進口電動角形高壓調(diào)節(jié)閥的分類及選型依據(jù)德國洛克

一、進口電動角形高壓調(diào)節(jié)閥描述：

德國LOCKE洛克進口電動角形高壓調(diào)節(jié)閥具有動作靈敏、連線簡單、流量大、體積小、調(diào)節(jié)精度高等特點。閥體為直角形，閥芯為單導(dǎo)向結(jié)構(gòu)，閥體流路簡單，阻力小。電動高壓角式調(diào)節(jié)閥特別適用于高粘度，含有懸浮物和顆粒狀介質(zhì)流體的調(diào)節(jié)，可以避免結(jié)焦，堵塞，也便于自潔和水清洗，電動角型調(diào)節(jié)閥一般使用于底進側(cè)出的場合，因為這樣可使調(diào)節(jié)有較好的穩(wěn)定性。本公司生產(chǎn)的電動角型調(diào)節(jié)閥，是由角型調(diào)節(jié)閥體配以LOCKE型(或PSL系列)直行程電子式電動執(zhí)行機構(gòu)組成。執(zhí)行器內(nèi)含飼服功能，接受統(tǒng)一的4-20mA或1-5V·DC的標(biāo)準(zhǔn)信號，將電流信號轉(zhuǎn)變成相對應(yīng)的直線位移，自動地控制電動角型調(diào)節(jié)閥開度，達到對管道內(nèi)流體的壓力、流量、溫度、液位等工藝參數(shù)的連續(xù)調(diào)節(jié)。

The electric angle high pressure control valve imported from Germany locke has the characteristics of sensitive action, simple connection, large flow, small volume and high regulation accuracy. The valve body is rectangular and the valve core is single guide structure. The flow path of the valve body is simple and the resistance is small. The electric high-pressure angle control valve is especially suitable for the adjustment of high viscosity, suspended solids and granular medium fluid, which can avoid coking and blockage, and is convenient for self-cleaning and water cleaning. The electric angle type regulating valve is generally used in the situation of bottom inlet and outlet, because it can make the regulation have better stability. The electric angle control valve produced by our company is composed of angle type regulating valve body and lock type (or PSL Series) straight stroke electronic electric actuator. The actuator contains feeding and clothing function. It receives the unified standard signal of 4-20mA or 1-5V · DC, converts the current signal into the corresponding linear displacement, and automatically controls the opening of the electric angle type regulating valve, so as to continuously adjust the process parameters such as pressure, flow, temperature and liquid level of the fluid in the pipeline.

二、進口電動角形高壓調(diào)節(jié)閥主要技術(shù)參數(shù)：

Nominal diameter DN 15-300 mm

When the adjustable range is kV < 18, r = 20:1; when kV > 18, r = 30:1

Nominal pressure: pn1.6 ～ 32Mpa

Spool form: sleeve guide single seat plunger type spool

Flow characteristic straight line

Action form: electric open type and electric close type

The working temperature is - 40 ~ 230 ℃ for ordinary type, 230 ~ 450 ℃ for fin type, and 450 ~ 600 ℃ for special order

Flange standard: according to JB / t2769-92 standard, can be produced according to ANSI, JIS, DIN, etc

Control signal 4 ～ 20 mA.DC 1-5v.dc; 0-10v.dc (related to the actuator)

Power supply: s220v.ac, 50Hz; 380v.ac, 50Hz (related to the equipped actuator)

Adjustable range: 30:1

主要技術(shù)性能指標(biāo)

Leakage rate class IV, less than 10-4 of rated flow

0% with lock actuator and 1. 0% with PSL actuator

The basic error is ± 2.5% with lock actuator and ± 1.0% with PSL actuator. Note: the packing used in the test is standard PTFE packing

Materials of main parts and components

Valve body material: zg230-450, zg1cr18ni9ti, 316, 316L, wear-resistant alloy, etc

Core seat material: 1Cr18Ni9Ti, 316, 316L, wear-resistant alloy, F4, etc

Packing material: PTFE, flexible graphite

三、進口電動角形高壓調(diào)節(jié)閥主要工況：

進口電動角形高壓調(diào)節(jié)閥是針對調(diào)節(jié)閥在高壓或高壓差、有嚴重汽蝕、沖蝕的嚴酷工況條件下壽命短、閥桿易斷裂、襯套易脫落嚴重問題研制開發(fā)的產(chǎn)品。它采用多級節(jié)流形式來分攤壓差，減少了氣蝕、沖蝕、撓流破壞，大大提高了調(diào)節(jié)閥的使用壽命，特別是用在尿素系統(tǒng)中比普通高壓閥壽命提高2-3倍。閥體為直角形，閥芯為單導(dǎo)向結(jié)構(gòu)，閥體流路簡單，阻力小，特別適用于高粘度，含有懸浮物和顆粒狀介質(zhì)流體的調(diào)節(jié)，可避免結(jié)焦、粘結(jié)、堵塞。

The imported electric angle high-pressure control valve is a product developed for the problems of short service life, easy fracture of valve stem and easy falling off of bushing under severe working conditions of high pressure or high pressure difference, serious cavitation and erosion. It uses multi-stage throttling to share the pressure difference, which reduces cavitation, erosion and deflection damage, and greatly improves the service life of the control valve, especially in the urea system, which is 2-3 times longer than the ordinary high-pressure valve. The valve body is rectangular, and the valve core is of single guiding structure. The flow path of the valve body is simple and the resistance is small. It is especially suitable for the adjustment of high viscosity fluid containing suspended solids and granular media, which can avoid coking, sticking and blocking.