
玻璃管液面计简介:
玻璃管液位计是一种直读式液位测量仪表,适用于工业生产过程中一般贮液设备中的液体位置的现场检测,其结构简单,测量准确,是传统的现场液位测量工具。HG5-227玻璃管液面计广泛应用在石油、化工、天然气等领域。
该液位计两端各装有一个针形阀,当玻璃管发生意外事故而破碎时,针形阀在容器压力作用下自动关闭,以防容器内介质继续外流。HG5-227系列玻璃管液位计可用来直接指示密封容器中的液位高度,具有结构简单,直观稳定,经久耐用等优点,但容器中的介质必须是与钢、钢纸及石墨压环不起腐蚀作用的。主要用于直接显示各种罐、塔、槽、箱等容器内介质液位的高度。
结构原理
仪表在上下阀上都装有M27×1.5或ZG3/4"的螺纹接头,通过法兰与容器连接构成连通器,透过玻璃板可直接读得容器内液位的高度。仪表在上下阀内都装有钢球,当玻璃板因意外事故破坏时,钢球在容器内压力作用下阻塞通道,这样容器便自动密封,可以防止容器内的液体继续外流。在仪表的阀端有阻塞孔螺钉,可供取样时用,或在检修时,放出仪表中的剩余液体时用。
玻璃管液面计
玻璃管液面计是一种直接、清晰的现场液位指示装置,其工作原理基于连通器原理。它通过法兰、螺纹或焊接等方式与设备容器连接,利用透明的玻璃管直接显示容器内的介质液位高度。
该液面计结构简单,通常由玻璃管、上下阀门(针型阀)、填料压盖及密封组件构成。上下阀门不仅控制通断,还具备自动封闭功能——当玻璃管意外破裂时,阀内的钢球会在介质压力作用下自动密封阀口,防止介质大量泄漏,起到安全保护作用。
其优点是能够为操作人员提供直观、真实、稳定的液位指示,无需外部电源,经济性好且维护方便。但因其玻璃材质特性,不耐高温高压骤变和机械冲击,通常适用于工作压力低于_____MPa,工作温度低于_____℃的场合。
玻璃管液面计主要特点:
直观清晰: 可直接观察到容器内介质的液位、界面及颜色。
结构简单: 造价低廉,安装、维修和更换方便。
安全稳定: 配套的防护阀门具有自动密封功能,安全性高。
无需能源: 属于纯机械式仪表,无需电力或气源即可工作。
经济实用: 性价比高,是基础液位指示的方案之一。
玻璃管液面计典型应用:
广泛应用于锅炉、压力容器、储罐、化工设备、水处理系统、食品饮料设备等对液位可视化要求高,但压力温度不极高的场合,用于测量水、油、弱腐蚀性液体及透明或半透明介质。
Glass Tube Level Gauge Product Overview
A Glass Tube Level Gauge is a direct clear local level indication device that operates based on the communicating vessel principle. It is connected to the equipment vessel via flanges, threads, welding, uses a transparent glass tube to directly display the height of the medium inside the vessel.
Its structure is simple, typically consisting of a glass tube, upper lower valves (needle valves), gland followers, sealing components. The valves only control the flow but also feature an auto-shutoff function — in the event of accidental glass tube breakage, a ball inside the valve is pushed by the media pressure to automatically seal the orifice, preventing major leakage ensuring safety.
Its greatest advantage is providing operators with an intuitive, true, reliable level indication. It requires no external power source, is economical, easy to maintain. However, due to the nature of glass, it is resistant to rapid temperature/pressure changes mechanical impact. It is generally suitable for applications with working pressures below _____ MPa temperatures below _____ °C.
Key Features:
Clear Visibility: Allows direct observation of the liquid level, interface, color of the medium inside the vessel.
Simple Construction: Low cost, easy to install, maintain, replace.
Safe Reliable: The protective valves with auto-sealing function ensure high safety.
Energy-Free: A purely mechanical instrument that operates without electricity air supply.
Economical Practical: Cost-effective, making it a primary choice for basic level indication.
Typical Applications:
Widely used in boilers, pressure vessels, storage tanks, chemical equipment, water treatment systems, food & beverage equipment visual level monitoring is required under moderate pressure temperature conditions. It is suitable for measuring water, oil, weakly corrosive liquids, transparent semi-transparent media.
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