CN209339999U - A monitoring type fully automatic positive and negative pressure water release device - Google Patents

Abstract

The utility model discloses a monitoring type full-automatic positive and negative pressure drainer, which comprises a water storage tank, a filter, an electric ball valve for water inlet, a controller, a drain electric ball valve connected with the controller, and an electric two-position three-way valve; The controller includes single-chip microcomputer, display screen, I/O drive circuit, photoelectric isolation shaping circuit, infrared remote control receiver, sound and light alarm, frequency output drive circuit, RS485 communication module, switch output drive circuit and power conversion module; the controller Receive the water level sensor signal or computer communication data, through comprehensive judgment, output signal, control various valve actions on the water storage tank, realize the automatic water discharge function of the positive and negative pressure pipelines on site, the equipment has self-diagnosis function, on-site fault alarm function, and at the same time Realized remote control, monitoring and monitoring functions, convenient for timely maintenance management and testing, high reliability, and high working efficiency of the drainer. It can be seen that the "monitoring" in the monitoring type automatic positive and negative pressure water release device has two meanings. On the one hand, the water discharge function is to realize the control function through the monitoring of the water level sensor, and on the other hand, the monitoring function of the remote computer can also be realized through the network. .

Description

A monitoring type fully automatic positive and negative pressure water release device

technical field

The utility model relates to the field of drainers, in particular to a monitoring type full-automatic positive and negative pressure drainer.

Background technique

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. Drain, the traditional water discharge generally adopts float-type mechanical water discharge, although it can also discharge water normally, because the float occupies a large space, resulting in a narrow inner cavity, small water storage, poor water discharge effect, and prone to failure when the action is frequent. Simultaneously, because the water discharged by the drainage pipeline contains coal slime, granular coal cinder, etc., it is easy to cause the water release device to fail or be damaged. In addition to being unable to discharge water normally, there will also be potential safety hazards. If the water release device is installed at the negative pressure end of the well, air will leak into the drainage pipeline, dilute the methane concentration, and reduce the concentration of the gas source for subsequent use of the 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 drainer is a sealed device, inspections have no way of knowing the status of the drainer, which brings difficulties to the inspection work.

Utility model content

The purpose of this utility model is to solve the above problems, to provide a monitoring type full-automatic positive and negative pressure water discharge device, which can realize both positive pressure and negative pressure water discharge, which can realize a larger pressure range for water discharge, higher water discharge efficiency, and The real-time signal can be transmitted to the substation and the computer, and it is easier to find out the cause of the failure when the water dispenser fails, and it is convenient for timely maintenance.

For this reason, the utility model provides a monitoring type full-automatic positive and negative pressure drainer, including a water storage tank, a filter, a water inlet electric ball valve, a controller, a drainage electric ball valve connected with the controller, and an electric two-position three-way valve The water storage tank is provided with a low water level sensor and a high water level sensor connected to the controller, a gasket, a flange, an electric two-position three-way valve and a controller are provided at the upper end of the water storage tank, and an adjustable support is provided at the bottom of the water storage tank Seat; the filter communicates with the gas pipeline through the water inlet pipe, the water inlet electric ball valve connected with the controller is arranged on the water inlet pipe, the drain electric ball valve is arranged at the lower end of the water storage tank, and the controller is used to The feedback information of the sensor controls the opening or closing of each valve; the common end of the electric two-position three-way valve communicates with the water storage tank, the normally open end communicates with the gas pipeline through the intake pipe, and the normally closed end communicates with the atmosphere.

Further, the position of the high water level sensor is higher than the position of the low water level sensor.

Further, the air intake pipe is provided with an air intake manual ball valve.

Further, the controller includes a single-chip microcomputer, a display screen, an I/O drive circuit, a photoelectric isolation shaping circuit, an infrared remote control receiver, an audible and visual alarm, a frequency output drive circuit, an RS485 communication module, a switch output drive circuit, and a power conversion module; the single-chip microcomputer is connected to the display screen, and the I/O drive circuit includes an I/O drive circuit 1, an I/O drive circuit 2, an I/O drive circuit 3 and a drive circuit 4, and each I/O drive circuit Separately connected with the single-chip microcomputer in turn, the I/O drive circuit 1 is connected with an audible and visual alarm, the I/O drive circuit 2 is connected with a water inlet electric ball valve, and the I/O drive circuit 3 is connected with a drainage electric ball valve. The I/O drive circuit 4 is connected with an electric two-position three-way valve; the photoelectric isolation shaping circuit includes a photoelectric isolation shaping circuit 1, a photoelectric isolation shaping circuit 2 and a photoelectric isolation shaping circuit 3, and each photoelectric isolation shaping circuit is connected to a single-chip microcomputer in turn. , the photoelectric isolation shaping circuit 1 is connected with a high water level sensor, the photoelectric isolation shaping circuit 2 is connected with a low water level sensor, and the photoelectric isolation shaping circuit 3 is connected with an RS485 communication module; Connect with the single-chip microcomputer; the output 3.3V power port of the power conversion module is connected with the photoelectric isolation shaping circuit 3, and the output 18V power port of the power conversion module is connected with the sound and light alarm, the water inlet electric ball valve, the drainage electric ball valve and the electric two-position three-way valve in sequence .

Further, the display screen is an OLED display screen used to display the water level status and fault type of the water dispenser.

Further, the single-chip microcomputer is STM32F103.

Further, the power conversion module is connected to a 127V AC power supply, which is converted into a 3.3V intrinsically safe power supply and an 18V intrinsically safe power supply through the power conversion module. Alarm, water inlet electric ball valve, drain electric ball valve and electric two-position three-way valve work.

The controller is provided with three drainage modes: monitoring drainage, timing drainage and remote control drainage.

The beneficial effects of the utility model are:

1. One piece of equipment, without changing any parts and structures, can realize pipeline water discharge in positive pressure environment and negative pressure environment, and the working pressure range can be increased to -90kPa ~ 100kPa;

2. Effectively solve the problem of loose sealing caused by particles in the slime, resulting in no water discharge or even air leakage, and achieve more reliable water discharge;

3. The electric ball valve is used to realize water intake and drainage, ensuring large flow rate, fast drainage speed and improved drainage efficiency;

4. There are no components in the water storage tank. Compared with the float mechanical water drain, the water storage capacity is larger, and more water is released at one time, which further improves the drainage efficiency;

5. Use the electric two-position three-way valve to switch to realize the air pressure balance inside and outside the water storage tank, so as to ensure the smooth progress of water intake and drainage. Only when it is connected to the atmosphere can the drainage be drained. There is no need to overcome the negative pressure drainage, and the drainage efficiency is also improved;

6. Display the state of the water dispenser and self-diagnosis situation through OLED dot matrix. If there is a fault, use the buzzer of the controller to flash the alarm and prompt maintenance. The display is intuitive and the fault location is easy;

7. The remote control can be used to realize the on-site water inlet and drainage function test, without having to start the machine to check the fault;

8. To ensure the reliable operation of the equipment, a filter is used at the water inlet. Large particles of cinders will not enter the water storage tank. What enters the water storage tank is a mixture of small particles and water. Since the bottom surface adopts a conical surface, the water release device discharges water at the bottom. It ensures that coal slag will not remain in the water storage tank and accumulate, causing blockage failures and poor sealing failures;

9. The signal output adopts switch type and frequency type, which can be connected to substations to transmit data and realize remote monitoring; there is also an RS485 communication module, which transmits real-time information through the downhole switch and computer, realizes remote computer control of the process of water intake and drainage, and can transmit water discharge The status signal of the device realizes remote control;

10. The drainage method can be selected: regular drainage, monitoring drainage, remote control drainage.

Description of drawings

Fig. 1 is the installation structure drawing of the present utility model;

Fig. 2 is the functional block diagram of the controller of the utility model;

Among them, water inlet pipe 1, filter 2, water inlet electric ball valve 3, controller 4, flange 5, gasket 6, high water level sensor 7, water storage tank 8, low water level sensor 9, adjustable support seat 10, drainage motor Ball valve 11, air intake manual ball valve 12, water intake manual ball valve 13, gas pipeline 14, electric two-position three-way valve 15, air intake pipe 16.

Detailed ways

The above is the technical solution content of the utility model, and the solution of the utility model is now specified as follows:

As shown in Fig. 1 and Fig. 2, a monitor-type automatic positive and negative pressure water release disclosed by the utility model includes a water storage tank 8, a filter 2, an electric ball valve for water inlet 3, a controller 4, and is connected to the controller 4 The drainage electric ball valve 11 and the electric two-position three-way valve 15; the water storage tank 8 is provided with a low water level sensor 9 and a high water level sensor 7 connected to the controller 4, and the upper end of the water storage tank 8 is provided with a gasket 6, a flange 5. The electric two-position three-way valve 15 and the controller 4, the bottom of the water storage tank 8 is provided with an adjustable support seat; 3 is set on the water inlet pipe 1, the drain electric ball valve 11 is set at the lower end of the water storage tank 8, and the controller 4 is used to control the opening or closing of each valve according to the feedback information of the low water level sensor 9 and the high water level sensor 7; The common end of the three-way valve 15 communicates with the water storage tank 8, the normally open end communicates with the gas pipeline 14 through the air inlet pipe 16, and the normally closed end communicates with the atmosphere.

Water inlet process: the controller 4 controls the drainage electric ball valve 11 to close, and the closing is completed. The controller 4 controls the electric two-position three-way valve 15 to communicate with the gas pipeline 14. After the connection is completed, the water inlet electric ball valve 3 is opened to make the gas pipeline The stagnant water in 14 passes through water inlet manual ball valve 13, water inlet pipe 1, filter 2, water inlet electric ball valve 3 and water storage tank 8 successively. This completes the water intake process.

Drainage process: the controller 4 sends out a control signal to close the water inlet electric ball valve 3 to stop the water inlet. After closing, the controller 4 sends out a control signal to control the action of the two-position three-way valve 15 to close the gas pipeline 14 and communicate with the atmosphere. After the switching is completed, open the drain electric ball valve 11 to drain water. When the water level is lower than the low water level sensor 9, continue to keep the water discharge process for 1 minute, and the drain is completed.

Further, the position of the high water level sensor 7 is higher than the position of the low water level sensor 9 .

The low water level sensor 9 is used to sense the lower water level in the water storage tank 8, and the high water level sensor 7 is used to sense the higher water level in the water storage tank 8, so the position of the high water level sensor 7 is designed to be higher than the position of the low water level sensor 9.

Further, the intake pipe 16 is provided with an intake manual ball valve 13 .

Further, as shown in Figure 2, the controller 4 includes a single-chip microcomputer, display screen, I/O drive circuit, photoelectric isolation shaping circuit, infrared remote control receiver, sound and light alarm, frequency output drive circuit, RS485 communication module, switch Quantitative output drive circuit and power conversion module; the single-chip microcomputer is connected to the display screen, and the I/O drive circuit includes I/O drive circuit 1, I/O drive circuit 2, I/O drive circuit 3 and I/O drive circuit 4, and each I/O drive circuit is separately connected to the single chip microcomputer in turn, the I/O drive circuit 1 is connected with an audible and visual alarm, the I/O drive circuit 2 is connected with a water inlet electric ball valve 3, and the I/O drive circuit 3 is connected to a drainage electric ball valve 11, and the I/O drive circuit 4 is connected to an electric two-position three-way valve 15; the photoelectric isolation shaping circuit includes a photoelectric isolation shaping circuit 1, a photoelectric isolation shaping circuit 2 and a photoelectric isolation shaping circuit 3, and Each photoelectric isolation shaping circuit is connected with the single chip microcomputer in turn, the photoelectric isolation shaping circuit 1 is connected with the high water level sensor 7, the photoelectric isolation shaping circuit 2 is connected with the low water level sensor 9, the photoelectric isolation shaping circuit 3 is connected with the RS485 communication module; the infrared remote control receiver , frequency output drive circuit, and switch value output drive circuit are all connected to the single-chip microcomputer; the output 3.3V power port of the power conversion module is connected to the photoelectric isolation shaping circuit 3, and the output 18V power port of the power conversion module is connected to the sound and light alarm and the water inlet electric ball valve 3 , Drain electric ball valve 11 and electric two-position three-way valve 15 are connected successively.

Further, the display screen is an OLED display screen used to display the water level status and fault type of the water dispenser.

Further, the single-chip microcomputer is STM32F103.

Single-chip microcomputer STM32F103 realizes the signal reception of high and low water level sensor 9, the reception and response of communication data, automatically controls the work of water inlet electric ball valve 3, drainage electric ball valve 11, electric two-position three-way valve 15, and realizes automatic water release device and fault sound and light Call the police

Further, the power conversion module is connected to a 127V AC power supply, and is converted into a 3.3V intrinsically safe power supply and an 18V intrinsically safe power supply through the power conversion module. Light alarm, water inlet electric ball valve 3, drainage electric ball valve 11 and electric two-position three-way valve 15 work.

Further, the controller 4 is provided with three drainage modes: monitoring drainage, timing drainage and remote control drainage.

Monitor drain pattern

When the remote control or the control computer sets the drainer to monitor drainage mode, the controller 4 executes the monitor drain mode, and when the controller 4 detects that the water level of the water tank is lower than the high water level sensor 7, the drainer is always in the state of water intake, and the water intake process is executed , until the water level is higher than the high water level sensor 7, the drainage process is executed at this time, when the drainage is completed, the water intake process is started again, and the cycle is repeated to realize the monitoring of the water intake and drainage process.

Timed drainage mode

When the monitoring water level sensor breaks down, or the user realizes regular drainage according to the water volume of the gas pipeline 14, the drainage time can be set by the remote control or the remote computer. Timed drainage mode, the water drainer is powered on to start the water intake mode, and the timer is started at the same time. When the timing time of the controller 4 reaches the set time, the controller 4 starts the drainage mode, the drainage is completed, the timer is retimed, and then enters the water intake mode , reciprocating, to achieve regular water intake and drainage process.

Remote Control Drain Mode

When the ground computer performs water intake and drainage control according to the water volume of the gas pipeline 14, it is set to the remote control drainage mode, and the controller 4 just executes the control commands sent by the computer, and executes the water intake process and the drainage process.

Carry out water inlet process and drainage process experiments on the water drainer through the infrared remote control to detect the water drainer electric ball valve 3, drain electric ball valve 11, and electric two-position three-way valve 15 for regular testing and maintenance to ensure that the water drainer is in normal condition. status. The controller 4 realizes local control and remote control. Combined with the remote controller, it can send instructions to the infrared remote control receiver. With the OLED display, it can test whether the drainer is normal, start the process and drainage process, and observe more intuitively whether the status of the drainer is normal. , which is beneficial for maintenance personnel to maintain and locate fault points. In addition, computer communication uses RS485 bus combined with network switch to realize remote control. Of course, frequency signal or switch signal can also be used to realize substation connection and realize remote monitoring function.

The caliber of the electric ball valve adopts DN25 caliber. Under the condition of full flow, the flow rate is much larger than that of the solenoid valve of the same caliber. Compared with the one-way valve of the same caliber used by the mechanical drain, the flow rate is larger. 15 actions, no need to overcome the negative pressure, the water discharge speed is greatly improved, and in the design, the output current of the 18V intrinsically safe power supply can reach 1A, which is more than enough for the electric ball valve with a driving current of only 200mA, so it can fully meet the requirements of the electric ball valve. Work demands. The water level sensor used in this embodiment is an infrared water level sensor, which has high reliability, economical benefits, and strong anti-interference ability. The OLED display can display the working status, fault status and on-site test results of the water dispenser, which is convenient for observation. In terms of communication protocol, Modbus RTU field bus protocol is adopted to realize the setting of parameters such as data collection, control and working mode.

Further, due to the uneven location of the coal mine underground, the inclination of the drainer will affect the waterproof effect. In the design of the support seat, the utility model adopts an adjustable support seat 10, so that the drainer is in the best state of water intake and drainage.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. a kind of full-automatic positive/negative-pressure tailrace of monitor-type, which is characterized in that it includes water tank, filter, water inlet electric ball Valve, controller, draining electrical ball valve connected to the controller and electronic two position three-way valve；It is equipped in the water tank and controller The low water level sensor and high water level sensor of connection, water tank upper end are equipped with gasket, flange, electronic two position three-way valve and control Device processed, the bottom of storage tank are equipped with adjustable support seat；The filter is connected to by water inlet pipe with gas tube, is connected with controller The water inlet electrical ball valve connect is arranged on water inlet pipe, and the draining electrical ball valve is located at water tank lower end, and controller is used for basis Low water level sensor and the feedback information of high water level sensor control opening or closing for each valve；The public affairs of electronic two position three-way valve End is connected to water tank altogether, and normally open end is connected to by air inlet pipe with gas tube, and normal-closed end is communicated with the atmosphere.

2. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 1, which is characterized in that the high water level passes The position of sensor setting is higher than the position of low water level sensor setting.

3. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 1, which is characterized in that in the air inlet pipe Equipped with air inlet manual ball valve.

4. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 1 to 3, which is characterized in that the control Device processed include single-chip microcontroller, display screen, I/O driving circuit, Phototube Coupling shaping circuit, infrared remote control receiver, combined aural and visual alarm, Rate-adaptive pacemaker driving circuit, RS485 communication module, output switch parameter driving circuit and power conversion module；The single-chip microcontroller connects Display screen is connect, the I/O driving circuit includes I/O driving circuit 1, I/O driving circuit 2, I/O driving circuit 3 and driving circuit 4, and each I/O driving circuit is successively connected with single-chip microcontroller, and the I/O driving circuit 1 is connected with combined aural and visual alarm, and I/O drives Dynamic circuit 2 is connected with into water electrical ball valve, and the I/O driving circuit 3 is connected with draining electrical ball valve, the I/O driving circuit 4 It is connected with electronic two position three-way valve；The Phototube Coupling shaping circuit includes Phototube Coupling shaping circuit 1, Phototube Coupling shaping electricity Road 2 and Phototube Coupling shaping circuit 3, and successively single-chip microcontroller connects each Phototube Coupling shaping circuit, Phototube Coupling shaping electricity Road 1 is connected with high water level sensor, and Phototube Coupling shaping circuit 2 is connected with low water level sensor, and Phototube Coupling shaping circuit 3 connects It is connected to RS485 communication module；Infrared remote control receiver, rate-adaptive pacemaker driving circuit, output switch parameter driving circuit are and monolithic Machine connection；Power conversion module output 3.3V power port is connect with Phototube Coupling shaping circuit 3, power conversion module output 18V power port is sequentially connected with combined aural and visual alarm, water inlet electrical ball valve, draining electrical ball valve and electronic two position three-way valve.

5. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 4, which is characterized in that the display screen is To show the OLED display screen of water position status and fault type locating for tailrace.

6. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 4, which is characterized in that the single-chip microcontroller is STM32F103。

7. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 4, which is characterized in that the power conversion Module connects 127V AC power supplies, and is translated into 3.3V intrinsic safety electric source and 18V intrinsic safety electric source, power supply by power conversion module Conversion module exports the work of 3.3V power driving control device circuit, 18V power drives combined aural and visual alarm, water inlet electrical ball valve, row Water electrical ball valve and the work of electronic two position three-way valve.

8. the full-automatic positive/negative-pressure tailrace of a kind of monitor-type according to claim 4, which is characterized in that the controller is set There are three types of discharging modes: monitoring draining, timing drainage and long-range control draining.