CN115388988B - A water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging - Google Patents

Abstract

The invention discloses a water level measuring instrument control system capable of automatically diagnosing and repairing faults and preventing blockage, which comprises: the air inlet end and the air outlet end of the air pump are respectively connected with the filter and the tee joint; the output end of the pressure sensor is connected with the control module; the air chamber is internally provided with a sealing mechanism; the outer side of the measuring air pipe is wrapped with a protection pipe; the control module is connected with the fault diagnosis module and the communication module in a two-way manner; the fault diagnosis module is connected with the repair module; a communication module; and a timing module. The automatic fault diagnosis and repair and anti-blocking water level measuring instrument control system utilizes the fault diagnosis module to judge the position where the fault occurs, and the fault diagnosis module is matched with the repair module which drives the corresponding position to repair, so that the maintenance efficiency is improved, the turbine blade and the rotating shaft are driven to rotate by water flow, and the inserted link moves up and down to dredge the pipe orifice of the measuring pipe.

Description

A Water Level Meter Control with Automatic Fault Diagnosis and Repair and Anti-Clogging system

technical field

The invention relates to the technical field related to water level measurement, in particular to a water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-blockage.

Background technique

The water level measuring instrument is an instrument used to measure the change of the liquid level. It is widely used in water conservancy, petroleum, chemical industry, electric power, coal mine and other fields. According to the different measurement principles, it is divided into pressure type, reflective type, float type and tracking type. . Among them, the pressure type water level measuring instrument utilizes the relationship that the pressure of water is proportional to the depth of water, and the depth of water can be calculated by measuring the pressure of water.

The working principle of the commonly used bubble-type water level measuring instrument at present: fix one end of the trachea under the water surface, and connect the other end of the trachea to a pressure-sensing unit. When the air pressure and water pressure in the trachea are balanced, the pressure-sensing unit converts the pressure into water level. Because there is no electrical connection between the equipment and the measured water body, a lot of interference and strong electric damage are avoided. However, since the open end of the trachea is underwater for a long time, it is easy to be blocked by organisms or sediment, and regular maintenance is required. The control system of the water level measuring instrument in the prior art usually requires on-site inspection and repair by professionals after a failure occurs, and some water level measuring instruments are deployed in rivers in remote areas, resulting in increased maintenance and repair costs and time.

Contents of the invention

In order to make up for the gap in the market, the invention provides a water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging.

The purpose of the present invention is to provide a water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging, to solve the problem that the open end of the trachea is under water for a long time and is easily blocked by organisms or silt. Regular maintenance, and the water level measuring instrument control system in the prior art usually requires on-site inspection and repair by professionals after failure, and some water level measuring instruments are deployed in rivers in remote areas, resulting in increased maintenance and repair costs and time.

In order to achieve the above object, the present invention provides the following technical solution: a water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging, including:

An air pump, the air inlet and outlet of the air pump are respectively connected to a filter and a tee, the air pump is connected to a power supply through a relay, and both the relay and the power supply are connected to a control module;

A pressure sensor, the output end of the pressure sensor is connected to the control module, and the input end of the pressure sensor is connected to the tee;

An air chamber, a sealing mechanism is installed inside the air chamber, and the air inlet end and the air outlet end of the air chamber are respectively connected to the tee and the measuring air pipe;

A measuring air pipe, the outer side of the measuring air pipe is wrapped with a protective tube, the bottom end of the measuring air pipe is connected with a measuring cup, and a first rotating shaft is installed on the side of the measuring cup;

A control module, the control module is bidirectionally connected to the fault diagnosis module and the communication module, the control module is unidirectionally connected to the pressure sensor, the relay and the timing module, and the control module is used to receive, calculate and process data;

A fault diagnosis module, the fault diagnosis module is connected to the repair module, and the fault diagnosis module is used to diagnose the location of the fault and start the corresponding repair module;

A communication module, the communication module is used to upload the detection result to the control center and receive the control center signal;

A timing module, the timing module is used to set the detection interval time, and send a time signal to the control module according to the set time.

Further, a first valve, a pressure regulator and a flow meter are installed on the connecting air pipe between the air pump and the tee, the flow meter is close to the tee, and the first valve is close to the air pump, A second valve is installed on the connecting gas pipe between the pressure sensor and the tee, and both the second valve and the first valve are one-way valves.

Further, the closing mechanism is used to block the communication port between the air chamber and the measuring air tube, and a pipe interface is installed at the communication port.

Further, the top of the protection tube is located on the water surface, the measuring cup is completely submerged in the water body, a guide plate is fixed inside the measuring cup, and the connection between the lower end of the guide plate and the side wall of the measuring cup A through hole is opened, and a guide tube is installed at the center of the top surface of the guide plate.

Further, an insertion rod is inserted into the guide tube, the upper end of the insertion rod passes through the guide tube to connect to the elastic member, the elastic member is aligned with the mouth of the measuring trachea, and the lower end of the insertion rod passes through The guide plate is connected to the abutment plate, a spring is sleeved on the insertion rod between the abutment plate and the guide plate, and the bottom surface of the abutment plate abuts against the cam.

Further, the cam is sleeved on the second rotating shaft, one end of the second rotating shaft is connected to the coupling, the other end of the second rotating shaft extends out of the measuring cup through the mounting part, and the second rotating shaft Dispersion leaves are fixed on the protruding part, and both the coupling and the installation part are embedded on the side wall of the measuring cup.

Further, one end of the first rotating shaft is connected to the coupling, the side of the first rotating shaft is provided with turbine blades, the turbine blades and the dispersion blades are respectively located upstream and downstream of the water flow, and the dispersion The leaf is located directly below the via.

Further, the two ends of the pipe interface are the connecting end and the fixed end respectively, and the connecting end and the fixed end respectively face the air chamber and the measuring air pipe, and a partition is fixed inside the pipe interface, The measuring air tube is inserted into the fixed end and connected to the partition.

Further, a fixed block is installed on the side surface of the partition close to the connecting end, and the side surface of the partition close to the fixed end abuts against a limit block, and the limit block is fixed on the side wall of the movable part Above, a spring is connected between the limiting block and the tube interface, an annular inner cavity is formed between the movable part and the tube interface, and the movable part is sleeved on the measuring air tube.

Compared with the prior art, the beneficial effects of the present invention are: the water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging has a reasonable structure, uses the fault diagnosis module to judge the location of the fault, and cooperates with the drive The repair module at the corresponding position is repaired, which improves the maintenance efficiency and avoids professionals going to the scene. The water flow drives the turbine blade and the first rotating shaft to rotate. The first rotating shaft is connected to the second rotating shaft, so that the insertion rod moves up and down to clean the nozzle of the measuring air pipe. Realize the anti-clogging effect, avoid using electrical equipment underwater, and ensure the measurement accuracy and reliability of the equipment;

1. Install a flow meter on the air pipe between the air pump and the tee to detect the gas flow output by the air pump. When the equipment fails, the fault diagnosis module analyzes the detection results of the flow meter to determine whether the position of the air pump is faulty;

2. Use the sealing mechanism in the air chamber to block the measuring air pipe, and cooperate with the air pump to blow air, so as to conveniently judge whether there is an air leakage failure in the measuring air pipe;

3. The first rotating shaft in this equipment is equipped with turbine blades, and the installation direction of the first rotating shaft faces the direction of water flow, and the flow of water body is used to drive the first rotating shaft to rotate, avoiding the use of electric drive devices under water, which not only effectively avoids electrical interference , while reducing the waterproof performance requirements and improving the stability of equipment operation;

4. The movable part on the pipe interface, when there is air leakage at the interface of the measuring trachea, the movable part stretches out to wrap more trachea, and repairs the air leakage problem at the mouth of the pipe without changing the length of the trachea, prolonging the The service life of the equipment.

Description of drawings

Fig. 1 is the front schematic diagram of structure of the present invention;

Fig. 2 is the fault diagnosis and repair flowchart of structure of the present invention;

Fig. 3 is the enlarged schematic view of the anti-blocking mechanism of the structure of the present invention;

Fig. 4 is an enlarged schematic view of the section of the nozzle of the structure of the present invention.

In the figure: 1. Air pump; 2. Pressure sensor; 3. Air chamber; 4. Measuring gas pipe; 5. Control module; 6. Fault diagnosis module; 7. Communication module; 8. Timing module; 9. Repair module; 11. 12. Pressure regulator; 13. Flow meter; 14. Filter; 15. Relay; 21. Second valve; 31. Closing mechanism; 32. Tee; 41. Protection tube; 42. Measuring cup; 43. First rotating shaft; 44. Inserting rod; 45. Second rotating shaft; 46. Pipe interface; 47. Movable parts; 48. Limiting block; 49. Fixed block; 51. Power supply; 421. Through hole; 422. Guide Plate; 431, turbine blade; 432, coupling; 441, elastic member; 442, guide tube; 443, abutment plate; 451, cam; 452, mounting piece; 453, dispersion leaf; 461, connection end; 462, Fixed end; 463, partition; 464, inner cavity.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Specific implementation mode 1: please refer to Fig. 1-4, the present invention provides a technical solution: a water level measuring instrument control system capable of automatic fault diagnosis and repair and anti-clogging, including:

Air pump 1, the air inlet end and air outlet end of air pump 1 are respectively connected to filter 14 and tee 32, air pump 1 is connected to power supply 51 through relay 15, and both relay 15 and power supply 51 are connected to control module 5;

The pressure sensor 2, the output end of the pressure sensor 2 is connected to the control module 5, and the input end of the pressure sensor 2 is connected to the tee 32;

The air chamber 3 is equipped with a sealing mechanism 31 inside the air chamber 3, and the air inlet and outlet ends of the air chamber 3 are respectively connected to the tee 32 and the measuring air pipe 4;

Measuring air pipe 4, the outer side of measuring air pipe 4 is wrapped with protective tube 41, the bottom end of measuring air pipe 4 is connected with measuring cup 42, and the first rotating shaft 43 is installed on the side of measuring cup 42;

A control module 5, the control module 5 is bidirectionally connected to the fault diagnosis module 6 and the communication module 7, the control module 5 is unidirectionally connected to the pressure sensor 2, the relay 15 and the timing module 8, and the control module 5 is used to receive, calculate and process data;

Fault diagnosis module 6, the fault diagnosis module 6 is connected to the repair module 9, the fault diagnosis module 6 is used for diagnosing the location of the fault, and starting the corresponding repair module 9;

The communication module 7, the communication module 7 is used for uploading the detection result to the control center, and receiving the control center signal;

Timing module 8, the timing module 8 is used to set the detection interval time, and sends a time signal to the control module 5 according to the set time.

When using the automatic fault diagnosis and repair and anti-clogging water level measuring instrument control system, when the set time is reached, the timing module 8 sends a time signal to the control module 5, and the control module 5 starts a measurement process, and the control module 5 passes The relay 15 controls the air pump 1 to connect to the power supply 51. The air pump 1 pumps the gas filtered and purified by the filter 14 into the tee 32, and the gas passing through the tee 32 is divided into two paths and enters the pressure sensor 2 and the air chamber 3 respectively. Enter the measuring cup 42 along the measuring air pipe 4, when the air pump 1 stops blowing, the first valve closes 11, the mouth of the measuring air pipe 4 is sealed by the gas, and the gas in the measuring air pipe 4 reaches a dynamic balance, at this time the pressure sensor 2 The pressure is the same as the underwater pressure, and the electrical signal generated by the pressure is transmitted to the control module 5, and the control module 5 receives and processes the signal to obtain the water level measurement result. If the measurement result is greater than the fault preset value, the communication module 7 is used to send The detection result is uploaded to the control center. If the measurement result is less than or equal to the fault preset value, the fault diagnosis module 6 is started for analysis and diagnosis. At the same time, the control module 5 starts the air pump 1, and the flow meter 13 transmits the detection result of the gas flow through the gas pipe to the fault diagnosis Module 6, if the gas flow rate is normal, it indicates that the fault location is no longer the gas pump 1 position, and if the gas flow rate is abnormal, it indicates that the fault location is the gas pump 1 position, at this time start the repair module 9 around the gas pump 1, after the gas flow rate is normal, the fault diagnosis The module 6 feeds back information to the control module 5, and the control module 5 activates the closing mechanism 31, and starts the air pump 1 again. If the pressure value on the pressure sensor 2 increases significantly, it indicates that the fault location is on the measuring air pipe 4. If the pressure sensor 2 is on the The change of the pressure value of the pressure value is small or unchanged, indicating that the fault location is on the pressure sensor 2, and the repair module 9 corresponding to the corresponding position is started for repair. The repair module 9 includes but is not limited to the valve state reset mechanism and the measuring air pipe 4 mouth repair mechanism. , Wire plugging mechanism.

Embodiment 2: This embodiment is a further limitation of Embodiment 1. As shown in FIG. 1 , a first valve 11 , a pressure regulator 12 and a flow meter 13 are installed on the connecting air pipe between the air pump 1 and the tee 32 , the flow meter 13 is close to the tee 32, the first valve 11 is close to the air pump 1, and the connecting air pipe between the pressure sensor 2 and the tee 32 is installed with a second valve 21, both the second valve 21 and the first valve 11 are one-way The valve, the tee 32 is connected with the three air pipes, corresponding to the air pump 1, the pressure sensor 2 and the measuring air pipe 4 respectively.

Embodiment 3: This embodiment is a further limitation of Embodiment 2. As shown in FIG. 1 , the closing mechanism 31 is used to block the communication port of the gas chamber 3 and the measuring air pipe 4, and a pipe interface 46 is installed at the communication port. The measuring trachea 4 is made of tough and aging-resistant materials, but there is a risk of air leakage at the mouth connection of the measuring trachea 4 .

Embodiment 4: This embodiment is a further limitation of Embodiment 1. The top of the protection tube 41 is located on the water surface, the measuring cup 42 is completely immersed in the water body, and the inside of the measuring cup 42 is fixed with a guide plate 422, and the guide plate 422 The connection between the lower end and the side wall of the measuring cup 42 is provided with a through hole 421, and a guide pipe 442 is installed at the center of the top surface of the guide plate 422. Both the through hole 421 and the guide plate 422 are inclined towards the direction of water flow, effectively reducing the sediment entering the measuring cup 42 , and at the same time the effect of the flow of water in the measuring cup 42 is weakened, reducing the impact on the measurement results.

Specific embodiment five: this embodiment is a further limitation of specific embodiment four. As shown in FIG. The part 441 is aligned with the nozzle of the measuring trachea 4, the lower end of the insertion rod 44 runs through the guide plate 422 to connect the abutment plate 443, the insertion rod 44 between the abutment plate 443 and the guide plate 422 is covered with a spring, and the abutment plate 443 The bottom surface is in contact with the cam 451, and the guide tube 442 keeps the insertion rod 44 to move vertically to avoid deviation. The elastic member 441 is composed of a plurality of filaments, which effectively prevents debris from entering the nozzle and avoids blocking the nozzle.

Embodiment 6: This embodiment is further defined in Embodiment 5. The cam 451 is sleeved on the second shaft 45, one end of the second shaft 45 is connected to the coupling 432, and the other end of the second shaft 45 extends through the mounting part 452. out of the measuring cup 42, and the spreading leaf 453 is fixed on the extension of the second rotating shaft 45, the coupling 432 and the mounting part 452 are all embedded on the side wall of the measuring cup 42, and the second rotating shaft 45 drives the cam 451 to rotate, The cam 451 is in contact with the abutment plate 443, and the cam 451 rotates to lift the abutment plate 443 to move, and the second rotating shaft 45 drives the dispersing blade 453 to rotate, so that the impurities discharged from the through hole 421 are dispersed outwards to avoid the problem of clogging caused by accumulation .

Embodiment 7: This embodiment is a further limitation of Embodiment 6. One end of the first rotating shaft 43 is connected to a coupling 432, and the side of the first rotating shaft 43 is provided with a turbine blade 431, and the turbine blade 431 and the dispersion blade 453 are respectively Located upstream and downstream of the water flow, the dispersing vane 453 is located directly below the through hole 421, and uses the flow of water to drive the turbine vane 431 and the first rotating shaft 43 to rotate, avoiding the use of electrical equipment underwater, which is helpful for energy saving and environmental protection, and improves the efficiency of measuring equipment. Running stability.

Embodiment 8: This embodiment is a further limitation of Embodiment 1. As shown in FIG. 4 , the two ends of the pipe interface 46 are the connection end 461 and the fixed end 462 respectively, and the connection end 461 and the fixed end 462 face the air chamber respectively. 3 and the measuring air pipe 4, the inside of the pipe interface 46 is fixed with a partition 463, the measuring air pipe 4 is inserted into the fixed end 462 to connect to the partition 463, and the pipe interface 46 is provided for easy installation.

Embodiment 9: This embodiment is a further limitation of Embodiment 8. A fixed block 49 is installed on the side of the partition 463 near the connecting end 461, and the side of the partition 463 near the fixed end 462 abuts against the limit block. 48, the limit block 48 is fixed on the side wall of the movable part 47, a spring is connected between the limit block 48 and the pipe interface 46, and an annular inner cavity 464 is formed between the movable part 47 and the pipe interface 46, and the movable part 47 sets Set on the measuring air pipe 4, under the action of the spring, the limit block 48 is pressed against the partition plate 463, so that the movable part 47 is shrunk into the inner cavity 464, and when there is an air leakage problem at the nozzle, the fixed block 49 is energized to generate a magnetic force Repulsion is generated with the limit block 48, thereby pushing the movable part 47 to move outward, wrapping more measuring trachea 4, and repairing the air leakage problem.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. A water level gauge control system capable of automatic fault diagnosis and repair and anti-clogging, comprising:

the air pump (1), the air inlet end and the air outlet end of the air pump (1) are respectively connected with the filter (14) and the tee joint (32), the air pump (1) is connected with the power supply (51) through the relay (15), and the relay (15) and the power supply (51) are both connected with the control module (5);

the output end of the pressure sensor (2) is connected with the control module (5), and the input end of the pressure sensor (2) is connected with the tee joint (32);

the air chamber (3), the inside of the air chamber (3) is provided with a closing mechanism (31), and the air inlet end and the air outlet end of the air chamber (3) are respectively connected with a tee joint (32) and a measuring air pipe (4);

the measuring device comprises a measuring air pipe (4), wherein a protective pipe (41) is wrapped on the outer side of the measuring air pipe (4), the bottom end of the measuring air pipe (4) is connected with a measuring cup (42), and a first rotating shaft (43) is arranged on the side face of the measuring cup (42);

the control module (5) is connected with the fault diagnosis module (6) and the communication module (7) in a bidirectional manner, the control module (5) is connected with the pressure sensor (2), the relay (15) and the timing module (8) in a unidirectional manner, and the control module (5) is used for receiving, calculating and processing data;

the fault diagnosis module (6), the fault diagnosis module (6) is connected with the repair module (9), and the fault diagnosis module (6) is used for diagnosing the fault occurrence position and starting the corresponding repair module (9);

the communication module (7) is used for uploading the detection result to the control center and receiving a control center signal;

the timing module (8) is used for setting detection interval time and sending a time signal to the control module (5) according to the set time;

the top end of the protection tube (41) is positioned on the water surface, the measuring cup (42) is completely immersed in the water, a guide plate (422) is fixed in the measuring cup (42), a through hole (421) is formed at the joint of the lower end of the guide plate (422) and the side wall of the measuring cup (42), and a guide tube (442) is arranged at the center of the top surface of the guide plate (422); the guide pipe (442) is internally inserted with a plugboard (44), the upper end of the plugboard (44) penetrates out of the guide pipe (442) to be connected with an elastic piece (441), the elastic piece (441) is aligned with a pipe orifice of the measuring air pipe (4), the lower end of the plugboard (44) penetrates through the guide plate (422) to be connected with an abutting plate (443), a spring is sleeved on the plugboard (44) between the abutting plate (443) and the guide plate (422), and the bottom surface of the abutting plate (443) abuts against the cam (451);

the cam (451) is sleeved on a second rotating shaft (45), one end of the second rotating shaft (45) is connected with a coupler (432), the other end of the second rotating shaft (45) penetrates through a mounting piece (452) to extend out of the measuring cup (42), a dispersing blade (453) is fixed on the extending part of the second rotating shaft (45), and the coupler (432) and the mounting piece (452) are embedded on the side wall of the measuring cup (42);

one end of the first rotating shaft (43) is connected with the coupler (432), a turbine blade (431) is arranged on the side face of the first rotating shaft (43), the turbine blade (431) and the dispersing blade (453) are respectively located at the upstream and the downstream of water flow, and the dispersing blade (453) is located under the through hole (421).

2. The automatic fault diagnosis and repair and anti-clogging water level gauge control system of claim 1, wherein: install first valve (11), voltage regulator (12) and flowmeter (13) on the connecting trachea between air pump (1) and tee bend (32), flowmeter (13) are close to tee bend (32), first valve (11) are close to air pump (1), pressure sensor (2) with install second valve (21) on the connecting trachea between tee bend (32), second valve (21) with first valve (11) are the check valve.

3. The automatic fault diagnosis and repair and anti-clogging water level gauge control system of claim 1, wherein: the closing mechanism (31) is used for closing the communication port of the air chamber (3) and the measuring air pipe (4), and a pipe joint (46) is arranged at the communication port.

4. A water level gauge control system capable of automatic fault diagnosis and repair and anti-clogging as claimed in claim 3, wherein: the two ends of the pipe joint (46) are respectively a connecting end (461) and a fixed end (462), the connecting end (461) and the fixed end (462) face the air chamber (3) and the measuring air pipe (4) respectively, a partition plate (463) is fixed inside the pipe joint (46), and the measuring air pipe (4) is inserted into the fixed end (462) to be connected with the partition plate (463).

5. The automatic fault diagnosis and repair and anti-clogging water level gauge control system of claim 4, wherein: the baffle (463) is close to install fixed block (49) on one side of link (461), baffle (463) is close to butt has stopper (48) on one side of stiff end (462), stopper (48) are fixed on the lateral wall of moving part (47), stopper (48) with be connected with the spring between tube interface (46), moving part (47) with form annular inner chamber (464) between tube interface (46), moving part (47) cover is established on measuring trachea (4).

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