Thermal oil boiler is a closed loop system of special industrial boiler that uses thermal oil as the heat carrier, and the liquid phase is forced to circulate through the circulating oil pump to deliver heat to the heat-using equipment and then return to the boiler for reheating. Its working principle is based on the circulation flow of the heat carrier, the heat carrier in the heating system to absorb heat, through the pipeline to each heat-using equipment, the release of heat and then return to the boiler to reheat, forming a closed loop system.
The key components of the thermal oil boiler include: heat source, common coal, oil, gas, electric heating, etc., to provide heat for the system; heat transfer oil, as a heat transfer medium, need to have good thermal stability, high temperature fluidity and heat transfer performance; heat exchanger, to achieve the transfer of heat from the heat source to the heat transfer oil as well as from the heat transfer oil to the heat-using equipment; circulating pumps to drive the heat transfer oil circulation flow in the system to ensure that the heat is effectively transported; control system, control system, to ensure the effective transfer of heat, to ensure the heat transfer of heat, to ensure that the heat transfer system, to ensure that the heat transfer system is effective. Heat is effectively transported; control system, real-time monitoring and control of the system temperature, pressure, flow and other parameters to ensure the safe and stable operation of the equipment.
The thermal oil boiler adopts a closed-loop design, which can effectively avoid the contact between the heat-conducting oil and the outside air, prevent the oxidization and deterioration of the heat-conducting oil, and extend its service life. At the same time, the system can be operated at high operating temperatures, usually between 250°C and 350°C, with some special models even higher.
In the heat transfer process, the heat source to heat conduction oil heating, so that its temperature rises, with high thermal energy of the heat conduction oil in the circulating pump under the action, along the pipeline to the various heat equipment. In the heat exchange with the heat equipment, heat transfer oil will carry its own heat to the heat equipment, used to meet its process requirements, while its own temperature is reduced. After the cooling of the heat transfer oil back to the thermal oil boiler, heated again, so the cycle is repeated, to achieve the continuous transmission and utilization of heat.
In the crude oil tank area, thermal oil boiler is used to heat the crude oil storage tank, which can effectively reduce the viscosity of crude oil, prevent the solidification of crude oil, and facilitate the storage and transportation of crude oil. In the gas treatment of natural gas power stations, thermal oil boiler can provide a stable heat source for gas purification, compression and other processes to ensure the smooth progress of the natural gas treatment process. In the biomass combined heat and power plant, it can supply heat for biomass gasification, combustion and other processes to improve the energy conversion efficiency. In the solar thermal power station, the thermal oil boiler is used as an auxiliary heat source to provide stable heat for the system when solar energy is insufficient to ensure the continuity and stability of power generation.
Food processing requires high temperature accuracy. With its accurate temperature control capability, thermal oil boiler can provide stable and accurate heat source for baking, frying, steaming and other food processing. Whether it is bread baking on the strict requirements of the temperature curve, or chocolate melting on the temperature precision control, thermal oil boiler can meet the demand to ensure the quality and taste of food.
The batch processing in the production of pharmaceuticals needs to be carried out under specific temperature conditions, the wide range of operating temperatures of the thermal oil boiler, so that it can adapt to the temperature requirements of different pharmaceutical production processes. From the drug synthesis reaction to drug drying, concentration and other post-treatment processes, thermal oil boiler can provide a stable and reliable heat source to protect the quality and safety of drug production.
In chemical production, many process liquids and polymers need to be heated by indirect heating to avoid local overheating and material decomposition that may be caused by direct heating. thermal oil boiler can be realized through the heat exchanger of these materials mild, uniform heating. At the same time, in the chemical production process, the waste heat generated can be recycled through the thermal oil boiler to achieve the secondary use of energy, improve energy utilization, and can also be used for low-pressure cogeneration, further reducing production costs.
Plastic manufacturing process needs to be carried out in a high-temperature environment, thermal oil boiler has a good high-temperature thermal stability, can be in high-temperature conditions for a long time and stable operation, for the plastic extrusion, injection molding, blow molding and other molding processes to provide a stable high-temperature heat source. In addition, its working characteristics can also effectively prevent the degradation of heat-conducting fluids at high temperatures, to ensure the quality and performance of plastic products.
In the production process of medium density fiberboard (MDF), oriented strand board (OSB), plywood and other engineered wood products, thermal oil boiler provides heat for the hot pressing, curing and other processes of wood. By precisely controlling the temperature and pressure, it can ensure the quality and strength of the wood panels and improve the productivity and product qualification rate of wood processing.
In metal surface treatment process, such as electroplating, anodizing and other processes, the treatment solution needs to be heated to improve the treatment effect and product quality. thermal oil boiler has good chemical resistance and thermal conductivity, which can meet the heat source requirements of metal surface treatment process. In the automotive, electronics, aerospace and other industries with high quality requirements for metal products, the application of thermal oil boiler effectively improves the surface performance and service life of metal products.
In the manufacturing sector, thermal oil boiler can provide heating for equipment such as flatbed ironing machines to meet the high temperature requirements of industrial ironing. Compared with the steam system, thermal oil boiler system has lower maintenance costs, no need to frequently deal with the steam system scale, corrosion and other issues, and heat transfer efficiency is higher, can effectively reduce the operating costs of enterprises.
thermal oil boiler can achieve high temperature heating under low pressure conditions, compared with steam boilers at high pressure to produce high temperature steam, its system pressure is lower, the pressure resistance of the equipment and piping requirements are relatively low, reducing the investment in equipment and operational risks. At the same time, its temperature control precision is high, and it can control the temperature fluctuation within a very small range to meet the strict requirements of various precision production on temperature. In addition, due to the use of closed-loop circulation system, heat loss is small, energy utilization efficiency is high, and the system structure is relatively simple, the daily maintenance workload is small, and the maintenance cost is low.
When selecting a thermal oil boiler, the first thing to do is to determine the specifications and capacity of the equipment according to the actual heat demand, to ensure that it can meet the maximum heat load in the production process. Secondly, the selection of heat transfer oil is crucial, and it is necessary to select the appropriate variety of heat transfer oil according to the operating temperature range, system pressure, use of the environment and other factors, in order to ensure that the heat transfer oil in the system for a long time and stable operation. In addition, the safety control system is the key to ensure the safe operation of the equipment, should be selected with a perfect over-temperature, overpressure protection, as well as level alarm, chain control and other functions of the thermal oil boiler, to ensure that the equipment in the event of anomalies can be automatically shut down, to avoid the occurrence of safety accidents.
Regularly conduct a comprehensive inspection of the thermal oil boiler, including the appearance of the equipment, piping connections, valve status, etc., to detect and deal with potential safety hazards in a timely manner. Regular sampling and analysis of heat transfer oil, testing its physical and chemical performance indicators, such as acid value, flash point, viscosity, etc., according to the test results in a timely manner to replace the performance of the decline in the heat transfer oil, to ensure that the heat transfer performance of the heat transfer oil and system safety. At the same time, to regularly calibrate the system temperature, pressure, flow and other detection instruments to ensure the accuracy of the control system, and the safety accessories of the equipment, such as safety valves, pressure gauges, etc., to ensure that it can work properly in case of emergency.
Compared with steam boiler, thermal oil boiler does not need to consume a large amount of water resources for generating steam, and there is no steam condensate recycling treatment and other issues, the operating cost is lower. In terms of heating stability, thermal oil boiler can respond quickly to temperature changes and provide stable heat output, while steam boiler in the steam pressure fluctuations, temperature control is relatively unstable. In addition, thermal oil boiler has a wider scope of application, can meet a variety of production needs from low to high temperature, so in many application scenarios, thermal oil boiler becomes a better choice.
With its unique working principle and performance advantages, industrial thermal oil boilerhas a wide range of important applications in energy, food and beverage, pharmaceutical, chemical, plastic processing and many other industrial fields. Different industries on the demand for industrial thermal oil boilerhas its own characteristics, in the actual application, enterprises should fully consider their own production process requirements, heat characteristics and other factors, a reasonable choice of suitable industrial thermal oil boilersystem, and do a good job of equipment maintenance, in order to give full play to its effectiveness, improve production efficiency, reduce production costs, and promote the sustainable development of industrial production.
