CN102172202A - Device for automatically controlling irrigation and water draining of paddy field - Google Patents

Device for automatically controlling irrigation and water draining of paddy field Download PDF

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Publication number
CN102172202A
CN102172202A CN2011100632455A CN201110063245A CN102172202A CN 102172202 A CN102172202 A CN 102172202A CN 2011100632455 A CN2011100632455 A CN 2011100632455A CN 201110063245 A CN201110063245 A CN 201110063245A CN 102172202 A CN102172202 A CN 102172202A
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China
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water
water level
irrigation
paddy field
switch board
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CN2011100632455A
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CN102172202B (en
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金秋
邵孝侯
谈俊益
胡秀君
徐姗姗
文涛
李圆圆
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Hohai University HHU
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Hohai University HHU
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture

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Abstract

The invention provides a device for automatically controlling irrigation and water draining of paddy field, and is characterized by comprising a water level control cabinet. A water inlet pipe and a water outlet pipe are arranged at the side wall of the water level control cabinet; an open end through which the water outlet pipe stretches towards the inside of the water level control cabinet is provided with a sealing cover; the sealing cover is connected to the bottom of a floating ball through a digging rope; an electromagnetic relay is arranged at the top of the water level control cabinet and connected with a water pump; an adjusting plate is fixed at the inner side wall of the water level control cabinet; the adjusting plate is contacted with a contact switch of the electromagnetic relay. The invention has the advantages of conservation of time and labour, is simple in operation and adjusts water level of the paddy field according to growth demands of rice, maximally utilizes rainfall and reduces irrigation water use. By controlling water draining, the device provided by the invention can effectively prevent crop water-logging, improve Saline-sodic soils while reducing output of nutrient substances such as nitrogen, phosphorus and the like due to agricultural drainage and agricultural pollution reducation.

Description

Paddy field irrigation and drainage automaton
Technical field
The present invention relates to the paddy field water-saving irrigation and the control water discharge technology in Agricultural Water-Soil Engineering field, it is according to the law of needing the water of crops, minimum irrigation water capacity with necessity is controlled at desired height with the field water level, and relatively easily irrigate and draining, reach the purpose of water saving, control salt, minimizing recruitment.
Background technology
At present, shortage of water resources, water environment degradation have become one of reason that influences China's quality of residents'life, restriction economic development, and along with population increase and industrial development, maximum in the future breach will be an agricultural water.Simultaneously, higher fertilizer and pesticide amount of application, irrational field irrigation draining, produced serious pollution and secondary salinization of soil problem, so efficient the utilization and agricultural sustainable development of desire realization agricultural water resources, water-saving irrigation, control draining will become the significant problem that is worth social concerns.
The agricultural water-saving irrigation technology that abroad begins one's study the seventies in 20th century mainly is according to the different demands of different vegetative stage crops to moisture, adopts the irrigation pattern of optimizing to reduce irrigation frequency and duty.Because each physiology course of plant has nothing in common with each other to the reaction of water deficit, crop is stood appropriate water stress in some stage, has certain adaptability and repellence effect for limited lack of water.Therefore, reaction based on the plant physiology process under the water stress condition, irrigation patterns such as control irrigation, insufficient irrigation, readjust-loss irrigation, accurate irrigation have been proposed, promptly by the interim moisture of artificial adjustment, realize the purpose of water saving and high-efficient irrigation, traditional abundance of water high yield type is irrigated turn to the excellent product type of water saving to irrigate.
The control water discharge technology mainly is that the outlet in the field drainage system is provided with control device, by the subterranean water level that control device is regulated the field, reaches drainage water reuse, administers the stain evil and salinization of soil, minimizing draining are let out the purpose that the district pollutes to holding.China has developed field control drainage equipment such as automatic hydrant, waterpower self-shooter, has proposed the criteria for groundwater table control of Different Crop different phase.
The number of times and the water yield that the field irrigation drainage arrangement is irrigated by control can make soil moisture be fully used, thereby reduce irrigation water capacity and regulation and control soil salt, alleviate the demand pressure to water resource.By the time of control draining, the intensity and the agricultural drain amount of draining, can reduce the output of nitrogen in the agricultural drain, phosphorus nutrient, improve draining water quality, to improving the farmland water environment important effect is arranged.But the principle of at present common irrigation and drainage device is to adopt flashboard control field water level, water inlet and delivery port at control device is provided with valve simultaneously, need Artificial Control to pour water and draining, increased cost of labor, the multiple switching flashboard is easy to cause sealing bad and leak.And, when a large amount of rainfall of emergentness, be difficult to the water that the field is unnecessary and in time discharge, cause stain evil and the secondary salinization of soil of crop easily.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide the device of a kind of automatic control paddy field water level, solving the existing apparatus operation wastes time and energy, and irrigates and the untimely problem of draining.
In order to realize above-mentioned technical purpose, the present invention realizes by the following technical solutions:
Paddy field irrigation and drainage automaton, it is characterized in that: comprise the water level switch board, the sidewall of water level switch board is provided with water inlet pipe and drainpipe, and drainpipe stretches to the openend installation seal cover of water level switch board inside, and seal cover is connected to the bottom of ball float through stay cord; Electromagnetic relay is placed at water level switch board top, electromagnetic relay is connected with water pump, the madial wall secured adjusted plate of water level switch board, and adjustable plate contacts with the contact switch of electromagnetic relay, contact switch is made up of two parts up and down, and the lower part moves up and down with ball float.
Aforesaid paddy field irrigation and drainage automaton is characterized in that drainpipe openend installation sealing ring.
Aforesaid paddy field irrigation and drainage automaton is characterized in that the lateral wall water-level observation pipe in parallel of water level switch board.
Aforesaid paddy field irrigation and drainage automaton is characterized in that the end that drainpipe stretches to water level switch board inside upwards is bent into " L " shape.
When water level is lower than when pouring water stopping water level, water pump is poured water from the trend rice field by hydraulic pipeline; When water level rises to when pouring water stopping water level, water pump stops to pour water automatically.When running into heavy showers, when water level is higher than discharge level, the automatic draining of switch board; When water level was lower than discharge level, ball float descended, and the discharge outlet seal cover is sealed the mouth of pipe under deadweight and hydraulic pressure effect, stop draining.
Wet crop vegetative period water consumption very big, requirement to the paddy field water level in its different breeding time is also different, and device of the present invention can be controlled automatically according to the paddy growth demand and pour water and discharge level, utilizes rainfall to greatest extent, reduce irrigation water capacity, alleviate the demand pressure of water resource.Can effectively prevent simultaneously stain evil, improvement salinized soil, reduce the output of nitrogen, phosphorus nutrient in the agricultural drain, improve draining water quality, reduce widespread pollution from the overuse of fertilizers and pesticides in rural area.
Description of drawings
Fig. 1 is the structural representation of paddy field of the present invention irrigation and drainage device for automatically controlling;
Fig. 2 is the schematic layout pattern of paddy field irrigation and drainage device for automatically controlling of the present invention in the paddy field.
The explanation of critical piece in the accompanying drawing:
1 AC power, 2 water pumps, 3 electromagnetic relays, 4 contact switch, 5 ball floats, 6 adjustable plates, 7 stay cords, 8 seal covers, 9 water inlet pipes, 10 drainpipes, 11 stopping water levels of pouring water, 12 discharge levels, 13 water-level observation pipes, 14 switch boards, 15 pumping lines, 16 pump houses, 17 trunk lines, dual-purpose underground hidden pipe is arranged in 18 fillings that are embedded in the field.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Fig. 1 is the structural representation of paddy field of the present invention irrigation and drainage device for automatically controlling.With reference to shown in Figure 1, paddy field irrigation and drainage automaton comprises water level switch board 14, water pump 2 and hydraulic pipeline.The water level switch board comprises electromagnetic relay 3, contact switch 4, ball float 5, adjustable plate 6, stay cord 7, discharge outlet seal cover 8, water inlet pipe 9, drainpipe 10 and water-level observation pipe 13.Water inlet pipe and drainpipe are arranged on water level switch board sidewall bottom, and the end that drainpipe stretches to water level switch board inside upwards is bent into " L " shape, and the openend that makes progress is installed seal cover and sealing ring, and the top of seal cover is connected to the bottom of ball float through stay cord; Water level switch board inwall secured adjusted plate, adjustable plate contacts with the contact switch of electromagnetic relay, and electromagnetic relay is connected with the water pump 2 of pump house 16, is used for control of pump and opens or stop.The sidewall of water level switch board water-level observation pipe in parallel is the glass tube that outer wall indicates scale, is convenient to observe the water level of rice field and switch board.Water inlet pipe makes the water level switch board link to each other with trunk line, and the water level in the water level switch board is equal with the rice field water level all the time, and water level control is more accurate.
The discharge level 12 of water level switch board is by the stay cord control that connects ball float and discharge outlet seal cover, and pulling rope length is the distance of discharge level to discharge outlet, regulates the adjustable in length discharge level of stay cord, and the short more then discharge level of stay cord is low more, otherwise then high more.When running into heavy showers, when water level was higher than discharge level, ball float floated, and the stay cord tension with the pull-up of discharge outlet seal cover, is that the water in the rice field is discharged in the irrigation canals and ditches by drainpipe automatically in the water level switch board; When water level was lower than discharge level, seal cover can be sealed the mouth of pipe by auto-closing under deadweight and hydraulic pressure effect, stop draining.
The stopping water level 11 of pouring water of water level switch board is by the adjustable plate control that is fixed on the switch board inwall, the extreme lower position that adjustable plate can fixed contact switch the first half, and the height of adjustable plate is low more, and the stopping water level of pouring water is low more, otherwise then high more.Contact switch is the low tension breaker of control electromagnet, is made up of two parts up and down, followingly partly can move up and down with ball float, when water level is lower than when pouring water stopping water level, upper and lower two parts separate, and low-voltage circuit disconnects, and water pump is poured water from the trend rice field by hydraulic pipeline; When water level reaches when pouring water stopping water level, upper and lower two parts contact, low-voltage circuit is connected, and water pump quits work, and stops to pour water.Low-tension supply in the electromagnetic relay adopts dry cell, and the voltage of battery should be complementary with electromagnet wherein, and the water pump with low-voltage direct electric control High Level AC Voltage has improved security performance.
Fig. 2 is the schematic layout pattern of paddy field irrigation and drainage device for automatically controlling of the present invention in the paddy field.At first dual-purpose underground hidden pipe 18 is arranged in pre-buried filling in the farmland, is the perforated plastic bellows, and the degree of depth is 0.8 meter, and spacing is 10 meters, and each bellows all links to each other with trunk line 17.Pumping line 15 also links to each other with trunk line, when water pump is poured water, can directly water be injected underground hidden pipe, has reduced the waste of water resource effectively.Device of the present invention is fixed on the side of next door, farmland near escape canal, and the water inlet pipe of water level switch board links to each other with trunk line, and drainpipe feeds irrigation canals and ditches.
Need be provided with in advance and irrigate stopping water level and discharge level according to paddy rice in the interim requirement of different bearing during actual motion the paddy field water level.When water level rises to when pouring water stopping water level, contact switch two parts contact up and down, the low-voltage circuit of electromagnetic relay is connected, and water pump stops to pour water automatically.When running into heavy showers, when water level was higher than discharge level, the water in the rice field was discharged automatically by drainpipe; When water level is lower than discharge level, stop draining, realized the automatic irrigation and the draining in paddy field.
Above-mentioned embodiment does not limit technical scheme of the present invention in any form, and the technical scheme that mode obtained that every employing is equal to replacement or equivalent transformation all drops on protection scope of the present invention.

Claims (4)

1. paddy field irrigation and drainage automaton, it is characterized in that: comprise the water level switch board, the sidewall of water level switch board is provided with water inlet pipe and drainpipe, and drainpipe stretches to the openend installation seal cover of water level switch board inside, and seal cover is connected to the bottom of ball float through stay cord; Electromagnetic relay is placed at water level switch board top, electromagnetic relay is connected with water pump, the madial wall secured adjusted plate of water level switch board, and adjustable plate contacts with the contact switch of electromagnetic relay, contact switch is made up of two parts up and down, and the lower part moves up and down with ball float.
2. paddy field according to claim 1 irrigation and drainage automaton is characterized in that drainpipe openend installation sealing ring.
3. paddy field according to claim 1 irrigation and drainage automaton is characterized in that the lateral wall water-level observation pipe in parallel of water level switch board.
4. paddy field according to claim 1 irrigation and drainage automaton is characterized in that the end that drainpipe stretches to water level switch board inside upwards is bent into " L " shape.
CN2011100632455A 2011-03-16 2011-03-16 Device for automatically controlling irrigation and water draining of paddy field Expired - Fee Related CN102172202B (en)

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CN102524019A (en) * 2012-03-23 2012-07-04 谭宇霄 Full-automatic filtering and drainage system for big tree transplantation
CN103098661A (en) * 2013-01-31 2013-05-15 河海大学 Automatic oxygen therapy crop waterlogging reduction device based on farmland water level
CN104081906A (en) * 2014-07-18 2014-10-08 句容市茅山茶场 Soil waterlogging removing method
CN104351021A (en) * 2014-11-04 2015-02-18 无锡北斗星通信息科技有限公司 Intelligent rice drainage and irrigation system
CN104420502A (en) * 2013-08-19 2015-03-18 江苏嘉贤米业有限公司 Method for cycling use of water in ecological farmland
CN104597924A (en) * 2015-01-22 2015-05-06 河海大学 Adjustable fixed water level automatic control device
CN105052686A (en) * 2015-07-20 2015-11-18 中国科学院南京土壤研究所 Automatic control device for irrigation of paddy fields and using method of automatic control device
CN106438386A (en) * 2016-11-09 2017-02-22 四川农业大学 Centrifugal farmland automatic drainage device
CN106774475A (en) * 2017-01-20 2017-05-31 湘潭大学 A kind of equipment that irrigation canals and ditches artesian water automatic irrigation is used according to farmland water level depth
CN107750917A (en) * 2017-11-14 2018-03-06 郑州宇恒环保技术有限公司 Plant automatic irrigation and automatic drain system
CN108094157A (en) * 2018-01-29 2018-06-01 安徽理工大学 A kind of circular automatic benefit drainage arrangement
CN108552032A (en) * 2018-06-20 2018-09-21 夏庆 A kind of agriculture vertical architectural mode robotic watering unit of ecological circulation
CN108617478A (en) * 2018-04-26 2018-10-09 中国水稻研究所 A kind of quantitative row's of the filling control device in farmland
CN109440895A (en) * 2018-10-31 2019-03-08 张立新 A kind of paddy field automatic plumbing equipment
CN109526638A (en) * 2018-12-29 2019-03-29 重庆市合川区连丰生态农业发展有限公司 Rice Cropping technique
JP2019110832A (en) * 2017-12-25 2019-07-11 株式会社クボタ Field drainage faucet, field water storage management system, water storage management server and field water storage method
CN110150201A (en) * 2018-01-17 2019-08-23 铜仁学院 A kind of mountain area rice field fish culture water level management Field structure
CN113455356A (en) * 2021-07-09 2021-10-01 雷思高 Agricultural rice field water level protection device and application method thereof
CN114200971A (en) * 2021-11-19 2022-03-18 江苏大学 Water level control device suitable for paddy field
CN115088453A (en) * 2022-06-29 2022-09-23 杭州电子科技大学 Intelligent irrigation and drainage system for paddy field
CN115428711A (en) * 2022-10-10 2022-12-06 中国农业科学院农田灌溉研究所 Irrigation and drainage integrated device for multi-water-source cyclic utilization and drainage intelligent control
CN117882524A (en) * 2024-03-13 2024-04-16 兰州交通大学 Agricultural irrigation device used in saline soil environment

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621945A (en) * 1985-01-11 1986-11-11 Schafer Christopher E Head control stand
CN2783388Y (en) * 2005-03-09 2006-05-24 龚汉钦 Intelligent water level controller
CN2804208Y (en) * 2005-05-26 2006-08-09 努尔艾力·图尔地 Automatic water saving cistern of bathroom
CN2862671Y (en) * 2005-06-21 2007-01-31 浙江省农业科学院 Device for automatic control of crop irrigation
CN101103695A (en) * 2007-06-13 2008-01-16 西北农林科技大学 Pressure regulating type water and fertilizer irrigation control system for crop root zone
CN101660305A (en) * 2009-09-11 2010-03-03 河海大学 Field drainage control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621945A (en) * 1985-01-11 1986-11-11 Schafer Christopher E Head control stand
CN2783388Y (en) * 2005-03-09 2006-05-24 龚汉钦 Intelligent water level controller
CN2804208Y (en) * 2005-05-26 2006-08-09 努尔艾力·图尔地 Automatic water saving cistern of bathroom
CN2862671Y (en) * 2005-06-21 2007-01-31 浙江省农业科学院 Device for automatic control of crop irrigation
CN101103695A (en) * 2007-06-13 2008-01-16 西北农林科技大学 Pressure regulating type water and fertilizer irrigation control system for crop root zone
CN101660305A (en) * 2009-09-11 2010-03-03 河海大学 Field drainage control system

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102524019A (en) * 2012-03-23 2012-07-04 谭宇霄 Full-automatic filtering and drainage system for big tree transplantation
CN103098661A (en) * 2013-01-31 2013-05-15 河海大学 Automatic oxygen therapy crop waterlogging reduction device based on farmland water level
CN103098661B (en) * 2013-01-31 2015-07-29 河海大学 A kind of automatic oxygen based on farmland water level alleviates the device of crop stain evil
CN104420502A (en) * 2013-08-19 2015-03-18 江苏嘉贤米业有限公司 Method for cycling use of water in ecological farmland
CN104081906A (en) * 2014-07-18 2014-10-08 句容市茅山茶场 Soil waterlogging removing method
CN104351021A (en) * 2014-11-04 2015-02-18 无锡北斗星通信息科技有限公司 Intelligent rice drainage and irrigation system
CN104597924A (en) * 2015-01-22 2015-05-06 河海大学 Adjustable fixed water level automatic control device
CN104597924B (en) * 2015-01-22 2017-03-08 河海大学 Water level automatic control device can be set up
CN105052686B (en) * 2015-07-20 2017-07-04 中国科学院南京土壤研究所 A kind of automatic control device for water paddy irrigation and its application method
CN105052686A (en) * 2015-07-20 2015-11-18 中国科学院南京土壤研究所 Automatic control device for irrigation of paddy fields and using method of automatic control device
CN106438386A (en) * 2016-11-09 2017-02-22 四川农业大学 Centrifugal farmland automatic drainage device
CN106774475A (en) * 2017-01-20 2017-05-31 湘潭大学 A kind of equipment that irrigation canals and ditches artesian water automatic irrigation is used according to farmland water level depth
CN106774475B (en) * 2017-01-20 2019-08-27 湘潭大学 A kind of equipment that irrigation canals and ditches artesian water automatic irrigation is used according to farmland water level depth
CN107750917A (en) * 2017-11-14 2018-03-06 郑州宇恒环保技术有限公司 Plant automatic irrigation and automatic drain system
JP7198897B2 (en) 2017-12-25 2023-01-04 株式会社クボタ Field drain plug and field water storage management system
JP2022002548A (en) * 2017-12-25 2022-01-11 株式会社クボタ Field drain plug and field water storage management system
JP2019110832A (en) * 2017-12-25 2019-07-11 株式会社クボタ Field drainage faucet, field water storage management system, water storage management server and field water storage method
CN110150201A (en) * 2018-01-17 2019-08-23 铜仁学院 A kind of mountain area rice field fish culture water level management Field structure
CN108094157A (en) * 2018-01-29 2018-06-01 安徽理工大学 A kind of circular automatic benefit drainage arrangement
CN108617478B (en) * 2018-04-26 2020-08-18 中国水稻研究所 Farmland quantitative irrigation and drainage control device
CN108617478A (en) * 2018-04-26 2018-10-09 中国水稻研究所 A kind of quantitative row's of the filling control device in farmland
CN108552032A (en) * 2018-06-20 2018-09-21 夏庆 A kind of agriculture vertical architectural mode robotic watering unit of ecological circulation
CN109440895A (en) * 2018-10-31 2019-03-08 张立新 A kind of paddy field automatic plumbing equipment
CN109526638A (en) * 2018-12-29 2019-03-29 重庆市合川区连丰生态农业发展有限公司 Rice Cropping technique
CN113455356A (en) * 2021-07-09 2021-10-01 雷思高 Agricultural rice field water level protection device and application method thereof
CN114200971A (en) * 2021-11-19 2022-03-18 江苏大学 Water level control device suitable for paddy field
CN114200971B (en) * 2021-11-19 2024-05-14 江苏大学 Water level control device suitable for paddy field
CN115088453A (en) * 2022-06-29 2022-09-23 杭州电子科技大学 Intelligent irrigation and drainage system for paddy field
CN115428711A (en) * 2022-10-10 2022-12-06 中国农业科学院农田灌溉研究所 Irrigation and drainage integrated device for multi-water-source cyclic utilization and drainage intelligent control
CN117882524A (en) * 2024-03-13 2024-04-16 兰州交通大学 Agricultural irrigation device used in saline soil environment
CN117882524B (en) * 2024-03-13 2024-05-07 兰州交通大学 Agricultural irrigation device used in saline soil environment

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