泄壓閥和減壓閥的7大區(qū)別（中英文）
泄壓閥和減壓閥用于不同的應(yīng)用，以控制和調(diào)節(jié)壓力。
? 功能：泄壓閥用于保護系統(tǒng)或設(shè)備免受過大壓力的累積，而減壓閥則用于控制和降低流經(jīng)系統(tǒng)的流體壓力。
? 工作原理：泄壓閥常閉，當(dāng)壓力超過設(shè)定限值時打開；減壓閥在壓力達到所需設(shè)定值時打開。
? 壓力控制：泄壓閥設(shè)定為特定的壓力限值，并完全打開以釋放過大的壓力，直到壓力降至設(shè)定限值以下；減壓閥設(shè)定為所需的較低壓力，并調(diào)節(jié)其開度以保持恒定的下游壓力。
? 流動方向：泄壓閥允許流體逸出并釋放系統(tǒng)壓力，而減壓閥限制流量并降低下游系統(tǒng)的壓力。
? 位置：泄壓閥安裝在系統(tǒng)或設(shè)備的出口或排放側(cè)，而減壓閥通常安裝在系統(tǒng)的入口或上游側(cè)，用于需要減壓的地方。
? 應(yīng)用：泄壓閥用于蒸汽鍋爐、壓力容器和管道，而減壓閥用于配水系統(tǒng)、灌溉系統(tǒng)和工業(yè)過程。
? 設(shè)定點調(diào)節(jié)：泄壓閥在運行過程中無法調(diào)節(jié)設(shè)定壓力，而減壓閥則允許通過更改設(shè)定點或使用外部控制來調(diào)節(jié)下游壓力。
Pressure Relief Valves and Pressure Reducing Valves are used in different applications to control and regulate pressures.
? Function: Pressure Relief Valves are designed to protect a system or equipment from excessive pressures buildup while pressure reducing ones are used to control and reduce the pressures of a fluid flowing through a system.
? Operation: The Relief ones operate in a normally closed position and open when the pressures exceeds the set limit while the other one operates when the pressures reaches the desired set point.
? Pressure Control: The Relief one is set to a specific pressures limit and opens fully to relieve excess pressure until the pressures drops below the set limit while the other one is set to a desired lower pressures and adjusts its opening to maintain a constant downstream pressure.
? The direction of Flow: The Relief one allows the fluid to escape and relieve pressures in the system while the other one restricts the flow and reduces the pressures in the downstream system.
? Location: The Relief one is installed at the outlet or discharge side of a system or equipment while the other one is generally installed at the inlet or upstream side of a system, where pressures reduction is required.
? Applications: The Relief one is used in steam boilers, pressure vessels, and pipelines while the other one is used in water distribution systems, irrigation systems, and industrial processes.
? Set Point Adjustment: In the Relief one set pressures cannot be adjusted during operation while the other one allows adjustment of the downstream pressures by changing the set point or using external controls.
減壓閥和泄壓閥的用途
Purpose of pressure reducing valve and pressure relief valves
用途 | 減壓閥 | 泄壓閥 |
工作 | 控制并將流體壓力降低至所需的較低壓力 | 當(dāng)壓力超過設(shè)定限值時，泄壓閥打開，排出多余的液體，從而降低壓力，保護系統(tǒng)或設(shè)備免受過大壓力的影響。 |
應(yīng)用 | 供水系統(tǒng)、灌溉系統(tǒng)、工業(yè)流程 | 蒸汽鍋爐、壓力容器、管道 |
重要性 | 通過維持所需的壓力水平，確保下游設(shè)備或系統(tǒng)安全高效運行 | 保護設(shè)備和系統(tǒng)免受過大壓力造成的潛在損壞或災(zāi)難性故障。 |
Purpose | Pressure reducing valve | Pressure relief valve |
Working | Controls and reduces fluid pressure to a desired lower pressure | Protects a system or equipment from excessive pressures buildup by opening when the pressures exceeds a set limit, allowing the excess fluid to escape and reducing the pressures |
Applications | Water distribution systems, irrigation systems, industrial processes | Steam boilers, pressures vessels, pipelines |
Importance | Ensures safe and efficient operation of downstream equipment or systems by maintaining desired pressure levels | Protects equipment and systems from potential damage or catastrophic failure due to excessive pressure |
減壓閥和泄壓閥的功能
Function of pressure reducing valve and pressure relief valves
減壓閥 | 泄壓閥 |
維持下游壓力 | 過壓保護 |
允許壓力調(diào)節(jié) | 防止系統(tǒng)損壞 |
保護下游設(shè)備 | 緊急泄壓 |
確保系統(tǒng)效率 | 安全措施 |
Pressure reducing valve | Pressure relief valve |
Maintains downstream pressure | Overpressure protection |
Allows pressure adjustment | Prevents system damage |
Protects downstream equipment | Emergency pressure relief |
Ensures system efficiency | Safety measure |
減壓閥和泄壓閥的局限性是什么？
What are the limitations of pressure reducing valve and pressure relief valves?
減壓閥 | 泄壓閥 |
容量有限 | 精度有限 |
依賴上游壓力 | 運行過程中壓力累積 |
壓力波動大 | 噪音和振動 |
維護要求高 | 取決于系統(tǒng)設(shè)計 |
Pressure reducing valve | Pressure relief valve |
Limited capacity | Limited accuracy |
Dependence on upstream pressure | Pressure buildup during operation |
Pressure fluctuations | Noise and vibration |
High maintenance requirements | Dependence on system design |
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