CN216077122U - Ultrasonic post-mixing spray head - Google Patents
Ultrasonic post-mixing spray head Download PDFInfo
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- CN216077122U CN216077122U CN202122724782.1U CN202122724782U CN216077122U CN 216077122 U CN216077122 U CN 216077122U CN 202122724782 U CN202122724782 U CN 202122724782U CN 216077122 U CN216077122 U CN 216077122U
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Abstract
The utility model provides an ultrasonic post-mixing spray head, which relates to the field of tunneling equipment and comprises a spray head body, an abrasive pressure head and an ultrasonic device, wherein the spray head body is provided with a first flow guide cavity which is axially communicated, the abrasive pressure head is tubular and is provided with an abrasive channel which is axially communicated, the abrasive pressure head is arranged at one end of the first flow guide cavity in a penetrating way, the abrasive pressure head is provided with a first connecting section and a second connecting section which are arranged along the axial direction of the abrasive pressure head, the outer diameter of the first connecting section is larger than that of the second connecting section to form a first limiting step, the first connecting section is fixedly connected with the inner wall of the first flow guide cavity in a sealing way, an annular interval is formed between the outer wall of the second connecting section and the inner wall of the first flow guide cavity, the ultrasonic device is arranged in the annular interval, and the ultrasonic device is detachably and fixedly connected on the first limiting step. The ultrasonic post-mixing spray head provided by the utility model can form ultrasonic jet flow, and the rock breaking efficiency is improved.
Description
Technical Field
The utility model relates to the field of tunneling equipment, in particular to an ultrasonic post-mixing spray head.
Background
The Tunnel Boring Machine (TBM) can realize parallel and continuous operation of construction procedures such as boring, supporting, deslagging and the like, is factory assembly line tunnel construction equipment integrating systems such as machine, electricity, liquid, light, gas and the like, and has the advantages of high boring speed, environmental friendliness, high comprehensive benefit and the like. The existing tunnel boring machine generally adopts a technical scheme of combining high-pressure water jet and mechanical force to break rock.
The high-pressure water jet is a high-speed water flow which takes water as a medium, obtains huge energy through the increase of high-pressure generating equipment, and is sprayed out through a nozzle with a certain shape and concentrated in energy. Meanwhile, in order to increase the rock breaking capacity of the high-pressure water jet, the abrasive needs to be added into the original pure water jet to form abrasive jet so as to improve the rock breaking efficiency.
However, for hard rock, the impact speed of jet flow sprayed by the existing high-pressure water jet nozzle is low, the rock breaking efficiency is low, and the controllable frequency is less, so that the tunneling efficiency of tunneling construction is influenced.
In view of the above, the present inventors have designed an ultrasonic post-mixing nozzle through repeated experiments according to production design experiences in this field and related fields for many years, in order to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ultrasonic post-mixing spray head which can form ultrasonic jet flow and improve rock breaking efficiency.
In order to achieve the above object, the present invention provides an ultrasonic post-mixing nozzle, wherein the ultrasonic post-mixing nozzle comprises a nozzle body, an abrasive head and an ultrasonic device, the spray head body is provided with a first flow guide cavity which is axially communicated, the abrasive pressure head is tubular and is provided with an abrasive channel which is axially communicated, the abrasive pressure head is arranged at one end of the first diversion cavity in a penetrating way and is provided with a first connecting section and a second connecting section which are arranged along the axial direction of the abrasive pressure head, the outer diameter of the first connecting section is larger than that of the second connecting section to form a first limiting step, the first connecting section is fixedly connected with the inner wall of the first flow guide cavity in a sealing way, an annular interval is formed between the outer wall of the second connecting section and the inner wall of the first flow guide cavity, the ultrasonic device is arranged in the annular interval, and the ultrasonic device is detachably and fixedly connected to the first limiting step.
The ultrasonic back mixing nozzle comprises a first flow guide cavity, a second flow guide cavity, an ultrasonic device, a first connecting section and a second connecting section, wherein the first flow guide cavity is formed between the first flow guide cavity and the ultrasonic device, and the second flow guide cavity is formed between the second connecting section and the ultrasonic device.
The ultrasonic post-mixing nozzle comprises an installation plate, piezoelectric ceramics and an amplitude transformer, wherein the installation plate is an annular plate, the piezoelectric ceramics and the amplitude transformer are cylindrical, the amplitude transformer is provided with an installation section and an amplitude variation section which are arranged along the axial direction of the amplitude transformer, the outer diameter of the amplitude variation section is larger than that of the installation section to form an installation step, the installation plate and the piezoelectric ceramics are sequentially sleeved outside the installation section, the inner edge of the installation plate is detachably and fixedly connected with the installation section, two ends of the piezoelectric ceramics respectively abut against the installation step and the installation plate, the amplitude transformer is sleeved outside the second connection section, and the installation plate is detachably and fixedly connected with the first limit step.
The ultrasonic post-mixing nozzle is characterized in that a gap is formed between the inner wall of the amplitude transformer and the second connecting section, and gaps are respectively formed between the outer edge of the mounting plate, the outer wall of the piezoelectric ceramic and the outer wall of the amplitude transformer and the inner wall of the first flow guide cavity.
The ultrasonic back mixing nozzle comprises a first limiting step, a second limiting step, an installation section and a first connecting section, wherein the first limiting step is provided with an accommodating ring groove, the accommodating ring groove is formed along the outer wall of the second connecting section towards the first connecting section, one end of the installation section, which is back to the amplitude-variable section, is inserted into the accommodating ring groove 2, and a gap is formed between the end part of the installation section and the inner wall of the accommodating ring groove.
The ultrasonic back mixing nozzle comprises a variable amplitude section, a piezoelectric ceramic and a water wave reinforcing cover, wherein the variable amplitude section is arranged on the piezoelectric ceramic, and the end of the variable amplitude section, which faces away from the piezoelectric ceramic, is provided with the water wave reinforcing cover which protrudes along the radial direction of the variable amplitude section.
The ultrasonic back mixing nozzle is characterized in that a wire channel is formed in the first connecting section, one end of the wire channel is opened at the first limiting step, and the other end of the wire channel is opened at the end face of the abrasive pressure head, which faces away from one end of the ultrasonic device.
The ultrasonic back mixing nozzle is characterized in that a second flow guide cavity is further formed in the nozzle body, one end of the second flow guide cavity is opened on the inner wall surface of the first flow guide cavity and communicated with the annular space, and the other end of the second flow guide cavity is opened on the outer side wall of the nozzle body.
The ultrasonic back mixing nozzle comprises a first guide cavity, a second guide cavity, a first jet cavity and a second jet cavity, wherein the first guide cavity is communicated with the second guide cavity in the axial direction of the first guide cavity.
The ultrasonic back mixing nozzle comprises a first guide cavity, a second guide cavity, a third guide cavity, an abrasive pressure head and a nozzle, wherein the first guide cavity is provided with a first guide section, a second guide section and a third guide section which are sequentially arranged along the axial direction of the first guide cavity, the inner diameter of the second guide section is smaller than that of the first guide section and that of the third guide section respectively, the abrasive pressure head is detachably installed in the first guide section, and the nozzle is detachably installed in the third guide section.
The ultrasonic rear mixing nozzle comprises a first connecting section, a second connecting section, a plurality of jet flow grooves and a plurality of back mixing nozzles, wherein one end of the second connecting section, which is back to the first connecting section, is a jet flow end and extends into the second flow guide section, the side wall of the jet flow end is attached to the inner wall of the second flow guide section, the side wall of the jet flow end is provided with the plurality of jet flow grooves, the plurality of jet flow grooves are uniformly distributed along the circumferential direction of the jet flow end, and each jet flow groove is formed along the direction parallel to the axial direction of the second connecting section.
Compared with the prior art, the utility model has the following characteristics and advantages:
when the ultrasonic post-mixing spray head works, the ultrasonic device is arranged in the first flow guide cavity to apply ultrasonic vibration to the fluid in the first flow guide cavity, so that the fluid becomes ultrasonic jet flow, the formed impact force is larger, and the rock breaking efficiency is improved; meanwhile, when the ultrasonic post-mixing spray head provided by the utility model is assembled, the ultrasonic device can be arranged on the abrasive pressing head firstly, and then the assembled ultrasonic device and the abrasive pressing head are arranged on the spray head body, so that the ultrasonic post-mixing spray head is convenient to install and maintain.
According to the ultrasonic post-mixing spray head provided by the utility model, the ultrasonic device is arranged in the first flow guide cavity and can be directly immersed in the fluid in the first flow guide cavity, the energy conversion and heat dissipation are more convenient, and the influence of temperature on the service life of a product is reduced.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the utility model as a matter of case.
Fig. 1 is a schematic structural diagram of an ultrasonic post-mixing nozzle according to the present invention;
FIG. 2 is a schematic diagram of the abrasive head of the present invention;
FIG. 3 is a schematic view of the structure of the jet flow cell of the present invention;
FIG. 4 is a schematic view of the assembly of the abrasive head and ultrasonic device of the present invention;
fig. 5 is a schematic structural view of the sprinkler body of the present invention.
Description of reference numerals:
100. ultrasonically mixing the spray heads; 10. A spray head body;
11. a first flow guide cavity; 111. A first flow guide section;
112. a second flow guide section; 113. A third flow guide section;
12. a second diversion cavity;
20. an abrasive indenter; 21. A first connection section;
22. a second connection section; 23. A first limit step;
24. an accommodating ring groove; 25. A wire channel;
26. a jet end; 27. A jet chute;
28. an abrasive channel; 29. Sealing the pressure head;
30. an ultrasonic device; 31. Mounting a plate;
32. piezoelectric ceramics; 33. An amplitude transformer;
331. an installation section; 332. A variable amplitude section;
333. mounting a step; 34. A bolt;
35. a water wave reinforcing cover; 40. A nozzle;
41. a first ejection chamber; 50. Pressing a screw stopper;
51. a second ejection chamber.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the utility model in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
As shown in fig. 1 to 5, the ultrasonic post-mixing nozzle 100 of the present invention includes a nozzle body 10, an abrasive head 20 and an ultrasonic device 30, wherein the nozzle body 10 has a first guiding cavity 11 axially penetrating therethrough, the abrasive head 20 is tubular and has an abrasive channel 28 axially penetrating therethrough, the abrasive head 20 is disposed at one end of the first guiding cavity 11 in a penetrating manner, the abrasive head 20 has a first connecting section 21 and a second connecting section 22 axially disposed along the abrasive head 20, an outer diameter of the first connecting section 21 is larger than an outer diameter of the second connecting section 22 to form a first limiting step 23, the first connecting section 21 is fixedly connected to an inner wall of the first guiding cavity 11 in a sealing manner, an annular space is formed between an outer wall of the second connecting section 22 and the inner wall of the first guiding cavity 11, the ultrasonic device 30 is disposed in the annular space, and the ultrasonic device 30 is detachably and fixedly connected to the first limiting step 23.
When the ultrasonic post-mixing spray head 100 provided by the utility model works, the ultrasonic device 30 is arranged in the first flow guide cavity 11 to apply ultrasonic vibration to the fluid in the first flow guide cavity 11, so that the fluid becomes ultrasonic jet flow, the formed impact force is larger, and the rock breaking efficiency is improved; meanwhile, when the ultrasonic post-mixing spray head 100 provided by the utility model is assembled, the ultrasonic device 30 can be firstly installed on the abrasive head 20, and then the assembled ultrasonic device 30 and the abrasive head 20 are installed on the spray head body 10, so that the installation and the maintenance are convenient.
According to the ultrasonic post-mixing spray head 100 provided by the utility model, the ultrasonic device 30 is arranged in the first diversion cavity 11 and can be directly immersed in the fluid in the first diversion cavity 11, so that the energy conversion and heat dissipation are more convenient, and the influence of the temperature on the service life of a product is reduced.
In an alternative embodiment of the present invention, there are gaps between the ultrasonic device 30 and the inner wall of the first diversion cavity 11 and between the ultrasonic device 30 and the outer wall of the second connecting section 22. With the structure, the side wall of the ultrasonic device 30 is not in contact with the nozzle body 10 and the abrasive head 20, so that the ultrasonic device can act on the fluid in the first diversion cavity 11 as much as possible to provide a faster force to the fluid, and further form a high-speed water jet to break rock.
In an alternative embodiment of the present invention, the ultrasonic apparatus 30 includes a mounting plate 31, a piezoelectric ceramic 32 and an amplitude transformer 33, the mounting plate 31 is an annular plate, the piezoelectric ceramic 32 and the amplitude transformer 33 are both cylindrical, the amplitude transformer 33 has a mounting section 331 and an amplitude transformer section 332 disposed along an axial direction thereof, an outer diameter of the amplitude transformer section 332 is larger than an outer diameter of the mounting section 331 to form a mounting step 333, the mounting plate 31 and the piezoelectric ceramic 32 are sequentially sleeved outside the mounting section 331, an inner edge of the mounting plate 31 is detachably and fixedly connected to the mounting section 331, two ends of the piezoelectric ceramic 32 respectively abut against the mounting step 333 and the mounting plate 31, the amplitude transformer 33 is sleeved outside the second connecting section 22, and the mounting plate 31 is detachably and fixedly connected to the first limiting step 23. By adopting the structure, the mounting step 333 of the amplitude transformer 33 and the mounting plate 31 are directly connected to apply pretightening force to the piezoelectric ceramics 32, so that the processing is convenient and the mounting is easier.
In an alternative example of this embodiment, a gap is formed between the inner wall of the horn 33 and the second connecting section 22, and the outer edge of the mounting plate 31, the outer wall of the piezoelectric ceramic 32, and the outer wall of the horn 33 are respectively spaced from the inner wall of the first diversion cavity 11. The horn 33 does not contact the second connecting section 22 and does not vibrate the abrasive within the second connecting section 22.
In an alternative example of this embodiment, the mounting plate 31 is detachably fixed to the first limiting step 23 by a plurality of bolts 34, a plurality of screw holes are correspondingly formed on the first limiting step 23, and each bolt 34 penetrates through the mounting plate 31 and is screwed into the corresponding screw hole.
In an optional example of this embodiment, one end of the amplitude-varying section 332, which faces away from the piezoelectric ceramic 32, is provided with a water wave enhancement cover 35 protruding in the radial direction of the amplitude-varying section 332, the matching range of the water wave enhancement cover 35 and the fluid in the first diversion cavity 11 is wider, the amplitude-varying rod 33 vibrates rapidly to drive the water wave enhancement cover 35 to flap the fluid, the fluid speed is accelerated, and the impact force of the formed ultrasonic jet is larger.
In an optional example of this embodiment, the first limiting step 23 is provided with an accommodating ring groove 24, the accommodating ring groove 24 is provided along the outer wall of the second connecting section 22 toward the first connecting section 21, one end of the mounting section 331, which is opposite to the amplitude-variable section 332, is inserted into the accommodating ring groove 24, and a gap is provided between the end of the mounting section 331 and the inner wall of the accommodating ring groove 24.
In an alternative example, the inner edge of the mounting plate 31 is formed with an internal thread, the mounting section 331 is correspondingly formed with an external thread, and the mounting section 331 is detachably connected to the mounting plate 31 through the thread.
In an alternative example of this embodiment, the first connecting section 21 has a wire passage 25 formed therein, one end of the wire passage 25 is open to the first limiting step 23, and the other end of the wire passage 25 is open to an end surface of the abrasive indenter 20 facing away from the ultrasonic device 30. Wires connected to the piezoelectric ceramics 32 are passed out of the end face (top face) of the abrasive indenter 20 through the wire passage 25 to be connected to an external power source.
In an alternative example, a sealing head 29 for an annular gap between the electric wire and an inner wall surface of the electric wire passage 25 is provided in the electric wire passage 25, thereby preventing the fluid in the first guide chamber 11 from flowing out of the electric wire passage 25.
In an optional embodiment of the present invention, the nozzle body 10 is further provided with a second diversion cavity 12, one end of the second diversion cavity 12 opens on the inner wall surface of the first diversion cavity 11 and is communicated with the annular space, and the other end of the second diversion cavity 12 opens on the outer side wall of the nozzle body 10.
In an alternative embodiment of the present invention, a nozzle 40 is installed at the other end of the first guide chamber 11, and the nozzle 40 has a first spray chamber 41 penetrating in the axial direction of the first guide chamber 11.
In an alternative example of this embodiment, the inner wall surface of the first ejection chamber 41 facing the end of the abrasive head 20 is an inner conical surface that gradually decreases in diameter in the direction from the abrasive head 20 to the nozzle 40.
In an alternative embodiment of the present invention, the first diversion cavity 11 has a first diversion section 111, a second diversion section 112, and a third diversion section 113 sequentially arranged along an axial direction thereof, an inner diameter of the second diversion section 112 is smaller than an inner diameter of the first diversion section 111 and an inner diameter of the third diversion section 113, and a third limit step and a fourth limit step are formed, respectively, the nozzle 40 is detachably installed in the third diversion section 113 through the pressing screw stop 50, the pressing screw stop 50 is provided therein with a second injection cavity 51 formed along the axial direction of the first diversion cavity 11, an outer wall of the pressing screw stop 50 is in threaded fit with an inner wall of the third diversion section 113, one end of the nozzle 40 abuts against the fourth limit step, and the other end of the nozzle 40 abuts against the pressing screw stop 50.
In an optional embodiment of the present invention, one end of the second connecting section 22, which faces away from the first connecting section 21, is a jet end 26 and extends into the second flow guiding section 112, an outer wall of the jet end 26 is attached to an inner wall of the second flow guiding section 112, a plurality of jet grooves 27 are formed in the outer wall of the jet end 26, the plurality of jet grooves 27 are uniformly distributed along a circumferential direction of the jet end 26, and each jet groove 27 is formed along a direction parallel to an axial direction of the second connecting section 22. With the above-described construction, the jet grooves 27 are formed in the abrasive head 20, and the jet grooves 27 and the abrasive channel 28 are integrated into one piece (the abrasive head 20) to form a central unitary structure.
Referring to fig. 1 to 5, the assembly and use process of the ultrasonic post-mix nozzle 100 according to the present invention will be described in detail with reference to an embodiment:
according to the ultrasonic post-mixing spray head 100 provided by the utility model, firstly, the piezoelectric ceramics 32 and the mounting plate 31 are connected together through the amplitude transformer 33 to form the ultrasonic device 30, and meanwhile, the amplitude transformer 33 and the mounting plate 31 are connected through the bolt 34 to form pre-tightening force for the piezoelectric ceramics 32; connecting the ultrasonic device 30 and the abrasive head 20 together through a bolt 34, and making the electric wire of the ultrasonic device 30 pass through the electric wire channel 25 from the upper part of the abrasive head 20, and sealing the outlet of the electric wire channel 25 by using a sealing pressure head 29 to prevent high-pressure water from flowing out along the electric wire channel 25; finally, the assembled ultrasonic device 30 and abrasive head 20 are mounted on the showerhead body 10.
The ultrasonic post-mixing nozzle 100 provided by the utility model mixes the abrasive conveyed by the abrasive channel 28 with the high-pressure water conveyed by the second diversion cavity 12; meanwhile, the ultrasonic device 30 continuously slaps the high-pressure water at a high speed after being electrified to provide a quick force for the high-pressure water, meanwhile, the high-pressure water enters the nozzle 40 through the jet groove 27, the high-speed water jet is formed in the nozzle 40, and the high-pressure water drives the abrasive to cut the rock, so that the rock breaking is realized.
According to the ultrasonic post-mixing spray head 100 provided by the utility model, the side edge of the ultrasonic device 30 is not contacted with the abrasive pressure head 20, so that the force can act on high-pressure water as much as possible, and the rock breaking efficiency is further improved.
The present invention is not limited to the above embodiments, and in particular, various features described in different embodiments can be arbitrarily combined with each other to form other embodiments, and the features are understood to be applicable to any embodiment except the explicitly opposite descriptions, and are not limited to the described embodiments.
Claims (11)
1. The utility model provides a shower nozzle is mixed after supersound, a serial communication port, the shower nozzle is mixed including shower nozzle body, abrasive material pressure head and ultrasonic device after the supersound, the shower nozzle body has the first water conservancy diversion chamber that the axial link up, the abrasive material pressure head is the tubulose and has the abrasive material passageway that the axial link up, the one end in first water conservancy diversion chamber is worn to locate by the abrasive material pressure head, the abrasive material pressure head has first linkage segment and the second linkage segment along its axial setting, the external diameter of first linkage segment is greater than the external diameter of second linkage segment forms first spacing step, first linkage segment with the sealed fixed connection of inner wall in first water conservancy diversion chamber, the outer wall of second linkage segment with form annular interval between the inner wall in first water conservancy diversion chamber, the ultrasonic device is located in the annular interval, just the ultrasonic device can dismantle ground fixed connection be in on the first spacing step.
2. The ultrasonic post-mixing nozzle of claim 1, wherein gaps are respectively provided between the ultrasonic device and the inner wall of the first diversion cavity and between the ultrasonic device and the outer wall of the second connecting section.
3. The ultrasonic post-mixing nozzle according to claim 1 or 2, wherein the ultrasonic device comprises a mounting plate, a piezoelectric ceramic and an amplitude transformer, the mounting plate is an annular plate, the piezoelectric ceramic and the amplitude transformer are both cylindrical, the amplitude transformer is provided with a mounting section and an amplitude-changing section which are arranged along the axial direction of the amplitude transformer, the outer diameter of the amplitude-changing section is larger than the outer diameter of the mounting section to form a mounting step, the mounting plate and the piezoelectric ceramic are sequentially sleeved outside the mounting section, the inner edge of the mounting plate is detachably and fixedly connected with the mounting section, two ends of the piezoelectric ceramic respectively abut against the mounting step and the mounting plate, the amplitude transformer is sleeved outside the second connecting section, and the mounting plate is detachably and fixedly connected with the first limiting step.
4. The ultrasonic post-mix nozzle of claim 3 wherein a gap is provided between the inner wall of the horn and the second connecting section, and the outer edge of the mounting plate, the outer wall of the piezoelectric ceramic, and the outer wall of the horn are each provided with a gap from the inner wall of the first baffle chamber.
5. The ultrasonic back mixing nozzle as claimed in claim 4, wherein the first limiting step is provided with an accommodating ring groove, the accommodating ring groove is formed along the outer wall of the second connecting section towards the first connecting section, one end of the mounting section, which is opposite to the amplitude varying section, is inserted into the accommodating ring groove 2, and a gap is formed between the end of the mounting section and the inner wall of the accommodating ring groove.
6. The ultrasonic post-mix nozzle as claimed in claim 3, wherein an end of the horn section facing away from the piezoelectric ceramic has a water wave reinforcing shroud projecting radially of the horn section.
7. The ultrasonic post-mix nozzle of claim 3, wherein a wire channel is formed in the first connecting section, one end of the wire channel opens into the first limiting step, and the other end of the wire channel opens into an end surface of the abrasive head facing away from the ultrasonic device.
8. The ultrasonic post-mixing sprinkler according to claim 1, wherein a second diversion cavity is further formed in the sprinkler body, one end of the second diversion cavity opens on the inner wall surface of the first diversion cavity and is communicated with the annular space, and the other end of the second diversion cavity opens on the outer side wall of the sprinkler body.
9. The ultrasonic back mixing nozzle as claimed in claim 1, wherein a nozzle is installed at the other end of the first guide chamber, and the nozzle has a first spray chamber penetrating in the axial direction of the first guide chamber.
10. The ultrasonic back mixing nozzle as claimed in claim 9, wherein the first flow guiding cavity has a first flow guiding section, a second flow guiding section and a third flow guiding section sequentially arranged along an axial direction thereof, an inner diameter of the second flow guiding section is smaller than an inner diameter of the first flow guiding section and an inner diameter of the third flow guiding section, respectively, the abrasive head is detachably mounted in the first flow guiding section, and the nozzle is detachably mounted in the third flow guiding section.
11. The ultrasonic after-mixing showerhead of claim 10, wherein an end of the second connection section facing away from the first connection section is a jet end and extends into the second flow guiding section, a sidewall of the jet end is attached to an inner wall of the second flow guiding section, a plurality of jet grooves are formed on the sidewall of the jet end, the plurality of jet grooves are uniformly distributed along a circumferential direction of the jet end, and each jet groove is formed along a direction parallel to an axial direction of the second connection section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122724782.1U CN216077122U (en) | 2021-11-09 | 2021-11-09 | Ultrasonic post-mixing spray head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122724782.1U CN216077122U (en) | 2021-11-09 | 2021-11-09 | Ultrasonic post-mixing spray head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033413A (en) * | 2021-11-09 | 2022-02-11 | 中铁工程装备集团有限公司 | Ultrasonic-assisted high-pressure water jet mixed abrasive nozzle and heading machine |
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2021
- 2021-11-09 CN CN202122724782.1U patent/CN216077122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033413A (en) * | 2021-11-09 | 2022-02-11 | 中铁工程装备集团有限公司 | Ultrasonic-assisted high-pressure water jet mixed abrasive nozzle and heading machine |
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