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閥門常見的問題和解決方法

來源:http://yantaidengju.com/ 日期:2025-04-15 發布人:創始人

閥門在使用過程中可能會出現各種問題,以下是一些常見的問題及解決方法:

Valves may encounter various problems during use. Here are some common issues and their solutions:

閥門泄漏

valve leakage

內漏

internal leakage

原因:密封面磨損、腐蝕或有雜質顆粒附著,導致密封不嚴;閥門關閉不到位。

Reason: The sealing surface is worn, corroded, or has impurities particles attached, resulting in poor sealing; The valve is not closed properly.

解決方法:修復或更換磨損、腐蝕的密封面;清理密封面上的雜質顆粒;檢查閥門的驅動裝置和傳動機構,確保閥門能夠完全關閉。

Solution: Repair or replace worn or corroded sealing surfaces; Clean the impurity particles on the sealing surface; Check the driving device and transmission mechanism of the valve to ensure that it can be fully closed.

外漏

leak

原因:閥門填料函處密封不嚴,填料老化、磨損或壓緊力不足;閥門法蘭連接處墊片損壞、螺栓松動。

Reason: The sealing at the valve packing box is not tight, and the packing is aging, worn, or has insufficient clamping force; The gasket at the valve flange connection is damaged and the bolt is loose.

解決方法:更換老化、磨損的填料,并適當增加填料的壓緊力;更換損壞的墊片,均勻擰緊法蘭連接螺栓。

Solution: Replace aged and worn fillers, and increase the clamping force of the fillers appropriately; Replace the damaged gasket and tighten the flange connection bolts evenly.

閥門卡澀

Valve jamming

原因:閥門長期未操作,閥芯與閥座之間出現銹死或粘連;閥門內有雜質、異物堵塞,影響閥芯的移動;潤滑不足,傳動部件磨損。

Reason: The valve has not been operated for a long time, resulting in rust or adhesion between the valve core and seat; There are impurities and foreign objects blocking the valve, which affects the movement of the valve core; Insufficient lubrication and wear of transmission components.

解決方法:對銹死或粘連的閥門進行除銹、潤滑處理,必要時拆卸閥門進行清洗和修復;安裝過濾器,防止雜質進入閥門,清理閥門內的異物;定期對閥門的傳動部件進行潤滑,更換磨損的部件。

Solution: Remove rust and lubricate rusted or adhered valves, and if necessary, disassemble the valves for cleaning and repair; Install filters to prevent impurities from entering the valve and clean foreign objects inside the valve; Regularly lubricate the transmission components of the valve and replace worn parts.

截止閥02

閥門開啟困難

Difficulty in opening the valve

原因:閥門開啟力矩過大,可能是由于閥門選型不當,實際工作壓力或介質粘度等超出閥門的設計范圍;閥門的驅動裝置故障,如電動執行器電機損壞、氣動執行器氣源不足等。

Reason: The valve opening torque is too large, which may be due to improper valve selection, actual working pressure or medium viscosity exceeding the design range of the valve; Valve drive device malfunction, such as damaged electric actuator motor, insufficient pneumatic actuator air source, etc.

解決方法:重新評估閥門的選型,選擇合適規格的閥門;檢查驅動裝置的電源、氣源等,修復或更換損壞的驅動裝置部件。

Solution: Re evaluate the selection of valves and choose valves with appropriate specifications; Check the power supply, air source, etc. of the drive device, repair or replace damaged drive device components.

閥門關閉不嚴

The valve is not tightly closed

原因:除了密封面問題外,還可能是閥門的閥桿彎曲、變形,導致閥芯無法準確就位;介質壓力波動或反向壓力過大,影響閥門的關閉。

Reason: In addition to sealing surface issues, it is also possible that the valve stem is bent or deformed, causing the valve core to be unable to be accurately positioned; Medium pressure fluctuations or excessive reverse pressure can affect valve closure.

解決方法:校直或更換彎曲、變形的閥桿;安裝止回閥等裝置,防止介質反向流動,穩定介質壓力。

Solution: Straighten or replace bent or deformed valve stems; Install check valves and other devices to prevent reverse flow of the medium and stabilize the medium pressure.

閥門振動和噪聲

Valve vibration and noise

原因:閥門在開啟或關閉過程中,由于介質流速變化、壓力波動等原因引起振動;閥門的固定不牢固,或者與管道的連接不合理,導致振動傳遞。

Reason: During the process of opening or closing the valve, vibration may occur due to changes in medium flow rate, pressure fluctuations, and other factors; The fixing of the valve is not firm, or the connection with the pipeline is unreasonable, resulting in vibration transmission.

解決方法:優化閥門的安裝位置和管道布局,減少介質流速和壓力的突變;增加閥門的固定支撐,確保閥門與管道連接牢固,必要時采用減振降噪措施,如安裝減振墊、消聲器等。

Solution: Optimize the installation position and pipeline layout of valves to reduce sudden changes in medium flow rate and pressure; Increase the fixed support of the valve to ensure a firm connection between the valve and the pipeline. If necessary, adopt vibration and noise reduction measures, such as installing vibration pads, mufflers, etc.

不同類型和用途的閥門可能會有一些特殊的問題和解決方法,在實際應用中,需要根據具體情況進行分析和處理。同時,定期對閥門進行維護保養,可以有效減少閥門故障的發生,延長閥門的使用壽命。

Valves of different types and purposes may have some special problems and solutions, which need to be analyzed and handled according to specific situations in practical applications. At the same time, regular maintenance of valves can effectively reduce the occurrence of valve failures and extend the service life of valves.

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