CN-117005367-B - Paddy field water-saving irrigation and tail water treatment system and method

CN117005367BCN 117005367 BCN117005367 BCN 117005367BCN-117005367-B

Abstract

The application relates to a paddy field water-saving irrigation and tail water treatment system and a method, wherein the paddy field water-saving irrigation and tail water treatment system comprises a main canal, branch canals, diversion canals, ring canals, gates, a water flow monitor and a water pump, wherein the main canal is communicated with the branch canals, the branch canals are communicated with the diversion canals arranged among a plurality of fields, the junction of the branch canals and the diversion canals is provided with the diversion gates, irrigation water enters the branch canals from the main canal and then flows into the diversion canals, the periphery of each field is provided with the ring canals, the junction between the ring canals is provided with the inner gates, the inner gates are opened to enable irrigation water to flow into the paddy field along the ring canals, the diversion canals are communicated with the middle canals positioned in the middle of each field, the middle canals are communicated with the drainage canals, the drainage gates are arranged at the junction of the ring canals and the middle canals, the water in the middle canals are drained to the middle canals through the water pump, the drainage gates are closed, the tail water gates at the junction of the middle canals and the junction of the diversion canals are opened, the tail water canals and the tail water in the junction of the diversion canals are returned to the diversion canals, the tail water is recycled, and the paddy field is utilized to realize water-saving irrigation. The treatment method has the same effects.

Inventors

ZHAO JIANWEN
LV YONGJIE
ZHAO KAI
LI JINKE
ZHANG QINGHUA
ZHAO JIANJUN

Assignees

宁夏广银米业有限公司

Dates

Publication Date: 20260512
Application Date: 20230807

Claims (5)

1. A paddy field water-saving irrigation and tail water treatment system, which is characterized by comprising: The utility model discloses a water pump, including water diversion ditch (3) and ring ditch (4) of setting between multi-disc field, main canal (1) intercommunication branch canal (2), branch canal (2) with branch canal (3) intercommunication, main canal (1) with the junction of branch canal (2) is provided with total gate (5), the junction of branch canal (2) with branch canal (3) is provided with branch gate (6), install water flow monitor (8) on branch canal (3), the junction between ring ditch (4) all is provided with inner gate (7), branch canal (3) intercommunication has middle canal (9) that are located every piece field, there is the difference in height between ring ditch (4) with middle canal (9), one side that middle canal (9) kept away from main canal (1) is connected with water drainage ditch (10), water drainage ditch (10) with junction (9) are provided with water drainage ditch (3), water drainage ditch (13) are provided with in the junction (13) in the water drainage ditch (3) is provided with in the water drainage ditch (13), the height of the middle channel (9) is higher than that of the annular channel (4); The height difference of the annular groove (4) is gradually decreased in a clockwise or anticlockwise direction, and a water pump (14) is arranged at the lowest point in the annular groove (4); The inner gate (7) comprises a feed gate (701), a feed gate (702) and a discharge gate (703), wherein the feed gate (701) is positioned at the junction of the annular channel (4) and the water diversion channel (3); Correspondingly, the access gate (702) is positioned at the junction of the annular groove (4) where the access gate (701) is positioned and the annular groove (4) in the horizontal direction; correspondingly, the outlet gate (703) is positioned at one end of the annular channel (4) where the inlet and outlet gate (702) is positioned, which is far away from the water diversion channel (3).
2. A paddy field water-saving irrigation and tail water treatment system according to claim 1, wherein one side of the diversion trench (3) and two sides of the middle trench (9) are both provided with production paths (15), and bridge openings (16) are arranged at the junction of the production paths (15) and the middle trench (9).
3. A paddy field water saving irrigation and tail water treatment system according to claim 1, wherein the width of the annular groove (4) is 6m and the depth is 1.5 m.
4. A paddy field water saving irrigation and tail water treatment system according to claim 1, wherein a throttle valve (17) is arranged on the branch canal (2).
5. A paddy field water-saving irrigation and tail water treatment method, according to any one of claims 1 to 4, characterized by comprising the steps of: opening a main gate and a branch gate, and putting quantitative irrigation water in the main gate and the branch gate; Opening the inlet gate, and keeping the inlet gate and the outlet gate in a closed state; After irrigation is carried out for a set time, opening the inlet gate and the outlet gate, and keeping the closed state of the outlet gate; After irrigation for a set time, opening the outlet gate; opening a water pump, and pumping tail water in the annular channel into the middle channel; during the first two times of irrigation, the drainage gate is opened, and the tail water gate is kept in a closed state; And in the third irrigation, the tail water gate is opened, and the drainage gate is kept in a closed state.

Description

Paddy field water-saving irrigation and tail water treatment system and method Technical Field The application relates to the technical field of agricultural irrigation, in particular to a paddy field water-saving irrigation and tail water treatment system and method. Background As the northern four seasons are clear, the illumination is sufficient, the temperature difference between day and night is large, and the accumulation of organic matters of rice is facilitated, the northern rice has higher amylopectin content, sticky taste, soft glutinous and chewy texture and better quality than the southern indica rice. The development of Ningxia with northwest and drought and less rain is severely dependent on yellow river water, no agricultural production exists without irrigation, the climate is warmed along with the gradual increase of irrigation area in recent years, the yellow river water quantity is reduced year by year, industrial and agricultural production water is contracted by year in order to solve the bottleneck of water resource shortage, and the agricultural water is stepped into a deep water-saving water control period. In fact, in Ningxia, one third of water enters a paddy field for growth of rice, one third of water evaporates into water vapor, one third permeates into soil and a circular ditch, 3-7 days can be kept after each time of paddy field is irrigated, the interval time of water discharge is generally 15-20 days, if no water irrigates the paddy field after 7 days, the growth and tillering of the rice are directly affected, the yield of the rice is reduced, the tail water of the paddy field is also provided with nutrient elements such as nitrogen, phosphorus and potassium, and the like, and the waste of water resources can be caused by direct discharge. At present, water-saving irrigation can be realized by adopting pressure irrigation technologies such as spray irrigation, drip irrigation and micro spray irrigation, but the pressure irrigation technologies have the problems of high initial investment and difficult operation and maintenance, so that the conventional ground irrigation technology is still a traditional irrigation mode widely adopted generally, and the Ningxia region has obvious characteristics, particularly, the problem that the water in the low-lying area is accumulated and the saline-alkali degree of a local paddy field is balanced cannot be solved by the conventional water-saving irrigation system, and the irrigation water quantity of each field cannot be monitored, so that the water-saving irrigation is not refined enough, and the refined water-saving irrigation system which is convenient to popularize and has high economic benefit and is suitable for the low-lying and saline-alkali lands and can recycle tail water resources is a technical problem to be solved urgently by technicians in the field. Disclosure of Invention In view of the above problems, the core of the application is to provide a paddy field water-saving irrigation and tail water treatment system and method, which can solve the problems of low-lying, saline-alkali soil water-saving irrigation, water resource recycling and tail water treatment. In order to solve the technical problems, the application provides a paddy field water-saving irrigation and tail water treatment system, which comprises: The water diversion system comprises a main canal, branch canals, a water diversion canal arranged between a plurality of fields and a ring canal arranged around the plurality of fields, wherein the main canal is communicated with the branch canals, the branch canals are communicated with the water diversion canal, a total gate is arranged at the joint of the main canal and the branch canals, the junction of the branch canals and the water diversion canal is provided with the water diversion gate, a water flow monitor is arranged on the water diversion canal, an inner gate is arranged at the junction between the ring canals, the water diversion canal is communicated with a middle canal positioned in the middle of each field, a height difference is arranged between the ring canal and the middle canal, one side of the middle canal away from the main canal is connected with the water drainage canal, the joint of the water drainage canal and the middle canal is provided with the water drainage gate, a water pump is arranged in the ring canal close to the middle canal, a tail water gate is arranged at the junction of the middle canal, and each field contains the plurality of fields. In one possible implementation manner, the height difference of the annular groove is gradually decreased in a clockwise or anticlockwise direction, and a water pump is arranged at the lowest point in the annular groove. Preferably, one side of the diversion channel and two sides of the middle channel are both provided with production channels, and bridge openings are arranged at the junction of the production channels and the middle chann