CN218621562U - Drainage structure of large drying cylinder - Google Patents
Drainage structure of large drying cylinder Download PDFInfo
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- CN218621562U CN218621562U CN202223300387.1U CN202223300387U CN218621562U CN 218621562 U CN218621562 U CN 218621562U CN 202223300387 U CN202223300387 U CN 202223300387U CN 218621562 U CN218621562 U CN 218621562U
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Abstract
The utility model belongs to the technical field of papermaking, especially, relate to a drainage structure of large-scale dryer, include: the water-saving device comprises a main drain pipe, a water bucket and a branch drain pipe. The main drainage pipe is arranged in a rotating shaft of the drying cylinder; the water bucket is wedge-shaped, a water inlet is formed in the small end of the water bucket, a water outlet is formed in the large end of the water bucket, the distance from the water inlet to the water outlet is the longitudinal length H of the water bucket, and the opening width H of the water inlet along the longitudinal length H direction of the water bucket is less than or equal to one fourth of the longitudinal length H of the water bucket; one end of the drainage branch pipe is communicated with the water outlet of the water bucket, and the other end of the drainage branch pipe is communicated with the drainage main pipe. The utility model discloses a make the opening width H less than or equal to the fourth of bucket longitudinal length H of bucket water inlet, in a lot of water ladled into when can preventing to rotate falls back the dryer again, so can increase drainage efficiency, also enable drainage process more stable simultaneously, the noise is low.
Description
Technical Field
The utility model belongs to the technical field of the papermaking, especially, relate to a drainage structure of large-scale dryer.
Background
The drying cylinder is a hollow cylinder which is made of cast iron and is provided with covers at two ends, the drying cylinder is composed of a cylinder body and cylinder covers at two ends, the outer diameter is mostly 1000-3000 mm, and in the running process, steam is introduced to dry and iron conveyed paper. The specific principle is as follows: saturated steam introduced from the steam joint is condensed in the drying cylinder, and the temperature of the drying cylinder is raised by released heat, so that the paper sheets which run on the surface of the roller shell are heated. Heat is transferred to the paper sheet in contact with the surface of the drying cylinder. After the steam releases heat and is condensed, a large amount of condensed water is generated, and the condensed water is attached to the inner surface of the drying cylinder under the action of centrifugal force due to the rotation of the drying cylinder and forms a water ring under the condition of higher angular velocity, so that the heat is prevented from being transferred to the surface of the drying cylinder, and the condensed water needs to be discharged in time. When the speed of the vehicle is low, no water ring is formed, but the condensed water splashes and accumulates in the drying cylinder.
When draining, a drying cylinder with patent number CN211734857U is usually used, and water in the drying cylinder is drained by scooping up the water in the drying cylinder by a water bucket and then connecting to a drain pipe. However, the existing water hoppers are all opened above, so that a great amount of scooped water is easy to fall back into the drying cylinder again during rotation, the drainage efficiency is low, the drainage effect is not obvious, and noise is easy to cause.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical problem that above-mentioned exists, provide a drainage structures of large-scale dryer, reached when preventing to rotate a lot of by ladling out into water fall back the dryer again in, can increase drainage efficiency, also can reach simultaneously and make drainage process more stable, the effect that the noise is low.
In view of this, the utility model provides a drainage structures of large-scale dryer, include:
the main drainage pipe is arranged in the rotating shaft of the drying cylinder;
the water bucket is wedge-shaped, a water inlet is formed in the small head end of the water bucket, a water outlet is formed in the large head end of the water bucket, the distance between the water inlet and the water outlet is the longitudinal length H of the water bucket, and the opening width H of the water inlet along the direction of the longitudinal length H of the water bucket is less than or equal to one quarter of the longitudinal length H of the water bucket;
and one end of the branch drain pipe is communicated with the water outlet of the water bucket, and the other end of the branch drain pipe is communicated with the main drain pipe.
In this technical scheme, through the quarter that makes the opening width H less than or equal to bucket longitudinal length H of bucket water inlet, can prevent that a lot of water that are ladled into from falling back again in the dryer when rotatory, so can increase drainage efficiency, also enable drainage process more stable simultaneously, the noise is low.
Furthermore, the axis of the water outlet of the water bucket is perpendicular to the diameter of the drying cylinder, the water drainage branch pipe is arc-shaped, and the volume of the water drainage branch pipe is larger than that of the water bucket.
Furthermore, an air outlet is formed in the water bucket, and the air outlet is formed in the large end of the water bucket and close to the water outlet.
In this technical scheme, water gets into the water bucket from the water inlet and makes most air discharge from the gas vent gradually, reduces the air volume that gets into the drainage branch pipe, makes the drainage of drainage branch pipe more stable.
Furthermore, the exhaust port is sleeved with an exhaust pipe, the exhaust pipe extends outwards from the exhaust port, and the axis of the exhaust pipe and the water inlet direction of the water bucket form an angle of 45 degrees.
In this technical scheme, the setting of blast pipe direction can prevent that the water bucket from getting into the water bucket from the blast pipe when intaking, makes the blast pipe lose carminative effect in the blast pipe gets into the water bucket.
Further, the length of the exhaust pipe is equal to the longitudinal length H of one third of the water bucket.
In this technical scheme, the setting of blast pipe length can prevent that the water bucket from making water follow the blast pipe discharge because of the length of blast pipe is low excessively after ladling out water upwards to expose the surface of water.
Furthermore, a filter screen is arranged at the water inlet.
In this technical scheme, the filter screen can prevent that debris in the dryer from falling into bucket and drain branch and block up drain branch.
Furthermore, four drainage branch pipes are uniformly arranged along the circumferential direction of the drainage main pipe to form a group of drainage components;
in this technical scheme, four circumference evenly distributed's drainage branch pipe and bucket can make the dryer rotate the drainage more even.
Furthermore, three groups of the drainage assemblies are arranged at intervals along the length direction of the drainage main pipe.
In this technical scheme, three group's drainage subassembly can improve drainage efficiency.
The beneficial effects of the utility model are that:
1. through the quarter that makes the opening width H less than or equal to bucket longitudinal length H of bucket water inlet, can prevent that a lot of water that are ladled into from falling back again in the dryer when rotatory, so can increase drainage efficiency, also enable drainage process more stable simultaneously, the noise is low.
2. Water gets into the water bucket from the water inlet and makes most air discharge from the gas vent gradually, reduces the air volume that gets into the water drainage branch pipe, makes the drainage of water drainage branch pipe more stable, and the setting of blast pipe direction can prevent that the water bucket when intaking, and water gets into the water bucket from the blast pipe in, makes the blast pipe lose carminative effect, and the setting of blast pipe length can prevent that the water bucket from ladling out water upwards to expose the surface of water after, because of the length of blast pipe crosses lowly and makes water follow the blast pipe discharge.
3. The filter screen can prevent sundries in the drying cylinder from falling into the water bucket and the drainage branch pipe to block the drainage branch pipe.
Drawings
FIG. 1 is a perspective view of a drying cylinder;
FIG. 2 is a cross-sectional view of a drying cylinder containing a drainage structure;
FIG. 3 isbase:Sub>A sectional view A-A;
FIG. 4 is a cross-sectional view of a bucket;
the labels in the figures are:
1. a cylinder body; 2. a rotating shaft; 3. an air inlet; 4. a main drain pipe; 5. a water bucket; 6. a drain branch pipe; 7. a water inlet; 8. a water outlet; 11. an exhaust port; 12. an exhaust pipe; 13. the water inlet direction; 14. and (5) filtering by using a filter screen.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Example 1:
as shown in fig. 1-3, the drying cylinder includes a cylinder body 1 and a rotating shaft 2 penetrating the cylinder body 1 and connected to the cylinder body 1. Hot steam is dispersed into the cylinder body 1 from the air inlet 3 on the rotating shaft 2, so that the surface heat of the cylinder body 1 is increased, and the aim of drying paper is fulfilled. The hot steam cooling will form condensation water in the cylinder body 1, which due to the rotation of the drying cylinder is attached to the inner surface of the drying cylinder by centrifugal force, hindering the transfer of heat to the surface of the drying cylinder, and thus requiring a timely drainage of the condensation water through a drainage structure.
The drainage structure comprises a main drainage pipe 4, a water bucket 5 and a branch drainage pipe 6. The main drainage pipe 4 is arranged in the rotating shaft 2 of the drying cylinder; the water bucket 5 is wedge-shaped, a water inlet 7 is formed in the small end of the water bucket 5, a water outlet 8 is formed in the large end of the water bucket 5, the axis of the water outlet 8 of the water bucket 5 is perpendicular to the diameter of the drying cylinder, the distance between the water inlet 7 and the water outlet 8 is the longitudinal length H of the water bucket 5, and the opening width H of the water inlet 7 along the longitudinal length H direction of the water bucket 5 is less than or equal to one fourth of the longitudinal length H of the water bucket 5; the branch drainage pipe 6 is arc-shaped, one end of the branch drainage pipe 6 is communicated with a water outlet 8 of the water bucket 5, the other end of the branch drainage pipe 6 is communicated with the main drainage pipe 4, and the volume of the branch drainage pipe 6 is larger than that of the water bucket 5. Through making the opening width H of the water inlet 7 of the bucket 5 less than or equal to one fourth of the longitudinal length H of the bucket 5, a lot of scooped water can be prevented from falling back into the drying cylinder again during rotation, so that the drainage efficiency can be increased, and the drainage process can be more stable and the noise is low.
As shown in fig. 3-4, the bucket 5 is provided with an air outlet 11, and the air outlet 11 is arranged at the large end of the bucket 5 near the water outlet 8. The exhaust pipe 12 is sleeved on the exhaust port 11, the exhaust pipe 12 extends outwards from the exhaust port 11, and the axis of the exhaust pipe 12 forms an angle of 45 degrees with the water inlet direction 13 of the water bucket 5. Water enters the water bucket 5 from the water inlet 7, so that most of air can be gradually discharged from the air outlet 11, the air quantity entering the drainage branch pipe 6 is reduced, and the drainage of the drainage branch pipe 6 is more stable. The arrangement of the direction of the exhaust pipe 12 can prevent water from entering the water bucket 5 from the exhaust pipe 12 when the water bucket 5 enters water, so that the exhaust pipe 12 loses the exhaust function.
The length of the exhaust pipe 12 is equal to one third of the longitudinal length H of the water bucket 5. The length of the exhaust pipe 12 is set so as to prevent the water bucket 5 from being exposed to the water surface after scooping up water, and the water is discharged from the exhaust pipe 12 due to the excessively low length of the exhaust pipe 12.
Example 2:
the water inlet 7 is provided with a filter screen 14. The filter screen 14 can prevent impurities in the drying cylinder from falling into the water bucket 5 and the drain branch pipe 6 to block the drain branch pipe 6.
Example 3:
four drainage branch pipes 6 are uniformly arranged along the circumferential direction of the drainage main pipe 4 to form a group of drainage components; the four drain branch pipes 6 and the water buckets 5 which are uniformly distributed in the circumferential direction can ensure that the drying cylinder rotates and drains water more uniformly. Three sets of the above-described drainage assemblies are provided at intervals along the length of the drainage manifold 4. Three sets of drainage subassemblies can improve drainage efficiency.
While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.
Claims (8)
1. A drainage structure of a large-sized drying cylinder is characterized by comprising:
the main drainage pipe (4), the main drainage pipe (4) is arranged in the rotating shaft (2) of the drying cylinder;
the water bucket (5) is wedge-shaped, a water inlet (7) is formed in the small end of the water bucket (5), a water outlet (8) is formed in the large end of the water bucket, the distance between the water inlet (7) and the water outlet (8) is the longitudinal length H of the water bucket (5), and the opening width H of the water inlet (7) along the longitudinal length H direction of the water bucket (5) is less than or equal to one fourth of the longitudinal length H of the water bucket (5);
and one end of the branch drainage pipe (6) is communicated with a water outlet (8) of the water bucket (5), and the other end of the branch drainage pipe (6) is communicated with the main drainage pipe (4).
2. A drainage structure of large drying cylinder according to claim 1 characterized in that the axis of the water outlet (8) of the bucket (5) is perpendicular to the diameter of the drying cylinder, the branch drain pipe (6) is arc-shaped, and the volume of the branch drain pipe (6) is larger than that of the bucket (5).
3. A drainage structure of a large drying cylinder according to claim 2, characterized in that the bucket (5) is provided with an exhaust opening (11), and the exhaust opening (11) is arranged at the large end of the bucket (5) near the water outlet (8).
4. A drainage structure of a large drying cylinder according to claim 3, characterized in that the exhaust opening (11) is sleeved with an exhaust pipe (12), the exhaust pipe (12) extends outwards from the exhaust opening (11) and the axis of the exhaust pipe (12) forms an angle of 45 ° with the water inlet direction (13) of the bucket (5).
5. A drainage arrangement of a large drying cylinder according to claim 4, characterized in that the length of the exhaust duct (12) is equal to one third of the longitudinal length H of the bucket (5).
6. A drainage arrangement of a large drying cylinder according to claim 1 or 5, characterized in that the inlet (7) outlet is provided with a screen (14).
7. A drainage structure of a large drying cylinder according to claim 1, characterized in that the branch drainage pipes (6) are arranged evenly in four groups along the circumference of the main drainage pipe (4) to form a drainage assembly.
8. A drainage arrangement for large drying cylinders according to claim 7, characterized in that three sets of said drainage assemblies are provided at intervals along the length of the drainage manifold (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223300387.1U CN218621562U (en) | 2022-12-09 | 2022-12-09 | Drainage structure of large drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223300387.1U CN218621562U (en) | 2022-12-09 | 2022-12-09 | Drainage structure of large drying cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218621562U true CN218621562U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223300387.1U Active CN218621562U (en) | 2022-12-09 | 2022-12-09 | Drainage structure of large drying cylinder |
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| CN (1) | CN218621562U (en) |
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- 2022-12-09 CN CN202223300387.1U patent/CN218621562U/en active Active
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