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Low-pressure pipeline water-delivering irrigation water outlet

A technology for low-pressure pipelines and water outlets, which is applied in watering devices, applications, and valve lifts. It can solve the problems of large internal water head loss, inability to measure flow at the water outlet, and inability to quantitatively control the water flow, so as to prevent field erosion and reduce water loss. Internal head loss, increased outflow effect

Inactive Publication Date: 2014-08-20
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages that the current low-pressure pipeline water delivery irrigation outlet can not measure the flow, can not quantitatively control the water flow and the internal water head loss is relatively large.

Method used

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  • Low-pressure pipeline water-delivering irrigation water outlet
  • Low-pressure pipeline water-delivering irrigation water outlet

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing:

[0016] The present invention includes three major parts: an upper box body 1, a lower base 2 and a water outlet stilling pool 3.

[0017] The upper box body 1 is prefabricated with cement concrete. Its width and length are suitable for installing various opening and closing devices in the box body. The net height of the box body is suitable for turning the flip cover plate 11 upward by 70°; it should be divided into three parts during prefabrication Prefabrication: the bottom surface, top surface and two sides are the first part, the front (with water outlet) and the back are the second and third parts respectively. The first part of the prefabricated components should be appropriately arranged with steel bars or steel wires to prevent the top panel from being lifted up due to excessive force when closing the flip cover 11; the height and width of the second and third part ...

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Abstract

The invention provides a low-pressure pipeline water delivery irrigation outlet, which includes a lower base, an upper box body and a water outlet stilling pool. The center of the lower base contains a riser, and an upper box body is placed; The water inlet of the bottom plate of the riser is provided with two hinge supports fixed by fastening bolts on the bottom wall of the upper box on the side of the water inlet of the bottom plate. The hinge supports are connected with a flip cover covering the water inlet of the bottom plate. A circle of water-stop rubber is bonded to the facing surface of the overturned cover; a manual screw opening and closing device is installed on the top surface of the upper box, and the overturned cover is connected to the overturned cover through a hinged connecting rod; a water outlet is provided on the side wall of the upper box. A water outlet stilling tank with a flow measurement scale is installed adjacent to the lower base on one side of the water outlet. The invention adapts to the requirement of large flow, has small internal water head loss, can dissipate energy and prevent scour, can quantitatively control the flow of water, and improves the uniformity of irrigation water.

Description

technical field [0001] The invention relates to a water outlet for low-pressure pipeline water delivery irrigation, in particular to a water outlet capable of measuring flow and quantitatively controlling flow for low-pressure pipeline water delivery irrigation. Background technique [0002] Low-pressure pipeline water delivery irrigation has been popularized and applied on a large scale in well-irrigated and dry farming areas. In recent years, low-pressure pipeline water delivery irrigation has also received attention in rice-growing areas, and its promotion and application prospects are good. However, the current water outlet or water supply plug made of cast iron or plastic mainly considers the needs of dry farming irrigation in well irrigation areas, and the water flow is small, which is difficult to meet the large flow irrigation requirements of rice fields. [0003] In the well irrigation area, due to the limitation of the flow rate of the pumped well, there are usuall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G25/00F16K1/18F16K31/50F16K31/60
Inventor 蔡守华
Owner YANGZHOU UNIV
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