CN115748288A - Steam guide structure of drying cylinder - Google Patents
Steam guide structure of drying cylinder Download PDFInfo
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- CN115748288A CN115748288A CN202211673270.XA CN202211673270A CN115748288A CN 115748288 A CN115748288 A CN 115748288A CN 202211673270 A CN202211673270 A CN 202211673270A CN 115748288 A CN115748288 A CN 115748288A
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- drying cylinder
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- 238000001035 drying Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention aims to provide a steam guide structure of a drying cylinder, which comprises the drying cylinder and a steam pipeline inserted into the drying cylinder, wherein a drain pipe is inserted into the steam pipeline, a flow distribution mechanism is arranged on the steam pipeline, the flow distribution mechanism comprises a flange and at least two openings A arranged on the flange, and steam sprayed out of the steam pipeline can be directly sprayed into an inner cavity of the drying cylinder through a gap and/or enters a branch pipe through the openings A and is sprayed into the edges of two ends of the inner cavity of the drying cylinder. The invention relates to the technical field of papermaking, and discloses a steam guide structure of a drying cylinder.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a steam guide structure of a drying cylinder.
Background
The paper making dryer is a system in which a plurality of dryers are combined to perform drying processing while conveying wet paper, and the outer surface of the dryer is heated by steam to evaporate water in the paper.
The drying in the prior art is summarized and explained as follows:
when the steam conveying works, steam enters the pipeline by the steam and is directly sprayed into the drying cylinder, and although the steam is in a steam form and can be dispersed to all corners in the drying cylinder through the internal turbulence bar structure, the problem of temperature difference between two ends and the center is solved. The reason is that the temperature of the center is at the maximum value after the steam is sprayed out, and when the steam is dispersed by the turbulence bars and then is diffused to other parts, the temperature is reduced along with the increase of the diffusion range, and the temperature difference between the center of the surface of the drying cylinder and the two ends is different directly. Under the condition that the temperature difference exists, the surface of the paper is heated unevenly when the paper passes through, and the difference between the moisture at the two ends with low temperature and the moisture at the center is different, so that the warping of the paper is serious.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a steam guide structure of a drying cylinder, which solves the actual problem of warping of the existing paper sheet.
In order to realize the purpose, the invention is realized by the following technical scheme: the utility model provides a steam guide structure of dryer, includes the dryer and inserts the steam conduit to the dryer in, the steam conduit is interior to be inserted there is the drain pipe, install reposition of redundant personnel mechanism on the steam conduit, reposition of redundant personnel mechanism includes:
the flange is arranged at the port of the steam pipeline, an opening B is formed in the center of the flange, the drain pipe penetrates through the opening B, and a gap is reserved between the opening B and the drain pipe;
the flange is provided with at least two openings A, and communicated branch pipes are fixedly connected to the two openings A;
the steam sprayed from the steam pipeline can be directly sprayed into the inner cavity of the drying cylinder through the gap and/or enter the branch pipe through the opening A to be sprayed into the edges of the two ends of the inner cavity of the drying cylinder.
Preferably, the junction of the branch pipe and the opening a is bent outward and extends radially to the two end edges of the cylinder cavity.
Preferably, the number of the openings a is at least two, and the distance between two adjacent branch pipes is equal.
Preferably, the gas outlet department of lateral pipe is provided with the structure of giving vent to anger, the structure of giving vent to anger includes:
the straight discharge port is arranged at the radial port of the branch pipe;
and the side discharge port is arranged on the side surface of the branch pipe, and the air outlet end is arranged towards the direction of the inner cavity of the drying cylinder.
Preferably, the axis of the side discharge port is perpendicular to the axis of the branch pipe.
Preferably, the branch pipe and the drain pipe are arranged in a staggered mode so as to facilitate air outlet of the branch pipe.
Preferably, an inner flange is installed at the opening A, an expanding opening is formed in the center of the inner flange, the wide opening end of the expanding opening is close to the steam pipeline, and the narrow opening end of the expanding opening is close to the branch pipe.
Preferably, the inner diameter of the narrow end of the flaring is larger than or equal to the inner diameter of the air inlet end of the branch pipe.
Advantageous effects
By using the steam guide structure of the drying cylinder, through the design of the flow distribution structure, partial steam is distributed to the edges of the two ends of the inner cavity of the drying cylinder by the branch pipes, so that multiple points of the steam are uniformly sprayed, the temperature on the surface of the drying cylinder is uniform, the temperature difference is reduced, and the condition that paper warps due to large temperature difference between the two ends and the center of the surface of the drying cylinder can be avoided.
Drawings
FIG. 1 is a schematic steam flow diagram of a prior art configuration;
FIG. 2 is a schematic steam flow diagram of the inventive structure;
FIG. 3 is a schematic view of the shunt mechanism of the present invention;
FIG. 4 is a schematic view of a lateral pipe installation form of the present invention;
FIG. 5 is a schematic view of a second embodiment of the installation of the branch pipe according to the present invention;
FIG. 6 is a third schematic view of the installation form of the lateral pipe according to the present invention;
FIG. 7 is a schematic view of the structure of the branch pipe of the present invention.
Description of the symbols in the drawings
1. Drying cylinder, 2, steam pipeline, 3, drain pipe, 4, flange, 5, branch pipe, 51, straight row of mouth, 52, side row of mouth, 6, opening A,7, opening B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Various modifications may be made to the embodiments as long as the effects of the present invention can be exerted.
In the related art, as shown in fig. 1, steam entering pipes of the drying cylinder are all straight-tube type, so that the steam is uniformly distributed in the drying cylinder through stirring of the turbulence bars, but the method can cause the temperature at the center of the drying cylinder to be higher than the temperature at the edges of two sides, and the temperature is uneven.
In order to solve the above problems, the present embodiment provides a steam guiding structure for a drying cylinder, wherein a flow dividing mechanism is installed on a steam pipeline, so that steam sprayed from the steam pipeline can be directly sprayed into an inner cavity of the drying cylinder through a gap and/or enter a branch pipe through an opening a to be sprayed into edges of two ends of the inner cavity of the drying cylinder, and multi-directional spraying is performed.
The embodiment has the advantages that the shunting mechanism is arranged at the air outlet of the steam pipeline, so that steam sprayed out of the steam pipeline can be sprayed into the drying cylinder through the opening B of the shunting mechanism and the branch pipes respectively, multiple points of the steam are sprayed uniformly, the temperature on the surface of the drying cylinder is uniform, the temperature difference is reduced, and the condition that paper is warped due to large temperature difference between the two ends of the surface of the drying cylinder and the center of the drying cylinder can be avoided.
The following working principles, detailed connecting means thereof, and following main descriptions of the working principles and processes shall be referred to by those skilled in the art to connect the components in this case in sequence, and the specific connecting and operating sequence shall be described below.
The steam guiding structure of a drying cylinder according to the present embodiment is described with reference to fig. 2 to 7, the steam guiding structure of a drying cylinder comprises a drying cylinder 1 and a steam pipeline 2 inserted into the drying cylinder 1, a water discharging pipe 3 is inserted into the steam pipeline 2, and a flow dividing mechanism is installed on the steam pipeline 2, and the flow dividing mechanism comprises:
the flange 4 is arranged at the port of the steam pipeline 2, an opening B7 is formed in the center of the flange, the drain pipe 3 penetrates through the opening B7, and a gap is reserved between the opening B7 and the drain pipe 3;
it should be noted that the diameter of the opening B7 is larger than the diameter of the water discharge pipe 3 to ensure the formation of the gap.
At least two openings A6 arranged on the flange 4, wherein the two openings A6 are fixedly connected with branch pipes 5 which are communicated;
wherein, the steam sprayed from the steam pipeline 2 can be directly sprayed into the inner cavity of the drying cylinder 1 through the gap and/or enter the branch pipe 5 through the opening A6 to be sprayed into the edges of the two ends of the inner cavity of the drying cylinder 1.
The steam volume directly sprayed into the drying cylinder 1 through the gap is reduced compared with the steam volume directly sprayed into the drying cylinder in the prior art, and the reduced part is evenly distributed into the branch pipes 5 to be sprayed to the edges of the two ends of the inner cavity of the drying cylinder 1, so that a multipoint and uniform steam spraying effect is formed, the temperature on the surface of the drying cylinder 1 is uniform, and the temperature difference between the two ends and the center is reduced.
The junction of the branch pipe 5 and the opening A6 is bent outward and extends radially towards the edges of the two ends of the inner cavity of the drying cylinder 1.
Further, the branch pipe 5 is preferably L-shaped, and the bending degree thereof is preferably 90 °.
The number of the openings A6 is at least two, and the adjacent two branch pipes 5 are equally spaced.
The number of the openings A6 is adapted to the number of the branch pipes 5, and the number may be 2, 3, 4 or more than 4, and when the number is 2, 3, 4 or more than 4, three installation forms are formed.
In the installation form 1, specifically, as shown in fig. 4, 2 branch pipes 5 are oppositely arranged on the same axis.
In installation form 2, specifically shown in fig. 5, the 3 branch pipes 5 are equally spaced.
In the installation form 3, specifically, as shown in fig. 6, the 4 branched pipes 5 are equally spaced.
The gas outlet department of lateral pipe 5 is provided with the structure of giving vent to anger, and the structure of giving vent to anger includes:
a straight discharge port 51 provided at a radial port of the branch pipe 5;
the straight exhaust opening 51 enables the steam to blow directly into the drying cylinder 1 at the edges of the two ends of the inner cavity.
The side discharge port 52 is arranged on the side surface of the branch pipe 5, and the gas outlet end is arranged towards the inner cavity direction of the drying cylinder 1;
the side discharge opening 52 enables the steam to be blown to the position close to the two end edges of the inner cavity of the drying cylinder 1, and the steam is sprayed out in multiple points.
The axis of the side discharge port 52 is perpendicular to the axis of the branch pipe 5.
The branch pipe 5 is arranged in a staggered way with the drain pipe 3 so as to facilitate the air outlet of the branch pipe 5. This dislocation sets up to drain pipe 3 can not shelter from in the front end department that lateral 5 gave vent to anger the structure, guarantees to give vent to anger that structure spun steam can not sheltered from.
Opening A6 department installs the inner flange, and inner flange center is opened there is the flaring, and the wide mouth end of flaring is pressed close to steam conduit 2 and is set up, and the narrow mouth end of flaring is pressed close to bleeder 5 and is set up.
The inner diameter of the narrow opening end of the flaring is larger than or equal to the inner diameter of the air inlet end of the branch pipe 5.
The design of flaring can effectively collect steam and get into in the bleeder 5, and the mouth of pipe of bleeder 5 can be protected to the interior flange simultaneously.
As will be explained in detail with reference to the specific example, when the steam is ejected through the steam pipe 2, a part of the steam to be ejected from the steam pipe 2 (especially, the steam at the center) can be directly ejected into the inner cavity of the drying cylinder 1 through the gap formed between the opening B7 and the drain pipe 3, so as to heat the temperature of the drying cylinder 1, especially, the temperature at the center; another part of steam (especially steam of circumference department) that steam conduit 2 will spout can enter into lateral pipe 5 and carry out the diversion and spout to dryer 1 inner chamber both ends edge in, realize multiple spot, even steam injection effect, make dryer 1 surface temperature even, the difference in temperature volume of both ends and center reduces to can avoid leading to the situation of paper warpage because of dryer surface both ends and center department difference in temperature are big.
Although embodiments of the present invention and its advantages have been described in detail, it should be understood that various changes, modifications and substitutions may be made therein by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the claims appended hereto are intended to encompass within their scope such processes, apparatus, manufacturers, compositions of matter, means, methods, or steps.
Claims (8)
1. A steam guide structure of a drying cylinder comprises the drying cylinder (1) and a steam pipeline (2) inserted into the drying cylinder (1), a drain pipe (3) is inserted into the steam pipeline (2), and the steam guide structure is characterized in that a flow dividing mechanism is installed on the steam pipeline (2) and comprises:
the flange (4) is arranged at a port of the steam pipeline (2), an opening B (7) is formed in the center of the flange, the drain pipe (3) penetrates through the opening B (7), and a gap is reserved between the opening B (7) and the drain pipe (3);
the flange is provided with at least two openings A (6) formed in the flange (4), and branch pipes (5) communicated with the openings A (6) are fixedly connected to the two openings A (6);
the steam sprayed out of the steam pipeline (2) can be directly sprayed into the inner cavity of the drying cylinder (1) through a gap and/or enter the branch pipe (5) through the opening A (6) to be sprayed into the edges of the two ends of the inner cavity of the drying cylinder (1).
2. A steam guiding structure of a drying cylinder as claimed in claim 1, characterized in that: the connection part of the branch pipe (5) and the opening A (6) is bent outwards and extends to the two end edges of the inner cavity of the drying cylinder (1) in the radial direction.
3. A steam guiding structure of a drying cylinder as claimed in claim 2, characterized in that: the number of the openings A (6) is at least two, and the distance between two adjacent branch pipes (5) is equal.
4. A steam guiding structure of a drying cylinder as claimed in claim 3, characterized in that: the gas outlet department of lateral pipe (5) is provided with the structure of giving vent to anger, the structure of giving vent to anger includes:
the straight discharge port (51) is arranged at the radial port of the branch pipe (5);
and the side discharge port (52) is arranged on the side surface of the branch pipe (5), and the air outlet end is arranged towards the inner cavity direction of the drying cylinder (1).
5. A steam guiding structure of a drying cylinder as claimed in claim 4, characterized in that: the axis of the side discharge port (52) is perpendicular to the axis of the branch pipe (5).
6. A steam guiding structure of a drying cylinder as claimed in claim 3, characterized in that: the branch pipe (5) and the drain pipe (3) are arranged in a staggered mode so as to facilitate air outlet of the branch pipe (5).
7. A steam guiding structure of a drying cylinder as claimed in claim 3, characterized in that: an inner flange is arranged at the opening A (6), an expanding opening is formed in the center of the inner flange, the wide opening end of the expanding opening is close to the steam pipeline (2) and the narrow opening end of the expanding opening is close to the branch pipe (5).
8. Steam guiding structure of a drying cylinder, according to claim 7, characterized in that: the inner diameter of the narrow opening end of the flaring is larger than or equal to the inner diameter of the air inlet end of the branch pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211673270.XA CN115748288A (en) | 2022-12-26 | 2022-12-26 | Steam guide structure of drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211673270.XA CN115748288A (en) | 2022-12-26 | 2022-12-26 | Steam guide structure of drying cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115748288A true CN115748288A (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211673270.XA Pending CN115748288A (en) | 2022-12-26 | 2022-12-26 | Steam guide structure of drying cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN115748288A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1116264A (en) * | 1965-07-08 | 1968-06-06 | Kimberly Clark Co | Dryer drum of a papermaking machine |
| CN101349026A (en) * | 2008-08-26 | 2009-01-21 | 陕西科技大学 | Steam knife type aqueous vapor injection apparatus in paper-making drying cylinder |
| CN208830043U (en) * | 2018-08-29 | 2019-05-07 | 台州森林造纸有限公司 | The paper grade (stock) drying cylinder of high efficiency drying |
| CN210268062U (en) * | 2019-04-16 | 2020-04-07 | 沈阳市新天地制衣有限公司 | Corrosion-resistant cloth even air blast drying cabinet |
| CN211782539U (en) * | 2020-01-17 | 2020-10-27 | 杭州萧山南阳造纸有限公司 | Drying mechanism of paper machine |
| CN216378925U (en) * | 2021-10-28 | 2022-04-26 | 河南秋月实业有限公司 | Paper machine dryer with thermal-insulated insulation construction |
-
2022
- 2022-12-26 CN CN202211673270.XA patent/CN115748288A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1116264A (en) * | 1965-07-08 | 1968-06-06 | Kimberly Clark Co | Dryer drum of a papermaking machine |
| CN101349026A (en) * | 2008-08-26 | 2009-01-21 | 陕西科技大学 | Steam knife type aqueous vapor injection apparatus in paper-making drying cylinder |
| CN208830043U (en) * | 2018-08-29 | 2019-05-07 | 台州森林造纸有限公司 | The paper grade (stock) drying cylinder of high efficiency drying |
| CN210268062U (en) * | 2019-04-16 | 2020-04-07 | 沈阳市新天地制衣有限公司 | Corrosion-resistant cloth even air blast drying cabinet |
| CN211782539U (en) * | 2020-01-17 | 2020-10-27 | 杭州萧山南阳造纸有限公司 | Drying mechanism of paper machine |
| CN216378925U (en) * | 2021-10-28 | 2022-04-26 | 河南秋月实业有限公司 | Paper machine dryer with thermal-insulated insulation construction |
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