Water flow cavitation and water hammer will greatly limit the design of process equipment, reduce the production efficiency of process equipment, and increase the maintenance cost of process equipment.

与传统蝶阀相比，新型蝶阀提供了更好的方案。

Compared with the traditional butterfly valve, the new butterfly valve provides a better solution.

阀门是过程工业供水设备中使用非常广泛的设备。

Valves are widely used in process industry water supply equipment.

其高流量，短长度和宽流量调节范围使其成为流量调节应用的宠儿。

Its high flow rate, short length and wide flow regulation range make it the favorite of flow regulation applications.

但在压力调节方面，情况有所不同。

But in terms of pressure regulation, the situation is different.

调节压力时，由于传统蝶阀的压差有限，它们不适合压力调节。

When regulating pressure, traditional butterfly valves are not suitable for pressure regulation due to their limited differential pressure.

经验告诉我们，当蝶阀板上的压力超过输入压力30％时，普通蝶阀会产生气穴。

Experience tells us that when the pressure on the butterfly valve plate exceeds 30% of the input pressure, the ordinary butterfly valve will produce cavitation.

因此，蝶阀是流量调节的理想选择，但蝶阀的使用在压力调节方面受到限制。

Therefore, butterfly valve is an ideal choice for flow regulation, but its use is limited in pressure regulation.

空气的后果口袋

Air consequence pocket

除了高噪音外，气穴还会对管道设备造成极大的磨损和损坏。

In addition to high noise, cavitation will also cause great wear and damage to pipeline equipment.

当流体介质流过管道阀时，由于局部流量减少，流速相应降低。

When the fluid medium flows through the pipeline valve, the flow rate decreases correspondingly due to the local flow reduction.

当压力低于介质的蒸气压时，液体介质中会产生微小的气泡。

When the pressure is lower than the vapor pressure of the medium, tiny bubbles will be generated in the liquid medium.

当含有气泡的液体介质流到静压高的区域时，微小气泡聚集。

When the liquid medium containing bubbles flows to the area with high static pressure, tiny bubbles gather.

这产生了所谓的

This led to the so-called

除了能够改变流体介质的性能外，空化也会产生更强烈的振动，造成严重的噪音污染。

In addition to changing the performance of the fluid medium, cavitation will also produce stronger vibration and cause serious noise pollution.

如果在管壁附近发生空化，则会导致管壁泄漏和阀体泄漏。

If cavitation occurs near the pipe wall, it will lead to pipe wall leakage and valve body leakage.

这不仅会损坏管道阀门，甚可能造成停机维护的风险。

This will not only damage the pipeline valve, but may even cause the risk of shutdown and maintenance.

佳蝶阀结构   r

Structure of butterfly valve r

尽管存在空化损坏的风险，蝶阀一直被认为是一种合适的压力调节方案。

Despite the risk of cavitation damage, butterfly valves have always been considered as a suitable solution for pressure regulation.

原因是安装长度短，可以大大减少工艺设备占用的空间。

The reason is that the installation length is short, which can greatly reduce the space occupied by process equipment.

但是很长一段时间以来，使用蝶阀来调节压力是一种妥协，因为它具有有限的可达性，空化损失的高风险以及水锤损坏的风险。

But for a long time, using butterfly valve to regulate pressure is a compromise because it has limited accessibility, high risk of cavitation loss and risk of water hammer damage.

随着阀门设计的进步和发展，现在有一种新的方案可以保持传统蝶阀的优点，同时也适用于供水设备的压力调节和流量调节。

With the progress and development of valve design, there is now a new solution that can maintain the advantages of traditional butterfly valves, but also suitable for pressure regulation and flow regulation of water supply equipment.

为了空间和气蚀问题，一种带有许多孔的单向可流动蝶阀。

In order to solve the problems of space and cavitation, a one-way flowable butterfly valve with many holes is provided.

这些孔将整个液体流分解成从孔中流出的单体。

These holes decompose the entire liquid flow into a single fluid flowing out of the hole.

新型蝶阀可提供精确的压力和流量调节，低噪音和气穴。

The new butterfly valve can provide accurate pressure and flow regulation, low noise and cavitation.

由于压力恢复系数低，压差远高于传统蝶阀。

Because of the low pressure recovery coefficient, the differential pressure is much higher than that of the traditional butterfly valve.

输入侧阀板孔板结构的蝶阀是穿孔的，可以上下移动，蝶阀出口侧的阀板是带孔的固定阀板。

The butterfly valve with orifice plate structure at the input side is perforated and can move up and down. The valve plate at the outlet side of the butterfly valve is a fixed valve plate with holes.

两个阀板各有大约56个锥形通孔。

Each of the two valve plates has approximately 56 tapered through holes.

##阀门设计确保压差为输入的80％侧压力。

##The valve design ensures that the differential pressure is 80% of the input side pressure.

大工作压力可达0.05？kPa，工作环境温度范围为-51199°C。

Large working pressure can reach 0.05? KPa, the operating ambient temperature range is - 51 to 199 ° C.

阀门关闭时的泄漏率符合AMSE B16.104标准III类的要求和要求。

The leakage rate when the valve is closed shall meet the requirements and requirements of AMSE B16.104 Class III.

阀门可以手动，气动，液压或电动驱动。

The valve can be manually, pneumatically, hydraulically or electrically actuated.

当用作压力或流量控制阀时，确保运行可靠性的一个重要条件是不要将阀门用作常开或关闭阀门。

When used as a pressure or flow control valve, an important condition to ensure operation reliability is not to use the valve as a normally open or closed valve.

简单的工作原理

Simple working principle

由于这种锥形设计，阀门非常能抵抗空化的形成。

Because of this conical design, the valve is very resistant to the formation of cavitation.

即使存在气穴，这个锥形孔也可以减少损坏。

This tapered hole can reduce damage even if there is cavitation.

气穴产生的有害能量被大量的锥形孔减少，因为锥形孔将液体介质的整个流动分解成通过小孔的部分流动。

The harmful energy generated by cavitation is reduced by a large number of conical holes, because the conical holes decompose the whole flow of liquid medium into partial flow through small holes.

这些锥形孔还可以进行精确可靠的调整，确保即使发生气蚀，也不会对阀门造成严重损坏。

These tapered holes can also be adjusted accurately and reliably to ensure that even if cavitation occurs, it will not cause serious damage to the valve.

空化气体的微喷雾在液体介质内部形成微爆，微爆产生的大部分冲击波作用在管壁和阀体上。

The micro spray of cavitating gas forms micro explosion in the liquid medium, and most of the shock waves generated by the micro explosion act on the pipe wall and valve body.

虽然湍流会产生很大的噪音，但它不会对阀门组件造成损坏。

Although turbulence can produce great noise, it will not cause damage to valve components.

因此，这款新型蝶阀非常适合用于具有高压差的条件。

Therefore, this new butterfly valve is very suitable for conditions with high pressure difference.

由于新型蝶阀的特殊结构设计和加工，它采用耐腐蚀合金材料和特殊涂层材料，使用寿命长。

Due to the special structural design and processing of the new butterfly valve, it uses corrosion-resistant alloy materials and special coating materials, with long service life.

快速稳定的流量

Fast and stable flow

与其他类型的高压差动蝶阀相比，新型蝶阀不仅可确保快速稳定的流量，短的盘长，但也允许在蝶阀附近安装其他管道控制组件。

Compared with other types of high-pressure differential butterfly valves, the new butterfly valve can not only ensure fast and stable flow and short disc length, but also allow the installation of other pipeline control components near the butterfly valve.

由于阀门的调整机制垂直于管道的流动方向，阀板具有多个小孔，允许液体介质循环，液体介质的湍流大大减少。

Since the adjustment mechanism of the valve is perpendicular to the flow direction of the pipeline, the valve plate has multiple small holes, allowing the circulation of liquid medium, and greatly reducing the turbulence of liquid medium.

因此，在液体介质流过阀板直径两倍后立即获得稳定的流量，而传统蝶阀的稳定性少是阀板直径的5倍。

Therefore, a stable flow rate can be obtained immediately after the liquid medium flows twice the diameter of the valve plate, while the stability of the traditional butterfly valve is at least 5 times the diameter of the valve plate.

由于新型蝶阀的特殊结构设计和某些应用中使用的特殊材料，该蝶阀可用于所有工业应用和压力调节供水设备，流量调节和温度调节。

Due to the special structural design of the new butterfly valve and the special materials used in some applications, the butterfly valve can be used for all industrial applications and pressure regulation water supply equipment, flow regulation and temperature regulation.

其抗气蚀性能，尺寸短，快速稳定的液体介质为工艺设备规划和设计提供了灵活，可靠的方案。

Its cavitation resistance, short size, fast and stable liquid medium provide a flexible and reliable solution for process equipment planning and design.

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The above wonderful content is recommended by Lianggong Valve Agency. If you want to know more useful knowledge, please click: //www.emojicocoa.com