Automatic device and method for recycling underground seepage water

Abstract

The invention belongs to the field of resource recycling, and relates to an automatic device and method for recycling underground seepage water, the device comprises a seepage water collecting cavity, an anti-blocking filter, an explosion-proof submersible pump, a cooling water tank and other components, and the components are connected and controlled through flanges, electric control valves, check valves and the like. Wherein the anti-clogging filter adopts a detachable filter screen and a backwashing interface, so that clogging is effectively prevented; the two explosion-proof submersible pumps are connected in parallel, and main and standby alternate operation is achieved. According to the method, the water quality and the water quantity are monitored in real time through the liquid level sensor and the water quality online monitor, the PLC dynamically adjusts operation of the electric adjusting valve and the submersible pump according to monitoring data, and stable conveying is ensured. And meanwhile, the flow fluctuation is controlled by adopting a fuzzy PID algorithm, so that the recycling efficiency is improved. The system has the characteristics of high efficiency, stability, energy conservation and intelligence, and is suitable for recycling seepage water of underground building structures.

Description

Technical Field

[0001] The present invention belongs to the field of resource recycling and utilization, and relates to an automated device and method for recycling underground infiltration water. Background Art

[0002] With the booming development of industrial production, the demand for water resources has increased sharply, and the problem of water resource shortage has become increasingly severe. Underground infiltration water, as a potential water resource, its recycling and utilization is of great significance for alleviating water resource shortage and reducing production costs. However, there are still many defects in the current technologies for recycling underground infiltration water, which limit its practical application effect.

[0003] Firstly, the water quality of underground infiltration water is often complex and variable, containing various impurities such as suspended solids, organic matter, and heavy metals. If these impurities are directly reused without effective treatment, they may corrode production equipment, affect product quality, and even cause safety accidents. Traditional technologies for recycling infiltration water often lack the ability to monitor and treat water quality in real time, and it is difficult to ensure the stable quality of recycled water.

[0004] Secondly, the flow rate and pressure of underground infiltration water are usually unstable, affected by various factors such as geological conditions, rainfall, and seasonal changes. This instability brings great difficulties to the collection and transportation of infiltration water. Traditional collection systems often use simple drainage pipes and valve controls, and cannot achieve precise regulation of the infiltration water flow rate and stable transportation. This not only affects the recycling and utilization efficiency of infiltration water, but also may lead to waste of resources.

[0005] In addition, the recycling and utilization of underground infiltration water also need to consider the issues of energy conservation and consumption reduction. Traditional recycling and utilization technologies often consume high energy. For example, high-power water pumps are used for transportation, or a large amount of electric energy is consumed during the treatment process. This not only increases production costs, but also does not conform to the current development concept of green and low-carbon.

[0006] In terms of automatic control, traditional technologies for recycling infiltration water also have obvious deficiencies. Many systems lack intelligent control components and cannot achieve real-time monitoring and remote control of various links such as infiltration water collection, treatment, and transportation. This not only increases the difficulty and cost of manual operation, but also is difficult to ensure the stability and reliability of the system.

[0007] In response to the above problems, some improved technologies for recycling infiltration water have been proposed currently, but these technologies still have limitations. For example, although some technologies have increased the monitoring and treatment links of water quality, the equipment is complex and the cost is high, which is not conducive to popularization and application; although some technologies have achieved automatic control, they still need to be improved in terms of flow rate regulation, energy conservation and consumption reduction.

[0008] In summary, the existing underground seepage water recycling technologies have obvious defects in aspects such as water quality treatment, flow regulation, energy conservation and consumption reduction, and automatic control. These defects limit the efficiency and economy of seepage water recycling and also restrict its wide application in industrial production. Therefore, developing an efficient, stable, energy-saving, and intelligent automatic device and method for underground seepage water recycling is of great significance for improving water resource utilization efficiency, reducing production costs, and promoting industrial sustainable development. Summary of the Invention

[0009] In view of this, the purpose of the present invention is to provide an automatic device and method for underground seepage water recycling to solve the existing problems.

[0010] To achieve the above object, the present invention provides the following technical solution: An automatic device for underground seepage water recycling includes a seepage water collection chamber, an anti-blocking filter, an explosion-proof submersible pump, and a cooling water tank connected in sequence. The seepage water collection chamber is arranged in the sump of the underground building structure and is used to receive and temporarily store seepage water. The cooling water tank serves as the terminal water storage facility and receives the treated seepage water through a drainage pipeline. The anti-blocking filter is connected downstream of the seepage water collection chamber through a flange and includes a detachable filter screen and a backwashing interface. An electric control valve is arranged between the anti-blocking filter and the explosion-proof submersible pump to regulate the seepage water flow. There are two explosion-proof submersible pumps, which are connected to an anti-eddy device through a pipeline, are arranged in parallel, and are equipped with independent control circuits. Among them, the explosion-proof submersible pump is also connected to a PLC controller.

[0011] Optionally, a liquid level sensor is arranged on the seepage water collection chamber. The liquid level sensor adopts a double-float structure and is provided with two control points, high and low. A water quality on-line monitor is also arranged at the water outlet of the seepage water collection chamber to detect the pH value, conductivity, and suspended solid concentration in real time. The liquid level sensor and the water quality on-line monitor are signal-connected to the PLC controller.

[0012] Optionally, an anti-eddy device is arranged at the inlet of the explosion-proof submersible pump, and the anti-eddy device adopts an inverted cone structure.

[0013] Optionally, a check valve is arranged at the outlet end of the explosion-proof submersible pump to prevent water flow back.

[0014] Optionally, the backwashing interface of the anti-blocking filter is connected to a high-pressure water source, the backwashing direction is opposite to the seepage water flow direction, and the backwashing pressure range is 2-4 bar.

[0015] An automatic method for underground seepage water recycling, which applies the above-mentioned automatic device for underground seepage water recycling, includes the following steps:

[0016] S1. The infiltrated water enters the infiltrated water collection chamber by gravity. When the liquid level sensor detects a high water level, a system start signal is triggered.

[0017] S2. The on-line water quality monitor analyzes the infiltrated water in real time. If the water quality parameters exceed the preset range, the electric control valve is closed and an alarm is started.

[0018] S3. The infiltrated water meeting the water quality requirements passes through an anti-clogging filter and an anti-eddy device in sequence, and is pressurized and conveyed by an explosion-proof submersible pump.

[0019] S4. The pressurized water flows through a check valve and then enters the cooling water pool. During the conveying process, the PLC controller dynamically adjusts the operating frequency of the explosion-proof submersible pump according to the liquid level data.

[0020] S5. When the pressure difference of the anti-clogging filter exceeds 0.1 MPa, the backwashing program is automatically started, and the washing wastewater is discharged to the emergency treatment pool.

[0021] Optionally, in step S3, two explosion-proof submersible pumps operate in a main-backup alternating mode, with a switching period of 24 hours. And a slow-closing check valve is used to prevent the water hammer effect during the switching.

[0022] Optionally, the backwashing program in step S5 includes: closing the main conveying pipeline, opening the standby pipeline, and backwashing the anti-clogging filter with 3 bar pressure water for 90 - 120 seconds.

[0023] Optionally, the PLC controller controls the opening degree of the electric control valve through a fuzzy PID algorithm, so that the flow fluctuation range of the explosion-proof submersible pump does not exceed ±5%.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1) The present invention effectively collects the infiltrated water in the underground building structure through the infiltrated water collection chamber, avoiding the waste of water resources. At the same time, through the combined use of an anti-clogging filter and an explosion-proof submersible pump, the effective treatment and stable conveying of the infiltrated water are realized, ensuring the quality of the recycled water. This automated recycling method greatly improves the utilization efficiency of water resources and helps to alleviate the problem of water resource shortage.

[0026] 2) The present invention integrates intelligent control elements such as a PLC controller, an electric control valve, a liquid level sensor, and an on-line water quality monitor, realizing the real-time monitoring and remote control of each link such as the collection, treatment, and conveying of the infiltrated water. This intelligent control method not only improves the stability and reliability of the system, but also reduces the difficulty and cost of manual operation. At the same time, through the application of advanced control strategies such as the fuzzy PID algorithm, the automation degree and control accuracy of the system are further improved.

[0027] 3) The recycling and utilization of underground seepage water in the present invention is a green and low-carbon environmental protection behavior, which helps to reduce the pollution and damage of industrial production to the environment. Through the application of this device, enterprises can achieve the efficient recycling and utilization of underground seepage water, reduce the consumption of fresh water and the discharge of wastewater, and thus achieve the goal of sustainable development. This not only helps to enhance the social image and brand value of enterprises, but also helps to promote the green transformation and sustainable development of the whole society.

[0028] In summary, an automated device and method for recycling and utilizing underground seepage water have significant beneficial effects in improving water resource utilization efficiency, reducing production costs, ensuring production safety, achieving intelligent control, and promoting sustainable development. This innovative recycling method will bring more economic and environmental benefits to industrial production.

[0029] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. Brief Description of the Drawings

[0030] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0031] Figure 1 It is a connection system diagram of an automated device for recycling and utilizing underground seepage water of the present invention.

[0032] Reference numerals: seepage water collection chamber 1, liquid level sensor 2, on-line water quality monitor 3, anti-clogging filter 4, electric control valve 5, anti-eddy device 6, explosion-proof submersible pump 7, check valve 8, cooling water tank 9. Detailed Embodiments

[0033] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention schematically, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0034] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than actual physical diagrams, and should not be construed as a limitation on the present invention; in order to better illustrate the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0035] In the attached drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. Specific Embodiment 1

[0037] Please refer to Figure 1 , which is an automated device for the recycling and utilization of underground seepage water. Specifically:

[0038] I. Device Installation and Configuration

[0039] 1. Installation of the seepage water collection chamber 1

[0040] The seepage water collection chamber 1 is installed in the sump of the underground building structure. Its design should take into account the size and shape of the sump to ensure that it can fully receive and temporarily store the seepage water. The material of the collection chamber is selected as corrosion-resistant and high-strength materials, such as stainless steel or fiberglass, to extend its service life.

[0041] On the top of the seepage water collection chamber 1, a liquid level sensor 2 is installed. This sensor adopts a double-float structure and is set with two control points, high and low. When the water level reaches the high control point, the sensor will send a signal to the PLC controller to trigger the system start signal; when the water level drops to the low control point, the operation of the system will stop.

[0042] A water quality on-line monitor 3 is also installed at the water outlet of the seepage water collection chamber 1 to detect the pH value, conductivity and suspended solid concentration of the seepage water in real time. These water quality parameters are crucial for judging whether the seepage water is suitable for recycling and utilization.

[0043] 2. Installation and Configuration of the Anti-Clogging Filter 4

[0044] The anti-clogging filter 4 is connected downstream of the permeate water collection chamber 1 by a flange. It is internally equipped with a detachable filter screen, and the aperture of the filter screen is selected according to actual requirements to ensure that suspended solids, organic matter and other impurities in the permeate water can be effectively filtered out.

[0045] An anti-flushing interface is provided on the housing of the anti-clogging filter 4, and this interface is connected to a high-pressure water source. When the pressure difference of the filter exceeds 0.1 MPa, the PLC controller will automatically start the anti-flushing program to remove the blockage on the filter screen by reverse flushing to keep the filter unclogged. The anti-flushing pressure is controlled between 2 - 4 bar, and the flushing time lasts for 90 - 120 seconds.

[0046] 3. Installation of the explosion-proof submersible pump 7 and the electric control valve 5

[0047] Downstream of the anti-clogging filter 4, an electric control valve 5 is installed to regulate the flow of permeate water. This control valve is signal-connected to the PLC controller and automatically adjusts the opening according to system requirements and real-time water quality and water volume conditions to ensure that the explosion-proof submersible pump 7 can work stably and efficiently.

[0048] There are two explosion-proof submersible pumps 7, which are connected to the anti-eddy device 6 through pipelines. The two submersible pumps are arranged in parallel and equipped with independent control circuits to achieve main and standby alternate operation. The switching period is 24 hours, and a slow-closing check valve is used to prevent the occurrence of water hammer effect during switching. A check valve 8 is also installed at the outlet end of the submersible pump to prevent the backflow of water.

[0049] The explosion-proof submersible pump 7 is signal-connected to the PLC controller and dynamically adjusts its operating frequency according to the detection data of the liquid level sensor 2 to ensure that the permeate water can be transported to the cooling water tank 9 at a constant flow rate.

[0050] 4. Arrangement of the cooling water tank 9 and the drainage pipeline

[0051] The cooling water tank 9, as the terminal water storage facility, receives the treated permeate water through the drainage pipeline. The design of the drainage pipeline should consider factors such as terrain and water flow resistance to ensure that the permeate water can flow smoothly into the cooling water tank.

[0052] A flow meter and a pressure gauge are installed on the drainage pipeline to monitor the flow rate and pressure of the permeate water in real time, providing data support for the optimized operation of the system. Specific Embodiment 2

[0054] II. An automatic method for recycling underground permeate water, specifically implemented as follows:

[0055] 1. System startup and water quality detection

[0056] When the water level in the permeate water collection chamber 1 reaches the high control point, the liquid level sensor 2 sends a signal to the PLC controller to trigger the system start signal. At this time, the on-line water quality monitor 3 starts to analyze the permeate water in real time.

[0057] If the water quality parameters (such as pH value, conductivity, suspended solid concentration) exceed the preset range, the PLC controller will close the electric control valve 5 and start the alarm device to prompt the operator to handle it.

[0058] 2. Treatment and transportation of permeate water

[0059] The permeate water meeting the water quality requirements passes through the anti-clogging filter 4 and the anti-eddy device 6 in sequence, and is pressurized and transported by the explosion-proof submersible pump 7. During the transportation process, the PLC controller dynamically adjusts the operating frequency of the submersible pump according to the detection data of the liquid level sensor 2 to ensure that the permeate water can be transported to the cooling water tank 9 at a constant flow rate.

[0060] 3. Switching and backwashing of main and standby submersible pumps

[0061] Two explosion-proof submersible pumps 7 adopt the main and standby alternating operation mode, and the switching period is 24 hours. When switching, a slow-closing check valve is used to prevent the occurrence of water hammer effect.

[0062] When the pressure difference of the anti-clogging filter 4 exceeds 0.1 MPa, the PLC controller will automatically start the backwashing program. Close the main conveying pipeline and open the standby pipeline, and backwash the anti-clogging filter with 3 bar pressure water for 90 - 120 seconds. The backwashing wastewater is discharged to the emergency treatment pool for treatment.

[0063] 4. Flow regulation and control

[0064] The PLC controller controls the opening of the electric control valve 5 through the fuzzy PID algorithm to make the flow fluctuation range of the explosion-proof submersible pump 7 not exceed ±5%. This advanced control strategy can ensure the stable operation of the system and improve the recycling efficiency.

[0065] Through the description of the above specific embodiments, it can be seen that an automatic device and method for underground permeate water recycling of the present invention has the characteristics of high efficiency, stability, energy saving and intelligence. The device and method can realize the efficient collection, treatment and recycling of underground permeate water, which helps to improve the water resource utilization efficiency, reduce the production cost, ensure the production safety, realize the intelligent control and promote the sustainable development.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automated device for recycling underground seepage water, characterized in that: It includes a seepage water collection chamber, an anti-clogging filter, an explosion-proof submersible pump and a cooling water tank connected in sequence. The seepage water collection chamber is arranged in a sump of an underground building structure to receive and temporarily store the seepage water. The cooling water tank serves as a terminal water storage facility to receive the treated seepage water through a drainage pipe. The anti-clogging filter is connected to the downstream of the permeate water collection chamber through a flange, and includes a detachable filter screen and a backwashing interface; an electric regulating valve is provided between the anti-clogging filter and the explosion-proof submersible pump to adjust the permeate water flow rate; Two explosion-proof submersible pumps are provided and connected to the anti-eddy current device through a pipeline. The two pumps are arranged in parallel and equipped with independent control circuits. Among them, the explosion-proof submersible pump is also connected to a PLC controller.

2. The automatic device for recycling underground seepage water according to claim 1, characterized in that: A liquid level sensor is provided on the osmotic water collection chamber. The liquid level sensor adopts a double-float structure and is provided with two high and low control points. An online water quality monitor is also provided at the outlet of the osmotic water collection chamber to detect pH value, conductivity and suspended matter concentration in real time. The liquid level sensor, the water quality online monitor and the PLC controller are connected by signal.

3. The automatic device for recycling underground seepage water according to claim 1, characterized in that: An anti-vortex device is provided at the inlet of the explosion-proof submersible pump, and the anti-vortex device adopts an inverted cone structure.

4. The automatic device for recycling underground seepage water according to claim 1, characterized in that: A check valve is provided at the outlet of the explosion-proof submersible pump to prevent water backflow.

5. The automatic device for recycling underground seepage water according to claim 1, characterized in that: The backwash interface of the anti-clogging filter is connected to a high-pressure water source. The backwash direction is opposite to the flow direction of the permeate water, and the backwash pressure range is 2-4 bar.

6. An automated method for recycling underground seepage water, using an automated device for recycling underground seepage water as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1, the permeate water enters the permeate water collection chamber by gravity, and when the liquid level sensor detects a high water level, the system start signal is triggered; S2, the water quality online monitor performs real-time analysis on the permeated water. If the water quality parameters exceed the preset range, the electric regulating valve is closed and the alarm is activated; S3, the permeated water that meets the water quality requirements passes through the anti-clogging filter and the anti-vortex device in turn, and is pressurized and transported by an explosion-proof submersible pump; S4, the pressurized water flows through the check valve and enters the cooling water pool. During the transportation process, the PLC controller dynamically adjusts the operating frequency of the explosion-proof submersible pump according to the liquid level data; S5: When the pressure difference of the anti-clogging filter exceeds 0.1MPa, the backwashing program is automatically started and the flushing wastewater is discharged to the emergency treatment pool.

7. The automated method for recycling underground seepage water according to claim 1, characterized in that: In step S3, the two explosion-proof submersible pumps adopt a primary-standby alternating operation mode with a switching cycle of 24 hours, and a slow-closing check valve is used to prevent water hammer effect during switching.

8. The automated method for recycling underground seepage water according to claim 1, characterized in that: The backwashing procedure described in step S5 includes: closing the main delivery pipeline, opening the backup pipeline, and backwashing the anti-clogging filter with 3 bar pressure water for 90-120 seconds.

9. The automated method for recycling underground seepage water according to claim 1, characterized in that: The PLC controller controls the opening of the electric regulating valve through a fuzzy PID algorithm, so that the flow fluctuation range of the explosion-proof submersible pump does not exceed ±5%.

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