肉妇春潮干柴烈火myfducc,av片在线观看,亚洲色无码a片一区二区潘甜甜,校草被老师肉到失禁h

當前位置:首頁>新聞中心>新聞資訊良工閥門代理商分析閘閥是如何進行工作運行的?

良工閥門代理商分析閘閥是如何進行工作運行的?

來源:http://m.serviceforo.com/ 日期:2021-08-26 發(fā)布人:admin
閘閥(gatevalve)是一個啟閉件閘板,閘板的運動方向與流體方向相垂直,閘閥只能作全開和全關,不能作調(diào)節(jié)和節(jié)流。閘閥通過閥座和閘板接觸進行密封,通常密封面會堆焊金屬材料以增加耐磨性,如堆焊1Cr13、STL6、不銹鋼等。閘板有剛性閘板和彈性閘板,根據(jù)閘板的不同,閘閥分為剛性閘閥和彈性閘閥。
The gate valve is a gate valve with opening and closing parts. The movement direction of the gate valve is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, not adjusted and throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will be overlaid with metal materials to increase the wear resistance, such as overlaying 1Cr13, stl6, stainless steel, etc. The gate valve has rigid gate valve and elastic gate valve. According to different gate valves, the gate valve is divided into rigid gate valve and elastic gate valve.
閘閥的啟閉件是閘板,閘板的運動方向與流體方向相垂直,閘閥只能作全開和全關,不能作調(diào)節(jié)和節(jié)流。閘板有兩個密封面,較常用的模式閘板閥的兩個密封面形成楔形、楔形角隨閥門參數(shù)而異,通常為5°,介質(zhì)溫度不高時為2°52'。
The opening and closing part of the gate valve is the gate, and the movement direction of the gate is perpendicular to the fluid direction. The gate valve can only be fully opened and closed, not adjusted and throttled. The ram has two sealing surfaces. In the more common mode, the two sealing surfaces of the ram valve form a wedge, and the wedge angle varies with the valve parameters, usually 5 °, and 2 ° 52 'when the medium temperature is not high.
楔式閘閥的閘板可以做成一個整體,叫做剛性閘板;也可以做成能產(chǎn)生微量變形的閘板,以改善其工藝性,彌補密封面角度在加工過程中產(chǎn)生的偏差,這種閘板叫做彈性閘板。
The gate of wedge gate valve can be made into a whole, which is called rigid gate valve; It can also be made into a ram that can produce slight deformation to improve its manufacturability and make up for the deviation of the angle of the sealing surface in the processing process. This kind of ram is called elastic ram.
閘閥關閉時,密封面可以只依靠介質(zhì)壓力來密封,即依靠介質(zhì)壓力將閘板的密封面壓向另一側(cè)的閥座來保證密封面的密封,這就是自密封。大部分閘閥是采用強制密封的,即閥門關閉時,要依靠外力強行將閘板壓向閥座,以保證密封面的密封性。
When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the gate valve can be pressed to the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is self sealing. Most gate valves are forced sealed, that is, when the valve is closed, the gate shall be forced to the valve seat by external force to ensure the tightness of the sealing surface.
閘閥的閘板隨閥桿一起作直線運動的,叫升降桿閘閥,亦叫明桿閘閥。通常在升降桿上有梯形螺紋,通過閥門頂端的螺母以及閥體上的導槽,將旋轉(zhuǎn)運動變?yōu)橹本€運動,也就是將操作轉(zhuǎn)矩變?yōu)椴僮魍屏Αi_啟閥門時,當閘板提升高度等于閥門通徑的1:1倍時,流體的通道暢通,但在運行時,此位置是無法監(jiān)視的。
The gate of the gate valve moves in a straight line with the valve stem, which is also called rising stem gate valve. Generally, there are trapezoidal threads on the lifting rod. Through the nut at the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is, the operating torque is changed into operating thrust. When the valve is opened, when the lifting height of the ram is equal to 1:1 times the valve diameter, the fluid channel is unblocked, but this position cannot be monitored during operation.
實際使用時,是以閥桿的頂點作為標志,即開不動的位置,作為它的全開位置。為考慮溫度變化出現(xiàn)鎖死現(xiàn)象,通常在開到頂點位置上,再倒回1/2-1圈,作為全開閥門的位置。因此,閥門的全開位置,按閘板的位置即行程來確定。有的閘閥,閥桿螺母設在閘板上,手輪轉(zhuǎn)動帶動閥桿轉(zhuǎn)動,而使閘板提升,這種閥門叫做旋轉(zhuǎn)桿閘閥,或叫暗桿閘閥。
In actual use, the vertex of the valve stem is used as the mark, that is, the position that cannot be opened is used as its fully open position. In order to consider the locking phenomenon caused by temperature change, it is usually opened to the peak position and then turned back 1 / 2-1 turn as the position of fully open valve. Therefore, the fully open position of the valve is determined according to the position of the ram, that is, the travel. For some gate valves, the valve stem nut is set on the ram, and the rotation of the hand wheel drives the valve stem to rotate and lift the ram. This kind of valve is called rotary rod gate valve or Non rising rod gate valve.

熱銷產(chǎn)品:   執(zhí)行驅(qū)動裝置 通用工業(yè)閥門 冶金工業(yè)閥門 水利水務閥門 石油化工閥門 電力電站閥門 核電軍工閥門

上海良工閥門山東濟南銷售處 網(wǎng)站備案號:魯ICP備2021030403號-1    電話:15098929951 座機:0531—85816056 地址:濟南天橋區(qū)歷山北路198號國際五金機電城A區(qū)412號 
網(wǎng)址:http://m.serviceforo.com/

【本站圖片均由網(wǎng)站所有方提供,部分圖片來源于網(wǎng)絡,如無意中侵犯了某媒體或個人的知識產(chǎn)權,請來信或來電告之,本網(wǎng)站將立即刪除?!?/p>

蜜臀av色欲a片无码精品一区| 同性两个17男互摸互吃的小说| 丰满少妇在线观看网站| 一夜新娘第一季全集免费观看| 将军脔到她哭h粗话h| 亚洲欧洲日产国码无码久久99| 三攻一受4p肉调教| 门卫老头吮她的花蒂在线观看| 国产精品情侣呻吟对白视频| 国产精品免费无遮挡无码永久视频| 年轻漂亮的后玛| 丰满白嫩少妇肉肉大HD| japanese日本丰满少妇 | 最近高清中文在线字幕在线观看| 电影在线观看| 精品人妻一区二区三区四区| 玩弄丰满少妇高潮a片推油小说| 金瓶悔1一5扬思敏完整版| 色翁荡息又大又硬又粗又爽小玲| 黄色电影网站| 狂野欧美性猛交免费视频| 天天躁日日躁aaaaxxxx| 无码一区二区三区| 亚洲一区二区三区av天堂| 美国十次导航| 欧美亚洲熟妇一区二区三区 | 丰满少妇大力进入av亚洲| 国产片+人+综合+亚洲区| 日本肥熟妇搡bbbb搡bbbb| 总裁攻紧致h粗大学生受小说| 成人免费视频| 啪啪社区| 97偷自拍亚洲综合图片| 风间ゆみの熟女俱乐部| 京香julia| 年轻教师6电影完整版| 健身房里的欲乱h文| 黑人勃起太大进不去| 日本黄色视频| 极品粉嫩小泬20P| 51久久成人国产精品麻豆|