Anti-suck-back prevention pressure-compensation current stabilizer for agricultural irrigation

Abstract

The invention discloses an anti-suck-back pressure-compensation current stabilizer for agricultural irrigation, and particularly relates to the field of agricultural irrigation. The current stabilizercomprises a current stabilizer box body and an equipment base, a low-pressure pumping cavity and a pressure stabilizing cavity are formed in the current stabilizer box body, circulating hoses are fixedly connected to the end parts of a communicating pipe and an water outlet pipe opening, the output end of a clutch transmission box is fixedly connected to a rotating shaft, one end of the rotatingshaft is fixedly connected to a rotating abutting disc in a sleeved mode, a piston plate is slidably installed in the pressure stabilizing cavity, a limiting switch is embedded in the inner wall of the pressure stabilizing cavity, and an alarm prompt box is fixedly installed on one side of the current stabilizer box body. The piston plate is pushed to move by utilizing the reaction of the circulation resistance of the water-liquid pressure in the low-pressure pumping cavity, the internal volume of the pressure stabilizing cavity is enlarged to perform pressure release adjustment, pressure stabilizing adjustment of overlarge water-liquid pressure is realized, burst damage of a micro-irrigation pipeline caused by continuous high pressure is prevented, and water and soil loss of a root systemcaused by high-pressure water flow is prevented.

Description

technical field [0001] The invention relates to the technical field of agricultural irrigation, and more specifically, the invention is an anti-suckback pressure compensation flow stabilizer for agricultural irrigation. Background technique [0002] my country is a country with severe water shortage and waste of water resources in the world. Although the total water resources ranks sixth in the world at 2.8 trillion cubic meters, the actual usable water resources are only 1.1 trillion cubic meters, and the per capita water volume is the world's largest. No. 109; my country has 10 provinces, municipalities and autonomous regions whose water resources have fallen below the minimum survival line, and their per capita water resources are less than 1,000 cubic meters. Therefore, my country is one of the 13 water-poor countries in the world; The phenomenon of low efficiency is quite serious. Agriculture is the largest user of water consumption, accounting for more than 70% of the to...

AI Technical Summary

Problems solved by technology

[0004] When the micro-irrigation device is irrigating, the irrigation device still uses a water pump or a water tower to supply water pressure. Because the micro-irrigation water flow is small, the fluctuation of the water pressure has a great impact on irrigation. The water pressure of the traditional irrigation pumping device is very unstable, and the flow rate of the water liquid The size is also not fixed, resulting in large fluctuations in the pressure of the irrigation water. If the water pressure is too small, it will lead to an increase in the drought and mortality of the irrigation water. The mouth of the seepage irrigation pipe is prone to the problem of sucking back and entering debris, which will cause the mouth of the pipe to be blocked by debris. In addition, the excessive pressure of the water liquid will easily cause a large amount of water to be wasted. Laying at close distances, water erosion is prone to plant lodging and soil erosion caused by severe erosion near the plant root system

[0005] At present, the irrigation current stabilizer on the market, such as the one for irrigation disclosed in Chinese Patent No. CN207269528U, mainly drives the two baffles to move closer or farther away from each other through the double-threaded threaded rod to realize the water flow cavity. Increase or decrease, so as to control the flow, its structure is too simple, the scope of application is low, the degree of automation is low, manual adjustment is still required, and pressure compensation cannot be performed; in addition, a high resistance Blocking and anti-suckback pressure compensation regulator, which changes the cross-section of the water inlet through the deformation of the elastic diaphragm. When the water pressure increases to a certain value, the elastic diaphragm begins to deform. When the water pressure continues to increase, the elastic diaphragm The increase of the deformation will lead to the reduction of the cross-section formed by the elastic diaphragm and the flow-limiting boss, thereby playing the role of stabilizing the flow. Although the pressure compensation can be achieved through the deformation of the elastic diaphragm, the compensation power mainly comes from the water pressure. When the elastic energy storage is too large, the compensation range is too small and the practicability is low

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