CN114197241B - Paper machine humidifier with condensation water prevention heat preservation nozzle - Google Patents
Paper machine humidifier with condensation water prevention heat preservation nozzle Download PDFInfo
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- CN114197241B CN114197241B CN202111388123.3A CN202111388123A CN114197241B CN 114197241 B CN114197241 B CN 114197241B CN 202111388123 A CN202111388123 A CN 202111388123A CN 114197241 B CN114197241 B CN 114197241B
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- heat preservation
- steam box
- steam
- pipe
- nozzle
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G7/00—Damping devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a paper machine humidifier with an anti-condensation water heat preservation nozzle, which belongs to the technical field of paper production and comprises an upper steam box and a lower steam box, wherein the upper steam box is positioned right above the lower steam box, sealing sleeves are arranged on the outer walls of one sides of the upper steam box and the lower steam box, a nozzle assembly and a heat preservation assembly are arranged in the sealing sleeves, preheating pipes and a humidifying and steam-distributing assembly are arranged in the inner cavities of the upper steam box and the lower steam box, the heat preservation assembly is connected with the preheating pipes, and the nozzle assembly is connected with the humidifying and steam-distributing assembly. The preheating pipe preheats the upper steam box and the lower steam box firstly, so that steam in the humidifying and steam distributing assembly is prevented from being condensed, the preheating pipe conducts steam circulation through the heat preservation assembly, heat preservation and heating are conducted in the sealing sleeve, the nozzle assembly can isolate condensed water, condensation water is prevented from being directly sprayed out, the heat preservation assembly is used for carrying out secondary heating on the condensation water isolated in the nozzle assembly, the stored condensation water is evaporated to form steam, condensation water accumulation is prevented, and the purpose of preventing the condensation water is achieved.
Description
Technical Field
The invention relates to the technical field of paper production, in particular to a paper machine humidifier with an anti-condensation heat preservation nozzle.
Background
The steam humidifier is used as an effective means for adjusting and improving the smoothness and glossiness of the finished paper, and is widely applied to high-demand paper production lines such as newsprint, glassine paper and copy paper in the 80 s of the 20 th century; the humidifier is arranged in front of a calender of a paper machine, so that the moisture distribution of a paper-forming banner can be effectively improved, the consistency of the paper-forming smoothness after calendering is improved, the product quality is improved, the current paper machine humidifier is used for directly spraying steam onto the paper through a nozzle, the problem of temperature reduction exists when the steam flows in a pipeline, so that condensed water is generated in an inner cavity of the pipeline or the nozzle, and the condensed water drops are sprayed onto the paper along with the steam to form paper diseases, and the paper quality is influenced.
Disclosure of Invention
The invention aims to provide a paper machine humidifier with an anti-condensation water heat preservation nozzle, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a paper machine humidifier with prevent condensate water heat preservation nozzle, includes steam ager and lower steam ager, go up the steam ager and be located directly over the steam ager down, go up the equal fixed mounting seal cover of one side outer wall of steam ager and lower steam ager, the nozzle assembly is all installed to one side that the seal cover is close to, install the heat preservation subassembly between one side that the seal cover kept away from mutually, go up the preheating tube is installed to one side inner chamber that steam ager and lower steam ager are close to mutually, the preheating tube is connected to the heat preservation subassembly, go up steam ager and lower steam ager inner chamber and all install humidification steam distribution subassembly, the humidification steam distribution subassembly is connected to the nozzle assembly.
In a preferred embodiment, the upper steam box and the lower steam box are mounted on the frame, the upper steam box and the lower steam box are parallel to each other, a gap between the upper steam box and the lower steam box forms a paper conveying channel, and one end of the paper conveying channel, which is close to the sealing sleeve, is a paper inlet.
The preferred embodiment, the seal cover includes the cover body, go up the outer wall of steam chest and lower steam chest all fixed welding has the cover body, the inner chamber of the cover body forms the heat preservation chamber, two the one side that the cover body is close to is opened has the stretch out the mouth, stretch out mouth intercommunication heat preservation chamber, stretch out mouth department installation nozzle assembly, heat preservation intracavity installation heat preservation assembly.
In a preferred implementation case, one surface of the sleeve body, which is close to the extension opening, is of a concave V-shaped structure, and the inner wall of the extension opening is tightly attached to the nozzle assembly.
The preferred embodiment, the nozzle assembly includes the buffer tube, be equipped with a plurality of buffer tubes in the heat preservation intracavity, a plurality of the terminal surface of buffer tube closely laminates, the circumference outer wall of buffer tube closely laminates the inner wall of extending the mouth, the lateral wall of buffer tube passes through screw structure and cup joints the steam inlet, the steam inlet runs through the outer wall of last steam chest and lower steam chest and connects humidification steam extraction component, the buffer tube is close to the outer wall of extending the mouth and cup joints the shower nozzle through screw structure.
In a preferred embodiment, the sum of the lengths of a plurality of the buffer tubes is equal to the length of the heat preservation cavity, and the end of the spray head, which is far away from the extension port, penetrates to the middle part of the inner cavity of the buffer tube.
The preferred embodiment, the heat preservation subassembly includes the heat preservation heating pipe, heat preservation heating pipe fixed mounting is between the inner wall in heat preservation chamber, the one end circumference outer wall of heat preservation heating pipe cup joints the one end of connector through the helicitic texture, the other end of connector runs through the outer wall of last steam chest and lower steam chest and connects the preheating tube, the cover body is kept away from the fixed communicating pipe that cup joints between the terminal surface of one end of connector, the terminal surface of two cover bodies and fixed connection two heat preservation heating pipes is run through respectively at the both ends of communicating pipe.
In a preferred embodiment, the preheating pipe comprises a coil pipe, the inner walls of the upper steam box and the lower steam box are fixedly clamped with the coil pipe, two ends of the coil pipe are respectively provided with a first connecting pipe and a second connecting pipe in an integrated manner, the first connecting pipes are respectively connected with the connectors through hoses, the second connecting pipe in the upper steam box is connected with the preheating steam inlet pipe, and the second connecting pipe in the lower steam box is connected with the preheating steam outlet pipe.
In a preferred embodiment, the coil pipe is a plurality of U-shaped bent serpentine structures connected end to end, the first connecting pipe and the second connecting pipe are both inclined structures, and the preheating steam inlet pipe is connected with high-temperature saturated steam.
The preferred embodiment, humidification branch vapour subassembly includes the minute bubble, go up the equal fixed mounting minute bubble of steam chest and lower steam chest inner wall, the equal fixed connection dry steam of one side of minute bubble advances the pipe, the opposite side fixed connection a plurality of branch vapour hose's of minute bubble one end, the other end of branch vapour hose is fixed connection admission head respectively, equal fixed mounting has the governing valve on the branch vapour hose.
The invention has the beneficial effects that:
1. the nozzle assembly is sealed and wrapped through the sealing sleeve, so that heat loss is reduced, and condensate water is avoided;
2. the preheated steam flows through the connector, the heat-preserving heating pipe and the communicating pipe, so that the heat-preserving heating pipe heats and preserves heat of the heat-preserving cavity, the nozzle assembly is preserved, and condensate water is further reduced;
3. humidification steam enters the buffer tube through the steam inlet head, the spray head stretches into the buffer tube, a small amount of condensed water cannot be sprayed out along the spray head directly, the condensed water can be isolated in the buffer tube, the condensed water is heated and evaporated again through high temperature in the heat preservation cavity, and finally sprayed out, so that the condensed water is prevented from dripping on paper, and the paper quality is improved.
Drawings
Fig. 1 is a schematic structural view of a paper machine humidifier with an anti-condensation heat preservation nozzle according to an embodiment of the present invention.
Fig. 2 is a schematic view of the installation structure of the upper steam box and the lower steam box of the invention.
Fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present invention.
Fig. 4 is a schematic diagram of the seal sleeve structure of the present invention.
Figure 5 is a schematic view of a cross-sectional structure of a sealing sleeve according to the present invention.
FIG. 6 is a schematic diagram of the preheating tube structure of the present invention.
Fig. 7 is a schematic structural diagram of a humidifying and steam-distributing assembly according to the present invention.
In the figure: 1. a steam box is arranged; 2. a lower steam box; 3. sealing sleeve; 31. a sleeve body; 32. a heat preservation cavity; 33. an outlet; 4. a thermal insulation assembly; 41. a heat preservation heating pipe; 42. a connector; 43. a communicating pipe; 5. a nozzle assembly; 51. a buffer tube; 52. a steam inlet head; 53. a spray head; 6. a preheating tube; 61. a coiled pipe; 62. a first connection pipe; 63. a second connection pipe; 7. preheating a steam inlet pipe; 8. a preheating steam outlet pipe; 9. a humidifying and steam-dividing component; 91. a dry steam inlet pipe; 92. dividing air bubbles; 93. a steam-dividing hose; 94. a regulating valve; 10. a frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: as shown in fig. 1 to 7, the invention provides a paper machine humidifier with an anti-condensation heat preservation nozzle, which comprises an upper steam box 1 and a lower steam box 2, wherein the upper steam box 1 is positioned right above the lower steam box 2, sealing sleeves 3 are fixedly arranged on the outer walls of one sides of the upper steam box 1 and the lower steam box 2, a nozzle assembly 5 is arranged on the side, close to the sealing sleeves 3, of the sealing sleeves 3, a heat preservation assembly 4 is arranged between the sides, far away from the sealing sleeves 3, of the upper steam box 1 and the lower steam box 2, a preheating pipe 6 is arranged in the inner cavity, close to the side, of the upper steam box 1 and the lower steam box 2, of the heat preservation assembly 4 is connected with the preheating pipe 6, humidification steam-distributing assemblies 9 are arranged in the inner cavities of the upper steam box 1 and the lower steam box 2, and the nozzle assembly 5 is connected with the humidification steam-distributing assemblies 9. The preheating pipe 6 preheats the upper steam box 1 and the lower steam box 2 firstly, so that steam in the humidifying and steam distributing component 9 is prevented from being condensed, the preheating pipe 6 conducts steam circulation through the heat preservation component 4, so that heat preservation and heating are conducted in the sealing sleeve 3, the nozzle component 5 can isolate condensed water, condensation water is prevented from being directly sprayed out, the condensation water isolated in the nozzle component 5 is subjected to secondary heating through the heat preservation component 4, the stored condensation water is evaporated to form steam, condensation water accumulation is prevented, and the purpose of preventing condensation water is achieved.
The upper steam box 1 and the lower steam box 2 are arranged on the frame 10, the upper steam box 1 and the lower steam box 2 are parallel to each other, a gap between the upper steam box 1 and the lower steam box 2 forms a paper conveying channel, and one end of the paper conveying channel, which is close to the sealing sleeve 3, is a paper inlet.
The seal cover 3 includes the cover body 31, go up the outer wall of steam box 1 and lower steam box 2 and all fixedly welded with the cover body 31, the inner chamber of the cover body 31 forms heat preservation chamber 32, the one side that two cover bodies 31 are close to is opened has the export 33, the export 33 intercommunication heat preservation chamber 32, the spout subassembly 5 is installed to export 33 department, install the heat preservation subassembly 4 in the heat preservation chamber 32, the one side that the cover body 31 is close to the export 33 is concave V type structure, the inner wall of export 33 closely laminates the spout subassembly 5, then seal the heat preservation heating to the spout subassembly 5 through the seal cover 3, avoid producing the comdenstion water, and heat evaporation to a small amount of condensate water.
The nozzle assembly 5 comprises a buffer tube 51, a plurality of buffer tubes 51 are arranged in the heat preservation cavity 32, the end faces of the buffer tubes 51 are tightly attached, the circumference outer wall of the buffer tube 51 is tightly attached to the inner wall of the outlet 33, the side wall of the buffer tube 51 is sleeved with a steam inlet head 52 through a thread structure, the steam inlet head 52 penetrates through the outer walls of the upper steam box 1 and the lower steam box 2 and is connected with the humidifying steam-distributing assembly 9, the outer wall of the buffer tube 51, close to the outlet 33, is sleeved with a spray head 53 through the thread structure, the sum of the lengths of the buffer tubes 51 is equal to the length of the heat preservation cavity 32, and one end of the spray head 53, far away from the outlet 33, penetrates through the middle part of the inner cavity of the buffer tube 51.
The heat preservation subassembly 4 includes heat preservation heating pipe 41, heat preservation heating pipe 41 fixed mounting is between the inner wall of heat preservation chamber 32, the one end circumference outer wall of heat preservation heating pipe 41 cup joints the one end of connector 42 through the helicitic texture, the other end of connector 42 runs through the outer wall of upper steam box 1 and lower steam box 2 and connects preheating pipe 6, the cover body 31 is kept away from the one end terminal surface of connector 42 between fixed communicating pipe 43 of cup jointing, the both ends of communicating pipe 43 run through two cover bodies 31 respectively and the terminal surface of two heat preservation heating pipes 41 of fixed connection.
The heat preservation heating pipe 41 is communicated through the communicating pipe 43, the connector 42 is connected with the preheating pipe 6, so that the heat preservation cavities 32 in the two sealing sleeves 3 are necessarily heated when preheating steam flows, humidifying steam enters the buffer tube 51 through the steam inlet head 52, the spray head 53 stretches into the buffer tube 51, a small amount of condensed water cannot be sprayed out directly along the spray head 53, the condensed water can be isolated in the buffer tube 51, the condensed water is reheated and evaporated through high temperature in the heat preservation cavities 32, and finally sprayed out, so that the condensed water is prevented from dripping on paper, and the paper quality is improved.
The preheating pipe 6 includes coil pipe 61, go up the equal fixed joint coil pipe 61 of inner wall of steam chest 1 and lower steam chest 2, the both ends of coil pipe 61 integrated into one piece respectively are equipped with first connecting pipe 62 and second connecting pipe 63, first connecting pipe 62 is respectively through hose connection connector 42, the preheating steam advances pipe 7 is connected to the second connecting pipe 63 in the last steam chest 1, the preheating steam exit tube 8 is connected to the second connecting pipe 63 in the lower steam chest 2, coil pipe 61 is the crooked snakelike structure of a plurality of U type structures end to end, first connecting pipe 62 and second connecting pipe 63 are the slope structure, preheating steam advances pipe 7 and connects high temperature saturated steam.
The humidifying and steam distributing assembly 9 comprises a steam distributing bubble 92, the inner walls of the upper steam box 1 and the lower steam box 2 are fixedly provided with the steam distributing bubble 92, one side of the steam distributing bubble 92 is fixedly connected with a dry steam inlet pipe 91, the other side of the steam distributing bubble 92 is fixedly connected with one ends of a plurality of steam distributing hoses 93, the other ends of the steam distributing hoses 93 are respectively and fixedly connected with a steam inlet head 52, and regulating valves 94 are fixedly arranged on the steam distributing hoses 93.
The preheating steam inlet pipe 7 provides high-temperature steam, so that the preheating is facilitated, the heat preservation cavity 32 is heated in a heat preservation mode, steam flowing out of the preheating steam outlet pipe 8 is subjected to split flow and temperature control and pressure control treatment, steam filtration is carried out to remove condensed water, then the condensed water enters the split bubbles 92 through the dry steam inlet pipe 91, and the flow is regulated through the regulating valve 94 and then is sprayed out of the spray heads 53.
During the use, preheat steam admission pipe 7 provides for high temperature steam, preheat last steam chest 1 and lower steam chest 2 through coil pipe 61, preheat steam and circulate through connector 42, heat preservation heating pipe 41 and communicating pipe 43, thereby make heat preservation heating pipe 41 heat preservation chamber 32, steam that preheat steam exit tube 8 flows carries out steam filtration and gets rid of the comdenstion water after reposition of redundant personnel and accuse temperature accuse pressure treatment, then get into bubble 92 through dry steam admission pipe 91, get into steam admission head 52 after adjusting the flow through governing valve 94, get into buffer tube 51 through steam admission head 52, shower nozzle 53 stretches into in the buffer tube 51, then a small amount of condensate can not spout along shower nozzle 53 directly, the condensate can be kept apart in buffer tube 51, carry out the reheat evaporation through the high temperature in the heat preservation chamber 32, finally spout, avoid the paper to drip condensate, improve paper quality.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Paper machine humidifier with prevent condensation water heat preservation nozzle, including last steam chest (1) and lower steam chest (2), its characterized in that: the upper steam box (1) is positioned right above the lower steam box (2), a sealing sleeve (3) is fixedly arranged on the outer wall of one side of the upper steam box (1) and the lower steam box (2), a nozzle component (5) is arranged on one side, close to the sealing sleeve (3), of the upper steam box (1), a heat preservation component (4) is arranged between one side, far away from the sealing sleeve (3), of the upper steam box (1) and the lower steam box (2), a preheating pipe (6) is arranged in an inner cavity, close to one side, of the upper steam box (1) and the lower steam box (2), the preheating pipe (6) is connected with the heat preservation component (4), the inner cavities of the upper steam box (1) and the lower steam box (2) are respectively provided with a humidifying steam distributing component (9), the upper steam box (1) and the lower steam box (2) are respectively arranged on a frame (10), gaps between the upper steam box (1) and the lower steam box (2) are mutually parallel, the upper steam box (1) and the lower steam box (2) form a paper conveying channel, the conveying channel is close to one end of the inner cavity (31), the upper steam box (31) and the lower steam box (2) are respectively welded with the inner cavity (31), two the one side that cover body (31) is close to is opened has and is stretched out mouth (33), stretch out mouth (33) intercommunication heat preservation chamber (32), stretch out mouth (33) department installation nozzle assembly (5), install heat preservation subassembly (4) in heat preservation chamber (32), the one side that cover body (31) is close to and stretches out mouth (33) is indent V type structure, stretch out the inner wall of mouth (33) and closely laminate nozzle assembly (5), nozzle assembly (5) include buffer tube (51), be equipped with a plurality of buffer tubes (51) in heat preservation chamber (32), a plurality of the terminal surface of buffer tube (51) is closely laminated, the circumference outer wall of buffer tube (51) is closely laminated and is stretched out the inner wall of mouth (33), the lateral wall of buffer tube (51) cup joints vapour head (52) through the helicitic texture, vapour head (52) are run through the outer wall of last vapour tank (1) and lower vapour tank (2) and are connected humidification vapour subassembly (9), the buffer tube (51) is close to the outer wall that stretches out mouth (33) and cup joints through the helicitic texture.
2. A paper machine humidifier with anti-condensation heat preservation nozzle as defined in claim 1, wherein: the sum of the lengths of a plurality of buffer tubes (51) is equal to the length of the heat preservation cavity (32), and one end of the spray head (53) away from the extension port (33) penetrates to the middle part of the inner cavity of the buffer tube (51).
3. A paper machine humidifier with anti-condensation heat preservation nozzle as defined in claim 1, wherein: the heat preservation subassembly (4) is including heat preservation heating pipe (41), heat preservation heating pipe (41) fixed mounting is between the inner wall in heat preservation chamber (32), the one end circumference outer wall of heat preservation heating pipe (41) cup joints the one end of connector (42) through the helicitic texture, the other end of connector (42) runs through the outer wall of last steam chest (1) and lower steam chest (2) and connects preheating tube (6), fixed sleeve joint communicating pipe (43) between the one end terminal surface that connector (42) was kept away from to cover body (31), the terminal surface of two heat preservation heating pipes (41) of two cover bodies (31) and fixed connection are run through respectively at the both ends of communicating pipe (43).
4. A paper machine humidifier with anti-condensation heat preservation nozzle as defined in claim 1, wherein: the preheating pipe (6) comprises a coil pipe (61), clamping coils (61) are fixed on the inner walls of the upper steam box (1) and the lower steam box (2), a first connecting pipe (62) and a second connecting pipe (63) are arranged at two ends of the coils (61) in an integrated manner respectively, the first connecting pipes (62) are connected with the connecting heads (42) through hoses respectively, the second connecting pipe (63) in the upper steam box (1) is connected with the preheating steam inlet pipe (7), and the second connecting pipe (63) in the lower steam box (2) is connected with the preheating steam outlet pipe (8).
5. A paper machine humidifier with anti-condensation heat preservation nozzle as defined in claim 4, wherein: the coil pipe (61) is of a plurality of U-shaped bent serpentine structures which are connected end to end, the first connecting pipe (62) and the second connecting pipe (63) are of inclined structures, and the preheating steam inlet pipe (7) is connected with high-temperature saturated steam.
6. A paper machine humidifier with anti-condensation heat preservation nozzle as defined in claim 1, wherein: humidification branch vapour subassembly (9) are including dividing bubble (92), go up steam chest (1) and lower steam chest (2) inner wall equal fixed mounting branch bubble (92), the equal fixed connection dry steam of one side of dividing bubble (92) advances pipe (91), the opposite side fixed connection of dividing bubble (92) a plurality of steam-dividing hose (93) one end, the other end of dividing hose (93) is fixed connection admission head (52) respectively, all fixed mounting has governing valve (94) on dividing hose (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388123.3A CN114197241B (en) | 2021-11-22 | 2021-11-22 | Paper machine humidifier with condensation water prevention heat preservation nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388123.3A CN114197241B (en) | 2021-11-22 | 2021-11-22 | Paper machine humidifier with condensation water prevention heat preservation nozzle |
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| CN114197241A CN114197241A (en) | 2022-03-18 |
| CN114197241B true CN114197241B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111388123.3A Active CN114197241B (en) | 2021-11-22 | 2021-11-22 | Paper machine humidifier with condensation water prevention heat preservation nozzle |
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| GB1148097A (en) * | 1966-10-20 | 1969-04-10 | Fmc Corp | Method and apparatus for humidifying hydrophilic materials |
| US4915788A (en) * | 1987-01-20 | 1990-04-10 | V.I.B. Apparatebau Gmbh | Method of contacting running webs with steam |
| US5211813A (en) * | 1990-03-09 | 1993-05-18 | Sawley David J | Steam shower with reduced condensate drip |
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| CN104195866A (en) * | 2014-08-26 | 2014-12-10 | 华南理工大学 | Secondary adjusting steam box and method for adjusting paper horizontal web water content |
| CN104988787A (en) * | 2015-07-08 | 2015-10-21 | 华南理工大学 | Steam device and method for adjusting moisture of paper sheet by using vacuum degree |
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| Publication number | Publication date |
|---|---|
| CN114197241A (en) | 2022-03-18 |
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