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    進口蒸汽調節閥

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    1. 詳細信息
    進口蒸汽調節閥就是以壓縮空氣為動力源,以氣缸為執行器,并借助于電氣閥門定位器、轉換器、電磁閥、保位閥等附件去驅動閥門,實現開關量或比例式調節,接收工業自動化控制系統的控制信號來完成調節管道介質的流量、壓力、溫度等各種工藝參數。德國漢克(HANK)蒸汽調節閥的特點就是控制簡單,反應快速,且本質安全,不需另外再采取防爆措施。
    選型原則
    調節閥的閥體類型選擇
    調節閥的閥體種類很多,常用的閥體種類有直通單座、直通雙座、角形、隔膜、小流量、三通、偏心旋轉、蝶形、套筒式、球形等。在具體選擇時,可做如下考慮:
    1、閥芯形狀結構主要根據所選擇的流量特性和不平衡力等因素考慮。
    2、耐磨損性當流體介質是含有高濃度磨損性顆粒的懸浮液時,閥的內部材料要堅硬。
    3、耐腐蝕性由于介質具有腐蝕性,盡量選擇結構簡單閥門。
    4、介質的溫度、壓力當介質的溫度、壓力高且變化大時,應選用閥芯和閥座的材料受溫度、壓力變化小的閥門。
    5、防止閃蒸和空化閃蒸和空化只產生在液體介質。在實際生產過程中,閃蒸和空化會形成振動和噪聲,縮短閥門的使用壽命,因此在選擇閥門時應防止閥門產生閃蒸和空化。
    調節閥執行機構的選擇
    1、為了使調節閥正常工作,配用的執行機構要能產生足夠的輸出力來保證高度密封和閥門的開啟。對于雙作用的氣動、液動、電動執行機構,一般都沒有復位彈簧。作用力的大小與它的運行方向無關,因此,選擇執行機構的關鍵在于弄清最大的輸出力和電機的轉動力矩。
    對于單作用的氣動執行機構,輸出力與閥門的開度有關,調節閥上的出現的力也將影響運動特性,因此要求在整個調節閥的開度范圍建立力平衡。
    2、執行機構類型的確定對執行機構輸出力確定后,根據工藝使用環境要求,選擇相應的執行機構。對于現場有防爆要求時,應選用氣動執行機構。從節能方面考慮,應盡量選用電動執行機構。若調節精度高,可選擇液動執行機構。如發電廠透明機的速度調節、煉油廠的催化裝置反應器的溫度調節控制等。
    調節閥的作用方式選擇
    調節閥的作用方式只是在選用氣動執行機構時才有,其作用方式通過執行機構正反作用和閥門的正反作用組合形成。組合形式有4種即正正(氣關型)、正反(氣開型)、反正(氣開型)、反反(氣關型),通過這四種組合形成的調節閥作用方式有氣開和氣關兩種。
    對于調節閥作用方式的選擇,主要從三方面考慮a)工藝生產安全b)介質的特性c)保證產品質量,經濟損失最小。
    Steam control valve is to compressed air as the power source to the cylinder as the actuator, and by means of electrical valve positioner, converter, solenoid valve, security valve and other accessories to drive the valve, to achieve the amount of switch or proportional adjustment, Automatic control system control signal to complete the regulation of pipeline medium flow, pressure, temperature and other process parameters. Germany Hank (HANK) steam control valve is characterized by simple control, rapid response, and intrinsically safe, no need to take another explosion-proof measures.
    Selection principle
    The valve type of the control valve is selected
    Valve valve body types are many, commonly used valve body has a single seat, through the two-seat, angle, diaphragm, small flow, three links, eccentric rotation, butterfly, sleeve, spherical and so on. In the specific choice, do the following considerations:
    1, spool shape structure is mainly based on the selected flow characteristics and imbalance force and other factors to consider.
    2, wear resistance When the fluid medium is a high concentration of abrasive particles containing the suspension, the valve internal material to be hard.
    3, corrosion resistance As the media is corrosive, try to choose a simple structure of the valve.
    4, the temperature of the medium, the pressure when the medium temperature, high pressure and change the big, should be used spool and seat material by the temperature, pressure changes small valve.
    5, to prevent flash and cavitation flash and cavitation only produce in the liquid medium. In the actual production process, flash and cavitation will form vibration and noise, shorten the life of the valve, so the choice of the valve should prevent the valve flash and cavitation.
    Control valve actuator selection
    1, in order to make the normal operation of the control valve, with the implementation of the actuator to produce enough output to ensure a high degree of sealing and valve opening. For the double acting pneumatic, hydraulic, electric actuators, generally do not have a return spring. The magnitude of the force is independent of its direction of operation, so the key to selecting the actuator is to figure out the maximum output force and the torque of the motor.
    For a single acting pneumatic actuator, the output force is related to the opening of the valve, and the force on the control valve will also affect the movement characteristics. Therefore, it is required to establish a force balance in the opening range of the entire control valve.
    2, the implementation of the type of implementation of the actuator to determine the output, according to the use of environmental requirements, select the appropriate implementing agencies. For the explosion requirements at the scene, should use pneumatic actuators. From the energy-saving point of view, should try to use electric actuators. If the adjustment of high precision, you can choose the hydraulic actuator. Such as the speed adjustment of the power plant transparent machine, the temperature control control of the reactor of the refinery.
    The choice of the way the valve action
    The action of the control valve is only in the selection of pneumatic actuators only when the role of the way through the positive and negative role of the actuator and the combination of positive and negative valve formed. There are four kinds of combinations in the form of positive (gas type), positive and negative (gas open type), anyway (air open type), anti-anti (gas off type), through the formation of these four combinations of valve action Open and air off two.

    For the choice of the way the valve action, mainly from three aspects to consider a) process production safety b) the characteristics of the media c) to ensure product quality, economic losses minimum.

    德國漢克(HANK)

    德國漢克(HANK)進口閥門成立于1852年創建于門興格拉德巴赫(Monchengladbach)是位于德國北萊茵-威斯特法倫州首府杜塞爾多夫市以西的一座城市。于19世紀50年代初德國經濟快速發展,由于德國能源短缺,政府在節能方面加大力度,因此HANK(Trouble Less valve沒有故障的閥門)公司成立。漢克閥門是以生產高品質、先進的閥門、測量及控制系統而享譽全球的跨國性生產企業,在全球幾十個國家擁有子公司及分支機構,公司產品涉及用途:石油、化工、電力、冶金、制藥、食品、水處理、市政給排水、天然氣、造紙、電子工業、樓宇、機械設備配套等領域。
    GERMANY HANK VALVE LIMITED is founded on 1852 in Monchengladbach,which is located at one city in North Rhine in Germany, which is the west of Nordrhein-Westfalen. At the beginning of 1850s, as the rapid development of economic and the shortages of energy in Germany , the government had been in saving energy aspect. On this occasion, HANK Valve (Trouble Less Valve) was established.Hank valve is the world-famous transnational production enterprise,which produces high quality and advanced valve, measurement and control system, and which has its divisions and branches in dozens of countries in the global. The company products user involves the petroleum, the chemical industry, the electric power, the metallurgy, the drugs manufacture, food, the water treatment, the municipal administration to give draining water, the natural gas, the papermaking, the electronics industry, the building, the mechanical device necessary ect..
    德國漢克(HANK)閥門的價值理念概括為:責任-遠見-創新。我們因自身的責任感、遠見及專注于創造前所未有的解決方案和理念,而成為全球領先的閥門制造商。
    The conclusion of the valve concept in German Hank valve is resposibility,foresight,innovation. For ourselves resposibility, foresight and focusing on creating unprecendented solution and concept,our company has become the lead of valve manufacturer in the global.

    標簽:   蒸汽調節閥 進口蒸汽調節閥
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