CN218620898U - Tuyere small sleeve with double-inlet and double-outlet cooling structure - Google Patents
Tuyere small sleeve with double-inlet and double-outlet cooling structure Download PDFInfo
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- CN218620898U CN218620898U CN202220644891.4U CN202220644891U CN218620898U CN 218620898 U CN218620898 U CN 218620898U CN 202220644891 U CN202220644891 U CN 202220644891U CN 218620898 U CN218620898 U CN 218620898U
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Abstract
The utility model discloses a tuyere small sleeve with a double-inlet and double-outlet cooling structure, which comprises a tuyere body, a front-end protecting sleeve, a front-cavity water inlet pipe and a front-cavity water outlet pipe, wherein the tuyere body comprises a flange, an inner sleeve, an outer sleeve and a fluid director; the rear end of the front-end protecting sleeve is connected with the front end face of the tuyere body, the front-end protecting sleeve and the front end face of the tuyere body enclose a front cavity, a front water-stop plate is arranged in the front cavity, and the front cavity is separated by the front water-stop plate to form a front cavity cooling channel; the front end of the tuyere body is provided with a first water inlet pipe mounting hole and a first water outlet pipe mounting hole; the flange is provided with a front cavity water inlet and a front cavity water outlet, the front cavity water inlet pipe is positioned in the first water inlet pipe mounting hole, the front cavity cooling channel water inlet end is communicated with the front cavity water inlet through the front cavity water inlet pipe, the front cavity water outlet pipe is positioned in the first water outlet pipe mounting hole, and the front cavity cooling channel water outlet end is communicated with the front cavity water outlet through the front cavity water outlet pipe. The tuyere small sleeve with the double-inlet and double-outlet cooling structure has the advantages of good cooling effect and long service life.
Description
Technical Field
The utility model relates to a blast furnace cooling device, in particular to a tuyere small sleeve with a double-inlet and double-outlet cooling structure.
Background
The tuyere small sleeve is important equipment necessary for blast furnace ironmaking air supply, is used for feeding hot air into the blast furnace and is positioned in a high-temperature working area at the upper part of a blast furnace hearth. The front end of the tuyere small sleeve extends into the furnace to easily and directly receive thermal shock of liquid slag iron and abrasion of dropped hot materials, and the inner wall of the tuyere is very easily eroded by washing coal powder during air supply, so that the working environment of the tuyere small sleeve of the blast furnace is very severe, frequent blowing down and failure change of the tuyere small sleeve not only can cause production delay and waste of raw materials, but also can directly influence the smooth operation and yield of the blast furnace.
At present, the conventional single-cavity tuyere small sleeve is only provided with one cooling channel inside, and when the tuyere small sleeve fails and leaks water, the tuyere small sleeve needs to be shut down and replaced as soon as possible, so that the service life is short.
Disclosure of Invention
The utility model aims to solve the technical problem that a tuyere small sleeve with double-inlet and double-outlet cooling structure is provided, the cooling effect of the tuyere small sleeve with double-inlet and double-outlet cooling structure is good, and the service life is long. The technical scheme is as follows:
a tuyere small sleeve with a double-inlet and double-outlet cooling structure comprises a tuyere body, wherein the tuyere body comprises a flange, an inner sleeve, an outer sleeve and a fluid director, the outer sleeve is sleeved outside the inner sleeve, the outer sleeve, the inner sleeve and the flange enclose a rear cavity, the fluid director is arranged in the rear cavity, and the rear cavity is divided by the fluid director to form a rear cavity cooling channel; the flange is provided with a rear cavity water inlet and a rear cavity water outlet, the water inlet end of the rear cavity cooling channel is communicated with the rear cavity water inlet, and the water outlet end of the rear cavity cooling channel is communicated with the rear cavity water outlet; the method is characterized in that: the front-end protecting sleeve, the front-cavity water inlet pipe and the front-cavity water outlet pipe are also included; the rear end of the front-end protecting sleeve is connected with the front end face of the tuyere body, the front-end protecting sleeve and the front end face of the tuyere body enclose a front cavity, a front water-stop plate is arranged in the front cavity, the front cavity is separated by the front water-stop plate to form a front cavity cooling channel, and the front cavity cooling channel and the rear cavity cooling channel are not communicated with each other; the front end of the tuyere body is provided with a first water inlet pipe mounting hole and a first water outlet pipe mounting hole; the flange is provided with a front cavity water inlet and a front cavity water outlet, the front cavity water inlet pipe is positioned in the first water inlet pipe mounting hole, the front cavity cooling channel water inlet end is communicated with the front cavity water inlet through the front cavity water inlet pipe, the front cavity water outlet pipe is positioned in the first water outlet pipe mounting hole, and the front cavity cooling channel water outlet end is communicated with the front cavity water outlet through the front cavity water outlet pipe.
The front cavity cooling channel and the rear cavity cooling channel are not communicated with each other, and are supplied with water independently without mutual influence.
The inner side wall of the rear end of the front-end protecting sleeve and the front end face of the tuyere body enclose a front cavity, the front cavity is divided into a front cavity cooling channel by arranging a front water-stop plate, so that the front cavity cooling channel has a structure of inlet and outlet, cooling water in the front cavity cooling channel flows in a ring shape, the front-end protecting sleeve and the front end of the tuyere body can be contacted with the cooling water, and cooling is more uniform; the outer sleeve, the inner sleeve and the flange enclose a rear cavity, and the rear cavity is divided into a rear cavity cooling channel by the aid of the flow guider, so that the outer sleeve and the inner sleeve can be contacted with cooling water and are cooled by the cooling water. The front cavity and the rear cavity are of two cavity structures which are independent from each other and supply water, so that the front cavity cooling channel and the rear cavity cooling channel are independent from each other and are filled with cooling water for cooling (wherein, the cooling water enters from a front cavity water inlet on the flange, enters the front cavity cooling channel through a front cavity water inlet pipe, and flows through the front cavity cooling channel and then is discharged from a tuyere small sleeve through a front cavity water outlet pipe and a front cavity water outlet).
The front cavity water inlet pipe and the front cavity water outlet pipe are positioned in the rear cavity, but are not communicated with the inside of the rear cavity, and the front cavity water inlet pipe and the front cavity water outlet pipe can be surrounded by cooling water in the rear cavity. When the cooling water cooling device works normally, the cooling water introduced into the front cavity cannot contact the inner wall and the outer wall of the rear cavity to carry out heat exchange, so that the cooling water introduced into the front cavity has lower temperature, and the cooling effect of the front cavity is ensured. When the front cavity is burnt out (for example, the front-end protecting sleeve is damaged, or the connecting part between the front-end protecting sleeve and the front end face of the tuyere body is cracked), the water of the front cavity can be cut off only by closing the front-cavity water inlet and the front-cavity water outlet, because the front-cavity water inlet pipe and the front-cavity water outlet pipe are arranged inside the rear cavity, but the front-cavity water inlet pipe and the front-cavity water outlet pipe are not communicated with each other with the inside of the rear cavity, the rear cavity can still be normally filled with cooling water for cooling, and the tuyere small sleeve can still continue to work.
In the preferred scheme, the front end of the inner sleeve is connected with the front end of the outer sleeve through a first annular welding seam, the rear end of the outer sleeve is connected with the front end of the flange through a second annular welding seam, and the rear end of the inner sleeve is connected with the front end of the flange through a third annular welding seam; the rear end of the outer side surface of the front-end protecting sleeve is connected with the outer edge of the front end surface of the outer sleeve through a fourth annular welding line, the rear end of the inner side surface of the front-end protecting sleeve is connected with the inner edge of the front end surface of the outer sleeve through a fifth annular welding line, and the first water inlet pipe mounting hole and the first water outlet pipe mounting hole are both arranged at the front end of the outer sleeve; the front-end protecting sleeve is internally provided with an annular water tank with a backward opening, and the front end surface of the tuyere body and the inner wall of the annular water tank jointly enclose a front cavity; the front water-stop sheet is arranged on the front end face of the jacket, the edge of the front water-stop sheet is tightly matched with the inner wall of the annular water tank, and the front water-stop sheet separates the water inlet end of the front cavity cooling channel from the water outlet end of the front cavity cooling channel.
In a preferred scheme, the fluid director comprises an annular partition plate, a middle partition plate, a water outlet partition plate, a rear water partition plate and at least one rotational flow water partition plate, wherein the annular partition plate is arranged at the front end of the middle partition plate, each rotational flow water partition plate is arranged on the outer side surface of the middle partition plate, the water outlet partition plate is arranged at the rear end of the middle partition plate, the rear water partition plate is arranged on the front side surface of the annular partition plate, and the edge of the rear water partition plate is tightly matched with the inner wall of the front end of the rear cavity; the rear cavity is divided into an annular inner water chamber, an annular end water chamber, an annular water outlet chamber and at least one annular outer water chamber by the fluid director, the annular inner water chamber is positioned on the inner side of the middle partition plate, the annular end water chamber is positioned on the front side of the annular partition plate, the annular water outlet chamber is positioned on the rear side of the water outlet partition plate, and each annular outer water chamber is positioned on the outer side of the middle partition plate; the rear water baffle plate separates the water inlet end of the water chamber at the annular end part from the water outlet end of the water chamber at the annular end part, the annular partition plate separates the water chamber at the annular end part from the annular inner water chamber and each annular outer water chamber, the middle partition plate separates the annular inner water chamber from each annular outer water chamber, the rotational flow water baffle plate separates two adjacent annular outer water chambers, and the water outlet partition plate separates the annular water outlet chamber from the annular inner water chamber and each annular outer water chamber; the water inlet of the rear cavity is communicated with the water inlet of the annular inner water chamber through the water inlet pipe of the rear cavity, the annular partition plate is provided with a water through hole for communicating the water outlet end of the annular inner water chamber with the front end of the annular end water chamber, the water outlet end of the annular end water chamber is communicated with the water inlet end of the annular outer water chamber positioned at the foremost end, two adjacent annular outer water chambers are communicated with each other, the water outlet end of the annular outer water chamber at the rearmost end is communicated with the annular water outlet chamber, and the annular water outlet chamber is communicated with the water outlet of the rear cavity; the annular end water chamber and each annular outer water chamber are communicated in sequence to form a spiral cooling water channel to form a spiral-flow type structure; a second water inlet pipe mounting hole and a second water outlet pipe mounting hole are formed in the annular partition plate, a third water inlet pipe mounting hole and a third water outlet pipe mounting hole are formed in the water outlet partition plate, and the second water inlet pipe mounting hole, the second water outlet pipe mounting hole, the third water inlet pipe mounting hole and the third water outlet pipe mounting hole are all located on the inner side of the middle partition plate (namely the front cavity water inlet pipe and the front cavity water outlet pipe penetrate through the annular inner water chamber); the positions of the holes of the third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole correspond from back to front, and the positions of the holes of the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole correspond from back to front; the front cavity water inlet pipe is sequentially positioned in the front cavity water inlet, the third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole from back to front, and the front cavity water outlet pipe is sequentially positioned in the front cavity water outlet, the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole from back to front. Through the arrangement, the cooling water of the rear cavity passes through the water inlet pipe of the rear cavity, and the cooling water is firstly guided into the annular end water chamber which can bear the highest heat load of the whole rear cavity after the front cavity fails, and after the cooling water rotates for a circle in the annular end water chamber, the cooling water sequentially enters the annular outer water chambers, so that the cooling water flows spirally in the annular outer water chambers, and finally the cooling water flows out of the annular water outlet chamber to the water outlet of the rear cavity to form completely independent cooling water circulation of the rear cavity. This kind of back chamber cooling water circulation can avoid the inside stagnant water district that produces of back chamber, can evenly cool off for the velocity of flow of cooling water can be controlled to back chamber cooling channel, thereby provides the inside cooling effect of back chamber.
Usually, the inner diameter of the front cavity water inlet is larger than the inner diameters of the third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole, and the inner diameter of the front cavity water outlet is larger than the inner diameters of the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole. The third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole are consistent in shape and size; the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole are consistent in shape and size. Thus, the assembly of the front cavity water inlet pipe, the front cavity water outlet pipe, the fluid director, the outer sleeve and the like is easier.
In a more preferred scheme, the rear water-proof plate is arranged between the second water inlet pipe mounting hole and the second water outlet pipe mounting hole, and the limber hole is arranged on one side where the second water inlet pipe mounting hole is arranged or on one side where the second water outlet pipe mounting hole is arranged. In a specific scheme, under the condition that the water through hole is positioned at one side of the mounting hole of the second water inlet pipe, the water through hole is communicated with the mounting hole of the second water inlet pipe (a strip-shaped hole can be processed on the annular partition plate, one part of the strip-shaped hole forms the water through hole, and the other part of the strip-shaped hole forms the mounting hole of the second water inlet pipe); and under the condition that the water through hole is positioned at one side of the second water outlet pipe mounting hole, the water through hole is communicated with the second water outlet pipe mounting hole (a strip-shaped hole can be processed on the annular partition plate, one part of the strip-shaped hole forms the water through hole, and the other part of the strip-shaped hole forms the second water outlet pipe mounting hole).
In a further preferable scheme, under the condition that the water through hole is positioned at one side of the second water inlet pipe mounting hole, the second water inlet pipe mounting hole is positioned between the water through hole and the rear water-stop plate, and the second water outlet pipe mounting hole is arranged at the transition connection position of the most front swirl water-stop plate and the annular partition plate; and under the condition that the limber hole is positioned at one side of the second water outlet pipe mounting hole, the second water outlet pipe mounting hole is positioned between the limber hole and the rear water-stop plate, and the second water inlet pipe mounting hole is arranged at the transitional connection part of the most front swirl water-stop plate and the annular partition plate. Because antechamber inlet tube, antechamber outlet pipe pass annular tip hydroecium to antechamber inlet tube, antechamber outlet pipe position logical water area are fairly little in the annular tip hydroecium, can cause the cooling water to flow not smooth, consequently, through setting up second inlet tube mounting hole, second outlet pipe mounting hole suitable position more than, can make the cooling water avoid antechamber inlet tube, antechamber outlet pipe in annular tip hydroecium, ensure that the cooling water smoothly flows.
In another more preferable scheme, the limbers are located on one side of the rear water-proof plate, and the mounting holes of the second water inlet pipe and the second water outlet pipe are located on the other side of the rear water-proof plate.
In a further preferable scheme, the second water inlet pipe mounting hole and the second water outlet pipe mounting hole are both arranged at the transition connection position of the most front end swirl water-stop plate and the annular partition plate. Because antechamber inlet tube, antechamber outlet pipe pass annular tip hydroecium to antechamber inlet tube, antechamber outlet pipe position logical water area are fairly little in the annular tip hydroecium, can cause the cooling water to flow not smooth, consequently, through setting up second inlet tube mounting hole, second outlet pipe mounting hole suitable position more than, can make the cooling water avoid antechamber inlet tube, antechamber outlet pipe in annular tip hydroecium, ensure that the cooling water smoothly flows.
Compared with the prior art, the utility model, have following advantage:
the tuyere small sleeve with the double-inlet and double-outlet cooling structure has the advantages of good cooling effect and longer service life.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of the rear water-stop plate of FIG. 1 between the mounting holes of the second water inlet pipe and the second water outlet pipe;
FIG. 3 is a schematic structural diagram of the second water outlet pipe mounting hole in FIG. 2 arranged at the transition joint of the most front cyclone water-stop plate and the annular partition plate;
fig. 4 is a schematic structural view of a preferred embodiment 2 of the present invention;
fig. 5 is a schematic structural view of the transitional connection between the swirling flow water-stop plate and the annular partition plate in which the second water inlet pipe mounting hole and the second water outlet pipe mounting hole are both arranged at the foremost end in fig. 4.
Detailed Description
The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, the tuyere small sleeve with a double-inlet and double-outlet cooling structure in the present embodiment includes a tuyere body 1, a front-end protecting sleeve 2, a front-cavity water inlet pipe 3, and a front-cavity water outlet pipe 4; the tuyere body 1 comprises a flange 11, an inner sleeve 12, an outer sleeve 13 and a fluid director 14, wherein the outer sleeve 13 is sleeved outside the inner sleeve 12, the outer sleeve 13, the inner sleeve 12 and the flange 11 enclose a rear cavity 15, the fluid director 14 is arranged in the rear cavity 15, and the rear cavity 15 is divided by the fluid director 14 to form a rear cavity cooling channel 16; a rear cavity water inlet 17 and a rear cavity water outlet (not marked in the figure) are arranged on the flange 11, the water inlet end of the rear cavity cooling channel 16 is communicated with the rear cavity water inlet 17, and the water outlet end of the rear cavity cooling channel 16 is communicated with the rear cavity water outlet; the rear end of the front-end protecting sleeve 2 is connected with the front end face 18 of the tuyere body 1, the front-end protecting sleeve 2 and the front end face 18 of the tuyere body 1 enclose a front cavity 21, a front water-stop plate 23 is arranged in the front cavity 21, the front cavity 21 is divided by the front water-stop plate 23 to form a front cavity cooling channel 22, and the front cavity cooling channel 22 is not communicated with the rear cavity cooling channel 16; a first inlet pipe mounting hole 131 and a first outlet pipe mounting hole 132 are formed in the front end of the tuyere body 1; the flange 11 is provided with a front cavity water inlet 111 and a front cavity water outlet 112, the front cavity water inlet pipe 3 is positioned in the first water inlet pipe mounting hole 131, the water inlet end of the front cavity cooling channel 22 is communicated with the front cavity water inlet 111 through the front cavity water inlet pipe 3, the front cavity water outlet pipe 4 is positioned in the first water outlet pipe mounting hole 132, and the water outlet end of the front cavity cooling channel 22 is communicated with the front cavity water outlet 112 through the front cavity water outlet pipe 4.
The front cavity cooling channel 22 and the rear cavity cooling channel 16 are not communicated with each other, and are supplied with water independently without affecting each other.
A front cavity 21 is defined by the inner side wall of the rear end of the front end protecting sleeve 2 and the front end surface 18 of the tuyere body 1, the front cavity 21 is divided into a front cavity cooling channel 22 by arranging a front water-stop sheet 23, so that the front cavity cooling channel 22 has a structure of inlet and outlet, and cooling water in the front cavity cooling channel 22 flows annularly, so that the front ends of the front end protecting sleeve 2 and the tuyere body 1 can be contacted with the cooling water, and the cooling is more uniform; the outer sleeve 13, the inner sleeve 12 and the flange 11 enclose a rear cavity 15, and the rear cavity 15 is divided into a rear cavity cooling channel 16 by arranging the fluid director 14, so that the outer sleeve 13 and the inner sleeve 12 can be contacted with cooling water and are cooled by the cooling water. The front cavity 21 and the rear cavity 15 are two cavity structures which supply water independently, so that the front cavity cooling channel 22 and the rear cavity cooling channel 16 are cooled by cooling water independently (wherein, the cooling water enters from the front cavity water inlet 111 on the flange 11, enters the front cavity cooling channel 22 through the front cavity water inlet pipe 3, and flows through the front cavity cooling channel 22 and then is discharged out of the tuyere small sleeve through the front cavity water outlet pipe 4 and the front cavity water outlet 112).
The front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 are positioned in the rear cavity 15, but are not mutually communicated with the inside of the rear cavity 15, and the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 can be surrounded by cooling water in the rear cavity 15. During normal operation, the cooling water introduced into the front cavity 21 does not contact the inner and outer walls of the rear cavity 15 to exchange heat, so that the cooling water introduced into the front cavity 21 has a lower temperature, and the cooling effect of the front cavity 21 is ensured. When the front cavity 21 is burnt (for example, the front-end protecting sleeve 2 is damaged, or the connecting part between the front-end protecting sleeve 2 and the front end face 18 of the tuyere body 1 is cracked), the front cavity 21 can be cut off by only closing the front-cavity water inlet 111 and the front-cavity water outlet 112, because the front-cavity water inlet pipe 3 and the front-cavity water outlet pipe 4 are arranged inside the rear cavity 15, but the front-cavity water inlet pipe and the front-cavity water outlet pipe are not communicated with the inside of the rear cavity 15, the rear cavity 15 can still be normally filled with cooling water for cooling, and the tuyere small sleeve can still continue to work.
The front end of the inner sleeve 12 is connected with the front end of the outer sleeve 13 through a first annular welding seam 5, the rear end of the outer sleeve 13 is connected with the front end of the flange 11 through a second annular welding seam 6, and the rear end of the inner sleeve 12 is connected with the front end of the flange 11 through a third annular welding seam 7; the rear end of the outer side surface of the front-end protecting sleeve 2 is connected with the outer edge of the front end surface 18 of the outer sleeve 13 through a fourth annular welding line 8, the rear end of the inner side surface of the front-end protecting sleeve 2 is connected with the inner edge of the front end surface 18 of the outer sleeve 13 through a fifth annular welding line 9, and the first water inlet pipe mounting hole 131 and the first water outlet pipe mounting hole 132 are both arranged at the front end of the outer sleeve 13; an annular water tank 24 with a backward opening is arranged in the front-end protecting sleeve 2, and the front end surface 18 of the tuyere body 1 and the inner wall of the annular water tank 24 jointly enclose the front cavity 21; the front water-stop plate 23 is arranged on the front end face 18 of the outer sleeve 13, the edge of the front water-stop plate 23 is tightly matched with the inner wall of the annular water tank 24, and the front water-stop plate 23 separates the water inlet end of the front cavity cooling channel 22 from the water outlet end of the front cavity cooling channel 22.
The fluid director 14 comprises an annular clapboard 141, a middle clapboard 142, a water outlet clapboard 143, a rear water baffle 144 and two rotational flow water baffles 145, the annular clapboard 141 is arranged at the front end of the middle clapboard 142, each rotational flow water baffle 145 is arranged on the outer side surface of the middle clapboard 142, the water outlet clapboard 143 is arranged at the rear end of the middle clapboard 142, the rear water baffle 144 is arranged on the front side surface of the annular clapboard 141, and the edge of the rear water baffle 144 is tightly matched with the inner wall of the front end of the rear cavity 15; the fluid director 14 divides the rear cavity 15 into an annular inner water chamber 151, an annular end water chamber 152, an annular water outlet chamber 153 and three annular outer water chambers 154, wherein the annular inner water chamber 151 is positioned at the inner side of the middle partition 142, the annular end water chamber 152 is positioned at the front side of the annular partition 141, the annular water outlet chamber 153 is positioned at the rear side of the water outlet partition 143, and each annular outer water chamber 154 is positioned at the outer side of the middle partition 142; the rear water partition plate 144 partitions the water inlet end of the annular end water chamber 152 from the water outlet end of the annular end water chamber 152, the annular partition plate 141 partitions the annular end water chamber 152 from the annular inner water chamber 151 and each annular outer water chamber 154, the middle partition plate 142 partitions the annular inner water chamber 151 from each annular outer water chamber 154, the cyclone water partition plate 145 partitions two adjacent annular outer water chambers 154, and the water outlet partition plate 143 partitions the annular water outlet chamber 153 from the annular inner water chamber 151 and each annular outer water chamber 154; the rear cavity water inlet 17 is communicated with a water inlet of the annular inner water chamber 151 through a rear cavity water inlet pipe 171, a water through hole 1411 for communicating a water outlet end of the annular inner water chamber 151 with the front end of the annular end water chamber 152 is formed in the annular partition plate 141, the water outlet end of the annular end water chamber 152 is communicated with a water inlet end of the annular outer water chamber 154 at the foremost end, two adjacent annular outer water chambers 154 are communicated with each other, the water outlet end of the annular outer water chamber 154 at the rearmost end is communicated with the annular water outlet chamber 153, and the annular water outlet chamber 153 is communicated with a rear cavity water outlet; the annular end water chamber 152 and each annular outer water chamber 154 are sequentially communicated to form a spiral cooling water channel, so that a spiral-flow type structure is formed; a second water inlet pipe mounting hole 1412 and a second water outlet pipe mounting hole 1413 are formed in the annular partition plate 141, a third water inlet pipe mounting hole 1431 and a third water outlet pipe mounting hole 1432 are formed in the water outlet partition plate 143, and the second water inlet pipe mounting hole 1412, the second water outlet pipe mounting hole 1413, the third water inlet pipe mounting hole 1431 and the third water outlet pipe mounting hole 1432 are all located on the inner side of the middle partition plate 142 (namely, the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 penetrate through the annular inner water chamber 151); the hole positions of the third water inlet pipe mounting hole 1431, the second water inlet pipe mounting hole 1412 and the first water inlet pipe mounting hole 131 correspond from back to front, and the hole positions of the third water outlet pipe mounting hole 1432, the second water outlet pipe mounting hole 1413 and the first water outlet pipe mounting hole 132 correspond from back to front; the front cavity water inlet pipe 3 is sequentially positioned in the front cavity water inlet 111, the third water inlet pipe mounting hole 1431, the second water inlet pipe mounting hole 1412 and the first water inlet pipe mounting hole 131 from back to front, and the front cavity water outlet pipe 4 is sequentially positioned in the front cavity water outlet 112, the third water outlet pipe mounting hole 1432, the second water outlet pipe mounting hole 1413 and the first water outlet pipe mounting hole 132 from back to front. With this arrangement, the cooling water in the rear cavity 15 passes through the rear cavity water inlet tube 171 from the rear cavity water inlet 17, and then is guided into the annular end water chamber 152, which will bear the highest heat load of the whole rear cavity 15 after the failure of the front cavity 21, via the annular inner water chamber 151, and after the cooling water swirls for a circle in the annular end water chamber 152, the cooling water sequentially enters the annular outer water chambers 154, so that the cooling water spirally flows in the annular outer water chambers 154, and finally the cooling water flows out of the annular water outlet chamber 153 to the rear cavity water outlet, thereby forming a completely independent rear cavity cooling water circulation. This kind of back chamber cooling water circulation can avoid the inside stagnant water district that produces of back chamber 15, can evenly cool off for the velocity of flow of cooling water can be controlled to back chamber cooling channel 16, thereby provides the inside cooling effect of back chamber 15.
Generally, the inner diameter of the front cavity water inlet 111 is larger than the inner diameters of the third water inlet pipe mounting hole 1431, the second water inlet pipe mounting hole 1412 and the first water inlet pipe mounting hole 131, and the inner diameter of the front cavity water outlet 112 is larger than the inner diameters of the third water outlet pipe mounting hole 1432, the second water outlet pipe mounting hole 1413 and the first water outlet pipe mounting hole 132. The third inlet pipe mounting hole 1431, the second inlet pipe mounting hole 1412 and the first inlet pipe mounting hole 131 are identical in shape and size; third outlet pipe mounting hole 1432, second outlet pipe mounting hole 1413, and first outlet pipe mounting hole 132 are identical in shape and size. Thus, the assembly of the front cavity water inlet pipe 3, the front cavity water outlet pipe 4, the fluid director 14, the outer sleeve 13 and the like is easier.
The rear water-isolating plate 144 is positioned between the second water inlet pipe mounting hole 1412 and the second water outlet pipe mounting hole 1413, and the water through hole 1411 is positioned at one side of the second water inlet pipe mounting hole 1412. In the case where the water passage hole 1411 is formed at the side of the second inlet pipe mounting hole 1412, the water passage hole 1411 communicates with the second inlet pipe mounting hole 1412 (a strip-shaped hole 1414 may be formed in the annular partition 141, and a part of the strip-shaped hole 1414 constitutes the water passage hole 1411 and the other part constitutes the second inlet pipe mounting hole 1412).
Under the condition that the water through hole 1411 is located on one side of the second water inlet pipe mounting hole 1412, the second water inlet pipe mounting hole 1412 is located between the water through hole 1411 and the rear water partition plate 144, and the second water outlet pipe mounting hole 1413 is arranged at a transition joint 1416 of the foremost swirl water partition plate 145 and the annular partition plate 141. Because the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 penetrate through the annular end water chamber 152, the water passing area of the positions of the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 in the annular end water chamber 152 is quite small, and the cooling water can not flow smoothly, the cooling water can be enabled to avoid the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 in the annular end water chamber 152 by arranging the second water inlet pipe mounting hole 1412 and the second water outlet pipe mounting hole 1413 at the above proper positions, and the smooth flowing of the cooling water is ensured.
Example 2
As shown in fig. 4 to 5, the tuyere small sleeve having the double-in double-out cooling structure in the present embodiment is different from embodiment 1 in that:
the water through hole 1411 is located at one side of the rear water-separating plate 144, and the second water inlet pipe mounting hole 1412 and the second water outlet pipe mounting hole 1413 are located at the other side of the rear water-separating plate 144. The second inlet pipe mounting hole 1412 and the second outlet pipe mounting hole 1413 are both arranged at a transition connection 1416 of the foremost cyclone water-stop plate 145 and the annular partition 141. Because the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 penetrate through the annular end water chamber 152, the water passing area of the positions of the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 in the annular end water chamber 152 is quite small, and cooling water can not flow smoothly, the cooling water can avoid the front cavity water inlet pipe 3 and the front cavity water outlet pipe 4 in the annular end water chamber 152 by arranging the second water inlet pipe mounting hole 1412 and the second water outlet pipe mounting hole 1413 at the above proper positions, and the smooth flowing of the cooling water is ensured.
In addition, it should be noted that the names of the various parts of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structures, characteristics and principles of the present invention are included in the protection scope of the present invention. Those skilled in the art can modify or supplement the described embodiments or substitute them in a similar manner without departing from the scope of the invention as defined by the claims.
Claims (8)
1. A tuyere small sleeve with a double-inlet and double-outlet cooling structure comprises a tuyere body, wherein the tuyere body comprises a flange, an inner sleeve, an outer sleeve and a fluid director, the outer sleeve is sleeved outside the inner sleeve, the outer sleeve, the inner sleeve and the flange enclose a rear cavity, the fluid director is arranged in the rear cavity, and the rear cavity is divided by the fluid director to form a rear cavity cooling channel; the flange is provided with a rear cavity water inlet and a rear cavity water outlet, the water inlet end of the rear cavity cooling channel is communicated with the rear cavity water inlet, and the water outlet end of the rear cavity cooling channel is communicated with the rear cavity water outlet; the method is characterized in that: the front-end protecting sleeve, the front-cavity water inlet pipe and the front-cavity water outlet pipe are also included; the rear end of the front-end protecting sleeve is connected with the front end face of the tuyere body, the front-end protecting sleeve and the front end face of the tuyere body enclose a front cavity, a front water-stop plate is arranged in the front cavity, the front cavity is separated by the front water-stop plate to form a front cavity cooling channel, and the front cavity cooling channel is not communicated with the rear cavity cooling channel; the front end of the tuyere body is provided with a first water inlet pipe mounting hole and a first water outlet pipe mounting hole; the flange is provided with a front cavity water inlet and a front cavity water outlet, the front cavity water inlet pipe is positioned in the first water inlet pipe mounting hole, the front cavity cooling channel water inlet end is communicated with the front cavity water inlet through the front cavity water inlet pipe, the front cavity water outlet pipe is positioned in the first water outlet pipe mounting hole, and the front cavity cooling channel water outlet end is communicated with the front cavity water outlet through the front cavity water outlet pipe.
2. The tuyere stock with a double-in and double-out cooling structure of claim 1, wherein: the front end of the inner sleeve is connected with the front end of the outer sleeve through a first annular welding seam, the rear end of the outer sleeve is connected with the front end of the flange through a second annular welding seam, and the rear end of the inner sleeve is connected with the front end of the flange through a third annular welding seam; the rear end of the outer side surface of the front-end protecting sleeve is connected with the outer edge of the front end surface of the outer sleeve through a fourth annular welding line, the rear end of the inner side surface of the front-end protecting sleeve is connected with the inner edge of the front end surface of the outer sleeve through a fifth annular welding line, and the first water inlet pipe mounting hole and the first water outlet pipe mounting hole are both arranged at the front end of the outer sleeve; an annular water tank with a backward opening is arranged in the front-end protecting sleeve, and the front end surface of the tuyere body and the inner wall of the annular water tank jointly enclose a front cavity; the front water-stop sheet is arranged on the front end face of the outer sleeve, the edge of the front water-stop sheet is tightly matched with the inner wall of the annular water tank, and the front water-stop sheet separates the water inlet end of the front cavity cooling channel from the water outlet end of the front cavity cooling channel.
3. The tuyere stock with a double-in and double-out cooling structure of claim 1, wherein: the fluid director comprises an annular partition plate, a middle partition plate, a water outlet partition plate, a rear water partition plate and at least one rotational flow water partition plate, wherein the annular partition plate is arranged at the front end of the middle partition plate, each rotational flow water partition plate is arranged on the outer side surface of the middle partition plate, the water outlet partition plate is arranged at the rear end of the middle partition plate, the rear water partition plate is arranged on the front side surface of the annular partition plate, and the edge of the rear water partition plate is tightly matched with the inner wall of the front end of the rear cavity; the rear cavity is divided into an annular inner water chamber, an annular end water chamber, an annular water outlet chamber and at least one annular outer water chamber by the fluid director, the annular inner water chamber is positioned on the inner side of the middle partition plate, the annular end water chamber is positioned on the front side of the annular partition plate, the annular water outlet chamber is positioned on the rear side of the water outlet partition plate, and each annular outer water chamber is positioned on the outer side of the middle partition plate; the rear water baffle plate separates the water inlet end of the water chamber at the annular end part from the water outlet end of the water chamber at the annular end part, the annular partition plate separates the water chamber at the annular end part from the annular inner water chamber and each annular outer water chamber, the middle partition plate separates the annular inner water chamber from each annular outer water chamber, the rotational flow water baffle plate separates two adjacent annular outer water chambers, and the water outlet partition plate separates the annular water outlet chamber from the annular inner water chamber and each annular outer water chamber; the water inlet of the rear cavity is communicated with the water inlet of the annular inner water chamber through a rear cavity water inlet pipe, the annular partition plate is provided with a water through hole for communicating the water outlet end of the annular inner water chamber with the front end of the annular end water chamber, the water outlet end of the annular end water chamber is communicated with the water inlet end of the annular outer water chamber at the foremost end, two adjacent annular outer water chambers are communicated with each other, the water outlet end of the annular outer water chamber at the rearmost end is communicated with the annular water outlet chamber, and the annular water outlet chamber is communicated with the rear cavity water outlet; the annular end water chamber and each annular outer water chamber are sequentially communicated to form a spiral cooling water channel to form a spiral-flow type structure; the annular partition plate is provided with a second water inlet pipe mounting hole and a second water outlet pipe mounting hole, the water outlet partition plate is provided with a third water inlet pipe mounting hole and a third water outlet pipe mounting hole, and the second water inlet pipe mounting hole, the second water outlet pipe mounting hole, the third water inlet pipe mounting hole and the third water outlet pipe mounting hole are all positioned on the inner side of the middle partition plate; the positions of the holes of the third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole correspond from back to front, and the positions of the holes of the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole correspond from back to front; the front cavity water inlet pipe is sequentially positioned in the front cavity water inlet, the third water inlet pipe mounting hole, the second water inlet pipe mounting hole and the first water inlet pipe mounting hole from back to front, and the front cavity water outlet pipe is sequentially positioned in the front cavity water outlet, the third water outlet pipe mounting hole, the second water outlet pipe mounting hole and the first water outlet pipe mounting hole from back to front.
4. The tuyere stock with a double-in and double-out cooling structure of claim 3, wherein: the rear water-proof plate is arranged between the second water inlet pipe mounting hole and the second water outlet pipe mounting hole, and the water through hole is arranged on one side where the second water inlet pipe mounting hole is arranged or one side where the second water outlet pipe mounting hole is arranged.
5. The tuyere stock with a double-in and double-out cooling structure of claim 4, wherein: under the condition that the water through hole is positioned at one side of the second water inlet pipe mounting hole, the water through hole is communicated with the second water inlet pipe mounting hole; and under the condition that the limber hole is positioned at one side of the second water outlet pipe mounting hole, the limber hole is communicated with the second water outlet pipe mounting hole.
6. The tuyere stock with a double-in and double-out cooling structure of claim 4, wherein: under the condition that the limber hole is positioned at one side of the second water inlet pipe mounting hole, the second water inlet pipe mounting hole is positioned between the limber hole and the rear water-stop plate, and the second water outlet pipe mounting hole is arranged at the transition connection position of the most front swirl water-stop plate and the annular partition plate; and under the condition that the limber hole is positioned at one side of the second water outlet pipe mounting hole, the second water outlet pipe mounting hole is positioned between the limber hole and the rear water-stop plate, and the second water inlet pipe mounting hole is arranged at the transitional connection part of the most front rotational flow water-stop plate and the annular partition plate.
7. The tuyere stock with a double-in and double-out cooling structure of claim 3, wherein: the limbers are located on one side of the rear water-proof plate, and the second water inlet pipe mounting holes and the second water outlet pipe mounting holes are located on the other side of the rear water-proof plate.
8. The tuyere stock with a double-in and double-out cooling structure of claim 7, wherein: and the second water inlet pipe mounting hole and the second water outlet pipe mounting hole are both arranged at the transition connection part of the most front end swirl water-stop plate and the annular partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220644891.4U CN218620898U (en) | 2022-03-24 | 2022-03-24 | Tuyere small sleeve with double-inlet and double-outlet cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220644891.4U CN218620898U (en) | 2022-03-24 | 2022-03-24 | Tuyere small sleeve with double-inlet and double-outlet cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218620898U true CN218620898U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220644891.4U Active CN218620898U (en) | 2022-03-24 | 2022-03-24 | Tuyere small sleeve with double-inlet and double-outlet cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218620898U (en) |
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2022
- 2022-03-24 CN CN202220644891.4U patent/CN218620898U/en active Active
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