深圳名閥進出口貿易有限公司
進口低溫截止閥,進口低溫減壓閥,進口高壓電磁閥,進口蒸汽電磁閥,進口氣瓶減壓閥,進口氮氣減壓閥,進口電動…
產品
| 產品型號︰ | VTON |
|---|---|
| 產品規格︰ | DN15-500 |
| 產品品牌︰ | 美國威盾 |
| 產品單價︰ | 800/台 |
| 供貨總量︰ | 999 |
| 最小訂量︰ | 1 |
| 發布時間︰ | 2015-11-24 11:01 |
| 有效期至︰ | 2016-02-24 |
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進口熱動力疏水閥
進口熱動力疏水閥是根據伯努力熱動力原理，利用蒸汽和凝結水的熱動力學不同的特性，引起動能和勢能動靜壓變化。使動作件閥片上下壓差變化，啟動閥片開啟和關閉，從而達到阻汽排水目的。
熱動力圓盤式疏水閥適用于蒸汽管網及設備中，能自動排出凝結水、空氣及其它不凝結氣體，並阻水蒸汽泄漏的閥門。
進口疏水閥的分類︰
根據疏水閥工作原理的不同，疏水閥可化為以下幾種類型︰
1 機械型︰依靠蒸汽疏水閥內凝結水液位高度的變化而動作，包括︰
浮球式︰浮子為封閉的空心球體
敞口向上浮子式︰浮子為開口向上的桶型
敞口向下浮子式︰浮子為開口向下的桶型
2 熱靜力型︰依靠液體溫度的變化而動作，包括︰
雙金屬片︰敏感原件為雙金屬片
蒸汽壓力式︰敏感原件為波紋管或墨盒，內部充入揮發性液體
3 熱動力型︰依靠液體的熱動力學性質的變化而動作。
圓盤式︰由于在相同的壓力下，液體與氣體的流速不同，所產生的不同的動，靜壓力，驅使圓盤閥片動作
脈沖式︰由于不同溫度的凝結水通過兩極串連節流孔板式，坐在兩極節流孔板之間形的不同壓力，驅使閥瓣動作。
進口熱動力疏水閥工作原理︰
進口熱動力疏水閥內有一個閥片，既是敏感件又是動作執行件。當裝置啟動時，管道出現冷卻凝結水，凝結水靠工作壓力推開閥片，迅速排放。當凝結水排放完畢，蒸汽進入疏水閥內，蒸汽的體積迅速擴大，蒸汽比凝結水的流速大，使閥片上下產生壓差，閥片在蒸汽流速的吸力下迅速關閉。當閥片關閉時，閥片受到兩面壓力，閥片下面的受力面積小于上面的受力面積，因疏水閥汽室里面的壓力來源于蒸汽壓力，所以閥片上面受力大于下面，閥片緊緊關閉。當疏水閥汽室里面的蒸汽降溫成凝結水，汽室里面的壓力消失。凝結水靠工作壓力推開閥片，凝結水又繼續排放，循環工作，間斷排水。
進口熱動力疏水閥特點︰
體積小，重量輕，不受安裝位置的限制，全部材質均為不銹鋼件，經久耐用，耐腐蝕
在室外不怕冷凍，能耐水擊，耐過熱。
過冷度為8℃，漏汽率小于實際排量3\%，最大背壓50\%
結構簡單，安裝維修方便。
Imported thermal steam traps in a valve, both sensitive parts and action execution. When the device starts, the pipeline appears to cool the condensate water, condensate water by working pressure to open the valve plate, rapid discharge. When condensation water discharge is completed, steam into the steam trap, the volume of steam is rapidly expanding, the flow of steam is greater than the flow rate of condensate, so that the valve plate on the pressure difference, the valve plate at the end of the steam flow quickly closed. When the valve is closed, the valve plate by both sides pressure, the valve under the pressure area below the top of the pressure area, due to the pressure from the steam chamber inside the steam pressure, so the valve plate is greater than the pressure above, the valve plate tightly closed. When the steam in the steam chamber is cooled to condense water, the pressure in the steam chamber disappears. Condensate water by working pressure to open the valve plate, condensate and continue to discharge, work, drainage.
Characteristics of imported thermal steam traps:
Small volume, light weight, no installation location restrictions, all parts are made of stainless steel, durable, corrosion
Not afraid of freezing outside, resistant to water hammer, overheating resistance.
The undercooling of 8 DEG C, the steam leakage rate of less than the actual displacement of 3\%, the maximum back pressure of 50\%
Simple structure, easy installation and maintenance.
使用業績︰
深圳地鐵1號線（羅寶線）Shenzhen metro line 1(luobao line)
深圳地鐵2號線（蛇口線）Shenzhen metro line 2 (shekou line)
深圳地鐵3號線（龍崗線）Shenzhen metro line 3 (longgang line)
深圳地鐵4號線（龍華線）Shenzhen metro line 4(longhua line)
深圳地鐵5號線（環中線）Shenzhen metro line 5(huanzhong line)