A49Y-PW5414V DN100主安全閥
Description:
主要零件材料 Main part material | ||
主安全閥 Main safety valve | ||
件號(hào) Part number | 零件名稱 Name of parts | 材料 Material |
1 | 下閥體 Nether Body | 鉻鉬釩鋼CrMoV steel |
2 | 閥 瓣Disc | 鉻鉬釩鋼CrMoV steel |
3 | 閥 座Seat | 鉻鉬釩鋼CrMoV steel |
4 | Upper Body | 鉻鉬釩鋼CrMoV steel |
5 | 閥 桿Stem | 鉻鉬釩鋼CrMoV steel |
6 | 活 塞Piston | 不銹鋼Stainless steel |
7 | 閥 蓋Bonnet | 鉻鉬釩鋼CrMoV steel |
重量(kg) Weight | 403 |
This device is used for inlet and outlet pipe of reheater to avoid mediun pressure exceeding the allowable value to ensure the reheater shall run safely.
1.The impulse safety device is as shown in the figure, mainly consisted of impulse safety valve, the main safety valve, stop valve and throttle valve. Impulse safety valve is a kind of spring safety valve. It is mainly consisted of body , bonnet, disc and other parts.The impulse safety valve can be adjusted by using the spring to regulate the pressure.
The impulse safety valve contains an electromagnet to open and another to close the valve. The actions of the mechanism and the electric appliance are separate and will not affect each other .
2.The main safety valve is as shown in the figure. With astructure of single exhaust and both ends of flange connection, it is mainly consisted of body, bonnet, piston chamber, disc, stem and other parts.
3.Both the sealed surfaces of disc and seat of the impulse safety valve are made of hard alloy of cobalt by overlaying welding Both the seat and the disc of the main safety valve are made of hard alloy of cobalt by plasma spray welding.
4.The upper part of the impulse safety valve contains an elec-tromagnet to open and another to close off. At ordinary times, the close-off electromagnet may not be electrified, but when the sealed surface of the valve leaks or when the mechanical addition adjusting reseating pressure is excessively low, it can be electrified by closing electromagnet to make valve sealed or help the valve clack return and procure a higher seat reseating pressure.
5.The impulse safety valve only leaves the factory after it has passed the seal and sensitivity tests, proved to be qualified.
When the medium pressure inside the reheater exceeding the allowable value, the impulse safety valve opens firstly; the steam enters into the piston chamber of the main safety valve, forcing the main safety valve to open; the reheater bengins discharging steam;after the excess pressure has been released, the impulse safety valve closes, stopping the steam entering into the piston chamber of the main safety valve; the main safety valve automatically colses at the reactions of the spring and medium.
當(dāng)您與我們?nèi)〉脮r(shí),請(qǐng)您提供的詳細(xì)規(guī)格要求,這將有助于我們給您提供一個(gè)有效的服務(wù)。當(dāng)您有任何疑問(wèn),您可以來(lái)電告知我們,我們一定會(huì)盡心盡力為您提供優(yōu)質(zhì)的服務(wù)。
訂貨須知:(國(guó)家標(biāo)準(zhǔn))
一、A:產(chǎn)品名稱、產(chǎn)品型號(hào)、公稱通徑B:運(yùn)用介質(zhì)及溫度、壓力范圍C:是否有附件、實(shí)驗(yàn)檢驗(yàn)標(biāo)準(zhǔn)、交貨期、特殊要求等事宜、以便我們的為您正確選型。【閘閥站:http://www.shqzfamen.com】
二、若已經(jīng)由設(shè)計(jì)單位選定我公司的型號(hào),請(qǐng)您根據(jù)參數(shù)直接與我們銷售中心訂購(gòu)?!厩蜷y站:http://www.shqzvalve.com】
三、當(dāng)您使用的場(chǎng)合非常重要或環(huán)境比較復(fù)雜時(shí),請(qǐng)您盡量提供設(shè)計(jì)圖紙和詳細(xì)參數(shù),由我們的高級(jí)工程師專家會(huì)專心為您審核與分析?!菊{(diào)節(jié)閥:http://www.shqzfm.com】
我們可以為您提供專業(yè)的解決方案,包括設(shè)計(jì)、定做、成套、運(yùn)行、服務(wù)。上海奇眾閥門(mén)制造有限公司立志成為世界的閥門(mén)制造商。我們一直致力于閥門(mén)行業(yè)領(lǐng)域的*,為您提供的閥門(mén)知識(shí)、的服務(wù)、*的技術(shù)顧問(wèn)。【*站:http://www.shqzv.com】