CN110788979A - Wireless intelligent temperature control maintenance system and method for long-slope panel concrete - Google Patents

Abstract

The invention relates to a wireless intelligent temperature control and maintenance system and method for long-slope panel concrete, wherein the system includes a wireless temperature monitoring module, a computer, a wireless receiving module, an electromagnetic relay, a guillotine, an electric heater, a water tank, an electromagnetic flow valve, Main water pipe, maintenance flower pipe, temperature probe. The computer receives the temperature data collected by the temperature probe collected by the wireless temperature monitoring module through the wireless receiving module. After systematic analysis and comparison, if the internal temperature of the concrete is higher than the concrete surface temperature by a certain value, the system controls the electromagnetic relay to close and close the electromagnetic flow. Valve, start the electric heater to heat the maintenance water in the water tank. After the water temperature rises to meet the requirements, open the electromagnetic flow valve, and sprinkle it on the concrete surface through the main water pipe and the maintenance flower pipe, thereby increasing the temperature of the concrete surface and realizing the wireless intelligent temperature control of the panel concrete. the goal of.

Description

A wireless intelligent temperature control and maintenance system and method for long-slope panel concrete

technical field

The invention belongs to the field of concrete maintenance, and in particular relates to a wireless intelligent temperature control and maintenance system and method for long-slope panel concrete.

Background technique

Face-faced concrete rockfill dams have been widely used due to their wide range of filling materials and low construction cost of nearby materials, and their face-face concrete is the core anti-seepage structure, and crack prevention and control is the focus of quality control. In order to strengthen the quality control after concrete pouring, especially to control the temperature difference between the inside and outside of the panel concrete during the curing process, to avoid the large temperature stress and cracks caused by the excessive temperature difference between the inside and outside. Considering the complex terrain, large scope and long maintenance process of the construction environment of the face-fill dam, a maintenance system and method that can intelligently monitor for a long time and can work in a complex terrain environment is required.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a wireless intelligent temperature control and maintenance system and method for long-slope panel concrete that reduces manpower, intelligent maintenance, and remote control to suit complex maintenance environments.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a wireless intelligent temperature control and maintenance system for long-slope panel concrete, comprising a maintenance water tank, a main water pipe, and a maintenance flower tube connected in sequence, and the maintenance flower tube is arranged above the panel concrete. There is an electromagnetic flow valve on the main water pipe, and the electromagnetic flow valve is connected to the computer; the maintenance water tank is provided with an electric heater, and the electric heater is connected to the computer through an electromagnetic relay; the maintenance water tank, the surrounding environment, and the interior and surface of the panel concrete are respectively provided with at least one temperature probe; the temperature probe is connected to the wireless temperature monitoring module through the temperature probe pin to collect temperature data; the wireless temperature monitoring module communicates with the wireless receiving module connected to the computer. The computer can run the proprietary software of the temperature control and maintenance system, and can receive the temperature data collected by the temperature probe collected by the wireless temperature monitoring module through the wireless receiving module, including the internal temperature of the panel concrete, the surface temperature, the ambient temperature, and the temperature of the maintenance water. Complete the data Storage, analysis, temperature-time curve processing and text export functions, after analyzing and comparing the collected data, if the internal temperature of the concrete is higher than the preset value of the concrete surface temperature, the computer controls the electromagnetic relay to close and close the electromagnetic flow valve. The electric heater starts to heat the maintenance water in the maintenance water tank, and the temperature probe in the maintenance water tank transmits the water temperature to the system in real time. The main water pipe and the curing flower pipe are sprinkled on the concrete surface, thereby increasing the temperature of the concrete surface, and realizing the control of the temperature difference between the inside and outside of the concrete within a certain range.

Further, a knife is also provided between the electric heater and the electromagnetic relay, which can realize the manual switching operation of the electric heater, and is convenient for the maintenance and operation of the electric heater.

Further, the maintenance flower tube is provided with a ball valve at the connection with the main water pipe; the maintenance flower tube is evenly provided with a plurality of water outlets at the upper part of the panel concrete, so as to achieve uniform water outlet of the maintenance water, and the outflow of the maintenance water can be manually controlled by the ball valve.

Further, when the distance between the temperature probe and the wireless temperature monitoring module is less than or equal to 50m, use ordinary three-core wire; when it is greater than 50m, use 3/6/9-core shielded wire. The 3/6/9-core shielded cable can achieve a maximum data transmission distance of 150m and ensure the acquisition accuracy of temperature data.

Further, the temperature probe adopts thermal resistance type, the temperature measurement range is -50~200 °C, and the measurement accuracy is ±0.5 °C. Reliability of temperature data, waterproof and moisture-proof, suitable for various working environments.

Further, the wireless temperature monitoring module works based on the industrial MODBUS-RTU protocol; the transmission baud frequency can be set to 2400/4800/9600bps, and the address code of the local module can be set, and the coding range is 1~63 to achieve low-cost temperature status It is a practical integrated module for online monitoring, and can meet the requirements of multiple wireless temperature monitoring modules running at the same time.

Further, a liquid level indicator is provided in the maintenance water tank. The liquid level indicator is arranged near the lower part of the water inlet of the maintenance water tank, and the water level of the maintenance water tank is judged by the liquid level indicator, so that the maintenance water in the maintenance water tank is always full.

A wireless intelligent temperature-control maintenance method for long-slope panel concrete, comprising the following steps:

(a) Collect the internal and external temperature data of the panel concrete and the water temperature data in the curing water tank;

(b) Determine whether the temperature difference between the inside and outside of the panel concrete exceeds the standard through the preset value. When the temperature difference exceeds the standard, close the electromagnetic flow valve to stop the supply of maintenance water, close the electromagnetic relay, and start the electric heater in the maintenance water tank to heat the maintenance water; when the maintenance water temperature Continue to heat the maintenance water when the demand is not met, and continue to step (c) when the demand is met;

(c) Open the electromagnetic flow valve, and the maintenance water is used to maintain the panel concrete through the main water pipe and the maintenance flower pipe; repeat steps (a) to (c) to complete the wireless intelligent temperature control maintenance of the long slope panel concrete.

Further, step (a) also includes collecting ambient temperature data, comparing the ambient temperature data, the internal and external temperature data of the panel concrete, and the water temperature data in the maintenance water tank to determine whether the maintenance process is performed normally.

Further, the collection of ambient temperature data, internal and external temperature data of panel concrete, and water temperature data in the curing water tank adopts a multi-point collection method, and the required data is obtained by averaging multiple data of each temperature.

Compared with the prior art, the beneficial technical effects of the present invention are:

1. Real-time monitoring and recording of internal and external temperature, maintenance water temperature, and ambient temperature during the maintenance process of panel concrete. After intelligent analysis of the computer system, the electric heater can be controlled to adjust the maintenance water temperature according to the temperature difference between the inside and outside of the concrete, so as to increase or decrease the concrete surface. In this way, the real-time control of the temperature difference between the inside and outside of the concrete is realized, and the intelligent control of the effective control of the temperature difference between the inside and outside of the panel concrete is achieved. The disadvantages can effectively improve the maintenance effect of the face concrete and improve the quality of the concrete face.

2. Through wireless transmission of data, it can realize long-distance intelligent maintenance of panel concrete, which can adapt to various working environments, has a wide range of applications, and is less restricted by terrain and area. It is suitable for large-scale water conservancy and hydropower projects, avoiding the use of line connection for temperature monitoring. When the wiring is complicated and easy to fault.

3. Carry out multi-temperature data collection to improve the maintenance effect, realize the real-time and accurate data, and monitor to prevent abnormal maintenance process.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic flow chart of the present invention.

In the figure, 1 is the computer, 2 is the wireless receiving module, 3 is the wireless temperature monitoring module, 4 is the temperature probe pin, 5 is the temperature probe, 6 is the electromagnetic relay, 7 is the knife, 8 is the water tank, and 9 is the electric heating 10 is the main water pipe, 11 is the electromagnetic flow valve, 12 is the maintenance flower pipe, and 13 is the panel concrete.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, a wireless intelligent temperature control and maintenance system for long-slope panel concrete includes a maintenance water tank 8, a main water pipe 10, and a maintenance flower tube 12 connected in sequence, and the maintenance flower tube 12 is arranged above the panel concrete 13; the main water pipe 10 is provided with an electromagnetic flow valve 11, which is connected to the computer 1; the maintenance water tank is provided with an electric heater 9, and the electric heater 9 is connected to the computer 1 through the electromagnetic relay 6; the maintenance water tank 8, the surrounding environment, and the interior of the panel concrete 13 At least one temperature probe 5 is provided on the surface of the device and the surface respectively; if there are multiple temperature probes 5 in the same part, after setting in the intelligent temperature control and maintenance system, the data will be processed according to the average value; the temperature probe 5 will pass through the temperature probe pin 4. Connect the wireless temperature monitoring module 3 to collect temperature data; the wireless temperature monitoring module 3 communicates with the wireless receiving module 2 connected to the computer 1 . The electromagnetic flow valve 11 is connected with the COM2 interface of the computer 1; the electromagnetic flow valve 11 can control the maintenance water flow and switch state, and only after the water temperature reaches the system requirements, the system automatically controls the electromagnetic flow valve 11 to control the maintenance water flow out according to the maintenance area. The electromagnetic relay 11 interfaces with COM1 of the computer 1 ; a knife 7 is also provided between the electric heater 9 and the electromagnetic relay 6 , which is convenient for manually switching the electric heater and maintaining and operating the electric heater 9 .

The maintenance flower tube 12 is provided with a ball valve at the connection with the main water pipe 10; The maintenance flower tube adopts a smaller diameter PE pipe, the diameter of the water outlet is 2mm, and the distance between the water outlets is 10cm to achieve uniform water output.

When the distance between the temperature probe 5 and the wireless temperature monitoring module 3 is less than or equal to 50m, the temperature probe foot wire 4 uses an ordinary three-core wire; when the distance is greater than 50m, a 3/6/9-core shielded wire is used. A single wireless temperature monitoring module can theoretically connect up to 180 temperature probes. If the length of the temperature measurement cable is large and the range is wide, generally only 15 temperature probes can be connected at most to ensure the accurate temperature data collected.

The temperature probe 5 adopts the thermal resistance type, the temperature measurement range is -50~200 °C, and the measurement accuracy is ±0.5 °C. Reliable comparison of data.

The wireless temperature monitoring module 3 works based on the industrial MODBUS-RTU protocol; the transmission baud frequency can be set to 2400/4800/9600bps, and the address code of the local module can be set, and the coding range is 1~63 to realize low-cost temperature status online monitoring It is a practical integrated module, and can meet the requirements of multiple wireless temperature monitoring modules 3 running at the same time.

The maintenance water tank 8 is provided with a liquid level gauge. The water inlet of the maintenance water tank 8 is at the high level of the water tank, and the water outlet is at the low level of the water tank. Setting a liquid level device at the water inlet position can automatically control the water level in the maintenance water tank 8 to maintain a constant full state.

A wireless intelligent temperature-control maintenance method for long-slope panel concrete, comprising the following steps:

(a), collect the internal and external temperature data of the panel concrete 13 and the water temperature data in the curing water tank 8;

(b) Determine whether the temperature difference between the inside and outside of the panel concrete 13 exceeds the standard through the preset value. When the temperature difference exceeds the standard, close the electromagnetic flow valve 11 to stop the supply of maintenance water, close the electromagnetic relay 6, and start the electric heater 9 in the maintenance water tank 8 to prevent the maintenance water. Heating; when the maintenance water temperature does not meet the demand, continue to heat the maintenance water, and continue to step (c) when the demand is met;

(c) Open the electromagnetic flow valve 11, and the maintenance water is used to maintain the panel concrete 13 through the main water pipe 10 and the maintenance flower pipe 12; repeat steps (a) to (c) for wireless intelligent temperature control and maintenance of the long slope panel concrete.

Step (a) also includes collecting ambient temperature data, and comparing the ambient temperature data, the internal and external temperature data of the panel concrete 13, and the water temperature data in the maintenance water tank 8 to determine whether the maintenance process is normally performed.

The collection of ambient temperature data, internal and external temperature data of the panel concrete 13, and water temperature data in the curing water tank 8 adopts a multi-point collection method, and the required data is obtained by averaging multiple data of each temperature. In order to further realize intelligent temperature control, the data collection of temperature probe 5 is real-time. Generally, the collection frequency of 1min can be set to realize the real-time and accuracy of data. Through system control, the purpose of wireless intelligent temperature control of panel concrete can be realized.

Claims (10)

1. A long-slope face panel concrete wireless intelligent temperature control and maintenance system, characterized in that it comprises a maintenance water tank (8), a main water pipe (10), and a maintenance flower tube (12) connected in sequence, and the maintenance flower tube (12) is provided with Above the panel concrete (13); the main water pipe (10) is provided with an electromagnetic flow valve (11), and the electromagnetic flow valve (11) is connected to the computer (1); the maintenance water tank is provided with an electric heater (9), an electric heater (9) Connect the computer (1) through the electromagnetic relay (6); at least one temperature probe (5) is provided inside and on the surface of the maintenance water tank (8), the surrounding environment, and the panel concrete (13); the temperature probe (5) passes the temperature The probe pin (4) is connected to the wireless temperature monitoring module (3) to collect temperature data; the wireless temperature monitoring module (3) communicates with the wireless receiving module (2) connected to the computer (1). 2. A wireless intelligent temperature control and maintenance system for long-slope panel concrete according to claim 1, characterized in that a knife (7) is further provided between the electric heater (9) and the electromagnetic relay (6). . 3. The long-slope face concrete wireless intelligent temperature control and maintenance system according to claim 1, wherein the maintenance flower tube (12) is provided with a ball valve at the connection with the main water pipe (10); The pipe (12) is evenly provided with a plurality of water outlets at the upper part of the face plate concrete (13). The wireless intelligent temperature control and maintenance system for long-slope panel concrete according to claim 1, characterized in that the temperature probe pin (4) is connected between the temperature probe (5) and the wireless temperature monitoring module (3) When the distance is less than or equal to 50m, use ordinary three-core wire; when it is greater than 50m, use 3/6/9-core shielded wire. 5 . The wireless intelligent temperature control and maintenance system for long-slope panel concrete according to claim 1 , wherein the temperature probe ( 5 ) adopts a thermal resistance type, and the temperature measurement range is -50~200° C. 5 . The accuracy is ±0.5°C, and it is packaged in a stainless steel shell. Its three pin lines are the positive, negative and signal source lines of the power supply. 6 . The wireless intelligent temperature control and maintenance system for long slope face panel concrete according to claim 1 , wherein the wireless temperature monitoring module ( 3 ) works based on an industrial MODBUS-RTU protocol. 7 . 7 . The wireless intelligent temperature control and maintenance system for long-slope panel concrete according to claim 1 , wherein a liquid level gauge is provided in the maintenance water tank ( 8 ). 8 . 8. A wireless intelligent temperature control and maintenance method for long-slope face panel concrete, characterized in that it comprises the following steps: (a), collect the internal and external temperature data of the panel concrete (13) and the water temperature data in the curing water tank (8); (b) Determine whether the temperature difference between the inside and outside of the panel concrete (13) exceeds the standard through the preset value. When the temperature difference exceeds the standard, close the electromagnetic flow valve (11) to stop the supply of maintenance water, and the electromagnetic relay (6) is closed to start the maintenance water tank (8). The electric heater (9) heats the maintenance water; when the maintenance water temperature does not meet the demand, it continues to heat the maintenance water, and continues to step (c) when the demand is met; (c), open the electromagnetic flow valve (11), and the maintenance water is used to maintain the panel concrete (13) through the main water pipe (10) and the maintenance flower pipe (12); repeat steps (a) to (c) to complete the long slope panel Concrete wireless intelligent temperature control maintenance. 9. A wireless intelligent temperature control and maintenance method for long-slope panel concrete according to claim 8, characterized in that the step (a) further comprises collecting ambient temperature data, comparing the ambient temperature data and the panel concrete (13) The internal and external temperature data and the water temperature data in the maintenance water tank (8) are used to judge whether the maintenance process is carried out normally. 10. The wireless intelligent temperature control and maintenance method for long-slope panel concrete according to claim 9, characterized in that the ambient temperature data, the internal and external temperature data of the panel concrete (13), and the water temperature data in the curing water tank (8) The acquisition of the multi-point acquisition method is adopted, and the required data is obtained by averaging multiple data of each temperature.

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