產(chǎn)品介紹

進(jìn)口自力式壓力調(diào)節(jié)閥是不需要任何外加能源，利用被調(diào)介質(zhì)自生調(diào)節(jié)的執(zhí)行器產(chǎn)品。該產(chǎn)品**特點(diǎn)，能在無(wú)電、無(wú)氣的場(chǎng)所工作，同時(shí)又節(jié)約了能源，壓力設(shè)定值在運(yùn)行中可隨意調(diào)整。采用快開流量特征，動(dòng)作靈敏、密封性能好，因而它廣泛應(yīng)用于石油、化工、電力、冶金、食品、輕紡、機(jī)械制造與居民建筑樓群等各種工業(yè)設(shè)備中各種氣體

產(chǎn)品詳情

用途和適用范圍 Feature and application

自力式壓力調(diào)節(jié)閥(以下簡(jiǎn)稱壓力閥)是一種無(wú)需外來(lái)能源而只依靠調(diào)介質(zhì)自身的壓力變化進(jìn)行自動(dòng)調(diào)節(jié)壓力的節(jié)能型產(chǎn)品．具有測(cè)量、執(zhí)行、控制的綜合功能。廣泛適用于石油、化工、冶金、輕工等工業(yè)部門及城市供熱、供噯系統(tǒng)。本產(chǎn)品可用于非腐蝕性(**溫度350℃)的液體、氣體和蒸汽等介質(zhì)的壓力控制裝置。

Pressure self-regulating valve （herein after referred to as pressure valve）, a energy saving product, regulates pressure automatically without external energy supply. Pressure valve is used for pressure control device of non-corrosive liquid, gas and steam medium etc. that has integrated function of measure, performance and control. Pressure valve finds us in the field of petroleum, chemical industry, metallurgy and light industry and city heating system etc..

結(jié)構(gòu)及工作原理 Structure and working principle

產(chǎn)品結(jié)構(gòu) Structure

本產(chǎn)品為直接作用型自力式壓力調(diào)節(jié)閥．由閥體、閥座、閥芯部件、閥蓋、頂盤、上、下膜蓋、膜片、彈簧、調(diào)節(jié)螺母等零部件所組成。

其具體結(jié)構(gòu)參見圖la，圖lb、圖lc、圖ld所示：

Pressure valve is of direct action type, which is composed of body, seat, core parts, bonnet, highest quotation, diaphragm, spring, adjusting nut and upper and bottom diaphragm cover etc..

The specific structure sees chart 1a, 1b, 1c and 1d.

工作原理 Working principle

(I)作閥后壓力調(diào)節(jié)時(shí)的工作原理：(見圖la)

工藝介質(zhì)的閥前壓力Pl經(jīng)過(guò)閥芯、閥座的節(jié)流后，變?yōu)殚y后壓力P2。P2經(jīng)過(guò)控制管線輸入執(zhí)行器的下膜室作用在頂盤上．產(chǎn)生的作用力與彈簧的反作用力相平衡．決定了閥芯、閥座的相對(duì)位置．控制閥后壓力。當(dāng)閥后壓力P2增加時(shí)．P2作用在頂盤上的作用力也隨之增加。此時(shí)．頂盤的作用力大于彈簧的反作用力．使閥芯關(guān)向閥座的位置．直到頂盤的作用力與彈簧反作用力相平衡為止。這時(shí)．閥芯與閥座之間的流通面積減少．流阻變大．從而使P2降為設(shè)定值。同理，當(dāng)閥后壓力P2降低時(shí)．作用方向與上述相反．這就是閥后壓力調(diào)節(jié)時(shí)的工作原理。當(dāng)需要改變閥后壓力P2的設(shè)定值時(shí)．可調(diào)整調(diào)節(jié)螺母8。

(1)The working principle of regulating the back of valve’s pressure :（see chart 1a）

After being throttled by core and seat, P1 becomes P2.（P1 stands for the front of valve’s pressure and P2 stands for the back of valve’s pressure.）Getting through bottom diaphragm room, P2 acts on the highest quotation and creates acting force. The acting force keeps its balance with reacting force of spring, which decides the relative place of core and seat and controls the back of valve’s pressure. When P2 increases, the acting force is also increasing. Here, the acting force is bigger than the reacting force, which made the core close to the seat until balance. And the circulation area between core and seat decreases and flow resistance increases, thereby P2 fell to the setting value. Also, when P2 decreases, the acting force direction is contrary.

When P2 `s setting value needs to be changed, you can regulate the adjusting nut 8.

• 進(jìn)口氣動(dòng)套筒調(diào)節(jié)閥
  

  進(jìn)口氣動(dòng)套筒調(diào)節(jié)閥是以壓縮空氣為動(dòng)力，由控制器的信號(hào)調(diào)節(jié)流體通路的面積，以改變流體流量的閥門。氣動(dòng)調(diào)節(jié)閥一般都采用氣動(dòng)薄膜執(zhí)行機(jī)構(gòu)，因此也稱為氣動(dòng)調(diào)節(jié)閥。
        氣動(dòng)調(diào)節(jié)閥憑借控制簡(jiǎn)單、反應(yīng)迅速、成本低廉，相較電動(dòng)調(diào)節(jié)閥無(wú)需再采取防爆措施等優(yōu)點(diǎn)，應(yīng)用范圍十分廣泛。遠(yuǎn)東控制在不斷改善常規(guī)氣動(dòng)薄膜執(zhí)行機(jī)構(gòu)笨重與反作用可靠性差等缺點(diǎn)的同時(shí)，研發(fā)了氣動(dòng)執(zhí)行機(jī)構(gòu)，大大提高了產(chǎn)品性能，可同時(shí)滿足中高端客戶的不同需求。

• 進(jìn)口自力式壓力調(diào)節(jié)閥…
  進(jìn)口自力式壓力調(diào)節(jié)閥是不需要任何外加能源，利用被調(diào)介質(zhì)自生調(diào)節(jié)的執(zhí)行器產(chǎn)品。該產(chǎn)品**特點(diǎn)，能在無(wú)電、無(wú)氣的場(chǎng)所工作，同時(shí)又節(jié)約了能源，壓力設(shè)定值在運(yùn)行中可隨意調(diào)整。采用快開流量特征，動(dòng)作靈敏、密封性能好，因而它廣泛應(yīng)用于石油、化工、電力、冶金、食品、輕紡、機(jī)械制造與居民建筑樓群等各種工業(yè)設(shè)備中各種氣體

• 進(jìn)口自力式溫度調(diào)節(jié)閥…
  萊克自力式流量調(diào)節(jié)閥是一個(gè)新的調(diào)節(jié)閥種類，相對(duì)于手動(dòng)調(diào)節(jié)閥，它的優(yōu)點(diǎn)是能夠自動(dòng)調(diào)節(jié)。相對(duì)于電動(dòng)調(diào)節(jié)閥，它的優(yōu)點(diǎn)是不需要 外部動(dòng)力，應(yīng)用實(shí)踐證明，在閉式水循環(huán)系統(tǒng)（如熱水供暖系統(tǒng)，空調(diào)冷凍系統(tǒng)）中，正確使用這種閥門，可以很方便地實(shí)現(xiàn)系統(tǒng)的流量分配；可以實(shí)現(xiàn)系統(tǒng)的動(dòng)態(tài) 平衡；可以大大簡(jiǎn)化系統(tǒng)的調(diào)試工作

• 進(jìn)口自力式流量調(diào)節(jié)閥…
  

  進(jìn)口自力式流量調(diào)節(jié)閥 產(chǎn)品選型

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