陝西航(háng)天(tiān)泵閥科技(jì)******是以研發、生産(chǎn)、銷售及服(fú)務為一體的高新技(jì)術型(xíng)化工閥門(mén)生産企業(yè)，專業生産鍛造球閥、三通(tōng)球閥、清管(guǎn)閥、料漿閥、石油(yóu)化工(gōng)設(shè)備等産(chǎn)品，閥門(mén)品種齊(qí)全,在行業(yè)内率(lǜ)先通過iso9001,ce國際認(rèn)證等，并在各領(lǐng)域投入使(shǐ)用(yòng)，用戶對我**閥(fá)門産(chǎn)品高度認(rèn)可，咨(zī)詢熱線:400-****-***。

“水(shuǐ)錘效應(yīng)”（water hammer effect )

是指當(dāng)打(dǎ)開的閥(fá)門突然關(guān)閉，由于(yú)壓力水流的慣性，産生(shēng)水流(liú)沖擊波，并(bìng)産生(shēng)破壞(huài)作用(yòng)，這就(jiù)是水利學(xué)當中的(de)“水錘效(xiào)應”，也(yě)就是正水錘。

it refers to that when the open valve is suddenly closed, due to the inertia of pressure water flow, water flow shock wave is generated and destructive effect is generated. this is the "water hammer effect" in hydraulics, that is, positive water hammer.

相(xiàng)反，關閉的(de)閥門(mén)在(zài)突(tū)然打(dǎ)開後，也會産生(shēng)水錘(chuí)，叫負(fù)水錘(chuí)，也有(yǒu)一定的破(pò)壞力，但沒有前者大(dà)。

on the contrary, after the closed valve is suddenly opened, it will also produce a water hammer, called negative water hammer, which also has a certain destructive force, but it is not as big as the former.

水錘效應就(jiù)好像是(shì)追尾，最前面的(de)車(chē)突然停車了(le)，為後面的車(chē)未(wèi)及時發(fā)現(xiàn)，從而(ér)造成了(le)連環追(zhuī)尾事(shì)故(gù)，緻使最(zuì)前(qián)面(miàn)的車破壞(huài)嚴重。水錘(chuí)效(xiào)應(yīng)就是與(yǔ)這個類似。

the water hammer effect is like a rear end collision. the front car suddenly stopped because the rear car was not found in time, resulting in a series of rear end accidents and serious damage to the front car. the water hammer effect is similar to this.

通(tōng)常，在(zài)閥門(mén)接近(jìn)關閉時(shí)閉合元(yuán)件突然(rán)吸(xī)入閥(fá)座，稱(chēng)為溶(róng)缸閉(bì)鎖效(xiào)應。

溶(róng)缸(gāng)閉(bì)鎖效應是(shì)由低推力執(zhí)行機構(gòu)所造成的(de)，該執行機(jī)構沒有足(zú)夠(gòu)的推力(lì)以保持在接近(jìn)閥座的位置，導(dǎo)緻泵的(de)突(tū)然關閉或閥(fá)門的突(tū)然關(guān)閉，從(cóng)而産生水(shuǐ)錘效應。對(duì)于控制閥，在某些情(qíng)況下(xià)，快開(kāi)型流量(liàng)特性的(de)閥門(mén)也能導緻(zhì)水(shuǐ)錘效應(yīng)。

usually, when the valve is close to closing, the closing element suddenly sucks into the valve seat, which is called the cylinder locking effect.

the locking effect of the dissolving cylinder is caused by the low thrust actuator, which does not have enough thrust to keep close to the valve seat, resulting in the sudden closure of the pump or the sudden closure of the valve, resulting in water hammer effect. for control valves, in some cases, valves with fast opening flow characteristics can also cause water hammer effect.

雖然(rán)水錘産生(shēng)很大的噪(zào)音，但(dàn)真正(zhèng)的(de)損害是(shì)由機(jī)械失(shī)效造成的(de)。因為由動(dòng)能急劇地變化(huà)成靜态的(de)管線(xiàn)壓力(lì)，水(shuǐ)錘會沖破管(guǎn)線(xiàn)或損傷管子(zǐ)支架和損(sǔn)害管(guǎn)線接頭(tóu)。對于閥門，水(shuǐ)錘能(néng)夠通過閥芯産(chǎn)生嚴(yán)重振(zhèn)動，它可能導緻閥芯(xīn)、墊片(piàn)或(huò)填(tián)料(liào)的(de)失效。

although the water hammer makes a lot of noise, the real damage is caused by mechanical failure. because of the sharp change from kinetic energy to static pipeline pressure, water hammer will break through the pipeline or damage the pipe support and pipeline joint. for valves, water hammer can produce serious vibration through the valve core, which may lead to the failure of the valve core, gasket or packing.

對于(yú)閥(fá)門，防止(zhǐ)水錘的(de)辦法是(shì)防止(zhǐ)系統(tǒng)任何突(tū)然(rán)的壓(yā)力變(biàn)化。

for valve,the way toprevent water hammer is to prevent any sudden any pressure changes in the system.

包(bāo)括放(fàng)慢閥門本(běn)身的關閉速度(dù)或當閉合元件(jiàn)接近閥座(zuò)時提供較(jiào)大程度的(de)拉力和剛性。為(wéi)防止壓力波動(dòng)，閥門應(yīng)以(yǐ)均勻變動的速度進(jìn)行關閉。在某些(xiē)情況(kuàng)下(xià)，當使用(yòng)快開(kāi)特性，可(kě)以(yǐ)要求改變為等(děng)百分比(bǐ)特性。對(duì)于在接近閥座(zuò)時(shí)必須節(jiē)流的(de)控制(zhì)閥，應當使(shǐ)用輸(shū)出(chū)推力足(zú)夠大的(de)執行機(jī)構，如(rú)活(huó)塞式氣(qì)動(dòng)執行機構或(huò)液壓執行(háng)機構，或在手動旋轉(zhuǎn)的操作器(qì)的行程套(tào)管(guǎn)上(shàng)設置(zhì)特殊缺口，将減(jiǎn)少或防止溶缸(gāng)閉鎖(suǒ)效應。在管線系統(tǒng)上設置(zhì)某種類型的防波(bō)動(dòng)措(cuò)施也能(néng)減少水錘。可使(shǐ)用壓力洩(xiè)放閥(fá)或緩沖(chòng)桶(tǒng)完成(chéng)。此外氣體(tǐ)可被(bèi)注(zhù)入系統内，氣(qì)體的注入(rù)能減少流體的(de)密度并提供(gòng)某些壓(yā)縮性(xìng)以處(chù)理任何突然的波動(dòng)。

this includes slowing down the closing speed of the valve itself or providing a greater degree of tension and rigidity when the closing element approaches the valve seat. in order to prevent pressure fluctuation, the valve shall be closed at a uniform change speed. in some cases, when the quick open feature is used, it can be required to change to the equal percentage feature. for the control valve that must be throttled when approaching the valve seat, an actuator with sufficient output thrust, such as piston pneumatic actuator or hydraulic actuator, or a special notch shall be set on the stroke sleeve of the manually rotating operator, which will reduce or prevent the cylinder locking effect. setting some type of anti fluctuation measures on the pipeline system can also reduce water hammer. this can be done using a pressure relief valve or a buffer drum. in addition, gas can be injected into the system, which can reduce the density of the fluid and provide some compressibility to deal with any sudden fluctuations.

陝西航天(tiān)泵閥科技(jì)******堅持為客戶提供滿意的(de)産品(pǐn)和服務,如果您有相(xiàng)關産(chǎn)品需(xū)求或者技(jì)術疑(yí)問，請撥免費熱(rè)線，陝西航天泵(bèng)閥科技集團竭(jié)誠為您服務！

陝(shǎn)西航(háng)天泵(bèng)閥公衆(zhōng)号

航天(tiān)泵閥——40年(nián)行業經(jīng)驗沉(chén)澱閥門品(pǐn)牌，您身邊(biān)的閥門專(zhuān)家(jiā)!為您提(tí)供最優質的産(chǎn)品與最有(yǒu)效的(de)閥門問題解決方案，航天泵閥(fá)以“品質和産品”對待每個(gè)客戶(hù)，為您服務!免(miǎn)費(fèi)熱線(xiàn)：400-****-***、0312-*******（轉739）。