CN115870468A - Nozzle assembly - Google Patents
Nozzle assembly Download PDFInfo
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- CN115870468A CN115870468A CN202111147518.4A CN202111147518A CN115870468A CN 115870468 A CN115870468 A CN 115870468A CN 202111147518 A CN202111147518 A CN 202111147518A CN 115870468 A CN115870468 A CN 115870468A
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- nozzle
- core
- branch pipe
- wall
- nozzle head
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Abstract
The application discloses nozzle assembly includes: a branch pipe for transferring a medium; one end of the nozzle head is connected with the nozzle head of the branch pipe, and the other end of the nozzle head is provided with a jet orifice for jetting the medium; the side wall of the nozzle core is connected to the inner wall of the nozzle head, at least two spiral grooves are formed in one side, close to the branch pipe, of the nozzle core, one end of each spiral groove is closed, the other end of each spiral groove extends to the side wall of the nozzle core, spiral channels are formed between the spiral grooves in the side wall of the nozzle core and the inner wall of the nozzle head, and the spiral channels extend to the other end of the nozzle core; an atomizing cavity is arranged in the nozzle head and is arranged between the nozzle core and the jet orifice, and the atomizing cavity is communicated with the jet orifice and the spiral channel respectively. The medium changes from direct flow to rotary flow after flowing through the nozzle core, and the medium is accelerated and collided in the atomizing cavity, so that the atomizing effect is better.
Description
Technical Field
The present disclosure relates generally to the field of metallurgical device cooling, and more particularly to a nozzle assembly.
Background
The continuous casting machine is widely applied to the field of metallurgy, the pulling speed of the continuous casting machine needs to be increased for increasing the yield, and the cooling effect of a matched secondary cooling device needs to be synchronously improved while the pulling speed of the continuous casting machine is increased. In the prior art, a secondary cooling device mostly adopts a common spray nozzle, the atomization degree of sprayed media is poor, and the secondary cooling requirement of a continuous casting machine at a high drawing speed cannot be met.
Disclosure of Invention
In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a nozzle assembly with improved atomization.
The specific technical scheme is as follows:
the present application provides a nozzle assembly comprising:
a branch pipe for conveying a medium;
the nozzle head, one end of the nozzle head is connected to one end of the branch pipe, the other end is provided with a jet orifice for jetting the medium;
the side wall of the nozzle core is connected to the inner wall of the nozzle head, at least two spiral grooves are formed in one side, close to the branch pipe, of the nozzle core, one end of each spiral groove is closed, the other end of each spiral groove extends to the side wall of the nozzle core, spiral channels are formed by the spiral grooves in the side wall of the nozzle core and the inner wall of the nozzle head, and the spiral channels extend to the other end of the nozzle core;
an atomization cavity is arranged in the nozzle head, the atomization cavity is arranged between the nozzle core and the jet orifice, and the atomization cavity is communicated with the jet orifice and the spiral channel respectively.
Further, still include: the cyclone core, the cyclone core lateral wall connect in on the branch pipe inner wall, be equipped with two at least whirl grooves on the cyclone core, whirl groove will in the branch pipe the space intercommunication of whirl core both sides.
Further, a branch pipe joint is arranged at the other end of the branch pipe;
the nozzle assembly further comprises:
the main pipe is used for inputting a medium, a main pipe joint is arranged on the side wall of the main pipe, and the main pipe joint is communicated with the branch pipe joints;
and one end of the first filtering grid is connected to the inner wall of the branch pipe joint, and the other end of the first filtering grid is closed and extends into the main pipe.
Further, the method also comprises the following steps: a second filter grid having one end connected to the inner wall of the nozzle head and the other end closed and extending into the branch pipe.
Further, the method also comprises the following steps:
the rectifying core comprises a solid cylinder and separation blades circumferentially arranged along the outer wall of the solid cylinder, and the separation blades are connected to the inner wall of the second filtering grid;
the flow limiting sleeve is arranged between the rectifying core and the nozzle core and connected to the inner wall of the second filtering grid, and the inner diameter of the flow limiting sleeve is gradually reduced from one side close to the rectifying core to one side close to the nozzle core.
Further, a beam current groove is formed in the other end of the nozzle head and communicated with the jet port;
a gap formed on the end face of the other end of the nozzle head by the beam current groove is rectangular;
a first preset included angle is formed between the center of the jet orifice and a connecting line of two ends of the longer side of the rectangular notch;
and a second preset included angle is formed between the center of the jet orifice and a connecting line at two ends of the shorter side of the rectangular notch.
Further, the nebulizing chamber comprises:
the extension section is a part close to one side of the nozzle core, and the inner diameter of the extension section is constant along the extension direction of the atomizing cavity;
the contraction section is a part close to one side of the jet opening, and the inner diameter of the contraction section is gradually reduced along with the extension of the atomization cavity to the jet opening.
Further, the nozzle head is connected to one end of the branch pipe by a first nut.
Further, the branch pipe joint is connected to the main pipe joint through a second nut.
Furthermore, a sealing ring is arranged at the joint of the branch pipe joint and the main pipe joint.
The beneficial effect of this application lies in:
when the medium flows into the nozzle head through the branch pipe, the flow direction of the medium is changed by more than two spiral grooves on one side of the nozzle core close to the branch pipe when the medium flows through the nozzle core, and the medium flowing through different spiral grooves collides with each other in the atomizing cavity more intensely under the action of the spiral channel, the medium is atomized more fully, the density of atomized medium particles sprayed out through the spray opening is higher, and the cooling effect is more prominent.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the overall construction of a nozzle assembly according to the present application;
FIG. 2 is an end view of the nozzle core of the nozzle assembly of FIG. 1 on a side thereof adjacent the manifold;
FIG. 3 is a cross-sectional view through the axis of the nozzle core of the nozzle assembly of FIG. 1.
Reference numbers in the figures: 1, branch pipes; 2, a nozzle head; 20, an ejection port; 21, a nozzle core; 211, a spiral groove; 22, a swirl core; 11, branch pipe joints; 3, a header pipe; 31, a manifold joint; 41, a first filter grid; 42, a second filter grid; 13, a rectifying core; 14, a flow limiting sleeve; 200, beam current grooves; 201, an extension section; 202, a contraction section; 120, a first nut; 130, a second nut; 131, sealing ring.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, the present embodiment provides a nozzle assembly, including:
a branch pipe 1, wherein the branch pipe 1 is used for conveying a medium;
a nozzle head 2, one end of the nozzle head 2 is connected with one end of the branch pipe 1, and the other end is provided with a jet orifice 20 for jetting the medium;
the nozzle core 21, the side wall of the nozzle core 21 is connected to the inner wall of the nozzle head 2, at least two spiral grooves 211 are arranged on one side of the nozzle core 21 close to the branch pipe 1, one end of each spiral groove 211 is closed, the other end of each spiral groove 211 extends to the side wall of the nozzle core 21, the spiral grooves 211 on the side wall of the nozzle core 21 and the inner wall of the nozzle head 2 form a spiral channel, and the spiral channel extends to the other end of the nozzle core 21;
an atomization cavity is arranged in the nozzle head 2, the atomization cavity is arranged between the nozzle core 21 and the jet orifice 20, and the atomization cavity is respectively communicated with the jet orifice 20 and the spiral channel.
When the medium passes through the branch pipe 1 and flows into the nozzle head 2, when the medium passes through the nozzle core 21, the flow direction of the medium is changed by more than two spiral grooves 211 on one side of the nozzle core 21 close to the branch pipe 1, and the medium passing through different spiral grooves 211 is enabled to collide with each other more strongly when flowing into the atomizing cavity through the action of the spiral channel, the medium is atomized more fully, the density of the atomized medium particles sprayed out through the spray opening 20 is higher, and the cooling effect is more prominent. Preferably, the nozzle core 21 is screwed to the inner wall of the nozzle head 2, which facilitates maintenance and replacement of the nozzle core 21.
As shown in fig. 2 and 3, wherein in a preferred embodiment of reducing the internal blockage rate of the branch pipe 1, it further comprises: and the side wall of the cyclone core 22 is connected to the inner wall of the branch pipe 1, at least two cyclone grooves are arranged on the cyclone core 22, and the cyclone grooves communicate the spaces on two sides of the cyclone core 22 in the branch pipe 1.
After passing through the swirl grooves on the swirl core 22, the medium generates kinetic energy along the circumferential direction of the branch pipe 1, the linearly flowing medium becomes a swirl medium, and on one hand, the swirl medium can wash away oil stains on the inner wall of the branch pipe 1 so as not to accumulate; on the other hand, large granular media flowing into the branch pipe 1 can be broken up and can be smoothly discharged out of the nozzle assembly. Both of the above aspects contribute to reducing the rate of clogging of the interior of the branch pipe 1.
In a preferred embodiment for removing large-particle impurities in the medium, the other end of the branch pipe 1 is provided with a branch pipe joint 11;
the nozzle assembly further comprises:
the main pipe 3 is used for inputting media, a main pipe joint 31 is arranged on the side wall of the main pipe 3, and the main pipe joint 31 is communicated with the branch pipe joints 11;
and a first filter grid 41, wherein one end of the first filter grid 41 is connected to the inner wall of the branch pipe joint 11, and the other end of the first filter grid 41 is closed and extends into the main pipe 3.
The medium flows into the nozzle assembly through the header pipe 3, and large-particle impurities in the medium can be primarily filtered through the filtering function of the first filtering grid 41, so that the nozzle assembly can be prevented from being blocked, the flowing medium can flow at a higher speed, and the secondary cooling efficiency is higher.
In a preferred embodiment of removing small particle impurities in the medium, the method further comprises the following steps: a second filter grid 42, one end of the second filter grid 42 is connected to the inner wall of the nozzle head 2, and the other end is closed and extends into the branch pipe 1.
After the medium passes through the first filtering grid 41, although large-particle impurities in the medium are filtered, small-particle impurities are still dissolved in the medium, and the small-particle impurities are broken into smaller particles due to the swirling action of the swirling core 22. After the second filtering grid 42 is additionally arranged, impurities with smaller particles can be filtered out, and the secondary cooling effect is prevented from being influenced by the internal blockage of the nozzle assembly.
Preferably, the filter slits of the second filter grill 42 are smaller than the filter slits of the first filter grill 41.
Wherein in a preferred embodiment of ensuring the intensity of the medium jet, the nozzle assembly further comprises:
the rectifying core 13 comprises a solid cylinder and separation blades circumferentially arranged along the outer wall of the solid cylinder, and the separation blades are connected to the inner wall of the second filtering grid 42;
the flow limiting sleeve 14 is arranged between the rectifying core 13 and the nozzle core 21 and connected to the inner wall of the second filtering grid 42, and the inner diameter of the flow limiting sleeve 14 is gradually reduced from one side close to the rectifying core 13 to one side close to the nozzle core 21.
The medium passes through the rotational flow effect of the rotational flow core 22, and the kinetic energy along the axial direction of the branch pipe 1 is partially converted into the kinetic energy along the circumferential direction of the branch pipe 1. In order to ensure the spraying strength of the medium, on one hand, the rectifying core 13 is additionally arranged, the rectifying core 13 consists of a solid cylinder and separation blades arranged along the circumferential direction of the solid cylinder, and the separation blades are connected to the inner wall of the second filter grid 42, so that the medium flows through a rectifying channel surrounded by the adjacent separation blades, the solid cylinder and the second filter grid 42, the component in the flow direction along the circumferential direction of the branch pipe 1 is converted into the component in the axial direction of the branch pipe 1, and the flow speed of the medium flowing to the nozzle head 2 is effectively increased; on the other hand, the flow restricting sleeve 14 is provided between the rectifying core 13 and the nozzle core 21, and the inner diameter of the flow restricting sleeve 14 gradually decreases from the side close to the rectifying core 13 to the side close to the nozzle core 21, and after the medium flows into the flow restricting sleeve 14, the fluid cross-sectional area gradually decreases, so that the flow speed gradually increases. The improvement of the two aspects can accelerate the flow velocity of the medium in the nozzle assembly, so that the speed of the medium during spraying is increased, and the cooling strength during secondary cooling is ensured.
Wherein in a preferred embodiment of controlling the secondary cooling range, the other end of the nozzle head 2 is provided with a beam current groove 200, and the beam current groove 200 is communicated with the jet orifice 20;
the gap formed on the end face of the other end of the nozzle head 2 by the beam groove 200 is rectangular;
a first preset included angle is formed between the center of the jet orifice 20 and a connecting line of two ends of the longer side of the rectangular notch;
and a second preset included angle is formed between the center of the jet orifice 20 and a connecting line of two ends of the shorter side of the rectangular notch.
The medium is atomized and ejected through the ejection port 20, and the ejection direction of the ejected medium is relatively divergent, so that the part needing to be cooled cannot be cooled according to the situation. Therefore, the beam grooves 200 communicating with the ejection ports 20 are provided in the nozzle head 2, and the beam grooves 200 are formed in a rectangular shape, which makes it possible to make the cooling area more uniform. In addition, by presetting the angle between the center of the injection port 20 and the connecting line of the two ends of the longer sides of the rectangular notch and the angle between the center of the injection port 20 and the connecting line of the two ends of the shorter sides of the rectangular notch, the range of secondary cooling can be controlled more accurately according to the situation.
Wherein in a preferred embodiment of the aerosol chamber internal configuration, the aerosol chamber comprises:
the extension section 201 is a part close to one side of the nozzle core 21, and the inner diameter of the extension section 201 is constant along the extension direction of the atomizing cavity;
a constricted section 202, wherein the constricted section 202 is a portion near the injection port 20 side, and the inner diameter of the constricted section 202 gradually decreases as the atomizing chamber extends toward the injection port 20.
The medium enters the atomizing cavity after passing through the rotational flow of the nozzle core 21, the rotational flow medium is mainly atomized after colliding in the extension section 201, the rotational flow medium which is not collided collides with the inner wall of the contraction section 202 and returns to the extension section 201 to collide continuously, so that the rotational flow medium is fully collided and atomized in the atomizing cavity and then is sprayed out through the spray opening 20, the atomizing effect of the medium is better, and the cooling effect is better. In addition, the extension section 201 has different lengths along the axial direction of the nozzle head 2, and the degree of atomization of the medium is different, so that the length of the extension section 201 along the axial direction of the nozzle head 2 can be selectively adjusted according to specific requirements, and thus, the nozzle assembly can be suitable for different working scenes.
Wherein in a preferred embodiment of the way the nozzle head 2 is connected to the branch pipe 1, the nozzle head 2 is connected to one end of the branch pipe 1 by means of a first nut 24.
The nozzle head 2 is connected to one end of the branch pipe 1 by means of a first nut 24 so that the nozzle head 2 is detachably connected to the branch pipe 1, which facilitates the repair and replacement of the nozzle head 2 and the cleaning of the second filter grid 42.
Wherein in a preferred embodiment of the connection of the branch pipes 1 to the main pipe 3, the branch pipe connections 11 are connected to the main pipe connections 31 by means of second nuts 15.
The branch pipe joint 11 is connected to the main pipe joint 31 through a second nut 15, so that the branch pipe 1 is detachably connected with the main pipe 3, the maintenance and replacement of the branch pipe 1 are facilitated, and the cleaning of the first filter grid 41 is facilitated.
Preferably, one end of the main pipe joint 31 connected to the branch pipe joint 11 is provided with a connecting groove, and the branch pipe joint 11 is inserted into the connecting groove and fixed by the second nut 15. Further, an adjusting groove is provided on an outer wall close to the bottom end of the connecting groove on a portion of the branch pipe joint 11 inserted into the connecting groove. Due to reasons such as machining process, an included angle between the axis of the branch pipe 1 and the axis of the main pipe 3 does not meet actual requirements, and a medium cannot be aligned to an area needing cooling after being sprayed. The adjusting groove is used for correcting an included angle between the axis of the branch pipe 1 and the axis of the main pipe 3, and when the nozzle assembly works normally, a sprayed medium of the nozzle assembly can be over against an area needing cooling.
In the preferred embodiment for preventing the medium leakage, a sealing ring 130 is provided at the connection between the branch pipe joint 11 and the main pipe joint 31.
The joint of the branch pipe joint 11 and the main pipe joint 31 is provided with a sealing ring 130, the joint of the branch pipe joint 11 and the main pipe joint 31 can be sealed by the sealing ring 130, the medium is prevented from leaking at the joint, the flow speed of the medium in the nozzle assembly is ensured, the flow speed of the sprayed atomized medium is further ensured, and the cooling efficiency of the nozzle assembly is further ensured.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A nozzle assembly, comprising:
a branch pipe (1), the branch pipe (1) being used for transporting a medium;
a nozzle head (2), one end of the nozzle head (2) is connected with one end of the branch pipe (1), and the other end is provided with a jet orifice (20) for jetting a medium;
the side wall of the nozzle core (21) is connected to the inner wall of the nozzle head (2), at least two spiral grooves (211) are formed in one side, close to the branch pipe (1), of the nozzle core (21), one end of each spiral groove (211) is closed, the other end of each spiral groove extends to the side wall of the nozzle core (21), the spiral grooves (211) in the side wall of the nozzle core (21) and the inner wall of the nozzle head (2) form a spiral channel, and the spiral channel extends to the other end of the nozzle core (21);
an atomization cavity is arranged in the nozzle head (2), the atomization cavity is arranged between the nozzle core (21) and the jet orifice (20), and the atomization cavity is communicated with the jet orifice (20) and the spiral channel respectively.
2. The nozzle assembly of claim 1, further comprising: the cyclone core (22), cyclone core (22) lateral wall connect in on branch pipe (1) inner wall, be equipped with two at least whirl grooves on cyclone core (22), whirl groove will in branch pipe (1) the space intercommunication of cyclone core (22) both sides.
3. Nozzle assembly according to claim 1, wherein the other end of the branch pipe (1) is provided with a branch pipe connection (11);
the nozzle assembly further comprises:
the main pipe (3) is used for inputting media, a main pipe joint (31) is arranged on the side wall of the main pipe (3), and the main pipe joint (31) is communicated with the branch pipe joint (11);
a first filtering grid (41), wherein one end of the first filtering grid (41) is connected to the inner wall of the branch pipe joint (11), and the other end of the first filtering grid is closed and extends into the header pipe (3).
4. The nozzle assembly of claim 1, further comprising: a second filter grid (42), one end of the second filter grid (42) is connected to the inner wall of the nozzle head (2), and the other end is closed and extends into the branch pipe (1).
5. The nozzle assembly of claim 4, further comprising:
the rectifying core (13) comprises a solid cylinder and separation blades arranged along the circumferential direction of the outer wall of the solid cylinder, and the separation blades are connected to the inner wall of the second filtering grid (42);
the flow limiting sleeve (14) is arranged between the rectifying core (13) and the nozzle core (21) and connected to the inner wall of the second filtering grid (42), and the inner diameter of the flow limiting sleeve (14) is gradually reduced from one side close to the rectifying core (13) to one side close to the nozzle core (21).
6. The nozzle assembly of claim 1, wherein the other end of the nozzle head (2) is provided with a beam current groove (200), and the beam current groove (200) is communicated with the jet port (20);
a gap formed on the end face of the other end of the nozzle head (2) by the beam current groove (200) is rectangular;
a first preset included angle is formed between the center of the jet orifice (20) and a connecting line of two ends of the longer side of the rectangular notch;
and a second preset included angle is formed between the center of the jet orifice (20) and a connecting line at two ends of the shorter side of the rectangular notch.
7. The nozzle assembly of claim 1, wherein the atomizing chamber comprises:
the extension section (201) is a part close to one side of the nozzle core (21), and the inner diameter of the extension section (201) is constant along the extension direction of the atomizing cavity;
a contraction section (202), wherein the contraction section (202) is a part close to one side of the spray opening (20), and the inner diameter of the contraction section (202) is gradually reduced as the atomization cavity extends to the spray opening (20).
8. A nozzle assembly according to any one of claims 1-7, characterized in that the nozzle head (2) is connected to one end of the branch pipe (1) by means of a first nut (120).
9. Nozzle assembly according to any of claims 3-7, wherein the branch fitting (11) is connected to the main fitting (31) by means of a second nut (130).
10. Spray nozzle assembly according to any of claims 3-7, characterized in that a sealing ring (131) is provided at the connection of the branch fitting (11) and the main fitting (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147518.4A CN115870468A (en) | 2021-09-29 | 2021-09-29 | Nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147518.4A CN115870468A (en) | 2021-09-29 | 2021-09-29 | Nozzle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115870468A true CN115870468A (en) | 2023-03-31 |
Family
ID=85755842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111147518.4A Pending CN115870468A (en) | 2021-09-29 | 2021-09-29 | Nozzle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115870468A (en) |
-
2021
- 2021-09-29 CN CN202111147518.4A patent/CN115870468A/en active Pending
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