CN205431335U - Field valving - Google Patents

Abstract

The utility model provides a field valving comprises three tee bend, a relief pressure valve, two interior tooth directnesses, two outer tooth directnesses, an air valve, a vacuum break valve, a ball valve summation section PVC water pipe, and advantages such as it has compact structure, spare part is few, the appearance is pleasing to the eye, economical and practical are used in water conservation irrigation engineering, is the valve of connecting main conduit and small transfer line, plays the effect that gets into branch pipe water pressure and flow from the trunk pipe of adjusting when serving as the switch.

Description

A kind of field valving

Technical field

This utility model belongs to water-saving irrigation field, is specifically related to a kind of valve control device for water-saving irrigation project.

Background technology

The Integration of Water into Fertilizer is the only way of agricultural modernization, by pipeline, water and nutrient are delivered directly to crop root, not only water-saving saves fertilizer, and labor productivity can be substantially increased, the particularly the Integration of Water into Fertilizer of Automated condtrol, makes up to ten thousand mu of farmlands of a personal management become possibility.In the case of the area irrigated is relatively big, put into reduce pumping plant construction, need farmland to be divided into multiple block, irrigation by rotation, therefore, manage for convenience, need piping network to be divided into supervisor, main, arm and hollow billet.

Drip irrigation equipment needs could normally work in certain range hydraulic pressure, the size in different plot differs, the crop of plantation is likely to differ, irrigation requirement is different, thus, need to arrange valve with main, main with arm supervisor, control hydraulic pressure and the flow of regional, it is ensured that regional is irrigated normally.

Field valving, is also field stem, it is simply that a kind of control each rotation flow group pipeline service pressure and switching device of flow.The most also not having special field valving at present, the most do not issue field valving industry standard, the field valve dress method of each water-fertilizer integral engineering differs, and field valve function is not known about by owner, there is the phenomenon of corrupt building practices or waste of material.

Summary of the invention

The purpose of this utility model is to provide that a kind of compact conformation, parts are few, good looking appearance, economical and practical field valving.

Field of the present utility model valving by three equal tees, air relief valve, two interior teeth directly, two outer teeth are direct, air cock, air admission valve, a ball valve sum section PVC water pipe form.

For convenience of the installation of each parts, above-mentioned parts are plastic material.Described threeway, also known as pipe fitting threeway or tee pipe fitting, three way cock etc., is used in main pipeline and wants at branched pipe, for changing the direction of fluid.Threeway has three opennings, i.e. one import, two outlets, or two imports, an outlet.T-shaped is had to divide, for three identical or different pipeline junctions with the reducing mouth of pipe with Y shape, the isometrical mouth of pipe.This utility model uses the threeway of the T-shaped isometrical mouth of pipe.

Air relief valve is by regulation, and inlet pressure reduces to the outlet pressure of a certain needs, and relies on the energy of medium itself, makes outlet pressure automatically keep stable valve.Air relief valve is divided into hand reducing pressure valve and automatic pressure reducing valve two kinds.Automatic pressure reducing valve possesses manually and automatically function, is the indispensable automation equipment of reading intelligent agriculture.Its common interfaces is female thread, therefore to be connected with pipeline, it needs by outer tooth directly as converting interface.

Air cock, is also air inlet, air bleeding valve, when its effect is pipeline water filling, and large quantity of air in air cock discharge line；During tube emptying, air cock sucks large quantity of air, it is to avoid in pipeline, air gathers or prevent to form negative pressure.Air admission valve is a kind of relief valve; it is mainly used in container or pipeline; run because of system at pipeline or container or stop and producing negative pressure or time vacuum is stepped up; this valve can automatically turn on; destroy vacuum effect; make pipeline and the unlikely generation of the miscellaneous equipment phenomenon such as split flat, recessed, to protect the safety of equipment.Relief valve is similar to the operation principle of air admission valve and purposes, their uninterrupted differring primarily in that intake and exhaust, and their interface is generally external screw thread, accepts with miscellaneous part, needs to use interior tooth directly as converting interface.

Accompanying drawing explanation

Fig. 1 is this utility model field valving；

In figure, numbering represents: 1 is the first threeway；2 is the second threeway；3 is the 3rd threeway；4 is air relief valve；5 is that outer tooth is direct；6 is that interior tooth is direct；7 is air cock；8 is air admission valve；9 is ball valve.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described, it should be noted that following example are a better embodiment of the present utility model rather than restriction of the present utility model.

Embodiment

As it is shown in figure 1, use pvc pipe and the equal tee of three DN90 of DN90, the ball valve of DN90, the air relief valve of 3 cun, the air cock of 2 cun and air admission valve, the most each two of the inside and outside tooth of 2 cun of hickeys, raw material band and PVC bonding glue special are appropriate.First measuring the degree of depth of all parts birdsmouth, calculate the pvc pipe length needed for accepting, vertically cut out with hacksaw, pvc pipe fracture polishes, and chip is wiped clean.The external screw thread raw material band of outer tooth directly (5) applies, and is respectively fitted on the internal thread interface at air relief valve (4) two ends, tightens, and outer tooth is directly bonding with the horizontal mouth of pipe of the first threeway (1) and the second threeway (2) respectively with pvc pipe；By same method, air cock (7) and air admission valve (8) are put interior tooth direct more bonding with the upper orifice of the upper orifice of the first threeway (1) and the second threeway (2) respectively with pvc pipe；The lower nozzle pvc pipe of the first threeway (1) and the upper orifice of the 3rd threeway (3) are bonding；The horizontal mouth of pipe of the 3rd threeway (3) is also bonding with ball valve (9) with pvc pipe；Finally, the lower nozzle of the second threeway (2) and the 3rd threeway (3) is bonding with pvc pipe respectively, just obtains field of the present utility model valving.

This field valving can customize in batch production, then installs with taking engineering project, it is also possible to in-site installation.There are parts few, compact conformation, feature attractive in appearance, practical.

Claims (2)

1. a field valving, it is characterised in that: its structure include three threeways, air relief valve, two interior teeth directly, two outer teeth are direct, air cock, air admission valve, a ball valve sum section PVC water pipe.

Field the most according to claim 1 valving, it is characterised in that: its connected mode is, air relief valve two ends are directly connected by screw socket with two outer teeth respectively；Two direct mouths of pipe of outer tooth horizontal mouth of pipe with pvc pipe and the first threeway and the second threeway respectively is bonding；In the upper orifice pvc pipe of the first threeway and first, the direct mouth of pipe of tooth is bonding, and in first, the direct screw socket of tooth is connected with air cock；In the upper orifice pvc pipe of the second threeway and second, the direct mouth of pipe of tooth is bonding, and in second, the direct screw socket of tooth is connected with air admission valve；The lower nozzle pvc pipe of the first threeway and the upper orifice of the 3rd threeway are bonding；The horizontal mouth of pipe of the 3rd threeway is also bonding with ball valve with pvc pipe；The lower nozzle of the second threeway and the 3rd threeway is bonding with pvc pipe respectively.