WO2021128760A1 - 一种超高压水射流涡轮式管道清洗喷头 - Google Patents

一种超高压水射流涡轮式管道清洗喷头 Download PDF

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Publication number
WO2021128760A1
WO2021128760A1 PCT/CN2020/096170 CN2020096170W WO2021128760A1 WO 2021128760 A1 WO2021128760 A1 WO 2021128760A1 CN 2020096170 W CN2020096170 W CN 2020096170W WO 2021128760 A1 WO2021128760 A1 WO 2021128760A1
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Prior art keywords
rotating shaft
pressure water
gap
water jet
type pipeline
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PCT/CN2020/096170
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English (en)
French (fr)
Inventor
陈世伟
李枝城
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拉思丁科技(深圳)有限公司
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Publication of WO2021128760A1 publication Critical patent/WO2021128760A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening

Definitions

  • the invention relates to the field of industrial technology, in particular to an ultra-high pressure water jet turbine type pipeline cleaning nozzle.
  • High-pressure water jet cleaning belongs to physical cleaning, and high-pressure water jet cleaning has become the mainstream cleaning technology in industrially developed countries. In Germany, Japan, British, France and other countries, its market share has reached more than 80%, and in the United States it even accounts for 90% of the cleaning industry. In my country's cleaning industry, 70% is chemical cleaning, and high-pressure water jets account for only about 20%.
  • High-pressure water jet cleaning gradually replaces traditional chemical cleaning with the concept of environmental protection and high efficiency.
  • the attachments of the pipeline are hard and strong.
  • To remove this kind of scale not only sufficient water pressure (700 ⁇ 2800bar) and flow rate (10 ⁇ 200L) are required, and the jet cannot be formed due to the rapid rotation of the nozzle. Atomization leads to reduced impact. Under the influence of factors such as high temperature and rotational wear caused by high pressure and high flow rate, this poses a big problem for the cleaning efficiency and service life of the nozzle.
  • the present invention provides an ultra-high pressure water jet turbine type pipeline cleaning nozzle, which solves the problems raised in the background art.
  • An ultra-high-pressure water jet turbine type pipeline cleaning nozzle includes a fixed seat.
  • the outer lower part of the fixed seat is threadedly connected to a shell, the lower part of the shell is provided with a spray head, the middle of the fixed seat is provided with a filter element, and the upper part of the filter element is provided with Pressure pad, the lower part of the filter element is provided with a filter hole, the inner lower part of the fixed seat is connected to the upper part of the rotating shaft, the lower end of the rotating shaft is threaded to connect the spray head, and the outer side of the spray head is provided with spray holes.
  • a rotating upper gap is arranged between the lower part of the rotating shaft and the lower part of the housing.
  • a lubricating ring is provided in the middle of the upper rotating gap and the lower part of the housing, and a drain is provided in the middle of the housing.
  • the middle of the rotating shaft is provided with a spiral groove, a water drain gap is provided between the middle of the rotating shaft and the shell, a rebound hole is provided at the lower part of the middle of the rotating shaft, and a rebound cavity is provided between the outside of the rebound hole and the shell .
  • a positioning gap is provided at the threaded connection between the fixing seat and the housing.
  • a jewel nozzle is arranged inside the injection port.
  • the upper part of the rotating shaft is provided with a rotating shaft through hole.
  • the drain gap is a cone shaped upwardly in the shape of a bell mouth.
  • the rotation direction of the spiral groove is consistent with the direction in which the jet of the jet hole rebounds.
  • the housing, the rotating shaft and the spray head are all made of high-hardness stainless steel alloy materials.
  • the upper end of the rotating shaft is provided with a side water inlet hole.
  • the invention is suitable for an ultra-high-pressure water jet turbine type pipeline cleaning nozzle.
  • a filter element is arranged at the water inlet, which can effectively filter the particulate impurities in the water, and reduce the wear of the fixed seat and the rotating upper gap under the force of the rotating shaft.
  • the spiral groove of the rotating shaft is used to drain water to form a water turbine to achieve the effect of balanced suspension and smooth rotation; a small amount of "necessary leakage” is generated in the lubrication ring and rebound cavity, while ensuring the normal operation of the device , The amount of leakage is small, and the "liquid bearing" and the water film formed between the housing and the rotating shaft are produced by the lubricating ring, which makes the operation of the device more smooth and achieves flexible operation, making the device even under high temperature and high pressure. It can maintain smooth operation and increase the service life of the device.
  • Fig. 1 is a schematic structural diagram of a first embodiment of an ultra-high pressure water jet turbine-type pipeline cleaning nozzle.
  • Fig. 2 is a schematic structural diagram of a second embodiment of an ultra-high-pressure water jet turbine-type pipeline cleaning nozzle.
  • Fig. 3 is a schematic structural diagram of Embodiment 3 of an ultra-high-pressure water jet turbine-type pipeline cleaning nozzle.
  • an ultra-high-pressure water jet turbine-type pipe cleaning nozzle including a fixing seat 16, the outer lower part of the fixing seat 16 is threadedly connected to the housing 19, and the threaded connection between the fixing seat 16 and the housing 19 is provided with a positioning gap 3, which is matched The gap is 0.005 ⁇ 0.02MM to ensure the concentricity of the two combined; the lower part of the housing 19 is provided with a spray head 21, the middle part of the fixed seat 16 is provided with a filter element 18, and the lower part of the filter element 18 is provided with a filter Hole 2, the aperture of filter hole 2 is 0.1 ⁇ 0.2MM.
  • the filter element 18 can effectively filter the particulate impurities in the water.
  • the upper part of the filter element 18 is provided with a pressure pad 17, which can fix the filter element 18 in the fixing seat 16, and the pressure pad 17 is provided with a water inlet 1 ,
  • the pressure pad 17 plays a transitional role with the pipe connected to the external pump; the inner lower part of the fixed seat 16 is connected to the upper part of the rotating shaft 20, the upper part of the rotating shaft 20 is the water inlet chamber 4, and the upper part of the rotating shaft 20 is provided with a rotating shaft Through hole 6, the lower end of the rotating shaft 20 is threadedly connected to the jet head 21, the jet head 21 is provided with a jet hole 15, and the jet port 15 is provided with a jewel nozzle.
  • the jet port 15 can directly drill several micro-holes at different angles, or Install the jewel nozzle and fix it to form jet holes.
  • the number of jet holes 15 is 4, 5 or 7, and the aperture and jet angle are also different.
  • Different jet heads 21 can be selected according to different working conditions.
  • the high-pressure water is from the fixed seat. 16 enters the filter core 18, flows through the through hole 6 of the rotating shaft, and then reaches the spray hole 15 at the end.
  • the housing 19, the rotating shaft 20 and the spray head 21 are all made of high-hardness stainless steel alloy materials, which are resistant to wear and high pressure.
  • a rotating upper gap 8 is provided between the upper part of the rotating shaft 20 and the fixed seat 16, a rotating lower gap 14 is provided between the lower part of the rotating shaft 20 and the lower part of the housing 19, and the middle of the rotating upper gap 8 and the rotating lower gap 14 are both
  • a lubricating ring 7 is provided, and the lubricating ring 7 is filled with the provided "necessary drain water” to form a "liquid bearing” to provide flexible support at the upper rotation gap 8 and the rotation lower gap 14 between the rotating shaft 20 and the fixed seat 16 and the housing 19.
  • a water drain 9 is provided in the middle of the housing 19, and a spiral groove 10 is provided in the middle of the rotating shaft 20.
  • the rotation direction of the spiral groove 10 is consistent with the direction in which the jet of the jet hole 15 rebounds.
  • the water is discharged from the spiral groove 10 to the drain 9 to form a water turbine, which achieves the effect of balanced suspension and smooth rotation, avoids the atomization of the jet, and improves the striking force of the rotating jet.
  • the rotation torque generated by the offset injection hole 15 and the water turbine action of the spiral groove 10 drive the injection head 21 to rotate.
  • the power of its rotation comes from the water jet itself, and no additional device is needed to control the rotation.
  • the threshold of this rotational torque is found to be 11N ⁇ m.
  • This rotational torque plus the water flow through the water turbine formed by the spiral groove 10 drives the entire rotating shaft 20 and The spray head 21 rotates and sprays annular high-pressure water.
  • a water drain gap 11 is provided between the middle of the rotating shaft 20 and the housing 19.
  • the water drain gap 11 is a cone shaped like a bell mouth.
  • the lower part of the rotating shaft 20 is provided with a rebound hole 12, and there are 3 to 4 rebound holes 12 with a diameter of 0.3 to 0.6.
  • a rebound cavity 13 is provided between the outside of the rebound hole 12 and the housing 19, and a rebound cavity 13 is formed here.
  • the backward rebound area exceeds the area pushed forward by the high-pressure water on the rotating shaft 20 and the jet head 21.
  • the reverse force of the water in the rebound cavity 13 overcomes the rotating shaft
  • the forward thrust of the water at the through hole 6 on the rotating shaft 20 and the spray head 21 causes the rotating shaft 20 and the spray head 21 to rebound.
  • the rebound hole 12 has a small diameter, so there is less "necessary leakage" and a high flow rate utilization rate of the pump.
  • the other content of this embodiment is the same as that of the first embodiment, except that the upper end of the rotating shaft 20 is provided with a side water inlet 5.
  • the water inlet 1 is arranged in 3 groups of rotating arrays, and the rotation direction is consistent with the spiral groove 10, forming a centripetal force at the water inlet, making the rotation smoother.
  • the other content of this embodiment is the same as that of the first embodiment.
  • the difference is that for a slightly larger pipe (more than 1 inch), the overall size of the present invention will be enlarged and lengthened.
  • the length of the rotating shaft 20 will also be lengthened, because the longer it is for the thin shaft, the more difficult it is to ensure its coaxiality, so the mating convex end is made on the fixing seat 16, and the upper part of the rotating shaft 20 is made into a hole to match the fixing seat 16.
  • the device is connected to the water source.
  • the high-pressure water is connected to the water inlet 1 of the pressure pad 17 from the front end of the fixed seat 16 and the water inlet 1 of the pressure pad 17, and the solids in the water are removed through the filter hole 2 of the filter element 18.
  • the particulate impurities are filtered out, and the high-pressure water enters the water inlet chamber 4 and flows from the through hole 6 of the rotating shaft to the spray head 21 at the end, and finally ejects from the spray hole 15.
  • the invention is suitable for an ultra-high-pressure water jet turbine type pipeline cleaning nozzle.
  • a filter element is arranged at the water inlet, which can effectively filter the particulate impurities in the water, and reduce the wear of the fixed seat and the rotating upper gap under the force of the rotating shaft.
  • the spiral groove of the rotating shaft is used to drain water to form a water turbine to achieve the balance of suspension and smooth rotation; a small amount of "necessary leakage" is generated in the lubricating ring 7 and the rebound cavity 13, and the water is drained through the spiral groove to form water
  • the turbine achieves the function of balanced suspension and smooth rotation.
  • the membrane makes the operation of the device more smooth and realizes flexible operation, so that the device can maintain smooth operation under high temperature and high pressure, so that the service life of the device is increased.

Abstract

一种超高压水射流涡轮式管道清洗喷头，包括固定座（16），固定座（16）的外侧下部螺纹连接外壳（19），外壳（19）的下部设有喷射头（21），所述固定座（16）的中部设有过滤芯（18），所述固定座（16）的内侧下部连接旋转轴（20）的上部，旋转轴（20）的下端螺纹连接喷射头（21），喷射头（21）外侧设喷射孔（15），所述旋转轴（20）上部与固定座（16）之间设有旋转上间隙（8），旋转轴（20）下部与外壳（19）下部之间设有旋转下间隙（14），所述旋转上间隙（8）和旋转下间隙（14）的中部均设有润滑环（7）。该超高压水射流涡轮式管道清洗喷头，在润滑环（7）和反弹腔（13）中产生少量的"必要泄漏"，经螺旋槽（10）泄水，形成水涡轮，达到平衡悬浮和平稳旋转的作用，实现柔性运行。

Description

一种超高压水射流涡轮式管道清洗喷头 技术领域
本发明涉及工业技术领域，具体是一种超高压水射流涡轮式管道清洗喷头。
背景技术
随着现代化工业的快速发展，冷却水的使用量越来越大，冷却水在热交换过程中，原来溶于水中的钙和镁在温度的作用下析出二氧化碳生成微溶于水的碳酸钙和碳酸镁，当这些结晶物不断地沉积于换热器管束内部，便形成了坚硬的水垢，影响冷却效率。需要周期性清理这些污垢才能使设备正常运作。
传统的化学清洗，会排放大量酸液，酸液会对设备造成腐蚀形成漏洞，此外，清洗废液有毒，需要大量资金进行废水处理，对环境造成很大污染。高压水射流清洗属于物理清洗，在工业发达国家高压水射流清洗已经成为主流清洗技术。在德国、日本、英国、法国等国，其市场份额已达80％以上，在美国甚至占到清洗业的90％。而在我国清洗行业里，70％为化学清洗，高压水射流只占20％左右。
高压水射流清洗以环保、高效的理念逐渐取代传统的化学清洗。但管道的附着物坚硬，附着力强，要清除该类结垢，不但要求有足够的水压(700～2800bar)和流量(10～200L)，而且不能因为喷头的旋转速度过快而形成射流雾化导致打击力降低。在高压力、高流速带来的高温和旋转磨损等因素影响下，这就对喷头的清洗效率和使用寿命提出了很大的难题。
发明概述
技术问题
问题的解决方案
技术解决方案
本发明提供一种超高压水射流涡轮式管道清洗喷头，解决了上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种超高压水射流涡轮式管道清洗喷头，包括固定座，固定座的外侧下部螺纹连接外壳，外壳的下部设有喷射头，所述固定座的中部设有过滤芯，过滤芯的上部设有压垫，过滤芯的下部设有过滤孔，所述固定座的内侧下部连接旋转轴的上部，旋转轴的下端螺纹连接喷射头，喷射头外侧设喷射孔，所述旋转轴上部与固定座之间设有旋转上间隙，旋转轴下部与外壳下部之间设有旋转下间隙，所述旋转上间隙和旋转下间隙的中部均设有润滑环，所述外壳的中部设有设有泄水口，所述旋转轴的中部设有螺旋槽，旋转轴的中部与外壳之间设有泄水间隙，所述旋转轴中部靠下的位置设有反弹孔，反弹孔外部与外壳之间设有反弹腔。
作为本发明的一种优选技术方案，所述固定座与外壳的螺纹连接处设有定位间隙。
作为本发明的一种优选技术方案，所述喷射口内部设有宝石喷嘴。
作为本发明的一种优选技术方案，所述旋转轴的上部设有旋转轴通孔。
作为本发明的一种优选技术方案，所述泄水间隙为向上呈喇叭口状的锥形。
作为本发明的一种优选技术方案，所述螺旋槽的旋转方向与喷射孔射流反弹的方向一致。
作为本发明的一种优选技术方案，所述外壳、旋转轴和喷射头均采用高硬度的不锈钢合金材料。
作为本发明的一种优选技术方案，所述旋转轴的上端设有侧进水孔。
发明的有益效果
有益效果
本发明具有以下有益之处：
本发明适用于一种超高压水射流涡轮式管道清洗喷头，在进水孔处设置有过滤芯，可将水中的颗粒杂质有效过滤，对固定座与旋转轴受力的旋转上间隙的磨损降到最低；采用旋转轴的螺旋槽泄水，形成水涡轮，达到平衡悬浮和平稳旋转的作用；在润滑环和反弹腔中产生少量的“必要泄漏”，在保证本装置的正常运行的情况下，泄露量较少，并且通过润滑环产生“液体轴承”以及在外壳和旋转轴之间形成的水膜，使得本装置的运行更加的顺滑，实现柔性运行，使得本装置 在高温高压下亦能保持顺畅运转，使得本装置的使用寿命提高。
对附图的简要说明
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一种超高压水射流涡轮式管道清洗喷头实施例一的结构示意图。
图2为一种超高压水射流涡轮式管道清洗喷头实施例二的结构示意图。
图3为一种超高压水射流涡轮式管道清洗喷头实施例三的结构示意图。
图中：1、进水孔；2、过滤孔；3、定位间隙；4、进水腔；5、侧进水孔；6、旋转轴通孔；7、润滑环；8、旋转上间隙；9、泄水口；10、螺旋槽；11、泄水间隙；12、反弹孔；13、反弹腔；14、旋转下间隙；15、喷射孔；16、固定座；17、压垫；18、过滤芯；19、外壳；20、旋转轴；21、喷射头。
发明实施例
本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
请参阅图1，一种超高压水射流涡轮式管道清洗喷头，包括固定座16，固定座16的外侧下部螺纹连接外壳19，固定座16与外壳19的螺纹连接处设有定位间隙3，配合间隙为0.005～0.02MM，以此来保证两者组合后的同心度；外壳19的下部设有喷射头21，所述固定座16的中部设有过滤芯18，过滤芯18的下部设有过滤孔2，过滤孔2的孔径在0.1～0.2MM，过滤芯18可将水中的颗粒杂质有效过滤当被杂物堵塞时可以拆下清洗或更换，将水中颗粒杂质对固定座16与旋转轴20受力的旋转上间隙8的磨损降到最低；过滤芯18的上部设有压垫17，压垫17可以将过 滤芯18固定在固定座16内部，压垫17的内部设有进水孔1，压垫17跟外部接入泵的管起过渡作用；所述固定座16的内侧下部连接旋转轴20的上部，旋转轴20的上方为进水腔4，旋转轴20的上部设有旋转轴通孔6，旋转轴20的下端螺纹连接喷射头21，喷射头21外侧设喷射孔15，喷射口15内部设有宝石喷嘴，喷射口15可按不同角度直接钻出若干个微孔，也可安装宝石喷嘴固定在上面形成喷射孔，喷射孔15的数量有4或5或7个，孔径和喷射角度也有区别，可按不同的使用工况选配不同的喷射头21，高压水从固定座16进入过滤芯18流经旋转轴通孔6到达末端的喷射孔15射出，所述外壳19、旋转轴20和喷射头21均采用高硬度的不锈钢合金材料，具有耐磨损耐高压特性。
所述旋转轴20上部与固定座16之间设有旋转上间隙8，旋转轴20下部与外壳19下部之间设有旋转下间隙14，所述旋转上间隙8和旋转下间隙14的中部均设有润滑环7，由设置的“必要泄水”充满润滑环7，形成“液体轴承”在旋转轴20与固定座16和外壳19的旋转上间隙8和旋转下间隙14处提供柔性支撑。
所述外壳19的中部设有设有泄水口9，所述旋转轴20的中部设有螺旋槽10，螺旋槽10的旋转方向与喷射孔15射流反弹的方向一致，旋转轴20反弹起来后，水由螺旋槽10泄出到泄水口9，形成水涡轮，达到平衡悬浮和平稳旋转的作用，避免射流的雾化从而提高了旋转射流的打击力。采用偏置的喷射孔15产生的旋转扭矩和螺旋槽10的水涡轮作用带动喷射头21旋转。其旋转的动力来自水射流本身，不需要添加额外装置来控制旋转。当高压水射出时由于向心力而形成旋转扭矩，经试验得出这种旋转扭矩的门限值是11N·m，这个旋转扭矩加上水流经过和螺旋槽10形成的水涡轮带动整根旋转轴20和喷射头21旋转并喷射出环形高压水。
旋转轴20的中部与外壳19之间设有泄水间隙11，泄水间隙11为向上呈喇叭口状的锥形，当旋转轴20克服水流向前的冲力而往后反弹到时，泄水间隙11的截面积的会逐渐增大，反弹腔13水的反弹力度因为水流的泄压而与向前的力趋于平衡，此时旋转轴20呈轴向无接触的悬浮状态。
所述旋转轴20中部靠下的位置设有反弹孔12，有3～4个直径为0.3～0.6的反弹孔12，反弹孔12外部与外壳19之间设有反弹腔13，在此形成的向后反弹面积超过了 高压水对旋转轴20和喷射头21向前推的的面积，根据压强公式：压力＝压强*受力面积F＝PS，水在反弹腔13逆向作用力克服了旋转轴通孔6处水对旋转轴20和喷射头21向前的推力，使旋转轴20和喷射头21反弹起，反弹孔12直径小，“必要泄露”就少，对泵的流量利用率高。
实施例二
请参阅图2，本实施例的其它内容与实施例一相同，不同之处在于：所述旋转轴20的上端设有侧进水孔5。进水孔1呈3组旋转阵列排布，且旋转方向与螺旋槽10一致，在进水处形成向心力，让旋转更顺畅。
实施例三
请参阅图3，本实施例的其它内容与实施例一相同，不同之处在于：对于稍大些(1英时以上)的管道，本发明的整体尺寸会加大加长。旋转轴20的长度也会加长，因为对于细轴来说越长越难保证其同轴度，所以把配合的凸端做到固定座16上，旋转轴20上部做成孔来配合固定座16形成旋转上间隙8。把凸端做到固定座16上更易于加工得更长，让旋转上间隙8的有效长度也加长，对于大尺寸的喷头而言这样的旋转导向性更好。
本发明在实施过程中，将本装置与水源连接，此时高压水从固定座16前端连接泵的管道与压垫17的进水孔1连接，通过过滤芯18的过滤孔2将水中的固体颗粒杂质过滤掉，高压水进入进水腔4后从旋转轴通孔6流至末端的喷射头21，最后从喷射孔15射出。本发明适用于一种超高压水射流涡轮式管道清洗喷头，在进水孔处设置有过滤芯，可将水中的颗粒杂质有效过滤，对固定座与旋转轴受力的旋转上间隙的磨损降到最低；采用旋转轴的螺旋槽泄水，形成水涡轮，达到平衡悬浮和平稳旋转的作用；在润滑环7和反弹腔13中产生少量的“必要泄漏”，经螺旋槽泄水，形成水涡轮，达到平衡悬浮和平稳旋转的作用，在保证本装置的正常运行的情况下，泄露量较少，并且通过润滑环7产生“液体轴承”以及在外壳19和旋转轴20之间形成的水膜，使得本装置的运行更加的顺滑，实现柔性运行，使得本装置在高温高压下亦能保持顺畅运转，使得本装置的使用寿命提高。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且 在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。

Claims (8)

  1. 一种超高压水射流涡轮式管道清洗喷头，包括固定座(16)，固定座(16)的外侧下部螺纹连接外壳(19)，外壳(19)的下部设有喷射头(21)，其特征在于，所述固定座(16)的中部设有过滤芯(18)，过滤芯(18)的上部设有压垫(17)，过滤芯(18)的下部设有过滤孔(2)，所述固定座(16)的内侧下部连接旋转轴(20)的上部，旋转轴(20)的下端螺纹连接喷射头(21)，喷射头(21)外侧设喷射孔(15)，所述旋转轴(20)上部与固定座(16)之间设有旋转上间隙(8)，旋转轴(20)下部与外壳(19)下部之间设有旋转下间隙(14)，所述旋转上间隙(8)和旋转下间隙(14)的中部均设有润滑环(7)，所述外壳(19)的中部设有设有泄水口(9)，所述旋转轴(20)的中部设有螺旋槽(10)，旋转轴(20)的中部与外壳(19)之间设有泄水间隙(11)，所述旋转轴(20)中部靠下的位置设有反弹孔(12)，反弹孔(12)外部与外壳(19)之间设有反弹腔(13)。
  2. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述固定座(16)与外壳(19)的螺纹连接处设有定位间隙(3)。
  3. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述喷射口(15)内部设有宝石喷嘴。
  4. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述旋转轴(20)的上部设有旋转轴通孔(6)。
  5. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述泄水间隙(11)为向上呈喇叭口状的锥形。
  6. 根据权利要求1或3所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述螺旋槽(10)的旋转方向与喷射孔(15)射流反弹的方向一致。
  7. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其 特征在于，所述外壳(19)、旋转轴(20)和喷射头(21)均采用高硬度的不锈钢合金材料。
  8. 根据权利要求1所述的一种超高压水射流涡轮式管道清洗喷头，其特征在于，所述旋转轴(20)的上端设有侧进水孔(5)。
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