CN116813006A - Salt collecting device and method applicable to underground drip irrigation interline concealed pipe in arid region - Google Patents
Salt collecting device and method applicable to underground drip irrigation interline concealed pipe in arid region Download PDFInfo
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- CN116813006A CN116813006A CN202310911124.4A CN202310911124A CN116813006A CN 116813006 A CN116813006 A CN 116813006A CN 202310911124 A CN202310911124 A CN 202310911124A CN 116813006 A CN116813006 A CN 116813006A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
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Abstract
The invention discloses a device and a method for collecting salt by using a buried pipe between drip irrigation lines under a film in an arid region, which relate to the field of salt discharge in farm irrigation. According to the migration law of water, heat and salt, the invention improves the local temperature, water absorption and air permeability of the empty space between the films by the equipment, increases the thermal gradient and water potential difference of the concealed pipe and the wet area between the films, promotes the migration and aggregation of water and salt to the concealed pipe between the films, and forms crystals to be solidified on the surface of the water absorbing material under evaporation.
Description
Technical Field
The invention relates to the field of farmland irrigation salt removal, in particular to a device and a method for collecting salt by using concealed pipes between drip irrigation lines under a film in an arid region.
Background
The arid area is scarce in precipitation, strong in evaporation, and deficient in available water resources, and the agricultural irrigation mode is usually under-film drip irrigation. Because irrigation water has high mineralization degree and small drip irrigation flow, salt in surface soil cannot be leached to deep soil or underground water, and the salt cannot be directionally discharged to the periphery of a wetting front and the bare land between films, so that a salt accumulation area is formed, and secondary salinization of the soil is caused. After the next year of ploughing, the accumulated salt between the membranes is redistributed back to the soil in the membranes, so that the integral salt content of the soil is improved.
The arid region is usually subjected to high-water pressure salt by spring irrigation and winter irrigation before and after the planting period, salt is leached from surface soil to deep soil so as to reduce salt in the root system layer of crops, but a large amount of precious water resources in the arid region are wasted in the soil salt elimination in the non-crop growing period. In Xinjiang south Xinjiang, the winter and spring irrigation quota of cotton fields is generally 3000-4500 m 3 /hm 2 Accounting for about 50% of the annual irrigation quota of cotton fields, the development of water-saving agriculture is restricted. How to achieve the aim of treating the saline-alkali soil under the drought and water shortage condition, and becomes the problem to be solved in agriculture in arid areas. In addition, the open trench, the vertical shaft and the concealed pipe are matched with drainage facilities to change the ground structure, so that the field cultivation and mechanical operation of the grower are affected. In addition, the existing engineering measures for farmland salt removal and saline-alkali soil improvement discharge the salt-washing wastewater into the salt-washing wasteland, so that the environment is polluted, and the salt in the salt-washing wastewater cannot be utilized.
Therefore, a person skilled in the art needs to provide a device and a method for collecting salt by using underground pipes under drip irrigation lines in an arid area, which have simple structure, are convenient to use, do not affect field operation, can reduce the salt content of soil between the films, reduce the water quantity of leaching salt, and realize recycling of farmland salt.
Disclosure of Invention
The invention aims to provide a device and a method for collecting salt by using underground pipes between drip irrigation lines under a film in an arid area, which have the advantages of simple structure, convenient use, no influence on field operation, capability of reducing the salt content of soil between films, reducing the water quantity of leaching salt and realizing the recycling of farmland salt.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention discloses a submerged pipe salt collecting device suitable for a submerged drip irrigation interline in an arid region, which comprises a vertical submerged pipe, a heat conducting support plate, a heat absorbing cover, a conical body and a water absorbing material, wherein the conical body is connected to the bottom of the vertical submerged pipe in a threaded manner, the heat conducting support plate is welded inside the vertical submerged pipe, a cavity is formed by the heat conducting support plate and the inner wall of the vertical submerged pipe, the water absorbing material is placed in the cavity, and the top of the heat conducting support plate is connected with the bottom of the heat absorbing cover.
Preferably, the vertical concealed pipe is a hollow cylinder, the heat conduction supporting plate is designed into a cross shape, a Y shape or a straight shape, a boss is welded at the bottom of the heat absorption cover, and a groove surrounded by the boss is matched with the cross section shape and the size of the heat conduction supporting plate.
Preferably, the top of the heat conduction supporting plate is higher than the wall body of the vertical concealed pipe, a screw hole is formed in the wall body of the groove surrounded by the boss, a matched screw hole is formed in the wall body of the groove surrounded by the boss, the top wall body of the heat conduction supporting plate is embedded into the groove surrounded by the boss, and the boss is connected with the heat conduction supporting plate through the screw hole.
Preferably, a black coating is arranged on the outer surface of the heat absorbing cover, and the black coating is a black chromium coating.
Preferably, the wall body of the vertical concealed pipe is provided with water permeable holes, the wall body of the heat conduction supporting plate is provided with water permeable air holes, and the wall body of the heat absorption cover is provided with air holes.
Preferably, the cone is cone, the inside of cone is provided with round platform recess, the upper portion wall welding of cone has cylindric hollow thread groove, the bottom of vertical blind pipe is provided with assorted screw thread.
Preferably, the water absorbing material is water absorbing sponge, the water absorbing sponge is vertically placed in the cavities, and the water absorbing sponge is respectively attached to the inner wall of the vertical concealed pipe.
Preferably, the inner and outer walls of the vertical concealed pipe, the surface of the heat conduction supporting plate, the surface of the heat absorption cover and the inner and outer walls of the cone are coated with rust-proof coatings.
Preferably, the pipe wall of the vertical type concealed pipe is made of copper-aluminum alloy or polyoxymethylene resin material, and the heat conduction supporting plate, the heat absorption cover and the cone are made of copper-aluminum alloy material.
The application method of the underground pipe salt collecting device suitable for the under-film drip irrigation interline in the arid region comprises the following steps of:
s1: assembling a concealed pipe salt collecting device, connecting a conical body to the bottom of a vertical concealed pipe through threads, welding a heat conduction supporting plate in the vertical concealed pipe, placing a water absorbing material in a cavity formed between the heat conduction supporting plate and the vertical concealed pipe, embedding the top of the heat conduction supporting plate into a groove surrounded by a boss at the bottom of a heat absorption cover, and connecting the heat conduction supporting plate and the vertical concealed pipe together through screw holes by bolts;
s2: installing a concealed pipe salt collecting device, firstly performing farmland ploughing work, and paving a drip irrigation belt and a mulching film; then, inserting a buried pipe salt collecting device into the soil at the middle position with the distance of 1-3 meters along the laying direction of the drip irrigation belt, wherein the depth of the inserted soil is 60-80 cm, and the upper part of the buried pipe salt collecting device is 1-2 cm higher than the ground surface; if the soil quality is poor, firstly, excavating a soil pit with the width of 20 cm and the depth of 60-80 cm, vertically placing a buried pipe salt collecting device, and then burying soil;
s3: taking out and splitting the concealed pipe salt collecting device, carrying out normal irrigation, normal weeding and deinsectization according to the growth and fertility requirements of crops, taking out equipment from the soil before turning over the soil after the crops are harvested, splitting each part of the device, rotating a cone, disassembling bolts, taking out water absorbing materials and delivering the water absorbing materials to professionals for recovery;
s4: washing and recycling the concealed pipe salt collecting device, flushing the other structures of the device with fresh water, placing the device at a drying place for airing, filling new water absorbing materials into the vertical concealed pipe the next year, and repeating the steps S1-S3.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) The method utilizes unsaturated soil water in the irrigation process as salt driving force to exert the functions of heat absorption, heat conduction, water absorption and water drainage of the buried pipe structure, forms thermal gradient and water potential gradient between a wetting area and the buried pipe, promotes water and salt concentration among films to collect in the buried pipe, can not only relieve the damage of the buried pipe to the crops, but also effectively reduce the salt leaching amount in the areas with large buried pipe depth and high mineralization degree of the irrigation water.
(2) The salt resource recycling is convenient, the salt washing water is discharged to the unused wasteland in the conventional farmland drainage engineering measures, the salt washing water is treated as wastewater, and the salt in the wastewater can be used as industrial raw materials after being treated and recycled. The water-absorbing sponge can absorb water and salt, and after the planting period is finished, the water-absorbing sponge is taken out, and the salt is separated in a vibration, flushing and other modes and then recycled.
(3) The existing farmland drainage engineering measures have large engineering quantity, high investment and difficult maintenance. The device has small volume, shallow structure burial depth, easy disassembly and flushing, convenient construction and installation and cyclic utilization, is especially suitable for fragmented land parcels with small scale, reduces the difficulty of treating the secondary salinization of the soil for the grower to a certain extent, and can better mobilize the participation enthusiasm of the grower.
(4) The normal operation of the field is ensured, and the existing engineering measures need to build alkali discharging ditches and lay concealed pipes for leaching salt, so that the technologies occupy a large amount of farmlands, influence the field mechanical operation, or are unfavorable for management. The vertical concealed pipe is inserted into soil, and only the heat absorption cover made of metal is exposed outside, so that the occupied area of a farmland is small, and the field mechanical operation is not influenced.
The vertical concealed pipe is similar to a nail of an enlarged version, the upper part of the heat absorbing cover is relatively matched with the junction of soil, and meanwhile, the structure and the used materials of the vertical concealed pipe have enough strength, can bear the stress of mechanical operation, and ensure the normal operation of a salt discharging system.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a vertical type concealed pipe structure of a submerged pipe salt collecting device suitable for a submerged drip irrigation interline in an arid region;
FIG. 2 is a longitudinal cross-sectional view of the interior of the vertical blind pipe of the present invention;
FIG. 3 is a cross-sectional view of the interior of the vertical blind pipe of the present invention;
FIG. 4 is a schematic view of a cross-shaped heat conducting support plate according to the present invention;
FIG. 5 is a schematic view of the heat absorbing cover structure of the present invention;
fig. 6 is a schematic diagram of the operation of the blind pipe salt collecting device of the present invention.
Reference numerals illustrate: 1. a vertical concealed pipe; 2. a heat conductive support plate; 3. a heat absorbing cover; 4. a cone; 5. a circular truncated cone groove; 6. a water absorbing material; 101. a water permeable hole; 201. permeable vent holes; 301. ventilation holes; 302. a boss.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-6, the salt collecting device of the underground pipe suitable for the underfilm drip irrigation in the arid region comprises a vertical underground pipe 1, a heat conduction supporting plate 2, a heat absorption cover 3, a conical body 4 and a water absorption material 6, wherein the conical body 4 is in threaded connection with the bottom of the vertical underground pipe 1, the heat conduction supporting plate 2 is welded in the vertical underground pipe 1, a cavity is formed by the heat conduction supporting plate 2 and the inner wall of the vertical underground pipe 1, the water absorption material 6 is placed in the cavity, and the top of the heat conduction supporting plate 2 is connected with the bottom of the heat absorption cover 3.
Specifically, the wall thickness of the wall of the vertical type concealed pipe 1 is 3-6 mm, the inner diameter of the vertical type concealed pipe 1 is 8-12 cm, and the pipe length is 60-80 cm.
The vertical concealed pipe 1, the heat conduction supporting plate 2 and the conical body 4 are supporting structures of the device, can bear external force, ensure that the whole equipment is not deformed under the action of the external force, and maintain the normal operation of the whole system;
the heat absorption cover 3 is a heat absorption structure of the device, the heat conduction supporting plate 2 is a heat conduction structure of the device, the heat absorption cover 3 can absorb solar radiation and transmit the solar radiation into the concealed pipe, the temperature inside the concealed pipe is promoted to be increased, and the evaporation efficiency is increased;
the water permeable holes 101, the water permeable air holes 201 and the water absorbing material 6 are of a water permeable structure, so that water can circulate from soil to the inside of the concealed pipe;
the permeable vent 201 and the vent 301 are of a ventilation structure, and are channels from water vapor to the atmosphere, so that the evaporation efficiency in the concealed pipe can be increased;
the water absorbing sponge and the conical body are provided with the truncated cone grooves 5 which are of salt collecting structures, and the truncated cone grooves 5 are of structures for absorbing salt after evaporation of water according to the condition that the flow rate of the dripper is large.
As shown in fig. 4, the vertical concealed pipe 1 is a hollow cylinder, the heat-conducting support plate 2 is designed into a cross shape, a Y shape, a straight shape or other shapes according to requirements, the bottom of the heat-absorbing cover 3 is welded with a boss 302, and a groove surrounded by the boss 302 is matched with the cross-section shape and the size of the heat-conducting support plate 2.
Specifically, the lengths of the heat conduction supporting plates 2 are equal to the inner diameter of the vertical concealed pipe 1, and the thickness of the cross heat conduction supporting plates 2 is 5-8 mm.
As shown in fig. 5, the top of the heat-conducting support plate 2 is higher than the wall body of the vertical blind pipe 1, a screw hole is formed in the wall body of the groove surrounded by the boss 302, a matched screw hole is formed in the wall body of the groove surrounded by the boss 302, the top wall body of the heat-conducting support plate 2 is embedded into the groove surrounded by the boss 302, and a bolt passes through the screw hole to connect the boss 302 and the heat-conducting support plate 2 together. Specifically, the length of the top of the heat conduction supporting plate 2, which is higher than the vertical type concealed pipe 1, is 15-20 mm.
The outer surface of the heat absorbing cover 3 is provided with a black coating, the black coating is a black chromium coating, and the black chromium has the advantages of high absorptivity, low reflectivity, quick heat absorption and the like. Specifically, the diameter of the heat absorbing cover 3 is 12-15 cm, and the thickness of the heat absorbing cover 3 is 5 mm.
As shown in figure 1, the wall body of the vertical type concealed pipe 1 is provided with water permeable holes 101, the water permeable holes 101 are round holes which are vertically arranged in a row from top to bottom, the aperture is related to the property of the improved soil, the aperture of the sandy soil open hole is small, the aperture of the cohesive soil open hole is large, the aperture is 10-20 mm, the aperture distance is 10-20 mm, and the hole is formed at the position of doubling the aperture distance from the boundary.
As shown in fig. 4, the wall body of the heat-conducting support plate 2 is provided with water-permeable air holes 201, specifically, the water-permeable air holes 201 are round holes, which are vertically arranged in rows from top to bottom, the aperture is 10-20 mm, the pitch of the holes is 10 mm, and the holes are formed from the boundary 0.5 times of the pitch of the holes.
As shown in fig. 5, the wall of the heat absorbing cover 3 is provided with ventilation holes 301.
As shown in fig. 2, the cone 4 is a cone, and a truncated cone groove 5 is formed in the cone 4. Specifically, the height of the round table is 3-5 cm, the diameter of the upper part is 6-10 cm, the diameter of the lower part is 1.2-2.5 cm, the height of the conical body 4 is 5-8 cm,
the conical body 4 is a cone, a circular truncated cone groove 5 is formed in the conical body 4, a cylindrical first thread is formed in the upper wall body of the conical body 4, and a second thread matched with the first thread is formed in the bottom of the vertical blind pipe 1.
As shown in fig. 2-3, the water absorbing material 6 is a water absorbing sponge, the water absorbing sponge is vertically placed in the plurality of cavities, and the plurality of water absorbing sponges are respectively attached to the inner wall of the vertical type concealed pipe 1.
One specific embodiment is that the heat conduction supporting plate 2 is arranged in a cross shape, four pieces of water absorbing sponge are vertically placed in four cavities of the vertical concealed pipe 1 respectively, and the shape of the water absorbing sponge is matched with the shape of the cavities. Or the water absorbing sponge is in a vertical strip shape, and multiple layers of water absorbing sponge can be vertically arranged in each cavity.
The inner and outer walls of the vertical concealed pipe 1, the surface of the heat conduction supporting plate 2, the surface of the heat absorption cover 3 and the inner and outer walls of the conical body 4 are coated with an anti-rust coating, and the anti-rust coating ensures the service life of the concealed pipe salt collecting device.
The pipe wall of the vertical type concealed pipe 1 is made of copper-aluminum alloy or polyoxymethylene resin materials, and the heat conduction supporting plate 2, the heat absorption cover 3 and the cone 4 are made of copper-aluminum alloy materials.
The application method of the underground pipe salt collecting device suitable for the under-film drip irrigation interline in the arid region comprises the following steps of:
s1: assembling the concealed pipe salt collecting device, connecting a conical body 4 to the bottom of the vertical concealed pipe 1 through threads, welding a heat conduction supporting plate 2 inside the vertical concealed pipe 1, placing a water absorbing material 6 in a cavity formed between the heat conduction supporting plate 2 and the vertical concealed pipe 1, embedding the top of the heat conduction supporting plate 2 into a groove surrounded by a boss 302 at the bottom of the heat absorption cover 3, and connecting the heat conduction supporting plate and the vertical concealed pipe 1 together through screw holes by bolts;
s2: installing a concealed pipe salt collecting device, firstly performing farmland ploughing work, and paving a drip irrigation belt and a mulching film; then, inserting a buried pipe salt collecting device into the soil at the middle position with the distance of 1-3 meters along the laying direction of the drip irrigation belt, wherein the depth of the inserted soil is 60-80 cm, and the upper part of the buried pipe salt collecting device is 1-2 cm higher than the ground surface; if the soil quality is poor, firstly, excavating a soil pit with the width of 20 cm and the depth of 60-80 cm, vertically placing a buried pipe salt collecting device, and then burying soil;
s3: taking out and splitting the concealed pipe salt collecting device, carrying out normal irrigation, normal weeding and deinsectization according to the growth and fertility requirements of crops, taking out equipment from the soil before ploughing the soil after the crops are harvested, splitting each part of the device, rotating the conical body 4, disassembling the bolts, taking out the water absorbing material 6 and delivering the water absorbing material to professionals for recovery;
s4: washing and recycling the concealed pipe salt collecting device, flushing the other structures of the device with fresh water, placing the device at a drying place for airing, filling a new water absorbing material 6 into the vertical concealed pipe 1 the next year, and repeating the steps S1-S3.
The application process of the invention is as follows:
according to the migration law of water, heat and salt, the invention improves the local temperature, water absorption and air permeability of the space between the films by the equipment, increases the thermal gradient and water potential difference of the hidden pipes and the wetting area between the films, promotes the migration and aggregation of water and salt to the hidden pipes between the films, and forms crystals to be solidified on the surface of the water absorbing material under evaporation.
When the device is used, firstly, the concealed pipe salt collecting device is assembled, the conical body 4 is connected to the bottom of the vertical concealed pipe 1 through threads, the cross-shaped heat conduction support plate 2 is welded inside the vertical concealed pipe 1, the water absorbing material 6 is placed in a cavity formed between the heat conduction support plate 2 and the vertical concealed pipe 1, the top of the heat conduction support plate 2 is embedded into a groove surrounded by the boss 302 at the bottom of the heat absorption cover 3, and the heat conduction support plate 2 and the heat absorption cover are connected together through screw holes by bolts;
secondly, installing a concealed pipe salt collecting device, firstly turning over farmland, and paving a drip irrigation belt and a mulching film; then, inserting a buried pipe salt collecting device into the soil at the middle position with the distance of 2 meters along the laying direction of the drip irrigation belt, wherein the depth of the inserted soil is 70 cm, and the upper part of the inserted soil is 1 cm higher than the ground surface; if the soil quality is poor, firstly, excavating a soil pit with the width of 20 cm and the depth of 60-80 cm, vertically placing a buried pipe salt collecting device, and then burying;
then, taking out and splitting the concealed pipe salt collecting device, carrying out normal irrigation, normal weeding and deinsectization according to the growth and fertility requirements of crops, taking out equipment from the soil before turning over the soil after harvesting the crops, splitting each part of the device, rotating the conical body 4, disassembling the bolts, taking out the water absorbing material 6 and delivering the water absorbing material to professionals for recycling;
and finally, washing and recycling the concealed pipe salt collecting device, flushing the other structures of the device with fresh water, placing the device at a drying place for airing and air drying, filling a new water absorbing material 6 into the vertical concealed pipe 1 next year, and repeating the steps S1-S3.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (10)
1. The utility model provides a be applicable to arid region film drip irrigation interline concealed conduit album salt device which characterized in that: including vertical concealed pipe (1), heat conduction backup pad (2), heat absorption lid (3), conical body (4) and water absorbing material (6), the bottom threaded connection of vertical concealed pipe (1) has conical body (4), the inside welding of vertical concealed pipe (1) has heat conduction backup pad (2), heat conduction backup pad (2) with the inner wall of vertical concealed pipe (1) forms the cavity, water absorbing material (6) has been placed in the cavity, the top of heat conduction backup pad (2) with the bottom of heat absorption lid (3) is connected.
2. The submerged line-to-line buried pipe salt collecting device suitable for underfilm drip irrigation in arid regions according to claim 1, wherein: the vertical concealed pipe (1) is a hollow cylinder, the heat conduction supporting plate (2) is designed into a cross shape, a Y shape or a straight shape, a boss (302) is welded at the bottom of the heat absorption cover (3), and a groove surrounded by the boss (302) is matched with the cross section shape and the size of the heat conduction supporting plate (2).
3. The submerged line salt collecting device for drip irrigation under a film in an arid area according to claim 2, wherein: screw holes are formed in the wall body, which is higher than the vertical concealed pipe (1), of the top of the heat conduction supporting plate (2), matched screw holes are formed in the groove wall of the groove surrounded by the boss (302), the top wall body of the heat conduction supporting plate (2) is embedded into the groove surrounded by the boss (302), and bolts penetrate through the screw holes to connect the boss (302) with the heat conduction supporting plate (2).
4. A submerged line salt-collecting device for drip irrigation under a film in an arid area according to claim 3, wherein: the outer surface of the heat absorbing cover (3) is provided with a black coating, and the black coating is a black chromium coating.
5. The submerged arc tube salt collecting device suitable for underfilm drip irrigation in arid regions according to claim 4, wherein: the wall body of the vertical concealed pipe (1) is provided with a water permeable hole (101), the wall body of the heat conduction supporting plate (2) is provided with a water permeable vent hole (201), and the wall body of the heat absorption cover (3) is provided with a vent hole (301).
6. The submerged arc tube salt collecting device suitable for underfilm drip irrigation in arid regions according to claim 5, wherein: the conical body (4) is a cone, a round table groove (5) is formed in the conical body (4), a cylindrical first thread is formed in the upper wall body of the conical body (4), and a second thread matched with the first thread is formed in the bottom of the vertical blind pipe (1).
7. The submerged line-to-line buried pipe salt collecting device applicable to underfilm drip irrigation in arid regions according to claim 6, wherein: the water absorbing material (6) is water absorbing sponge, the water absorbing sponge is vertically arranged in the cavities, and the water absorbing sponge is respectively attached to the inner wall of the vertical concealed pipe (1).
8. The submerged line salt collecting device for drip irrigation under a film in an arid area according to claim 7, wherein: the inner and outer pipe walls of the vertical concealed pipe (1), the surface of the heat conduction supporting plate (2), the surface of the heat absorption cover (3) and the inner and outer walls of the conical body (4) are coated with rust-proof coatings.
9. The submerged line salt collecting device for drip irrigation under a film in an arid area according to claim 7, wherein: the pipe wall of the vertical type concealed pipe (1) is made of copper-aluminum alloy or polyoxymethylene resin materials, and the heat conduction supporting plate (2), the heat absorption cover (3) and the conical body (4) are made of copper-aluminum alloy materials.
10. A method of using a submerged arc tube salt collecting device for use in an underfilm drip irrigation interline in an arid area as claimed in any one of claims 1 to 9, comprising the steps of:
s1: assembling a concealed pipe salt collecting device, connecting a conical body (4) to the bottom of a vertical concealed pipe (1) through threads, welding a heat conduction supporting plate (2) in the vertical concealed pipe (1), placing a water absorbing material (6) in a cavity formed between the heat conduction supporting plate (2) and the vertical concealed pipe (1), embedding the top of the heat conduction supporting plate (2) into a groove surrounded by a boss (302) at the bottom of a heat absorbing cover (3), and connecting the heat absorption supporting plate and the heat absorbing supporting plate and the vertical concealed pipe together through screw holes by bolts;
s2: installing a concealed pipe salt collecting device, firstly performing farmland ploughing work, and paving a drip irrigation belt and a mulching film; then, inserting a buried pipe salt collecting device into the soil at the middle position with the distance of 1-3 meters along the laying direction of the drip irrigation belt, wherein the depth of the inserted soil is 60-80 cm, and the upper part of the device is 1-2 cm higher than the ground surface; if the soil quality is poor, firstly, excavating a soil pit with the width of 20 cm and the depth of 60-80 cm, vertically placing a buried pipe salt collecting device, and then burying soil;
s3: taking out and splitting the concealed pipe salt collecting device, carrying out normal irrigation, normal weeding and deinsectization according to the growth and fertility requirements of crops, taking out equipment from the soil before turning over the soil after the crops are harvested, splitting each part of the device, rotating the cone (4), disassembling bolts, taking out the water absorbing material (6) and delivering the water absorbing material to professionals for recycling;
s4: washing and recycling the concealed pipe salt collecting device, flushing the rest structure of the device with fresh water, placing the device at a drying place for airing, filling new water absorbing materials (6) into the vertical concealed pipe (1) the next year, and repeating the steps S1-S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310911124.4A CN116813006B (en) | 2023-07-21 | 2023-07-21 | A device and method for collecting salt in hidden tubes between rows under film drip irrigation in arid areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310911124.4A CN116813006B (en) | 2023-07-21 | 2023-07-21 | A device and method for collecting salt in hidden tubes between rows under film drip irrigation in arid areas |
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| Publication Number | Publication Date |
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| CN116813006A true CN116813006A (en) | 2023-09-29 |
| CN116813006B CN116813006B (en) | 2024-01-05 |
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| US5598661A (en) * | 1996-02-22 | 1997-02-04 | The Israeli International Company For Investments "Hatchiya Ltd." | Soil irrigation solar still system |
| CN104488391A (en) * | 2014-08-28 | 2015-04-08 | 重庆三峡学院 | Protective blanket used for land salinization control and manufacturing method thereof |
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| CN209420283U (en) * | 2019-01-24 | 2019-09-24 | 青岛农业大学 | A kind of heat preservation salt discharge device for varieties in saline-alkali areas |
| CN214545452U (en) * | 2021-01-29 | 2021-11-02 | 华中科技大学 | A kind of dark pipe desalination alkali device |
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