

WNS Low-Nitrogen Condensing Hot Water Boilers offer the following advantages: - Low Nitrogen Emissions: Utilizing low-nitrogen combustion technology, these boilers significantly reduce NOx emissions through optimized combustion processes and burner design. This helps minimize environmental pollution. - High Thermal Efficiency: Equipped with condensing technology, these boilers increase energy efficiency by recovering heat from flue gases. The thermal efficiency typically exceeds 90%, higher than traditional hot water boilers, aiding in energy conservation and cost reduction. - Safety and Reliability: The control systems and safety devices of WNS Low-Nitrogen Condensing Hot Water Boilers provide excellent safety performance. They are equipped with multiple safety features like overheat protection, overpressure protection, and water level protection, which automatically monitor and control the boiler's operation to ensure safe operation. - Flexibility: Suitable for various applications such as industrial, commercial, and residential, these boilers can adapt to different thermal load requirements, offering strong flexibility. They can also be integrated with other systems like solar hot water systems and ground-source heat pump systems to further enhance energy efficiency. - Easy Operation and Maintenance: The operation and maintenance of WNS Low-Nitrogen Condensing Hot Water Boilers are straightforward.

Safety requirements for steam boiler valves mainly include the following aspects: Valve Selection: Choose the appropriate type and specification of valves for steam boilers. Valves should comply with relevant standards and specifications, and possess characteristics such as high-temperature resistance, pressure resistance, and corrosion resistance. Valve Installation: Valves should be installed correctly at the corresponding position on the steam boiler. During installation, ensure the connection is secure, the seal is reliable, and leaks and loosening are prevented. Valve Operation: The operation of the valve should be convenient, flexible, and capable of accurately controlling steam flow and pressure. The handle or device should indicate the direction of opening and closing, as well as the corresponding operation method. Valve Sealing: The sealing performance of the valve is crucial. Valves should have good sealing properties to prevent steam leakage and energy loss. The sealing surface should be flat and smooth, and able to withstand high temperatures and wear. Valve Maintenance: Regularly inspect and maintain valves to ensure their normal operation and safety performance. This includes cleaning the valves, checking the sealing surfaces, lubricating moving parts, and promptly repairing or replacing damaged components. Safety Valve: A safety valve must be installed on the steam boiler to protect its safe operation. The safety valve should comply with relevant standards and specifications and be capable of automatically opening to release over-pressurized steam when exceeding the set pressure, preventing boiler explosions. Valve Identification: Valves should be marked with their type, specification, working pressure, and flow rate information. This helps operators correctly identify and operate the valves, avoiding incorrect operations and accidents. It should be noted that the above safety requirements are general guidelines, and specific safety requirements should be determined based on the type, scale, and operating environment of the steam boiler. When using valves, follow relevant laws, regulations, and safety operation procedures to ensure the safe operation and effective control of the valves.
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 and 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 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 of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement identification has determined that the technology level in the field of deep cryogenic container manufacturing has reached an international standard.
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