集中供熱系統由三大部分組成：熱源、熱網和熱用戶。其目的在于維持室內氣溫適合，使建筑物始終處于得熱與失熱的平衡狀態。其中熱網承擔著將熱源的熱量及時地輸送、分配給各個熱用戶的任務，起到連接二者的橋梁作用，是供熱系統的重要組成部分。3151/3051法蘭式壓力變送器應用_供熱管網存設計實用
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.
壓力變送器是許多工業設備中用以控制工業過程和壓力變化的重要原件。壓力變送器用于測量液體、氣體或蒸汽的液位、密度和壓力，然后將壓力信號轉變成4~20mADC信號輸出。壓力變送器是直接與被測介質相接觸的現場儀表，常常在高溫低溫腐蝕振動沖擊等環境中工作。在石油、化工、 電力、鋼鐵、輕工等行業的壓力測量及現場控制中應用非常廣泛。3151TG 系列智能壓力變送器是公司技術中心新開發的一種高精度智能的現場壓力參數的檢測儀表，在過程控制系統中具有廣泛的用途，可以來測量各種介質在液體，氣體和蒸汽狀態下的壓力、液位等參數，并將被測的壓力參數轉換成4-20mA標準電信號輸出，該輸出可以作為指示、記錄和各種控制、調節系統的輸入信號。變送器同時采用HART協議傳輸數字信號，具有與手操器或上位機進行參數組態，在變送器上設置了就地零點和量程調整與LCD液晶顯示參數組態按鈕，便于現場調整零點和量程及設置所需的現場顯示參數。國部分地區仍采用汽暖供熱，比起水暖供熱，汽暖供熱的溫度高，熱量損失也較高，同時對于設備的要求也比水碾高。另外，供熱管網的熱媒和熱源選擇不夠恰當、管理不夠細致周全、供熱管網設備老化等問題也會對供熱管網節能效果產生影響。3151/3051法蘭式壓力變送器應用_供熱管網存設計實用
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數顯式壓力變送器在3051普通型智能差壓/壓力變送器的基礎上，通過對金屬密封的差動電容壓力傳感器的δ室結構及壓力引入結構的創新設計，在δ室的受壓腔體內，嵌入高精度的溫度傳感器（在一定的溫度范圍內，測量精度可以達到±0.5℃），構成了一體化的壓力，溫度復合傳感器，使該變送器具備了壓力與傳感器本體溫度的精確測量功能，提高了變送器環境溫度影響補充性能，由于該復合傳感器與被測介質直接接觸，所以同時可獲得與傳感器接觸的介質溫度信息，并實現用螺紋連接的方式與被測壓力管道聯接，方便安裝。3151/3051法蘭式壓力變送器應用_供熱管網存設計實用
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.
通過對變送器信號處理電路的改進設計，將變送器測得的壓力信號與溫度信號同時用于顯示與傳輸，使變送器除了能夠測量、顯示及用數字信號傳輸所測的壓力參數外，還能夠顯示及用數字信號傳輸傳感器本體與被接觸介質的溫度參數，變送器配置的現場數字顯示表可以直接顯示測量壓力值、輸出模擬電流值、被測壓力對應設定量程的百分比值、傳感器本體與其接觸介質的溫度值。
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法蘭式液位變送器的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元。它測量工業過程流體壓力，將其轉化成4mA～20mADC信號輸出。同時通過現場總線ＨＡＲＴ協議可進行遠程參數設定、遠程控制、自診斷等功能。人工智能化的管理能使你的自動化控制系統達到一種新的更高的層次。3151/3051法蘭式壓力變送器應用_供熱管網存設計實用
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.

西安華變送器廠家工業自動變送器廠家及系統的研發、生產、銷售和服務的高新技術企業，公司基于原西儀的技術優勢研發并改進了電感式傳感器和電路板的核心技術，擁有三十多年的儀變送器廠家生產及研發經驗集。以及開始致力于HART協變送器廠家的探索和研發，是國內智變送器廠家及HART協議技術的開拓者，主營單法蘭液位計,雙法蘭液位計,磁致伸縮液位計,衛生型壓力變送器,高精度壓力變送器，hart475手操器,靜壓式液位計,投入式液位計，一個將科技企業由外延式擴張進入內涵式擴張的助推器等
公司的主要產品有SMART斯瑪特系列壓力變送器、液位(界位變送器廠家、流量計、溫度傳感器和多參量變送器，產品計量資質，防爆資質齊全，整個生產系統通過ISO9000質量認證體系認證。研發的智能磁致伸縮液位變送器，雙隔離靜壓式水準儀，風荷載變送器等產品獲得多項發明，得到市場的眾多好評。