Automatic control device for ground far-end water taking
Through the automatic control device for water intake at the remote ground, the problem of relying on human control for water supply in the mining area is solved, and the fully automatic water supply of the pool and the stable and reliable water supply of underground water equipment is realized, which reduces waste and safety hazards and provides real-time equipment status monitoring.
Patent Information
- Application Number
- CN202422856427.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The water supply method of existing mining areas relies on artificial control, resulting in water overflow and waste and unstable underground water use, posing safety hazards.
Automatic control device for water withdrawal at the remote ground is adopted, including voltmeter, water pump, solenoid valve, water pressure sensor, flow sensor, water level switch and control circuit, to realize automatic control of tap water and self-priming water pump, ensure that the pool maintains a safe water level, and monitor the equipment working conditions in real time.
It realizes fully automatic water supply control of the pool, ensures the stability and reliability of underground water use equipment, reduces waste and safety hazards caused by human misoperation, and provides real-time equipment status monitoring.
Smart Images
Figure CN223296315U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of control equipment, in particular to an automatic control device for remote ground water intake. Background Art
[0002] With the development of technology, the degree of mechanization in coal mines and other mining areas has been continuously improved. In actual work, due to the downward extension of mining operations, etc., it will involve the use of water for the emulsification pump of the underground comprehensive mining working face and the water supply and rescue system. The relevant equipment has high requirements for the quality and reliability of water supply, and the demand is large. In the existing technology, in order to ensure reliable water supply, a large-capacity pool or water tank (hereinafter referred to as a pool) is generally set up near the ground of the mining area. The pool is usually filled with water by tap water and self-priming water pumps to extract groundwater (mainly to prevent extreme cases where the tap water is cut off, the self-priming water pump is out of power or fails to supply water to the pool. The underground equipment cannot use water). When the power switch of the water pump is turned on, it will pump out the water in the pool or water tank to supply water to the relevant water-using equipment.
[0003] Although the existing mining pool water supply method has met the water needs of related water-using equipment to a certain extent, due to technical limitations, the following technical problems still exist. Specifically, when a self-priming water pump extracts groundwater or tap water to inject water into the pool, relevant personnel are required to manually manage and control it. After the water in the pool is filled, if the staff does not turn off the power supply of the self-priming water pump or the tap water valve in time, it will cause water to overflow from the pool, resulting in a waste of electricity; and when the relevant staff is short of water in the pool and does not replenish it in time, it is impossible to effectively meet the stable and reliable water supply needs of underground water-using equipment, and there are major safety hazards (for example, in the event of a fire underground, there is not enough water for fire-fighting operations, etc.). In summary, it is very necessary to provide an automatic control that can coordinate the working mode of tap water and self-priming water pumps to ensure a reliable water supply to the pool. Utility Model Content
[0004] In order to overcome the problem that the water level of existing mining pools is controlled manually and has the disadvantages as described in the background technology, the present invention provides a method that, under the joint action of relevant mechanisms, can automatically fill the pool with water when there is water in the tap water pipe and the water level in the pool is below a threshold value, and can fill the pool with water through a self-priming water pump when the water level in the pool is below the threshold value and the tap water pipe is cut off, thereby realizing full automatic control and ensuring that the water level in the pool is at a safe level. It can also transmit the tap water pressure and flow, the water level depth in the pool, and the water pressure and flow data of the self-priming water pump to the duty room. The staff in the duty room can understand the working conditions of each equipment without being on site, and can go to the site in time to deal with any abnormality, thereby ensuring a stable and reliable water supply for underground water equipment in the mining area.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] The ground remote water intake automatic control device includes a voltmeter, a water pump, a solenoid valve, a water pressure sensor, a flow sensor, a water pressure switch, a water level switch, and a control circuit; there are multiple sets of water pressure sensors and at least two sets of flow sensors. One end of the solenoid valve is fixedly connected to the water pipe, and the side end of the water pipe is fixedly connected in parallel with the water inlet pipe of the first set of water pressure sensors and the water pressure switch; the water inlet end of the first set of flow sensors is fixedly connected to the other end of the solenoid valve, the water outlet end of the first set of flow sensors is located at the upper part of the pool, and the second set of water pressure sensors is fixedly installed at the bottom of the pool. The switch is fixedly installed at the upper end of the water pool; the outlet pipe of the water pump is fixedly connected to the water inlet end of the second set of flow sensors, the outlet end of the second set of flow sensors is fixedly installed with a drain pipe, the upper end of the drain pipe is located at the upper part of the water pool, and the side end of the water outlet end of the water pump is fixedly connected to the water inlet pipe of the third set of water pressure sensors; the control circuit and voltmeter are installed in the electric control box, and the two wiring terminals of the water level switch and the water pressure switch are respectively electrically connected in series between the four signal input terminals of the control circuit, and the first power output terminal and the second power output terminal of the control circuit are respectively electrically connected to the power input terminal of the solenoid valve and the water pump.
[0007] Furthermore, the signal output ends of the multiple sets of water pressure sensors, the two sets of flow sensors, and the power input ends of the five sets of voltmeters are electrically connected respectively.
[0008] Furthermore, the voltmeter is a liquid crystal DC voltmeter or a pointer DC voltmeter.
[0009] Furthermore, the flow sensor is a turbine flowmeter, the water level switch is a normally closed contact electric contact water level switch, and the water pressure switch is a normally open contact electric contact water pressure switch.
[0010] Furthermore, the control circuit includes three electrically connected relays, the water level switch power input terminal is connected to the control power input terminal of the first relay, the power output terminal of the water level switch is connected to the positive power input terminal of the first relay, the negative power input terminals of the three relays are connected, the normally open contact terminal of the first relay is connected to the water pressure switch power input terminal and the positive power input terminal of the third relay, the water pressure switch power output terminal is connected to the positive power input terminal of the second relay, and the two control power input terminals of the second relay are connected to the normally open contact terminal of the third relay.
[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) under the joint action of relevant mechanisms, when there is water in the tap water pipe and the water level in the pool is lower than the threshold, the control circuit can control the electromagnetic valve to open the valve core, so that the tap water pipe can automatically fill the pool with water, and when the water level in the pool is lower than the threshold and the tap water pipe is cut off, the pool can be filled with water through the self-priming water pump, thereby realizing full automatic control and ensuring that the water level in the pool is safe; (2) three sets of water pressure sensors and two sets of flow sensors can transmit the tap water pressure and flow, the water level depth in the pool, and the water pressure and flow data of the self-priming water pump to the duty room. The staff in the duty room can understand the working conditions of each equipment without going to the site. If necessary, they can go to the site in time to deal with abnormalities in the relevant data, thereby ensuring stable and reliable water supply for underground water equipment in the mining area. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 Schematic diagram of the overall structure of the utility model.
[0014] Figure 2 Circuit diagram of this utility model. DETAILED DESCRIPTION
[0015] Figure 1 、 2 As shown, the ground remote water intake automatic control device includes a power module T1, voltmeters V1, V2, V3, V4, V5, a self-priming water pump M, a solenoid valve DC1, water pressure sensors T2, T3, T4, flow sensors T5, T6, a water pressure switch W2, and a water level switch W1; the water inlet pipe of the self-priming water pump M is fixedly connected to the upper end of the water pumping pipe buried deep underground through a pipe joint, and also has a control circuit 1; there are three sets of water pressure sensors, two sets of flow sensors, one end of the solenoid valve DC1 and the water outlet end of the tap water pipe 2 are fixedly connected through threads, and the upper and lower parts of the right end of the tap water pipe 2 are respectively welded with a valve that is interconnected with its interior. The water inlet pipe of the first set of water pressure sensor T2 and the water pressure switch W2 and the outer ends of the two branch pipes are fixedly connected through pipe joints, the water inlet end of the first set of flow sensor T5 and the other end of the solenoid valve DC1 are fixedly connected through threads, and the water outlet end of the first set of flow sensor T5 is located at the upper end of the water pool 3; the second set of water pressure sensor T3 is fixedly installed on the left bottom of the water pool 3, and the water level switch W1 is fixedly installed on the side of the upper left end of the water pool 3; the water outlet pipe of the self-priming pump M and the water inlet end of the second set of flow sensor T6 are fixedly connected through pipe joints, and the water outlet end of the second set of flow sensor T6 is fixedly installed with a threaded A type drainage pipe 4 is provided, the upper left end of which is located above the right end of the pool 3. A connecting pipe is welded to the outside of the right side of the pipe joint connecting the second set of flow sensors T6 and the water outlet of the self-priming water pump M. The outer end of the connecting pipe is threadedly connected to the water inlet pipe of the third set of water pressure sensors T4. The power module T1, control circuit 1, and all voltmeters are installed in the electric control box 5 in the duty room, and the display interfaces of the multiple voltmeters are located outside the opening at the front end of the electric control box 5. The power input terminals 1 and 2 of the power module T1, the control power input terminal of the relay J3 of the control circuit, and the two poles of the AC 220V power supply are respectively connected via wires. The power output terminals 3 and 4 of the power module T1 are respectively connected to the power input terminals of the three sets of water pressure sensors T2, T3, and T4, and the power input terminals 1 and 2 of the two sets of flow sensors T5 and T6 via wires. Wires connect the first power output terminal of the control circuit, the water pressure switch W2 power output terminal, the negative power output terminal 4 of the power module T1, and the power input terminal of the solenoid valve DC1. Wires also connect the normally closed contact terminal of the relay J2 and the power input terminals of the self-priming water pump M. Wires also connect the power output terminals 3 and 4 of the power module T1, the control power input terminal and the negative power input terminal of the relay J1, the power input terminals of the water pressure sensors T2, T3, and T4, and the flow sensors T5 and T6.
[0016] Figure 1 、 2As shown, wires connect the signal output terminals 3 of three water pressure sensors T2, T3, and T4, two flow sensors T5 and T6, the negative power output terminal of power module T1, and the power input terminals of five voltmeters V1, V2, V3, V4, and V5. Voltmeters V1, V2, V3, V4, and V5 are either liquid crystal DC voltmeters or pointer-type DC voltmeters. Flow sensors T5 and T6 are turbine flowmeters. Water level switch W1 is a stainless steel float-type normally closed electric contact water level switch, and water pressure switch W2 is an adjustable normally open electric contact water pressure switch. The control circuit includes three relays J1, J2 and J3 connected via circuit board wiring. The power input terminal of the water level switch W1 is connected to the control power input terminal of the first relay J1, the power output terminal of the water level switch W1 is connected to the positive power input terminal of the first relay J1, the negative power input terminals of the three relays J1, J2 and J3 are connected, the normally open contact terminal of the first relay J1 is connected to the power input terminal of the water pressure switch W2 and the positive power input terminal of the third relay J3, the power output terminal of the water pressure switch W2 is connected to the positive power input terminal of the second relay J2, and the two control power input terminals of the second relay J2 and the normally open contact terminal of the third relay J3 are connected via wires. The power module T1 is a finished product of an AC 220V to DC 12V switching power supply module; the solenoid valve DC1 is a normally closed valve core solenoid valve with a power of 2W; the relays J1, J2, and J3 are DC12V; the self-priming water pump M has a power of 3kW; the flow sensors T5 and T6 are turbine flow meters of model LWGY-12V, which have two power input terminals and one signal output terminal. The voltage signal output by the signal output terminal increases as the detected flow rate increases, and vice versa. The voltmeters V1, V2, V3, V4, and V5 are four-digit LCD voltage displays with a range of DC 12V; the water level switch W1 is model DPPI-31A; the water pressure switch is a finished product of an adjustable water pressure switch of model PS20-SX; the water pressure sensors T2, T3, and T4 are models HK18-A16C, which have two power input terminals and one signal output terminal. The voltage signal output by the signal output terminal increases as the detected pressure increases, and vice versa. The above-mentioned electrical components are existing mature technologies, and this application will not elaborate on their working principles.
[0017] Figure 1 、 2As shown, after AC 220V enters the power input terminal of the power module T1, the 3rd and 4th pins of the power module T1 output a stable DC 12V power supply which enters the control circuit and the power input terminals of the three sets of water pressure sensors T2, T3, and T4, and the two sets of flow sensors T4 and T5. The above circuits and sensors are powered and work. During operation, the three sets of water pressure sensors T2, T3, and T4 respectively detect the water pressure in the tap water pipe, the water pressure in the pool, and the water pressure data of the outlet pipe of the self-priming water pump M. The higher the water pressure at the detection position, the higher the voltage signal output from the 3rd pin of the water pressure sensors T2, T3, and T4, which enters the power input end of the three sets of voltmeters V1, V2, and V3; the lower the water pressure at the detection position, the lower the voltage signal output from the 3rd pin of the water pressure sensors T2, T3, and T4, which enters the power input end of the three sets of voltmeters V1, V2, and V3. In this way, the personnel in the duty room can understand the water pressure in the tap water pipe, the water pressure in the pool (the higher the water pressure, the greater the water depth in the pool, and vice versa), and the water pressure of the outlet pipe of the self-priming water pump M in real time by observing the voltage data displayed by the three sets of voltmeters V1, V2, and V3. The two sets of flow sensors T5 and T6 will respectively detect the water flow data in the tap water pipe and the water flow data of the outlet pipe of the self-priming water pump M. The higher the water flow at the detection position, the higher the voltage signal output from pin 3 of the flow sensors T5 and T6, which enters the power input end of the two sets of voltmeters V5 and V6. The smaller the water flow at the detection position, the lower the voltage signal output from pin 3 of the flow sensors T5 and T6, which enters the power input end of the two sets of voltmeters V5 and V6. In this way, the personnel in the duty room can understand the water flow data of the tap water pipe and the water flow data of the outlet pipe of the self-priming water pump M in real time by observing the voltage data displayed by the two sets of voltmeters V4 and V5.
[0018] Figure 1 、 2As shown, in actual situations, when the water level in pool 3 is relatively deep, the internal contacts of water level switch W1 are open, and the subsequent relays J1, J2, and J3 will not be powered and work, and neither the tap water nor the self-priming water pump will fill the pool 3. When the water level in pool 3 is relatively shallow (lower than the float height of the water level switch), the internal contacts of water level switch W1 are closed, and then relays J1 and J3 are energized and attracted, and the positive power input terminals of water pressure switch W2 and relay J3 are energized. After relay J3 is energized and attracted, its control power input terminal and normally open contact terminal are closed, and the 220V AC power enters the control power input terminal of relay J2 through the control power input terminal and normally open contact terminal of relay J3; when the water pressure in the tap water pipe is appropriate (that is, there is tap water supply inside, for example, the pressure is higher than 0.05MPa), the internal contacts of water pressure switch W2 are closed, so that the valve core of solenoid valve DC1 is energized and opens, and tap water automatically enters the pool, and at the same time When the relay J2 is energized and closes, the control power input terminal and the normally closed contact terminal are open, and the self-priming pump M will not be energized to work (tap water supplies the pool). When the pool is short of water, the internal contacts of the water level switch W1 are closed, and the relay J3 is energized and closed, but the water pressure in the tap water pipe is too low (for example, less than 0.05MP indicates water shortage) and the internal contacts of the water pressure switch W2 are open, the solenoid valve DC1 will not be energized (tap water will not enter the pool). Since the relay J2 will not be energized and close its control power input terminal and the normally closed contact terminal at the same time, the 220V AC power supply will enter the power input terminal of the self-priming pump M, and the self-priming pump M will be energized to work and pump groundwater into the pool. When the water level in the pool 3 reaches the threshold again, the internal contacts of the water level switch W1 are open, so all relays J1, J2, and J3 lose power and no longer close. The solenoid valve DC1 and the self-priming water pump M also stop working and no longer inject water into the pool. Through all the above technical solutions, the present invention can control the electromagnetic valve to open when there is water in the tap water pipe and the water level in the pool is lower than the threshold value, so that the tap water pipe can automatically fill the pool with water, and when the water level in the pool is lower than the threshold value and the tap water pipe is cut off, the pool can be filled with water through the self-priming water pump (the tap water pipe is used as a priority water supply, and the normally open contact end of the relay J3 can also be connected to the power input end of the self-priming water pump, and the tap water and the self-priming water pump pump water to fill the pool at the same time), realizing full automatic control and ensuring that the water level in the pool is safe; the tap water pressure and flow, the water level depth in the pool, and the water pressure and flow data of the self-priming water pump can be transmitted to the duty room, so that the staff in the duty room can understand the working conditions of each equipment without going to the site, and can go to the site in time to deal with abnormalities when necessary, thereby ensuring stable and reliable water supply for underground water equipment in the mining area.
[0019] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, direct connections, indirect connections through an intermediary, and internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. The ground remote water intake automatic control device includes a voltmeter, a water pump, a solenoid valve, a water pressure sensor, a flow sensor, a water pressure switch, and a water level switch, and is characterized in that: It also has a control circuit; there are multiple sets of water pressure sensors and at least two sets of flow sensors, one end of the solenoid valve is fixedly connected to the tap water pipe, the side end of the tap water pipe is fixedly connected in parallel to the water inlet pipe of the first set of water pressure sensors and the water pressure switch, the water inlet end of the first set of flow sensors is fixedly connected to the other end of the solenoid valve, the water outlet end of the first set of flow sensors is located at the upper part of the water pool, the second set of water pressure sensors is fixedly installed at the bottom of the water pool, and the water level switch is fixedly installed at the upper end of the water pool; the water outlet pipe of the water pump is fixedly connected to the water inlet end of the second set of flow sensors, the water outlet end of the second set of flow sensors is fixedly installed with a drain pipe, the upper end of the drain pipe is located at the upper part of the water pool, and the side end of the water outlet end of the water pump is fixedly connected to the water inlet pipe of the third set of water pressure sensors; the control circuit and voltmeter are installed in the electric control box, the two terminal ends of the water level switch and the water pressure switch are respectively electrically connected in series between the four signal input ends of the control circuit, and the first power output end and the second power output end of the control circuit are respectively electrically connected to the power input end of the solenoid valve and the water pump.
2. The automatic control device for remote water intake according to claim 1, characterized in that: The signal output ends of the multiple sets of water pressure sensors, the two sets of flow sensors and the power input ends of the five sets of voltmeters are electrically connected respectively.
3. The automatic control device for remote water intake according to claim 1, characterized in that: The voltmeter is a type of liquid crystal DC voltmeter and pointer type DC voltmeter.
4. The automatic control device for remote water intake according to claim 1, characterized in that: The flow sensor is a turbine flow meter, the water level switch is a normally closed contact electric contact water level switch, and the water pressure switch is a normally open contact electric contact water pressure switch.
5. The automatic control device for remote water intake on the ground according to claim 1, characterized in that: The control circuit includes three electrically connected relays, the water level switch power input terminal is connected to the control power input terminal of the first relay, the power output terminal of the water level switch is connected to the positive power input terminal of the first relay, the negative power input terminals of the three relays are connected, the normally open contact terminal of the first relay is connected to the power input terminal of the water pressure switch and the positive power input terminal of the third relay, the power output terminal of the water pressure switch is connected to the positive power input terminal of the second relay, and the two control power input terminals of the second relay are connected to the normally open contact terminal of the third relay.