检测认证人脉交流通讯录
进口热动力疏水阀
- 用 途:
- 根据伯努力热动力原理,利用蒸汽和凝结水的热动力学不同的特性,引起动能和势能动静压变化
- 进口热动力疏水阀
进口热动力疏水阀是根据伯努力热动力原理,利用蒸汽和凝结水的热动力学不同的特性,引起动能和势能动静压变化。使动作件阀片上下压差变化,启动阀片开启和关闭,从而达到阻汽排水目的。
热动力圆盘式疏水阀适用于蒸汽管网及设备中,能自动排出凝结水、空气及其它不凝结气体,并阻水蒸汽泄漏的阀门。
进口疏水阀的分类:
根据疏水阀工作原理的不同,疏水阀可化为以下几种类型:
1 机械型:依靠蒸汽疏水阀内凝结水液位高度的变化而动作,包括:
浮球式:浮子为封闭的空心球体
敞口向上浮子式:浮子为开口向上的桶型
敞口向下浮子式:浮子为开口向下的桶型
2 热静力型:依靠液体温度的变化而动作,包括:
双金属片:敏感原件为双金属片
蒸汽压力式:敏感原件为波纹管或墨盒,内部充入挥发性液体
3 热动力型:依靠液体的热动力学性质的变化而动作。
圆盘式:由于在相同的压力下,液体与气体的流速不同,所产生的不同的动,静压力,驱使圆盘阀片动作
脉冲式:由于不同温度的凝结水通过两极串连节流孔板式,坐在两极节流孔板之间形的不同压力,驱使阀瓣动作。
进口热动力疏水阀工作原理:
进口热动力疏水阀内有一个阀片,既是敏感件又是动作执行件。当装置启动时,管道出现冷却凝结水,凝结水靠工作压力推开阀片,迅速排放。当凝结水排放完毕,蒸汽进入疏水阀内,蒸汽的体积迅速扩大,蒸汽比凝结水的流速大,使阀片上下产生压差,阀片在蒸汽流速的吸力下迅速关闭。当阀片关闭时,阀片受到两面压力,阀片下面的受力面积小于上面的受力面积,因疏水阀汽室里面的压力来源于蒸汽压力,所以阀片上面受力大于下面,阀片紧紧关闭。当疏水阀汽室里面的蒸汽降温成凝结水,汽室里面的压力消失。凝结水靠工作压力推开阀片,凝结水又继续排放,循环工作,间断排水。
进口热动力疏水阀特点:
体积小,重量轻,不受安装位置的限制,全部材质均为不锈钢件,经久耐用,耐腐蚀
在室外不怕冷冻,能耐水击,耐过热。
过冷度为8℃,漏汽率小于实际排量3%,最大背压50%
结构简单,安装维修方便。
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.
使用业绩:
深圳地铁1号线(罗宝线)Shenzhen metro line 1(luobao line)
深圳地铁2号线(蛇口线)Shenzhen metro line 2 (shekou line)
深圳地铁3号线(龙岗线)Shenzhen metro line 3 (longgang line)
深圳地铁4号线(龙华线)Shenzhen metro line 4(longhua line)
深圳地铁5号线(环中线)Shenzhen metro line 5(huanzhong line)
深圳名阀进出口贸易有限公司
黄生
- 地址:
- 深圳市福田区深南路3037号南光捷佳大厦2716