德國奧萊斯OLES進口高壓旁路調節閥
【進口高壓旁路調節閥】詳細說明：
高壓旁路調節閥是一種結構特殊的高壓差調節閥，該調節閥兼有啟動調節閥，減壓旁路閥和安全閥的作用。可實現快速自動跟蹤超壓保護，省去鍋爐安全閥。
德國奧萊斯OLES進口高壓旁路調節閥
【進口高壓旁路調節閥】詳細說明：
高壓旁路調節閥是一種結構特殊的高壓差調節閥，該調節閥兼有啟動調節閥，減壓旁路閥和安全閥的作用。可實現快速自動跟蹤超壓保護，省去鍋爐安全閥。該閥能在6秒內實現快速啟動，電動執行機構的控制系統通過調節蒸汽壓力以適應機組不同工況的參數啟停和運行；機組甩負荷后鍋爐可以不立即熄火，等事故排除后，幾分鐘內即可重新投入運行，既減少鍋爐的啟停次數，又減少了對汽輪機的熱沖擊。減溫水的調節與高壓旁路快速聯動，能大幅降溫降壓，減少電廠龐大的減溫減壓系統及設備，所以該閥是大容量單元再熱機組旁路系統的重要調節閥之一。
High-pressure bypass control valve is a special high-pressure differential control valve, which has the functions of starting control valve, relief bypass valve and safety valve. It can realize fast automatic tracking overpressure protection and save boiler safety valve. The valve can start quickly in 6 seconds, and the control system of the electric actuator can adjust the steam pressure to adapt to the start-up and shut-down of the parameters under different working conditions of the unit; the boiler can not immediately shut down after the load rejection of the unit, and can be put into operation again in a few minutes after the accident has been eliminated, thus reducing the number of start-up and shut-down of the boiler as well as reducing the number of start-up and shut-down. Less thermal shock on steam turbines. The rapid linkage between the regulation of temperature-reducing water and high-pressure bypass can greatly reduce temperature and pressure, and reduce the huge system and equipment of temperature-reducing and pressure-reducing in power plants. Therefore, the valve is one of the important regulating valves in the bypass system of large-capacity unit reheater units.
【進口高壓旁路調節閥】結構說明：
高壓旁路調節閥工作條件很差，一般都在節流狀態下運行，溫差應力很大，節流的汽蝕現象嚴重，閥門極易損壞。由此可見，設計制造出性能*、耐汽蝕、強度高、噪聲低、結構簡單可靠的高壓旁路閥非常重要。針對上述工況要求，對高壓旁路調節閥結構設計和材料選擇等方面進行了優化，設計出新型的高壓旁路閥。其特點是節流元件采用了多孔套筒結構，與閥芯構成節流元件；在閥芯后布置降壓孔板；蒸汽出口設計成縮放口；減溫水由外部引入閥體后，通過多孔管噴出，與高溫蒸汽直接混合來降低蒸汽溫度；采用這些結構后，使運行中汽蝕量大為減輕，延長了高壓旁路閥的使用壽命；閥座設計成可拆卸結構，拆裝方便，便于檢修；閥座密封面采用斜面結構，設計合理，使調整門密封面的密封達到很好效果。
【進口高壓旁路調節閥】特點：
蒸汽經過4級節流，噪音低。蒸汽先通過套筒和閥座，壓力降低了一部分。節流罩下端的噴嘴向上噴出高速冷卻水，冷卻水在節流罩中心被高壓蒸汽霧化和混合的過程中，進行充分的熱交換，從而使高溫蒸汽再節流罩內完成降溫過程，然后通過節流罩，再通過兩個節流孔板，把蒸汽壓力降低到額定要求，由于蒸汽的減壓減溫都在同一閥體內完成，故系統不另設專門的減溫器。
b.高壓旁路控制系統能使這臺閥在6秒內快速啟動，正常工況采用慢速調節。
c.上閥蓋采用自密封結構，可防止蒸汽外溢。
