An underground water irrigation management system and method

Abstract

The application discloses a kind of groundwater irrigation control system and control method, the control system includes the multiple groundwater wells distributed in farmland, and the irrigation water pump being arranged in each groundwater well, the irrigation water pump is connected with the irrigation pipe that can extend to the distal end of farmland irrigation direction on each, and the irrigation port of the irrigation pipe can retract to the irrigation water pump place.Irrigation control method includes groundwater gathering, groundwater level regulation, irrigation preparation and irrigation.The well lid provided by the irrigation system can realize the balanced increase of the water storage capacity in the groundwater well, so that the multiple groundwater wells have substantially equivalent water storage capacity, and each groundwater well has balanced irrigation area in the later irrigation, which reduces the difficulty of groundwater drainage;The irrigation pipe can be synchronously irrigated along the entire irrigation pipe and ground irrigation length, solve the problem of excessive percolation and waste of groundwater, and finally realize the effective control of quantitative groundwater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground water irrigation control, and particularly relates to an underground water irrigation control system and a control method. BACKGROUND

[0002] At present, when using underground water for farmland irrigation, as shown in the accompanying drawings of the specification, an irrigation channel is arranged at the head of the farmland, and an opening is arranged at each head, underground water gathered in the irrigation channel is pumped out by an irrigation water pump, and flows to the irrigation farmland from the opening, until it flows to the far end of the irrigation farmland (the other end of the head), and the complete irrigation of the irrigation area is completed. Figure 1

[0003] The traditional irrigation method of using the irrigation channel to flow underground water from the head to the far end of the farmland has the following shortcomings:

[0004] 1. In the process of gradually flowing irrigation water from the head to the far end of the head, in the irrigation area with a large distance between the two ends, the underground water needs to flow from one end to the other end, and it takes a long time, and at the same time, the irrigation water is infiltrated in the middle and lower part of the ground surface, which greatly increases the irrigation water volume of the underground water, especially in the dry period of the ground surface, the quantitatively stored underground water cannot complete the irrigation of the large-area farmland, and part of the farmland area cannot be effectively irrigated, which will affect the crop yield;

[0005] 2. In the irrigation method of flowing irrigation water from one end of the head to the other end, when the irrigation water reaches the far end of the head and stops pumping, the flowing ground surface water in the ground surface irrigation length is still in the flowing state, and when the part of the flowing water reaches the other end of the head, due to the large water volume, it will jump to the outside of the irrigation area (i.e. the non-planting area), causing great waste of underground water, which cannot be fully used for effective irrigation of other non-irrigated areas, and causing waste of water pump energy consumption;

[0006] 3. Since irrigation is from one side of the head to the other side, the water flow continues to flow through the place where the water flows to achieve complete irrigation of the non-irrigated area, and in this process, the area where the water flows has been irrigated, and the irrigation water is fully infiltrated into the ground surface, so that the water flow impacts the ground surface of the part (the area shown in a in the middle) in the process of continuous water flow, which is the impact of the ground surface soil towards the far end of the irrigation, causing the unevenness of the ground surface, affecting the later crop planting and irrigation operation; secondly, after the impact of the ground surface soil, the ground surface not impacted by the water flow will be hardened due to the impact of the water flow, which is not conducive to the planting and growth of the crops, and the cost of land plowing needs to be increased. Figure 1 SUMMARY

[0007] ​​In view of the above problems, the present application aims to provide a groundwater irrigation control system and method, which controls from the aspects of groundwater storage and later irrigation use, solves the problems of waste of groundwater, long irrigation time and impact on surface soil caused by excessive infiltration in the current traditional irrigation method, and finally realizes the purpose of effective control of quantitative groundwater.

[0008] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a groundwater irrigation control system, which comprises a plurality of groundwater wells distributed in farmland and an irrigation water pump arranged in each groundwater well, characterized in that: each irrigation water pump is connected with an irrigation pipe which can be extended to the far end of the irrigation direction of the farmland, and the irrigation port of the irrigation pipe can be retracted to the irrigation water pump.

[0009] Preferably, the irrigation pipe is an arc-shaped structure with an open top, and a coiling mechanism for retracting the irrigation pipe is arranged near the irrigation water pump.

[0010] Preferably, an in-well liquid level limiting mechanism for limiting the liquid level of groundwater is arranged in each groundwater well.

[0011] Preferably, the in-well liquid level limiting mechanism is a well lid embedded in the groundwater well and liftable, and the sidewall of the well lid is sealingly connected with the well wall of the groundwater well.

[0012] A groundwater irrigation control method, characterized in that it comprises the following steps:

[0013] S1, groundwater gathering

[0014] In the initial stage of gradual increase of surface water, the height of the well lid of each groundwater well is adjusted to be the same as the liquid level of a groundwater well with the highest liquid level;

[0015] S2, groundwater level adjustment

[0016] According to the increase of the liquid level in the groundwater well, the height of each well lid is uniformly adjusted;

[0017] S3, irrigation preparation

[0018] In the irrigation area, the irrigation pipe is unfolded and stretched to the far end of the irrigation area along the irrigation direction, and the groundwater is injected into the end near the irrigation pipe by the irrigation water pump;

[0019] S4, irrigation

[0020] When the water level injected into the irrigation pipe is higher than the side, the groundwater jumps along the length of the irrigation pipe and from both sides to the surface of the irrigation area.

[0021] The present application has the following advantages:

[0022] 1. The well covers provided by the irrigation system can achieve a balanced increase in the amount of water stored in the groundwater wells, so that multiple groundwater wells have roughly the same water storage capacity. In the later stage of irrigation, each groundwater well can have a balanced irrigation area, reducing the difficulty of groundwater diversion.

[0023] 2. The irrigation pipe can be extended to the far end of the ground surface before irrigation. Groundwater can flow through the irrigation pipe to the far end of the ground surface and be irrigated simultaneously along the entire length of the irrigation pipe and the ground surface. This irrigation pipe can solve the problem of irrigation time spent when irrigation water flows through the entire length of the ground surface and infiltrates excessively. It also solves the problem of groundwater waste caused by excessive infiltration and the problem of surface impact, ultimately achieving effective control of a fixed amount of groundwater. Attached Figure Description

[0024] Figure 1 This is a diagram illustrating conventional farmland irrigation as described in this invention.

[0025] Figure 2 This is a cross-sectional view of the irrigation pipe of the present invention.

[0026] Figure 3 This is a side view of the irrigation pipe of the present invention.

[0027] Figure 4 This is an illustration of the irrigation control system of the present invention.

[0028] Figure 5 This is a diagram illustrating the retraction of the irrigation pipe coil according to the present invention.

[0029] Figure 6 This is a top view of the structure of the manhole cover and the groundwater well of the present invention.

[0030] Figure 7 This is a diagram illustrating the groundwater storage regulation method of the present invention.

[0031] Figure 8 This is a schematic diagram of the winding mechanism of the present invention.

[0032] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point A in the middle.

[0033] In the diagram: 1-Groundwater well; 2-Irrigation pump; 3-Irrigation pipe; 31-Baffle; 4-Well cover; 41-Sealing ring; 5-Roller; 6-Support; 7-Guide roller; 8-Irrigation canal. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Referring to the accompanying drawings Figures 2-9 The underground water irrigation control system shown in the figure, the control system includes a plurality of underground water wells 1 distributed in the farmland, and an irrigation water pump 2 arranged in each underground water well 1. At present, when using underground water for farmland irrigation, an irrigation channel is arranged at the head of the farmland, and an opening is provided at each head. The underground water collected in the irrigation channel is pumped by the irrigation water pump 2 to the irrigation channel, and flows from the opening to the irrigation farmland, until it flows to the far end of the irrigation farmland (the other end of the head), that is, the complete irrigation of the irrigation area is completed.

[0036] To solve the problems of the current conventional use of underground water for irrigation, such as the farmland area not being effectively irrigated, causing great waste of underground water, causing waste of water pump energy, causing unevenness of the ground surface, and being not conducive to the planting and growth of crops, the present application provides an underground water irrigation control system, which has an irrigation pipe 3 extending to the far end of the irrigation direction of the farmland on each irrigation water pump 2, and the irrigation port of the irrigation pipe 3 can be retracted to the irrigation water pump 2. Its working principle is: before irrigation, the irrigation pipe 3 is stretched to the far end of the ground surface, and the irrigation water pump 2 continuously injects underground water at one end of the irrigation pipe 3. The underground water can flow to the far end of the ground surface through the irrigation pipe 3, and the entire irrigation pipe 3 and the ground surface are irrigated synchronously. Therefore, the irrigation pipe can solve the problem of the irrigation time spent by the irrigation water flowing through the entire length of the ground surface and excessive infiltration, and also solve the problem of excessive infiltration causing waste of underground water, and also solve the problem of ground impact. Finally, the effective control of the quantitative underground water is realized.

[0037] In order to further realize the synchronous irrigation effect of the entire ground surface length, as shown in Figure 2 , 4 The irrigation pipe 3 is an arc-shaped structure with a top opening. When the amount of water injected into the irrigation pipe increases and exceeds the top opening of the irrigation pipe 3, the underground water jumps to the outside of the ground surface along the length direction of the two sides of the irrigation pipe 3 to realize synchronous irrigation along the length of the ground surface. During the water injection process along the length direction of the irrigation pipe 3, the irrigation pipe 3 can effectively solve the problem of slow irrigation water flow caused by serious underground water infiltration in the current traditional irrigation, thereby greatly solving the problem of underground water resources, and further realizing the complete irrigation of the entire irrigation area.

[0038] In order to collect and transfer the irrigation pipe to the next irrigation area as soon as possible after the above irrigation is completed, a coiling mechanism is arranged near the irrigation water pump 2 to retract the irrigation pipe 3. Preferably, the coiling mechanism includes a coiling roller attached to the inner wall of the irrigation pipe 3, which is driven by a motor to realize rapid coiling of the irrigation pipe 3. In order to assist the smooth coiling of the irrigation pipe 3 and avoid deflection during the coiling process, as shown in Figures 8-9As shown, guide rollers are installed on the supports on both sides of the winding roller, which are embedded in the side of the irrigation pipe 3. The guide rollers guide the irrigation pipe 3 to avoid skewing and collapsing when it is coiled, thus preventing it from being unwound again.

[0039] Due to the influence of surface water, there are multiple groundwater wells 1 with different groundwater levels. The groundwater in the well with the lower level of groundwater storage cannot irrigate a large area. It is necessary to extend the irrigation pipe 3 to the irrigation pump 2 of the well with the higher level of groundwater storage to "borrow" water for irrigation, which will increase the difficulty of irrigation. Therefore, in order to solve this problem, each of the groundwater wells 1 is equipped with a well level limiting mechanism to limit the groundwater level. This mechanism is used to ensure that each groundwater well 1 stores a similar amount of groundwater, so as to solve the problem of uneven groundwater storage in different groundwater wells 1 and the impact on irrigation.

[0040] Specifically, such as Figures 6-7 As shown, the liquid level limiting mechanism in the well is a well cover 4 that is embedded in the groundwater well 1 and can be raised and lowered. Preferably, the top of the well cover 4 is equipped with a hydraulic cylinder to drive its raising and lowering. In the groundwater well 1 with a high storage capacity, it can effectively limit the further increase of water volume, so that the groundwater flows to the groundwater well 1 with a lower storage capacity to achieve the same level of water volume storage.

[0041] Preferably, the sidewall of the manhole cover 4 is sealed to the well wall of the groundwater well 1. Specifically, a sealing ring is embedded in the side circumference of the manhole cover 4 and is in contact with the sidewall of the groundwater well 1. Under the downward pressure of the manhole cover 1, the amount of water stored in each groundwater well 1 can be effectively limited.

[0042] The groundwater irrigation management method for the above-mentioned irrigation system includes the following steps:

[0043] S1, groundwater convergence

[0044] During the non-irrigation period, it is necessary to first store surface water (such as rainwater). Therefore, in the initial stage when surface water gradually increases, surface water flows underground to each groundwater well 1. Due to the unevenness in the direction and volume of the flow, in order to ensure that each groundwater well 1 stores a considerable amount of groundwater so that each groundwater well 1 can irrigate a considerable area around it during later irrigation, and to solve the problem of large differences in water storage in different groundwater wells 1, which leads to a reduction in the irrigation area of ​​groundwater wells with smaller storage and the need to divert water from other groundwater wells 1, the specific operations in the groundwater collection stage are as follows:

[0045] The height of each well cover 4 of the groundwater well 1 needs to be adjusted to the same level as the liquid surface of the groundwater well with the highest liquid surface. By limiting the liquid surface of the groundwater well with the highest liquid surface through the well cover 4, the water in other groundwater wells 1 with lower liquid surfaces during storage will gradually accumulate to the same level as the highest liquid surface, so that multiple groundwater wells 1 have the same amount of stored water.

[0046] S2, groundwater level adjustment

[0047] When the amount of surface water continues to increase (rain continues to increase), the height of each well cover 4 is uniformly adjusted according to the increase in the liquid level in the groundwater well 1, and the increase in the amount of water stored in the groundwater well 1 continues to be synchronized until the liquid level of the groundwater no longer uniformly rises, thereby achieving multiple groundwater wells 1 with substantially the same amount of stored water, and obtaining a balanced irrigation area for each groundwater well 1 during later irrigation, reducing the difficulty of drainage.

[0048] S3, irrigation preparation

[0049] In the irrigation area, the irrigation pipe 3 is unfolded and stretched along the irrigation direction to the far end of the irrigation area, and the groundwater is injected into the end close to the irrigation pipe 3 by the irrigation water pump 2. The injected groundwater flows along the irrigation pipe 3 from one end of the ground to the other end. In this process, the infiltration of groundwater into the ground surface is limited by the irrigation pipe 3, which greatly improves the flow rate of irrigation water in the ground surface compared to the current traditional irrigation method.

[0050] Since the irrigation pipe 3 used in the present application is in a circular arc structure, it is convenient for groundwater flow and easy to coil after use. After it is laid in the farmland, it is in a circular arc structure, so it can be selectively supported by soil blocks on both sides at a certain distance during manual uncoiling to avoid the problem of early side irrigation of irrigation water caused by left and right tilting during water flow, and the water flow cannot be guided to the far end of the ground.

[0051] S4, irrigation

[0052] When the water flow reaches the other end of the irrigation pipe 3 (the far end of the head), the water flow is blocked (preferably, a vertical baffle is arranged at the end), the liquid level in the irrigation pipe 3 gradually rises, and when the water level in the irrigation pipe 3 is higher than the side edge, the underground water jumps along the length and from the two sides of the side edge to the surface of the irrigation area, thereby realizing synchronous irrigation in the irrigation length, solving the problem of serious infiltration under traditional irrigation, saving irrigation time, effectively saving underground water resources, expanding the irrigation area, and reducing the impact on the surface soil. While the current regional irrigation is completed, the irrigation pipe 3 can be quickly coiled to the head by the coiling mechanism. During the coiling process, there is still water below the side edge in the irrigation pipe 3, in order to drain the remaining water in the irrigation pipe 3 to the field, the baffle is hingedly connected to the end of the irrigation pipe 3, and when the irrigation pipe is recovered, the baffle 3 can be opened to the horizontal position to drain the remaining water in the irrigation pipe 3. At the same time, with the coiling of the irrigation pipe 3, the remaining water in the irrigation pipe 3 can be evenly drained to the farmland along the irrigation length, and the remaining water cannot be gathered at the far end of the head and jumped to the outside of the farmland irrigation area to cause waste of water resources.

[0053] The principle of the application is that when the underground water pipe control system provided by the application is used to irrigate farmland, first, during the non-irrigation period, the surface water flow (such as rainwater) needs to be stored, and the specific operation is as follows: the height of each well cover 4 of the underground water well 1 needs to be adjusted to the same height as the liquid level of the underground water well with the highest liquid level. By limiting the liquid level of the underground water well 1 with the highest liquid level through the well cover 4, during the storage process, the underground water wells 1 with lower liquid levels will gradually accumulate water to the same level as the highest liquid level, so as to realize that multiple underground water wells 1 have the same water storage capacity.

[0054] When the surface water continues to increase (rain continues to increase), according to the increase of the liquid level of the underground water well 1, the height of each well cover 4 is uniformly adjusted, and the increase of the water storage capacity of the underground water well 1 is continuously and synchronously carried out, so that the liquid level of the underground water no longer uniformly rises, thereby realizing that multiple underground water wells 1 have substantially the same water storage capacity, and each underground water well 1 has an equal irrigation area during later irrigation, thereby reducing the difficulty of drainage.

[0055] In the irrigation area, the irrigation pipe 3 is unfolded and stretched to the far end of the irrigation area along the irrigation direction, underground water is injected into one end close to the irrigation pipe 3 by the irrigation water pump 2, and the injected underground water flows along the irrigation pipe 3 from one end to the other end of the head.

[0056] When the water flow reaches the other end of the irrigation pipe 3 (the distal end of the head), the water flow is blocked, the liquid level in the irrigation pipe 3 gradually rises, and when the water level in the irrigation pipe 3 is higher than the side, the underground water jumps along the length and from the two sides of the side to the surface of the irrigation area, thereby realizing synchronous irrigation in the irrigation length, solving the problem of serious infiltration under traditional irrigation, saving irrigation time, effectively saving underground water resources, expanding irrigation area, and reducing the impact on the surface soil.

[0057] The basic principles, main features and advantages of the present application are shown and described above. The present application can also have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A groundwater irrigation management system, comprising a plurality of groundwater wells (1) distributed in farmland, and an irrigation pump (2) installed in each groundwater well (1), characterized in that: Each irrigation pump (2) is connected to an irrigation pipe (3) that can extend to the far end in the direction of farmland irrigation, and the irrigation port of the irrigation pipe (3) can be retracted to the irrigation pump (2). The irrigation pipe (3) is an arc-shaped structure with an open top. A coiling mechanism for retracting the irrigation pipe (3) is provided near the irrigation pump (2). The coiling mechanism includes a roller that fits against the inner wall of the irrigation pipe (3). The roller is driven by a motor to quickly coil the irrigation pipe (3). Guide rollers embedded in the sides of the irrigation pipe (3) are provided on the supports on both sides of the roller. When the amount of water injected into the irrigation pipe (3) increases and exceeds the open top of the irrigation pipe (3), the groundwater jumps synchronously to the surface of the ground along the length of both sides of the irrigation pipe (3) to achieve synchronous irrigation along the length of the ground surface. Each of the underground water wells (1) is provided with an in-well liquid level limiting mechanism to limit the groundwater level. The in-well liquid level limiting mechanism is a well cover (4) that is embedded in the underground water well (1) and can be raised and lowered. A hydraulic cylinder is provided on the top of the well cover (4) to drive its raising and lowering. The side wall of the well cover (4) is sealed to the well wall of the underground water well (1).

2. A method for groundwater irrigation management using the system described in claim 1, characterized in that, Includes the following steps: S1, groundwater convergence In the initial stage of the gradual increase of surface water, the height of the well cover (4) of each groundwater well (1) is adjusted to be the same as the liquid level of a groundwater well (1) with the highest liquid level. S2, Groundwater Level Regulation Based on the increase in the liquid level in the groundwater well (1), the height of each well cover (4) is uniformly adjusted; S3, Irrigation Preparation Within the irrigation area, the irrigation pipe (3) is unfolded and extended along the irrigation direction to the far end of the irrigation area, and groundwater is injected into the end near the irrigation pipe (3) by the irrigation water pump (2); S4, Irrigation When the water level injected into the irrigation pipe (3) is higher than its side, the groundwater jumps along its length and from its two sides into the surface of the irrigation area for irrigation.

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