CN104549807B - Unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer and mounting and application method thereof - Google Patents
Unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer and mounting and application method thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000007921 spray Substances 0.000 claims abstract description 39
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 238000003973 irrigation Methods 0.000 claims abstract description 20
- 230000002262 irrigation Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000003621 irrigation water Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- 238000013475 authorization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
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- 239000008358 core component Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
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Abstract
一种无阻挡全圆喷洒稳压防滴雾化微喷头，包括喷头帽、与喷头帽匹配安装的喷头体、与喷头体连接的折射体，其特征在于：喷头体通过截面为T形的固定杆连接折射体；喷头体内部中空，具有与固定杆安装相适配的截面为T形的腔体，折射体具有固定杆安装孔，固定杆安装在喷头体的腔体内，伸出末端插入折射体内与安装孔紧配合；上述无阻挡全圆喷洒稳压防滴雾化微喷头的安装使用方法：首先安装微喷头，然后将微喷头的喷头帽与喷灌设备的进水管道通过螺纹或斜口接头连接，根据稳压防滴膜片的弹性大小确定微喷头的打开压力值，当进水管道内水压大于微喷头的打开压力值时，喷灌水流流经稳压防滴膜片遇折射体后雾化，实现全圆喷洒。
An unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler head, comprising a nozzle cap, a nozzle body matched with the nozzle cap, and a refracting body connected to the nozzle body, characterized in that the nozzle body passes through a T-shaped fixed The rod is connected to the refractor; the nozzle body is hollow inside and has a T-shaped cavity that is suitable for the installation of the fixed rod. The refractor has a mounting hole for the fixed rod. The body is closely matched with the installation hole; the installation and use method of the above-mentioned unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-spray head: first install the micro-spray head, and then connect the nozzle cap of the micro-spray head and the water inlet pipe of the sprinkler irrigation equipment through the thread or oblique opening The joint is connected, and the opening pressure value of the micro-spray head is determined according to the elasticity of the anti-drip diaphragm of the stabilized pressure. Post atomization for full circle spraying.
Description
技术领域technical field
本发明涉及微水灌溉领域微喷头设备，特别是一种无遮挡全圆喷洒稳压防滴雾化微喷头。The invention relates to micro-sprinkler equipment in the field of micro-water irrigation, in particular to an unshielded full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler.
背景技术Background technique
近年来，由于微灌具有节水、灌溉均匀度高、省工、节肥、增产等诸多优点，发展迅速，得到了广泛使用，已成为农业生产中的重要技术手段，目前全国微灌应用面积已达到3000多万亩。In recent years, because micro-irrigation has many advantages such as water saving, high irrigation uniformity, labor saving, fertilizer saving, and production increase, it has developed rapidly and has been widely used. It has become an important technical means in agricultural production. At present, the national micro-irrigation application area It has reached more than 30 million mu.
微灌主要包括滴灌和微喷灌两种形式。微喷灌是通过管道系统利用折射或旋转式微喷头将低压水或化学药剂以微流量低压喷洒在枝叶上或地面上的一种灌水形式。微喷灌的工作压力低，流量小，有利于消除含水饱和区，使水分能被土壤随时吸收，改善了根区通气条件，既可以定时定量的增加土壤水分，又能提高空气湿度，调节局部小气候。微喷灌广泛应用于蔬菜、花卉、果树、药材的种植，以及育苗、养殖场等区域的加湿降温。Micro-irrigation mainly includes two forms of drip irrigation and micro-sprinkler irrigation. Micro-sprinkler irrigation is a form of irrigation that uses refracting or rotating micro-sprinklers to spray low-pressure water or chemicals with micro-flow and low pressure on branches and leaves or on the ground through a pipeline system. The working pressure of micro-sprinkler irrigation is low and the flow rate is small, which is beneficial to eliminate the water-saturated area, so that water can be absorbed by the soil at any time, and improves the ventilation conditions of the root zone. It can not only increase the soil moisture in a regular and quantitative manner, but also increase the air humidity and adjust the local microclimate. . Micro-sprinkler irrigation is widely used in the planting of vegetables, flowers, fruit trees, and medicinal materials, as well as the humidification and cooling of areas such as seedlings and farms.
微喷头是微喷灌系统中的核心部件，目前应用较多的微喷头主要有旋转式和折射式两种。旋转式有一旋转体，水流经喷嘴射向旋转体后，旋转体使水流按一定的角度喷出，同时还反作用于旋转体本身，使其受撞击高速旋转，从而将水流粉碎成滴状抛出，形成较大喷幅；折射式微喷头是利用折射锥来分散水流，工作时水流由喷嘴垂直射向折射锥，被击散成薄水层向四周射出，在空气阻力作用下形成细小水滴散落在地面上。旋转式微喷头雾滴直径较大，射程较远，适合灌溉补水使用；折射式微喷头，又称雾化喷头，雾滴直径较小，射程较近，适合育苗、加温降温使用。The micro-sprinkler is the core component of the micro-sprinkler irrigation system. At present, there are two types of micro-sprinklers that are widely used: rotary type and refraction type. The rotary type has a rotating body. After the water flows through the nozzle and shoots to the rotating body, the rotating body makes the water flow spray out at a certain angle, and at the same time reacts on the rotating body itself, causing it to rotate at a high speed after being hit, so that the water flow is crushed into drops and thrown out. , to form a larger spray width; the refraction micro-spray head uses the refraction cone to disperse the water flow. When working, the water flow is shot vertically from the nozzle to the refraction cone, and is scattered into a thin water layer to shoot around. on the ground. The rotary micro-sprinkler has a larger droplet diameter and a longer range, and is suitable for irrigation and water replenishment; the refracting micro-sprinkler, also known as an atomizing nozzle, has a smaller droplet diameter and a shorter range, and is suitable for seedling cultivation, heating and cooling.
目前折射式微喷头主要有支架、折射锥、喷嘴等结构组成，当喷头工作时支架会阻挡一部分水，形成一定区域的无水区，无法达到全圆喷洒，大大影响了灌溉均匀度和使用效果。At present, the refraction micro-spray head mainly consists of a bracket, a refraction cone, and a nozzle. When the sprinkler head is working, the bracket will block a part of the water, forming a certain area without water, which cannot achieve full-circle spraying, which greatly affects the uniformity of irrigation and the use effect.
当压力低于一定值时，折射式微喷头的水滴很大，不能形成雾状，甚至成水流状，完全不能满足使用要求。当灌溉系统停止工作时，管道中还会留有一部分水，通过喷嘴滴出，这样喷头附近的水量会过多，影响作物生长。所以折射式微喷头必须高于一定压力才能让其工作，目前解决方法是外加防滴阀，而防滴阀结构复杂，价格较高，是微喷头价格的1～2倍，使得整套微喷头成本大大增加，影响了微喷头的推广应用。When the pressure is lower than a certain value, the water droplets of the refraction micro-spray head are too large to form mist or even flow, which cannot meet the requirements of use at all. When the irrigation system stops working, some water will remain in the pipes and drip out through the nozzles, so that the amount of water near the nozzles will be too much, which will affect the growth of crops. Therefore, the refraction micro-spray head must be higher than a certain pressure to make it work. The current solution is to add an anti-drip valve, but the structure of the anti-drip valve is complex and the price is high, which is 1 to 2 times the price of the micro-spray head, which makes the cost of the whole set of micro-spray heads greatly. The increase has affected the popularization and application of micro-sprinklers.
中国专利授权公告号：CN 203610238 U，授权公告日：2014年05月28日，公开了“一种无架梁多功能节水旋转微喷头，它包含喷头支架座、叶片型小水量控制器、圆形装配套管、叶片型出水管架及T型出水旋转喷头，能克服现有技术的弊端，与同类G型喷头相比其优点是无架梁阻碍，喷水360°均匀。”这种微喷头结构较复杂，成本较高，没有解决低压时滴水、不能雾化情况。China patent authorization announcement number: CN 203610238 U, authorization announcement date: May 28, 2014, disclosed "a multifunctional water-saving rotating micro-sprinkler without a beam, which includes a nozzle bracket seat, a blade-type small water volume controller, The circular assembly sleeve, the blade-shaped water outlet pipe frame and the T-shaped water outlet rotating nozzle can overcome the drawbacks of the existing technology, and compared with the same G-type nozzle, its advantage is that there is no barrier from the frame beam, and the water sprays 360° evenly." This kind of The structure of the micro-spray head is relatively complicated, and the cost is high, and it does not solve the problem of water dripping and atomization at low pressure.
中国专利授权公告号：CN 202238402 U，授权公告日：2012年05月30日，公开了“一种新型无遮挡微喷，它包含外螺母帽、垫片、微喷头、轴承、浮筒和主体；它解决了以往微喷滴水的情况，在外观上更加简洁，能真正的实现360度旋转工作。”这种微喷头结构较复杂，特别是有轴承，成本较高，同时没有解决低压时不能雾化情况。China patent authorization announcement number: CN 202238402 U, authorization announcement date: May 30, 2012, disclosed "a new type of unshielded micro-spray, which includes an outer nut cap, a gasket, a micro-spray head, a bearing, a float and a main body; It solves the problem of dripping water in the micro-spray in the past, and it is more concise in appearance, and can truly realize 360-degree rotation." The structure of this micro-spray head is relatively complicated, especially with bearings, and the cost is high. At the same time, it does not solve the problem of fogging at low pressure situation.
综上所述，现有折射式雾化微喷头主要存在支架阻挡不能实现全圆喷洒、压力低时滴水、不能雾化以及价格偏高等问题。To sum up, the existing refraction atomizing micro-sprinklers mainly have the problems of being blocked by the bracket, unable to realize full-circle spraying, water dripping when the pressure is low, inability to atomize, and high price.
发明内容Contents of the invention
本发明提供一种无阻挡全圆喷洒稳压防滴雾化微喷头。本发明采用的技术方案为：The invention provides an unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler head. The technical scheme adopted in the present invention is:
一种无阻挡全圆喷洒稳压防滴雾化微喷头，包括喷头帽、与喷头帽匹配安装的喷头体、与喷头体连接的折射体，其特征在于：喷头体通过截面为T形的固定杆连接折射体；喷头体内部中空，具有与固定杆安装相适配的截面为T形的腔体，折射体具有固定杆安装孔，固定杆安装在喷头体的腔体内，伸出末端插入折射体内与安装孔紧配合。An unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler head, comprising a nozzle cap, a nozzle body matched with the nozzle cap, and a refracting body connected to the nozzle body, characterized in that: the nozzle body passes through a T-shaped fixed The rod is connected to the refractor; the nozzle body is hollow inside and has a T-shaped cavity that is suitable for the installation of the fixed rod. The refractor has a fixed rod installation hole, and the fixed rod is installed in the cavity of the nozzle body. The body fits tightly with the mounting hole.
进一步，喷头体的腔体内安装稳压防滴膜片，整体截面呈T形，内部贯通阶梯孔，截面为T形，固定杆插入其中，通过稳压防滴膜片安装在喷头体的腔体内，稳压防滴膜片为弹性膜片，无压力状态下稳压防滴膜片压紧固定杆，呈密封状态。Further, a pressure-stabilizing anti-drip diaphragm is installed in the cavity of the nozzle body. The overall cross-section is T-shaped, and the inside is through a stepped hole. The cross-section is T-shaped. , The stabilized anti-drip diaphragm is an elastic diaphragm, and the stabilized anti-drip diaphragm is pressed against the fixing rod under no pressure to form a sealed state.
进一步，喷头帽内部中空，分为两个腔体，前后贯通，其中，前部腔体与进水管道连通，后部腔体安装喷头体；后部腔体沿水流方向开口逐渐增大，内表面锥度为1.2:100，喷头体前端与喷头帽后部腔体相适配，喷头体尾部卡接在喷头帽末端，喷头体与喷头帽紧密配合。Further, the nozzle cap is hollow inside and is divided into two cavities, which are connected front and back, wherein the front cavity is connected with the water inlet pipe, and the rear cavity is installed with the nozzle body; the opening of the rear cavity gradually increases along the direction of water flow, and the inner cavity The surface taper is 1.2:100, the front end of the nozzle body is compatible with the cavity at the rear of the nozzle cap, the tail of the nozzle body is clipped to the end of the nozzle cap, and the nozzle body and the nozzle cap are closely matched.
进一步，喷嘴设在喷头体尾部，固定杆由安装在喷头体腔体内的纵杆和用于插入折射体内的横杆组成，固定杆的横杆穿过喷头体尾部喷嘴与折射体连接，喷嘴内径大于横杆直径，喷嘴内径为1.0～1.5mm，横杆直径为0.6～1.0mm，喷嘴距离折射体的折射面4～6mm。Further, the nozzle is arranged at the tail of the nozzle body, and the fixed rod is composed of a vertical rod installed in the cavity of the nozzle body and a cross bar for inserting into the refracting body. The cross rod of the fixed rod passes through the nozzle at the tail of the nozzle body and is connected with the refracting body. The inner diameter of the nozzle is larger than The diameter of the crossbar, the inner diameter of the nozzle is 1.0-1.5mm, the diameter of the crossbar is 0.6-1.0mm, and the distance between the nozzle and the refraction surface of the refraction body is 4-6mm.
进一步，喷头帽通过螺纹或斜口接头与进水管道连接。Further, the nozzle cap is connected with the water inlet pipe through a screw thread or an oblique joint.
本发明还提供上述无阻挡全圆喷洒稳压防滴雾化微喷头的安装使用方法，其特征在于包括如下步骤：The present invention also provides a method for installing and using the above-mentioned unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-spray head, which is characterized in that it includes the following steps:
一、安装微喷头：首先将固定杆插入稳压防滴膜片内，然后将稳压防滴膜片安装在喷头体腔体内，稳压防滴膜片前部与喷头体的T形腔体前部紧配合，稳压防滴膜片后部与喷头体的T形腔体后部间隙配合，固定杆的横杆依次穿过喷头体的T形腔体、喷嘴；将喷头体前端安装在喷头帽的后部腔体内，喷头体尾部卡接在喷头帽末端，喷头体与喷头帽紧密配合；将固定杆的横杆插入折射体的安装孔内紧密配合；1. Install the micro-spray head: first insert the fixing rod into the anti-drip diaphragm of the stabilized voltage, and then install the anti-drip diaphragm in the nozzle body cavity, the front of the anti-drip diaphragm and the T-shaped cavity of the nozzle body The parts are tightly fitted, the rear part of the anti-drip diaphragm and the T-shaped cavity of the nozzle body are closely matched, and the cross bar of the fixed rod passes through the T-shaped cavity of the nozzle body and the nozzle in sequence; the front end of the nozzle body is installed on the nozzle body. In the rear cavity of the cap, the tail of the nozzle body is clamped at the end of the nozzle cap, and the nozzle body and the nozzle cap are closely matched; the cross bar of the fixing rod is inserted into the installation hole of the refractor to closely fit;
二、将步骤一中安装好的微喷头的喷头帽与喷灌设备的进水管道通过螺纹或斜口接头连接，根据稳压防滴膜片的弹性大小确定微喷头的打开压力值为180～200kPa，关闭压力值为160～180kPa，当进水管道内水压大于微喷头的打开压力值时，喷灌水流自进水管道依次流经喷头帽内部腔体进入喷头体内部腔体，稳压防滴膜片发生弹性形变，与固定杆间形成水流间隙，喷灌水流流经稳压防滴膜片通过喷头体尾部喷嘴喷射而出，遇折射体经折射面反射后雾化，喷头体与折射体之间无周向阻挡，实现全圆喷洒。2. Connect the nozzle cap of the micro-sprinkler installed in step 1 to the water inlet pipe of the sprinkler irrigation equipment through a threaded or oblique joint, and determine the opening pressure value of the micro-sprinkler according to the elasticity of the pressure-stabilizing anti-drip diaphragm to be 180-200kPa , the closing pressure value is 160 ~ 180kPa, when the water pressure in the water inlet pipe is greater than the opening pressure value of the micro sprinkler head, the sprinkler irrigation water flows from the water inlet pipe through the inner cavity of the nozzle cap and enters the inner cavity of the nozzle body, stabilizing the pressure and preventing dripping The diaphragm is elastically deformed, forming a water flow gap with the fixed rod. The sprinkling water flows through the stabilized anti-drip diaphragm and is sprayed out through the nozzle at the tail of the nozzle body. There is no circumferential barrier between them, realizing full-circle spraying.
本发明的无阻挡全圆喷洒稳压防滴雾化微喷头，采用固定杆一端安装在喷头体内，另一端插入折射体中心安装孔的方式，将喷头体与折射体连接，与采用周向支架连接喷头体和折射体的常规微喷头相比，避免了水流从喷嘴中射出经折射体反射雾化后周向受支架阻挡而导致的不能实现全圆喷洒的问题，折射体折射面距喷嘴距离4～6mm，使水量均匀分布在以喷头为中心的圆面上，保证了喷洒更加均匀，与现有的微喷头相比具有喷水射程更大、水量分布均匀等优点。The non-blocking full-circle spraying stabilized pressure anti-drip atomizing micro-spray head of the present invention uses one end of the fixed rod to be installed in the nozzle body, and the other end is inserted into the central installation hole of the refractor to connect the nozzle body with the refractor, and adopts a circumferential bracket Compared with the conventional micro-spray head connecting the nozzle body and the refractor, it avoids the problem that the water flow from the nozzle is sprayed from the nozzle and is reflected and atomized by the refractor. 4 ~ 6mm, so that the water is evenly distributed on the circular surface centered on the nozzle, which ensures a more uniform spraying. Compared with the existing micro-spray, it has the advantages of larger spraying range and uniform water distribution.
同时，采用弹性稳压防滴膜片与固定杆紧密配合来控制水压，根据稳压防滴膜片的弹性大小可确定喷头打开压力值和关闭压力值，当水压低于一定压力值时，水流不能通过稳压防滴膜片，喷嘴即刻关闭，避免了常规微喷头关闭后，管道内水流由喷嘴继续滴出的问题，防止喷头附近区域水量过多。At the same time, the elastic stabilized anti-drip diaphragm is closely matched with the fixed rod to control the water pressure. According to the elasticity of the stabilized anti-drip diaphragm, the opening pressure value and closing pressure value of the nozzle can be determined. When the water pressure is lower than a certain pressure value, The water flow cannot pass through the pressure-stabilized anti-drip diaphragm, and the nozzle is closed immediately, which avoids the problem that the water flow in the pipeline continues to drip out of the nozzle after the conventional micro-spray head is closed, and prevents the area near the nozzle from excessive water.
喷头帽与喷头体采用锥度配合，拆装也更方便，微喷头喷嘴直径1.0～1.5mm，固定杆横杆直径0.6～1.0mm，可通过喷嘴孔径和固定杆直径大小确定微喷头流量。流量可通过下式计算：q＝0.9μπ(d喷 2-d杆 2)*(2gp)^0.5，式中q为微喷头流量，μ为流量系数，d喷为喷嘴直径，d杆为固定杆直径，g为重力加速度，p为喷嘴处压力。微喷头经过上述设计，各结构性能参数为：微喷头工作压力200～300kPa，流量30～70L/h，喷洒直径2.0～2.5m，雾粒直径分布范围为150～330μm。The nozzle cap and the nozzle body adopt a taper fit, which is more convenient for disassembly and assembly. The nozzle diameter of the micro-spray head is 1.0-1.5mm, and the diameter of the fixed rod crossbar is 0.6-1.0mm. The flow rate of the micro-spray head can be determined by the diameter of the nozzle aperture and the diameter of the fixed rod. The flow rate can be calculated by the following formula: q=0.9μπ(d spray 2 -d rod 2 )*(2gp)^0.5, where q is the flow rate of the micro nozzle, μ is the flow coefficient, d spray is the diameter of the nozzle, and d rod is the fixed Rod diameter, g is the acceleration due to gravity, and p is the pressure at the nozzle. After the above design of the micro-spray head, the structural performance parameters are as follows: the working pressure of the micro-spray head is 200-300kPa, the flow rate is 30-70L/h, the spraying diameter is 2.0-2.5m, and the distribution range of the mist particle diameter is 150-330μm.
当有压力水通过喷头帽接头，进入喷头体内腔时，由于稳压防滴膜片紧压在固定杆上，压力较小时水不能通过，随着压力逐步增加，稳压防滴膜片开始变形直至完全打开，水通过内腔到达喷嘴处，水流由喷嘴垂直射向折射体，被击散成薄水层向四周射出，在空气阻力作用下形成细小雾滴散落在微喷头四周。当关闭输水系统时，喷头体内腔压力逐步减小，达到一定值后，稳压防滴膜片又紧压在固定杆上，防止在低压情况下水从喷嘴处流出。When water under pressure passes through the nozzle cap joint and enters the inner cavity of the nozzle, since the pressure-stabilizing anti-drip diaphragm is pressed tightly on the fixed rod, the water cannot pass through when the pressure is low. As the pressure gradually increases, the anti-drip diaphragm begins to deform Until it is fully opened, the water reaches the nozzle through the inner cavity, and the water flow is shot vertically from the nozzle to the refracting body, and is scattered into a thin water layer to shoot around, and forms fine mist droplets scattered around the micro-sprinkler head under the action of air resistance. When the water delivery system is closed, the pressure in the inner cavity of the nozzle gradually decreases, and when it reaches a certain value, the pressure-stabilizing anti-drip diaphragm is tightly pressed against the fixed rod to prevent water from flowing out of the nozzle under low pressure.
本发明具有以下优点：1、本发明通过各部分结构、尺寸的优化设计，使得喷水时没有阻挡，实现了真正全圆喷洒，提高了灌水均匀度；2、本发明通过稳压防滴膜片和固定杆，实现了低压时喷头关闭，避免了雾化不好和滴水现象，大大提高了使用性能；3、本发明结构简单、成本低廉，能广泛应用于微喷灌系统中，具有较好的经济价值和产业价值，值得推广。该微喷头结构简单、成本低廉、能真正实现全圆喷洒、在较高压力下才打开、确保雾化且不滴水。The present invention has the following advantages: 1. Through the optimized design of the structure and size of each part, the present invention makes water spraying unstoppable, realizes true full-circle spraying, and improves the uniformity of irrigation; 2. The present invention stabilizes the anti-drip film through 3. The invention has a simple structure and low cost, and can be widely used in micro-sprinkler irrigation systems, and has better performance. Its economic value and industrial value are worthy of promotion. The micro-spray head has simple structure, low cost, can truly realize full-circle spraying, only opens under relatively high pressure, ensures atomization and does not drip water.
附图说明Description of drawings
图1是本发明具体实施方式的无阻挡全圆喷洒稳压防滴雾化微喷头的分解结构示意图；Fig. 1 is a schematic diagram of an exploded structure of an unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler according to a specific embodiment of the present invention;
图2是本发明具体实施方式的无阻挡全圆喷洒稳压防滴雾化微喷头的装配结构示意图；Fig. 2 is a schematic diagram of the assembly structure of an unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler according to a specific embodiment of the present invention;
图3是本发明具体实施方式的无阻挡全圆喷洒稳压防滴雾化微喷头的外观示意图。Fig. 3 is a schematic diagram of the appearance of the unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro-sprinkler head according to the specific embodiment of the present invention.
图中：1-喷头帽；2-固定杆；3-稳压防滴膜片；4-喷头体；5-折射体。In the figure: 1-nozzle cap; 2-fixing rod; 3-stabilized anti-drip diaphragm; 4-nozzle body; 5-reflector.
具体实施方式detailed description
下面结合实施例及附图对本发明作进一步详细的描述，但发明的实施方式不限于此。The present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the invention are not limited thereto.
如图所示，一种无阻挡全圆喷洒稳压防滴雾化微喷头，包括喷头帽1、固定杆2、稳压防滴膜片3、喷头体4和折射体5。As shown in the figure, an unobstructed full-circle spraying stabilized pressure anti-drip atomizing micro sprinkler head includes a nozzle cap 1 , a fixed rod 2 , a stabilized pressure anti-drip diaphragm 3 , a nozzle body 4 and a refracting body 5 .
所述喷头帽1内表面具有锥度1.2:100，喷头体4外表面具有相同锥度，两者内外表面通过锥度紧密配合。喷头帽1可通过螺纹或斜口接头与管道相连接。The inner surface of the nozzle cap 1 has a taper of 1.2:100, the outer surface of the nozzle body 4 has the same taper, and the inner and outer surfaces of the two are closely matched through the taper. The nozzle cap 1 can be connected with the pipeline through a screw thread or an oblique joint.
所述固定杆2穿过稳压防滴膜片3中间孔，稳压防滴膜片3具有弹性，紧压在固定杆2上，呈密封状态。可通过膜片的弹性大小，确定微喷头打开和关闭压力值。本实施例微喷头打开压力值为180～200kPa，关闭压力为160～The fixed rod 2 passes through the middle hole of the pressure-stabilizing anti-drip diaphragm 3, and the voltage-stabilizing anti-drip diaphragm 3 has elasticity and is tightly pressed on the fixed rod 2 in a sealed state. The opening and closing pressure value of the micro-spray head can be determined by the elasticity of the diaphragm. The opening pressure value of the micro-spray head of this embodiment is 180～200kPa, and the closing pressure is 160～200kPa.
180kPa。180kPa.
所述固定杆2和稳压防滴膜片3整体放置在喷头体4内腔中，同时固定杆2一端穿过喷头体4的喷嘴与折射体5相连接，喷水时没有阻挡，实现了全圆喷洒。The fixed rod 2 and the pressure-stabilizing anti-drip diaphragm 3 are integrally placed in the inner cavity of the nozzle body 4, and at the same time, one end of the fixed rod 2 passes through the nozzle of the nozzle body 4 and is connected to the refractor 5, so that there is no obstruction when spraying water, realizing Spray in a full circle.
所述折射体5折射面距喷嘴距离4～6mm，使水量均匀分布在以喷嘴为中心的圆面上，保证了喷洒更加均匀，与现有的微喷头相比具有喷水射程更大、水量分布均匀等优点。The distance between the refraction surface of the refractor 5 and the nozzle is 4-6mm, so that the water volume is evenly distributed on the circular surface centered on the nozzle, ensuring a more uniform spraying. Uniform distribution and other advantages.
所述实施例喷嘴直径1.5mm，固定杆直径0.9mm，各结构性能参数为：微喷头工作压力200～300kPa，流量50～70L/h，喷洒直径2.2～2.5m，雾粒直径分布范围为180～330μm。The diameter of the nozzle in the embodiment is 1.5mm, the diameter of the fixed rod is 0.9mm, and the structural performance parameters are: the working pressure of the micro-spray head is 200-300kPa, the flow rate is 50-70L/h, the spraying diameter is 2.2-2.5m, and the distribution range of the mist particle diameter is 180 ~330 μm.
所述微喷头工作过程为：当有压力水通过喷头帽1接头，进入喷头体4内腔时，由于稳压防滴膜片3紧压在固定杆2上，压力较小时水不能通过，随着压力逐步增加，稳压防滴膜片3开始变形直至完全打开，水通过内腔到达喷嘴处，水流由喷嘴垂直射向折射体5，被击散成薄水层向四周射出，在空气阻力作用下形成细小水雾散落微喷头四周。当关闭输水系统时，喷头体4内腔压力逐步减小，达到一定值后，稳压防滴膜片3又紧压在固定杆2上，防止在低压情况下水从喷嘴处流出。The working process of the micro-spray head is as follows: when the pressurized water enters the inner cavity of the nozzle body 4 through the joint of the nozzle cap 1, since the pressure-stabilizing anti-drip diaphragm 3 is pressed tightly on the fixed rod 2, the water cannot pass through when the pressure is low, and then As the pressure gradually increases, the pressure-stabilizing anti-drip diaphragm 3 begins to deform until it is fully opened, and the water reaches the nozzle through the inner cavity. Under the action, a fine water mist is formed and scattered around the micro nozzle. When the water delivery system is closed, the pressure in the inner cavity of the nozzle body 4 decreases gradually. After reaching a certain value, the anti-drip diaphragm 3 of the stabilized pressure is pressed tightly on the fixed rod 2 to prevent water from flowing out of the nozzle under low pressure.
上述实施例仅为本发明的较佳实施例，并非用来限定本发明的实施范围。即凡依本发明内容所作的均等变化与修饰，都为本发明权利要求所要求保护的范围所涵盖。The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention. That is, all equivalent changes and modifications made according to the content of the present invention are covered by the protection scope of the claims of the present invention.
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