智能锅炉汽包液位计

智能锅炉汽包液位计

Intelligent boiler drum fluid level gauge

一、产品简介 Product introduction

锅炉汽包水位测量的重要性是人所共知的，然而长期以来锅炉汽包水位连续测量技术方面采用的平衡容器式（差压式）测量方法存在许多无法改进的缺陷，主要体现在以下几个方面： It’s well known that the measurement on fluid level of boiler drum is very important, but for a long time, the balance conteiner type (Pressure Gradient type) used for the continuous measurement technology of boiler drum fluid level has had many defects that could not be improved, it mainly embodied in the following aspects:

1、不能实施全工况测量，存在“假水位”测量、在锅炉启、停、排空、连排、事故等不稳定运行工况下建立稳定差压条件时间较长、恢复时间较长或干脆不能建立正常差压，需要人工干预等问题。It cannot perform the measurement under all states, and still exists following problems: the measurement on “shrink and swell in drum boilers”, too long a time to set up steady pressure gradient under the unstable operating conditions such as start. Stop, drain, constant discharge and accident of boilers; too long a time to recover or cannot set up the normal pressure gradient; need manual intervention etc;
2 、在稳定工况条件下，由于受结构限制，不能彻底解决因水侧绝温造成的系统测量误差的补偿问题。在锅炉缺、满水等事故工况条件下，系统测量误差过大可能带来严重后果 Under the steady operating conditions, because of structural limitation, it cannot completely solve the problem for the compensation of system measurement error due to temperature insulation on the water side. While in the accident operating conditions such as lack/ full of water in boiler, the too large error of system measurement may result in serious consequences accordingly.
3、结构复杂，静密封点多，施工规模大并存在冬季保温问题。The structure is quite complex, too much static sealing points were required, construction size is large and the existed problem for heat preservation in winter;
4、测量时滞较长，不能即时反应锅炉水位变化，测量信号调节质量差。 Time-lag for measurement is too long, cannot reflect the fluid level changes inside the boiler instantly, the measuring signal has quite poor adjustment quality;
5、由于存在冷凝筒放热，使用成本极高。 Because of condensation drum heat radiation, it causes too higher using cost.
这些缺陷都是由于差压式测量原理及其对系统取样结构的不合理造成的，无法改进。在非正常工况下给锅炉安全运行造成了极大隐患。为彻底解决汽包水位测量存在的问题，我公司针对锅炉汽包水位测控工况专业设计生产出FY2G系列智能锅炉汽包液位计 Those defects are all generated from the principle of pressure gradient measurement and the irrational pling structure of system, and cannot be improved at all. Under the abnormal operating conditions it may cause great hidden trouble for the safety operation of boiler. To completely solve such existing problem for the fluid level measurement on boiler drum, aimed to the measurement and control operating conditions for fluid level of boiler drum, our company has developed and manufactured the intelligent boiler drum fluid level gauge in FY2G series in specialty.

FY2BGL系列智能锅炉汽包液位计，采用独特结构，耐高温、高压，其中变送器利用液位变化与其对测量探极产生的电容变化之间的关系，通过专用模式系统软件将检测的电容变化经各种补偿计算后输出与物位成正比的4-20mADC标准信号。The intelligent boiler drum fluid level gauge in FY2G series adopts the unique structure with high temperature/ pressure resistance properties, there the transducer shall utilize the relationship between the fluid level changes and the change in capacitance it brought to the detection probe, through the dedicated mode system software it can treat the measured change in capacitance with various compensation calculation to output the 4-20mA DC standard signal proportional to the material position.

1. 具有全工况条件下液位准确连续测控功能。 It has the continuous measurement function on the fluid level under all operating conditions;

2. 能够对液相介质、介电常数变化、汽相介质、介电常数变化同时进行自动补偿。It can make the automatic compensation on both the liquid phase medium & diric constant change, vapor phase medium & diric constant change at the e time;

3. 按键调整、轻松标定、带自诊断，全温度范围、测量系统，温漂不超过0.1PF，电极采用非金属材质，机电一体化。 With the measurement system in key adjustment, easy calibration, self-diagnosis and full temperature range, its temperature drift will not exceed 0.1PF and the rode was made with non-metal material, with mechanical-rical integration.

4. FY2G系列智能锅炉汽包液位计耐高温、高压、寿命长、高可靠、高精度、高稳定。The intelligent boiler drum fluid level gauge in FY2G shall he the advantages of high-temperature/ pressure resistance, long service life, with high reliability, high accuracy and high stability.

5. 适用于各种规格的工业锅炉、汽包等压力容器的液位测控。It can be applied for the fluid level measurement and control on those pressure vessels as the industrial boiler ,steam drum in various specifications.

三、主要性能指标 Main performance index

Measuring range: 测量范围：350mm 440mm 600mm 800mm 1000mm特殊规格可订做 special requirements can be customized accordingly;

Wong pressure 工作压力：0～16MPa;

Wong temperature 工作温度：0°C~550°C;

Output signal: 4-20mA, 4-20mA overlapped with 485 communication protocol , 4-20mA overlapped with HART protocol 输出信号：4-20mA、4-20mA叠加485通讯协议、4-20mA叠加HART协议;

Long term stability 长期稳定性：≤0.2%FS/年

Accurate grade 精度等级：0.5%FS;

Mounting mode: 固定方式：1.螺纹安装 screw thread mounting

2.法兰安装， Flange mounting

3.特殊要求请在订货前说明 special requirements please specify before ordering

Explosion-proof symbol 防爆标志：ExiallCT6 Ga；

四、选型表 Sion table

八、订货须知 Ordering instruction

1.测量范围 Measuring range

2.测量介质 Measuring medium

3.测量压力 Measuring pressure

4.测量温度 Measuring temperature

5.连接方式及标准 Connection modes and standards