川消濕式報警閥的工作原理及常見故障
來源：http://www.xintli.net/ 日期：2023-06-26
川消濕式報警閥工作原理：在火警時，著火處噴淋頭被火烤爆（一般場所用68度噴淋頭），濕式報警閥上端由于泄水，壓力變小，這時濕式報警閥下端供水側(cè)壓力超過上端系統(tǒng)側(cè)壓力，噴淋穩(wěn)壓泵工作，頂開濕式報警閥閥門，濕式報警閥下端的水流過報警閥到達(dá)噴淋管網(wǎng)。一部分水，流向延遲器，裝滿延遲器后，水繼續(xù)流向水力警鈴報警，同時壓力開關(guān)報警，啟動噴淋泵。
Working principle of Chuanxiao wet alarm valve: In case of a fire, the sprinkler head at the fire location is burnt out by the fire (usually using a 68 degree sprinkler head). The pressure at the upper end of the wet alarm valve decreases due to water leakage. At this time, the pressure on the water supply side at the lower end of the wet alarm valve exceeds the pressure on the upper system side. The spray stabilizing pump operates and opens the wet alarm valve. The water flow at the lower end of the wet alarm valve passes through the alarm valve and reaches the spray pipe network. A portion of the water flows to the delay device. After filling the delay device, the water continues to flow to the hydraulic alarm bell, and at the same time, the pressure switch alarms to start the spray pump.
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閥瓣關(guān)閉不嚴(yán)故障現(xiàn)象：延遲器排水口持續(xù)漏水；嚴(yán)重時會發(fā)生斷續(xù)報警；報警閥異常靈敏或靈敏度降低。
Fault phenomenon of valve disc not tightly closed: continuous water leakage at the drainage outlet of the delay device; Intermittent alarms may occur in severe cases; Abnormal sensitivity or reduced sensitivity of the alarm valve.
處理方法：將報警閥的閥蓋打開，清楚座圈及閥瓣墊面上的沉積物；更換墊片。
Processing method: Open the valve cover of the alarm valve and clear the deposits on the seat ring and valve disc pad surface; Replace the gasket.
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延遲器故障故障現(xiàn)象：在進(jìn)行末端試水裝置試驗和警鈴試驗時報警閥不能在5-90s時間內(nèi)發(fā)出報警信號；試驗完畢后。延遲器排水時間超過5min。
Delayer malfunction phenomenon: During the end water testing device test and alarm bell test, the alarm valve cannot send an alarm signal within 5-90 seconds; After the experiment is completed. The drainage time of the delay device exceeds 5 minutes.
處理方法：檢查延遲器進(jìn)水口、出水口、排水口的位置和接口尺寸是否符合產(chǎn)品要求，排水口附件是否齊備，否則應(yīng)重新裝配；檢查排水口是否堵塞；延遲器排水管上下應(yīng)設(shè)控制閥。
Processing method: Check whether the positions and interface dimensions of the water inlet, outlet, and drainage outlet of the delay device meet the product requirements, and whether the drainage outlet accessories are complete. Otherwise, they should be reassembled; Check if the drainage outlet is blocked; Control valves should be installed above and below the drainage pipes of the delay device.
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報警閥壓力表讀數(shù)異常故障現(xiàn)象：壓力表值異常處理方法：選擇合適的壓力表，保證壓力表示值在壓力表的1/3-2/3的量程區(qū)間之內(nèi)，并應(yīng)定期校檢壓力表；穩(wěn)壓裝置的運行壓力應(yīng)符合消防要求；穩(wěn)壓水源均應(yīng)從報警閥水源管道上引入，使水源能通過報警閥。
Alarm valve pressure gauge reading abnormal fault phenomenon: Pressure gauge value abnormal handling method: Select a suitable pressure gauge, ensure that the pressure indication value is within the range of 1/3-2/3 of the pressure gauge, and regularly calibrate the pressure gauge; The operating pressure of the pressure stabilizing device should meet the fire protection requirements; Stable water sources should be introduced from the alarm valve water source pipeline to allow the water source to pass through the alarm valve.
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主排水閥故障故障現(xiàn)象：主排水閥的故障主要是閥的滲漏或損壞。如排水管滴漏不止，排水閥銹蝕卡死，難以操作。處理方法：水中雜物較多時，在報警閥的水源入口應(yīng)設(shè)過濾器；主排水閥宜采用閥座、閥桿及閥桿螺母為銅或不銹鋼材質(zhì)的閥門；常檢查，定期操作試驗。
Main drain valve malfunction phenomenon: The main drain valve malfunction is mainly due to valve leakage or damage. If the drainage pipe leaks continuously, the drainage valve rusts and gets stuck, making it difficult to operate. Treatment method: When there are many impurities in the water, a filter should be installed at the water source inlet of the alarm valve; The main drainage valve should be made of copper or stainless steel with the valve seat, valve stem, and valve stem nut; Regularly inspect and conduct regular operational tests.
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壓力開關(guān)故障故障現(xiàn)象：壓力開關(guān)誤報警或不報警。處理方法：檢查壓力開關(guān)的小動作壓力是否符合要求；檢查壓力開關(guān)觸點的接觸電阻和絕緣電阻是否符合要求；檢查電氣線路和信號模塊是否正常。
Pressure switch malfunction phenomenon: Pressure switch false alarm or no alarm. Processing method: Check whether the small action pressure of the pressure switch meets the requirements; Check whether the contact resistance and insulation resistance of the pressure switch contacts meet the requirements; Check whether the electrical circuit and signal module are normal.
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報警閥信號槽故障故障現(xiàn)象：報警水流量減小，水力警鈴響度不夠，甚不響。處理方法：改善水源的設(shè)置，增設(shè)符合要求的水源過濾器。發(fā)現(xiàn)報警水流減小時應(yīng)及時清理信號槽。
Fault phenomenon of alarm valve signal slot: The alarm water flow rate decreases, and the hydraulic alarm bell is not loud enough, or even does not sound. Treatment method: Improve the setting of water sources and add water source filters that meet the requirements. If the alarm water flow decreases, the signal slot should be cleaned in a timely manner.
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水力警鈴故障故障現(xiàn)象：水力警鈴在報警閥動作后不報警；水力警鈴在報警閥動作后斷續(xù)報警或警鈴響度不夠。處理方法：當(dāng)報警試驗時，發(fā)現(xiàn)葉輪盒無水流出或水流甚少，一般是噴嘴堵塞，應(yīng)檢查過濾器的網(wǎng)孔尺寸；當(dāng)報警試驗時，葉輪盒排水正常，但無聲響，應(yīng)檢查進(jìn)水管與排水管是否反向（水力警鈴如被拆裝過，容易出現(xiàn)反向，應(yīng)重新按要求組裝）；檢查鈴錘是否脫落。
Fault phenomenon of hydraulic alarm bell: The hydraulic alarm bell does not alarm after the alarm valve acts; The hydraulic alarm bell intermittently sounds or the sound of the alarm bell is insufficient after the alarm valve is activated. Handling method: When an alarm test is conducted, it is found that there is no water flowing out of the impeller box or there is little water flow, usually due to nozzle blockage. The mesh size of the filter should be checked; When conducting an alarm test, the impeller box drains normally, but there is no sound. It is necessary to check whether the inlet and outlet pipes are reversed (if the hydraulic alarm bell has been disassembled, it is easy to reverse and should be reassembled as required); Check if the bell hammer has fallen off.
川消濕式報警閥的工作原理及常見故障相關(guān)事項就講解到這里了，希望能夠給您好的幫助，更多事項就來我們網(wǎng)站http://www.xintli.net咨詢！
That's all for explaining the working principle and common faults of the Chuanxiao wet alarm valve. We hope to provide you with good help. For more information, please come to our website http://www.xintli.net consulting service
