TW202130881A - Sealing method and device for suction roll - Google Patents
Sealing method and device for suction roll Download PDFInfo
- Publication number
- TW202130881A TW202130881A TW109130555A TW109130555A TW202130881A TW 202130881 A TW202130881 A TW 202130881A TW 109130555 A TW109130555 A TW 109130555A TW 109130555 A TW109130555 A TW 109130555A TW 202130881 A TW202130881 A TW 202130881A
- Authority
- TW
- Taiwan
- Prior art keywords
- suction
- suction roller
- gap
- peripheral surface
- negative pressure
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/48—Suction apparatus
- D21F1/50—Suction boxes with rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
- D21F3/105—Covers thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
Description
本發明係關於設在配置於吸輥的內空部之吸引箱的框帶,將與吸輥的內周面對向而區劃於吸引箱的內部之負壓室進行密封用的吸輥之密封方法及装置。The present invention relates to the sealing of the suction roller used to seal the frame belt of the suction box arranged in the inner space of the suction roller, and the suction roller is sealed in a negative pressure chamber that faces the inner circumferential surface of the suction roller and is partitioned inside the suction box. Method and device.
在抄紙機的脫水製程,如專利文獻1所記載,在吸輥的內空部配置吸引箱,使設在吸引箱的框帶滑接於吸輥的內周面而在該吸引箱的內部區劃負壓室,將吸引箱的負壓室維持於負壓,藉此,使在吸輥的外周面被搬運的濕紙的水分通過該吸輥的吸引孔而經由吸引箱之負壓室,進行脫水。
[先前技術文獻]
[專利文獻]In the dehydration process of a paper machine, as described in
[專利文獻1]日本特開2005-36329號公報[Patent Document 1] Japanese Patent Application Publication No. 2005-36329
[發明所欲解決之問題][The problem to be solved by the invention]
設在以往的吸引箱之框帶(deckle strap)對吸輥的內周面滑接,用以維持區劃於該吸引箱的內部之負壓室的負壓。因此,吸輥的內周面與框帶之摩擦大,故,造成框帶需要高頻率地進行更換,且吸輥的驅動能也變得龐大。又,為了謀求吸輥的內周面與框帶之摩擦的減低,被迫設置對框帶的滑動部供給潤滑用噴灑水之潤滑用噴灑器,或採用低摩擦係數的碳樹脂等作為框帶的材料,造成成本高漲。The deck strap provided in the conventional suction box is slidably connected to the inner peripheral surface of the suction roller to maintain the negative pressure of the negative pressure chamber partitioned inside the suction box. Therefore, the friction between the inner peripheral surface of the suction roller and the frame belt is large, so that the frame belt needs to be replaced at a high frequency, and the driving energy of the suction roller also becomes huge. In addition, in order to reduce the friction between the inner peripheral surface of the suction roller and the frame belt, it is forced to install a lubrication sprayer that supplies lubricating spray water to the sliding part of the frame belt, or use carbon resin with low friction coefficient as the frame belt. Materials, causing high costs.
本發明之課題在於既可使設在吸引箱之框帶(deckle strap)對吸輥的內周面非接觸,亦可維持區劃於該吸引箱的內部之負壓室的負壓。 [解決問題之技術手段]The subject of the present invention is to maintain the negative pressure of the negative pressure chamber partitioned inside the suction box without contacting the inner peripheral surface of the suction roller with the frame belt (deckle strap) provided in the suction box. [Technical means to solve the problem]
請求項1之發明,一種吸輥之密封方法,係在吸輥的內空部配置吸引箱,使設在吸引箱的框帶與吸輥的內周面相對向而在該吸引箱的內部區劃負壓室,將吸引箱的負壓室維持於負壓,藉此,使在吸輥的外周面被搬運的濕紙的水分通過該吸輥的吸引孔而經由吸引箱之負壓室,進行脫水的密封方法,其特徵為,在吸輥的內周面與框帶之間形成間隙,藉由對此間隙供給密封用流體,將該間隙進行液封。The invention of
請求項2之發明,係如請求項1之發明,其中,可調整形成於前述吸輥的內周面與框帶之間的間隙之大小。The invention of
請求項3之發明,一種吸輥之密封裝置,係在吸輥的內空部配置吸引箱,使設在吸引箱的框帶與吸輥的內周面相對向而在該吸引箱的內部區劃負壓室,將吸引箱的負壓室維持於負壓,藉此,使在吸輥的外周面被搬運的濕紙的水分通過該吸輥的吸引孔而經由吸引箱之負壓室,進行脫水的密封裝置,其特徵為,在吸輥的內周面與框帶之間形成間隙,並具有對前述間隙供給密封用流體而將該間隙進行液封之液封裝置。The invention of claim 3, a sealing device for a suction roller, a suction box is arranged in the hollow part of the suction roller, and the frame belt provided on the suction box is opposed to the inner peripheral surface of the suction roller to divide the inside of the suction box The negative pressure chamber maintains the negative pressure chamber of the suction box at a negative pressure, whereby the moisture of the wet paper conveyed on the outer peripheral surface of the suction roller passes through the suction hole of the suction roller and passes through the negative pressure chamber of the suction box. The sealing device for dehydration is characterized by forming a gap between the inner peripheral surface of the suction roller and the frame belt, and having a liquid sealing device that supplies a sealing fluid to the gap and liquid seals the gap.
請求項4之發明,係如請求項3之發明,其中,可調整形成於前述吸輥的內周面與框帶之間的間隙之大小。The invention of claim 4 is the invention of claim 3, wherein the size of the gap formed between the inner peripheral surface of the suction roller and the frame belt can be adjusted.
請求項5之發明,係如請求項3或4之發明,其中,前述液封裝置係具有流體供給路徑,該流體供給路徑係配設於框帶的內部,開口於沿著吸輥的內周面之該框帶的圓弧狀表面,並呈沿著吸輥的中心軸形成連續的狹縫狀,從該流體供給路徑朝向吸輥的內周面之流體的流出方向係對該吸輥的吸引孔呈非平行。 [發明效果]The invention of claim 5 is the invention of claim 3 or 4, wherein the liquid sealing device has a fluid supply path that is arranged inside the frame belt and opens along the inner circumference of the suction roller The arc-shaped surface of the frame belt on the surface is in the shape of a continuous slit along the central axis of the suction roller. The outflow direction of the fluid from the fluid supply path toward the inner peripheral surface of the suction roller is the direction of the suction roller. The suction holes are non-parallel. [Effects of the invention]
(請求項1、3)
(a)藉由在吸輥的內周面與框帶之間形成間隙,藉由對此間隙供給密封用流體,將該間隙進行液封,使得既可使設在吸引箱之框帶對吸輥的內周面非接觸,亦可維持區劃於該吸引箱的內部之負壓室的負壓。(
藉此,因框帶滑接於吸輥的內周面所引起之摩擦消失,可無限減低因框帶的磨耗所引起之更換頻率,亦可減低吸輥的驅動能。Thereby, the friction caused by the sliding of the frame belt on the inner peripheral surface of the suction roller disappears, the replacement frequency caused by the abrasion of the frame belt can be reduced infinitely, and the driving energy of the suction roller can also be reduced.
不需要對框帶的滑動部供給潤滑用噴灑水,也不需要採用低摩擦係數的碳樹脂等作為框帶的材料,能夠減低成本。There is no need to supply spray water for lubrication to the sliding part of the frame belt, and it is also unnecessary to use carbon resin with a low coefficient of friction as the material of the frame belt, which can reduce costs.
(請求項2、4)
(b)藉由作成為可調整前述(a)的間隙的大小,可因應吸輥的內徑及旋轉數、負壓室所需要的負壓、連接於負壓室的真空泵浦的流量等之操作條件,形成適當的間隙。(
(請求項5) (c)供給至前述(a)的間隙之密封用流體從配設於吸引箱的內部且沿著吸輥的中心軸形成為連續之狹縫狀的流體供給路徑被供給。因此,可對形成於吸輥的內周面與框帶之間的間隙的全區域,確實地供給密封用流體。(Request 5) (c) The sealing fluid supplied to the gap in (a) is supplied from a fluid supply path that is arranged in the suction box and formed in a continuous slit shape along the central axis of the suction roller. Therefore, the sealing fluid can be reliably supplied to the entire area of the gap formed between the inner peripheral surface of the suction roller and the frame band.
(d)從流體供給路徑朝向吸輥的內周面之流體的流出方向對該吸輥的吸引孔作成為非平行。因此,能夠迴避自流體供給路徑流出的流體貫通吸輥的吸引孔而飛散到處於該吸輥的外周面之濕紙的壞影響產生。(d) The outflow direction of the fluid from the fluid supply path toward the inner peripheral surface of the suction roller is made non-parallel to the suction hole of the suction roller. Therefore, it is possible to avoid the bad influence of the fluid flowing out from the fluid supply path passing through the suction hole of the suction roller and scattering to the wet paper on the outer peripheral surface of the suction roller.
圖1係顯示抄紙機的脫水製程,藉由對象輥2的壓力與生成於吸輥10的內部之負壓,將濕紙1的水分進行脫水(亦有不伴隨對象輥2的情況)。FIG. 1 shows the dehydration process of the paper machine. The moisture of the
吸輥10係伴隨配置於構成該吸輥10的單元10A的內空部之吸引箱20,以高速在此吸引箱20的周圍旋轉,並且,將區劃於吸引箱20的內部之負壓室21作成為負壓,藉此,將在吸輥10的外周面與該吸輥10的旋轉方向N相同方向被搬運的濕紙1所含的水分從貫通該吸輥10的單元10A之吸引孔11朝負壓室21吸引並進行脫水。連接於負壓室21之吸引導管12(圖2)係將連接於真空泵浦的該負壓室21作成為負壓,並且將被負壓室21吸引的水朝吸輥10及吸引箱20的外部進行回收。The
再者,吸輥10可為在單元10A的外周面具備橡膠加襯層者,在該情況之吸引孔11係為貫通單元10A及橡膠加襯層者。Furthermore, the
吸引箱20係藉由具備與構成吸輥10的單元10A的內周面對向而在該吸引箱20的內部區劃負壓室21之框帶30,可維持該負壓室21的負壓。再者,框帶30,一般係具有:配置於在吸輥10的周方向上隔著與負壓室21對應的部分之兩側(在吸輥10的旋轉方向N,進入負壓室21側之入口側、從負壓室21側出來之出口側)的主框帶30M、及配置吸輥10的軸方向的兩側之端框帶30E,使兩側的主框帶30M及兩側的端框帶30E的四者在吸輥10的內周面相對向而區劃負壓室21。The
再者,本發明可適用於主框帶30M與端框帶30E雙方,但,在以下的實施形態中,作為將本發明適用於主框帶30M者。In addition, the present invention can be applied to both the
如此,在吸引箱20,如圖2所示,在沿著吸輥10的周方向及軸方向之該吸輥10的內周面、和與該吸輥10的內周面相對向的主框帶30M的圓弧狀表面31之間,形成特定的隙間G,具有將該隙間G進行液封之液封裝置40,其具備對此隙間G供給密封用流體(在本實施形態為水)之流體供給路徑41。Thus, in the
在主框帶30M,從流體供給路徑41供給並流動於間隙G之密封用流體,需要確實地流動在該間隙G且在流通於該間隙G的期間可產生充分的壓力損失而達到確實的液封。為了對間隙G確實地流通密封用流體,產生充分的壓力損失,需要進行以下結構,亦即,確保從流體供給路徑41朝間隙G之充分的供水量,並且將間隙G的尺寸在該間隙G的全區域(沿著吸輥10的周方向及軸方向之間隙G的全區域)作成均等,並將流動於該間隙G的密封用流體之流通路徑長度C(後述的主片材30A之圓弧狀表面31沿著吸輥10的周方向所形成的長度)作成較大。前述的供給水及流通路徑長度C,係可依據吸輥10的內徑及旋轉數、負壓室21所需要的負壓、連接於負壓室21的真空泵浦的流量、間隙G的大小、沿著吸輥10的軸方向之間隙G的長度等,例如使用在流體力學能夠算出壓力損失之代表性的達西–威斯巴哈方程式(Darcy-Weisbach equation)算出。再者,作為使用於為了產生充分的壓力損失之計算式,若為在參數含有使用了流體力學之流通路徑尺寸、流速、摩擦損失係數,能夠算出壓力損失之方程式即可。In the
在主框帶30M,對於在吸輥10的旋轉方向N上,入口側(i)與出口側(o)之各主框帶30Mi、30Mo在與吸輥10的內周面之間形成的間隙G,從對應的液封裝置40之流體供給路徑41所供給的密封用流體,係受到生成於吸引箱20的負壓室21之負壓的影響,朝吸引箱20的內部流動(圖2之L與R的流向)。此時,在入口側的主框帶30Mi所形成之間隙G,液封裝置40的流體供給路徑41所供給之密封用流體的流量(圖2的L)是受到吸輥10的旋轉之影響,較出口側的主框帶30Mo所形成之間隙G的流量(圖2的R)更大。這是意味用來在吸引箱20的負壓室21維持負壓之密封維持條件在入口側的主框帶30Mi更嚴格,決定入口側的主框帶30Mi之供水量、間隙G的尺寸等之密封維持條件,藉由在出口側亦採用此密封維持條件,在出口側的主框帶30Mo亦能夠保證密封維持。In the
主框帶30M的構成材料,由於不需要考量因與吸輥10的內周面之滑接所引起的摩擦產生,故,變得不需要選擇碳樹脂等的低摩擦係數材料,可因應需要,採用對在抄紙過程中混入的鹼、酸等具有優良之抗藥品性的氟樹脂、ABS樹脂等的三維造型等的樹脂成形品實施鐵氟龍塗布(Teflon coating)等之廉價的材料。The material of the
為了確保本發明之主框帶30M之密封性,例如,如藉由流體力學之科爾布魯克方程式(Colebrook equation)所示,使在與吸輥10之間形成一定的間隙G的主框帶30M之圓弧狀表面31的表面粗糙度提升即可。例如,在間隙G設為1.0mm、流通路徑長度C設為20mm的情況,將圓弧狀表面31之表面粗糙度增加至Ry30~Ry50的話,則密封性能提升大約15%。再者,作為能夠使用於為了確保主框帶30M的密封性之計算式,另外還有布拉休斯方程式(Blasius theorem)、凡寧方程式(Fanning's equation)、西奧多·馮·卡門方程式(Kármán-Nikuradse)等,在參數含有使用了流體力學之流通路徑的表面粗糙度、流通路徑尺寸、流速,可算出摩擦損失係數的方程式即可。In order to ensure the tightness of the
又,藉由在主框帶30M的圓弧狀表面31製作深度數μm之溝槽,藉由締捲(texturing)之摩擦學效應,可期待主框帶30M之進一步的密封性。溝槽的製作是在圓弧狀表面31,藉由在與吸輥10的旋轉方向交叉的方向上設定深度60μm左右的溝槽進行。In addition, by forming grooves with a depth of several μm on the arc-
本發明之主框帶30M的磨耗的減低,雖因與流動於間隙G的密封用流體(水等)之摩擦存在無法作成零,但比起以往的接觸型,毫無疑問地可減低。因生成於吸引箱20的負壓室21之負壓的影響,會有框帶30M對吸輥10的內周面朝上下變動之虞,因此,為了迴避此情況,需要將主框帶30M對吸引箱20完全地固定。The wear reduction of the
液封裝置40具備流體供給路徑41,其配設於主框帶30M的內部,且開口於沿著吸輥10的內周面之該主框帶30M的圓弧狀表面31,並呈沿著該吸輥10的中心軸形成為連續之狹縫狀。此時,從流體供給路徑41朝向吸輥10的內周面之流體的流出方向K,係對通過該流體供給路徑41的開口部的面前之吸輥10的吸引孔11的孔軸方向H呈交叉角(在入口側的主框帶30Mi,為α1,在出口側的主框帶30Mo,為α2)並互相非平行為佳(圖2)。The
將來自於流體供給路徑41的流體之流出方向K對吸引孔11的孔軸方向H呈前述交叉角α1、α2,是為了防止該流體從吸引孔11朝濕紙1逆流。以各吸引孔11的孔軸方向H為基準之α1、α2的方向,可為沿著吸輥10的旋轉方向N之方向(圖2的α2),亦可為對吸輥10的旋轉方向N之相反方向(圖2的α1)。The outflow direction K of the fluid from the
再者,圖5的α2為朝向對吸輥10的旋轉方向N之相反方向的交叉角的例子。In addition, α2 in FIG. 5 is an example of an angle of intersection in a direction opposite to the rotation direction N of the
在本實施形態,主框帶30M係如圖3所示,被2分成主片材30A與副片材30B,主片材30A與副片材30B接合之接合面,形成有流體供給路徑41之孔狀路徑41r、和與該孔狀路徑41r連通的狹縫狀路徑41s,兩片材30A、30B係藉由螺栓32緊固,設在主片材30A之安裝用凸部33嵌合安裝於設在吸引箱20的安裝用凹部23。在主框帶30M的主片材30A及副片材30B的端面,藉由螺栓35固定有從側面關閉流體供給路徑41之蓋34,設在蓋34並朝吸輥10的外部延伸之密封用流體的供水管42連接於流體供給路徑41的孔狀路徑41r(圖1)。In the present embodiment, the
在吸引箱20,主框帶30M的圓弧狀表面31與吸輥10的內周面之間所形成的間隙G,由於該間隙G在吸輥10的內空部形成,因此,不易測定。作為一個測定方法,將尺寸較吸輥10的吸引孔11小的測定具從該吸引孔11穿通直到抵接於主框帶30M的圓弧狀表面31,藉由此測定具,測定吸輥10的厚度加上間隙G後之長度,從該測定長度減去吸輥10的厚度,藉此算出間隙G。In the
在吸引箱20,主框帶30M的圓弧狀表面31與吸輥10的內周面之間所形成的間隙G,可作為實驗值或理論值加以求出。其中,實際上,在操作中需要進行間隙G的微調整。此微調整係預先設置使安裝於吸引箱20的主框帶30M的圓弧狀表面31對吸輥10之內周面可位移的汽缸等之框位移裝置,使主框帶30M的圓弧狀表面31對吸輥10的內周面位移,調整間隙G,讓吸引箱20之負壓室21的負壓到達目標值。In the
且,在吸引箱20,具有間隙調整裝置50,其可調整形成於吸輥10的內周面與主框帶30M之間的間隙G的大小。In addition, the
間隙調整裝置50係如圖3所示,對吸引箱20的安裝用凹部23的底面與嵌合於此安裝用凹部23的主框帶30M的安裝用凸部33的前端面之間,***裝設壓縮線圈彈簧等的彈推體51,將該主框帶30M朝吸輥10的內周面之側的突出方向彈推。又,將藉由固定於吸引箱20的安裝用凹部23的側壁之汽缸等出沒之止擋銷52對設在主框帶30M之安裝用凸部33的側面33A之傾斜溝面36,從與前述主框帶30M的突出方向正交的方向進行卡合。在卡合於傾斜溝面36的止擋銷52的前端部,包覆著用來使與該傾斜溝面36的滑動變佳之蓋子狀治具J。由於藉由彈推體51朝吸輥10的內周面彈推之主框帶30M會因止擋銷52之前述卡合而停止,故,藉由該止擋銷52之前述出沒量的調整,能夠調整框帶30M的圓弧狀表面31對吸輥10的內周面之接近量(換言之,為間隙G)。藉由預先以實驗等求取對使止擋銷52出沒的汽缸53之氣體壓力、和與此氣體壓力對應而主框帶30M的圓弧狀表面31所形成的間隙G之相關關係,能夠將前述的氣體壓力施加於汽缸53,設定適當的間隙G。As shown in FIG. 3, the
間隙調整裝置50係如圖4所示,亦可在吸輥10的橫斷面上,設定將安裝有主框帶30M的吸引箱20配置於吸輥10的內空部之狀態,預先算出主框帶30M之圓弧狀表面31的例如頂部31P對吸輥10的內周面所形成的各種間隔δ、和與該間隔δ對應之前述間隙G,將與該等的各間隙G對應之各刻度54預先刻設於與吸引箱20的安裝用凹部23的上端面23A對應之主框帶30M的側面33A來構成。The
在將吸引箱20及主框帶30M***至吸輥10的內空部之前段階,選定設在主框帶30M的側面33A之任一個間隙G的刻度54,使該刻度54與吸引箱20之安裝用凹部23的上端面23A相對向,再藉由螺栓55,將該主框帶30M固定於吸引箱20,藉此,能以該選定的刻度54之間隙G,設定在已被***於吸輥10的內空部的狀態下之主框帶30M對吸輥10的內周面所形成的間隙G。Before inserting the
再者,以上的間隙G係越小,則越可維持負壓室21的負壓。但,若間隙G過窄,則會有因吸輥10的旋轉部之振動、圓筒刻度及零件加工誤差等的關係,造成吸輥10與框帶30部分地接觸之虞。吸輥10的旋轉部之振動會因應單元10A的尺寸、旋轉數等改變,因此,需要尋找採用可使吸輥10與框帶30變得完全非接觸且能夠維持吸引箱21的負壓之間隙G。若依據本案發明者的發現,間隙G的理想值為大於0mm且5mm以下,更理想為大於0mm且1mm以下。Furthermore, the smaller the above gap G is, the more the negative pressure of the
又,形成於吸輥10的內周面與主框帶30M的圓弧狀表面31之間的間隙G,不限於對吸輥10的旋轉方向N作成均等,亦可為了增加該間隙G之壓力損失的目的,對吸輥10的旋轉方向N漸減(或漸增)而對流通於該間隙G之密封用流體施加節流抵抗等。In addition, the gap G formed between the inner peripheral surface of the
因此,若依據本實施形態,可達到以下的作用效果。Therefore, according to this embodiment, the following effects can be achieved.
(a)藉由在吸輥10的內周面與主框帶30M之間形成間隙G,藉由對此間隙G供給密封用流體,將該間隙G進行液封,使得既可使設在吸引箱20之主框帶30M對吸輥10的內周面非接觸,亦可維持區劃於該吸引箱的內部之負壓室21的負壓。(a) A gap G is formed between the inner peripheral surface of the
藉此,因主框帶30M滑接於吸輥10的內周面所引起之摩擦消失,可無限減低因主框帶30M的磨耗所引起之更換頻率,亦可減低吸輥10的驅動能。As a result, the friction caused by the sliding of the
不需要對主框帶30M的滑動部供給潤滑用噴灑水,也不需要採用低摩擦係數的碳樹脂等作為主框帶30M的材料,能夠減低成本。There is no need to supply spray water for lubrication to the sliding part of the
(b)藉由作成為可調整前述(a)的間隙G的大小,可因應吸輥10的內徑及旋轉數、負壓室21所需要的負壓、連接於負壓室21的真空泵浦的流量等之操作條件,形成適當的間隙G。(b) By making it possible to adjust the size of the gap G in (a) above, the vacuum pump connected to the
(c)供給至前述(a)的間隙G之密封用流體從配設於吸引箱20的內部且沿著吸輥10的中心軸形成為連續之狹縫狀的流體供給路徑41被供給。因此,可對形成於吸輥10的內周面與主框帶30M之間的間隙G的全區域,確實地供給密封用流體。(c) The sealing fluid supplied to the gap G of (a) is supplied from a
(d)從流體供給路徑41朝向吸輥10的內周面之流體的流出方向K對該吸輥10的吸引孔11作成為非平行。因此,能夠迴避自流體供給路徑41流出的流體貫通吸輥10的吸引孔11而飛散到處於該吸輥的外周面之濕紙1的壞影響產生。(d) The outflow direction K of the fluid from the
再者,在吸引箱20,如圖2所示,於與吸輥10的內周面相對向的位置,設有對吸輥10的吸引孔11噴射清潔用噴灑水之噴灑器24。Furthermore, as shown in FIG. 2, the
以上,參照圖式詳細說明了關於本發明的實施形態,但本發明的具體的結構不限於此實施例,不超出本發明的技術思想範圍之設計變更等亦包含於本發明。例如,即使在設於吸引箱20之端框帶30E,亦可與主框帶30M同樣地,調整該端框帶30E的圓弧狀表面對吸輥10的內周面所形成之間隙G。
[產業上的利用可能性]Above, the embodiments of the present invention have been described in detail with reference to the drawings, but the specific structure of the present invention is not limited to this embodiment, and design changes that do not exceed the scope of the technical idea of the present invention are also included in the present invention. For example, even in the
若依據本發明,既可使設在吸引箱之框帶(deckle strap)對吸輥的內周面非接觸,亦可維持區劃於該吸引箱的內部之負壓室的負壓。According to the present invention, it is possible not only to prevent the deckle strap provided in the suction box from contacting the inner peripheral surface of the suction roller, but also to maintain the negative pressure of the negative pressure chamber partitioned inside the suction box.
1:濕紙
10:吸輥
11:吸引孔
20:吸引箱
21:負壓室
30,30M,30E:框帶
31:圓弧狀表面
40:液封裝置
41:流體供給路徑
50:間隙調整裝置
G:間隙1: wet paper
10: Suction roller
11: Attraction hole
20: Attraction box
21:
[圖1]係顯示配置於吸輥的內空部的吸引箱,其中,(A)為顯示安裝於吸引箱的流體配管之立體圖,(B)為取下吸引箱的端構件而加以顯示之立體圖。 [圖2]係顯示吸輥及吸引箱之斷面圖。 [圖3]係顯示間隙調整裝置的一例之斷面圖。 [圖4]係顯示間隙調整裝置的其他例之斷面圖。 [圖5]係顯示吸輥及吸引箱的變形例之斷面圖。[Figure 1] shows the suction box arranged in the hollow part of the suction roller, in which (A) is a perspective view showing the fluid piping installed in the suction box, and (B) is shown by removing the end member of the suction box Stereograph. [Figure 2] is a cross-sectional view showing the suction roller and the suction box. [Fig. 3] is a cross-sectional view showing an example of the gap adjusting device. [Fig. 4] is a cross-sectional view showing another example of the gap adjusting device. [Figure 5] is a cross-sectional view showing a modification of the suction roller and the suction box.
1:濕紙1: wet paper
2:象輥2: Elephant Roll
10:吸輥10: Suction roller
10A:單元10A: unit
20:吸引箱20: Attraction box
21:負壓室21: negative pressure room
30,30M,30E:框帶30, 30M, 30E: frame belt
30Mi:入口側的主框帶30Mi: Main frame belt on the entrance side
30Mo:出口側的主框帶30Mo: Main frame belt on the exit side
31:圓弧狀表面31: Arc-shaped surface
34:蓋34: cover
35:螺栓35: Bolt
40:液封裝置40: Liquid sealing device
41:流體供給路徑41: fluid supply path
42:供水管42: water supply pipe
G:間隙G: gap
N:旋轉方向N: Rotation direction
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-017244 | 2020-02-04 | ||
JP2020017244A JP7016100B2 (en) | 2020-02-04 | 2020-02-04 | Sealing device for suction rolls |
Publications (2)
Publication Number | Publication Date |
---|---|
TW202130881A true TW202130881A (en) | 2021-08-16 |
TWI746152B TWI746152B (en) | 2021-11-11 |
Family
ID=77086004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109130555A TWI746152B (en) | 2020-02-04 | 2020-09-07 | Sealing device for suction roll |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP7016100B2 (en) |
KR (1) | KR102605788B1 (en) |
CN (1) | CN113217631A (en) |
TW (1) | TWI746152B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114150523A (en) * | 2021-12-23 | 2022-03-08 | 无锡裕力机械有限公司 | Vacuum water-absorbing couch roll with self-wetting isolation plate |
FI20225943A1 (en) * | 2022-10-19 | 2024-04-20 | Valmet Technologies Oy | Suction roll and a seal setup of a suction roll |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59103798U (en) * | 1982-12-25 | 1984-07-12 | 石川島播磨重工業株式会社 | suction roll |
FI71371C (en) * | 1985-04-17 | 1986-12-19 | Valmet Oy | FOERFARANDE FOER AOSTADKOMMA UNDERTRYCK I EN SECTOR AV EN VALSSAMT EN SUGVALS |
JPH01139893A (en) * | 1987-11-26 | 1989-06-01 | Hakuto Kagaku Kk | Clogging preventing agent and method of suction roll for papermaking machine |
KR970009764U (en) * | 1995-08-05 | 1997-03-29 | Rotating Flow Rate Maintenance Device for Rotating Fluid | |
DE19811355A1 (en) * | 1998-03-16 | 1999-09-23 | Voith Sulzer Papiertech Patent | Sealing device |
JP2000073290A (en) | 1998-08-27 | 2000-03-07 | Kubota Corp | Dehydrating roll for paper-making |
DE10214133A1 (en) * | 2002-03-28 | 2003-10-09 | Voith Paper Patent Gmbh | seal means |
JP2005036329A (en) | 2003-07-16 | 2005-02-10 | Starlite Co Ltd | Suction roll seal of paper machine |
KR20090000659U (en) * | 2007-07-18 | 2009-01-22 | (유)용암산업 | A deckle |
DE102011004055A1 (en) * | 2011-02-14 | 2012-08-16 | Voith Patent Gmbh | seal means |
WO2013180304A1 (en) * | 2012-06-01 | 2013-12-05 | 日本ノズル株式会社 | Nonwoven fabric manufacturing device and monwoven fabric manufacturing method |
WO2014026920A1 (en) * | 2012-08-15 | 2014-02-20 | Voith Patent Gmbh | Sealing strip |
CN104583488A (en) * | 2012-08-15 | 2015-04-29 | 福伊特专利有限公司 | Sealing device and roll with a sealing device |
WO2015007414A1 (en) * | 2013-07-19 | 2015-01-22 | Voith Patent Gmbh | Sealing strip for a paper, paperboard or tissue machine, consisting of multiple materials |
AT516191B1 (en) * | 2014-09-15 | 2016-08-15 | Röchling Leripa Papertech Gmbh & Co Kg | Sealing strip systems for suction rolls |
CN208649788U (en) | 2018-08-14 | 2019-03-26 | 山鹰国际控股股份公司 | A kind of modified hydraulic seal suction couch roll |
CN211145344U (en) * | 2019-11-28 | 2020-07-31 | 陕西欧润造纸机械有限公司 | Vacuum roll sealing strip and vacuum roll sealing water-saving device |
-
2020
- 2020-02-04 JP JP2020017244A patent/JP7016100B2/en active Active
- 2020-09-07 TW TW109130555A patent/TWI746152B/en active
- 2020-10-15 KR KR1020200133296A patent/KR102605788B1/en active IP Right Grant
- 2020-11-10 CN CN202011246665.2A patent/CN113217631A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN113217631A (en) | 2021-08-06 |
TWI746152B (en) | 2021-11-11 |
JP2021123820A (en) | 2021-08-30 |
KR102605788B1 (en) | 2023-11-30 |
KR20210099500A (en) | 2021-08-12 |
JP7016100B2 (en) | 2022-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI746152B (en) | Sealing device for suction roll | |
FI71081B (en) | coating method | |
US6073970A (en) | Rotary transmission leadthrough for high pressures and high relative speeds | |
US10113647B2 (en) | Sealing strip for a sealing device in a machine for processing a paper, cardboard, or tissue web | |
KR100348937B1 (en) | Shaft seal | |
US20150191872A1 (en) | Sealing strip | |
JPS638217B2 (en) | ||
US20050039676A1 (en) | Doctor blade dosing system | |
JPH0341780B2 (en) | ||
KR20180018687A (en) | Method and apparatus for liquid coating using deformable metal rolls | |
US20150218753A1 (en) | Sealing device and roller having a sealing device | |
EP3559518B1 (en) | Fluid union apparatus | |
US5443638A (en) | Device for generating a subatmospheric pressure | |
US20160334021A1 (en) | Air seal device for a spray apparatus in a papermaking machine | |
FI107402B (en) | Machine with trackpad | |
CN211852493U (en) | Thrust washer | |
TW201020035A (en) | Roll device for coating, coating device and method for producing coating film | |
CN105603822B (en) | Seal blades | |
CN210978522U (en) | Sealing device for cooling roller and water collecting cavity | |
US20220062925A1 (en) | Self regulating fluid bearing high pressure rotary retarder nozzle | |
JP3680279B2 (en) | Roll bearing sealing device for continuous casting machine, sealing method and continuous casting machine | |
US9925555B2 (en) | Folded sealing blade for a coating applicator | |
US1084922A (en) | Lubricating device. | |
US20200048834A1 (en) | Lubricating Device For Lubricating A Clothing | |
GB2109480A (en) | Reducing friction between relatively rotatable members |