燃氣熔鹽爐是以天然氣為燃料，以熔鹽為熱載體，利用熔鹽泵強制液相循環，將熱能輸送給用熱設備，繼而返回重新加熱的直流式特種工業爐。整個系統由熔鹽供熱系統、燃燒系統及控制系統構成:

Gas molten salt furnace is a special industrial furnace that uses natural gas as fuel and molten salt as a heat carrier. It uses a molten salt pump to force liquid-phase circulation, transfer heat energy to the heating equipment, and then return it to reheat. The entire system consists of a molten salt heating system, a combustion system, and a control system:

熔鹽供熱系統由熔鹽爐本體、熔鹽泵、熔鹽槽及有關輸送管線、閥門組成。

The molten salt heating system consists of the molten salt furnace body, molten salt pump, molten salt tank, and related conveying pipelines and valves

燃燒系統：主要由燃氣供給系統、燃燒器、熔鹽爐、煙道防爆門、空氣預熱器、煙氣余熱換熱器、煙囪及有關閥門管線組成。

Combustion system: mainly composed of gas supply system, burner, molten salt furnace, flue explosion-proof door, air preheater, flue gas waste heat exchanger, chimney, and related valve pipelines.

控制系統分為動力控制和儀表顯示控制兩部分。

The control system is divided into two parts: power control and instrument display control.

動力控制主要控制熔鹽罐內的電加熱器，熔鹽循環泵、風機、燃燒器等設備的起動與停止，同時循環泵與燃燒器之間進行聯鎖控制以保證加熱爐的安全運行。Power control mainly controls the start and stop of the electric heater, molten salt circulation pump, fan, burner and other equipment in the molten salt tank. At the same time, interlocking control is carried out between the circulation pump and burner to ensure the safe operation of the heating

儀表顯示控制：熔鹽爐負荷是根據智能儀表出口油溫的設置，通過儀表智能計算，進行 PID 調節功能， 自動調節 燃料量與空氣供給量，以充分滿足控制要求.

Instrument display control: The load of the molten salt furnace is set based on the outlet oil temperature of the intelligent instrument. Through intelligent calculation by the instrument, PID adjustment function is performed to automatically adjust the fuel and air supply to fully meet the control requirements

燃氣熔鹽爐廣泛應用在固堿蒸發濃縮、三聚氰胺制取、氫氧化鋁溶出、廢液廢油高溫再生等化工單位；也可應用在太陽能光熱發電的儲能。

Gas molten salt furnaces are widely used in chemical units such as solid alkali evaporation concentration, melamine production, aluminum hydroxide leaching, and high-temperature regeneration of waste liquid and oil; It can also be used for energy storage in solar thermal power generation.

燃氣熔鹽爐出口應用于天燃氣豐富的中東和西亞國家（如俄羅斯，烏磁別克斯坦，伊郎，伊拉克，沙特阿拉伯，土耳其，印度，巴基斯坦）各種需要進行高溫加熱的各行各業。

The export of gas-fired molten salt furnaces is used in various industries requiring high-temperature heating in Middle East and West Asia countries rich in natural gas (such as Russia, Ukraine, Iran, Iraq, Saudi Arabia, Türkiye, India, Pakistan).

注：熱效率指爐體熱效率，配置余熱回收裝置后，系統熱效率可大于90%以上。

Note: Thermal efficiency refers to the thermal efficiency of the furnace body. After configuring a waste heat recovery device, the system's thermal efficiency can exceed 90% or more.

燃氣熔鹽爐特點：Characteristics of Gas Molten Salt Furnace:

1. 低壓高溫，安全性強，與導熱油相比在相同的壓力下可獲得更高的使用溫度；

1. Low pressure and high temperature, strong safety, and can achieve higher operating temperatures compared to heat transfer oil under the same pressure;

2. 供熱溫度穩定，能準確地進行負荷、溫度調整；

2. Stable heating temperature, able to accurately adjust load and temperature;

3. 系統熱效率高，普遍高于92%以上；

3. The thermal efficiency of the system is high, generally above 92%;

4. 運行控制和安全監測裝備完備，有效降低運維成本；

4. Complete operation control and safety monitoring equipment, effectively reducing operation and maintenance costs;

5. 自動控制：機械化、全自動控制、比例調節、PLC可編程或DCS人機對話集成控制技術；

5. Automatic control: Mechanized, fully automatic control, proportional adjustment, PLC programmable or DCS human-machine dialogue integrated control technology;

6. 熔鹽爐因供熱負荷和循環流量不同，大多采用二層或三層圓盤管形式，內圈盤管為輻射受熱面，中圈盤管、外圈盤管為對流受熱面，三層盤管并聯運行，結構簡單，使用方便。

6. Due to different heating loads and circulating flow rates, molten salt furnaces mostly adopt the form of two-layer or three-layer circular tubes. The inner coil is a radiating heating surface, while the middle and outer coils are convective heating surfaces. The three-layer coils operate in parallel, with a simple structure and convenient use.

7. 燃氣熔鹽爐為立式，占地面積少，爐管內熔鹽可以靠自重排空，燃燒器分布在爐體的頂部或者在底部，筒體主材： 12Cr1MoVR， 管材：12Cr2MoG。

7. The gas molten salt furnace is vertical and occupies a small area. The molten salt inside the furnace tube can be emptied by its own weight. The burners are distributed at the top or bottom of the furnace body. The main material of the cylinder is 12Cr1MoVR, and the pipe material is 12Cr2MoG.

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