CN114568060A - Anti-freezing irrigation system and method for washing salt in soil - Google Patents
Anti-freezing irrigation system and method for washing salt in soil Download PDFInfo
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- CN114568060A CN114568060A CN202210217904.4A CN202210217904A CN114568060A CN 114568060 A CN114568060 A CN 114568060A CN 202210217904 A CN202210217904 A CN 202210217904A CN 114568060 A CN114568060 A CN 114568060A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an anti-freezing irrigation system and a method for washing salt in soil. The anti-freezing irrigation system comprises a water source, a main water pipe and a watering branch pipe; the main water pipe is communicated with a water source and is provided with a first pipe section, the first pipe section is obliquely arranged and buried below a frozen soil line, and a drainage valve is arranged at the lowest point of the first pipe section; one end of the watering branch pipe is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface of a land to be watered, and a watering valve is arranged on the watering branch pipe. The anti-freezing irrigation system provided by the invention can quickly empty water in the pipeline system after the irrigation is stopped, so that the system cannot be damaged by freezing, and can continue to irrigate and irrigate when the temperature is reduced to below the freezing point, so that water is frozen in a field.
Description
Technical Field
The invention belongs to the technical field of irrigation equipment, and particularly relates to an anti-freezing irrigation system and a method for washing salt in soil.
Background
China is a big agricultural country, has large population, less cultivated land, short water resources and special natural conditions and social conditions such as climate, geography and the like determine a path that people must combine the natural conditions to comprehensively utilize various water resources.
In order to plant plants in saline-alkali areas, salt washing is carried out on soil, the conventional salt washing process is to irrigate the soil with large water flood in autumn and spring, and the salt washing is carried out by using frozen ice of seawater in winter in coastal areas in the north. The pipeline in the existing irrigation system is not always subjected to heat preservation measures, because the heat preservation measures are high in cost, after the temperature is low to the freezing point, in order to prevent the residual water in the irrigation pipeline from being frozen to damage the irrigation system, the irrigation is stopped at the time below the freezing point. Thus, water resources cannot be fully utilized in winter.
Disclosure of Invention
The invention mainly aims to provide an anti-freezing irrigation system and a method for washing salt in soil, so as to overcome the defects in the prior art.
In order to achieve the above object, the embodiment of the present invention adopts a technical solution comprising:
one aspect of an embodiment of the present invention provides an anti-freezing watering system, including a water source, a main water pipe, a watering branch pipe; the main water pipe is communicated with a water source and is provided with a first pipe section, the first pipe section is obliquely arranged and buried below a frozen soil line, and a drainage valve is arranged at the lowest point of the first pipe section; one end of the watering branch pipe is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface of a land to be watered, and a watering valve is arranged on the watering branch pipe.
In the embodiment of the invention, the frozen soil line refers to the lower limit of the frozen soil layer in the area in winter.
Furthermore, an alkali discharge channel is arranged in the land to be watered, and the tail end of the first pipe section is the lowest point of the first pipe section and extends into the alkali discharge channel.
Furthermore, the land parcel that needs to water includes the piece of land, the surrounding of piece of land is provided with the ridge, the valve that waters is located the earth's surface top of piece of land.
Furthermore, the main water pipe is also provided with a second pipe section, a third pipe section and a fourth pipe section, one end of the second pipe section is connected with a submersible pump arranged in a water source, the other end of the second pipe section is connected with one end of the third pipe section, the third pipe section is positioned above the ground, and the other end of the third pipe section is connected with the head end of the first pipe section through the fourth pipe section.
Furthermore, a water quantity controller, a pressure transmitter and an exhaust valve are sequentially connected to the third pipe section in series.
In another aspect of the embodiments of the present invention, there is provided a method for washing salt in soil, the method is implemented based on the above-mentioned anti-freeze irrigation system, and the method includes:
when the temperature is reduced to the freezing point, the drainage valve is opened, so that the liquid in the main water pipeline can smoothly flow out;
opening a watering valve of a land parcel to be irrigated;
starting a submersible pump to supply water to the land to be irrigated;
after the irrigation is finished, closing the submersible pump or opening another irrigation valve of the land to be irrigated;
the drain valve is maintained in a partially or fully open state throughout the sub-freezing period.
Compared with the prior art, the invention has the following beneficial effects:
(1) the anti-freezing irrigation system and the method for washing salt in soil can quickly empty water in the pipeline system after stopping watering, so that the system is not damaged by freezing, and can continue watering and irrigating when the temperature is reduced to below the freezing point, so that water is frozen in a field.
(2) The anti-freezing irrigation system and the method for washing salt in soil have the advantages that the first pipe section of the main water pipe is buried below the frozen soil layer, so that the damage to the pipeline caused by freezing can be reduced to the maximum extent, and the safety and stability of the system are ensured; the first pipe section of the main water pipe is arranged obliquely below the frozen layer, and one end of the first pipe section of the main water pipe, which is lower than the first pipe section and extends out of the ground, is connected with the drainage valve, so that water in the main water pipe can be completely drained by using gravity when drainage is needed, additional pressurization is not needed, and the cost is reduced to a certain extent; in addition, open the end valve before the freezing point comes, guarantee that underground piping, the water that stretches out ground pipeline all can flow out the pipeline through the drain valve after stopping irrigating.
(3) The invention relates to an anti-freezing irrigation system and a method for washing salt in soil, wherein a frequency converter and a pressure transmitter are used for forming constant-pressure water supply, so that the pressure of the system is prevented from being increased and a pipeline system is prevented from being damaged due to the error closing of a valve in the system; in addition, the exhaust valve is used on the third pipe section of the main water pipe, so that the pipeline damage caused by the water hammer effect can be avoided, the siphon phenomenon can be relieved, and the water in the water source is prevented from being washed and discharged through the drainage valve.
(4) The anti-freezing irrigation system and the method for washing salt in soil can be applied to places needing irrigation in winter and spring, irrigation after the temperature is reduced to the freezing point, and can also be applied to places needing frozen ice and salt washing, and irrigation after the temperature is reduced to the freezing point.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of an anti-freeze irrigation system according to an embodiment of the present application.
Description of reference numerals: 1. the device comprises a water pool, 2, a submersible pump, 3, a frequency converter, 4, a pressure transmitter, 5, an exhaust valve, 6, a main water pipe, 7, a watering branch pipe, 8, a watering valve, 9, the surface of a land to be watered, 10, the watering branch pipe, 11, the watering valve, 12, a ridge, 13, a drainage valve, 14, an alkali discharge channel, 15, a frozen soil line, 16 and the ground surface.
Detailed Description
One aspect of the embodiment of the invention provides an anti-freezing irrigation system, which comprises a water source, a main water pipe and a watering branch pipe; the main water pipe is communicated with a water source and is provided with a first pipe section, the first pipe section is obliquely arranged and buried below a frozen soil line, and a drainage valve is arranged at the lowest point of the first pipe section; one end of the watering branch pipe is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface of a land to be watered, and a watering valve is arranged on the watering branch pipe.
In the embodiment of the invention, the freezing line refers to the lower limit of the frozen soil layer in the area in winter.
According to the anti-freezing irrigation system provided by the embodiment of the invention, water in the pipeline system can be quickly emptied after the irrigation is stopped, so that the system cannot be damaged by freezing, the irrigation can be continuously watered when the temperature is reduced to below the freezing point, and the water is frozen in a field; the first pipe section of the main water pipe is buried below the frozen soil layer, so that the damage to the pipeline due to icing can be reduced to the maximum extent, and the safety and stability of the system are ensured; the first pipe section of the main water pipe is arranged obliquely below the frozen layer, and one end of the first pipe section of the main water pipe, which is lower than the first pipe section and extends out of the earth, is connected with the drainage valve, so that water in the buried pipe can be completely drained by utilizing gravity when drainage is needed, additional pressurization is not needed, and the cost is reduced to a certain extent; in addition, open the end valve before the freezing point comes, guarantee that underground piping, the water that stretches out ground pipeline all can flow out the pipeline through the drain valve after stopping irrigating.
In some preferred embodiments, an alkali discharge channel is formed in the land parcel to be watered, and the tail end of the first pipe section is the lowest point of the first pipe section and extends into the alkali discharge channel.
In some preferred embodiments, the land requiring watering comprises a field piece surrounded by a ridge, and the watering valve is located above the surface of the field piece.
In some preferred embodiments, the ridge is disposed adjacent to the alkali discharge channel.
In some preferred embodiments, the main water pipe further has a second pipe section, a third pipe section and a fourth pipe section, one end of the second pipe section is connected with a submersible pump arranged in the water source, the other end of the second pipe section is connected with one end of the third pipe section, the third pipe section is located above the ground, and the other end of the third pipe section is connected with the head end of the first pipe section through the fourth pipe section.
In some more preferred embodiments, a water quantity controller, a pressure transmitter and an exhaust valve are connected in series on the third pipe section in sequence.
In some preferred embodiments, the water quantity controller may include a frequency converter, but is not limited thereto.
In the embodiment of the invention, the exhaust valve is used on the third pipe section of the main water pipe, so that the pipeline damage caused by the water hammer effect can be avoided, the siphon phenomenon can be relieved, and the water in the water source is prevented from being completely washed and discharged through the drainage valve.
In some preferred embodiments, the water source includes, but is not limited to, a pool or a well.
In some preferred embodiments, the drain valve and the watering valve are both manual valves or automatic valves connected to temperature sensors.
In another aspect of the embodiments of the present invention, there is provided a method for washing salt in soil, the method is implemented based on the above-mentioned anti-freezing irrigation system, and the method includes:
when the temperature is reduced to the freezing point, the drainage valve is opened, so that the liquid in the main water pipeline can smoothly flow out;
opening a watering valve of a land parcel to be irrigated;
starting a submersible pump to supply water to the land to be irrigated;
after the irrigation is finished, closing the submersible pump or opening another irrigation valve of the land to be irrigated;
the drain valve is maintained in a partially or fully open state throughout the sub-freezing period.
In some preferred embodiments, the method for washing salt from soil comprises: when the temperature is above the freezing point, the drain valve is closed to save water.
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Examples
The embodiment of the invention provides an anti-freezing irrigation system, which comprises a water pool 1, a main water pipe 6, a watering branch pipe 7 and a watering branch pipe 10, wherein the water pool is used for the surface 9 of a land to be watered, a field ridge 12 is arranged around the surface 9 of the land to be watered and used for enclosing water in the field, and an alkali discharge channel 14 is arranged in the land to be watered.
In the embodiment, the water pool 1 is positioned below the ground surface 16, the main water pipe 6 is communicated with the water pool 1, the main water pipe 6 is provided with a first pipe section, the first pipe section is obliquely arranged and buried below the frozen soil line 15, the tail end of the first pipe section is the lowest point of the first pipe section and extends into the alkali discharge channel 14, and the lowest point of the first pipe section is provided with a water discharge valve 13; the drainage valve 13 is used for keeping the water fluidity in the main water 6 when watering; after stopping the watering, the main water pipe 6 is emptied into the alkali discharge canal 14.
One end of the watering branch pipe 7 is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface 9 of the land to be watered, a watering valve 8 is arranged on the watering branch pipe 7, one end of the watering branch pipe 10 is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface 9 of the land to be watered, and a watering valve 11 is arranged on the watering branch pipe 7.
The main water pipe 6 is also provided with a second pipe section, a third pipe section and a fourth pipe section, one end of the second pipe section is connected with the submersible pump 2 arranged in the water pool 1, the other end of the second pipe section is connected with one end of the third pipe section, the third pipe section is positioned above the ground, and the other end of the third pipe section is connected with the head end of the first pipe section through the fourth pipe section; and the third pipe section is also sequentially connected with a frequency converter 3, a pressure transmitter 4 and an exhaust valve 5 in series.
The frequency converter 3 and the pressure transmitter 4 are used for forming constant-pressure water supply, so that the phenomenon that a pipeline system is damaged due to the increase of system pressure caused by the mistaken closing of a valve in the system is prevented; in addition, the exhaust valve 5 is arranged on the third section of the main water pipe 6, so that the damage of the pipeline caused by the water hammer effect can be avoided, the siphon phenomenon can be relieved, and the water in the water pool 1 is prevented from being completely washed and discharged through the drain valve 13.
The method for washing salt in soil by using the anti-freezing irrigation system provided by the embodiment of the invention comprises the following steps:
when the temperature is reduced to the freezing point, the drainage valve 13 is opened so that the liquid in the main water pipe 6 can smoothly flow out;
opening a watering valve 8 of the land to be irrigated;
starting a submersible pump 2 to supply water to the land to be irrigated;
after the irrigation is finished, closing the submersible pump 2 or opening another irrigation valve 11 of the land to be irrigated, and closing the irrigation valve 8 which is already irrigated;
the drain valve 13 is kept partially or fully open for the entire sub-freezing period.
In the implementation process, if the last drainage valve 13 cannot be the lowest point due to the terrain, the drainage valve 13 needs to be arranged at the lowest point of the main water pipe 6; in implementation, the valves used by the watering valve and the drainage valve can be manual valves (manual operation) such as a ball valve and a butterfly valve, and can also be automatic valves connected with a temperature sensor; in addition, the constant pressure control component composed of the submersible pump 2, the frequency converter 3 and the pressure transmitter 4 can be other constant pressure control components, water sources, and other water sources, such as a water well and the like.
In addition, the inventors of the present invention have also made experiments with other materials, process operations, and process conditions described in the present specification with reference to the above examples, and have obtained preferable results.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
Claims (10)
1. An anti-freezing irrigation system is characterized by comprising a water source, a main water pipe and a watering branch pipe; the main water pipe is communicated with a water source and is provided with a first pipe section, the first pipe section is obliquely arranged and buried below a frozen soil line, and a drainage valve is arranged at the lowest point of the first pipe section; one end of the watering branch pipe is connected with the first pipe section, the other end of the watering branch pipe is exposed out of the surface of a land to be watered, and a watering valve is arranged on the watering branch pipe.
2. The antifreeze irrigation system of claim 1, wherein: an alkali discharge channel is formed in the land parcel to be watered, and the tail end of the first pipe section is the lowest point of the first pipe section and extends into the alkali discharge channel.
3. The antifreeze irrigation system of claim 1 or 2, wherein: the land parcel that needs to water includes the piece of field, the piece of field is surrounded around being provided with the ridge, the valve that waters is located the earth's surface top of piece of field.
4. The antifreeze watering system of claim 3, wherein: the ridge is arranged adjacent to the alkali discharge channel.
5. The antifreeze irrigation system of claim 4, wherein: the main water pipe is also provided with a second pipe section, a third pipe section and a fourth pipe section, one end of the second pipe section is connected with a submersible pump arranged in a water source, the other end of the second pipe section is connected with one end of the third pipe section, the third pipe section is positioned above the ground, and the other end of the third pipe section is connected with the head end of the first pipe section through the fourth pipe section.
6. The antifreeze irrigation system of claim 5, wherein: and a water quantity controller, a pressure transmitter and an exhaust valve are sequentially connected in series on the third pipe section.
7. The antifreeze watering system of claim 6, wherein: the water quantity controller comprises a frequency converter.
8. The antifreeze irrigation system of claim 1, wherein: the drainage valve and the watering valve are both manual valves or automatic valves connected with temperature sensors.
9. A method of salt leaching of soil, wherein the method is carried out based on the antifreeze irrigation system of any one of claims 1-8, and the method comprises:
when the temperature is reduced to the freezing point, the drainage valve is opened, so that the liquid in the main water pipeline can smoothly flow out;
opening a watering valve of a land parcel to be irrigated;
starting a submersible pump to supply water to the land to be irrigated;
after the irrigation is finished, closing the submersible pump or opening another irrigation valve of the land to be irrigated;
the drain valve is maintained in a partially or fully open state throughout the sub-freezing period.
10. The method of salt washing soil as claimed in claim 9, comprising: and when the temperature is above the freezing point, closing the drainage valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210217904.4A CN114568060A (en) | 2022-03-08 | 2022-03-08 | Anti-freezing irrigation system and method for washing salt in soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210217904.4A CN114568060A (en) | 2022-03-08 | 2022-03-08 | Anti-freezing irrigation system and method for washing salt in soil |
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| GB190726234A (en) * | 1906-11-28 | 1908-01-16 | Martin Hiller | Improvements in the Irrigation of Large Areas. |
| CN203646217U (en) * | 2013-12-31 | 2014-06-18 | 唐天鸽 | Irrigation system device |
| CN106247002A (en) * | 2016-08-26 | 2016-12-21 | 杭州春江阀门有限公司 | Anti-freezing water hammer-resistant combined high-speed aerofluxus intake valve |
| CN108843023A (en) * | 2018-07-21 | 2018-11-20 | 四川启创建设工程有限公司 | Extreme cold area in low temperature season concrete construction method |
| CN109970152A (en) * | 2019-04-30 | 2019-07-05 | 山东农业大学 | A kind of salt-soda soil distribution pumping is salty to change light irrigation and drainage coupling improvement system and application method |
| CN110063100A (en) * | 2019-04-23 | 2019-07-30 | 盛世生态环境股份有限公司 | A method of for improveing buried steam pipe system and the salinized soil improvement of salinized soil |
| CN110199604A (en) * | 2019-06-27 | 2019-09-06 | 四川大学 | A kind of Irrigated Area Soils salination control method based on unfreezing |
| CN210537921U (en) * | 2019-07-26 | 2020-05-19 | 威立雅（哈尔滨）热电有限公司 | Antifreezing spray irrigation device |
| US20210329860A1 (en) * | 2018-06-27 | 2021-10-28 | Jiangsu University | Wireless interconnection control system and method for improving sprinkler irrigation uniformity of hose reel irrigator with electric drive |
| CN214853178U (en) * | 2021-06-03 | 2021-11-26 | 山东省蚕业研究所 | Water and fertilizer accurate control system |
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2022
- 2022-03-08 CN CN202210217904.4A patent/CN114568060A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190726234A (en) * | 1906-11-28 | 1908-01-16 | Martin Hiller | Improvements in the Irrigation of Large Areas. |
| CN203646217U (en) * | 2013-12-31 | 2014-06-18 | 唐天鸽 | Irrigation system device |
| CN106247002A (en) * | 2016-08-26 | 2016-12-21 | 杭州春江阀门有限公司 | Anti-freezing water hammer-resistant combined high-speed aerofluxus intake valve |
| US20210329860A1 (en) * | 2018-06-27 | 2021-10-28 | Jiangsu University | Wireless interconnection control system and method for improving sprinkler irrigation uniformity of hose reel irrigator with electric drive |
| CN108843023A (en) * | 2018-07-21 | 2018-11-20 | 四川启创建设工程有限公司 | Extreme cold area in low temperature season concrete construction method |
| CN110063100A (en) * | 2019-04-23 | 2019-07-30 | 盛世生态环境股份有限公司 | A method of for improveing buried steam pipe system and the salinized soil improvement of salinized soil |
| CN109970152A (en) * | 2019-04-30 | 2019-07-05 | 山东农业大学 | A kind of salt-soda soil distribution pumping is salty to change light irrigation and drainage coupling improvement system and application method |
| CN110199604A (en) * | 2019-06-27 | 2019-09-06 | 四川大学 | A kind of Irrigated Area Soils salination control method based on unfreezing |
| CN210537921U (en) * | 2019-07-26 | 2020-05-19 | 威立雅（哈尔滨）热电有限公司 | Antifreezing spray irrigation device |
| CN214853178U (en) * | 2021-06-03 | 2021-11-26 | 山东省蚕业研究所 | Water and fertilizer accurate control system |
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