集中供热系统由三大部分组成：热源、热网和热用户。其目的在于维持室内气温适合，使建筑物始终处于得热与失热的平衡状态。其中热网承担着将热源的热量及时地输送、分配给各个热用户的任务，起到连接二者的桥梁作用，是供热系统的重要组成部分。3151/3051法兰式压力变送器应用_供热管网存设计实用
The central heating system consists of three parts: heat source, heat supply network and heat user. The purpose is to keep the indoor temperature suitable and keep the building in the balance of heat gain and heat loss. Among them, the heat supply network undertakes the task of timely transferring and distributing the heat from the heat source to each heat user, which plays a bridge role in connecting the two, and is an important part of the heating system.
压力变送器是许多工业设备中用以控制工业过程和压力变化的重要原件。压力变送器用于测量液体、气体或蒸汽的液位、密度和压力，然后将压力信号转变成4~20mADC信号输出。压力变送器是直接与被测介质相接触的现场仪表，常常在高温低温腐蚀振动冲击等环境中工作。在石油、化工、 电力、钢铁、轻工等行业的压力测量及现场控制中应用非常广泛。3151TG 系列智能压力变送器是公司技术中心新开发的一种高精度智能的现场压力参数的检测仪表，在过程控制系统中具有广泛的用途，可以来测量各种介质在液体，气体和蒸汽状态下的压力、液位等参数，并将被测的压力参数转换成4-20mA标准电信号输出，该输出可以作为指示、记录和各种控制、调节系统的输入信号。变送器同时采用HART协议传输数字信号，具有与手操器或上位机进行参数组态，在变送器上设置了就地零点和量程调整与LCD液晶显示参数组态按钮，便于现场调整零点和量程及设置所需的现场显示参数。国部分地区仍采用汽暖供热，比起水暖供热，汽暖供热的温度高，热量损失也较高，同时对于设备的要求也比水碾高。另外，供热管网的热媒和热源选择不够恰当、管理不够细致周全、供热管网设备老化等问题也会对供热管网节能效果产生影响。3151/3051法兰式压力变送器应用_供热管网存设计实用
Pressure transmitter is an important component in many industrial equipment to control industrial process and pressure change. The pressure transmitter is used to measure the liquid level, density and pressure of liquid, gas or steam, and then converts the pressure signal into 4 ~ 20mADC signal output. Pressure transmitter is a field instrument which directly contacts with the measured medium. It often works in the environment of high temperature, low temperature, corrosion, vibration and shock. It is widely used in pressure measurement and field control in petroleum, chemical, electric power, steel, light industry and other industries. 3151TG  Series intelligent pressure transmitter is a kind of high-precision intelligent on-site pressure parameter detection instrument newly developed by the company's technical center. It is widely used in process control system. It can measure the pressure, liquid level and other parameters of various media in liquid, gas and steam state, and convert the measured pressure parameters into 4-20mA standard electrical signal output. The output can be used as Input, control and recording of various indication signals. At the same time, the transmitter uses HART protocol to transmit digital signals, and has parameter configuration with manual controller or upper computer. Local zero point and range adjustment and LCD LCD parameter configuration buttons are set on the transmitter to facilitate on-site adjustment of zero point and range and setting of required field display parameters. Steam heating is still used in some parts of China. Compared with water heating, the temperature of steam heating is higher and the heat loss is higher. At the same time, the requirements for equipment are higher than that of water roller. In addition, the selection of heat medium and heat source is not appropriate, the management is not careful and comprehensive, and the aging of heating network equipment will also affect the energy-saving effect of heating network.
3151数显式压力变送器在3051普通型智能差压/压力变送器的基础上，通过对金属密封的差动电容压力传感器的δ室结构及压力引入结构的创新设计，在δ室的受压腔体内，嵌入高精度的温度传感器（在一定的温度范围内，测量精度可以达到±0.5℃），构成了一体化的压力，温度复合传感器，使该变送器具备了压力与传感器本体温度的精确测量功能，提高了变送器环境温度影响补充性能，由于该复合传感器与被测介质直接接触，所以同时可获得与传感器接触的介质温度信息，并实现用螺纹连接的方式与被测压力管道联接，方便安装。3151/3051法兰式压力变送器应用_供热管网存设计实用
On the basis of 3051 common intelligent differential pressure / pressure transmitter, 3151 digital display pressure transmitter adopts the innovative design of δ chamber structure and pressure introduction structure of metal sealed differential capacitance pressure sensor. In the pressure chamber of δ chamber, high-precision temperature sensor is embedded (the measurement accuracy can reach ± 0.5 ℃ within a certain temperature range), forming an integrated pressure The composite sensor of force and temperature enables the transmitter to accurately measure the pressure and the temperature of the sensor body, and improves the supplementary performance of the environmental temperature influence of the transmitter. Because the composite sensor is directly in contact with the measured medium, it can obtain the temperature information of the medium contacting with the sensor at the same time, and realize the connection with the measured pressure pipeline by means of thread connection, which is convenient and safe Install.
通过对变送器信号处理电路的改进设计，将变送器测得的压力信号与温度信号同时用于显示与传输，使变送器除了能够测量、显示及用数字信号传输所测的压力参数外，还能够显示及用数字信号传输传感器本体与被接触介质的温度参数，变送器配置的现场数字显示表可以直接显示测量压力值、输出模拟电流值、被测压力对应设定量程的百分比值、传感器本体与其接触介质的温度值。
Through the improved design of the signal processing circuit of the transmitter, the pressure signal and temperature signal measured by the transmitter are used for display and transmission at the same time, so that the transmitter can not only measure, display and transmit the measured pressure parameters by digital signal, but also display and transmit the temperature parameters of the sensor body and the medium to be contacted, and the field digital display of the transmitter configuration The meter can directly display the measured pressure value, the output analog current value, the percentage ratio of the set range corresponding to the measured pressure, and the temperature value of the sensor body and its contact medium.
3151法兰式液位变送器的通用智能型系列变送器，是工业自动化控制系统的压力检测变送单元。它测量工业过程流体压力，将其转化成4mA～20mADC信号输出。同时通过现场总线ＨＡＲＴ协议可进行远程参数设定、远程控制、自诊断等功能。人工智能化的管理能使你的自动化控制系统达到一种新的更高的层次。3151/3051法兰式压力变送器应用_供热管网存设计实用
3151 flange type liquid level transmitter is a general intelligent series transmitter, which is the pressure detection and transmission unit of industrial automation control system. It measures the industrial process fluid pressure and converts it into 4mA ~ 20mADC signal output. At the same time, through the field bus HART protocol, remote parameter setting, remote control, self diagnosis and other functions can be carried out. Artificial intelligence management can make your automation control system to a new higher level.

西安华变送器厂家工业自动变送器厂家及系统的研发、生产、销售和服务的高新技术企业，公司基于原西仪的技术优势研发并改进了电感式传感器和电路板的核心技术，拥有三十多年的仪变送器厂家生产及研发经验集。以及开始致力于HART协变送器厂家的探索和研发，是国内智变送器厂家及HART协议技术的开拓者，主营单法兰液位计,双法兰液位计,磁致伸缩液位计,卫生型压力变送器,高精度压力变送器，hart475手操器,静压式液位计,投入式液位计，一个将科技企业由外延式扩张进入内涵式扩张的助推器等
公司的主要产品有SMART斯玛特系列压力变送器、液位(界位变送器厂家、流量计、温度传感器和多参量变送器，产品计量资质，防爆资质齐全，整个生产系统通过ISO9000质量认证体系认证。研发的智能磁致伸缩液位变送器，双隔离静压式水准仪，风荷载变送器等产品获得多项发明，得到市场的众多好评。