On the closed tank liquid level alarm application

1. The structure principle of liquid level alarm metering tank easy happening at work called low level called high or walk, take a pot, burning oil pump, such as accident, not only cause the equipment damage, and race oil a lot of damage, environmental pollution, caused great economic losses and social impact. Go to avoid the metering tank liquid level for high or low, take cans, such as accident, install walk called high and low in the tank liquid level alarm, when the tank liquid level to alarm height remind operators pay attention to safety, eliminate accident hidden danger in time. Through ping 1 well as a key Wells in daqing oil field company, was purchased two closed tank to meet the testing work smoothly. UQK - 01 - DIICT4 type liquid level alarm for metering tank in the process of liquid level monitoring alarm instrument played the expected effect. UQK - 01 diict4 float liquid level alarm ( As shown in figure 1) By the isolation of a floating ball and moving contact of two parts. Ball float liquid level alarm is to apply the principle of Archimedes's principle and magnetics. When the measured liquid level rise and fall, floating ball 1 lift, then float the swinging rod swing the axis as the center and bobbing up and down, causing its magnetic steel 2 move up, down, through the magnetic effect, exclusive installed in the shell of the same polarity within 3 magnetic steel plate move up, down, at the other end of the moving contact in the contact 1 - 1 and 2 Between the two connected or disconnected. Make an external control circuit signal alarm or drive ( Stop) Electric pump ( Actuator) Liquid level control, etc, thus to achieve. Alarm float from 1 cri8ni9ti stainless steel, shell and cover the use of copper or glass fiber reinforced plastic, the rest is made of copper and other materials. Action part of the alarm relay contact group is mutually isolated, thus avoid defects tend to be leakage liquid level alarm. UQK - 01 - DIICT4 type liquid level alarm main technical parameters are shown in table 1. The installation of the liquid level alarm and automatic alarm analysis 2. UQK01-1 installation requirements DIICT4 type liquid level alarm for horizontal installation, convenient to alarm device debugging and maintenance. , and the outer holes must be down when installation qualification standard convex flange installation. 2. 2 tank liquid level automatic alarm analysis of both measuring pocket room Settings are called high level and low level UQK - 01 - DIICT4 type liquid level alarm, high and low liquid level alarm and the operation control of the oil transfer pump on the ark of the high and low liquid level indicator is linked together, to achieve the metering tank high level alarm indication and low level chain stop pump. 2. 2. 1 walk called high level alarm in the process of measuring liquid level in the closed warehouse to switch position, UQK01dIICT4 type float liquid level alarm will send alarm signal, prompt people to oil into another storage warehouse or tank inlet valve closed. So as to realize the high level warning instructions, avoid the metering tank take cans and accidents. 2. 2. 2 walk again called low liquid level alarm will play in the process of the liquid in the storage bin, if liquid level reaches the switch position within warehouse, liquid level alarm time delay relay start delay, within the prescribed period of time, if the liquid level continues to decline, alarm trigger signal to realize the on-off switch type low liquid level alarm indication and low level chain stop pumping function, in order to prevent the play pump loss due to low level. 3. Through ping 1 well field application according to the testing work in the years, found that for older metering tank to avoid take cans, cans are flat, oil transfer pump idling, such as accident, workers on duty every 15 minutes to the tank liquid level observation, but often in an emergency. Especially in the harsh conditions, bring many disturbing factors to workers; There is liquid level suddenly moving track is not timely, heavy tank is easy to appear problem such as freezing in winter. Therefore, through ping 1 well, the field production in an airtight tank used explosion-proof liquid level automatic monitoring alarm system installed, implements the tank liquid level automatic monitoring, not only improves the acceptance level, the environmental construction and data accurately reflects in each storage warehouse dynamic liquid level, warehouse storage, meet the requirements of the dynamic metering of crude oil, data is admitted, convenient management and operation, also reduced the labor intensity of workers, to avoid the accident. At the same time, through ping 1 well testing work of party a's satisfaction, get superior leadership. 4. Conclusion ( 1) The liquid level alarm reasonable structure, good performance, alarm *, good stability, realize the all-weather monitoring of metering tank liquid level. ( 2) The application of the liquid level alarm, reducing the dependence on workers monitoring, cancelled the operators can observe level on every 15 minutes, greatly reduce the labor intensity of the post workers, improved the labor efficiency. ( 3) In the use of the liquid level alarm, put an end to the heat, the thunderstorm, winter snow bad environment conditions, such as artificial check the unsafe factors. Application of liquid level alarm, and realized by manual monitoring to the change of liquid level automatic monitoring, improve the safety of the crude oil metering accuracy and it is Shou metering tank liquid level monitoring instrument.