在粘膠生產(chǎn)過程中,堿液是其主要的原料之一。我公司對堿計(jì)量采用的是浮筒式遙測液位計(jì)。該儀表采用浮筒和重錘的指針指示,在使用過程中經(jīng)常存在以下問題①鼓形輪經(jīng)常被鋼繩所帯帶的堿液密死,導(dǎo)致儀表指示不準(zhǔn)②重錘重量不足,至使重錘下滑遲最,甚至不下滑,無法帶動指針,導(dǎo)致儀表指示
Alkali liquor is one of the main raw materials in viscose production. Our company adopts float type telemetry liquid level meter for alkali measurement. The indicator of buoy and heavy hammer is used to indicate the instrument. There are often the following problems in the use process: ① drum wheel is often blocked by the alkali liquid carried by the steel rope, resulting in inaccurate instrument indication; ② the weight of the heavy hammer is insufficient, so that the weight of the heavy hammer is delayed or even does not slide, and the pointer cannot be driven, which leads to the instrument indication
數(shù)字液位檢測儀主要由四部分成:J檢測電路,步電機(jī)脈沖分配電路,步電機(jī)驅(qū)動電路②計(jì)數(shù)、置控制高度、數(shù)部分電路」①控信號弘動、輸出報(bào)警電路」④①齒輪變速構(gòu)。圖一為數(shù)字液位檢儀結(jié)構(gòu)棋圖。
The digital liquid level detector is mainly composed of four parts: J detection circuit, stepper motor pulse distribution circuit, stepper motor drive circuit; ② counting, setting control height, and several parts circuit ＂ ① control signal amplifying and output alarm circuit ＂ ④ ① gear speed change mechanism. Figure 1 is the structure diagram of the digital liquid level detector.
1。撿測電路檢測電路中,檢測頭T1和T2的兩端與液面的相對位置有三種狀態(tài)。①檢測頭T1和T2均未浸入液面;②檢測頭T1和T2均浸入液面內(nèi)」③T1浸入液面,T2在液面上。當(dāng)接觸液面時(shí),檢測頭處于高電平“0°當(dāng)檢測頭離開液面后,變?yōu)榈碗娖?ldquo;1”。檢測電路用了七個(gè)門電路」對應(yīng)上述情況,門
1。 In the detection circuit, there are three states of the relative position between the two ends of the detection head T1 and T2 and the liquid level. ① The detection head T1 and T2 are not immersed in the liquid level; ② the detection heads T1 and T2 are immersed in the liquid level; ③ T1 is immersed in the liquid level, and T2 is on the liquid level. When contacting the liquid level, the detection head is at high level "0 ° and becomes low level" 1 "after leaving the liquid level. Seven gates are used in the detection circuit