High-bundling ultrahigh-pressure nozzle for cleaning
By optimizing the internal flow channel structure of the nozzle and the detachable nozzle design, the problems of uneven flow and short service life of traditional nozzles are solved, achieving high-efficiency cleaning and long-life ultra-high pressure spraying effect, which is suitable for shell and tube heat exchangers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional cylindrical high-pressure nozzles in shell-and-tube heat exchangers suffer from uneven fluid flow, turbulence, and eddies, leading to increased flow resistance, reduced spraying efficiency, and short service life.
A high-pressure nozzle for high-focus cleaning was designed, including a flow guiding chamber, a pressurizing chamber and a jet chamber. The nozzle body is provided with an outwardly expanding water spray hole. The nozzle body is detachably connected and adaptive rotation cleaning is achieved through a support unit. The internal flow channel of the nozzle is optimized to reduce friction and improve fluid stability.
It improves the stability and speed of the jet fluid, extends the service life of the nozzle, enhances the cleaning effect, and saves costs without requiring modification of the original equipment.
Smart Images
Figure CN224072286U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of nozzle technology, specifically relating to an ultra-high pressure nozzle for high-concentration cleaning. Background Technology
[0002] During the use of shell-and-tube heat exchangers, problems such as oxidation, corrosion, and scale often occur. The scale that forms on the inner wall not only adversely affects fluid flow and heat exchange efficiency but also causes damage to the heat exchanger material.
[0003] Traditional cylindrical high-pressure nozzles, due to their internal constriction structure, exhibit uneven fluid flow, increasing flow resistance and generating turbulence and unstable jets, thus reducing spray efficiency. At the constriction point, a vortex zone is generated, where the vortex gains energy from the main flow through momentum exchange. This energy is dissipated within the vortex and through friction between the vortex and the nozzle wall, ultimately being converted into heat and dissipated outwards, preventing the required jet pressure from being achieved. Furthermore, after a period of use, the vortex can wear down the inner wall of the nozzle outlet, ultimately leading to low nozzle efficiency and a shortened service life. Utility Model Content
[0004] The purpose of this invention is to address the above-mentioned problems by proposing an ultra-high pressure nozzle for high-concentration cleaning, which improves working efficiency and service life.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] This utility model proposes an ultra-high pressure nozzle for high-concentration cleaning, comprising a nozzle body, on which a guide cavity, a pressurizing cavity, and a jet cavity are sequentially connected along the water flow direction. Both the guide cavity and the jet cavity are cylindrical holes, and the inner diameter of the guide cavity is larger than the inner diameter of the jet cavity. The outlet end of the jet cavity is also provided with an outwardly expanding spray hole. The pressurizing cavity is a conical hole with a taper of 25° to 45°.
[0007] Preferably, the length of the pressurization chamber is 9.5mm to 11mm, the length of the jet chamber is 1.5mm to 2.25mm, the length of the outward-expanding water spray hole is 0.3mm to 0.5mm, and the outward-expanding angle is 50° to 70°.
[0008] Preferably, the outer wall of the nozzle body is also coaxially connected to a limiting boss, which is a hollow polygonal column.
[0009] Preferably, the high-pressure nozzle for high-focus cleaning is also used for detachable connection with the nozzle body, and the nozzle body has a main channel communicating with the guide cavity.
[0010] Preferably, the nozzle body is further provided with a first thread, and the nozzle body is provided with a number of side channels that are connected to the main channel in a circumferential manner along the axis. The side channels are inclined relative to the main channel and face the water inlet end. The side channels are provided with a second thread, and the first thread and the second thread are connected in a one-to-one correspondence.
[0011] Preferably, the axes of each side channel intersect at a single point.
[0012] Preferably, the end of the nozzle body furthest from the water inlet is conical.
[0013] Preferably, the nozzle body is further provided with a third thread, which is coaxially arranged with the main channel and used to connect the water pipe.
[0014] Preferably, the water pipe is also wound around a pipe winder, and the nozzle body is mounted on a support unit, which is used to house the nozzle body within the pipe and support its movement relative to the pipe.
[0015] Preferably, the support unit includes a bracket and several telescopic legs. The nozzle body is connected to the bracket, and the telescopic legs include telescopic rods and rollers. One end of the telescopic rod is connected to the bracket, and the other end is connected to the rollers. The rollers are attached to the pipe to support the nozzle body.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1) The internal flow channel of the nozzle body of this application consists of four parts, including a guide cavity, a pressurization cavity, a jet cavity, and an outwardly expanded water spray hole. The smooth internal structure of the nozzle reduces the friction between the fluid and the nozzle interior, which plays a role in stabilizing the jet. The outwardly expanded water spray hole opened at the outlet end of the jet cavity can reduce the phenomenon of fluid adhering to the wall at the nozzle outlet, increase the stability of the jet, increase the initial section length of the jet, thereby improving the hydraulic performance of the jet, i.e., the focusing ability, which greatly improves the velocity of the fluid jet in the ultra-high pressure nozzle, resulting in high working efficiency and helping to extend the service life.
[0018] 2) The front end of the nozzle body is conical, which reduces the resistance during the forward movement. It has multiple side channels with their axes intersecting at an angle with the axis of the main channel, thus achieving the inclined setting of the nozzle relative to the axis of the main channel. Combined with the internal flow channel design of the nozzle body, the stability of the jet formed by the spray is increased and the effective impact area is large. In addition, the nozzle can be detached and reassembled for different pipe sections and dirt of different hardness without the need to modify the original equipment, so that the surface being cleaned can achieve a good cleaning effect and save costs.
[0019] 3) Compared with existing rotatable nozzles, this device does not require the nozzle body to rotate. With the support of the support unit, it can perform adaptive rotation cleaning while the swivel tube is retracting. It has a simple structure, is easy to operate, and has low cost. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the ultra-high pressure nozzle for high-concentration cleaning according to this utility model;
[0021] Figure 2 This is a cross-sectional view of the ultra-high pressure nozzle for high-concentration cleaning according to this utility model;
[0022] Figure 3 This is a cross-sectional view of the nozzle of this utility model;
[0023] Figure 4 This is a schematic diagram of the operation of the ultra-high pressure nozzle for high-density cleaning according to this utility model.
[0024] Explanation of reference numerals in the attached drawings: 1. Nozzle body; 2. Limiting boss; 3. First thread; 4. Guide cavity; 5. Outwardly expanding spray hole; 6. Nozzle body; 7. Second thread; 8. Third thread; 9. Main channel; 10. Jet cavity; 11. Pressurizing cavity; 12. Swirl; 13. Water pipe; 14. Support unit; 15. Pipeline. Detailed Implementation
[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0026] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application.
[0027] like Figure 1-4 As shown, a high-pressure nozzle for high-focus cleaning includes a nozzle body 1. The nozzle body 1 has a guide cavity 4, a pressurizing cavity 11 and a jet cavity 10 connected sequentially along the water flow direction. The guide cavity 4 and the jet cavity 10 are both cylindrical holes, and the inner diameter of the guide cavity 4 is larger than the inner diameter of the jet cavity 10. The outlet end of the jet cavity 10 is also provided with an outwardly expanding spray hole 5. The pressurizing cavity 11 is a conical hole with a taper of 25° to 45°.
[0028] Hereinafter, the ultra-high pressure nozzle for high-concentration cleaning is referred to as the ultra-high pressure nozzle. This ultra-high pressure nozzle optimizes the flow channel shape, with the inner diameter of the guide cavity 4 being larger than the inner diameter of the jet cavity 10. That is, the end where the guide cavity 4 is located is the liquid inlet, and the end where the jet cavity 10 is located is the liquid outlet. A pressurization cavity 11 is provided, with an angle of 25° to 45° between it and the axis of the nozzle body 1. An outwardly expanding spray hole 5 is also provided at the outlet end of the jet cavity 10, reducing fluid adhesion to the wall at the outlet of the ultra-high pressure nozzle, increasing the stability of the jet, and increasing the initial length of the jet, thereby improving the hydraulic performance of the jet, i.e., its concentration, and significantly increasing the velocity of the fluid jet within the ultra-high pressure nozzle to a certain extent.
[0029] In one embodiment, the length of the pressurizing chamber 11 is 9.5 mm to 11 mm, the length of the jet chamber 10 is 1.5 mm to 2.25 mm, and the length of the outward-expanding water jet hole 5 is 0.3 mm to 0.5 mm with an outward expansion angle of 50° to 70°. Preferably, the length of the jet chamber 10 is 2 mm. An outward-expanding water jet hole 5 is introduced at the outlet end of the jet chamber 10. The length of the outward-expanding water jet hole 5 is 0.4 mm, and the outward expansion angle is 60°. That is, the outward-expanding water jet hole 5 is formed by chamfering at the outlet end of the jet chamber 10, with a chamfer of 60°.
[0030] In one embodiment, a limiting boss 2 is coaxially connected to the outer wall of the nozzle body 1. The limiting boss 2 is a hollow polygonal column. The nozzle body 1 is pressed tightly by the limiting boss 2 to prevent the nozzle body 1 from moving or axially falling off. The nozzle body 1 and the limiting boss 2 can be integrally formed. The limiting boss 2 is preferably hexagonal, which facilitates tightening with a wrench, etc.
[0031] In one embodiment, the high-pressure nozzle for high-focus cleaning is also used for detachable connection with the nozzle body 6, the nozzle body 6 having a main channel 9 communicating with the guide cavity 4. For example... Figure 3 As shown, the nozzle body 6 and the ultra-high pressure nozzle have a connected flow channel. Multiple ultra-high pressure nozzles can be integrated through the nozzle body 6, resulting in better cleaning efficiency and cleaning effect.
[0032] In one embodiment, the nozzle body 1 is further provided with a first thread 3, and the nozzle head body 6 has a plurality of side channels circumferentially distributed along the axis, communicating with the main channel 9. The side channels are inclined relative to the main channel 9 and face the water inlet end. The side channels are provided with second threads 7, and the first thread 3 and the second thread 7 are connected in a one-to-one correspondence. The threaded connection between the nozzle body 1 and the nozzle head body 6 makes it detachable, which is convenient for replacement and maintenance, and can also be sealed with Teflon tape and gaskets to improve the stability of use.
[0033] In one embodiment, the axes of the side channels intersect at a single point. For example, in this embodiment, six side channels are evenly distributed relative to the axis of the nozzle body 6, with the apex of the extended axis of each side channel located on the axis of the nozzle body 6 and intersecting at a single point. By adjusting the length of the nozzle body 1, the target distance from the ultra-high pressure nozzle to the impact surface can be controlled, thereby achieving cleaning effects at different target distances.
[0034] In one embodiment, the end of the nozzle body 6 furthest from the water inlet is tapered. This tapered shape reduces the resistance to the nozzle's forward impact during use, thus altering the target distance and making it suitable for cleaning dirt from different pipe sections without requiring equipment modifications, saving costs.
[0035] In one embodiment, the nozzle body 1 is further provided with a third thread 8, which is coaxially arranged with the main channel 9 and used to connect the water pipe 13.
[0036] In one embodiment, the water pipe 13 is also wound around the pipe coiler 12, and the nozzle body 6 is mounted on the support unit 14, which is used to house the pipe 15 and support the movement of the nozzle body 6 relative to the pipe 15.
[0037] In one embodiment, the support unit 14 includes a bracket and several telescopic legs. The nozzle body 6 is connected to the bracket. The telescopic legs include telescopic rods and rollers. One end of the telescopic rod is connected to the bracket, and the other end is connected to the rollers. The rollers are attached to the pipe 15 to support the nozzle body 6.
[0038] The telescopic rod can be a spring telescopic rod as in the prior art. Each telescopic leg is distributed on the outside of the bracket. Preferably, it supports the nozzle body 6 so that it is located in the center of the pipe 15 for uniform cleaning. The telescopic rod can adaptively adjust the rollers to make it adhere to the pipe 15. It can adapt to different pipe shapes, such as round, rectangular, or deformed pipes, and has a wide range of applications.
[0039] Working principle:
[0040] In use, the ultra-high pressure nozzle is threadedly connected to the nozzle body 6. The nozzle body 6 is also connected to the water pipe 13, which is connected to the swivel device 12. During the rotation of the pipe release and retraction process, the swivel device 12 drives the nozzle body 6 to rotate at multiple angles, thus widening the jet area. Furthermore, the swivel device 12 also performs secondary cleaning of the pipe during the reverse rotation to retract the water pipe 13, forcing the nozzle body 6 to move in the opposite direction to the water jet's propulsion. This operation collects the cleaned dirt at the end of the pipe being cleaned (such as the inlet), achieving rapid cleaning. The nozzle body 6 is also mounted on the support unit 14, ensuring that the nozzle body 6 remains essentially centered on the pipe 15 during its forward movement.
[0041] The nozzle body of this application has an internal flow channel consisting of four parts: a guide chamber, a pressurization chamber, a jet chamber, and an outwardly expanding spray hole. The smooth internal structure of the nozzle reduces friction between the fluid and the nozzle interior, stabilizing the jet flow. Furthermore, the outwardly expanding spray hole at the outlet end of the jet chamber reduces fluid adhesion to the nozzle outlet wall, increasing jet stability and the initial jet length, thereby improving the jet's hydraulic performance, i.e., its focusing ability. This significantly increases the velocity of the fluid jet within the ultra-high pressure nozzle, resulting in high working efficiency and extending service life. The nozzle body's front end is conical, reducing resistance during forward movement, and its sideflow channel... Multiple nozzles are positioned with their axes intersecting at an angle to the axis of the main channel, thus achieving an inclined setting of the nozzle relative to the axis of the main channel. Combined with the internal flow channel design of the nozzle body, this increases the stability of the jet formed by the spray and increases the effective impact area. In addition, the nozzles are detachable and can be disassembled and reassembled for different pipe sections and dirt of different hardness without modifying the original equipment, achieving good cleaning results on the cleaned surface and saving costs. Compared with existing rotatable nozzles, this device does not require the nozzle body to rotate. With the support of the support unit, it can perform adaptive rotation cleaning while the swivel tube is retracting. It has a simple structure, is easy to operate, and has low cost.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The embodiments described above are merely specific and detailed examples of the embodiments described in this application, and should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.
Claims
1. A high-concentration cleaning ultrahigh-pressure nozzle, characterized by: The high-concentration cleaning ultra-high pressure nozzle comprises a nozzle body (1) provided with a flow guide cavity (4), a pressure boosting cavity (11) and a jet cavity (10) sequentially communicated along the water flow direction, the flow guide cavity (4) and the jet cavity (10) are both cylindrical holes, the inner diameter of the flow guide cavity (4) is larger than that of the jet cavity (10), the outlet end of the jet cavity (10) is further provided with an outward expansion water hole (5), and the pressure boosting cavity (11) is a conical hole with a taper of 25°-45°.
2. The high-concentration cleaning ultra-high pressure nozzle according to claim 1, characterized by: The length of the pressure boosting cavity (11) is 9.5-11 mm, the length of the jet cavity (10) is 1.5-2.25 mm, the length of the outward expansion water hole (5) is 0.3-0.5 mm, and the outward expansion angle is 50°-70°.
3. The high-concentration cleaning ultra-high pressure nozzle according to claim 1, characterized in that: The outer wall of the nozzle body (1) is further coaxially connected with a limiting boss (2), and the limiting boss (2) is a hollow polygonal column.
4. The high-concentration cleaning ultra-high pressure nozzle according to claim 1, characterized by: The high-concentration cleaning ultra-high pressure nozzle is further used to be detachably connected with a nozzle body (6), and the nozzle body (6) is provided with a main flow channel (9) communicated with the flow guide cavity (4).
5. The high-concentration cleaning ultra-high pressure nozzle according to claim 4, characterized by: The nozzle body (1) is further provided with a first thread (3), the nozzle body (6) is provided with a plurality of side flow channels communicated with the main flow channel (9) and distributed along the axis in a ring shape, the side flow channels are obliquely arranged relative to the main flow channel (9) and face the water inlet end, the side flow channels are provided with a second thread (7), and the first thread (3) and the second thread (7) are one-to-one correspondingly connected.
6. The high-concentration cleaning ultra-high pressure nozzle according to claim 5, characterized by: The axes of the side flow channels intersect at a point.
7. The high-concentration cleaning ultra-high pressure nozzle according to claim 4, characterized by: The end of the nozzle body (6) away from the water inlet end is conical.
8. The high-concentration cleaning super-high-pressure nozzle according to claim 4, characterized by: The nozzle body (1) is further provided with a third thread (8), the third thread (8) is coaxially arranged with the main flow channel (9) and used to connect a water pipe (13).
9. The high-concentration cleaning ultra-high pressure nozzle according to claim 8, characterized by: The water pipe (13) is further wound on a spiral pipe device (12), the nozzle body (6) is installed on a support unit (14), and the support unit (14) is used to be built-in in a pipeline (15) and support the nozzle body (6) to move relative to the pipeline (15).
10. The high-concentration cleaning super-high-pressure nozzle according to claim 9, characterized by: The support unit (14) comprises a support and a plurality of telescopic legs, the nozzle body (6) is connected with the support, the telescopic legs comprise telescopic rods and rollers, one end of the telescopic rod is connected with the support, the other end is connected with the roller, and the roller is attached to the pipeline (15) to support the nozzle body (6).