TWM594086U - Bidirectional vent valve with inner floating roof - Google Patents
Bidirectional vent valve with inner floating roof Download PDFInfo
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- TWM594086U TWM594086U TW109200310U TW109200310U TWM594086U TW M594086 U TWM594086 U TW M594086U TW 109200310 U TW109200310 U TW 109200310U TW 109200310 U TW109200310 U TW 109200310U TW M594086 U TWM594086 U TW M594086U
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Abstract
一種內浮頂之雙向通氣閥,包含一固定於內浮頂上的外框基座、一個該外框基座上的密封蓋、一被固定於該密封蓋下的通氣孔盒、一被該通氣孔盒圍繞的浮箱,及複數呈條狀且固定於該外框基座、該通氣孔盒及該浮箱間的內部空間的滑動件。經由液體對浮箱的浮力之壓力及引力差做開關動作,當液面上升時,該浮箱會上推該密封蓋,使該環形氣槽開啟而能洩壓通氣,當液面下降時,吸引該浮箱向下開啟該密封蓋,使該密封蓋中央開口開啟而能洩壓通氣。該等滑動件以非金屬材質製造,增加滑動面的順暢度,並可避免金屬間摩擦產生的溫度及火花等問題。A bidirectional vent valve for an inner floating roof includes an outer frame base fixed on the inner floating roof, a sealing cover on the outer frame base, a vent hole box fixed under the sealing cover, and a A floating box surrounded by an air hole box, and a plurality of sliders in a strip shape and fixed to the inner space between the outer frame base, the air hole box and the floating box. Through the liquid, the buoyancy pressure and gravitational difference of the floating tank are switched. When the liquid level rises, the floating tank will push up the sealing cover, so that the annular gas groove is opened to release pressure and ventilation. When the liquid level drops, Attract the floating box to open the sealing cover downwards, so that the central opening of the sealing cover is opened to allow pressure relief and ventilation. These sliding parts are made of non-metallic materials to increase the smoothness of the sliding surface and avoid problems such as temperature and sparks caused by friction between metals.
Description
本新型是有關於一種氣閥,特別是指一種內浮頂之雙向通氣閥。The present invention relates to an air valve, especially a bidirectional ventilation valve with an internal floating roof.
內浮頂是用於儲放揮發性有機物的儲液槽中,該內浮頂罩覆儲液的液面,且隨著液面的起落上升及下降,如此可達到大幅減少儲液揮發之作用。雖然儲液槽需要良好的密閉性來避免儲液揮發而造成減損,但儲液槽在進行注液及汲液的過程中,仍需使該儲液槽內產生空氣流動,以便於儲液進出,並同時具有調節壓力之功能。The inner floating roof is a liquid storage tank for storing volatile organic compounds. The inner floating roof covers the liquid surface of the liquid storage, and rises and falls with the rise and fall of the liquid surface, so that the effect of greatly reducing the volatilization of the storage liquid can be achieved . Although the liquid storage tank needs to be well sealed to avoid damage caused by volatilization of the liquid storage, the liquid storage tank still needs to generate air flow in the liquid storage tank during the filling and drawing process, so that the liquid storage can enter and exit , And also has the function of regulating pressure.
參閱圖1及圖2,因此一般的內浮頂上會設有通氣閥1。該通氣閥1設置在該內浮頂的兩個彼此相間隔的浮板2上,並包含一設置於該等浮板2上且圍繞出一上下延伸之通孔111的外框基座11、一可相對於該外框基座11上下移動地穿設該通孔111的支柱12,及一固定於該支柱12頂端而位於該外框基座11上方的蓋板13。該外框基座11具有一固定於該等浮板2上的外圍繞壁112、一位於該外圍繞壁112內且圍繞界定出該通孔111的內圍繞壁113,及一連接該外圍繞壁112及該內圍繞壁113且界定出複數氣孔114的頂壁115。該外圍繞壁112及該內圍繞壁113相配合界定出一向下連通液面且向上連通該等氣孔114的內部空間116。Referring to FIGS. 1 and 2, a
該外框基座11會與該等浮板2隨著液面的上升下降而浮動,平時該支柱12因自身重量而帶動該蓋板13向下緊壓該頂壁115,以如圖1所示地封閉該等氣孔114,如此可避免儲液因揮發而逸散,使內浮頂維持密封之功能。當需要維修而將儲液抽出,導致液面大幅下降至接近儲液槽內底面3時,該支柱12的底端會以撞擊方式觸抵該內底面3,使該支柱12及該蓋板13無法再下降,當該外框基座11隨該等浮板2繼續下降時,該外框基座11會如圖2所示地相對於該支柱12及該蓋板13向下移動,使該蓋板13不再緊抵該頂壁115而使該等氣孔114開啟,因此空氣得以由該等氣孔114通過該內部空間116,並進入該內浮頂下方,以避免該內浮頂在維修高度時。該內浮頂下方的揮發氣體積存過多。The
然而,該通氣閥1僅能在該支柱12觸及該儲液槽內底面3時開啟,無法在維修高度以外的情況進行氣體及壓力之調節。而該支柱12在上下移動的過程中,整個外周面都會與該外框基座11之內圍繞壁113相互摩擦,摩擦面積過大,造成金屬製成的該支柱12及該內圍繞壁113容易磨損,並因真空吸附而導致該蓋板13難以開啟之問題。另外,該支柱12以撞擊該儲液槽內底面3的方式啟動,但一般該儲液槽的內底面3往往凹凸不平,故該支柱12容易在觸底後因接觸面非平整面而歪斜,這造成該支柱12無法以直上直下的方式上下作動,不僅使行程不順暢,甚至會因過度磨損及推擠而造成該通氣閥1的元件損毀或無法運作。However, the
因此,本新型之目的,即在提供一種調節能力強,且滑動順暢之通氣閥。Therefore, the purpose of the present invention is to provide a vent valve with strong adjustment capability and smooth sliding.
於是,本新型內浮頂之雙向通氣閥,該通氣閥包含一固定於該內浮頂上的外框基座、一被該外框基座圍繞且形成複數氣孔的通氣孔盒、一固定於該通氣孔盒頂面且位於該外框基座上方並形成一開口的密封蓋、一位於該密封蓋的下方的浮箱,及複數呈條狀的滑動件。該通氣孔盒界定出一與該等氣孔相連通的內部空間,並與該外框基座相配合界定出一環形氣槽。當該密封蓋壓抵該外框基座時,該密封蓋封閉該環形氣槽,且該等氣孔連通該環形氣槽,當該密封蓋向上遠離該外框基座時,開啟該環形氣槽。該浮箱位於該內部空間中。當該浮箱頂抵該密封蓋時,該浮箱封閉該開口,使該開口不與該內部空間相連通,當該浮箱向下遠離該密封蓋時,該內部空間連通該開口。該等滑動件設置於該環形氣槽及該內部空間內且呈條狀,位於該環形氣槽內的滑動件與該外框基座及該通氣孔盒的其中之一滑動接觸,位於該內部空間內的滑動件與該通氣孔盒及該浮箱的其中之一滑動接觸。Therefore, the bidirectional vent valve of the inner floating roof of the present invention includes an outer frame base fixed on the inner floating roof, a vent hole box surrounded by the outer frame base and forming a plurality of air holes, and a fixed on the The top surface of the vent box is located above the base of the outer frame and forms an open sealing cover, a floating box located below the sealing cover, and a plurality of sliders in the shape of bars. The vent hole box defines an internal space communicating with the vent holes, and cooperates with the base of the outer frame to define an annular air slot. When the sealing cover is pressed against the outer frame base, the sealing cover closes the annular air groove and the air holes communicate with the annular air groove. When the sealing cover moves upward away from the outer frame base, the annular air groove is opened . The float box is located in the internal space. When the floating box abuts the sealing cover, the floating box closes the opening so that the opening does not communicate with the internal space, and when the floating box moves away from the sealing cover downward, the internal space communicates with the opening. The sliding members are arranged in the annular air groove and the internal space in a strip shape, and the sliding member located in the annular air groove is in sliding contact with one of the outer frame base and the vent hole box, located in the interior The sliding member in the space is in sliding contact with one of the vent box and the floating box.
本新型之功效在於:當儲液注入時,增加的壓力及上升的液面會帶動該浮箱向上推頂該密封蓋,使該密封蓋遠離該外框基座,以使該環形氣槽開啟,讓壓力可由該環形氣槽宣洩,並帶動空氣流動以利於注液。當汲出儲液時,下降的液面及壓力減少所產生的吸力會帶動該浮箱向下移動,使該浮箱向下開啟該密封蓋,讓該開口連通該內部空間而不再被封閉,此時空氣可由該開口進入該內部空間,產生空氣流動以使汲液順暢。此外,該外框基座、該通氣孔盒,及該浮箱之間是透過該等滑動件產生非滾動的滑動接觸,從而減少彼此間的相互摩擦,由於該等滑動件呈管狀(或條狀),因此是以弧形的外周面產生滑動接觸,可減少摩擦的面積,提升滑動順暢度並避免該外框基座、該通氣孔盒或該浮箱卡死。The effect of the present invention is that when the storage liquid is injected, the increased pressure and the rising liquid level will drive the buoyant tank to push the sealing cap upwards, so that the sealing cap is away from the base of the outer frame, so that the annular air groove is opened , So that the pressure can be released by the annular air groove, and the air flow is driven to facilitate liquid injection. When the storage liquid is pumped out, the suction force generated by the lowered liquid level and the reduced pressure will drive the buoyancy box downward, so that the buoyancy box opens the sealing cover downwards, allowing the opening to communicate with the internal space without being closed. At this time, air can enter the internal space through the opening, and air flow is generated to make the pumping fluid smooth. In addition, between the outer frame base, the vent box, and the buoyancy box, non-rolling sliding contact is generated through the sliding members, thereby reducing mutual friction between each other, because the sliding members are tubular (or strips) Shape), so the sliding contact is generated on the arc-shaped outer peripheral surface, which can reduce the friction area, improve the sliding smoothness and prevent the outer frame base, the vent box or the floating box from being stuck.
參閱圖3、圖4,及圖5,本新型內浮頂4之通氣閥5的一實施例,適用於設置在一內浮頂4上。該通氣閥5包含一固定於該內浮頂4上的外框基座51、一被該外框基座51圍繞且形成複數氣孔521的通氣孔盒52、一固定於該通氣孔盒52頂面且位於該外框基座51上方的密封蓋53、一位於該密封蓋53下方的浮箱54、複數設置於該外框基座51、該通氣孔盒52及該浮箱54間的滑動件55,及複數設置於該外框基座51、該通氣孔盒52及該浮箱54間的導引件56。該通氣孔盒52圍繞界定出一與該等氣孔521相連通的內部空間522。且該通氣孔盒52與該外框基座51相配合界定出一沿水平方向位於兩者之間的環形氣槽57。該密封蓋53在中央形成一開口531。Referring to FIGS. 3, 4 and 5, an embodiment of the
該等滑動件55呈條管狀且軸心線沿水平方向延伸,並設置於該環形氣槽57及該內部空間522中。位於該環形氣槽57中的滑動件55固定於該外框基座51,且透過弧形的外周面與該通氣孔盒52滑動接觸。位於該內部空間522中的滑動件55固定於該浮箱54,且透過弧形的外周面與該通氣孔盒52滑動接觸。在本實施例中,該等滑動件55是以非金屬材質製造,具耐酸抗鹼性而能對應揮發性有機物液體,且摩擦係數低具有良好的滑動作用。The sliding
該等導引件56呈條管狀且軸心線沿高度方向延伸,並設置於該環形氣槽57及該內部空間522中。位於該環形氣槽57中的導引件56固定於該通氣孔盒52外側,且透過弧形的外周面與該外框基座51滑動接觸。位於該內部空間522中的導引件56固定於該通氣孔盒52內側,且透過弧形的外周面與該浮箱54滑動接觸。在本實施例中,該等導引件56同樣是以非金屬材質製造,具耐酸抗鹼性而能對應揮發性有機物液體,且摩擦係數低具有良好的滑動作用。The
本實施例在儲液穩定時,是如圖4及圖5所示地,該密封蓋53向下壓抵該外框基座51,從而將該環形氣槽57封閉,而該浮箱54受到浮力影響而向上頂抵該密封蓋53,以封閉該開口531,此時的通氣閥5呈密閉狀態,以避免氣化的儲液揮發逸散,需要特別說明的是,雖然該浮箱54受到浮力影響而有上升至與該內浮頂4同高度的趨勢,但由於受到該密封蓋53的重量抵消部分浮力,因此最後呈現出圖4的平衡狀態。In this embodiment, when the liquid storage is stable, as shown in FIGS. 4 and 5, the
參閱圖6及圖7,當由外部注入儲液時,上升的液面及增加的壓力帶動該浮箱54繼續向上移動,如此將會使該密封蓋53被該浮箱54帶動而向上遠離該外框基座51,進而使該環形氣槽57不再被封閉,如此可使壓力由該環形氣槽57宣洩,減少該內浮頂4的晃動而保持穩定,並帶動空氣流動以使注液順暢。Referring to FIGS. 6 and 7, when the storage liquid is injected from the outside, the rising liquid level and the increased pressure drive the
參閱圖8及圖9,當將儲液汲取至外部時,下降的液面及因壓力減少而產生的吸力會帶動該浮箱54向下移動,從而不再封閉該開口531,使空氣可由該開口531經該內部空間522進入,並在通過該等氣孔521及該環形氣槽57後進入該內浮頂4下方,透過前述的空氣流動可使汲液動作順暢。透過前述的作動方式,使本實施例可透過儲液浮力驅使而開啟,從而達到調節氣壓之功能,可避免習知透過撞擊方式驅動之缺點。需要特別說明的是,當該內浮頂4停在最低使用狀態或維修高度時,因該等浮板41之間沒有任何液體壓力,因此該浮箱54在沒有浮力支撐的情況下會自然向下,呈現如圖9之狀態。Referring to FIG. 8 and FIG. 9, when the storage liquid is drawn to the outside, the falling liquid level and the suction force caused by the reduction in pressure will drive the
復參閱圖4及圖5,該等滑動件55及該等導引件56透過弧形的外周面與該外框基座51、該通氣孔盒52,及該浮箱54滑動接觸,不僅可大幅減少摩擦面積及增加滑動順暢度,且因以非金屬材質製造,而可避免金屬間相互摩擦而產生高溫及火花等危險情形。此外,由於該等滑動件55及該等導引件56是採不會滾動或轉動的固定方式,因此安裝及維護時不須顧慮轉動或滾動的順暢度,在安裝及拆換上都相當容易,有效提升方便性。該等滑動件55及該等導引件56的配置,也使本實施例能採該外框基座51、該通氣孔盒52,及該浮箱54的三層式設計,結構簡單且元件數少。Referring back to FIGS. 4 and 5, the sliding
需要特別說明的是,雖然本實施例中是以每一滑動件55兩側設有兩個導引件56的方式排列,但實際上可以需求改變該等滑動件55及該等導引件56的排列方式,該等滑動件55及該等導引件56的固定處也可更換(例如將設置於外框基座51上的滑動件55固定於該通氣孔盒52上),更進一步地,本實施例也可僅設置滑動件55或導引件56,並依平衡條件改變數量及分布位置,且不以此為限。此外,也可根據儲液種類及所需的透氣性來選用不同重量的該浮箱54,以調整該浮箱54的浮力而改變其行程(例如改變該開口531的開度),並藉此產生適合的洩壓通氣功能。It should be particularly noted that although in this embodiment, two
綜上所述,本新型在一般狀態時呈密閉狀態,以避免儲液揮發逸散,並在汲液和注液時呈開啟狀態,以達到空氣流通及卸壓之功效,此種雙向通氣的方式較舊款通氣閥的單向通氣效果佳,該等滑動件55及該等導引件56可降低摩擦面積並提升滑動順暢度,避免金屬整面摩擦接觸而造成危險及磨耗,且安裝拆卸容易,故確實能達成本新型之目的。In summary, the new model is in a closed state in the general state to avoid the volatilization of the storage liquid, and it is in the open state when drawing and injecting liquid to achieve the effect of air circulation and pressure relief. The way is better than the old one-way ventilation valve. The sliding
惟以上所述者,僅為本新型之實施例而已,當不能以此限定本新型實施之範圍,凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本新型專利涵蓋之範圍內。However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.
4:內浮頂 5:通氣閥 51:外框基座 52:通氣孔盒 521:氣孔 522:內部空間 53:密封蓋 531:開口 54:浮箱 55:滑動件 56:導引件 57:環形氣槽 4: Inner floating roof 5: vent valve 51: outer frame base 52: vent box 521: Stomata 522: interior space 53: Sealing cover 531: opening 54: floating box 55: Slider 56: Guide 57: annular air groove
本新型之其它的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是一示意圖,說明一習知的通氣閥; 圖2是一示意圖,說明圖1中的通氣閥的開啟狀態; 圖3是一立體圖,說明本新型所適用的內浮頂; 圖4是一側視剖面圖,說明本新型內浮頂之雙向通氣閥的一實施例; 圖5是一立體圖,說明圖4的立體態樣; 圖6是一側視剖面圖,說明本實施例在注液時的開啟狀態; 圖7是一立體圖,說明圖6的立體態樣; 圖8是一側視剖面圖,說明本實施例在汲液時的開啟狀態;及 圖9是一立體圖,說明圖8的立體態樣。 Other features and functions of the present invention will be clearly presented in the embodiments referring to the drawings, in which: Figure 1 is a schematic diagram illustrating a conventional vent valve; 2 is a schematic diagram illustrating the open state of the vent valve in FIG. 1; Figure 3 is a perspective view illustrating the inner floating roof to which the new model is applicable; 4 is a side cross-sectional view illustrating an embodiment of the two-way vent valve of the new internal floating roof; 5 is a perspective view illustrating the three-dimensional appearance of FIG. 4; 6 is a side cross-sectional view illustrating the open state of this embodiment when injecting liquid; 7 is a perspective view illustrating the three-dimensional appearance of FIG. 6; 8 is a side cross-sectional view illustrating the open state of the present embodiment when pumping liquid; and FIG. 9 is a perspective view illustrating the three-dimensional aspect of FIG. 8.
4:內浮頂 4: Inner floating roof
5:通氣閥 5: vent valve
51:外框基座 51: outer frame base
52:通氣孔盒 52: vent box
521:氣孔 521: Stomata
522:內部空間 522: interior space
53:密封蓋 53: Sealing cover
531:開口 531: opening
54:浮箱 54: floating box
55:滑動件 55: Slider
56:導引件 56: Guide
57:環形氣槽 57: annular air groove
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW109200310U TWM594086U (en) | 2020-01-08 | 2020-01-08 | Bidirectional vent valve with inner floating roof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW109200310U TWM594086U (en) | 2020-01-08 | 2020-01-08 | Bidirectional vent valve with inner floating roof |
Publications (1)
Publication Number | Publication Date |
---|---|
TWM594086U true TWM594086U (en) | 2020-04-21 |
Family
ID=71133743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109200310U TWM594086U (en) | 2020-01-08 | 2020-01-08 | Bidirectional vent valve with inner floating roof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWM594086U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI709517B (en) * | 2020-01-08 | 2020-11-11 | 璟鎧企業有限公司 | Two-way vent valve for inner floating roof |
-
2020
- 2020-01-08 TW TW109200310U patent/TWM594086U/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI709517B (en) * | 2020-01-08 | 2020-11-11 | 璟鎧企業有限公司 | Two-way vent valve for inner floating roof |
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