常州市上能锅炉有限公司燃气熔盐加热炉系统功能间介
燃气熔盐加热炉是以熔盐为热载体,利用熔盐泵强制液相循环,将热能输送给用热设备后,继而返回重新加热的直流式特种工业炉。
燃气熔盐加热炉的熔盐是由盐类熔化形成的一种导热介质,又称导热熔盐、热媒体。 燃气熔盐加热炉的熔盐为硝酸钾、亚硝酸钠、硝酸钠的混合物。
燃气熔盐加热炉的熔盐作为一种新型热载体,具有传热系数高、热稳定性好、使用周期长、成本低、安全性能可靠等优点。
燃气熔盐加热炉的熔盐加热系统由熔盐加热炉本体、熔盐高温循环泵及熔融系统构成,他能提供使用温度180℃~550℃的工艺温度,供三聚氰胺、苯酐、顺酐、丙烯酸、氧化铝、尿素、邻苯基酚酐、乙氰、固碱、裂化油、制冷剂等化工行业中需要的高温加热生产工艺。
燃气熔盐加热炉的炉本体是熔盐加热系统中的核心部件,所用的材质是由专用的耐热钢板和耐热钢管制成。
燃气熔盐加热炉的熔融系统是由熔盐罐,熔盐循环泵构成,。在熔融系统中,熔盐罐的主要作用是储存热量。为用户(反应器或者换热器)提供所需要的热量,或者把用户多余的热量储存在熔盐罐中。
燃气熔盐加热炉的熔盐罐一般是圆筒形卧式罐,开始使用时将固体熔盐放入熔盐罐中,通过某种加热方式将熔盐熔化,达到所需要的温度后,利用熔盐泵将熔盐输送到熔盐炉、反应器、换热器、蒸发器等需要换热的装置,达到换热的目的。
燃气熔盐加热炉的余热回收装置:
燃气熔盐加热炉的烟气出口处设置余热锅炉作为余热回收装置,所产生的热源供生产系统用 ,为了进一步提高加热炉综合热效率,在余热锅炉后增加空气预热器作为余热回收装置,可以使烟气温度从290℃降至170℃左右,生产热空气,供燃烧器助燃空气用,可实现高达93%的高效率热利用,回收烟气余热,提高燃气熔盐加热炉的运行热效率。燃气熔盐加热炉的烟气排放符合GB13271-2012《锅炉大气污染物排放标准》要求燃气熔盐加热炉的供热能力:360~14000kW(30~1200万大卡/时)
燃气熔盐加热炉的特点:
1、燃烧稳定;2、能在较低的运行压力下,获得较高的工作温度;
3、供热温度稳定,能精确地进行调整,热效率高;4、运行控制和安全检测装置完备。
燃气熔盐加热炉的燃烧系统的燃烧器:一般选配国外进口产品,技术成熟,性能可靠。燃气熔盐加热炉的燃烧器是由几大模块结构组合而成,主要有①燃烧器② 鼓风机③控制器
燃气熔盐加热炉的控制系统分为动力控制和仪表显示控制两部分:
燃气熔盐加热炉的动力控制主要控制熔盐循环泵、风机、燃烧器等设备的起动与停止,同时循环泵与燃烧器之间进行联锁控制以保证加热炉的安全运行。
燃气熔盐加热炉的仪表显示控制采用检测燃气熔盐加热炉盘管和燃气熔盐加热炉管道温度控制调节燃烧器,进行燃气熔盐加热炉起动时空管预热和正常运行中通过出口盐温调节燃烧器进行负荷调节,进出口熔盐温度显示、燃气熔盐炉加炉本体排烟温度显示及最终排烟温度显示,采用温度信号控制燃烧器,使其达到自动控制功能。
客户如需要购买:燃煤导热油锅炉,燃气导热油炉,燃气蒸汽锅炉,燃气熔盐炉,燃气熔盐加热炉,燃气热风炉,电加热导热油炉,请关注常州市上能锅炉有限公司网站产品(www.czrsgl.com,www.czrfl.cn,www.rsdryl.com )请联系热能专业人士芮总,电话:0519-82052399
Functional Intermediary of Gas Molten Salt Heating Furnace System in Changzhou Shangneng Boiler Co., Ltd.
Gas-fired molten salt furnace is a special industrial furnace with molten salt as its heat carrier, which uses molten salt pump to force liquid phase circulation, transfers heat energy to the heating equipment, and then returns to the reheated DC furnace.
The molten salt of gas molten salt heater is a heat conducting medium formed by the melting of salt, also known as heat conducting molten salt and heat medium. The molten salt of gas molten salt heating furnace is a mixture of potassium nitrate, sodium nitrite and sodium nitrate.
As a new type of heat carrier, molten salt of gas molten salt furnace has the advantages of high heat transfer coefficient, good thermal stability, long service life, low cost and reliable safety performance.
The molten salt heating system of gas molten salt heater consists of molten salt heater body, molten salt high temperature circulating pump and melting system. It can provide the process temperature of 180 ~550 (?) C for high temperature heating production of melamine, phthalic anhydride, maleic anhydride, acrylic acid, alumina, urea, phenylphenolic anhydride, ethylene cyanide, solid alkali, cracking oil, refrigerant and other chemical industries. 。
Furnace body of gas molten salt heater is the core component of molten salt heating system. The material used is made of special heat-resistant steel plate and heat-resistant steel pipe.
The melting system of gas molten salt furnace is composed of molten salt tank and molten salt circulating pump. In the melting system, the main function of molten salt tank is to store heat. Provide the user (reactor or or heat exchanger) with the required heat, or store the user's excess heat in molten salt tank.
The molten salt tank of gas molten salt heater is generally a cylindrical horizontal tank. When it is used, the solid molten salt is put into the molten salt tank. The molten salt is melted by some heating method. After the required temperature is reached, the molten salt is transported to the devices requiring heat exchange such as the molten salt furnace, reactor, heat exchanger and evaporator by the molten salt pump to achieve the purpose of heat exchange.
Waste heat recovery device of gas molten salt heating furnace:
In order to further improve the comprehensive heat efficiency of the heating furnace, air preheater is added after the waste heat boiler as the waste heat recovery device, which can reduce the temperature of flue gas from 290 to about 170 degrees Celsius and produce hot air for combustion-supporting air of the burner. 93% high efficiency heat utilization, recovery of waste heat from flue gas, improve the operation thermal efficiency of gas molten salt heating furnace.
Characteristics of gas-fired molten salt heating furnace:
1. The combustion is stable.
2. Higher working temperature can be obtained under lower operating pressure.
3. The heating temperature is stable, can be adjusted accurately, and the heat efficiency is high. 4. The operation control and safety detection devices are complete.
Burner of combustion system of gas molten salt heater: Generally imported products are selected and equipped with mature technology and reliable performance. The burner of gas molten salt heater is composed of several modules, which mainly include: burner, blower and controller.
The control system of gas molten salt furnace is divided into power control and instrument display control.
The power control of gas molten salt heater mainly controls the starting and stopping of molten salt circulating pump, fan, burner and other equipment. At the same time, the interlocking control between circulating pump and burner is carried out to ensure the safe operation of the heater.
The instrument display control of gas molten salt heater adopts the temperature control burner to detect the coil of gas molten salt heater and the pipeline of gas molten salt heater. The load regulation of gas molten salt heater is carried out by adjusting the burner through outlet salt temperature during the pre-heating and normal operation of gas molten salt heater starting time and space pipe, the temperature display of molten salt import and export, the temperature display of gas molten salt heater adding body and the final exhaust gas. Smoke temperature display adopts temperature signal to control burner to achieve automatic control function.
If customers need to buy: gas molten salt furnace, gas molten salt furnace, gas hot blast furnace, electric heating oil furnace, please pay attention to the website products of Changzhou Shangneng Boiler Co., Ltd. (www.czrfl.cn,) please contact Mr. Rui, a thermal energy professional, tel: 0519-820529.
请关注上能锅炉公司网站:www.czrsgl.com,www.czrfl.cn,www.rsdryl.com
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