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倒吊桶式(過熱蒸汽)疏水閥
INVERTED BUCKET OVERHEAT STEAM TRAP
產品描述
倒吊桶過熱蒸汽疏水閥專門用來克服過熱，高壓，小負荷等多種不利因素。
為了使蒸汽疏水閥在極端惡劣的工況下也能正常工作，采用一種獨特的帶有集水倉的倒吊桶型疏水閥。集水倉存集足夠的凝結水，保證在整個排放周期都能夠保持水封。集水倉中的小桶可以在進汽管口上下浮動。凝結水上升時，它封住進汽管。凝結水流入閥內，由于集水倉收集凝結水并且允許蒸汽從倒吊桶下部流進，故在集水期間排放閥緊密關閉，不存在滴漏現象。
此外，這種蒸汽疏水閥保持了倒吊桶型蒸汽疏水閥的所有特點：
1、耐磨損，耐腐蝕，耐水擊。
2、獨特的杠桿機構將桶提供的力充分放大，可在系統壓力下開啟閥門。
3、閥孔位于閥的頂部，臟物不會存積在閥孔上。
4、在壓差沖洗作用下，臟的小顆粒以懸浮狀態從閥內排出。
5、排放孔通過水封保護，可防止新鮮蒸汽泄漏，桶上的小孔可提供自動排空氣。
6、倒吊桶疏水閥不需要專門調節，凝結水不會存積造成水擊。
Product description
Inverted bucket overheat steam traps are specially used for overcoming unfavorable factors such as excessive heat, high pressure and small load.
Unique inverted bucket steam traps with drain sumps are adopted to assure sound operation of the steam traps under extremely atrocious conditions. A drain sump is filled with adequate condensate so that it can remain water-tight during the whole discharge cycle. The cup inside drain sumps is capable of floating up and down at the opening of the intake pipe. When condensate flows up, the cup can envelop the intake pipe and the condensate flows into the trap. As the drain sump can collect condensate and allows steam to enter from the bottom of the inverted bucket, the discharge valve is closely shut during water collection period without any dripping or leakage.
Besides, this type of steam traps retain all features of inverted bucket steam traps:
1.They are resistant to abrasion, erosion and water hammer.
2.Their unique lever mechanism is able to adequately enlarge the strength offered by the bucket so as to start valves under the system pressure.
3.The valve port is located on the top so as to prevent dirt accumulating on the port.
4.Dirty particles are discharged from inside valve in a suspended state under differential pressure washing.
5.The discharge hole protected by water sealing, can prevent leakage of fresh steam; and the hole on the bucket can discharge air automatically.
6.They do not need special adjustment and the condensate water will not deposit to cause water hammer.
最大工作條件Maximum working condition
最大允許壓力（殼體）:
WDVS64：6.9Mpa@427℃ WDVS100 : 10.5Mpa@454℃
最大工作壓差Maximum operating pressure differential
WDVS64 : 6.9Mpa WDVS100 : 10.5Mpa
連接型式Type of connection
螺紋（僅用于WDVS64），承插焊(W)，配制法蘭(F)
Screw thread (only used for WDVS64), bear insert welding, equipped with flange
材質Material
閥體(valve body) :
WDVS64 A105 ASTM Gr.B碳鋼Sch.80管(Gr.B carbon steel Sch 80 ducts)
WDVS100 316L ASTM A312不銹鋼Sch.80管(A312 stainless steel.Sch 80 ducts))
內件(inner part:) :
304全不銹鋼(304 stainless steel)
閥瓣及閥座 : (valve clack、valve seat)
司太里合金Staly alloy
接口 : WDVS64 304全不銹鋼(304 stainless steel)
WDVS100 316L 不銹鋼(316L stainless steel)
注解：
1、選型時請提供工作壓力、工作壓差、凝結水發生量、工作溫度、連接方式及標準。
2、凝結水負荷的安全系數一般為2～3倍。
3、正確安裝、定期保養清除閥內污物，保證疏水閥正常工作和延長使用壽命。
Note
1. Please provide operating pressure and operatingpressure difference, generating quantity of condensate water, operating temperature, connecting mode and standards in selecting product models.
2. The load of condensate water’s safety coefficient reaches 2 to 3 times in general.
3. Please make sure the drain valve is installed properly, maintained regularly, cleaned up and operates under the normal condition, so as to extend its service life.
訂貨須知Order notice 請指明：型號，連接口徑及連接方式
|
外形尺寸Exterior size |
|
型號 Model |
WDVS64 |
WDVS100 |
|
連接口徑(DN)Connecting calibre |
15,20 |
15 |
20 |
|
Wmm |
108 |
108 |
108 |
|
Lmm |
300 |
360 |
360 |
|
Dmm(法蘭)Flange |
117 |
121 |
130 |
|
L1mm |
400 |
470 |
480 |
|
重量kg(螺紋，承插焊)
Weight kg(thread,bear insert welding) |
5.7 |
7.2 |
|
重量kg(法蘭)Weight kg(flange) |
6.9 |
9.5 |
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倒吊桶式(過熱蒸汽)疏水閥
INVERTED BUCKET OVERHEAT STEAM TRAP
安裝建議Suggestion on installation
通常在過熱高壓小負荷工況下，在集水管和疏水閥內只有極少的凝結水產生。因此，選擇適當的管道及集水管尺寸是正確使用過熱蒸汽疏水閥的關鍵。
Usually under the conditions of excessive heat, high pressure and small load, condensate tends to emerge inside the collecting conduit and the drain traps. Therefore the selection of pipes and conduits of suitable size are the key to proper use of overheat steam traps.
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建議的蒸汽主管及支管集水管尺寸The suggested sizes of the main steam pipe and branch pipe |
|
M |
D |
H－集水管最小長度mmThe minimum length of collector pipe |
|
蒸汽主管mm
Main tube of steam |
集水管mm
Collector pipe |
監控升溫
Mmonitored temperature rise |
自動升溫
Freezing resistance |
|
15 |
15 |
250 |
710 |
|
20 |
20 |
250 |
710 |
|
25 |
25 |
250 |
710 |
|
50 |
50 |
250 |
710 |
|
75 |
75 |
250 |
710 |
|
100 |
100 |
250 |
710 |
|
150 |
100 |
250 |
710 |
|
200 |
100 |
300 |
710 |
|
250 |
150 |
380 |
710 |
|
300 |
150 |
450 |
710 |
|
350 |
200 |
530 |
710 |
|
400 |
200 |
600 |
710 |
|
450 |
250 |
685 |
710 |
|
500 |
250 |
760 |
760 |
|
600 |
300 |
910 |
910 |
集水管尺寸的確定Confirmation of the size of collector pipe
適當尺寸的集水管便于收集凝結水，過小的集水管將會產生“抽吸”效應，致使集水管內壓力降低把凝結水從集水管和疏水閥內抽出。
Collecting conduits of suitable size is easy for collecting condensate, whereas too small collecting conduits have suction effects, which may result in lower pressure within collecting conduits and suction of condensate from conduits and drain traps.
□空氣 ■蒸汽 ■凝結水
操作過程－排放閥孔全開
由于通往閥腔的進汽管被密封，凝結水從集水倉流經進水管進入閥腔，倒吊桶下沉，打開排水閥嘴，周期性的開始排水。
Operation process------opening of all discharge valves and holes
As the admission pipe to valve cavity is sealed up, condensate flows into valve housing through the drain sump and admission pipe, the inverted bucket sinks and opens the discharge valve opening to start water discharge periodically.
排水周期結束
當集水倉中的凝結水位下降，使封閉進汽管的小桶落下，從而打開了蒸汽進入閥體的通道。
End of the discharge cycle
When the water level of condensate in the drain sump drops, the cup to shut the admission pipe falls down, the passage for steam to enter into the valve body is opened.
閥門關閉
當蒸汽進入集水倉，再經進汽管進入閥腔內的倒吊桶內，排水閥緊緊關閉。
Closedown of the valve
When steam enters into the drain sump and into the inverted bucket in valve cavity through the admission pipe, the discharge valve is closely shut.
重復以上循環
當集水倉中的凝結水位升高時，小桶浮起直至再次封閉了進汽管，下一個循環周期開始。
To repeat the aforementioned cycle
When the water level of condensate in the drain sump goes up, the cup flows up until it shuts the admission pipe again, the following cycle starts. |
