CN101929097A - Steam knife impacted water-ring testing device in papermaking dryer - Google Patents
Steam knife impacted water-ring testing device in papermaking dryer Download PDFInfo
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- CN101929097A CN101929097A CN 201010266426 CN201010266426A CN101929097A CN 101929097 A CN101929097 A CN 101929097A CN 201010266426 CN201010266426 CN 201010266426 CN 201010266426 A CN201010266426 A CN 201010266426A CN 101929097 A CN101929097 A CN 101929097A
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- drying cylinder
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Abstract
The invention discloses a steam knife impacted water-ring testing device in a papermaking dryer. The device comprises a bracket and a motor arranged on the bracket, wherein the motor is coupled with a frequency converter; the bracket is provided with a transparent dryer; the dryer is connected with the motor through a coupling; a gas collecting pipe is arranged on the inner wall of the dryer, and is connected with an air compressor through a gas inlet pipe with a pressure gauge; two ends of the gas collecting pipe are provided with plugs for sealing; and a plurality of orifices are reserved on the gas collecting pipe. The steam knife impacted water-ring testing device in the papermaking dryer can test the disturbance state of a water ring in the cylinder of the dryer under the action of an air steam knife so as to provide a new design idea for the high-efficiency and energy-saving high-speed papermaking dryer; and due to the transparent dryer structure, the forming condition of the water ring on the inner wall of the dryer can be observed conveniently, the test result is observed and recorded conveniently, and air pressure and other parameters can be set and monitored conveniently by the pressure gauge.
Description
Technical field
The invention belongs to the paper-making drying cylinder technical field, be specifically related to a kind of steam knife impacted water-ring testing device in papermaking dryer.
Background technology
In the industry papermaking, energy consumption is more greatly a problem that needs to be resolved hurrily.Concerning long mesh paper making machine, the energy consumption of drying section accounts for the over half of whole paper machine, and the appropriate design of drying section improves output for saving construction investment, guarantees the end product quality and the extremely close relation that reduced production costs.
Drying cylinder is the drying section critical component, also is the highly energy-consuming parts, so one of focus that drying cylinder is energy-conservation research to be paid close attention to.When speed during greater than 400m/min, condensed water can form water ring all attached on the drying cylinder inwall, because the thermal conductivity ratio iron and steel of condensed water is little 87 times, and the water ring that forms on the drying cylinder inwall, heat transfer resistance is bigger, directly influences heat transfer efficiency.
In order to reduce the influence of water ring for the water vapour heat transfer efficiency, the someone proposes new departure: add a liner at the drying cylinder inwall, the space feeds water vapour between liner and the drying cylinder inwall, by steam pressure interbedded water ring is pressed in the middle of the liner.Thereby make the condensation water layer attenuate between steam and the drying cylinder inwall.But the steam pressure that this method needs is higher, and the structure more complicated of drying cylinder, and manufacturing and dynamic balancing are difficult to solve.
Chinese patent " a kind of steam knife type aqueous vapor injection apparatus in paper-making drying cylinder " (publication number: CN101349026, open day: 2009-01-21), the purpose of this invention is to provide a kind of condensate water ring thickness attenuate that high speed drying cylinder inwall is formed, and make the thin layer water ring of drying cylinder inwall existence be in state of disturbance, thereby improve the steam knife type aqueous vapor injection apparatus in paper-making drying cylinder of paper quality.
Summary of the invention
The object of the present invention is to provide a kind of easy to operate steam knife impacted water-ring testing device in papermaking dryer.
At above-mentioned technical problem, the present invention proposes following technical scheme: comprise support and be arranged on motor and drying cylinder on the support, drying cylinder links to each other with motor by shaft coupling, drying cylinder inwall place is provided with airtight discharge, discharge links to each other with air compressor by having manometric air inlet pipe, and offers several spray orifices on discharge.
Motor of the present invention and frequency converter are coupled; The two ends of discharge are provided with the plug that is used to seal; Drying cylinder adopts transparent lucite to make; The drying cylinder end faces of both sides is provided with spindle nose, and support is provided with bearing, and bearing links to each other with spindle nose, and shaft coupling links to each other with the bearing of drying cylinder one side; Support is provided with the fixed mount that is used to support air inlet pipe; Discharge is the heavy wall rectangular tube.
Beneficial effect of the present invention is embodied in: steam knife impacted water-ring testing device in papermaking dryer of the present invention can be tested the caused state of disturbance under the effect of air vapour cutter of water ring in the drying cylinder cylindrical shell, thereby provides a kind of new design idea and experiment to support for designing energy-efficient high speed paper-making drying cylinder; Steam knife impacted water-ring testing device in papermaking dryer of the present invention adopts transparent drying cylinder structure, can observe the formation situation of water ring on the drying cylinder inwall easily, and help observation and record to result of the test, simultaneously, steam knife impacted water-ring testing device in papermaking dryer of the present invention has made things convenient for the pressure and other parameters of air is set and monitored by Pressure gauge is set.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of discharge of the present invention.
The specific embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 1, Fig. 2, the present invention includes support 13 and be arranged on motor 2 on the support 13, motor 2 is coupled with frequency converter 1, support 13 is provided with transparent drying cylinder 6, drying cylinder 6 adopts lucite to make, drying cylinder 6 end faces of both sides are provided with spindle nose 5, support 13 is provided with bearing 4, bearing 4 links to each other with spindle nose 5, and shaft coupling 3 links to each other with the bearing 4 of drying cylinder 6 one sides, and drying cylinder 6 links to each other with motor 2 by shaft coupling 3, drying cylinder 6 inwall places are provided with discharge 7, discharge 7 links to each other with air compressor 12 by the air inlet pipe 9 that has Pressure gauge 11, and support 13 is provided with the fixed mount 10 that is used to support air inlet pipe 9, and discharge 7 is heavy wall rectangular tubes, the two ends of discharge 7 are provided with the plug 8 that is used to seal, and offer several spray orifices 15 on the discharge 7.
During installation, adopt the discharge 7 that offers spray orifice 15 mode of welding to be communicated with air inlet pipe 9 earlier, and discharge 7 two ends are sealed with plug 8, then discharge 7 and partial-air admission pipe 9 are packed in the drying cylinder 6 by the perforate that runs through spindle nose 5 and drying cylinder 6 end faces, then spindle nose 5 is screwed on the end face of drying cylinder 6, after being fixed by bolts to bearing 4 on the support 13, just drying cylinder 6 can be arranged on the support 13 by bearing 4 and being connected of spindle nose 5, it is fixing and air inlet pipe 9 is connected to air compressor 12 by fixed mount 10 to stretch out outer air inlet pipe 9 parts of drying cylinder 6 at last, motor 2 is installed on the support 13 by bolt, and motor 2 is connected with the bearing 4 of drying cylinder 6 one sides by shaft coupling 3.
During test, actuating motor 2 also uses frequency converter 1 to regulate the revolution of motor 2, observe the formation situation of drying cylinder 6 internal face water rings, after the drying cylinder inwall forms stable water ring, keep motor 2 revolutions constant, use air compressor 12 air feed then, air enters air inlet pipe 9 successively, discharge 7, again by directly one of processing row's spray orifice 15 ejections on the discharge 7, the air of ejection forms so-called " vapour cutter " between spray orifice 15 and drying cylinder 6 inwalls at a high speed, along with the vapour cutter begins to impact at the formed stable water ring of drying cylinder 6 internal faces, can write down the real-time empty atmospheric pressure according to the demonstration of air inlet pipe 9 upward pressure tables 11, and impact the state of disturbance that drying cylinders 6 internal face water rings cause with high-speed camera 14 record vapour cuttves; Change the supply gas pressure of air compressor 12 or number, the aperture of discharge 7 spray orifices 15, and result of the test is carried out corresponding record.
Claims (7)
1. steam knife impacted water-ring testing device in papermaking dryer, it is characterized in that: comprise support (13) and be arranged on motor (2) and drying cylinder (6) on the support (3), drying cylinder (6) links to each other with motor (2) by shaft coupling (3), drying cylinder (6) inwall place is provided with airtight discharge (7), discharge (7) links to each other with air compressor (12) by the air inlet pipe (9) that has Pressure gauge (11), and offers several spray orifices (15) on discharge (7).
2. steam knife impacted water-ring testing device in papermaking dryer according to claim 1 is characterized in that: described motor (2) is coupled with frequency converter (1).
3. steam knife impacted water-ring testing device in papermaking dryer according to claim 1 is characterized in that: the two ends of described discharge (7) are provided with the plug (8) that is used to seal.
4. steam knife impacted water-ring testing device in papermaking dryer according to claim 1 is characterized in that: described drying cylinder 6 adopts transparent lucite to make.
5. steam knife impacted water-ring testing device in papermaking dryer according to claim 1, it is characterized in that: described drying cylinder (6) end faces of both sides is provided with spindle nose (5), support (13) is provided with bearing (4), bearing (4) links to each other with spindle nose (5), and shaft coupling (3) links to each other with the bearing (4) of drying cylinder (6) one sides.
6. steam knife impacted water-ring testing device in papermaking dryer according to claim 1 is characterized in that: described support (13) is provided with the fixed mount (10) that is used to support air inlet pipe (9).
7. steam knife impacted water-ring testing device in papermaking dryer according to claim 1 is characterized in that: described discharge (7) is the heavy wall rectangular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010266426 CN101929097A (en) | 2010-08-30 | 2010-08-30 | Steam knife impacted water-ring testing device in papermaking dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010266426 CN101929097A (en) | 2010-08-30 | 2010-08-30 | Steam knife impacted water-ring testing device in papermaking dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929097A true CN101929097A (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010266426 Pending CN101929097A (en) | 2010-08-30 | 2010-08-30 | Steam knife impacted water-ring testing device in papermaking dryer |
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| CN (1) | CN101929097A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308554A (en) * | 1966-06-22 | 1967-03-14 | Overton Glen | Drying cylinder |
| US3325910A (en) * | 1964-03-17 | 1967-06-20 | Waertsilae Oy Ab | Drying cylinder for drying the wet material web for instance in paper and cellulose machines |
| US3426839A (en) * | 1966-12-05 | 1969-02-11 | Glen Overton | Drying cylinder |
| 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 |
| CN201236297Y (en) * | 2008-07-04 | 2009-05-13 | 陕西科技大学 | Cylinder type intermediate layer multicenter drying cylinder |
-
2010
- 2010-08-30 CN CN 201010266426 patent/CN101929097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3325910A (en) * | 1964-03-17 | 1967-06-20 | Waertsilae Oy Ab | Drying cylinder for drying the wet material web for instance in paper and cellulose machines |
| US3308554A (en) * | 1966-06-22 | 1967-03-14 | Overton Glen | Drying cylinder |
| US3426839A (en) * | 1966-12-05 | 1969-02-11 | Glen Overton | Drying cylinder |
| CN201236297Y (en) * | 2008-07-04 | 2009-05-13 | 陕西科技大学 | Cylinder type intermediate layer multicenter drying cylinder |
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101229 |