Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation deep-freeze pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale thermal energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
A gas boiler is a heating equipment that uses gas or similar fuels. It generates heat by burning gas, heating water into steam or hot water, which is used for heating, hot water supply, or industrial production, among other applications. The working principle of a gas boiler involves mixing gas with air, igniting it to produce high-temperature combustion gases, and then transferring the heat to the water through a heat exchanger, thereby increasing the water temperature. Gas boilers offer advantages such as environmental friendliness, safety, and are widely used in residential, commercial, and industrial sectors.
The reasons for uneven heat distribution in steam boilers may include the following aspects: Uneven combustion: During the combustion process, an uneven mixture of fuel and air, or an improperly designed and adjusted burner, can lead to uneven combustion. This results in some areas producing more heat while others produce less. Pipe blockage: In the steam boiler's conveying pipes, the presence of blockages or scale can cause uneven heat transfer. Blockages or scale impede steam flow, limiting heat transfer in certain areas while allowing better heat transfer in others. Heat exchanger issues: If the heat exchangers in the steam boiler have scaling, corrosion, or blockages, it can lead to uneven heat transfer. These problems affect the heat conduction efficiency of the heat exchangers, impacting heat transfer in some areas. Water level issues: Inaccurate or unstable water level control in steam boilers can lead to uneven steam production. Both high and low water levels can affect steam production and distribution, resulting in uneven heat. Boiler load changes: Changes in the boiler load can also cause uneven heat distribution. When the load suddenly increases or decreases, the boiler's heat production and distribution may not adjust in time, leading to uneven heat. To address the issue of uneven heat distribution in steam boilers, regular inspection and maintenance of the boiler equipment are necessary to ensure the normal operation of combustion and heat exchange processes. Additionally, properly adjusting the burner and control systems, maintaining stable water levels, cleaning pipes and heat exchangers, and more are required to improve...
A thermal oil furnace is a device that uses thermal oil as the heat transfer medium, transferring heat energy to the equipment or process requiring heating through combustion or electric heating. The working principle of a thermal oil furnace involves heating the thermal oil to a certain temperature and then circulating it through a pump to the equipment or process being heated, transferring heat to the heated object. The thermal oil exchanges heat with the heated object in a heat exchanger, raising the temperature of the object while cooling down the oil, which then returns to the furnace for reheating in a continuous cycle. The heat transfer process in the thermal oil furnace mainly relies on the thermal conductivity of the thermal oil. With a high thermal conductivity, the oil can quickly transfer heat energy to the heated object, achieving effective heating. Additionally, thermal oil has high thermal stability, allowing it to operate stably at high temperatures and is resistant to decomposition or oxidation.
Thermal oil furnaces typically consist of the furnace body, combustion system, flue gas system, heat exchanger, circulating pump, and control system. The furnace body is the main part of the thermal oil furnace, used to contain the thermal oil and the combustion system. The combustion system is responsible for burning fuel to produce heat and heat the thermal oil. The flue gas system is used to exhaust the flue gas produced by combustion. The heat exchanger is the device where the thermal oil exchanges heat with the heated object. The circulating pump is responsible for circulating the thermal oil back to the furnace for reheating. The control system is used to monitor and control the operation of the thermal oil furnace, ensuring safe and stable operation.
Thermal oil furnaces offer high temperature control accuracy, fast heating speed, low energy consumption, and simple operation, and are widely used in industrial fields such as chemicals, textiles, food processing, papermaking, as well as in some special heating processes.
Chemical cleaning of industrial boilers is a common method used to effectively remove dirt and sediments from within 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 a suitable chemical cleaning agent based on the boiler's material and the nature of the dirt. Common cleaning agents include acidic cleaners, alkaline cleaners, and chelating agents, etc.
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 size of the boiler and the extent of the dirt.
Cleaning Agent Action: During the circulation, the cleaning agent reacts chemically with the dirt inside the boiler, dissolving and decomposing it. Acidic cleaners can remove rust and scale, while alkaline cleaners can remove grease and organic matter.
Rinsing and Neutralizing: After the cleaning agent circulation is complete, rinse the boiler with clean water to flush out the cleaning agent and dissolved dirt. Simultaneously, 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 effectiveness and normal operation. Perform necessary maintenance and upkeep as required.
Points to note when conducting industrial boiler chemical cleaning:
- Strictly follow the usage instructions and safety operating procedures for chemical cleaning agents to ensure the safety of the operators.
- Select appropriate cleaning agents and methods based on the boiler's material and the properties 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.
- Flush the boiler after cleaning to ensure the complete removal of cleaning agents and dirt.
- Perform boiler maintenance and upkeep promptly after cleaning to ensure normal operation and long-term use.
ZJ Special Equipment adheres to the great vision of "realizing employee dreams, creating customer value, and striving for the prosperity and strength of our motherland," focusing solely on the development of green energy equipment, dedicating high-value products and services to society!




































