TWI611074B - Energy-saving control method and system for groundwater level of construction engineering drowning project - Google Patents

Description

Energy-saving control method and system for groundwater level of construction engineering drowning project

The invention relates to a construction project, in particular to an energy-saving control technology for a groundwater level of a construction engineering drowning project.

Regarding groundwater treatment (ie, drowning works) for construction projects, many construction methods have been developed so far, and they are all applied to actual projects. In terms of their treatment methods, they are broadly classified into "water table reduction method" and "groundwater." The water stop method is divided into two categories. Among them, the groundwater level reduction method can distinguish between the “gravity drainage method” and the “forced drainage method” according to the different ways of groundwater accumulation. As far as the "gravity drainage method" is concerned, it is the natural infiltration of groundwater generated by the gravity of the groundwater itself. The groundwater drainage method of the assembly is more representative of the "water collection well drainage method" and "deep well (Deep-well). "Working method", etc., such a method must be used in the conditions of better water permeability to improve the drainage effect.

Due to the recent deepening of the excavation of the underground layer, in order to prevent the disaster caused by the "pressed groundwater" and achieve the purpose of safe excavation work, the deep well method is widely adopted and very effective in the well-permeable structure. When the excavation surface is deep and below the groundwater level, this method can be used to reduce the groundwater below the excavation surface and then excavate.

The most advantageous point of the "deep well method" is that the amount of water pumped by a single well is quite large. Depending on the depth of pumping (head), it can be decided to use a submersible pump, a vacuum pump or a high-lift pump to pump water. When using a high-lift pump, The groundwater in the deep aquifer can be pumped up.

Referring to FIG. 13 , the traditional deep well method drainage project 7 runs through the underground building 6 and has a suction pipe 71 therein, and a sink pump 8 is connected to the bottom of the suction pipe 71 to pump water, and then is manually discharged. Carrying the measuring tool to perform the water level observation operation, the control system 9 uses the manual switch to power the submersible water pump 8 to achieve the start/stop control, as shown in FIG.

However, during the construction of the construction project, the groundwater level cannot be effectively controlled by the traditional drowning power control method. To ensure smooth construction, the submersible pump 8 of the pumping well 7 is fully loaded with water, and the groundwater level 62 is often over-extracted below the excavation. There are many faces 61, so not only the waste of water resources, but also the relative increase in power demand and cost. Therefore, how to provide a system that balances energy conservation and groundwater level control has become one of the problems that researchers have to solve.

In view of the problem of the control method of the groundwater level of the traditional construction engineering drowning engineering, the inventor then exhausted the creation of the energy-saving control of the groundwater level of the construction engineering drowning engineering of the present invention, so the main purpose of the present invention is to provide no over-extraction. Energy-saving control of groundwater level in the construction project of groundwater; the secondary purpose of the present invention is to provide energy-saving control of water-saving groundwater level in a water-saving and water-saving construction project at the same time; another object of the present invention is to provide: a site that can be secured Construction safety construction control of the water level of the dredging project.

In order to achieve the above object, the energy-saving control method for the groundwater level of the dredging engineering of the construction project of the present invention uses the following technical means: an underground excavation step is a project for digging a pit into the ground; a construction engineering step is to construct an underground building In the pit, a multi-storey underground building is formed; a pumping well construction step, at least one pumping well penetrates the underground building of the multi-storey building and penetrates into the groundwater, and a pumping pipe is arranged in the pumping well. A pumping module is connected to the pumping pipe, and a sensor module is arranged The group and the energy-saving control construction step electrically connect the pumping module and the sensor module to a control system.

The energy-saving control method for the groundwater level of the dredging engineering of the construction project is applicable to the basic excavation work method or the basic excavation reverse work method.

In addition, the present invention relates to an energy-saving control method for a groundwater level of a construction engineering drowning project, which comprises: at least one pumping module connected to a submerged end of a pumping pipe in a corresponding pumping well, and coupled to a power switching mode a group to receive a power to start/stop pumping; at least one sensor module is installed in the corresponding pumping well and electrically connected to the control system; and a control system is the pumping module, the sense The detector module is coupled to an energy-saving control module provided by the control system.

The energy-saving control method and system for the groundwater level of the dredging engineering of the above-mentioned construction project, wherein a frequency converter module is coupled to the energy-saving control module and a power switching module, and the pumping module is coupled to the power switching The module is electrically connected to the alternating current and a data collection and analysis module, and the data collection and analysis module is electrically connected to the energy-saving control module.

A power conversion module is provided in the energy-saving control module to provide a power supply for the signal detection module, an operation processing module and a signal generation module; and the signal detection module The group is coupled to the sensor module, the frequency converter module, the arithmetic processing module, and the detection module of the sensor module and the inverter module is provided with the operation processing module; and the operation processing module is The signal is coupled to the signal detection module, the signal generation module, the data collection and analysis module, and the signal detection module provided by the signal detection module is processed and processed, and then the signal generation module is adjusted or controlled. The signal output, the sensor module and the inverter module status detection signal are provided to the data collection and analysis module; and the signal generation module is coupled to the operation processing module, the inverter module, and the power switching The module is controlled by the arithmetic processing module, and provides power supply control signals for the inverter module, and then connected The operation processing module controls the AC power supply of the power switching module or the power output switching of the inverter module.

The power switching module further includes a mains mode and a power mode; the mains mode means that the power switching module supplies power to the pumping module for pumping; the power saving mode is the power switching module The output power of the inverter module is coupled to the power supply to the pumping module for pumping.

As described above, in the power saving mode, a groundwater level control value is set before the operation processing module of the energy saving control module, and the signal detecting module detects the sensor module instant detection signal and provides After the calculation processing module is compared with the original set groundwater level control value, the arithmetic processing module generates a frequency converter module control signal through the signal generation module, thereby changing the voltage of the output power of the inverter module. , current or frequency, the water switching module adjusts the pumping amount of the pumping module, and the groundwater level can be stabilized to control the water level value to be controlled.

The method and system of the present invention described above are provided with an automatic power switching protection function. When the signal detecting module of the energy saving control module detects the fault state signal of the inverter module, after the operation processing module checks The arithmetic processing module automatically switches the power switching module to the mains mode operation through the signal generating module, and when the energy saving control module fails, the power switching module is automatically switched to The utility model operates to allow the pumping module to perform pumping operations in the mains mode and reduce the groundwater level to ensure construction site safety.

The invention can achieve the following effects by the above technical means:

1. In the construction of the dredging engineering of the construction project, the sensor module can detect the current groundwater level, and then adjust the power of the pumping module to achieve proper control of the water table, which is beneficial to the project. And the initial stage of the project does not exceed the groundwater resources.

2. According to the construction progress of the building, the invention can appropriately adjust the pumping amount by means of frequency conversion. In other words, depending on how deep the excavation surface of the pit is, the groundwater to be pumped can make the water surface slightly lower than the excavation surface. The invention has the effects of energy saving and water saving at the same time.

3. The invention can detect the fault state of the inverter module or the arithmetic processing module, and the power switching module automatically switches to the mains mode operation, so that the pumping module is in the mains mode to perform pumping operations to reduce The groundwater level will ensure the safety of the construction site.

[this invention]

A‧‧‧Energy-saving control method for groundwater level in the drowning project

a, b, c, d‧‧‧ steps

B‧‧‧Energy-saving control system for groundwater level in the drowning project

1‧‧‧ pumping well

11‧‧‧Water pipes

12‧‧‧ pumping module

13‧‧‧Sensor module

2‧‧‧Control system

21‧‧‧Energy-saving control module

211‧‧‧Signal Detection Module

212‧‧‧Operation Processing Module

213‧‧‧Signal generation module

214‧‧‧Power Conversion Module

22‧‧‧Inverter Module

23‧‧‧Power Switching Module

24‧‧‧Electrical Module

25‧‧‧ Data Collection and Analysis Module

3‧‧‧Underground building

30‧‧‧ pit

301‧‧‧Excavation surface

31‧‧‧Retaining wall

32‧‧‧筏 grassroots

4‧‧‧ Groundwater

41‧‧‧ water surface

[traditional]

6‧‧‧Underground building

61‧‧‧Excavation surface

62‧‧‧water table

7‧‧‧ pumping well

8‧‧‧Sink pump

9‧‧‧Control system

Figure 1: Control flow chart of the energy-saving control method for the groundwater level of the construction engineering dredging project of the present invention.

Fig. 2 is a schematic cross-sectional view showing the opening of the pumping well of the construction engineering dredging project of the present invention.

Figure 3: Schematic diagram of the energy-saving control system for reducing the groundwater level in the construction engineering dredging project of the present invention.

Figure 4 is a schematic diagram of the architecture of the energy-saving control module of the present invention.

Fig. 5: An improved comparison diagram of the present invention and the conventional method applied to the foundation excavation of the drowning engineering.

Figure 6: An improved comparison diagram of the present invention and the conventional method applied to the foundation excavation of the drowning engineering.

Fig. 7 is a comparison diagram of the improvement of the basic excavation method of the dredging engineering according to the present invention and the conventional method.

Fig. 8 is an improved comparison diagram of the present invention and the conventional method applied to the foundation excavation of the drowning engineering.

Fig. 9 is a comparison diagram of the improvement of the present invention and the conventional method applied to the excavation reverse working method of the dredging engineering.

Figure 10: An improved comparison diagram of the present invention and the conventional method applied to the foundation excavation reverse working method of the drowning engineering.

Fig. 11 is a comparison diagram of the improvement of the present invention and the conventional method applied to the foundation excavation reverse working method of the drowning engineering.

Figure 12: Improved comparison diagram of the present invention and the conventional method applied to the foundation excavation reverse working method of the drowning engineering.

Figure 13: Schematic diagram of the opening of the traditional construction engineering dredging project.

Figure 14: Schematic diagram of power control for traditional building engineering drowning projects.

First, please refer to FIG. 1 and FIG. 2, the present invention relates to an energy-saving control method and system for a groundwater level of a construction engineering drowning project, wherein the water-saving control method A of the groundwater level of the drowning project includes: an underground The excavation step (a) is for excavating the dimple 30 into the ground; a construction project step (b) is to construct the under-floor building 3 in the dimple 30, thereby forming a multi-storey underground building 3; In the water well construction step (c), at least one pumping well 1 penetrates the underground building 3 of the multi-storey building and penetrates into the groundwater, and a pumping pipe 11 is arranged in the pumping well 1 , and a pumping module is connected to the pumping pipe 11 12, and a sensor module 13; and an energy-saving control construction step (d), the water pumping module 12, the sensor module 13 is electrically connected to a control system 2, in particular, The control system 2 includes an energy saving control module 21 (Fig. 3).

The above-mentioned energy-saving control method A for the groundwater level of the dredging project of the construction project can be applied to the basic excavation work method or the basic excavation reverse work method.

According to the above-mentioned steps, as shown in FIG. 2, when the construction engineering dredging operation is performed, the current module is detected by the sensor module 13, and then the power of the pumping module 12 is adjusted. Appropriate control of the groundwater level is conducive to the project, and does not exceed the pumping of groundwater and achieve energy-saving effect; in other words, in the operation of the underground building 3, the depth of the excavation surface of the pit 30 is considered to be extracted. The groundwater allows the water surface 41 to be slightly lower than the excavation surface 301, and then the control system 2 is provided, the groundwater level is viewed, and the energy-saving control module 21 is matched with the frequency conversion method, and the pumping module 12 is appropriately controlled. The pumping amount allows the invention to have both energy saving and water saving effects.

In addition, referring to FIG. 2 to FIG. 4, the energy-saving control system B of the groundwater level of the drowning engineering of the present invention is an energy-saving control method A for using the aforementioned groundwater level of the drowning project, which comprises: at least one pumping module 12. At least one sensor module 13 and a control system 2; wherein The pumping module 12, as shown in FIG. 2, is connected to the submerged end of the pumping pipe 11 in the corresponding pumping well 1, and is coupled to the power switching module to receive an electric power to start/stop pumping, wherein The pumping module 12 is a submersible pump; the sensor module 13, as shown in FIG. 2 and FIG. 3, is installed in the corresponding pumping well 1 and is electrically connected to the control system 2, which has sensing The function of the groundwater level; and the control system 2, as shown in FIG. 3, further includes: at least one power switching module 23, at least one inverter module 22, at least one meter module 24, at least one data collection and analysis module The group 25 and the at least one energy-saving control module 21; wherein, the power switching module 23, as shown in FIG. 3, is coupled to the mains and the inverter module 22, and performs a mains or inverter module on the pumping module 12. The power supply is switched, and the energy-saving control module 21 is received, and the power supply or the inverter module 22 is controlled to supply power to the pumping module 12; the inverter module 22 is coupled as shown in FIG. 3 and FIG. The energy-saving control module 21 outputs power to the power switching module 23 and is accepted by the section The signal generating module 213 of the control module 21 controls the output power adjustment of the inverter module 22, and provides the status signal of the inverter module 22 to the signal detecting module 211 of the energy saving control module 21; The meter module 24, as shown in FIG. 3, is coupled to the mains AC power line, measures the power consumption of the system of the present invention, and provides the data to the data collection and analysis module 25; the data collection and analysis module 25, such as As shown in FIG. 3 and FIG. 4, the arithmetic processing module 212 of the power meter module 24 and the energy-saving control module 21 is coupled, and the data of the meter module 24 is received and processed by the energy-saving control module 21. The module 212 provides status signal detection information of the sensor module 13 and the inverter module 22; As shown in FIG. 3 and FIG. 4, the energy-saving control module 21 is provided with a power conversion module 214 disposed in the energy-saving control module 21, and the utility model can provide a signal detection module 211 and a signal generator. The operation processing module 212 and the signal generation module 213 are required to be powered; and the signal detection module 211 is coupled to the sensor module 13, the inverter module 22, and the operation processing module 212, and the The operation module 212 is provided by the sensor module 13 and the inverter module 22, and the operation processing module 212 is coupled to the signal detection module 211, the signal generation module 213, and the data collection. The analysis module 25 is configured to receive the detection signal provided by the signal detection module 211, and then adjust or control the signal output of the signal generation module 213 after the operation processing, and then provide the sensor module 13 And the inverter module 22 state detection signal is sent to the data collection and analysis module 25; the signal generation module 213 is coupled to the operation processing module 212, the inverter module 22, and the power switching module 23, and is accepted. The arithmetic processing module 212 controls and provides power adjustment to the inverter module 22 The control signal is controlled by the arithmetic processing module 212, and the power switching module 23 performs AC mains power or the inverter module 22 power output switching.

Referring to FIG. 3 to FIG. 4, when the present invention is used, the power switching module 23 is used as a mains mode or a power saving mode; wherein the mains mode is that the power switching module 23 supplies power to the mains coupling. The pumping module 12 draws water; and the power saving mode is that the power switching module 23 supplies the power supply coupling power of the inverter module 22 to the pumping module 12 for pumping.

Referring to FIG. 3 to FIG. 4, in the power saving mode, a groundwater level control value is set before the operation processing module 212 of the energy saving control module 21, and the signal detecting module 211 detects the sensing. The module module 13 immediately detects the signal, and after the calculation processing module 212 is compared with the original set groundwater level control value, the operation processing module 212 generates a frequency converter module 22 via the signal generation module 213. Signal, changing the voltage, current or frequency of the output power of the inverter module 22, and switching by the power The module 23 adjusts the pumping amount of the pumping module 12, so that the water table can be stabilized to control the water level value to be controlled.

In particular, the system of the present invention also has an automatic power switching protection function. As shown in FIG. 4, when the internal signal detecting module 211 of the energy saving control module 21 detects the fault state signal of the inverter module 22, After the operation processing module 212 is checked, the operation processing module 212 transmits the power switching module 23 to the mains mode operation through the signal generation module 213, and when the energy saving control module 21 fails. At the same time, the power switching module 23 is automatically switched to the mains mode operation, so that the pumping module 12 of the Surabaya project performs the pumping operation in the unpowered mains mode to reduce the groundwater level to ensure the safety of the construction site.

The invention adjusts the groundwater level control value according to the safety value of the groundwater level of the construction progress of the construction project, and proves that the excessive over-extraction of the groundwater resources of the construction project can be reduced by the example, and the power demand of the drowning engineering is reduced, and the power saving rate of the electric power is more than 35%, CO2 Reduced by more than 5000Kg.

The invention analyzes by example, a building engineering drowning engineering frame measures 720 hours, uses 50HP (37KW) as a shelf test submersible water pump, mains electricity and power saving records, and the statistical conversion results are as follows:

In addition, the system of the present invention can be applied to the foundation excavation work method (Fig. 5 to Fig. 8) or the basic excavation reverse work method (Fig. 9 to Fig. 12), and the traditional drowning project is used together for water saving and energy saving. The improvement comparison is described as follows:

Please refer to FIG. 5 to FIG. 8 , which is an embodiment of the comparison between the system of the present invention and a conventional series of basic excavation methods.

As shown in FIG. 5, when constructing the retaining wall 31, the drowning project of the present invention automatically measures the groundwater level with the sensor module, and automatically adjusts the power supply of the pumping module 12. According to the progress of excavation, the safe water level required for construction is controlled to reduce the groundwater pumping in the initial stage of the project. In contrast, the traditional dredging project is to directly pump groundwater to the pumping well 1 to its project progress level with its full pumping module 12 Water level is required, and the water level measurement is performed periodically by manpower.

As shown in FIG. 6, when the retaining wall 31 performs the raft base 32 project, the drowning project of the present invention can accurately control the groundwater level to a safe water level under the raft base 33, thereby reducing groundwater super-drainage; The groundwater must be pumped to the lowest water level of the pumping well 1 with its pumping module 12 fully loaded.

As shown in Fig. 7, when performing the subsurface engineering, the drowning project of the present invention continuously and accurately controls the safe water level of the groundwater level under the basement layer 32 to reduce groundwater super-extraction; in contrast, the conventional reclaimed water project still maintains the pumping well. The lowest water level of 1.

As shown in Figure 8, when the local subsurface project is completed, the drowning project of the present invention continuously and accurately controls the safe water level of the groundwater level at the basement layer 32 to reduce groundwater super-extraction; in contrast, the traditional drowning project will partially pump water as the case may be. The module 12 is closed to raise the groundwater, and the ground water level measurement is performed manually, and the groundwater is located at a safe water level below the base layer 32. When the water level is higher than the safe water level, the pumping module 12 is turned on to perform pumping. Reducing groundwater super-extraction is very cumbersome.

Referring to FIG. 9 to FIG. 12, it is an embodiment of the comparison between the system of the present invention and a conventional series of basic excavation reverse working methods.

As shown in FIG. 9, when constructing the retaining wall 33, the water-repellent project of the present invention cooperates with the sensor module 13 to automatically measure the groundwater level, and automatically adjusts the supply of the pumping module 12 by the control system 2. Force, according to the excavation schedule to control the safe water level required for construction, reduce the groundwater pumping in the initial stage of construction; in contrast, the traditional drowning project performs pumping with part of the pumping module 12, and still performs the water level measurement manually. Controlled by a safe water level that can be constructed.

As shown in FIG. 10, when performing the subsurface engineering, the drowning project of the present invention continuously adopts the automatic measurement of the water level, and the control system 2 automatically adjusts the supply power of the pumping module 12 to control the groundwater below the construction site. A safe water level is required to reduce groundwater pumping. On the other hand, the traditional drowning project still performs pumping with some pumping modules 12 and performs water level measurement by manpower to control the safe water level.

As shown in Fig. 11 and Fig. 12, when the project continues to be executed, the drowning project of the present invention continuously adopts automatic measurement of the water level, automatically adjusts the supply power of the pumping module 12, adjusts the safe water level required for construction according to the progress of the project, and reduces the groundwater. Super pumping; on the other hand, the traditional drowning project adds pumping module 12 pumping according to the construction schedule, and still performs the water level measurement by manpower, and controls the safe water level that can be constructed.

In summary, the present invention relates to an "energy-saving control method and system for groundwater level of a construction engineering drowning project", which can intelligently control the groundwater level according to the construction progress when carrying out the construction engineering drowning engineering operation, free of human resources. The measurement operation ensures the safety of the construction site. In addition to preserving the precious groundwater resources, it has significant effects of saving electricity and reducing emissions. Its structure has not been seen in various books or publicly used. It is in line with the requirements of patent applications, and it is requested to obtain patents as soon as possible. As for the praying; the need to be clear, the above is the specific embodiment of the patent application and the technical principles applied, if the changes made according to the concept of this patent application, the functional role is still not Except for the spirit of the manual and the illustrations, it shall be incorporated into Chen Ming within the scope of this patent application.

A‧‧‧Energy-saving control method for groundwater level in the drowning project

a, b, c, d‧‧‧ steps

Claims (10)

An energy-saving control method for groundwater level in a dredging project of a construction project includes: an underground excavation step for excavating a pit into the ground; and a construction project step of constructing an underground building in the pit to form a a multi-storey underground building; a pumping well construction step, at least one pumping well penetrates the underground building of the multi-storey building and penetrates into the groundwater, and a pumping pipe is arranged in the pumping well, and a pumping module is connected to the pumping pipe And setting a sensor module; and an energy-saving control construction step, electrically connecting the water pumping module and the sensor module to a control system; and performing the construction engineering drowning engineering operation by the above steps At this time, through the sensor module, the current groundwater level can be detected, and the groundwater level can be properly controlled according to the progress of the construction project, so as to facilitate the project and save electricity, the power saving rate of the electric power is more than 35%, and it is not exceeded in the initial stage of the project. Pumping ground water. The energy-saving control method for the groundwater level of the construction engineering drowning project according to the first application of the patent application scope, wherein the control system further comprises an energy-saving control module, and the sensor module is coupled to the energy-saving control module, And an inverter module coupled to the energy-saving control module and a power switching module, wherein the pumping module is coupled to the power switching module; and an electric meter module is electrically connected to the AC mains and a data collection and analysis The module, the data collection and analysis module is electrically connected to the energy-saving control module. According to the energy-saving control method for the groundwater level of the construction engineering drowning project mentioned in the second paragraph of the patent application scope, wherein the power-saving control module is provided with a power conversion module to provide a signal detecting module for the mains alternating current conversion, An arithmetic processing module and a signal generating module require power; and the signal detecting module is coupled to the sensor module, the frequency converter module, the arithmetic processing module, and the sensor module And the operation module is provided by the detection module of the inverter module; and the operation processing module is coupled to the signal detection module, the signal generation module, the data collection and analysis module, and receives the signal detection module. After the operation, the detection signal provided by the group is adjusted or controlled to output the signal of the signal generation module, and then the sensor module and the inverter module status detection signal are provided to the data collection and analysis module. The signal generating module is coupled to the arithmetic processing module, the frequency converter module, and the power switching module, and is controlled by the arithmetic processing module, and provides a power supply control signal for the inverter module, and then The operation processing module is controlled to control the power switching module to perform AC mains power or the inverter module power output switching. The energy-saving control method for the groundwater level of the dredging project of the construction project according to the scope of the patent application No. 1, 2 or 3 is applicable to the basic excavation work method or the basic excavation reverse work method; in addition, the CO2 reduction is more than 5000Kg. An energy-saving control system for a groundwater level of a construction engineering drowning project includes: at least one pumping module connected to a submerged end of a pumping pipe in the corresponding pumping well, and coupled to the power switching module for receiving a power start/stop pumping; at least one sensor module is installed in the corresponding pumping well and electrically connected to the control system; and a control system is coupled to the pumping module and the sensor module Connected to an energy-saving control module set up by the control system; the above-mentioned components constitute an energy-saving control system for the groundwater level of the construction engineering drowning project, and according to the progress of the construction project, the current groundwater level can be detected through the sensor module, and then By adjusting the power of the pumping module to achieve proper control of the groundwater level, which is conducive to the project and saves electricity, the power saving rate of the power is more than 35%, and the groundwater is not pumped out in the early stage of the project. An energy-saving control system for a groundwater level of a construction engineering drowning project according to claim 5, wherein a frequency converter module is coupled to the energy-saving control module and a power switching module, and the pumping module is coupled The power switching module; and an electric meter module electrically connected to the alternating current and a data collection The analysis module, the data collection and analysis module is electrically connected to the energy-saving control module; in addition, the CO2 is reduced by more than 5000Kg. According to the energy-saving control system for the groundwater level of the construction engineering drowning project mentioned in the sixth paragraph of the patent application scope, a power conversion module provided in the energy-saving control module provides a signal detecting module and a signal detecting module for the mains alternating current conversion. The power processing module and the signal generating module require power; and the signal detecting module is coupled to the sensor module, the frequency converter module, the arithmetic processing module, and the sensor module and The operation module is provided by the detection module of the inverter module, and the operation processing module is coupled to the signal detection module, the signal generation module, the data collection and analysis module, and the signal detection module is accepted. After the processing signal is processed, the signal output of the signal generating module is adjusted or controlled, and the sensor module and the inverter module status detecting signal are provided to the data collecting and analyzing module; The signal generation module is coupled to the operation processing module, the frequency converter module, and the power switching module, and is controlled by the operation processing module, and provides a power supply adjustment control signal to the inverter module, and then accepts The arithmetic processing module controls the power switching module to perform AC mains power or the inverter module power output switching. The energy-saving control system for the groundwater level of the construction engineering drowning project according to the seventh aspect of the patent application scope, wherein the power switching module further comprises a mains mode and a power-saving mode; the mains mode is the power switch module The power supply mode is connected to the pumping module for pumping; the power saving mode means that the power switching module can couple the output power of the inverter module to the pumping module for pumping. According to the energy saving control system of the groundwater level of the construction engineering drowning project mentioned in the eighth application patent scope, in the power saving mode, a groundwater level control value is set before the operation processing module of the energy saving control module, when the signal is detected After the module detects the sensor module to detect the signal immediately, and provides the operation processing module to compare the converted groundwater level control value, the operation processing module transmits the The signal generating module generates a frequency converter module control signal, thereby changing the voltage, current or frequency of the output power of the frequency converter module, and adjusting the pumping quantity of the pumping module by the power switching module to stabilize the groundwater level control Set the water level value to be controlled. According to the energy saving control system of the groundwater level of the construction engineering drowning project mentioned in the fifth paragraph of the patent application scope, the power automatic switching protection function is provided, and when the signal detecting module of the energy saving control module detects the fault state of the inverter module After the operation processing module is checked, the operation processing module automatically switches to the mains mode operation through the signal generation module, and when the energy saving control module fails, The power switching module is automatically switched to the mains mode operation, and the pumping module is in the mains mode to perform pumping operations to reduce the groundwater level to ensure construction site safety.