水流的空化和水錘擊將極大地限制了工藝設備的設計，降低了工藝設備的生產(chǎn)效率，并增加了工藝設備的維護成本。
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.
與傳統(tǒng)蝶閥相比，新型蝶閥提供了更好的方案。
Compared with the traditional butterfly valve, the new butterfly valve provides a better solution.
閥門是過程工業(yè)供水設備中使用非常廣泛的設備。
Valves are widely used in process industry water supply equipment.
其高流量，短長度和寬流量調(diào)節(jié)范圍使其成為流量調(diào)節(jié)應用的寵兒。
Its high flow rate, short length and wide flow regulation range make it the favorite of flow regulation applications.
但在壓力調(diào)節(jié)方面，情況有所不同。
But in terms of pressure regulation, the situation is different.
調(diào)節(jié)壓力時，由于傳統(tǒng)蝶閥的壓差有限，它們不適合壓力調(diào)節(jié)。
When regulating pressure, traditional butterfly valves are not suitable for pressure regulation due to their limited differential pressure.
經(jīng)驗告訴我們，當?shù)y板上的壓力超過輸入壓力30％時，普通蝶閥會產(chǎn)生氣穴。
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，蝶閥是流量調(diào)節(jié)的理想選擇，但蝶閥的使用在壓力調(diào)節(jié)方面受到限制。
Therefore, butterfly valve is an ideal choice for flow regulation, but its use is limited in pressure regulation.
空氣的后果口袋
Air consequence pocket
除了高噪音外，氣穴還會對管道設備造成極大的磨損和損壞。
In addition to high noise, cavitation will also cause great wear and damage to pipeline equipment.
當流體介質(zhì)流過管道閥時，由于局部流量減少，流速相應降低。
When the fluid medium flows through the pipeline valve, the flow rate decreases correspondingly due to the local flow reduction.
當壓力低于介質(zhì)的蒸氣壓時，液體介質(zhì)中會產(chǎn)生微小的氣泡。
When the pressure is lower than the vapor pressure of the medium, tiny bubbles will be generated in the liquid medium.
當含有氣泡的液體介質(zhì)流到靜壓高的區(qū)域時，微小氣泡聚集。
When the liquid medium containing bubbles flows to the area with high static pressure, tiny bubbles gather.
這產(chǎn)生了所謂的
This led to the so-called
除了能夠改變流體介質(zhì)的性能外，空化也會產(chǎn)生更強烈的振動，造成嚴重的噪音污染。
In addition to changing the performance of the fluid medium, cavitation will also produce stronger vibration and cause serious noise pollution.
如果在管壁附近發(fā)生空化，則會導致管壁泄漏和閥體泄漏。
If cavitation occurs near the pipe wall, it will lead to pipe wall leakage and valve body leakage.
這不僅會損壞管道閥門，甚可能造成停機維護的風險。
This will not only damage the pipeline valve, but may even cause the risk of shutdown and maintenance.
佳蝶閥結(jié)構(gòu) r
Structure of butterfly valve r
盡管存在空化損壞的風險，蝶閥一直被認為是一種合適的壓力調(diào)節(jié)方案。
Despite the risk of cavitation damage, butterfly valves have always been considered as a suitable solution for pressure regulation.
原因是安裝長度短，可以大大減少工藝設備占用的空間。
The reason is that the installation length is short, which can greatly reduce the space occupied by process equipment.
但是很長一段時間以來，使用蝶閥來調(diào)節(jié)壓力是一種妥協(xié)，因為它具有有限的可達性，空化損失的高風險以及水錘損壞的風險。
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.
隨著閥門設計的進步和發(fā)展，現(xiàn)在有一種新的方案可以保持傳統(tǒng)蝶閥的優(yōu)點，同時也適用于供水設備的壓力調(diào)節(jié)和流量調(diào)節(jié)。
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.
為了空間和氣蝕問題，一種帶有許多孔的單向可流動蝶閥。
In order to solve the problems of space and cavitation, a one-way flowable butterfly valve with many holes is provided.
這些孔將整個液體流分解成從孔中流出的單體。
These holes decompose the entire liquid flow into a single fluid flowing out of the hole.
新型蝶閥可提供精確的壓力和流量調(diào)節(jié)，低噪音和氣穴。
The new butterfly valve can provide accurate pressure and flow regulation, low noise and cavitation.
由于壓力恢復系數(shù)低，壓差遠高于傳統(tǒng)蝶閥。
Because of the low pressure recovery coefficient, the differential pressure is much higher than that of the traditional butterfly valve.
輸入側(cè)閥板孔板結(jié)構(gòu)的蝶閥是穿孔的，可以上下移動，蝶閥出口側(cè)的閥板是帶孔的固定閥板。
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.
兩個閥板各有大約56個錐形通孔。
Each of the two valve plates has approximately 56 tapered through holes.
##閥門設計確保壓差為輸入的80％側(cè)壓力。
##The valve design ensures that the differential pressure is 80% of the input side pressure.
大工作壓力可達0.05？kPa，工作環(huán)境溫度范圍為-51199°C。
Large working pressure can reach 0.05? KPa, the operating ambient temperature range is - 51 to 199 ° C.
閥門關閉時的泄漏率符合AMSE B16.104標準III類的要求和要求。
The leakage rate when the valve is closed shall meet the requirements and requirements of AMSE B16.104 Class III.
閥門可以手動，氣動，液壓或電動驅(qū)動。
The valve can be manually, pneumatically, hydraulically or electrically actuated.
當用作壓力或流量控制閥時，確保運行可靠性的一個重要條件是不要將閥門用作常開或關閉閥門。
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.
簡單的工作原理
Simple working principle
由于這種錐形設計，閥門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.
即使存在氣穴，這個錐形孔也可以減少損壞。
This tapered hole can reduce damage even if there is cavitation.
氣穴產(chǎn)生的有害能量被大量的錐形孔減少，因為錐形孔將液體介質(zhì)的整個流動分解成通過小孔的部分流動。
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.
這些錐形孔還可以進行精確可靠的調(diào)整，確保即使發(fā)生氣蝕，也不會對閥門造成嚴重損壞。
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.
空化氣體的微噴霧在液體介質(zhì)內(nèi)部形成微爆，微爆產(chǎn)生的大部分沖擊波作用在管壁和閥體上。
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.
雖然湍流會產(chǎn)生很大的噪音，但它不會對閥門組件造成損壞。
Although turbulence can produce great noise, it will not cause damage to valve components.
因此，這款新型蝶閥非常適合用于具有高壓差的條件。
Therefore, this new butterfly valve is very suitable for conditions with high pressure difference.
由于新型蝶閥的特殊結(jié)構(gòu)設計和加工，它采用耐腐蝕合金材料和特殊涂層材料，使用壽命長。
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.
快速穩(wěn)定的流量
Fast and stable flow
與其他類型的高壓差動蝶閥相比，新型蝶閥不僅可確保快速穩(wěn)定的流量，短的盤長，但也允許在蝶閥附近安裝其他管道控制組件。
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.
由于閥門的調(diào)整機制垂直于管道的流動方向，閥板具有多個小孔，允許液體介質(zhì)循環(huán)，液體介質(zhì)的湍流大大減少。
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，在液體介質(zhì)流過閥板直徑兩倍后立即獲得穩(wěn)定的流量，而傳統(tǒng)蝶閥的穩(wěn)定性少是閥板直徑的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.
由于新型蝶閥的特殊結(jié)構(gòu)設計和某些應用中使用的特殊材料，該蝶閥可用于所有工業(yè)應用和壓力調(diào)節(jié)供水設備，流量調(diào)節(jié)和溫度調(diào)節(jié)。
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.
其抗氣蝕性能，尺寸短，快速穩(wěn)定的液體介質(zhì)為工藝設備規(guī)劃和設計提供了靈活，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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