CN210683826U - Novel through-flow tuyere small sleeve - Google Patents
Novel through-flow tuyere small sleeve Download PDFInfo
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- CN210683826U CN210683826U CN201921759038.1U CN201921759038U CN210683826U CN 210683826 U CN210683826 U CN 210683826U CN 201921759038 U CN201921759038 U CN 201921759038U CN 210683826 U CN210683826 U CN 210683826U
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Abstract
The utility model relates to a novel through-flow tuyere small sleeve, which comprises a flow guiding inner core, a lower shell, an upper shell and an inner tube, wherein the inner tube is inserted into the lower shell and is connected with a bottom plate of the lower shell, the upper shell is covered on the lower shell to coat the inner tube, and the top end of the inner tube is connected with the top end of the upper shell to form a sealed water flow cavity; a sealing flange is arranged between the top of the flow guide inner core and the inner cylinder; the top end surface of the upper shell is provided with a water inlet and a water outlet; the coiled water flow passage is formed on the separated water inlet, water outlet and flow guide inner core, so that the detention time of cooling water in the through-flow air port small sleeve is prolonged, the cooling effect of water is utilized to the maximum extent, the use amount of energy is reduced, the cooling cost is reduced, sufficient cooling is realized, and the service life is prolonged.
Description
Technical Field
The utility model relates to a mechanical equipment technical field, especially a novel through-flow tuyere cover.
Background
The blast furnace tuyere is an important device for supplying air to the steelmaking blast furnace, the through-flow tuyere consists of an outer sleeve, a middle sleeve and a small sleeve, and the small sleeve extends into the furnace, works in a high-temperature environment and is easy to damage, so the through-flow tuyere is very important for the circular cooling of the small sleeve. The basic structure of the existing small sleeve comprises a taper sleeve, an inner cavity of the taper sleeve is an air inlet hole, a water cavity is annularly arranged in the cavity wall of the taper sleeve, a water inlet hole and a water outlet hole which are communicated with the water cavity are formed in the end face of the thick end of the upper shell, circulating water is supplied to the water cavity to cool the air inlet small sleeve, most of cold water can flow out of the water outlet hole after entering the water cavity from the water inlet hole, and therefore water circulation of the water cavity close to the thin end section of the taper sleeve is not smooth, and the cooling effect of the small sleeve is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a novel through-flow tuyere small sleeve, which separates the water inlet and the water outlet to realize uniform cooling.
The embodiment of the utility model provides an in adopt following scheme to realize: the novel through-flow air port small sleeve comprises a flow guide inner core, a lower shell, an upper shell and an inner tube, wherein the inner tube is inserted into the lower shell and is connected with a bottom plate of the lower shell, the upper shell covers the lower shell to coat the inner tube, and the top end of the inner tube is connected with the top end of the upper shell to form a sealed water flow cavity;
the flow guide inner core is sleeved between the lower shell and the inner barrel and comprises a body, a flow guide sheet is coiled on the outer wall of the body from bottom to top, a first check ring is arranged on the periphery of the top of the body, a water inlet notch is formed in the first check ring, a second check ring is arranged on the periphery of the bottom of the body, and a water outlet notch is formed in the second check ring;
a sealing flange is arranged between the top of the flow guide inner core and the inner cylinder; the inner ring of the sealing flange is outwards provided with a gap;
a drainage cavity is arranged on the inner side wall of the upper shell, a water inlet and a water outlet are formed in the top end face of the upper shell, the drainage cavity is in butt joint with the water inlet, and the lower end of the drainage cavity is in butt joint with the notch;
in one embodiment of the present invention, the inner core of the flow guide is a hollow circular truncated cone.
In an embodiment of the present invention, the top of the flow deflector is connected to one side edge of the water inlet notch; the bottommost part of the flow deflector is connected with one side edge in the water outlet notch; the thickness h =5.0mm of the guide vane, and the width w =15mm of the guide vane.
The utility model relates to an in the embodiment, the epitheca with the junction welding of inferior valve, sealing flange with the inner tube with the junction of water conservancy diversion inner core is the welding.
In one embodiment of the present invention, a high temperature wear resistant coating is coated on the front portion of the lower casing.
The utility model has the advantages that: the utility model provides a novel through-flow tuyere small sleeve forms the rivers route of coiling formula on the separated advances, delivery port and water conservancy diversion inner core, increases the dwell time of cooling water in through-flow tuyere small sleeve, and the cooling effect of at utmost utilization water reduces the use amount of the energy, reduces refrigerated cost, realizes abundant cooling, increases life.
Drawings
Fig. 1 is a structural schematic diagram of a novel through-flow tuyere small sleeve.
Fig. 2 is a structural schematic diagram of the novel through-flow tuyere small sleeve with an upper shell removed.
Fig. 3 is a schematic structural diagram of a novel through-flow tuyere small sleeve with an upper shell removed and a sealing flange removed.
Fig. 4 is a structural schematic view of a novel flow-through tuyere small sleeve flow guide inner core.
Fig. 5 is another view angle structure diagram of the novel cross flow tuyere small sleeve flow guiding inner core.
Fig. 6 is a structural schematic diagram of an upper shell of a novel through-flow air port small sleeve.
Fig. 7 is a structural schematic diagram of a novel through-flow tuyere small sleeve sealing flange.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a novel through-flow tuyere small sleeve, which comprises a flow guiding inner core 1, a lower shell 2, an upper shell 4 and an inner tube 3, wherein the inner tube 3 is inserted into the lower shell 2 and connected with a bottom plate of the lower shell 2, the upper shell 4 covers the lower shell 2 to coat the inner tube 3, and the top end of the inner tube 3 is connected with the top end of the upper shell 4 to form a sealed water flow cavity;
the flow guide inner core 1 is sleeved between the lower shell 2 and the inner cylinder 3, the flow guide inner core 1 comprises a body 11, the body 11 is of a hollow round platform-shaped structure, a flow guide sheet 12 is arranged on the outer wall of the body 11 in a winding manner from bottom to top, a first check ring 13 is arranged on the periphery of the top of the body 11, a water inlet notch 15 is formed in the first check ring 13, a second check ring 14 is arranged on the periphery of the bottom of the body, and a water outlet notch 16 is formed in the second check ring 14; a coiled water flow passage is formed, so that the detention time of the cooling water is prolonged, and the characteristic of large specific heat capacity of the cooling water is utilized to the maximum extent, so that the small sleeve is fully cooled;
a sealing flange 5 is arranged between the top of the flow guide inner core 1 and the inner cylinder 3; a notch 51 is formed outwards in the inner ring of the sealing flange 5;
a drainage cavity 45 is formed in the inner side wall of the upper shell 4, a water inlet 41 and a water outlet 42 are formed in the top end face of the upper shell 4, the drainage cavity 45 is in butt joint with the water inlet 41, and the lower end of the drainage cavity 45 is in butt joint with the notch 51; the water inlet and the water outlet are mutually independent, so that the cooling water is fully utilized and cannot flow out from the water outlet just after being introduced.
Referring to fig. 1 to 6, in an embodiment of the present invention, the flow guiding inner core 1, the lower shell 2, the upper shell 4 and the inner cylinder 3 are all hollow circular truncated cone shapes, so that they can be tightly connected when they are fitted with each other.
With continuing reference to fig. 4 and 5, in an embodiment of the present invention, the top of the flow deflector 12 is connected to a side edge of the water inlet notch 15; the bottom of the deflector 12 is connected with one side edge in the water outlet notch 16; the thickness h of the guide vane 12 =5.0mm, and the width w of the guide vane =15 mm.
Referring to fig. 2, in an embodiment of the present invention, the joint between the upper shell 4 and the lower shell 2 is welded, and the joint between the sealing flange and the inner cylinder 3 and the diversion inner core 1 is welded.
Referring to fig. 1, in an embodiment of the present invention, a high temperature wear-resistant coating 21 is coated on the front portion of the lower casing 2; plays a role in wear resistance and high temperature resistance, and prolongs the service life of the through-flow tuyere medium sleeve.
The utility model discloses an in the embodiment, the external diameter of 1 bottom in water conservancy diversion inner core is greater than the internal diameter of 2 bottoms in inferior valve.
The utility model discloses the theory of operation below has:
because the outer diameter of the bottom of the diversion inner core is larger than the inner diameter of the bottom of the lower shell, the bottom end of the diversion inner core cannot be contacted with the bottom plate of the lower shell when the diversion inner core is arranged in the lower shell, and therefore the water outlet notch can be communicated with the outlet water.
The assembled through-flow tuyere small sleeve is arranged at the air inlet end of an air supply and oxygen supply pipeline of an iron-making or steel-making furnace, and pressure gas supplied by the air supply pipeline enters the furnace body through the through-flow tuyere for combustion supporting and the like. The cooling water is introduced from the water inlet of the upper shell and then enters the coiled flow guide cavity formed between the flow guide sheet on the flow guide inner core and the lower shell from the water inlet notch to flow. After the cooling water is spirally circulated (as indicated by arrows in the attached drawings), the cooling water flows out of the water outlet notch, flows into a backflow cavity formed between the flow guide inner core and the inner cylinder, flows out of the notch of the sealing flange, flows into the flow guide cavity and finally flows out of a water outlet on the upper shell. And fully cooling the small sleeve of the through-flow tuyere to prevent the high-temperature gas in the blast furnace from burning out the through-flow tuyere.
The above description is only for the preferred embodiment of the present invention, and should not be interpreted as limiting the scope of the present invention, which is intended to cover all the equivalent changes and modifications made in accordance with the claims of the present invention.
Claims (5)
1. The utility model provides a novel through-flow tuyere tegillum which characterized in that: the inner cylinder is inserted into the lower shell and is connected with a bottom plate of the lower shell, the upper shell covers the lower shell to coat the inner cylinder, and the top end of the inner cylinder is connected with the top end of the upper shell to form a sealed water flow cavity;
the flow guide inner core is sleeved between the lower shell and the inner barrel and comprises a body, a flow guide sheet is coiled on the outer wall of the body from bottom to top, a first check ring is arranged on the periphery of the top of the body, a water inlet notch is formed in the first check ring, a second check ring is arranged on the periphery of the bottom of the body, and a water outlet notch is formed in the second check ring;
a sealing flange is arranged between the top of the flow guide inner core and the inner cylinder; the inner ring of the sealing flange is outwards provided with a gap;
the drainage cavity is arranged on the inner side wall of the upper shell, a water inlet and a water outlet are formed in the top end face of the upper shell, the drainage cavity is in butt joint with the water inlet, and the lower end of the drainage cavity is in butt joint with the notch.
2. The novel cross-flow tuyere small sleeve as claimed in claim 1, wherein: the flow guide inner core, the lower shell, the upper shell and the inner cylinder are all hollow truncated cone shapes.
3. The novel cross-flow tuyere small sleeve as claimed in claim 1, wherein: the topmost part of the flow deflector is connected with one side edge in the water inlet notch; the bottommost part of the flow deflector is connected with one side edge in the water outlet notch; the thickness h =5.0mm of the guide vane, and the width w =15mm of the guide vane.
4. The novel cross-flow tuyere small sleeve as claimed in claim 1, wherein: the joint of the upper shell and the lower shell is welded, and the joint of the sealing flange and the inner cylinder and the diversion inner core is welded.
5. The novel cross-flow tuyere small sleeve as claimed in claim 1, wherein: the front part of the lower shell is coated with a high-temperature wear-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759038.1U CN210683826U (en) | 2019-10-18 | 2019-10-18 | Novel through-flow tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921759038.1U CN210683826U (en) | 2019-10-18 | 2019-10-18 | Novel through-flow tuyere small sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210683826U true CN210683826U (en) | 2020-06-05 |
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ID=70884255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921759038.1U Active CN210683826U (en) | 2019-10-18 | 2019-10-18 | Novel through-flow tuyere small sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210683826U (en) |
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2019
- 2019-10-18 CN CN201921759038.1U patent/CN210683826U/en active Active
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