Gas/oil steam generator is a thermal energy conversion device that utilizes clean fuels such as natural gas and liquefied petroleum gas (LPG). By generating thermal energy through combustion, it rapidly heats water into steam. The core function involves converting chemical energy (gas) into thermal energy, which is then used through heat exchange to vaporize water, ultimately producing high-temperature, high-pressure steam. This system provides stable thermal energy support for industrial production, public services, and other applications.
operational principle
The operation of gas steam generator follows the core logic of “fuel combustion-heat transfer-water vapor conversion”, the specific steps are as follows:
Fuel premixing and combustion: the gas enters the burner through the pipeline, is fully mixed with air in proportion, and is ignited in the combustion chamber to produce high temperature flame (temperature can reach more than 1000℃);
Heat transfer: The high-temperature flame transfers heat to the water flowing inside the heat exchanger (such as finned tubes, water pipes or smoke pipes), so that the water temperature rises rapidly to the boiling point (100℃ or above);
Steam generation and separation: water absorbs heat and vaporizes to form steam, which is removed by steam-water separation device (such as cyclone separator, corrugated plate separator) to produce dry and saturated steam;
Waste heat recovery (optional): Some advanced equipment adopts condensation technology to recover waste heat from the flue gas after combustion (the exhaust temperature can be reduced to 50-60℃), further improving the thermal efficiency (up to 98% or more).
Compared with traditional coal-fired and oil-fired boilers, gas-fired steam generators have significant advantages:
High efficiency and energy saving: the combustion efficiency can reach 90%-98%, much higher than the coal-fired boiler (about 70%-80%); the condensation technology can recover the waste heat, and the energy utilization rate is 30% higher than the traditional equipment;
Environmental protection and low carbon: using clean energy as fuel, there is almost no smoke and dust emission during combustion, and the emission of nitrogen oxide (NOₓ) can be controlled below 50mg/m³ (in line with the national ultra-low emission standard); compared with coal-fired boilers, carbon emissions are reduced by more than 40%;
Safety and reliability: equipped with multiple safety protection devices (such as flame detector, pressure controller, temperature sensor, water shortage protection), real-time monitoring of the operating status, automatic shutdown in abnormal conditions, to avoid safety accidents;
Intelligent and convenient: Equipped with PLC or IoT control systems, it supports remote monitoring and parameter adjustment (such as pressure, temperature, and steam flow). The intuitive interface reduces manual intervention.
Compact and flexible: small size (about 1/3 of the volume of the traditional boiler under the same evaporation capacity), small footprint, suitable for limited production environment (such as urban factory, workshop) 123578.
Main application areas
Gas steam generators are widely used in a variety of industries to meet the thermal energy needs of different scenarios:
Industrial manufacturing: chemical industry reactor heating, material drying; textile industry printing and dyeing, bleaching process; paper industry pulp cooking; rubber industry vulcanization molding;
Food processing: sterilization of canned foods (such as canned fruits and canned meats), baking (bread and cake fermentation), seasoning production (soy sauce and vinegar boiling), and sterilization of fruit juice drinks;
Energy and buildings: The power industry drives steam turbine power generation (high efficiency of combined cycle power generation); building heating (provides hot water or steam heating for homes, hospitals, and shopping malls);
Agriculture and healthcare: Greenhouse cultivation controls temperature and humidity to promote plant growth; Medical devices undergo high-temperature sterilization (e.g., surgical instruments, syringes).
Public service: High-temperature cleaning for laundry industry (removing stubborn stains, such as hotel bed sheets and hospital bedding); steaming food for catering industry (such as baozi, mantou, and seafood) .
Typical structure
The structure of the gas steam generator can be divided into four core parts:
Combustion system: including burner, gas valve, air conditioning device, responsible for gas and air mixing and stable combustion;
Heat exchange system: mainly composed of heat exchanger (core component), water pipe and smoke pipe, to realize the transfer of heat energy from flame to water;
Control system: integrates PLC, sensors (pressure, temperature, water level), and alarm module to achieve automated operation (such as automatic water replenishment and overpressure shutdown);
Safety protection system: includes water shortage protection (to prevent dry burning), overpressure protection (to prevent excessive pressure), overheating protection (to prevent damage to heat exchanger), flame detection (to ensure normal combustion) and other functions to ensure equipment safety