Automatic starting and stopping device of pneumatic diaphragm pump

Abstract

The utility model provides an automatic start-stop device for a pneumatic diaphragm pump. The automatic start-stop device comprises a water level floating electromagnetic induction sensor; the water level floating electromagnetic induction sensor is electrically connected with the water level signal control system; one end of the air supply electromagnetic valve is connected with a pneumatic diaphragm pump, and the other end of the air supply electromagnetic valve is connected with a compressed air pipeline; the air supply electromagnetic valve is electrically connected with the water level signal control system; one end of the pneumatic diaphragm pump is connected with a water suction pipeline, and the other end is connected with a drainage pipeline. The device is applied to coal mine underground roadway water accumulation, the drainage flow of the pneumatic diaphragm pump is larger than that of an operation site, the water inflow and intermittent drainage sites, manual inspection and maintenance of the drainage operation site and air suction of the pneumatic diaphragm pump under the water-free condition are avoided through use of the device, and automatic opening or closing of the pneumatic diaphragm pump can be effectively controlled; and the service life of the pneumatic diaphragm pump can be effectively prolonged, the input number of the pneumatic diaphragm pump is reduced, and underground compressed air resources are saved.

Description

Technical Field

[0001] The present application relates to the field of coal mine technology, and in particular to an automatic start-stop device for a pneumatic diaphragm pump. Background Art

[0002] Underground work sites are subject to changes in hydrogeological conditions, and water may accumulate in tunnels or sedimentation tanks due to factors such as roof dripping, tunnel wall seepage, and production water. Different drainage equipment is often used according to the amount of water output at the work site. Mining pneumatic diaphragm pumps are generally suitable for work sites with small water inflow, intermittent water accumulation, and can meet on-site drainage needs. Mining pneumatic diaphragm pumps are easy to transport and simple to install and operate. However, pneumatic diaphragm pumps require manual start and stop, and often require inspection and maintenance. When there is no water, air suction will occur. If management is neglected, long-term air suction will shorten the service life of the pneumatic diaphragm pump and waste the mine's compressed air resources. Utility Model Content

[0003] The present application provides an automatic start-stop device for a pneumatic diaphragm pump to solve the problems of waste of compressed air resources, reduced service life of the diaphragm pump, and defects in manual inspection and maintenance when the pneumatic diaphragm pump for mining is unmanned.

[0004] The present application provides an automatic start-stop device for a pneumatic diaphragm pump, comprising: a water level floating electromagnetic induction sensor;

[0005] A water level signal control system, wherein the water level floating electromagnetic induction sensor is electrically connected to the water level signal control system;

[0006] An air supply solenoid valve, one end of which is connected to a pneumatic diaphragm pump, and the other end of which is connected to a compressed air pipeline; the air supply solenoid valve is electrically connected to the water level signal control system;

[0007] One end of the pneumatic diaphragm pump is connected to a water suction pipeline, and the other end of the pneumatic diaphragm pump is connected to a drainage pipeline.

[0008] In some possible implementations, the water level floating electromagnetic induction sensor is installed in a water accumulation area or a sedimentation tank.

[0009] In some possible implementations, the water level signal control system is installed 2-3 meters away from the drainage location, and the water level signal control system is also connected to a power supply.

[0010] In some possible implementations, the air supply solenoid valve is installed on a branch of the air supply pipeline.

[0011] In some possible implementations, the water level floating electromagnetic induction sensor is configured to send an instruction to the water level signal control system to start the pneumatic diaphragm pump when detecting that the water level has risen to a preset height.

[0012] From the above, the application provides an automatic start-stop device for a pneumatic diaphragm pump, comprising: a water level floating electromagnetic induction sensor; a water level signal control system, the water level floating electromagnetic induction sensor being electrically connected with the water level signal control system; a supply air electromagnetic valve, one end of the supply air electromagnetic valve being connected with a pneumatic diaphragm pump, and the other end of the supply air electromagnetic valve being connected with a compressed air pipeline; the supply air electromagnetic valve being electrically connected with the water level signal control system; one end of the pneumatic diaphragm pump being connected with a water suction pipeline, and the other end of the pneumatic diaphragm pump being connected with a water discharge pipeline. The device is applied to a coal mine underground roadway water accumulation and a pneumatic diaphragm pump drainage flow being greater than a work site water inflow and an intermittent drainage site. Through the device, manual inspection and maintenance at the drainage work site and air suction of the pneumatic diaphragm pump in a water-free condition are avoided, the automatic opening or closing of the pneumatic diaphragm pump can be effectively controlled, the service life of the pneumatic diaphragm pump can be effectively improved, the number of pneumatic diaphragm pumps to be put into use can be reduced, and underground compressed air gas resources can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0014] Figure 1 The automatic start-stop device for a pneumatic diaphragm pump in the embodiments provided by the present application is shown in the structural schematic diagram.

[0015] Illustration: 1 - water level floating electromagnetic induction sensor; 2 - water level signal control system; 3 - supply air electromagnetic valve; 4 - compressed air pipeline; 5 - pneumatic diaphragm pump; 6 - water suction pipeline; 7 - water discharge pipeline; 8 - power supply. DETAILED DESCRIPTION

[0016] The embodiments will be described in detail below, and examples are shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following embodiments do not represent all the embodiments consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as described in detail in the claims.

[0017] Underground work sites are subject to changes in hydrogeological conditions, and water may accumulate in tunnels or sedimentation tanks due to factors such as roof dripping, tunnel wall seepage, and production water. Different drainage equipment is often used according to the amount of water output at the work site. Mining pneumatic diaphragm pumps are generally suitable for work sites with small water inflow, intermittent water accumulation, and can meet on-site drainage needs. Mining pneumatic diaphragm pumps are easy to transport and simple to install and operate. However, pneumatic diaphragm pumps require manual start and stop, and often require inspection and maintenance. When there is no water, air suction will occur. If management is neglected, long-term air suction will shorten the service life of the pneumatic diaphragm pump and waste the mine's compressed air resources.

[0018] In order to solve the problems of waste of compressed air resources, shortening the service life of diaphragm pumps and defects in manual inspection and maintenance when mining pneumatic diaphragm pumps are not managed, such as Figure 1 As shown, the present application provides an automatic start-stop device for a pneumatic diaphragm pump, comprising:

[0019] Water level floating electromagnetic induction sensor 1; wherein, the water level floating electromagnetic induction sensor is made of stainless steel;

[0020] The water level signal control system 2 is electrically connected to the water level floating electromagnetic induction sensor 1; the water level signal control system 2 is used to receive and send signals;

[0021] An air supply solenoid valve 3, one end of which is connected to a pneumatic diaphragm pump 5, and the other end of which is connected to a compressed air pipeline 4; the air supply solenoid valve 3 is electrically connected to the water level signal control system 2;

[0022] One end of the pneumatic diaphragm pump 5 is connected to a water suction pipe 6, and the other end of the pneumatic diaphragm pump 5 is connected to a drainage pipe 7; when the water level at the drainage location rises, the pneumatic diaphragm pump 5 can automatically open, and can automatically close when the water level drops.

[0023] In some embodiments, the water level floating electromagnetic induction sensor 1 is installed in a water accumulation area or a sedimentation tank.

[0024] In some embodiments, the water level signal control system 2 is installed 2-3 meters away from the drainage location. The water level signal control system 2 is also connected to a power supply 8. In some embodiments, the voltage of the power supply 8 is 127V.

[0025] In some embodiments, the air supply solenoid valve 3 is installed on a branch of the air supply pipeline.

[0026] In some embodiments, the water level floating electromagnetic induction sensor 1 is configured to send an instruction to the water level signal control system 2 to start the pneumatic diaphragm pump 5 when it detects that the water level has risen to a preset height.

[0027] The water level floating electromagnetic sensor 1 of the automatic start-stop device for a pneumatic diaphragm pump provided in this application is installed at a drainage site or sedimentation tank. When the water level rises, the water level floating electromagnetic sensor 1 rises with buoyancy, closing its contacts and sending a high-level signal to the water level signal control system 2. Upon receiving the water level sensor signal, the water level signal control system 2 opens the air supply electromagnetic valve 3, starting the pneumatic diaphragm pump 5 to supply air and perform drainage operations. When the water level drops, the air supply electromagnetic valve 3 automatically closes, and the pneumatic diaphragm pump 5 stops operating.

[0028] The present application provides an automatic start-stop device for a mining pneumatic diaphragm pump, which is suitable for locations where the amount of water accumulation in underground coal mine tunnels is not large and the drainage flow of the pneumatic diaphragm pump meets on-site needs.

[0029] As can be seen from the above embodiments, the present application provides an automatic start-stop device for a pneumatic diaphragm pump, comprising: a water level floating electromagnetic induction sensor; a water level signal control system, wherein the water level floating electromagnetic induction sensor is electrically connected to the water level signal control system; an air supply solenoid valve, wherein one end of the air supply solenoid valve is connected to a pneumatic diaphragm pump, and the other end of the air supply solenoid valve is connected to a compressed air pipeline; the air supply solenoid valve is electrically connected to the water level signal control system; one end of the pneumatic diaphragm pump is connected to a water suction pipeline, and the other end of the pneumatic diaphragm pump is connected to a drainage pipeline. This device is applied to underground coal mine tunnels with water accumulation and the drainage flow of the pneumatic diaphragm pump is greater than the water inflow at the work site and intermittent drainage sites. By using this device, manual inspection and maintenance at the drainage work site and the air suction of the pneumatic diaphragm pump in the absence of water can be avoided, and the automatic opening or closing of the pneumatic diaphragm pump can be effectively controlled. It can also effectively improve the service life of the pneumatic diaphragm pump, reduce the number of pneumatic diaphragm pumps invested, and save underground compressed air gas resources.

[0030] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without expending creative work shall fall within the scope of protection of this application.

Claims

1. An automatic start-stop device for a pneumatic diaphragm pump, characterized in that: include: Water level floating electromagnetic induction sensor (1); A water level signal control system (2), wherein the water level floating electromagnetic induction sensor (1) is electrically connected to the water level signal control system (2); An air supply solenoid valve (3), one end of the air supply solenoid valve (3) is connected to a pneumatic diaphragm pump (5), and the other end of the air supply solenoid valve (3) is connected to a compressed air pipeline (4); the air supply solenoid valve (3) is electrically connected to the water level signal control system (2); One end of the pneumatic diaphragm pump (5) is connected to a water suction pipeline (6), and the other end of the pneumatic diaphragm pump (5) is connected to a drainage pipeline (7).

2. The automatic start-stop device for a pneumatic diaphragm pump according to claim 1, characterized in that: The water level floating electromagnetic induction sensor (1) is installed in a water accumulation area or a sedimentation tank.

3. The automatic start-stop device for a pneumatic diaphragm pump according to claim 1, characterized in that: The water level signal control system (2) is installed 2-3 meters away from the drainage location, and the water level signal control system (2) is also connected to a power supply (8).

4. The automatic start-stop device for a pneumatic diaphragm pump according to claim 1, characterized in that: The air supply solenoid valve (3) is installed on the air supply pipeline branch.

5. The automatic start-stop device for a pneumatic diaphragm pump according to claim 1, characterized in that: The water level floating electromagnetic induction sensor (1) is configured to send an instruction to the water level signal control system (2) to start the pneumatic diaphragm pump (5) when detecting that the water level has risen to a preset height.

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