CN113083530B - Cavitation nozzle with continuously adjustable central body position - Google Patents

Cavitation nozzle with continuously adjustable central body position Download PDF

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Publication number
CN113083530B
CN113083530B CN202110225932.6A CN202110225932A CN113083530B CN 113083530 B CN113083530 B CN 113083530B CN 202110225932 A CN202110225932 A CN 202110225932A CN 113083530 B CN113083530 B CN 113083530B
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nozzle
central body
nozzle body
positioning
cavitation
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CN113083530A (en
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李登
罗文悦
巫世晶
熊杰
姚致远
袁淼
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Wuhan University WHU
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

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  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a cavitation nozzle with a continuously adjustable central body position, comprising: the nozzle comprises a nozzle body, two positioning rings and a central body, wherein the positioning rings are arranged in the nozzle body at intervals along the front and the back of the axial lead direction of the nozzle body, the central body is arranged between the positioning rings, and the central body can reciprocate along the front and the back of the axial lead direction of the nozzle body. The cavitation nozzle provided by the invention continuously adjusts the position of the central body in the nozzle through the transmission action of the gear and the rack, so as to accurately control the distance from the front end of the central body to the outlet of the nozzle and finally improve the cavitation effect and the operation efficiency.

Description

一种中心体位置可连续调节的空化喷嘴A cavitation nozzle with continuously adjustable central body position

技术领域technical field

本发明涉及水射流技术领域，尤其涉及一种中心体位置可连续调节的空化喷嘴。The invention relates to the technical field of water jets, in particular to a cavitation nozzle whose central body position can be continuously adjusted.

背景技术Background technique

空化水射流技术是近些年发展起来的一项高效、清洁、安全的新型水射流技术，其通过人为的方式在射流中诱发大量空泡，再利用气泡溃灭时产生的瞬间高温高压以及压缩波和微射流来增强射流的打击力，从而提高射流的作用效率。空化水射流技术已在船舶清洗、材料切割、石油钻井、有毒物质降解等领域得到了较为广泛的应用。Cavitation water jet technology is an efficient, clean and safe new water jet technology developed in recent years. It induces a large number of cavitations in the jet by artificial means, and then uses the instantaneous high temperature and high pressure generated when the bubbles collapse. Compression waves and micro-jets are used to enhance the blowing force of the jet, thereby improving the efficiency of the jet. Cavitation water jet technology has been widely used in ship cleaning, material cutting, oil drilling, toxic substance degradation and other fields.

研究表明，空化喷嘴中中心体前端与喷嘴出口之间的距离对于空化射流的效果有很大影响，且不同压力情况下最优距离均不同，但现有装置不能调节喷嘴内中心体的位置，也不能精确控制中心体前端与喷嘴出口的相对距离。The research shows that the distance between the front end of the center body in the cavitation nozzle and the nozzle outlet has a great influence on the effect of the cavitation jet, and the optimal distance is different under different pressure conditions, but the existing device cannot adjust the center body in the nozzle. position, and the relative distance between the front end of the central body and the nozzle outlet cannot be precisely controlled.

发明内容SUMMARY OF THE INVENTION

针对上述问题，现提供一种中心体位置可连续调节的空化喷嘴，旨在有效解决现有技术中存在的如上问题。In view of the above problems, a cavitation nozzle with continuously adjustable central body position is provided, which aims to effectively solve the above problems existing in the prior art.

具体技术方案如下：The specific technical solutions are as follows:

一种中心体位置可连续调节的空化喷嘴，具有这样的特征，包括：喷嘴体、两个定位环及中心体，定位环沿喷嘴体的轴心线方向前、后间隔设置于喷嘴体内，中心体安装于定位环间，且中心体可沿喷嘴体的轴心线方向前、后往复移动。A cavitation nozzle whose central body position can be continuously adjusted has the following features, comprising: a nozzle body, two positioning rings and a central body, the positioning rings are arranged in the nozzle body at intervals along the axis line direction of the nozzle body in front and back, The center body is installed between the positioning rings, and the center body can reciprocate forward and backward along the axis direction of the nozzle body.

上述的空化喷嘴，还具有这样的特征，定位环包括支撑套筒及沿支撑套筒的环向方向间隔设置于支撑套筒外的支撑筋，支撑筋连接于喷嘴体上，支撑套筒上开设有限位槽，中心体上设有两个分别与限位槽一一配合的定位凸台，定位凸台嵌设于限位槽内。The above-mentioned cavitation nozzle also has the feature that the positioning ring includes a support sleeve and support ribs arranged outside the support sleeve at intervals along the circumferential direction of the support sleeve, the support ribs are connected to the nozzle body, and the support sleeve is A limit slot is set, the center body is provided with two positioning bosses which are respectively matched with the limit slot one by one, and the positioning boss is embedded in the limit slot.

上述的空化喷嘴，还具有这样的特征，定位凸台上还设有防止中心体过度位移的限位凸台。The above-mentioned cavitation nozzle also has the feature that the positioning boss is further provided with a limiting boss for preventing excessive displacement of the central body.

上述的空化喷嘴，还具有这样的特征，中心体上相对定位凸台间设有传动齿条，传动齿条与位于喷嘴体内的调节齿轮啮合传动，调节齿轮连接于调节转轴上，调节转轴的一端穿过喷嘴体并延伸至喷嘴体外部，调节转轴转动密封于喷嘴体上。The above-mentioned cavitation nozzle also has the feature that a transmission rack is arranged between the relative positioning bosses on the central body, and the transmission rack meshes with the adjustment gear located in the nozzle body for transmission, and the adjustment gear is connected to the adjustment shaft. One end passes through the nozzle body and extends to the outside of the nozzle body, and the adjusting shaft is rotatably sealed on the nozzle body.

上述的空化喷嘴，还具有这样的特征，喷嘴体的出料口呈锥直状，且中心体相对靠近喷嘴体的出料口的一端端部呈锥状。The above-mentioned cavitation nozzle is also characterized in that the discharge port of the nozzle body is tapered and straight, and one end of the central body relatively close to the discharge port of the nozzle body is tapered.

上述方案的有益效果是：The beneficial effects of the above scheme are:

本发明提供的空化喷嘴中通过齿轮-齿条传动作用连续调节中心体在喷嘴中的位置，以精确控制中心体前端到喷嘴出口的距离，并最终提高空化效果和作业效率。In the cavitation nozzle provided by the present invention, the position of the center body in the nozzle is continuously adjusted through the gear-rack transmission, so as to precisely control the distance from the front end of the center body to the nozzle outlet, and finally improve the cavitation effect and operation efficiency.

附图说明Description of drawings

图1为本发明的实施例中提供的空化喷嘴的剖视结构示意图；1 is a schematic cross-sectional structural diagram of a cavitation nozzle provided in an embodiment of the present invention;

图2为本发明的实施例中提供的空化喷嘴的侧视结构示意图。FIG. 2 is a schematic side view of the structure of a cavitation nozzle provided in an embodiment of the present invention.

附图中：1、喷嘴体；2、中心体；3、支撑套筒；4、支撑筋；5、定位凸台；6、限位凸台；7、传动齿条；8、调节齿轮；9、调节转轴。In the drawings: 1. Nozzle body; 2. Center body; 3. Supporting sleeve; 4. Supporting ribs; 5. Positioning boss; 6. Limiting boss; 7. Transmission rack; 8. Adjusting gear; 9 , Adjust the shaft.

具体实施方式Detailed ways

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作出创造性劳动的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。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

下面结合附图和具体实施例对本发明作进一步说明，但不作为本发明的限定。The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

如图1和图2所示，本发明提供的空化喷嘴包括：喷嘴体1、两个定位环及中心体2，定位环沿喷嘴体1的轴心线方向前、后间隔设置于喷嘴体1内，中心体2安装于定位环间，且中心体2可沿喷嘴体1的轴心线方向前、后往复移动。As shown in FIG. 1 and FIG. 2 , the cavitation nozzle provided by the present invention includes: a nozzle body 1 , two positioning rings and a center body 2 , and the positioning rings are arranged on the nozzle body at intervals along the axis direction of the nozzle body 1 . 1, the center body 2 is installed between the positioning rings, and the center body 2 can move forward and backward along the axis of the nozzle body 1.

本发明提供的空化喷嘴中通过连续调节中心体2在喷嘴体1中的位置，以精确控制中心体2前端到喷嘴体1的喷嘴出口的距离，并最终提高空化效果和作业效率。In the cavitation nozzle provided by the present invention, the position of the center body 2 in the nozzle body 1 is continuously adjusted to precisely control the distance from the front end of the center body 2 to the nozzle outlet of the nozzle body 1, and ultimately improve the cavitation effect and operation efficiency.

具体的，本发明中定位环包括支撑套筒3及沿支撑套筒3的环向方向间隔设置于支撑套筒3外的支撑筋4(支撑筋4连接于喷嘴体1上)，本发明中支撑套筒3上开设有限位槽，中心体2上设有两个分别与限位槽一一配合的定位凸台5，本发明中定位凸台5嵌设于限位槽内，这样中心体2即可沿支撑套筒3的轴心线方向前、后往复移动，以调节中心体2前端到喷嘴体1的喷嘴出口的距离。本发明中为防止中心体2过度位移损坏喷嘴体1，因而在定位凸台5上设置有限位凸台6，以通过限位凸台6限定中心体2前、后位移限度。Specifically, in the present invention, the positioning ring includes a support sleeve 3 and a support rib 4 (the support rib 4 is connected to the nozzle body 1 ) that is arranged at intervals along the circumferential direction of the support sleeve 3 outside the support sleeve 3 . The support sleeve 3 is provided with a limiting groove, and the central body 2 is provided with two positioning bosses 5 which are respectively matched with the limiting grooves one by one. 2 can be reciprocated forward and backward along the axis direction of the support sleeve 3 to adjust the distance from the front end of the center body 2 to the nozzle outlet of the nozzle body 1 . In the present invention, in order to prevent the nozzle body 1 from being damaged by excessive displacement of the central body 2 , a limiting boss 6 is provided on the positioning boss 5 to limit the front and rear displacement limits of the central body 2 by the limiting boss 6 .

具体的，本发明中中心体2上相对定位凸台5间设有传动齿条7，且传动齿条7与位于喷嘴体1内的调节齿轮8啮合传动，本发明中调节齿轮8连接于调节转轴9上，调节转轴9的一端穿过喷嘴体1并延伸至喷嘴体1外部，本发明中调节转轴9还转动密封于喷嘴体1上，这样即可通过转动调节转轴9调节中心体2前端到喷嘴体1的喷嘴出口的距离。Specifically, in the present invention, a transmission rack 7 is provided between the relative positioning bosses 5 on the central body 2, and the transmission rack 7 meshes with the adjusting gear 8 located in the nozzle body 1 for transmission. In the present invention, the adjusting gear 8 is connected to the adjusting gear 8. On the rotating shaft 9, one end of the adjusting rotating shaft 9 passes through the nozzle body 1 and extends to the outside of the nozzle body 1. In the present invention, the adjusting rotating shaft 9 is also rotatably sealed on the nozzle body 1, so that the front end of the central body 2 can be adjusted by rotating the adjusting rotating shaft 9. Distance to nozzle outlet of nozzle body 1.

以上仅为本发明较佳的实施例，并非因此限制本发明的实施方式及保护范围，对于本领域技术人员而言，应当能够意识到凡运用本发明说明书及图示内容所作出的等同替换和显而易见的变化所得到的方案，均应当包含在本发明的保护范围内。The above are only preferred embodiments of the present invention, and are not intended to limit the embodiments and protection scope of the present invention. For those skilled in the art, they should be aware of the equivalent replacement and Solutions obtained by obvious changes shall all be included in the protection scope of the present invention.

Claims (1)

1. A cavitation nozzle having a continuously adjustable center body position, comprising: the nozzle comprises a nozzle body (1), two positioning rings and a central body (2), wherein the positioning rings are arranged in the nozzle body (1) at intervals along the front and back of the axial lead direction of the nozzle body (1), the central body (2) is arranged between the positioning rings, a transmission rack (7) is arranged on the central body (2), the transmission rack (7) is in meshing transmission with an adjusting gear (8) positioned in the nozzle body (1), the adjusting gear (8) is connected onto an adjusting rotating shaft (9), one end of the adjusting rotating shaft (9) penetrates through the nozzle body (1) and extends to the outside of the nozzle body (1), and the adjusting rotating shaft (9) is rotationally sealed on the nozzle body (1); the positioning ring comprises a supporting sleeve (3) and supporting ribs (4) arranged outside the supporting sleeve (3) at intervals along the circumferential direction of the supporting sleeve (3), the supporting ribs (4) are connected to the nozzle body (1), a limiting groove is formed in the supporting sleeve (3), two positioning bosses (5) which are respectively matched with the limiting groove in a one-to-one mode are arranged on the central body (2), and the positioning bosses (5) are embedded in the limiting groove; the positioning boss (5) is also provided with a limiting boss (6) for preventing the central body (2) from excessively displacing; the nozzle outlet of the nozzle body (1) is conical and straight, and the front end of the central body (2) which is relatively close to the nozzle outlet of the nozzle body (1) is conical.
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