CN2466205Y - Oil-heated drying cylinder for papermaking machine - Google Patents
Oil-heated drying cylinder for papermaking machine Download PDFInfo
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- CN2466205Y CN2466205Y CN 01213098 CN01213098U CN2466205Y CN 2466205 Y CN2466205 Y CN 2466205Y CN 01213098 CN01213098 CN 01213098 CN 01213098 U CN01213098 U CN 01213098U CN 2466205 Y CN2466205 Y CN 2466205Y
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- papermaking machine
- drying cylinder
- conducting oil
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Abstract
The utility model relates to an oil-heated drying cylinder of a papermaking machine, which is composed of a columnar cylinder body, a cylinder cover and a shaft head. The inner wall of the cylinder body is encircled by a heat conduction oil pipe which is connected with the inner wall of the cylinder body, and both ends of the heat conduction oil pipe is communicated with an organic heat carrier or a heat transfer oil supply line through the hollow part of the shaft head. The heat efficiency is improved by adopting the heat transfer oil as a heat exchange medium. As the heat transfer oil runs under the ordinary pressure, the technical requirement of the drying cylinder is reduced, and thereby, the weight of the drying cylinder is lightened.
Description
The utility model belongs to pulp technology for making paper, relates in particular to the improvement to paper machine dryer.
During paper, when paper web forms and after the press section dehydration, still has the moisture content about 60% to need slough in the oven dry portion of paper machine, so that paper web reaches about 94% required mass dryness fraction of finished product.The paper web drying is the maximum operation of power consumption in the papermaking, accounts for 60% of steam consumption, and oven dry portion equipment is paper machine the heaviest the longest part, weight accounts for 60% of paper machine, cost accounts for 50% of paper machine, and the nucleus equipment of this part is baking paper cylinder and baking blanket cylinder, the general designation drying cylinder.Paper industry is to the drying of paper web, and what take is that steam is fed drying cylinder always, to the drying cylinder heating, utilizes the dryer surface heat paper web moisture content to be carried out the drying means of heating evaporation diffusion.Domestic drying cylinder forms through spun casting by cast iron, and it is made of cylinder body, cylinder cap, spindle nose etc., is cavity in the cylinder body, and the cylinder cap two ends are spindle nose, and steam enters inner chamber by the hollow bulb of spindle nose, wherein also is provided with condensate water extraction device.In order to reach higher bake out temperature, the steam pressure that feeds in the drying cylinder is 0.3-0.5MPa, in order to bear pressure, the wall thickness of general cylinder body will reach more than the 20mm, and the thickness of cylinder cap is bigger, for large diameter drying cylinder, its wall thickness can reach 50-70mm, and single cylinder weight does not wait from several tons to tens tons.
There is following shortcoming in drying cylinder with Steam Heating: at first be the operating cost height, and a paper machine of producing ten thousand tons per year, the steam expense in its oven dry portion every year just reaches 2,000,000 yuan.Main cause is that the thermal efficiency of steam boiler own is not high, and the steam waste heat rate of recovery is low, after the steam in the cylinder body becomes condensed water, has strengthened heat transmission resistance, has increased energy consumption.In addition, because the steam pressure requirement increases the wall thickness of drying cylinder, weight strengthens, and electric load increases during running.Secondly, the employing of steam dryer has strengthened the equipment investment that matches with it, as the input of equipment such as steam boiler, water treatment, dedusting, plumbing.
The purpose of this utility model is to provide a kind of papermaking machine oil hot type drying cylinder, to reduce heat cost and equipment investment.
For achieving the above object, the employing technical scheme is as follows: papermaking machine oil hot type drying cylinder, contain garden cylindricality cylinder body, there is cylinder cap at the two ends of garden cylindricality cylinder body, and the outside, two cylinder cap axle center is a spindle nose, and oil feed line communicates with inner chamber of cylinder block by the hollow bulb of spindle nose, particularly around inboard wall of cylinder block, have and the inboard wall of cylinder block heat-conducting oil pipes that is connected as a single entity, heat-conducting oil pipes is made to connect wall type and is arranged, and its in-out end links by the hollow bulb and the oil feed line of spindle nose.
Heat-conducting oil pipes is provided with around the inboard wall of cylinder block helical form.The helical form heat-conducting oil pipes is made of inboard wall of cylinder block and spiral helicine semicanal.
Heat-conducting oil pipes is around inboard wall of cylinder block, with the setting that becomes to be arranged in parallel of cylinder body axial line.The heat-conducting oil pipes that is provided with that is arranged in parallel is made of inboard wall of cylinder block and the semicanal that is arranged in parallel.
In addition, two cylinder caps are designed to spoke-like, fixedly connected with cylinder body in the cylinder cap outer.
Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.
Fig. 1 is the sectional structure schematic diagram of papermaking machine oil hot type drying cylinder embodiment one.
Fig. 2 is the sectional structure schematic diagram of embodiment two.
Fig. 3 is the sectional structure schematic diagram of embodiment three.
Fig. 4 be among Fig. 3 along A-A to the sectional structure schematic diagram.
Fig. 5 is the side direction half section structural representation of embodiment four.
Fig. 1 is first embodiment of the present utility model, and papermaking machine oil hot type drying cylinder is by garden cylindricality cylinder body 1, the cylinder cap 2,3 at cylindricality cylinder body 1 two ends, garden, and the spindle nose 4,5 in the outside, two cylinder caps, 2,3 axle center constitutes.Two spindle noses 4,5 are hollow form.Inwall 6 around cylinder body has the helical form heat-conducting oil pipes 7 that is connected as a single entity with inboard wall of cylinder block 6, and helical form heat-conducting oil pipes 7 company's of work wall types are arranged, and promptly the outer wall of heat-conducting oil pipes 7 does not stay the gap each other, closely arranges.The in-out end of heat-conducting oil pipes 7 links by the hollow bulb and the outside oil feed line of spindle nose 4,5.Conduction oil is advanced by an end, is brought out by another, also can be same end turnover according to the structural design of original drying cylinder.Direction shown in the solid arrow is the turnover direction of conduction oil among the figure, and dotted arrow indicates the flow direction of conduction oil in pipe.The cross section of heat-conducting oil pipes is a garden shape among this embodiment, and in addition, rectangle, triangle or other special-shaped oil pipes also can be selected to use as required.
Embodiment illustrated in fig. 2 and difference embodiment one is, from the cross section of helical form heat-conducting oil pipes, it is not a complete garden pipe, but the cross section is the half garden pipe 8 of half garden shape, its pipeline has utilized the inwall 6 of cylinder body, and the two constitutes by inboard wall of cylinder block 6 and spiral helicine half garden pipe 8.This structure by the synthetic heat-conducting oil pipes of inboard wall of cylinder block and semicanal has increased the direct heating surface area of casing wall, more helps heat and conducts to cylinder surfaces.In addition, also can be shapes such as rectangle, ellipse garden shape, triangle in this embodiment with the Cross section Design of heat-conducting oil pipes.
Fig. 3 embodiment is the another kind of arrangement architecture of heat-conducting oil pipes at inboard wall of cylinder block, and heat-conducting oil pipes 7 is around inboard wall of cylinder block 6, and the direction along paralleling with the cylinder body axial line be arranged in parallel, connects wall type and arranges.The heat-conducting oil pipes 7 that be arranged in parallel is end to end, and direction shown in the arrow is the flow direction of conduction oil in pipe among the figure.The connected mode that the heat-conducting oil pipes that is arranged in parallel also can adopt and first connect with the prime minister, tail and tail join.Fig. 4 illustrates the arrangement architecture of heat-conducting oil pipes 7 at inboard wall of cylinder block 6.In addition, the cross section is that heat-conducting oil pipes square, three other shapes such as shape also can be arranged on inboard wall of cylinder block in such a way.
Fig. 5 embodiment is further perfect to embodiment three, and the two constitutes heat-conducting oil pipes by inboard wall of cylinder block 6 and the half garden pipe that is arranged in parallel 9.Its objective is in order to increase the heating surface area of inboard wall of cylinder block, help the heat conduction.This semicanal that is arranged in parallel also can be the semicanal of shapes such as rectangle, ellipse garden shape, triangle.In order to alleviate the weight of cylinder cap, the utility model has also been done improvement to the structure of cylinder cap, as Fig. 5, original full envelope is rolled into a ball the formula cylinder cap be made as spoke-like cylinder cap 10, and spoke-like cylinder cap 10 is provided with open-work 11 easy accesses, fixedlys connected with cylinder body in the cylinder cap outer.
The operation principle of this drying cylinder is with the organic heat carrier after the heating or claims conduction oil, adopts the method for forced circulation, feeds heat-conducting oil pipes, by heat-conducting oil pipes heat is delivered to dryer surface again, and then realizes the drying to paper web.Disclosed technical scheme also can be widely used in the transformation to the existing drying cylinder of paper industry in the foregoing description except that the design that is used for new drying cylinder.
The utility model compared with prior art has the following advantages:
1, oily hot type drying cylinder adopts conduction oil to make heat exchange medium, because conduction oil is the operation of normal pressure liquid phase, and is full of whole drying cylinder inside with conduction oil unlike feeding steam, just feed in the heat-conducting oil pipes, like this, less conduction oil just can reach the temperature requirements of paper web drying.Existing drying cylinder adopts the steam boiler heat supply, and the thermal efficiency is generally below 30%, and the heat supply of employing heat-conducting oil furnace, the thermal efficiency can reach more than 70%, and its thermal efficiency is 2-3 times of steam boiler, has saved fuel cost.In addition, the conduction oil circulation time almost all returns waste heat, and the condensed water that has formed in drying cylinder when having avoided steam heating is to consumption of heat energy, and then has reduced operating cost.
2, owing to be provided with heat-conducting oil pipes in the drying cylinder, conduction oil normal pressure operation therein, so the specification requirement of drying cylinder significantly reduces, thus alleviated the weight of drying cylinder, reduced the manufacturing cost of drying cylinder, the electric load when also having alleviated simultaneously operation.
3, this heat-supplying mode makes original auxiliary facility relevant with steam heating, significantly cuts down as the input of water treatment facilities, cleaner, water supply and drainage equipment etc., has dwindled the investment of founding the factory, and has saved fund.
Claims (6)
1, papermaking machine oil hot type drying cylinder, contain garden cylindricality cylinder body, there is cylinder cap at the two ends of garden cylindricality cylinder body, the outside, two cylinder cap axle center is a spindle nose, oil feed line communicates with inner chamber of cylinder block by the hollow bulb of spindle nose, it is characterized in that the inwall around cylinder body, and the heat-conducting oil pipes that is connected as a single entity with inboard wall of cylinder block is arranged, heat-conducting oil pipes is made to connect wall type and is arranged, and its in-out end links by the hollow bulb and the oil feed line of spindle nose.
2, papermaking machine oil hot type drying cylinder as claimed in claim 1 is characterized in that heat-conducting oil pipes centers on the setting of inboard wall of cylinder block helical form.
3, papermaking machine oil hot type drying cylinder as claimed in claim 2 is characterized in that the helical form heat-conducting oil pipes is made of inboard wall of cylinder block and spiral helicine semicanal.
4, papermaking machine oil hot type drying cylinder as claimed in claim 1 is characterized in that heat-conducting oil pipes centers on inboard wall of cylinder block, arranges with the cylinder body axis parallel to be provided with.
5, papermaking machine oil hot type drying cylinder as claimed in claim 4 is characterized in that the heat-conducting oil pipes that is arranged in parallel is made of inboard wall of cylinder block and the semicanal that is arranged in parallel.
6, making the papermaking machine oil hot type drying cylinder of stating as claim 2,4, it is characterized in that two cylinder caps are spoke-like, fixedlys connected with cylinder body in the cylinder cap outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213098 CN2466205Y (en) | 2001-03-09 | 2001-03-09 | Oil-heated drying cylinder for papermaking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213098 CN2466205Y (en) | 2001-03-09 | 2001-03-09 | Oil-heated drying cylinder for papermaking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466205Y true CN2466205Y (en) | 2001-12-19 |
Family
ID=33632148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213098 Expired - Fee Related CN2466205Y (en) | 2001-03-09 | 2001-03-09 | Oil-heated drying cylinder for papermaking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2466205Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383330A (en) * | 2011-11-09 | 2012-03-21 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Steel welding heat conducting oil drying cylinder |
| CN106223100A (en) * | 2016-08-24 | 2016-12-14 | 轻工业杭州机电设计研究院 | There is the paper machine dryer that tubular type is jacket structured |
| CN109403122A (en) * | 2018-12-28 | 2019-03-01 | 安德里茨（中国）有限公司 | Continuous drying drying cylinder |
| CN110592994A (en) * | 2019-10-17 | 2019-12-20 | 齐鲁工业大学 | Heat conduction oil dryer with phase change constant temperature |
-
2001
- 2001-03-09 CN CN 01213098 patent/CN2466205Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383330A (en) * | 2011-11-09 | 2012-03-21 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Steel welding heat conducting oil drying cylinder |
| CN106223100A (en) * | 2016-08-24 | 2016-12-14 | 轻工业杭州机电设计研究院 | There is the paper machine dryer that tubular type is jacket structured |
| CN106223100B (en) * | 2016-08-24 | 2018-03-27 | 轻工业杭州机电设计研究院 | With the jacket structured paper machine dryer of tubular type |
| CN109403122A (en) * | 2018-12-28 | 2019-03-01 | 安德里茨（中国）有限公司 | Continuous drying drying cylinder |
| CN110592994A (en) * | 2019-10-17 | 2019-12-20 | 齐鲁工业大学 | Heat conduction oil dryer with phase change constant temperature |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |