CN101392519B - Agricultural land concealed pipe water level water quality co-controlling drainage - Google Patents
Agricultural land concealed pipe water level water quality co-controlling drainage Download PDFInfo
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- CN101392519B CN101392519B CN2008101548592A CN200810154859A CN101392519B CN 101392519 B CN101392519 B CN 101392519B CN 2008101548592 A CN2008101548592 A CN 2008101548592A CN 200810154859 A CN200810154859 A CN 200810154859A CN 101392519 B CN101392519 B CN 101392519B
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Abstract
The invention discloses a water level and quality jointly controlled drain device of a farmland underground drain pipe, relates to a water level and quality jointly controlled drain device of a gate of a farmland underground drain pipe, and belongs to the technical field of agricultural soil and water engineering. The upper end of a floating ball device is provided with a spring piece control device which is connected with a water quality detection device, and the lower end of the floating ball device is connected with the gate which is provided with an underground pipe transversely, and the height of the gate is greater than that of the underground pipe. The water level and quality jointly controlled drain device can control the underground water level according the growth needs of crops, and control the automatic opening of the gate and drainage volume according to the water level and quality of underground water of a farmland, thereby ensuring that a soil reservoir can give a full play to a water storage and discharge function, implementing underground water management and preventing widespread pollution due to nitrogen and phosphorus loss in the farmland. The drain device has the advantages of realizing the multi-target control of farmland drainage, reducing agricultural non-point source pollution, along with simple structure and easy popularization.
Description
Technical field
The present invention relates to control water level, the water quality co-controlling drainage of farmland hidden tube drainage gate, belong to the Agricultural Water-Soil Engineering technical field.
Background technology
At present, the farmland hidden tube drainage mouth mostly is open type or manual simplified gate is set that the hidden pipe degree of depth has determined the farmland bury of groundwater, can't implement the control draining according to farmland groundwater table and water quality, influences the efficient utilization of water resource and causes pollution of area source easily.
Summary of the invention
The object of the invention provides a kind of agricultural land concealed pipe water level water quality co-controlling drainage, can implement draining control in agricultural field to the requirement and the quality of groundwater of underground water level according to crop growth.
The present invention adopts following technical scheme for achieving the above object:
The present invention includes floating ball device, shell fragment control device, water quality measure and control device, hidden pipe, gate, the upper end of floating ball device is provided with the shell fragment control device, the shell fragment control device is connected with the water quality measure and control device, the lower end of floating ball device connects gate, along the horizontally set hidden pipe of gate, the height of described gate is greater than the height of hidden pipe.
Floating ball device of the present invention comprises first ball float, second ball float, connecting rod, and connecting rod is serially connected first ball float, second ball float, and second ball float is positioned at the top of first ball float, and the upper end of connecting rod is connected with the shell fragment control device, and the lower end of connecting rod is connected with gate.
Shell fragment control device of the present invention comprises U-shaped control flume, shell fragment, magnetic patch, electromagnetic block, guide rail, the lower end of magnetic patch is provided with guide rail, one side of magnetic patch is oppositely arranged electromagnetic block, electromagnetic block is connected with the water quality measure and control device, the opposite side of magnetic patch connects shell fragment, shell fragment is oppositely arranged the U-shaped control flume away from an end of magnetic patch, and the enclosure portion of U-shaped control flume is connected with connecting rod, and the opening portion and the shell fragment of U-shaped control flume are oppositely arranged.
Water quality measure and control device of the present invention comprises electrical conductivity controller, hidden pipe conductivity sensor, gutter conductivity sensor, the hidden pipe conductivity sensor is arranged on the left side of above-mentioned gate water (flow) direction, and the hidden pipe conductivity sensor is connected with the electrical conductivity controller by lead; The gutter conductivity sensor is arranged in the gutter, and the gutter conductivity sensor is connected with the electrical conductivity controller by lead; The electrical conductivity controller is connected with electromagnetic block by lead.
The present invention adopts technique scheme, compared with prior art has following advantage:
1, the present invention can require the control groundwater table according to crop growth, by setting the height of ball float, implements two kinds of groundwater table management.When underground water level is higher than the maximum anti-accumulated water of crop position, gate opening water discharge automatically under the buoyancy of ball float, when underground water level was lower than suitable groundwater level, gate was closed automatically and is stopped draining.
2, the present invention can be according to plant growth needs control displacement, performance soil reservoir drainage effect.Can rationally regulate and control control farmland stain evil to soil moisture by the control draining; Can effectively reduce displacement,, play the effect of similar sub-irrigation, improve water utilization rate, help improving crop growth environment, improve output by storing underground water.
3, the present invention can prevent that farmland nitrogen, phosphorus loss from causing pollution of area source.Because effects such as soil water seepage, leaching, enter in the agricultural drain of subsurface system and contain pollutants such as a large amount of nitrogen, phosphorus, this device is an electric conductivity difference by the pollutant levels difference of auto-measuring farmland underground water and agricultural drain ditch water body, in conjunction with farmland groundwater table situation, can optimize the selection drainage period, prevent that high concentration underground water from effluxing, thereby reduced the loss of farmland nitrogen, phosphorus, help reducing the output of agricultural nonpoint source pollution.The corresponding absorption rate that has improved nitrogen, phosphorus.
4, the present invention is simple in structure, is easy to large tracts of land and promotes.Because China region is vast, farmland area varies in size, be in to cut apart plantation, and the crop varieties difference of plantation, it is different requiring the bury of groundwater of control.Because the randomness of rainfall and the variation of rainfall intensity can not come to operate in good time, accurately gate by manpower in rainfall.The present invention has realized that jointly controlling gate according to farmland groundwater table and quality of groundwater opens automatically, realizes the multi objective control of agricultural drain, can reduce the output of agricultural nonpoint source pollution.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the A-A directional profile figure of Fig. 1.
Fig. 3 is the structural representation of shell fragment control device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
As shown in Figure 1, the present invention includes floating ball device 1, shell fragment control device 2, water quality measure and control device 3, hidden pipe 4, gate 5, the upper end of floating ball device 1 is provided with shell fragment control device 2, shell fragment control device 2 is connected with water quality measure and control device 3, the lower end of floating ball device 1 connects gate 5, along the horizontally set hidden pipe 4 of gate 5, the height of described gate 5 is greater than the height of hidden pipe 4.
Floating ball device 1 of the present invention comprises first ball float 11, second ball float 12, connecting rod 13, connecting rod 13 is serially connected first ball float 11, second ball float 12, second ball float 12 is positioned at the top of first ball float 11, the upper end of connecting rod 13 is connected with shell fragment control device 2, and the lower end of connecting rod 13 is connected with gate 5.
Shell fragment control device 2 of the present invention comprises U-shaped control flume 21, shell fragment 22, magnetic patch 23, electromagnetic block 24, guide rail 25, the lower end of magnetic patch 23 is provided with guide rail 25, one side of magnetic patch 23 is oppositely arranged electromagnetic block 24, electromagnetic block 24 is connected with water quality measure and control device 3, the opposite side of magnetic patch 23 connects shell fragment 22, shell fragment 22 is oppositely arranged U-shaped control flume 21 away from an end of magnetic patch 23, and the enclosure portion of U-shaped control flume 21 is connected with connecting rod 13, and the opening portion of U-shaped control flume 21 and shell fragment 22 are oppositely arranged.
Water quality measure and control device 3 of the present invention comprises electrical conductivity controller 31, hidden pipe conductivity sensor 32, gutter conductivity sensor 33, hidden pipe conductivity sensor 32 is arranged on the left side of above-mentioned gate 5 water (flow) directions, and hidden pipe conductivity sensor 32 is connected with electrical conductivity controller 31 by lead; Gutter conductivity sensor 33 is arranged in the gutter, and gutter conductivity sensor 33 is connected with electrical conductivity controller 31 by lead; Electrical conductivity controller 31 is connected with electromagnetic block 24 by lead.
As can be seen from Figure 1, when underground water level was lower than minimum control water level (water level 1), gate was in closed condition under deadweight, and at this moment, underground water is constantly saved, and water level continues to raise.When underground water level is positioned between minimum control water level (water level 1) and the maximum anti-accumulated water position (water level 2), first ball float 11 will produce buoyancy, electrical conductivity (nitrogen, the phosphorus concentration) sensor 32,33 that meanwhile is arranged in hidden pipe 4 and gutter passes to electrical conductivity (nitrogen, phosphorus concentration) controller 31 to compare with its data of collecting.When underground water level when water level 1 begins to rise, if the water body electrical conductivity is less than or equal to water body electrical conductivity in the gutter but greater than the preset value in the controller in the hidden pipe 4, at this moment, electrical conductivity controller 31 will start shell fragment control device 2, shell fragment 22 inserts the U-shaped control flume 21 at connecting rod top, blocks floating ball device 1, and ball float can't be risen, gate 5 can't be opened, and groundwater table will continue to raise.
When underground water level from minimum control water level (water level 1) when beginning to rise, if the water body electrical conductivity is greater than water body electrical conductivity in the gutter in the hidden pipe 4, electrical conductivity controller 31 also will start shell fragment control device 2, shell fragment 22 inserts the U-shaped control flume 21 at connecting rod top, block floating ball device 1, ball float can't be risen, and gate 5 can't be opened, and groundwater table will continue to raise.If the water body electrical conductivity is less than or equal to water body electrical conductivity in the gutter in the hidden pipe 4, and less than preset value (threshold value), electrical conductivity controller 31 will start shell fragment control device 2 at this moment, make shell fragment 22 leave the U-shaped control flume 21 at ball float top, then gate 5 is opened and is carried out draining and drain into water level 1 owing to the buoyancy of ball float.
Though if in drainage procedure, occur in the hidden pipe 4 the water body electrical conductivity greater than water body electrical conductivity in water body electrical conductivity or the hidden pipe in the gutter smaller or equal to water body electrical conductivity in the gutter, but during greater than the preset value situation in the electrical conductivity controller 31, shell fragment 22 ejects and is positioned at U-shaped control flume 21 bottoms, at this moment, shell fragment control device 2 is inoperative, groundwater table decreasing is after minimum control water level (water level 1), and the gravity of floating ball device will make shell fragment 22 enter in the U-shaped control flume 21.
The present invention also can make shell fragment 22 enter U-shaped control flume 21 in case draining by manual intervention.When underground water level surpassed water level 2, the buoyancy that first ball float 11 and second ball float 12 are produced will be greater than the elastic force of shell fragment 22, and ball float rises and drives gate 5 opening water discharges, in order to avoid crops are steeped.
The present invention has utilized mechanics principle dexterously, has realized that the associating of two water levels of agricultural drain and water quality is controlled automatically, especially two floating ball rod valve systems and water level water quality co-controlling drainage combination.
Claims (1)
1. agricultural land concealed pipe water level water quality co-controlling drainage, it is characterized in that comprising floating ball device (1), shell fragment control device (2), water quality measure and control device (3), hidden pipe (4), gate (5), the upper end of floating ball device (1) is provided with shell fragment control device (2), shell fragment control device (2) is connected with water quality measure and control device (3), the lower end of floating ball device (1) connects gate (5), along the horizontally set hidden pipe (4) of gate (5), the height of described gate (5) is greater than the height of hidden pipe (4);
Above-mentioned floating ball device (1) comprises first ball float (11), second ball float (12), connecting rod (13), connecting rod (13) is serially connected first ball float (11), second ball float (12), second ball float (12) is positioned at the top of first ball float (11), the upper end of connecting rod (13) is connected with shell fragment control device (2), and the lower end of connecting rod (13) is connected with gate (5);
Above-mentioned shell fragment control device (2) comprises U-shaped control flume (21), shell fragment (22), magnetic patch (23), electromagnetic block (24), guide rail (25), the lower end of magnetic patch (23) is provided with guide rail (25), one side of magnetic patch (23) is oppositely arranged electromagnetic block (24), electromagnetic block (24) is connected with water quality measure and control device (3), the opposite side of magnetic patch (23) connects shell fragment (22), shell fragment (22) is oppositely arranged U-shaped control flume (21) away from an end of magnetic patch (23), the enclosure portion of U-shaped control flume (21) is connected with connecting rod (13), and the opening portion of U-shaped control flume (21) and shell fragment (22) are oppositely arranged;
Above-mentioned water quality measure and control device (3) comprises electrical conductivity controller (31), hidden pipe conductivity sensor (32), gutter conductivity sensor (33), hidden pipe conductivity sensor (32) is arranged on the left side of above-mentioned gate (5) water (flow) direction, and hidden pipe conductivity sensor (32) is connected with electrical conductivity controller (31) by lead; Gutter conductivity sensor (33) is arranged in the gutter, and gutter conductivity sensor (33) is connected with electrical conductivity controller (31) by lead; Electrical conductivity controller (31) is connected with electromagnetic block (24) by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101548592A CN101392519B (en) | 2008-10-17 | 2008-10-17 | Agricultural land concealed pipe water level water quality co-controlling drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101548592A CN101392519B (en) | 2008-10-17 | 2008-10-17 | Agricultural land concealed pipe water level water quality co-controlling drainage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101392519A CN101392519A (en) | 2009-03-25 |
| CN101392519B true CN101392519B (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101548592A Expired - Fee Related CN101392519B (en) | 2008-10-17 | 2008-10-17 | Agricultural land concealed pipe water level water quality co-controlling drainage |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793018A (en) * | 2010-03-16 | 2010-08-04 | 武汉大学 | Water level control pipe for farmland subsurface water control |
| CN102155008B (en) * | 2011-05-11 | 2012-07-04 | 中国水利水电科学研究院 | Concealed pipe controlled drainage device |
| CN106365320A (en) * | 2016-10-26 | 2017-02-01 | 扬州大学 | Drained water recycling and nitrogen and phosphorus cascaded percolation, blocking and removal system for paddy field on southern gentle slope land and application method of system |
| CN107268550B (en) * | 2017-08-10 | 2022-09-27 | 中国农业科学院农田灌溉研究所 | Self-adaptive concealed pipe drainage control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041194A (en) * | 1988-09-16 | 1990-04-11 | 吴中威 | Flood-controlling and soil-conserving irrigation and drainage system |
| CN101078210A (en) * | 2007-04-17 | 2007-11-28 | 河海大学 | Adjustable agricultural drain water level control weir |
-
2008
- 2008-10-17 CN CN2008101548592A patent/CN101392519B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041194A (en) * | 1988-09-16 | 1990-04-11 | 吴中威 | Flood-controlling and soil-conserving irrigation and drainage system |
| CN101078210A (en) * | 2007-04-17 | 2007-11-28 | 河海大学 | Adjustable agricultural drain water level control weir |
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| Publication number | Publication date |
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| CN101392519A (en) | 2009-03-25 |
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Granted publication date: 20100609 Termination date: 20161017 |