Concrete cooling water remote control system

Abstract

The concrete cooling water remote control system comprises a wireless temperature acquisition device, a water changing device and an electric control device, the wireless temperature acquisition device comprises a temperature probe, a signal transmitter and a signal receiver; the signal transmitter uploads temperature data collected by the temperature probe to the signal receiver, and the signal receiver uploads the temperature data to the cloud platform; the water changing device comprises a water temperature adjusting water tank, a water supply pump P1, a drainage pump P2 and a water inlet pump P3, the water supply pump P1 and the drainage pump P2 are placed in the water temperature adjusting water tank, and the water inlet pump P3 is placed in a low-temperature water body; the water supply pump P1 is connected with a cooling water inlet main pipe, the water temperature adjusting water tank is connected with a water outlet main pipe, and the water supply pump P1, the drainage pump P2 and the water inlet pump P3 are all connected with an electric control device. The system disclosed by the utility model controls the start and stop of the water pump in the water changing device in real time by combining a temperature measured value acquired in the large-volume pumping concrete pouring bin, so that the purposes of intelligently monitoring the temperature in the concrete and remotely regulating and controlling water supply are realized.

Description

Technical Field

[0001] This utility model relates to the field of concrete cooling water control technology, specifically to a remote control system for concrete cooling water. Background Technology

[0002] Practice has shown that temperature control and crack prevention in large-volume concrete is a complex systems engineering problem during construction, making it a crucial issue. It is well known that pumped concrete is commonly used in pumping stations, sluice gates, and ship locks. Due to the rapid temperature rise and hydration heat of pumped concrete, the peak temperature of these concrete structures often exceeds 50℃, sometimes even reaching 70℃. To control the maximum temperature of the pouring chamber, low-temperature water cooling is commonly used. However, water cooling is a double-edged sword; while it can quickly lower the temperature, excessively rapid cooling can still easily cause concrete cracking. Therefore, the "Technical Specification for Temperature Measurement and Control of Large-Volume Concrete" (GB / T 51028-2015) stipulates that the difference between the inlet water temperature and the maximum concrete temperature should be controlled at 15~25℃.

[0003] As mentioned earlier, since the peak temperature of large-volume pumped concrete often exceeds 50℃ or even reaches 70℃, when using water cooling, the inlet water temperature must be adjusted in a timely manner based on the current measured temperature of the pouring chamber and the difference between the specified inlet water temperature and the maximum concrete temperature (15~25℃). For example, initially, when the maximum concrete temperature is below 30℃, the inlet water temperature can be below 15℃; later, when the maximum concrete temperature reaches above 60℃, the inlet water temperature should be above 35℃. Practice shows that using self-circulating water is an economical and effective water temperature control measure. As the hydration heat rises, the heat carried by the cooling water is used to increase the water temperature in the tank, thereby controlling the difference between the inlet water temperature and the maximum concrete temperature to meet the specifications. However, when using self-circulating water for cooling, the water temperature in the tank will gradually rise, causing the difference between the inlet water temperature and the maximum concrete temperature to gradually decrease, thus losing its cooling effect. Therefore, to achieve optimal cooling, it is necessary to combine the measured maximum temperature of the pouring chamber, the inlet water temperature, and the temperature difference between them, and promptly replace a portion of the water in the tank with a certain volume of low-temperature water to regulate the water temperature. To reasonably regulate the water temperature for concrete crack prevention, it is often necessary to assign dedicated personnel to manage the water cooling. Practice shows that manually regulating the water tank temperature is time-consuming and labor-intensive, especially at night, in the early morning, or during the midday heat, making on-site manual temperature control extremely inconvenient. Summary of the Invention

[0004] To overcome the problems of low efficiency and high workload in manually controlling cooling water for large-volume pumped concrete, this utility model provides a remote control system for concrete cooling water. The system includes a wireless temperature acquisition device for collecting the internal temperature of the pouring chamber, a water exchange device (water tank) for adjusting the water temperature, and a remote control device for controlling the water exchange. By combining the measured temperature values ​​collected inside the large-volume pumped concrete pouring chamber, the system controls the start and stop of the water pump in the water exchange device in real time, thereby achieving intelligent monitoring of the internal temperature of the concrete and remote control of the water supply scheme.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A remote control system for concrete cooling water, the system comprising:

[0007] Wireless temperature acquisition device, water exchange device, and electrical control device;

[0008] The wireless temperature acquisition device includes a temperature probe, a signal transmitter, and a signal receiver;

[0009] The signal transmitter uploads the temperature data collected by the temperature probe to the signal receiver, and the signal receiver uploads the temperature data to the cloud platform so as to understand the internal temperature of the concrete in real time.

[0010] The water exchange device includes a water temperature regulating tank, a water supply pump P1, a drainage pump P2, and an inlet pump P3. The water supply pump P1 and the drainage pump P2 are placed inside the water temperature regulating tank, and the inlet pump P3 is placed in a low-temperature water body such as a well or river.

[0011] Water pump P1 is connected to the cooling water inlet main pipe, and the water temperature regulating tank is connected to the outlet main pipe.

[0012] Water supply pump P1, drainage pump P2, and inlet pump P3 are all connected to the electrical control device.

[0013] The electrical control device includes a housing and component modules installed inside the housing. A mounting plate is provided at the bottom of the housing, and multiple support frames are provided in the middle and at the top of the mounting plate.

[0014] In the component modules at the top of the mounting plate, the 24V switching power supply module and the RS485 circuit breaker are fixed to the first support frame by the first buckle on their back, and the 4G communication module and the grounding terminal are fixed to the mounting plate by the first screw.

[0015] In the component module in the middle of the mounting plate, the relay and relay I / O module are fixed to the second support frame by the second buckle on the back of the device, and the frequency converter is fixed to the mounting plate by the second screw.

[0016] The bottom of the mounting plate, except for the grounding terminal, has the first and second terminals fixed to it by the third and fourth screws, respectively.

[0017] The first support frame of the mounting plate is provided with a first guide rail plug and a second guide rail plug;

[0018] The second support frame of the mounting plate is equipped with a third guide rail plug and a fourth guide rail plug.

[0019] The guide rail plugs are respectively installed on the left and right sides of each component module to reinforce the component modules installed on the support frame.

[0020] The component modules on the mounting plate are divided into high-voltage and low-voltage components and installed on the upper and lower sides of the mounting plate respectively.

[0021] The top of the enclosure is an open design, with a door that can be opened and closed flexibly. Openings are provided at both the top and bottom of the enclosure to facilitate a secure connection to external three-phase power and motor wiring, and to ensure effective heat dissipation from the interior.

[0022] This utility model discloses a remote control system for concrete cooling water, with the following technical advantages:

[0023] 1) By placing all component modules on a single mounting plate, the structure becomes more compact. Guide rail plugs are installed on the mounting plate support frame to reinforce the components on the support frame, prevent loosening, and ensure the stability of component module installation.

[0024] 2) When it is necessary to inspect the electrical control box, the guide rail plugs can be loosened directly to remove the components, making it convenient for maintenance personnel to carry out the inspection.

[0025] 3) The component modules are installed on the upper and lower sides of the mounting plate according to the strong and weak current, so as to reduce interference and ensure the stable operation of the electrical control box.

[0026] 4) The top and bottom ends of the box have openings, which facilitates secure wiring to external three-phase power and motors, and also helps dissipate internal heat, ensuring the normal working environment of the electrical control box.

[0027] 5) The control system of this utility model can quickly obtain the highest internal temperature of the concrete and remotely control the water pump in the water exchange device using a stable transmission electrical control device, thereby improving the efficiency of remote control of water cooling for large-volume pumped concrete. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and examples;

[0029] Figure 1 This is a schematic diagram of the overall structure of the electronic control device of this utility model;

[0030] Figure 2 This is a schematic diagram of the mounting plate of this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the 4G module antenna of this utility model;

[0032] Figure 4 This is a structural schematic diagram of the support frame of this utility model;

[0033] Figure 5 This is a schematic diagram of the guide rail plug of this utility model.

[0034] Figure 6 This is a schematic diagram of the overall structure of the wireless temperature acquisition device of this utility model;

[0035] Figure 7 This is a schematic diagram of the overall water exchange device of this utility model.

[0036] The components are as follows: 1-24V switching power supply module, 2-RS485 circuit breaker, 3-4G communication module, 4-grounding terminal, 5-mounting plate, 6-frequency converter, 7-relay, 8-first terminal block, 9-box, 10-second terminal block, 11-relay IO module, 12-box door, 13-second guide rail plug, 14-fourth guide rail plug, 15-third guide rail plug, 16-first support frame, 17-first guide rail plug, 18-4G module antenna, 19-cooling water pipe area, 20-water well, 21-main power line, 22-water pump power line, 23-wiring opening, 24-heat dissipation opening, 25-reinforcing steel bar, 26-temperature probe, 27-signal transmitter, 28-signal receiver, 29-water temperature regulating tank, 30-cooling water inlet main pipe, 31-outlet main pipe, P1-water supply pump, P2-drainage pump, P3-inlet pump. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0038] This utility model relates to a remote control system for concrete cooling water. The working principle is as follows:

[0039] The first step is to select a typical location in the pouring chamber where temperature control of large-volume concrete is required, install a temperature probe 26, connect and turn on the signal transmitter 27, and ensure smooth and stable signal transmission between the signal transmitter 27 and the signal receiver 28.

[0040] The second step is to connect the water supply pump P1 to the cooling water inlet main pipe 30, and place the water supply pump P1 and the drain pump P2 in the water temperature regulating tank 29 (5m). 3Place the inlet pump P3 in the low-temperature water body and place the water exchange device at a suitable elevation to ensure that the water supply pump P1 operates normally.

[0041] The third step is to connect the drain pump P2 and water supply pump P1 in the water exchange device to the electrical control device, fix the electrical control device in a nearby location, and take measures to prevent rain and moisture.

[0042] The fourth step is to connect the electronic control device to the Peanut Shell software platform on the computer to obtain the current water temperature and adjust the water temperature of the water tank to 29. Then, combined with the temperature data on the cloud platform, the temperature control command is issued as needed: drain water or extract low-temperature water.

[0043] Fifth, after the temperature control of this batch of large-volume concrete is completed, remove the electrical control device and store it properly so that it can be used in the water supply control of the next batch of large-volume concrete.

[0044] The features of this utility model of a remote control system for concrete cooling water are as follows:

[0045] 1. Real-time monitoring of the internal temperature of concrete via wireless temperature acquisition devices and remote control of water exchange devices (such as water pump start-up and shutdown) significantly reduces workload, especially solving the problem of inconvenient on-site control at night or during high-temperature periods.

[0046] 2. The control strategy of combining self-circulating water heating and low-temperature water replacement is adopted, which not only meets the standard temperature difference (15~25℃) requirements, but also significantly improves the water cooling efficiency.

[0047] 3. The electrical control unit adopts a layered mounting plate design, with separate layouts for high-voltage and low-voltage modules, which helps reduce signal interference. The top and bottom openings of the enclosure ensure both heat dissipation and ease of external wiring.

[0048] 4. The electrical control device and the water exchange device are easily disassembled and separated, and can be repeatedly applied to different concrete pouring chambers.

[0049] This utility model discloses a remote control system for concrete cooling water, which can be used not only in large-volume concrete cooling systems, but also extended to any scenario that requires dynamic adjustment of fluid (water / liquid) temperature or flow rate, such as agriculture (adjusting irrigation water temperature) and industrial production (temperature control of chemical reactors).

Claims

1. A remote control system for concrete cooling water, characterized in that: The system includes: Wireless temperature acquisition device, water exchange device, and electrical control device; The wireless temperature acquisition device includes a temperature probe (26), a signal transmitter (27), and a signal receiver (28). The signal transmitter (27) uploads the temperature data collected by the temperature probe (26) to the signal receiver (28), and the signal receiver (28) uploads the temperature data to the cloud platform; The water exchange device includes a water temperature regulating tank (29), a water supply pump (P1), a drainage pump (P2), and an inlet pump (P3). The water supply pump (P1) and the drainage pump (P2) are placed inside the water temperature regulating tank (29), and the inlet pump (P3) is placed in the low-temperature water body. The water supply pump (P1) is connected to the cooling water inlet main pipe (30), and the water temperature regulating tank (29) is connected to the water outlet main pipe (31). The water supply pump (P1), drainage pump (P2), and inlet pump (P3) are all connected to the electrical control device.

2. The remote control system for concrete cooling water according to claim 1, characterized in that: The electronic control device includes a housing (9) and a component module disposed inside the housing (9). The bottom of the housing (9) is provided with a mounting plate (5), and multiple support frames are provided in the middle and top of the mounting plate (5).

3. The remote control system for concrete cooling water according to claim 2, characterized in that: In the component module at the top of the mounting plate (5), the 24V switching power supply module (1) and the RS485 circuit breaker (2) are fixed to the first support frame (16) by the first buckle on their backs, and the 4G communication module (3) and the grounding terminal (4) are fixed to the mounting plate (5) by the first screw.

4. The remote control system for concrete cooling water according to claim 3, characterized in that: In the component module in the middle of the mounting plate (5), the relay (7) and the relay IO module (11) are fixed on the second support frame by the second buckle on the back of the device, and the frequency converter (6) is fixed on the mounting plate (5) by the second screw.

5. The remote control system for concrete cooling water according to claim 3, characterized in that: At the bottom of the mounting plate (5), the first terminal (8) and the second terminal (10), except for the grounding terminal (4), are fixed to the mounting plate (5) by the third and fourth screws, respectively.

6. The remote control system for concrete cooling water according to claim 3, characterized in that: The first support frame (16) of the mounting plate (5) is provided with a first guide rail plug (17) and a second guide rail plug (13).

7. The remote control system for concrete cooling water according to claim 4, characterized in that: The second support frame of the mounting plate (5) is provided with a third guide rail plug (15) and a fourth guide rail plug (14).

8. A remote control system for concrete cooling water according to claim 6 or 7, characterized in that: The guide rail plugs are respectively installed on the left and right sides of each component module to reinforce the component modules installed on the support frame.

9. The remote control system for concrete cooling water according to claim 2, characterized in that: The component modules on the mounting plate (5) are divided into high-voltage and low-voltage components and installed on the upper and lower sides of the mounting plate (5) respectively.

10. The remote control system for concrete cooling water according to claim 2, characterized in that: The top of the box (9) is an open design, and a door (12) that can be opened and closed flexibly is installed on it. Openings are provided at both the top and bottom ends of the box (9).

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