Automatic control and operation monitoring system for deep-well pump

Abstract

The utility model provides a deep-well pump automatic control and operation monitoring system which comprises a deep-well pump, a water outlet pipe, an alternating current contactor, a liquid level relay and a liquid level probe, the input end of the liquid level relay is connected with the liquid level probe, and the output end of the liquid level relay is connected with the input end of the alternating current contactor. The output end of the alternating current contactor is connected with the input end of the deep-well pump; when the water level in the tube well is higher than the high liquid level, the deep-well pump is started to pump out underground water in the tube well, when the water level of the underground water in the tube well is lower than the low liquid level, the liquid level relay obtains a signal and feeds back the signal to the alternating-current contactor, and the alternating-current contactor controls the deep-well pump to stop working; when the underground water level in the tube well recovers to be higher than the high liquid level, the liquid level relay obtains signals and feeds back the signals to the alternating current contactor, and the deep-well pump is controlled again to start working. Operating data of the deep-well pump can be monitored in real time and transmitted to an internet of things platform, and management and maintenance personnel can check the state and historical data of the deep-well pump at any time and any place.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater treatment, and specifically, to a deep well pump automatic control and operation status monitoring system. Background Art

[0002] Groundwater refers to the water stored in the rock voids below the ground surface. Narrowly speaking, it refers to the water in the saturated aquifer below the groundwater table. With the industrial development in recent years, the water quality of groundwater has been greatly affected. Therefore, it is necessary to treat groundwater to restore its original water quality function. As a relatively mature technical process at present, the extraction-treatment technology is widely used in groundwater treatment projects. Among them, the deep well pump, as a non-shallow groundwater extraction device, is widely used. Its biggest feature is that the motor and the pump body are integrated, and water is extracted by immersing in the water body.

[0003] The controller, as one of the core components of the deep well pump for extracting groundwater, plays a key role in the deep well pump extraction system. Usually, a float ball or a buoyancy switch is installed in a water tank or a pool to control the start and stop of the deep well pump. When the water level is lower than the set value, the float ball sinks, the switch is turned on, and the deep well pump starts pumping water; when the water level reaches the preset high water level, the float ball rises, the switch is turned off, and the deep well pump stops working. However, in the groundwater extraction pipe well with limited space, the chaotic structure often limits the control action of the float ball, and the water pump cannot stop in time, resulting in damage.

[0004] In addition, during the groundwater extraction process, the environment in the pipe well is complex. In order to ensure the stable operation of the deep well pump and timely troubleshooting of faults, the monitoring of the pump's operation status is an important part of daily management. However, currently, the monitoring system usually requires sensors as the monitoring components of the system to achieve the monitoring of the pump's operation status. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model proposes a deep well pump automatic control and operation monitoring system, which can improve the automation degree of the deep well pump and the operation monitoring and management efficiency.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] An automatic control and operation monitoring system for a deep well pump, comprising a deep well pump, a water outlet pipe, an AC contactor, a liquid level relay and a liquid level probe. The water outlet of the deep well pump is connected to the water outlet pipe. The liquid level probe is arranged in the pipe well. The input end of the liquid level relay is connected to the liquid level probe. The output end of the liquid level relay is connected to the input end of the AC contactor. The output end of the AC contactor is connected to the input end of the deep well pump. When the water level in the pipe well is above the high liquid level, the deep well pump starts to pump out the groundwater in the pipe well. When the groundwater level in the pipe well is lower than the low liquid level, the liquid level relay gets a signal and feeds it back to the AC contactor, and the AC contactor controls the deep well pump to stop working. When the groundwater level in the pipe well resumes above the high liquid level, the liquid level relay gets a signal and feeds it back to the AC contactor, and the AC contactor controls the deep well pump to start working again.

[0008] Preferably, a check valve is installed on the water outlet pipe to prevent the backflow of the water pumped out by the deep well pump. At the same time, a stop valve is also installed on the water outlet pipe to realize the independent control of the water pumped out by the deep well pump.

[0009] Preferably, the liquid level probe includes a high liquid level probe and a low liquid level probe. The elevations of the high liquid level probe, the low liquid level probe and a common end in the pipe well are determined according to the actual pumping depth requirements, and the high liquid level probe, the low liquid level probe and the common end are respectively connected to the contacts in the liquid level relay.

[0010] Preferably, when the water level in the pipe well is at the elevation of the high liquid level probe, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to start working.

[0011] Preferably, when the groundwater in the pipe well is pumped by the deep well pump and the water level continuously drops, when the water level is lower than the elevation of the low liquid level probe, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to stop working.

[0012] Preferably, after the deep well pump stops working, the water level in the pipe well continuously rises due to the recharge of the surrounding groundwater. When the water level rises to the elevation of the high liquid level probe, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to start working again.

[0013] Preferably, auxiliary contacts are also provided in the AC contactor. The system further includes a remote IO module for realizing real-time monitoring of the operation state of the deep well pump. The first normally open contact in the auxiliary contacts is connected to the signal input end in the remote IO module, and the second normally open contact in the normally open auxiliary contacts is connected to the grounding end in the remote IO module.

[0014] Preferably, when the deep well pump is working, the energized contacts of the AC contactor are closed, and the first normally open contact in the auxiliary contacts is closed. The remote IO module obtains the operation status signal of the deep well pump, generates a digital signal 1 according to the operation status signal, and wirelessly transmits the signal to the Internet of Things platform to achieve online real-time monitoring. When the deep well pump stops working, the de-energized contacts of the AC contactor are opened, the first normally open contact of the auxiliary contacts is opened, the remote IO module generates a digital signal of 0 according to the operation status signal of the deep well pump, and wirelessly transmits the signal to the Internet of Things platform to achieve online real-time monitoring.

[0015] Preferably, the Internet of Things platform includes a network and infrastructure layer, a data layer, a platform layer, an application layer, and a display layer.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model automatically controls the start and stop of the deep well pump through the water level. At the same time, under the condition of limited reaction space in the pipe well, the risk of equipment damage is reduced, and the on-site management level is further improved through real-time monitoring.

[0018] 2. The deep well pump operation status monitoring system of the present utility model based on the Internet of Things adopts modern monitoring technologies. The operation monitoring and control of the deep well pump are closely related. The operation data of the deep well pump can be transmitted and monitored in real time, and the management and maintenance personnel can view the status and historical data of the deep well pump at any time and place.

[0019] 3. Under the condition of a large-scale site, on-site management personnel can obtain the operation status of all deep well pumps through the display terminal of the total platform, and use charts and other methods to statistically analyze the historical operation data of the deep well pumps in various forms, improve the on-site management efficiency, and thus extend the service life of the deep well pumps to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0021] Figure 1 It is the logic block diagram of the deep well pump automatic control and operation monitoring system of the present utility model;

[0022] Figure 2 It is the application connection diagram of the deep well pump automatic control and operation monitoring system of the present utility model;

[0023] Figure 3 It is the connection schematic diagram of the deep well pump automatic control and operation monitoring system of the present utility model;

[0024] Figure 4 It is the system architecture diagram of the Internet of Things platform of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0026] Specifically, as Figures 1 to 3 shown, the automatic control and operation monitoring system of the deep well pump of the present utility model includes a deep well pump 4, a water outlet pipe 5, an AC contactor 2, a liquid level relay 3, and a liquid level probe. Among them, the water outlet of the deep well pump 4 is connected to the water outlet pipe 5. The input end of the liquid level relay 3 is connected to the liquid level probe, the liquid level probe is arranged in the pipe well 12, the output end of the liquid level relay 3 is connected to the input end of the AC contactor 2, and the output end of the AC contactor 2 is connected to the input end of the deep well pump 4.

[0027] When the water level in the pipe well is above the high liquid level, the deep well pump 4 starts to pump out the groundwater in the pipe well. When the groundwater level in the pipe well drops with the pumping time and the water level in the pipe well is lower than the low liquid level, the liquid level relay 3 gets a signal and feedbacks it to the AC contactor 2, and the AC contactor 2 changes its working state, and the deep well pump 4 stops working. When the groundwater in the pipe well is replenished over time and the water level in the pipe well gradually recovers above the high liquid level, the liquid level relay 3 gets a signal and feedbacks it to the AC contactor 2, and the AC contactor 2 changes its working state again, and the deep well pump 4 starts to work.

[0028] The implementation principle of the control system in the specific deep well pump extraction process is as follows:

[0029] The AC contactor 2 is powered by the air switch 1, and the start and stop of the deep well pump 4 are realized through the liquid level relay 3. Among them, when the main contacts of the AC contactor 2 are in contact, the motor of the deep well pump 4 works, and when the main contacts of the AC contactor 2 are separated, it stops. Among them, the core is to realize the start and stop of the deep well pump by controlling the on-off state of the main contacts of the AC contactor 2.

[0030] To achieve the automatic control effect of the deep well pump through the liquid level, the water outlet of the deep well pump 4 is connected to the water outlet pipe 5. A check valve 7 is installed on the water outlet pipe 5 to prevent the reverse flow of the pump water, and a stop valve 8 is synchronously installed on the water outlet pipe 5 to realize the independent control of the pump water outlet. When large-area synchronous extraction control needs to be realized on the site, the water outlet pipes 5 of multiple deep well pumps can be connected to the main water outlet pipe 9 to realize the collection of the water outlets of multiple deep well pumps.

[0031] Bentonite 10 and quartz sand 11 are provided around the pipe well 12. The liquid level probe includes a high liquid level probe 13 and a low liquid level probe 14. The elevations of the high liquid level probe 13, the low liquid level probe 14, and the common end 15 in the pipe well 12 are determined according to the actual pumping depth requirements. The high liquid level probe 13 is connected to the contact (5) in the liquid level relay 3, the low liquid level probe 14 is connected to the contact (6) in the liquid level relay 3, and the common end 15 is connected to the contact (7) in the liquid level relay 3.

[0032] When the control selection is adjusted to the manual control state 304, press the button SB2, the coil KM is energized and the contacts of the AC contactor 2 are closed, and the deep well pump starts to work and pump water. When the deep well pump is in the pumping working state and the button SB2 is pressed again, at this time the coil KM loses power and the contacts of the AC contactor 2 are disconnected, and the deep well pump stops working.

[0033] When the control selection is adjusted to the automatic control state 300, when the water level in the pipe well 12 is at the elevation of the high liquid level probe 13, the contact (5) in the liquid level relay 3 receives a signal, and the contact (3) sends a signal to connect to the contact (4). At this time, the AC contactor 2 receives a signal and changes its state, and the energized contacts are closed, and the deep well pump 4 starts to work.

[0034] When the groundwater in the pipe well 12 continuously drops with the operation of the deep well pump 4 pumping water, and the water level in the pipe well 12 is lower than the elevation of the low liquid level probe 14, the contact (6) in the liquid level relay 3 receives a signal, and the contact (3) sends a signal to connect to the contact (4). At this time, the AC contactor 2 receives a signal and changes its state again, thereby controlling the deep well pump 4 to stop working.

[0035] After the deep well pump 4 stops working, with the recharge of the surrounding groundwater in the pipe well 12, the water level in the well continuously rises. When the water level rises to the elevation of the high liquid level probe 13, at this time the liquid level relay 3 receives a signal and feeds back to the AC contactor 2, and the AC contactor 2 changes its working state again, controlling the deep well pump 4 to start working, thereby realizing the automatic control of the deep well pump.

[0036] Further, on the basis of the above deep well pump operation automatic control system, the AC contactor 2 is also provided with an auxiliary contact 16, and at the same time a new remote IO module 17 is added to realize real-time monitoring of the operation state of the deep well pump.

[0037] Specifically, connect the first normally open contact (53NO) in the auxiliary contact 16 to the signal input terminal (DI1) in the remote IO module 17, and connect the second normally open contact (54NO) in the auxiliary contact 16 to the ground terminal (GND) in the remote IO module 17.

[0038] When the deep well pump 4 is working, the energized contacts of the AC contactor 2 are closed, and the first normally open contact (53NO) in the auxiliary contact 16 is closed. The remote IO module 17 obtains the operation status signal of the deep well pump, generates a digital signal 1 according to the operation status signal, and synchronously transmits the signal wirelessly to the Internet of Things platform to realize online real-time monitoring.

[0039] When the deep well pump 4 stops working, the de-energized contacts of the AC contactor 2 are opened, and the first normally open contact (53NO) in the auxiliary contact 16 is opened. The remote IO module 17 generates a digital signal of 0 according to the operation status signal of the deep well pump, and synchronously transmits the signal wirelessly to the Internet of Things platform to realize online real-time monitoring.

[0040] Furthermore, the daily online duration T1 and the cumulative operation duration T of the deep well pump can be calculated according to the historical data statistics through the Internet of Things platform.

[0041] The daily online operation duration T1 of the deep well pump takes the time at the zero moment as the calculation reference, sums up the historical data of the deep well pump on the same day, and the mathematical model used for the calculation is:

[0042]

[0043] The cumulative operation duration T of the deep well pump takes the statistical moment as the reference, sums up the historical data of the previous year to obtain the cumulative duration, and the mathematical model used for the calculation is:

[0044]

[0045] In this way, the time parameters of the pump operation status can be obtained.

[0046] Furthermore, when multiple pumps need to operate together, the opening and closing state of the relay of any one pump is used as its operation status signal. At the same time, the real-time status of the equipment is statistically calculated through the worksheet data of the Internet of Things platform, the number of equipment in operation at the current moment in the area is obtained, and the equipment online rate η is calculated:

[0047]

[0048] Through comprehensive analysis of multiple parameters such as the daily operation duration T1, the cumulative operation duration T, and the equipment online rate η of a single pump, the equipment loss situation and the overall working state of the equipment in the area are further analyzed to realize the monitoring of the system operation status.

[0049] As Figure 4 shown, the overall architecture of the Internet of Things platform, that is, the groundwater environmental protection monitoring platform, mainly includes a network and infrastructure layer, a data layer, a platform layer, an application layer, and a display layer, covering the entire process from the construction of the underlying environmental basic data to the construction of the top-level service, and finally achieving the overall management and intelligent management of the core elements of the groundwater environment operation quality.

[0050] The network and infrastructure layer mainly includes computer networks, cloud servers, power supply systems, devices, etc. The present utility model mainly utilizes the Internet, Internet of Things, etc. deployed on a private cloud (private IP address), and the monitoring devices need to be powered and connected to electricity. Operating parameters are collected according to the operating conditions of the pump, and the operating parameters are uploaded to the Internet of Things platform in real time through wireless transmission. Further, according to the obtained device operating parameters, combined with the platform mathematical model, the operating conditions of the device can be statistically analyzed to realize the visual display of the device operating status.

[0051] In summary, when using the automatic control and operation monitoring system for deep well pumps of the present utility model, the operation effect is good. Combining with the natural characteristics of groundwater recharge in the tube well, the whole process is automatically controlled and circulated. Moreover, by combining non-sensor means to realize real-time monitoring of the pump operation status, the collection and analysis of the deep well pump operation status data can timely detect abnormal conditions in the deep well pump operation status, avoid production accidents caused by equipment damage. When an abnormal condition occurs, the monitoring system automatically issues a warning signal and reports it to the on-site management personnel for timely intervention, which can reduce the downtime and maintenance cost of the deep well pump, save a large amount of manpower and material resources, improve the system operation management efficiency and production benefits during the groundwater extraction process, and increase the service life of the equipment.

[0052] The specific embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific implementation manners, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present utility model. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. An automatic control and operation monitoring system for deep well pumps, characterized in that, The system includes a deep well pump, a water outlet pipe, an AC contactor, a liquid level relay, and a liquid level probe. The water outlet of the deep well pump is connected to the water outlet pipe. The liquid level probe is arranged in the pipe well. The input end of the liquid level relay is connected to the liquid level probe. The output end of the liquid level relay is connected to the input end of the AC contactor. The output end of the AC contactor is connected to the input end of the deep well pump. When the water level in the pipe well is above the high liquid level, the deep well pump starts to pump out the groundwater in the pipe well. When the groundwater level in the pipe well is lower than the low liquid level, the liquid level relay gets a signal and feeds it back to the AC contactor, and the AC contactor controls the deep well pump to stop working. When the groundwater level in the pipe well resumes above the high liquid level, the liquid level relay gets a signal and feeds it back to the AC contactor, and the AC contactor controls the deep well pump to start working again.

2. The automatic control and operation monitoring system for deep well pumps according to claim 1, characterized in that, A check valve is installed on the water outlet pipe to prevent the backflow of the water pumped out by the deep well pump. At the same time, a stop valve is also installed on the water outlet pipe to achieve independent control of the water pumped out by the deep well pump.

3. The automatic control and operation monitoring system for deep well pumps according to claim 1, characterized in that, The liquid level probe includes a high liquid level probe and a low liquid level probe. Determine the elevations of the high liquid level probe, the low liquid level probe, and a common terminal in the pipe well according to the actual pumping depth requirements, and connect the high liquid level probe, the low liquid level probe, and the common terminal to the contacts in the liquid level relay respectively.

4. The automatic control and operation monitoring system for deep well pumps according to claim 3, characterized in that, When the water level in the pipe well is at the elevation where the high liquid level probe is located, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to start working.

5. The automatic control and operation monitoring system for deep well pumps according to claim 4, characterized in that, When the groundwater in the pipe well is pumped by the deep well pump and the water level continues to drop, when the water level is lower than the elevation where the low liquid level probe is located, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to stop working.

6. The automatic control and operation monitoring system for deep well pumps according to claim 5, wherein After the deep well pump stops working, the water level in the pipe well continues to rise due to the recharge of the surrounding groundwater. When the water level rises to the elevation where the high liquid level probe is located, the liquid level relay gets a signal and sends a signal to the AC contactor, and the AC contactor controls the deep well pump to start working again.

7. The automatic control and operation monitoring system for deep well pumps according to claim 1, wherein, Auxiliary contacts are also set in the AC contactor. The system also includes a remote IO module for realizing real-time monitoring of the operation state of the deep well pump. Connect the first normally open contact in the auxiliary contacts to the signal input end in the remote IO module, and connect the second normally open contact in the normally open auxiliary contacts to the grounding end in the remote IO module.

8. The automatic control and operation monitoring system for deep well pumps according to claim 7, characterized in that, When the deep well pump is working, the energized contacts of the AC contactor are closed, the first normally open contact in the auxiliary contacts is closed, the remote IO module gets the operation state signal of the deep well pump, generates a digital signal 1 according to the operation state signal, and wirelessly transmits the signal to the Internet of Things platform to realize online real-time monitoring. When the deep well pump stops working, the de-energized contacts of the AC contactor are opened, the first normally open contact of the auxiliary contacts is opened, the remote IO module generates a digital signal of 0 according to the operation state signal of the deep well pump, and wirelessly transmits the signal to the Internet of Things platform to realize online real-time monitoring.

9. The automatic control and operation monitoring system for deep well pumps according to claim 8, characterized in that The Internet of Things platform includes a network and infrastructure layer, a data layer, a platform layer, an application layer, and a display layer.

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