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进口国产化机械密封ZLT型


来源:      发布时间:2017-4-14 11:31:08     点击率:1383

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适用范围

介质:石膏浆液、盐浆液、纸浆、污水等;

浓度:≤25%

温度:<120℃

压力:<1.5MPa

线速度:<10m/s

轴径:Φ100~Φ250mm 

结构特点

1.本结构为紧缩圆盘传动的滑移式单端面集装式机械密封,避免安装时泵的轴向调节对机封压缩量的影响

2.本结构采用独特节流环形式,最大限度防止泵启动时出现干摩擦现象,摩擦副采用整体SiC,抗震动性能增强。

3.采用导流套结构型式,能使有限的冲洗水导入密封面位置进行充分润滑。

使用说明

1.机械密封一般为连续运转,如确需停机,则必须冲洗密封腔,使之不能结疤粘死,影响机械密封元件的浮动性。

2.安装时,应在轴套内孔及O形密封圈上涂润滑油,以利安装。

3.密封腔体和后护板尽可能敞开,密封面对叶轮尽可能靠近,避免浆料淤积在密封面周围导致机封失效。

4.定期对机械密封内部注入少量冲洗水,避免密封面在恶劣工况下运行。

  

Applicable range

Medium:Laster pulp, Salt pulp, Paper pulp and sewage, etc.

Concentration:≤25%

Temperature:<120℃

Pressure:<1.5MPa

Linear speed: <10m/s

Shaft diameter:Φ100~Φ250mm 

Feature of structure:

1.This structure is single-end integrated sliding mechanical sealing transmitted by compact round disc,which prevents from the impact of axial adjustment of pump on compression of mechanical sealant in the course of installation.

2.Unique throttle ring is adopted in this structure, which prevents dry friction to the maximum when the pump is started with intergrated SiC, which enhances vibration resistance performance.

3.Flow guide sleeve is adopted which enables limited rinsing water to be led to sealing surface for sufficient lubrication.

Directions:

1.Generally mechanical sealant runs continuously. If the machine is required to stop running,sealing cavity shall be cleared clean to prevent it from being binded hard,which will affect floating property of mechanically sealed parts.

2.Prior to installation, inner hole of shaft sleeve and O ring shall be applied with lubricant so that it can be installed smoothly.

3.Sealing cavity and tail-board shall as open as possible, and sealing surface shall be as close to impeller as possible, preventing pulp from accumulating around the sealing surface, which will result in mechanical sealant losing its function.

4.A little rinsing water shall be filled into the mechanical sealant regularly to prevent sealing surface from running in poor working conditions.