Monitoring type full-automatic positive and negative pressure water discharge device

Abstract

The invention discloses a monitoring type full-automatic positive and negative pressure water discharge device. The monitoring type full-automatic positive and negative pressure water discharge devicecomprises a water storage tank, a filter, a water inlet electric ball valve, a controller, a drainage electric ball valve and an electric two-position three-way valve; the controller comprises a single chip microcomputer, a display screen, an I / O drive circuit, an optoelectronic isolation shaping circuit, an infrared remote control receiver, an audible and visual alarm, a frequency output drive circuit, an RS485 communication module, an on-off output drive circuit and a power supply conversion module; the controller receives a signal of a water level sensor or communication data of a computer, the signal is output through the comprehensive judgment, various valve movements on the water storage tank are controlled, an automatic water discharge function of a field positive and negative pressure pipeline is achieved, the device has a self-diagnosis function and a field failure alarm function and also achieves remote control, supervising and monitoring functions, timely maintenance management and test are convenient, the reliability is high, and the working efficiency of the water discharge device is high. Therefore, 'monitoring' in the monitoring type full-automatic positive and negative pressure water discharge device contains two levels of meaning, on the one hand, the water discharge function is to achieve the monitoring function through monitoring of the water level sensor, on the other hand, the monitoring function of the remote computer can also be achieved through the remote computer.

Description

Technical field [0001] The invention relates to the field of water drainers, in particular to a monitoring type automatic positive and negative pressure water drainer. Background technique [0002] The accumulation of water in the coal mine gas drainage pipeline will cause pipeline blockage, large pressure loss, poor drainage effect, prolonged drainage compliance time, and increased power consumption of the drainage pump, causing unnecessary losses to the coal mine. Therefore, the drainage pipeline is installed The traditional water discharge device generally uses a float type mechanical water discharge device. Although the water can be discharged normally, due to the large space occupied by the float, the inner cavity is narrow, the water storage capacity is small, the water discharge effect is poor, and it is prone to failure when the action is frequent. At the same time, because the water drained by the drainage pipeline contains coal slime, granular cinder, etc., it is easy t...

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Problems solved by technology

[0002] The accumulation of water in the coal mine gas drainage pipeline will cause pipeline blockage, large pressure loss, poor drainage effect, prolonged drainage compliance time, increased power consumption of the drainage pump, and unnecessary losses to the coal mine. Water release device, the traditional water release device generally adopts a float type mechanical water release device, although it can also discharge water normally, due to the large space occupied by the float, the inner cavity is narrow, the water storage capacity is small, the water discharge effect is poor, and it is prone to failure when the action is frequent

At the same time, because the water discharged by the drainage pipeline contains coal slime, granular cinders, etc., it is easy to cause the water discharge device to malfunction or be damaged. In addition to the normal discharge of water, there will be safety hazards

If the water release device is installed on the negative pressure side of the well, it will leak air into the drainage pipeline, dilute the methane concentration, and reduce the concentration of the gas source for the subsequent use of gas; if the water release device is installed on the positive pressure pipeline after the pumping station, then The gas in the pipeline will leak into the air. Since methane is a flammable gas, it will affect the safety performance of the pumping station; because there is no real-time monitoring, it is impossible to know in real time what kind of fault state the water dispenser is in. The traditional method can only rely on manual inspection, which is time-consuming On the other hand, because the water release device is a sealed device, the inspection has no way of knowing the status of the water discharge device, which brings difficulties to the inspection work

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