CN201844676U - Turbulence bar structure for high thermal efficiency drying cylinder - Google Patents
Turbulence bar structure for high thermal efficiency drying cylinder Download PDFInfo
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- CN201844676U CN201844676U CN2010205579126U CN201020557912U CN201844676U CN 201844676 U CN201844676 U CN 201844676U CN 2010205579126 U CN2010205579126 U CN 2010205579126U CN 201020557912 U CN201020557912 U CN 201020557912U CN 201844676 U CN201844676 U CN 201844676U
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- drying cylinder
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Abstract
The utility model relates to a turbulence bar structure for a high thermal efficiency drying cylinder, which comprises a plurality of connecting rings and a plurality of strip turbulence bars. The connecting rings are coaxially arranged in the dying cylinder. The turbulence bars which are in contact with the inner wall of the drying cylinder are uniformly fixedly arranged at the outer edges of the connecting rings along the radial direction. The turbulence bar structure is characterized in that each turbulence bar is solid; and the surface outside each turbulence bar is provided with an arc surface which tightly clings to the inner wall of the drying cylinder. The turbulence bar structure has simple structure. The number and the size of the turbulence bars are scientific and reasonable. The turbulence bar structure can effectively improve the thermal conductivity of steam. Compared with the prior art, the surface temperature of the drying cylinder can be increased by 4 to 11 DEG C during low-speed rotating of the drying cylinder; and, the surface temperature of the drying cylinder can be increased by 6 to 7 DEG C during high-speed rotating of the drying cylinder. Therefore, the drying effect of paper can be ensured effectively during high-speed rotating of the drying cylinder, energy is integrally saved and the production efficiency is improved.
Description
Technical field
The utility model belongs to papermaking and food drying equipment field, and especially a kind of high heat is imitated drying cylinder flow-disturbing bar structure.
Background technology
Drying cylinder is a drying equipment important in the paper technology, its structure comprises cylinder block and end cap, installing one on the inwall of cylinder block avoids inboard wall of cylinder block to form the flow-disturbing bar structure of moisture film, at the both ends open place of cylinder block an end cap is installed respectively, the rotating shaft of coaxial setting-in hollow on the end cap of a side, this rotating shaft not only supports the drying cylinder rotation, and the inside of its hollow also is equipped with the discharge pipe line of steam feeding pipeline and condensed water, the part that stretches into drying cylinder at rotating shaft is equipped with siphoning installation, siphoning installation is the bucket shape siphoning installation that catchments, its structure comprises the bucket shape water collector, the bucket shape water collector can adopt the mounting structure that does not rotate, also can take and the synchronous mounting structure that rotates of cylinder body, the bucket shape water collector is collected the condensed water that is condensed into by steam, discharge pipe line in rotating shaft is discharged outside the cylinder body, and the setting of siphoning installation is discharged condensed water as soon as possible, has improved the pyroconductivity of steam.
Above-mentioned flow-disturbing bar structure generally comprises a plurality of connecting rings and a plurality of hollow bar shaped flow-disturbing rod, a plurality of connecting rings and the coaxial setting of cylinder block, and parallel and radial equipartition installs and the contacted a plurality of flow-disturbing rods of cylinder block inwall in the outer rim of a plurality of connecting rings.When cylinder block rotates, steam changes condensed water into through the heat exchange with cylinder block, these condensed waters can form moisture film at the cylinder block inwall under action of centrifugal force, reduce the heat conduction efficiency between steam and the drying cylinder, and bar shaped flow-disturbing rod has played the effect that moisture film forms that stops.But bar shaped flow-disturbing commonly used rod cross section is a square or rectangular, hollow structure thermal resistance is higher, and leave the space between the inwall of itself and cylinder block, it is not tight to fit, also improved thermal resistance, and the number of bar shaped flow-disturbing rod and the size setting also have irrational problem, condensed water can occur and cross flow-disturbing rod " overflow " problem, " overflow " can improve thermal resistance too, causes the decline of surface temperature of drier.
In sum, flow-disturbing bar structure of the prior art and siphoning installation combine the effect that reached as shown in figure 10, wherein marking " 20 hollow flow-disturbing rods ", the curve of " 25 hollow flow-disturbing rods " and " 30 hollow flow-disturbing rods " is the temperature variation curve of the used structure of prior art under different rotating speeds, " unconfined flow rod " curve is the temperature variation curve behind the formation moisture film in the drying cylinder, by more as can be known, use under the situation of flow-disturbing rod, drying cylinder by the slow-speed of revolution when the high rotation speed change, because the existence of condensed water causes variation of temperature very obvious, its temperature drop is at 4～7 ℃, greater than the rotating speed of 1200m/min the time, the flow-disturbing rod lost efficacy, this oven dry for paper is very disadvantageous, the quality problems that can cause final finished when the paper drying effect is bad, satisfy normal need of work so in the production technology of using existing flow-disturbing bar structure, must improve constantly the temperature of steam or the rotating speed of reduction drying cylinder, this certainly will cause the waste of a large amount of energy, improve the production cost of manufacturer, reduce production efficiency, also be unfavorable for guaranteeing the quality of paper.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure and high heat that can effectively improve surface temperature of drier to imitate drying cylinder flow-disturbing bar structure.
The technical scheme that the utility model is taked is:
A kind of high heat is imitated drying cylinder flow-disturbing bar structure, comprise a plurality of connecting rings and a plurality of bar shaped flow-disturbing rod, a plurality of connecting rings are coaxial to be arranged in the drying cylinder, outer rim radial equipartition at a plurality of connecting rings installs and the contacted a plurality of flow-disturbing rods of drying cylinder inwall, and it is characterized in that: described each flow-disturbing rod is solid and its outer surface is made the cambered surface that fits tightly with the drying cylinder inwall.
And the number of described flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, flow-disturbing rod number is 20～25;
When drying cylinder diameter during greater than 3 meters, flow-disturbing rod number is 35～40.
And the specification of described flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, every flow-disturbing rod cross section is 25 * 25mm
2
When drying cylinder diameter during greater than 3 meters, every flow-disturbing rod cross section is 30 * 40mm
2Or 40 * 50mm
2
And described flow-disturbing rod is made by high thermal conductance metal.
And described connecting ring is joined end to end successively by bolt by four segmental arcs and constitutes.
And, comprising that also one is installed in the siphoning installation on the drying cylinder rotating shaft, this siphoning installation is bucket shape siphoning installation or the annular siphoning installation that catchments that catchments.
And, the described annular siphoning installation that catchments comprises collecting ring, arc tube connector and five-way head, the coaxial inner surface that is packed in a plurality of flow-disturbing rods of a plurality of collecting rings, the outer surface of each collecting ring all is shaped on the siphon port that is crimped on phase contraposition flow-disturbing rod sidewall, and the medial end of four arc tube connectors that each collecting ring one side surface is communicated with is communicated with the interior discharge pipe line of drying cylinder rotating shaft by a five-way head.
And, the described annular siphoning installation that catchments comprises collecting ring, arc tube connector, five-way head and tube connector, two coaxial inner surfaces that are packed in a plurality of flow-disturbing rods of collecting ring symmetry, the outer surface of each collecting ring all is shaped on the siphon port that is crimped on phase contraposition flow-disturbing rod sidewall, radial equipartition is equipped with four tube connectors between the relative two sides of two collecting rings, and four tube connectors are communicated with discharge pipe line in the drying cylinder rotating shaft by four arc tube connectors and five-way head.
Advantage of the present utility model and good effect are:
1. the rod of the flow-disturbing in this flow-disturbing bar structure is solid, and make by the metal of high heat conductance such as aluminium, copper, the cambered surface that the outer surface of each flow-disturbing rod is made makes the flow-disturbing rod fit tightly with the drying cylinder inwall, can in the slit, not retain condensed water, and the excellent surface area that has improved the drying cylinder inwall of flow-disturbing itself, the heat of steam can be conducted fully, improved the surface temperature of drying cylinder, not only save the energy, paper is dried faster, improved production efficiency.
2. the rod of the flow-disturbing in this flow-disturbing bar structure number is 20～25, the cross section of flow-disturbing rod is set according to the size of drying cylinder diameter, the number of flow-disturbing rod and the cross section of different size make drying cylinder all can't form uniform moisture film under the slow-speed of revolution or high-speed state, effectively raise the contact area of steam and drying cylinder inwall, improved the conductivity of heat, reduce energy resource consumption, reduced cost.
3. siphoning installation not only can adopt the bucket shape siphoning installation that catchments in this flow-disturbing bar structure, also can adopt the annular siphoning installation that catchments, when diameter uses the hard-wired bucket shape siphoning installation that catchments during in the slow-speed of revolution less than 2 meters drying cylinder, adopt during high rotating speed and the drying cylinder bucket shape of the rotation siphoning installation that catchments synchronously, and diameter adopts the annular siphoning installation that catchments greater than 3 meters drying cylinder, the use of various siphoning installations has further improved the surface temperature of drying cylinder, manufacturer can select for use flexibly simultaneously, has made things convenient for production.
4. the utility model is simple in structure, the number and the size of flow-disturbing rod are scientific and reasonable, can effectively improve the pyroconductivity of steam, and logical prior art is compared, during the slow-speed of revolution, surface temperature of drier can improve 4～11 ℃, and during high rotating speed, surface temperature of drier can improve 6～7 ℃, as seen, also can effectively guarantee the drying effect of paper during the drying cylinder high speed rotating, save the energy on the whole, improve production efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right view (removing drying cylinder right side end cap) of Fig. 1.
Fig. 3 is the I portion enlarged drawing of Fig. 2.
Fig. 4 is the catchment structural representation of siphoning installation of first kind of annular.
Fig. 5 is the structural representation of collecting ring, arc tube connector and drying cylinder sidewall.
Fig. 6 is the structural representation of embodiment 2.
Fig. 7 is the catchment structural representation of siphoning installation of second kind of annular.
Fig. 8 is that the A-A of Fig. 7 is to cross-sectional view.
Fig. 9 is the II portion enlarged drawing of Fig. 8.
Figure 10 is the temperature of the utility model and prior art and the curve of drying cylinder rotating speed.
The specific embodiment
Below in conjunction with embodiment, the utility model is further specified, following embodiment is illustrative, is not determinate, can not limit protection domain of the present utility model with following embodiment.
In the utility model, because the annular siphoning installation that catchments has two kinds of structures, below be described respectively by two embodiment, described first kind of annular siphoning installation that catchments among the embodiment 1, embodiment 2 has described second kind of annular siphoning installation that catchments.
Embodiment 1
A kind of high heat is imitated drying cylinder flow-disturbing bar structure, shown in Fig. 1～5, comprise a plurality of connecting rings 3 and a plurality of bar shaped flow-disturbing rod 2, a plurality of connecting rings are coaxial to be arranged in the drying cylinder 1, outer rim radial equipartition at a plurality of connecting rings installs and the contacted a plurality of flow-disturbing rods of drying cylinder inwall, innovation of the present utility model is: each flow-disturbing rod is solid and its outer surface is made the cambered surface that fits tightly with the drying cylinder inwall, the all made cambered surface of the outer surface of each flow-disturbing rod makes the flow-disturbing rod fit tightly with the drying cylinder inwall, the leakage of condensed water can not occur.
In the present embodiment, each flow-disturbing rod is made by aluminium, the contour thermal conductance metal of copper, and flow-disturbing rod bottom surface and drying cylinder inwall that high heat conductivity metal is made fit tightly, and have improved the surface area of drying cylinder inwall, the heat of steam can be conducted fully, improved the surface temperature of drying cylinder.
The number of flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, flow-disturbing rod number is 20～25; When drying cylinder diameter during greater than 3 meters, flow-disturbing rod number is 35～40.
The specification of each flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, every flow-disturbing rod cross section is 25 * 25mm
2, when drying cylinder diameter during greater than 3 meters, every flow-disturbing rod cross section is 30 * 40mm
2Or 40 * 50mm
2, the number of flow-disturbing rod and the cross section of different size make drying cylinder all can't form uniform moisture film under the slow-speed of revolution or high-speed state, effectively raise the contact area of steam and drying cylinder inwall, have improved the conductivity of heat.
Above-mentioned connecting ring is joined end to end successively by four segmental arcs and constitutes, kink is all made in two relative ends of segmental arc, connect by bolt 11 between two kinks, two sides at each kink all install reinforcement 10, bolt can be finely tuned the diameter of connecting ring, and reinforcement makes connecting ring more firm.
In order further to improve the temperature of dryer surface, also comprise a siphoning installation in the flow-disturbing bar structure, when drying cylinder diameter during less than 2 meters, rotating speed is during less than 600m/min, because condensed water mainly concentrates on the drying cylinder bottom, adopt the bucket shape that does not the rotate of the prior art siphoning installation that catchments, rotating speed is during greater than 600m/min, adopts the bucket shape that rotates synchronously with the drying cylinder of the prior art siphoning installation that catchments.The bucket shape siphoning installation that catchments comprises the bucket shape water collector, and the discharge pipe line in the collected rotating shaft 8 of condensed water in being inlaid in end cap 6 that is condensed into by steam of bucket shape water collector is discharged outside the cylinder body.When drying cylinder diameter during greater than 3 meters, adopt the annular siphoning installation that catchments, its structure is: comprise two collecting rings 5, eight arc tube connectors 4 and be installed in two five-way heads 7 on the drying cylinder rotating shaft, two coaxial inner surfaces that are packed in a plurality of flow-disturbing rods of collecting ring, each collecting ring is joined end to end successively by clamping screw 9 by four segmental arcs and constitutes, the outer surface of four segmental arcs is uniform makes a plurality of siphon port 12, each siphon port all leans against the flow-disturbing rod sidewall (see figure 5) of phase contraposition, when drying cylinder rotates, condensed water accumulates in a sidewall of flow-disturbing rod under action of centrifugal force, this moment this sidewall near siphon port just in time condensed water is siphoned away, drainage effect is very good, in order further to improve drainage effect, siphon port is 2～4mm apart from the height H of drying cylinder inwall.The side of each segmental arc of two collecting rings all is communicated with an end of an arc tube connector, and the other end of each arc tube connector all is communicated with an input of five-way head, and the output of five-way head is communicated with the discharge pipe line in the drying cylinder rotating shaft.Annular in the present embodiment siphoning installation that catchments is applicable to that the less diameter of width is greater than 3 meters drying cylinder.
Present embodiment is shown in 6～9, the structure of a plurality of connecting rings and a plurality of flow-disturbing rods, size and the two are all identical with embodiment 1 with the annexation of drying cylinder inwall and rotating shaft, the different diameters that are greater than the catchment structure of siphoning installation of the annular of 3 meters drying cylinders are: comprise two collecting rings, four arc tube connectors, a five-way head and four tube connectors, two coaxial inner surfaces that are installed in a plurality of flow-disturbing rods of collecting ring symmetry, each collecting ring is joined end to end successively by clamping screw 9 by four segmental arcs and constitutes, the outer surface of four segmental arcs is uniform makes a plurality of siphon port 12, each siphon port all leans against the flow-disturbing rod sidewall (see figure 9) of phase contraposition, when drying cylinder rotates, condensed water accumulates in a sidewall of flow-disturbing rod under action of centrifugal force, this moment this sidewall near siphon port just in time condensed water is siphoned away, drainage effect is very good, in order further to improve drainage effect, siphon port is 2～4mm apart from the height H of drying cylinder inwall.All be communicated with between four segmental arcs of phase contraposition between two collecting rings by a tube connector, four tube connectors all are communicated with an end of an arc tube connector, the other end of each arc tube connector all is communicated with an input of five-way head, and the output of five-way head is communicated with the discharge pipe line in the drying cylinder rotating shaft.Annular in the present embodiment siphoning installation that catchments is applicable to that the bigger diameter of width is greater than 3 meters drying cylinder.
Comparative test result is seen the curve of " the 20 solid aluminum alloy flow-disturbing rods " indication among Figure 10, as seen in the rotating speed interval of 0～1500m/min, temperature drop is controlled at about 4 ℃, other three kinds of schemes with prior art are compared, when the rotating speed of 600m/min, surface temperature of drier can improve 4～11 ℃, and when the rotating speed of 1500m/min, surface temperature of drier can improve 6～7 ℃.In the temperature variation curve of 25 solid copper alloy flow-disturbing rods and 35～40 solid aluminum alloy flow-disturbing rods, temperature is also identical with Figure 10 with the rotation speed change of drying cylinder, as seen, no matter in minor diameter drying cylinder or major diameter drying cylinder, after adopting structure of the present utility model, the temperature stabilization of dryer surface, temperature drop is little, especially when high rotating speed, the temperature of dryer surface is still very high, and drying cylinder is operated under the higher rotation speed, this efficient that just means paper oven dry in the unit interval is higher, can not only guarantee the drying effect of paper, improve production efficiency, but also save the consumption of the energy.
Claims (8)
1. one kind high heat is imitated drying cylinder flow-disturbing bar structure, comprise a plurality of connecting rings and a plurality of bar shaped flow-disturbing rod, a plurality of connecting rings are coaxial to be arranged in the drying cylinder, outer rim radial equipartition at a plurality of connecting rings installs and the contacted a plurality of flow-disturbing rods of drying cylinder inwall, and it is characterized in that: described each flow-disturbing rod is solid and its outer surface is made the cambered surface that fits tightly with the drying cylinder inwall.
2. high heat according to claim 1 is imitated drying cylinder flow-disturbing bar structure, and it is characterized in that: the number of described flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, flow-disturbing rod number is 20～25;
When drying cylinder diameter during greater than 3 meters, flow-disturbing rod number is 35～40.
3. high heat according to claim 1 is imitated drying cylinder flow-disturbing bar structure, and it is characterized in that: the specification of described flow-disturbing rod is:
When drying cylinder diameter during less than 2 meters, every flow-disturbing rod cross section is 25 * 25mm
2
When drying cylinder diameter during greater than 3 meters, every flow-disturbing rod cross section is 30 * 40mm
2Or 40 * 50mm
2
4. high heat according to claim 1 is imitated drying cylinder flow-disturbing bar structure, and it is characterized in that: described flow-disturbing rod is made by high thermal conductance metal.
5. high heat according to claim 1 is imitated drying cylinder flow-disturbing bar structure, and it is characterized in that: described connecting ring is joined end to end successively by bolt by four segmental arcs and constitutes.
6. high heat according to claim 1 is imitated drying cylinder flow-disturbing bar structure, it is characterized in that: comprise that also one is installed in the siphoning installation on the drying cylinder rotating shaft, this siphoning installation is bucket shape siphoning installation or the annular siphoning installation that catchments that catchments.
7. high heat according to claim 6 is imitated drying cylinder flow-disturbing bar structure, it is characterized in that: the described annular siphoning installation that catchments comprises collecting ring, arc tube connector and five-way head, the coaxial inner surface that is packed in a plurality of flow-disturbing rods of a plurality of collecting rings, the outer surface of each collecting ring all is shaped on the siphon port that is crimped on phase contraposition flow-disturbing rod sidewall, and the medial end of four arc tube connectors that each collecting ring one side surface is communicated with is communicated with the interior discharge pipe line of drying cylinder rotating shaft by a five-way head.
8. high heat according to claim 6 is imitated drying cylinder flow-disturbing bar structure, it is characterized in that: the described annular siphoning installation that catchments comprises collecting ring, arc tube connector, five-way head and tube connector, two coaxial inner surfaces that are packed in a plurality of flow-disturbing rods of collecting ring symmetry, the outer surface of each collecting ring all is shaped on the siphon port that is crimped on phase contraposition flow-disturbing rod sidewall, radial equipartition is equipped with four tube connectors between the relative two sides of two collecting rings, and four tube connectors are communicated with discharge pipe line in the drying cylinder rotating shaft by four arc tube connectors and five-way head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205579126U CN201844676U (en) | 2010-10-12 | 2010-10-12 | Turbulence bar structure for high thermal efficiency drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205579126U CN201844676U (en) | 2010-10-12 | 2010-10-12 | Turbulence bar structure for high thermal efficiency drying cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844676U true CN201844676U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205579126U Expired - Lifetime CN201844676U (en) | 2010-10-12 | 2010-10-12 | Turbulence bar structure for high thermal efficiency drying cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502531A (en) * | 2011-05-03 | 2014-01-08 | 当特詹森公司 | Turbulence bar assembly |
| CN103696315A (en) * | 2013-12-10 | 2014-04-02 | 江苏腾旋科技股份有限公司 | Spoiler |
| CN109505184A (en) * | 2018-12-25 | 2019-03-22 | 卞学询 | Paper machine wide cut steel energy conservation drying cylinder |
-
2010
- 2010-10-12 CN CN2010205579126U patent/CN201844676U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502531A (en) * | 2011-05-03 | 2014-01-08 | 当特詹森公司 | Turbulence bar assembly |
| CN103502531B (en) * | 2011-05-03 | 2015-07-15 | 当特詹森公司 | Turbulence bar assembly |
| CN103696315A (en) * | 2013-12-10 | 2014-04-02 | 江苏腾旋科技股份有限公司 | Spoiler |
| CN109505184A (en) * | 2018-12-25 | 2019-03-22 | 卞学询 | Paper machine wide cut steel energy conservation drying cylinder |
| CN109505184B (en) * | 2018-12-25 | 2024-02-20 | 诸城大正机械科技有限公司 | Wide-width energy-saving steel drying cylinder for paper machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20120725 |