CN221544668U - Double-layer reinforced cooling tuyere small sleeve - Google Patents
Double-layer reinforced cooling tuyere small sleeve Download PDFInfo
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- CN221544668U CN221544668U CN202323496299.8U CN202323496299U CN221544668U CN 221544668 U CN221544668 U CN 221544668U CN 202323496299 U CN202323496299 U CN 202323496299U CN 221544668 U CN221544668 U CN 221544668U
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- 238000001816 cooling Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000012530 fluid Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 13
- 239000000498 cooling water Substances 0.000 description 31
- 238000003466 welding Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Blast Furnaces (AREA)
Abstract
The utility model discloses a double-layer reinforced cooling tuyere small sleeve, which comprises a flange, an inner sleeve, an outer sleeve and a flow director, wherein the outer sleeve is sleeved outside the inner sleeve, the outer sleeve, the inner sleeve and the flange enclose an inner cavity, and the flow director is arranged in the inner cavity; the flange is provided with a water inlet and a water outlet, the internal cavity is divided into a rear spiral water channel, an outer spiral water channel, an inner cavity water channel and a front end water channel by the flow guider, the outer spiral water channel is positioned at the outer side of the inner cavity water channel, the rear spiral water channel is positioned at the rear side of the outer spiral water channel and the inner cavity water channel, and the front end water channel is positioned at the front side of the outer spiral water channel and the inner cavity water channel; the water inlet is communicated with the rear end of the inner cavity water channel through a water inlet pipe, the front end of the inner cavity water channel is communicated with the front end of the outer spiral water channel through a front end water channel, the rear end of the outer spiral water channel is communicated with the front end of the rear spiral water channel, and the rear end of the rear spiral water channel is communicated with the water outlet. The utility model can improve the cooling effect of the rear half part of the tuyere small sleeve and effectively improve the cooling effect of the whole tuyere small sleeve.
Description
Technical Field
The utility model relates to an air supply system of an ironmaking blast furnace, in particular to a double-layer reinforced cooling tuyere small sleeve.
Background
The working environment of the blast hole small sleeve in the iron-making blast furnace is severe, and the severe working environment is shown in: (1) Blowing the blast furnace with the temperature of more than 1200 ℃ and working in front of a coke swirling zone with the temperature of more than 2000 ℃ to bear the impact of the maximum heat flow intensity of the blast furnace; (2) The liquid slag and the iron drop above the tuyere, and if the swirling area of the tuyere is inactive, the liquid slag and the iron can be directly contacted below the tuyere. Therefore, the tuyere small sleeve extending into the furnace can be subjected to the test of slag iron corrosion at any time; (3) The outer sleeve of the air port needs to bear the mechanical friction of the red-hot coke entering the swirling area of the air port, and the inner sleeve of the air port needs to bear the scouring of the conveyed coal powder during coal injection. The above-mentioned abominable operational environment requires that the tuyere small sleeve has a good cooling performance. With the continuous improvement of the smelting strength of the blast furnace, the working condition of the tuyere is more severe, and the cooling performance of the tuyere small sleeve is more required.
Most of blast furnace tuyere small sleeves in the prior art are of rotational flow type or cross flow type flow guiding structures, the flow guiding structures are formed by integrally casting or welding a taper sleeve and a flow guiding ring or a partition plate in a combined mode, an inner cavity of the blast furnace tuyere small sleeve is divided, wherein the flow guiding ring or the partition plate divides the front half part of the inner cavity, which is positioned on the outer side of the taper sleeve, into a plurality of water chambers and forms rotational flow type cooling water channels, the front half part of the inner cavity is positioned on the inner side of the taper sleeve, a larger front cavity is formed, and the rear half part of the inner cavity is formed into a larger rear cavity. When the cyclone flow guiding structure is used for guiding, cooling water flows into the water channel at the front end of the air port from the larger front cavity, then flows into the larger rear cavity through the water outlet channel to flow out after being swirled through the water chambers at the outer side of the taper sleeve. When the through-flow type flow guiding structure is used for guiding, cooling water is first swirled by the water chambers at the outer side of the taper sleeve, then enters the water channel at the front end of the air port, then enters the larger front cavity, finally flows into the larger rear cavity and flows out through the water outlet channel. Compared with the traditional cooling of the integral cavity structure, although the cooling effect of the two diversion structures on the tuyere jacket is improved, a dead water area is still easy to form because the rear half part of the inner cavity forms a larger rear cavity, cooling water cannot fully take away the heat of the rear half part of the tuyere jacket, the cooling of the tuyere hot air channel copper wall is poor, the cooling effect required by the tuyere under the condition of high smelting strength cannot be achieved, and the service life of the tuyere is influenced.
Disclosure of utility model
The utility model aims to solve the problem of providing the double-layer reinforced cooling tuyere small sleeve, which can improve the cooling effect of the rear half part of the tuyere small sleeve, effectively improve the cooling effect of the whole tuyere small sleeve and prolong the service life of the tuyere small sleeve.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The double-layer reinforced cooling tuyere small sleeve comprises a flange, an inner sleeve, an outer sleeve and a flow director, wherein the outer sleeve is sleeved outside the inner sleeve, an inner cavity is formed by the outer sleeve, the inner sleeve and the flange, and the flow director is arranged in the inner cavity; be equipped with water inlet and delivery port on the flange, its characterized in that: the internal cavity is divided into a rear spiral water channel, an outer spiral water channel, an inner cavity water channel and a front end water channel by the flow guider, the outer spiral water channel is positioned at the outer side of the inner cavity water channel, the rear spiral water channel is positioned at the rear side of the outer spiral water channel and the inner cavity water channel, and the front end water channel is positioned at the front side of the outer spiral water channel and the inner cavity water channel; the water inlet is communicated with the rear end of the inner cavity water channel through a water inlet pipe, the front end of the inner cavity water channel is communicated with the front end of the outer spiral water channel through a front end water channel, the rear end of the outer spiral water channel is communicated with the front end of the rear spiral water channel, and the rear end of the rear spiral water channel is communicated with the water outlet.
The definition of the above inner and outer: the hot air channel of the tuyere small sleeve is taken as the reference, one side close to the hot air channel is taken as the inner side, and one side far away from the hot air channel is taken as the outer side.
The water inlet pipe is arranged in the rear spiral water channel, but is not communicated with the inside of the rear spiral water channel, and the cooling water in the rear spiral water channel can surround the water inlet pipe. When the cooling device works, cooling water enters the inner cavity water channel from the water inlet through the water inlet pipe, after the cooling water flows through the inner cavity water channel, the cooling water is led into the outer spiral water channel through the front end water channel, the cooling water flows in the outer spiral water channel in a spiral mode, then the cooling water is led into the rear spiral water channel, the cooling water flows in the rear spiral water channel in a spiral mode, and finally water is discharged through the water outlet. The cooling water flows spirally in the rear spiral water channel, so that the cooling effect of the rear half part of the tuyere small sleeve can be improved; meanwhile, at the front half part of the small tuyere sleeve, cooling water flows in a spiral shape in the outer spiral water channel, so that the cooling effect of the front half part of the small tuyere sleeve is better, the front and rear parts of the whole small tuyere sleeve are fully cooled, the whole heat transfer is uniform, and the cooling effect is better.
In the preferred scheme, the fluid director comprises a taper sleeve, a front spiral guide ring, a rear spiral guide ring, a plane guide ring and a water baffle, wherein the taper sleeve is arranged at the front half part of the inner cavity; the plane guide ring is arranged at the front end of the taper sleeve, the water baffle is arranged on the front side surface of the plane guide ring, and the edge of the water baffle is tightly matched with the inner wall of the front end of the internal cavity; the rear spiral water channel is positioned at the rear side of the taper sleeve, the outer spiral water channel is positioned at the outer side of the taper sleeve, the inner cavity water channel is positioned at the inner side of the taper sleeve, and the front end water channel is positioned at the front side of the plane guide ring; the taper sleeve separates the outer spiral water channel from the inner cavity water channel; the plane guide ring separates the front end water channel from the external spiral water channel and the inner cavity water channel; the plane water guide ring is provided with a first through hole and a second through hole, the water baffle separates the first through hole from the second through hole, the front end of the inner cavity water channel is communicated with the water inlet end of the front end water channel through the first through hole, and the front end of the outer spiral water channel is communicated with the water outlet end of the front end water channel through the second through hole. When the cooling device works, cooling water enters from the water inlet on the flange, can firstly pass through the inner cavity water channel, so that the cooling water passes between the outer side surface of the inner sleeve and the inner side surface of the taper sleeve, enters into the front end water channel through the first through hole after cooling the inner sleeve, flows through a circle in the front end water channel and cools the front end of the tuyere small sleeve, then enters into the outer spiral water channel through the second through hole, passes between the inner side surface of the outer sleeve and the outer side surface of the taper sleeve, enters into the rear spiral water channel after cooling the outer sleeve, cools the rear half part of the tuyere small sleeve, and finally discharges water out of the tuyere small sleeve through the water outlet on the flange.
In a further preferred embodiment, the first through hole and the water inlet pipe are mutually staggered by 160 ° -200 ° in the circumferential direction of the tuyere small sleeve. After the cooling water enters the inner cavity water channel from the water inlet through the water inlet pipe, the cooling water can flow in the inner cavity water channel in two paths from the two sides of the water inlet pipe and enter the front end water channel through the first through hole.
Generally, the outer edge of the plane guide ring is tightly matched with the inner side surface of the outer sleeve, and the inner edge of the plane guide ring is tightly matched with the outer side surface of the inner sleeve.
In a further preferred scheme, the outer side face of the front part of the rear spiral guide ring is tightly matched with the inner side face of the outer sleeve, the inner side face of the front part of the rear spiral guide ring is tightly matched with the outer side face of the inner sleeve, the outer side face of the rear part of the rear spiral guide ring is tightly matched with the inner side face of the outer wall of the flange, and the inner side face of the rear part of the rear spiral guide ring is tightly matched with the outer side face of the inner wall of the flange.
In a further preferred scheme, at least two middle through holes corresponding to each other in front and back are arranged on the rear spiral guide ring, and the water inlet pipe is positioned in each middle through hole. Through this kind of setting, can ensure that the inlet tube passes each middle through-hole from the water inlet and communicates with the rear end of inner chamber water course.
In a further preferred scheme, the rear spiral water channel is formed by surrounding the flange, the inner side surface of the rear part of the outer sleeve and the outer side surface of the rear part of the inner sleeve.
In a further preferred scheme, the external spiral water channel is formed by enclosing the outer side surface of the taper sleeve and the inner side surface of the outer sleeve.
In a further preferred scheme, the inner cavity water channel is formed by surrounding the inner side surface of the taper sleeve and the outer side surface of the inner sleeve.
In a further preferred scheme, the front-end water channel is formed by enclosing the front side surface of the plane guide ring and the inner wall of the front end of the inner cavity.
In a further preferred embodiment, the front spiral guide ring and the rear spiral guide ring have the same or opposite rotation directions.
In a further preferred scheme, the front spiral guide ring and the rear spiral guide ring are both left spirals or both right spirals.
In a further preferred scheme, the front spiral guide ring is a left spiral, and the rear spiral guide ring is a right spiral; or the front spiral guide ring is a right spiral, and the rear spiral guide ring is a left spiral.
In a specific scheme, the front end of the inner sleeve is connected with the front end of the outer sleeve, and the rear end of the outer sleeve and the rear end of the inner sleeve are fixedly connected with the flange. In a more preferred scheme, the front end of the inner sleeve is integrally connected with the front end of the outer sleeve, the rear end of the outer sleeve is connected with the flange through a first annular welding seam, and the rear end of the inner sleeve is connected with the flange through a second annular welding seam. In another more preferable scheme, the front end of the inner sleeve is connected with the front end of the outer sleeve through a third annular welding seam, the rear end of the outer sleeve is connected with the flange through a first annular welding seam, and the rear end of the inner sleeve is connected with the flange through a second annular welding seam. The inner sleeve, the outer sleeve and the flange are made of copper, copper alloy or steel.
Compared with the prior art, the utility model has the following advantages:
The flow guider adopts a front spiral water channel structure and a rear spiral water channel structure, so that the structural defects of the traditional cavity type and the through flow type can be overcome, the spiral flow of cooling water in the inner cavity from front to back is ensured, heat is timely taken away, the inner sleeve, the outer sleeve and the flange can be effectively cooled, the flow of the cooling water in the inner cavity is smoother and more reasonable, the heat is taken away more fully, the cooling effect is better, and the overall service life of the tuyere small sleeve is effectively prolonged.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 2 is a schematic view of the deflector of FIG. 1;
FIG. 3 is a schematic view showing the structure of the first through hole and the water inlet pipe staggered from each other in embodiment 1 of the present utility model;
FIG. 4 is a schematic structural view of embodiment 2 of the present utility model;
Fig. 5 is a schematic structural view of embodiment 3 of the present utility model.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments.
Example 1
As shown in fig. 1-3, the double-layer reinforced cooling tuyere small sleeve in the embodiment comprises a flange 1, an inner sleeve 2, an outer sleeve 3 and a flow director 4, wherein the outer sleeve 3 is sleeved outside the inner sleeve 2, the outer sleeve 3, the inner sleeve 2 and the flange 1 enclose an inner cavity 5, and the flow director 4 is arranged in the inner cavity 5; the flange 1 is provided with a water inlet 11 and a water outlet 12; the flow guider 4 divides the internal cavity 5 into a rear spiral water channel 51, an outer spiral water channel 52, an inner cavity water channel 53 and a front end water channel 54, the outer spiral water channel 52 is positioned outside the inner cavity water channel 53, the rear spiral water channel 51 is positioned at the rear side of the outer spiral water channel 52 and the inner cavity water channel 53, and the front end water channel 54 is positioned at the front side of the outer spiral water channel 52 and the inner cavity water channel 53; the water inlet 11 is communicated with the rear end of the inner cavity water channel 53 through the water inlet pipe 6, the front end of the inner cavity water channel 53 is communicated with the front end of the outer spiral water channel 52 through the front end water channel 54, the rear end of the outer spiral water channel 52 is communicated with the front end of the rear spiral water channel 51, and the rear end of the rear spiral water channel 51 is communicated with the water outlet 12.
The definition of the above inner and outer: the hot air channel 7 of the tuyere small sleeve is taken as the reference, one side close to the hot air channel 7 is taken as the inner side, and one side far away from the hot air channel 7 is taken as the outer side.
The water inlet pipe 6 is positioned in the rear spiral water channel 51, but is not communicated with the inside of the rear spiral water channel 51, and the water inlet pipe 6 can be surrounded by cooling water in the rear spiral water channel 51. In operation, cooling water is introduced into the inner cavity water channel 53 from the water inlet 11 through the water inlet pipe 6, flows through the inner cavity water channel 53, flows into the outer spiral water channel 52 through the front end water channel 54, flows in a spiral shape in the outer spiral water channel 52, flows into the rear spiral water channel 51, flows in a spiral shape in the rear spiral water channel 51, and finally is discharged through the water outlet 12. Since the cooling water flows spirally in the rear spiral water channel 51, the cooling effect of the rear half of the tuyere small sleeve can be improved; meanwhile, at the front half part of the small tuyere sleeve, cooling water flows in the outer spiral water channel 52 in a spiral manner, so that the cooling effect of the front half part of the small tuyere sleeve is better, the front and rear parts of the whole small tuyere sleeve are fully cooled, the whole heat transfer is uniform, and the cooling effect is better.
The fluid director 4 comprises a taper sleeve 41, a front spiral fluid director ring 42, a rear spiral fluid director ring 43, a plane fluid director ring 44 and a water baffle 45, wherein the taper sleeve 41 is arranged at the front half part of the inner cavity 5, the front spiral fluid director ring 42 is arranged between the outer side surface of the taper sleeve 41 and the inner side surface of the outer sleeve 3, the rear spiral fluid director ring 43 is arranged at the rear half part of the inner cavity 5, and the front end of the rear spiral fluid director ring 43 is connected with the rear end of the front spiral fluid director ring 42; the plane guide ring 44 is arranged at the front end of the taper sleeve 41, the water baffle 45 is arranged on the front side surface of the plane guide ring 44, and the edge of the water baffle 45 is tightly matched with the inner wall at the front end of the internal cavity 5; the rear spiral water channel 51 is positioned at the rear side of the taper sleeve 41, the outer spiral water channel 52 is positioned at the outer side of the taper sleeve 41, the inner cavity water channel 53 is positioned at the inner side of the taper sleeve 41, and the front end water channel 54 is positioned at the front side of the plane guide ring 44; the cone sleeve 41 separates the outer spiral waterway 52 from the inner cavity waterway 53; the planar deflector ring 44 separates the front water channel 54 from the outer spiral water channel 52 and the inner cavity water channel 53; the plane guide ring 44 is provided with a first through hole 441 and a second through hole 442, the water baffle 45 separates the first through hole 441 from the second through hole 442, the front end of the inner cavity water channel 53 is communicated with the water inlet end of the front end water channel 54 through the first through hole 441, and the front end of the outer spiral water channel 52 is communicated with the water outlet end of the front end water channel 54 through the second through hole 442. During operation, cooling water enters from the water inlet 11 on the flange 1, and can firstly pass through the inner cavity water channel 53, so that the cooling water passes through between the outer side surface of the inner sleeve 2 and the inner side surface of the taper sleeve 41, after cooling the inner sleeve 2, the cooling water enters into the front end water channel 54 through the first through hole 441, flows through a circle in the front end water channel 54 and cools the front end of the tuyere small sleeve, then the cooling water enters into the outer spiral water channel 52 through the second through hole 442, the cooling water passes through between the inner side surface of the outer sleeve 3 and the outer side surface of the taper sleeve 41, after cooling the outer sleeve 3, the cooling water enters into the rear spiral water channel 51, the rear half part of the tuyere small sleeve is cooled, and finally the water is discharged out of the tuyere small sleeve through the water outlet 12 on the flange 1.
The first through holes 441 are offset from the water inlet pipe 6 by 160 ° -200 ° in the circumferential direction of the tuyere small sleeve. After the cooling water enters the inner cavity water channel 53 from the water inlet 11 through the water inlet pipe 6, the cooling water can flow in the inner cavity water channel 53 from two sides of the water inlet pipe 6 and enter the front end water channel 54 through the first through hole 441.
Generally, the outer edge of the plane guide ring 44 is tightly matched with the inner side surface of the outer sleeve 3, and the inner edge of the plane guide ring 44 is tightly matched with the outer side surface of the inner sleeve 2.
The outer side surface of the front part of the rear spiral guide ring 43 is tightly matched with the inner side surface of the outer sleeve 3, the inner side surface of the front part of the rear spiral guide ring 43 is tightly matched with the outer side surface of the inner sleeve 2, the outer side surface of the rear part of the rear spiral guide ring 43 is tightly matched with the inner side surface of the outer wall of the flange 1, and the inner side surface of the rear part of the rear spiral guide ring 43 is tightly matched with the outer side surface of the inner wall of the flange 1.
The rear spiral water channel 51 is surrounded by the flange 1, the inner side surface of the rear part of the outer sleeve 3 and the outer side surface of the rear part of the inner sleeve 2.
The outer spiral water channel 52 is surrounded by the outer surface of the cone sleeve 41 and the inner surface of the outer sleeve 3.
The inner cavity water channel 53 is surrounded by the inner side surface of the cone sleeve 41 and the outer side surface of the inner sleeve 2.
The front water channel 54 is defined by the front side surface of the plane guide ring 44 and the inner wall of the front end of the inner cavity 5.
At least two middle through holes 431 corresponding to each other are arranged on the rear spiral guide ring 43, and the water inlet pipe 6 is positioned in each middle through hole 431. With this arrangement, it is ensured that the inlet pipe 6 communicates with the rear end of the inner cavity water passage 53 from the inlet port 11 through the respective intermediate through holes 431.
The front spiral guide ring 42 and the rear spiral guide ring 43 have the same rotation direction.
The front spiral guide ring 42 and the rear spiral guide ring 43 are both right spirals.
The front end of the inner sleeve 2 is connected with the front end of the outer sleeve 3, and the rear end of the outer sleeve 3 and the rear end of the inner sleeve 2 are fixedly connected with the flange 1. The front end of the inner sleeve 2 is integrally connected with the front end of the outer sleeve 3, the rear end of the outer sleeve 3 is connected with the flange 1 through a first annular welding seam 31, and the rear end of the inner sleeve 2 is connected with the flange 1 through a second annular welding seam 32. The inner sleeve 2, the outer sleeve 3 and the flange 1 are made of copper, copper alloy or steel.
Example 2
As shown in fig. 4, the double-layer enhanced cooling tuyere small sleeve in this embodiment is different from embodiment 1 in that:
The front helical baffle ring 42 is counter-rotating to the rear helical baffle ring 43.
The front spiral guide ring 42 is right spiral, and the rear spiral guide ring 43 is left spiral.
Example 3
As shown in fig. 5, the double-layer enhanced cooling tuyere small sleeve in this embodiment is different from embodiment 1 in that:
The front end of the inner sleeve 2 is connected with the front end of the outer sleeve 3 through a third annular welding seam 33, the rear end of the outer sleeve 3 is connected with the flange 1 through a first annular welding seam 31, and the rear end of the inner sleeve 2 is connected with the flange 1 through a second annular welding seam 32.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present utility model are included in the protection scope of the present utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. The double-layer reinforced cooling tuyere small sleeve comprises a flange, an inner sleeve, an outer sleeve and a flow director, wherein the outer sleeve is sleeved outside the inner sleeve, an inner cavity is formed by the outer sleeve, the inner sleeve and the flange, and the flow director is arranged in the inner cavity; be equipped with water inlet and delivery port on the flange, its characterized in that: the internal cavity is divided into a rear spiral water channel, an outer spiral water channel, an inner cavity water channel and a front end water channel by the flow guider, the outer spiral water channel is positioned at the outer side of the inner cavity water channel, the rear spiral water channel is positioned at the rear side of the outer spiral water channel and the inner cavity water channel, and the front end water channel is positioned at the front side of the outer spiral water channel and the inner cavity water channel; the water inlet is communicated with the rear end of the inner cavity water channel through a water inlet pipe, the front end of the inner cavity water channel is communicated with the front end of the outer spiral water channel through a front end water channel, the rear end of the outer spiral water channel is communicated with the front end of the rear spiral water channel, and the rear end of the rear spiral water channel is communicated with the water outlet.
2. The double-layer enhanced cooling tuyere small sleeve of claim 1, wherein: the fluid director comprises a taper sleeve, a front spiral guide ring, a rear spiral guide ring, a plane guide ring and a water baffle, wherein the taper sleeve is arranged at the front half part of the inner cavity; the plane guide ring is arranged at the front end of the taper sleeve, the water baffle is arranged on the front side surface of the plane guide ring, and the edge of the water baffle is tightly matched with the inner wall of the front end of the internal cavity; the rear spiral water channel is positioned at the rear side of the taper sleeve, the outer spiral water channel is positioned at the outer side of the taper sleeve, the inner cavity water channel is positioned at the inner side of the taper sleeve, and the front end water channel is positioned at the front side of the plane guide ring; the taper sleeve separates the outer spiral water channel from the inner cavity water channel; the plane guide ring separates the front end water channel from the external spiral water channel and the inner cavity water channel; the plane water guide ring is provided with a first through hole and a second through hole, the water baffle separates the first through hole from the second through hole, the front end of the inner cavity water channel is communicated with the water inlet end of the front end water channel through the first through hole, and the front end of the outer spiral water channel is communicated with the water outlet end of the front end water channel through the second through hole.
3. The double-layer enhanced cooling tuyere small sleeve of claim 2, wherein: the first through hole and the water inlet pipe are mutually staggered 160-200 degrees in the circumferential direction of the tuyere small sleeve.
4. The double-layer enhanced cooling tuyere small sleeve of claim 2, wherein: the outer side surface of the front part of the rear spiral guide ring is tightly matched with the inner side surface of the outer sleeve, the inner side surface of the front part of the rear spiral guide ring is tightly matched with the outer side surface of the inner sleeve, the outer side surface of the rear part of the rear spiral guide ring is tightly matched with the inner side surface of the outer wall of the flange, and the inner side surface of the rear part of the rear spiral guide ring is tightly matched with the outer side surface of the inner wall of the flange.
5. The double-layer enhanced cooling tuyere small sleeve of claim 4, wherein: at least two middle through holes corresponding to each other in front and back are arranged on the rear spiral guide ring, and the water inlet pipe is positioned in each middle through hole.
6. The double-layer enhanced cooling tuyere small sleeve of claim 2, wherein:
The rear spiral water channel is formed by surrounding the flange, the inner side surface of the rear part of the outer sleeve and the outer side surface of the rear part of the inner sleeve;
The outer spiral water channel is formed by enclosing the outer side surface of the taper sleeve and the inner side surface of the outer sleeve;
The inner cavity water channel is formed by surrounding the inner side surface of the taper sleeve and the outer side surface of the inner sleeve;
The front-end water channel is formed by the front side surface of the plane guide ring and the inner wall of the front end of the inner cavity.
7. The double-layer enhanced cooling tuyere small sleeve of claim 2, wherein: the rotation directions of the front spiral guide ring and the rear spiral guide ring are the same or opposite.
8. The double-layer enhanced cooling tuyere small sleeve of claim 7, wherein: the front spiral guide ring and the rear spiral guide ring are both left spiral or both right spiral.
9. The double-layer enhanced cooling tuyere small sleeve of claim 7, wherein: the front spiral guide ring is a left spiral, and the rear spiral guide ring is a right spiral; or the front spiral guide ring is a right spiral, and the rear spiral guide ring is a left spiral.
10. The double-layer enhanced cooling tuyere small sleeve of claim 1, wherein: the front end of the inner sleeve is connected with the front end of the outer sleeve, and the rear end of the outer sleeve and the rear end of the inner sleeve are fixedly connected with the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323496299.8U CN221544668U (en) | 2023-12-21 | 2023-12-21 | Double-layer reinforced cooling tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323496299.8U CN221544668U (en) | 2023-12-21 | 2023-12-21 | Double-layer reinforced cooling tuyere small sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221544668U true CN221544668U (en) | 2024-08-16 |
Family
ID=92218533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323496299.8U Active CN221544668U (en) | 2023-12-21 | 2023-12-21 | Double-layer reinforced cooling tuyere small sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221544668U (en) |
-
2023
- 2023-12-21 CN CN202323496299.8U patent/CN221544668U/en active Active
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