JP2015016898A - Waterproof structure of outdoor tank equipment - Google Patents

Waterproof structure of outdoor tank equipment Download PDF

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JP2015016898A
JP2015016898A JP2013146216A JP2013146216A JP2015016898A JP 2015016898 A JP2015016898 A JP 2015016898A JP 2013146216 A JP2013146216 A JP 2013146216A JP 2013146216 A JP2013146216 A JP 2013146216A JP 2015016898 A JP2015016898 A JP 2015016898A
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annular plate
polyurethane rubber
plate flange
dog running
waterproof
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JP5756831B2 (en
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林 秀行
Hideyuki Hayashi
秀行 林
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Meisei Industrial Co Ltd
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Meisei Industrial Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To easily impart waterproofness even to existing equipment while maintaining long-term waterproofness in the case of new equipment.SOLUTION: A liquid storage tank 3, which is integrated by welding a lower end of a vertical cylinder part 2 to an annular plate 1 for forming a bottom plate, is installed on a support foundation part 4. An annular plate flange part 1A elongated to the outside with respect to an outer peripheral part of a lower end of the vertical cylinder part 2, and a berm part 4A of the support foundation part 4 elongated to the outside with respect to the annular plate flange part 1A are provided. A part ranging between the annular plate flange part 1A and the berm part 4A is continuously coated with a waterproof polyurethane rubber-sprayed layer 8.

Description

本発明は、底板を形成するアニュラ板に縦筒部の下端を溶接して一体化してある貯液用タンクを、支持基礎部上に設置し、前記縦筒部の下端外周部よりも外側に延出した前記アニュラ板フランジ部と、前記アニュラ板フランジ部よりも外側に延出した支持基礎部における犬走り部とを設けてある屋外タンク設備の防水構造に関する。   In the present invention, a liquid storage tank, which is integrated by welding the lower end of the vertical cylinder part to the annular plate forming the bottom plate, is installed on the support base part, and is located outside the outer peripheral part of the lower end of the vertical cylinder part. The present invention relates to a waterproof structure for an outdoor tank facility in which the extended annular plate flange portion and a dog running portion in a support base portion extended outward from the annular plate flange portion are provided.

従来、上記屋外タンク設備の防水構造は、前記アニュラ板フランジ部と前記犬走り部とに亘って、樹脂シートを貼り合わせて防水したり、シリコーンを刷毛で塗布したりして防水構造になるように施工していた(周知慣用技術で適切な公報が見当たらない)。   Conventionally, the waterproof structure of the outdoor tank equipment is waterproofed by bonding a resin sheet or applying silicone with a brush over the annular plate flange portion and the dog running portion. (There is no appropriate publication in the well-known conventional technique).

上述した従来の施工法では、国で義務付けられているタンクの開放点検期間10年間という規定期間内で防水性を維持することは困難で、10年後には既設の設備を撤去して新たに施工するのが一般的であった。
たとえ、10年後に既設の設備を撤去せずに補修により防水性を付与しようとしても、アニュラ板フランジ部には、縦筒部との間に亘って、補強のためのリブが溶接により一体に突設してあったり、下方の支持基礎部に固定するアンカーボルトの貫通取付部があったりする箇所を、樹脂シートやシリコーンによる刷毛塗りで防水施工するのは困難で、長期に亘って防水性を確保することはできなかった。
In the conventional construction method described above, it is difficult to maintain waterproofness within the specified period of 10 years for the tank opening inspection period, which is mandatory in the country. After 10 years, the existing equipment will be removed and newly constructed. It was common to do.
Even if it is going to give waterproofness by repairing without removing the existing equipment after 10 years, the ribs for reinforcement are integrated by welding to the annular plate flange part between the vertical cylinder part. It is difficult to waterproof the place where there is a protruding installation or the anchor bolt penetration mounting part fixed to the lower support base by brushing with resin sheet or silicone, and it will be waterproof for a long time Could not be secured.

従って、本発明の目的は、上記問題点を解消し、新設においては長期に亘る防水性を維持できながら、既設の設備に対しても、防水性を簡単に付与できるようにするところにある。   Accordingly, an object of the present invention is to solve the above-mentioned problems and to easily provide waterproofing to existing facilities while maintaining long-term waterproofing in a new installation.

本発明の第1の特徴構成は、底板を形成するアニュラ板に縦筒部の下端を溶接して一体化してある貯液用タンクを、支持基礎部上に設置し、前記縦筒部の下端外周部よりも外側に延出した前記アニュラ板フランジ部と、前記アニュラ板フランジ部よりも外側に延出した支持基礎部における犬走り部とを設けてある屋外タンク設備の防水構造であって、前記アニュラ板フランジ部と前記犬走り部とに亘る部分を、防水性のあるポリウレタンゴムの吹付け層により連続的に覆ったところにある。   According to a first characteristic configuration of the present invention, a liquid storage tank, which is integrated by welding a lower end of a vertical tube portion to an annular plate forming a bottom plate, is installed on a support base portion, and the lower end of the vertical tube portion The waterproof structure of the outdoor tank facility provided with the annular plate flange portion extending outward from the outer peripheral portion and the dog running portion in the support base portion extending outward from the annular plate flange portion, A portion extending between the annular plate flange portion and the dog running portion is continuously covered with a waterproof polyurethane rubber spray layer.

本発明の第1の特徴構成によれば、防水性のあるポリウレタンゴムによる吹付け層は、金属やコンクリートなどのアニュラ板や支持基礎部に対して接着性の良いポリウレタンゴムを吹付けるだけの簡単な施工により、アニュラ板フランジ部と犬走り部とに亘る幅で、且つ、貯液用タンクの全周に亘って、途切れずに連続的な厚い防水被覆層を簡単に形成することができる。
つまり、従来のように、樹脂シートの貼り付け施工の場合には、樹脂シート同士の継ぎ目部の防水施工が困難であったり、前記縦筒部と前記アニュラ板フランジ部との間に亘って、溶接により一体化してあるリブなどの補強用突出部をシートで覆って完全に防水施工するのは困難で、また、シリコーンによる刷毛塗りにより防水層を形成する場合には、均等な厚みの防水層を形成するのが困難で手間がかかりすぎたり、前記リブなどの突出部に防水層を形成するのは困難であったりするのに対して、本発明の防水層は、ポリウレタンゴムの吹付けにより、どんな凹凸部でも簡単に均等な厚みの防水層を形成でき、防水性を上げて長期に亘る屋外タンク設備の使用を確保できる。
従って、新設であっても既設であっても、屋外タンク設備に簡単に防水性を付与できる。
According to the first characteristic configuration of the present invention, the spray layer made of waterproof polyurethane rubber is simple enough to spray polyurethane rubber having good adhesion to an annular plate such as metal or concrete or a support base portion. With a simple construction, a continuous thick waterproof coating layer can be easily formed without interruption over the entire circumference of the liquid storage tank with a width extending between the annular plate flange portion and the dog running portion.
In other words, as in the past, in the case of pasting the resin sheet, it is difficult to waterproof the seam between the resin sheets, or between the vertical tube portion and the annular plate flange portion, Covering ribs and other reinforcing projections that are integrated by welding with a sheet is difficult to completely waterproof, and when forming a waterproof layer by brushing with silicone, a waterproof layer of uniform thickness However, it is difficult to form a waterproof layer on protrusions such as the ribs, and the waterproof layer of the present invention is formed by spraying polyurethane rubber. It is possible to easily form a waterproof layer with a uniform thickness on any uneven part, and to ensure the use of outdoor tank equipment over a long period of time by improving the waterproofness.
Therefore, it is possible to easily impart waterproofness to the outdoor tank equipment, whether newly installed or existing.

本発明の第2の特徴構成は、前記ポリウレタンゴムの吹付け層は、2液硬化型のポリウレタンゴムエラストマーから成り、引っ張り強さ10N/mm2以上、引裂き強さ50N/mm以上、伸び率200%以上、ゲル化時間20秒以内の物性を有するものである。 According to a second characteristic configuration of the present invention, the polyurethane rubber spray layer is made of a two-component curing type polyurethane rubber elastomer, has a tensile strength of 10 N / mm 2 or more, a tear strength of 50 N / mm or more, and an elongation of 200. % Or more and a gelation time within 20 seconds.

本発明の第2の特徴構成によれば、本発明の第1の特徴構成による上述の作用効果を叶えることができるのに加えて、2液硬化型のポリウレタンゴムエラストマーから成り、引っ張り強さ10N/mm2以上、引裂き強さ50N/mm以上、伸び率200%以上、ゲル化時間20秒以内の物性を有するポリウレタンゴムの吹付け層は、施工時に吹付け後、短時間で硬化するために、液ダレしにくく突出した縦壁部であっても均一で厚い防水層を形成できる。そのために、天候に左右されやすい屋外の施工においても、全体に均等な防水性を確保できる。
その上、高い引っ張り強さ、引裂き強さや高い伸び率により、温度変化に伴う伸縮や振動などにより、アニュラ板フランジ部と犬走り部との間の相対的な変位があっても、十分追随できる。
According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects of the first characteristic configuration of the present invention, it is made of a two-component curable polyurethane rubber elastomer and has a tensile strength of 10 N. / mm 2 or more, Tear strength 50N / mm or more, Elongation rate 200% or more, Polyurethane rubber spray layer with physical properties within 20 seconds of gelation time to cure in a short time after spraying during construction Even if the vertical wall portion protrudes difficult to dripping, a uniform and thick waterproof layer can be formed. Therefore, even in outdoor construction that is easily influenced by the weather, it is possible to ensure a uniform waterproof property as a whole.
In addition, the high tensile strength, tear strength, and high elongation ratio allow sufficient follow-up even when there is a relative displacement between the annular plate flange and the dog running section due to expansion and contraction or vibration accompanying temperature changes. .

本発明の第3の特徴構成は、前記支持基礎部がコンクリートであって、前記ポリウレタンゴムの吹付け層の外表面を、アクリルウレタンからなる紫外線防止保護層で覆ったところにある。   According to a third characteristic configuration of the present invention, the support base is concrete, and the outer surface of the polyurethane rubber spray layer is covered with an ultraviolet protective layer made of acrylic urethane.

本発明の第3の特徴構成によれば、コンクリート製の支持基礎部からアニュラ板フランジ部にかけて連続的に覆ったポリウレタンゴムは、アクリルウレタンからなる紫外線防止保護層により、紫外線劣化が防止され、長期にわたる防水性が維持できる。   According to the third characteristic configuration of the present invention, the polyurethane rubber continuously covered from the concrete supporting base portion to the annular plate flange portion is prevented from being deteriorated by the ultraviolet ray by the ultraviolet ray-preventing protective layer made of acrylic urethane. The waterproofness can be maintained.

本発明の第4の特徴構成は、前記アニュラ板フランジ部と前記犬走り部との間に亘って伸縮性の合成繊維不織布を覆い、前記アニュラ板フランジ部と前記合成繊維不織布と前記犬走り部とに亘って覆うように、前記ポリウレタンゴムの吹付け層を形成したところにある。   The fourth characteristic configuration of the present invention covers a stretchable synthetic fiber nonwoven fabric between the annular plate flange portion and the dog running portion, and the annular plate flange portion, the synthetic fiber nonwoven fabric and the dog running portion. The polyurethane rubber spray layer is formed so as to cover the entire surface.

本発明の第4の特徴構成によれば、前記アニュラ板フランジ部と前記犬走り部との間に亘って覆う伸縮性の合成繊維不織布は、その上を更に覆うポリウレタンゴムの防水層の伸縮性を発揮させることができ、アニュラ板フランジ部と犬走り部との相対変位を大きく許容できる。   According to the fourth characteristic configuration of the present invention, the stretchable synthetic fiber nonwoven fabric covering between the annular plate flange portion and the dog running portion has a stretchability of a waterproof layer of polyurethane rubber further covering the stretchable synthetic fiber nonwoven fabric. The relative displacement between the annular plate flange portion and the dog running portion can be greatly allowed.

本発明の第5の特徴構成は、前記ポリウレタンゴムの吹付け層と前記アニュラ板フランジ部との間には、2液エポキシ変成ウレタンプライマーを塗布してあり、前記ポリウレタンゴムの吹付け層と前記犬走り部との間には、水系エポキシポリマーセメントプライマーを塗布したところにある。   According to a fifth characteristic configuration of the present invention, a two-component epoxy-modified urethane primer is applied between the polyurethane rubber spray layer and the annular plate flange portion, and the polyurethane rubber spray layer and the polyurethane rubber spray layer are coated with the polyurethane rubber spray layer. A water-based epoxy polymer cement primer is applied between the dog running part.

本発明の第5の特徴構成によれば、2液エポキシ変成ウレタンプライマーは、ポリウレタンゴムの吹付け層とアニュラ板フランジ部との双方の接着性が高く、水系エポキシポリマーセメントプライマーは、ポリウレタンゴムの吹付け層と犬走り部との双方の接着性が高い。そのために、ポリウレタンゴムの防水層が、その防水性を大きく発揮できる。   According to the fifth characteristic configuration of the present invention, the two-component epoxy-modified urethane primer has high adhesion between the polyurethane rubber spray layer and the annular plate flange, and the water-based epoxy polymer cement primer is made of polyurethane rubber. The adhesiveness between the spray layer and the dog running part is high. Therefore, the waterproof layer of polyurethane rubber can exert its waterproof property greatly.

屋外タンク設備の斜視図である。It is a perspective view of an outdoor tank facility. 要部縦断面図である。It is a principal part longitudinal cross-sectional view. 別実施形態の屋外タンク設備の斜視図である。It is a perspective view of the outdoor tank equipment of another embodiment. 別実施形態の要部縦断面図である。It is a principal part longitudinal cross-sectional view of another embodiment.

以下に本発明の実施の形態を図面に基づいて説明する。
図1〜図2に示すように、底板を形成する鉄材製のアニュラ板1に同様の鉄材製の縦筒部2の下端を溶接して一体化してある貯液用タンク3を、コンクリート製の支持基礎部4上に設置し、縦筒部2の下端外周部よりも外側に延出したアニュラ板フランジ部1Aと、アニュラ板フランジ部1Aよりも外側に延出した支持基礎部4における犬走り部4Aとを設けてある屋外タンク設備を構成してある。
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 2, a liquid storage tank 3, which is formed by welding and integrating the lower end of a similar vertical tube portion 2 made of iron to a steel annular plate 1 forming a bottom plate, is made of concrete. Dog running on an annular plate flange portion 1A installed on the support base portion 4 and extending outward from the outer peripheral portion of the lower end of the vertical tube portion 2, and a support base portion 4 extending outward from the annular plate flange portion 1A An outdoor tank facility provided with the section 4A is configured.

そして、アニュラ板フランジ部1Aと支持基礎部4との間や、アニュラ板フランジ部1Aをアンカーボルト5で支持基礎部4に固定するためのアンカーボルト5の貫通取付け部6等の隙間から雨水が浸入してアニュラ板1下面が腐食したり、アンカーボルト5が腐食して、貯液用タンク3の支持固定機能の低下を防止するために、アニュラ板フランジ部1Aと犬走り部4Aとに亘って、防水構造を採る必要があり、これらの部分を、防水性のあるポリウレタンゴムの吹付け層8により連続的に覆って屋外タンク設備の防水構造を構成してある。   Then, rainwater flows between the annular plate flange portion 1 </ b> A and the support base portion 4, or through gaps such as the through-mounting portion 6 of the anchor bolt 5 for fixing the annular plate flange portion 1 </ b> A to the support base portion 4 with the anchor bolt 5. In order to prevent the lower surface of the annular plate 1 from corroding and the anchor bolt 5 from corroding and the support fixing function of the liquid storage tank 3 from being lowered, the annular plate flange portion 1A and the dog running portion 4A are covered. Thus, it is necessary to adopt a waterproof structure, and these parts are continuously covered with a waterproof polyurethane rubber spraying layer 8 to constitute a waterproof structure of an outdoor tank facility.

ポリウレタンゴムの吹付け層8は、2液硬化型のポリウレタンゴムエラストマーから成り、引っ張り強さ10N/mm2以上、引裂き強さ50N/mm以上、伸び率200%以上、ゲル化時間20秒以内の物性を有するもので、イソシアネートを主材とすると共に、ポリオールを硬化剤とし特殊アミンを触媒として混入した材料から成り、無発泡で防水性があり、自己消火性を有する。 The polyurethane rubber spray layer 8 is made of a two-component curing type polyurethane rubber elastomer, and has a tensile strength of 10 N / mm 2 or more, a tear strength of 50 N / mm or more, an elongation of 200% or more, and a gelation time of 20 seconds or less. It has physical properties and is made of a material in which an isocyanate is a main material, a polyol is used as a curing agent, and a special amine is used as a catalyst. The material is non-foamed, waterproof, and self-extinguishing.

本実施形態のポリウレタンゴムエラストマーの1例は、具体的には、ショアーA硬さが89、引っ張り強さ12N/mm2、引裂き強さ58N/mm、伸び率380%、15秒からゲル化し始める物性がある。 Specifically, one example of the polyurethane rubber elastomer according to the present embodiment is gelled from a Shore A hardness of 89, a tensile strength of 12 N / mm 2 , a tear strength of 58 N / mm, an elongation of 380%, and 15 seconds. There are physical properties.

ポリウレタンエラストマーを吹き付け塗装して、アニュラ板フランジ部1Aと犬走り部4Aとに亘る凹凸面に、塗布量2.0Kg/m2の均等な厚みの吹付け層8を形成するためには、ゲル化時間20秒以内の物性が必要である。つまり、1mm厚/m2の塗布量は1Kgで、約1〜2mm厚の吹付け層8を形成するために、吹き付け後20秒以上かかってゲル化すれば液ダレして均等な厚みの吹付け層8が形成されず、そのために、凹凸部に均一な吹付け層8を形成するためには、20秒以内にゲル化する必要がある。 In order to form a spray layer 8 having a coating thickness of 2.0 kg / m 2 on the uneven surface extending from the annular plate flange portion 1A and the dog running portion 4A by spraying polyurethane elastomer, Physical properties within 20 seconds are required. In other words, the coating amount of 1 mm thickness / m 2 is 1 kg, and in order to form the spraying layer 8 having a thickness of about 1 to 2 mm, if gelling takes 20 seconds or more after spraying, the liquid will sag and the spraying will have a uniform thickness. Since the adhesive layer 8 is not formed, it is necessary to gel within 20 seconds in order to form the uniform spray layer 8 on the concavo-convex portion.

ポリウレタンエラストマーは、アニュラ板フランジ部1Aと犬走り部4Aとに直接吹き付けてもよいが、特に大型の貯液タンクにおいては、アニュラ板フランジ部1Aと犬走り部4Aとの間に亘って伸縮性の合成繊維不織布9を覆って接着剤15を介して接着し、アニュラ板フランジ部1Aと合成繊維不織布9と犬走り部4Aとに亘って覆うように、ポリウレタンゴムの吹付け層8を形成する。
尚、ポリウレタンゴムの吹付け層8とアニュラ板フランジ部1Aとの間には、2液エポキシ変成ウレタンプライマー10を塗布してあり、ポリウレタンゴムの吹付け層8と犬走り部4Aとの間には、水系エポキシポリマーセメントプライマー11を塗布してポリウレタンエラストマーの接着強度を上げてある。
このように施工することにより、ポリウレタンゴムにおけるアニュラ板フランジ部1Aに接着する部分と、コンクリート製の犬走り部4Aに接着する部分との間の非接着部分の距離を大きく取って、伸縮度を大きく発揮できるようにしてあるために、アニュラ板フランジ部1Aと犬走り部4Aとの相対変位を大きく許容できる。
The polyurethane elastomer may be sprayed directly on the annular plate flange portion 1A and the dog running portion 4A, but particularly in a large-sized liquid storage tank, the elastic property extends between the annular plate flange portion 1A and the dog running portion 4A. The synthetic fiber nonwoven fabric 9 is covered and bonded via an adhesive 15 to form a polyurethane rubber spraying layer 8 so as to cover the annular plate flange portion 1A, the synthetic fiber nonwoven fabric 9 and the dog running portion 4A. .
A two-component epoxy modified urethane primer 10 is applied between the polyurethane rubber spray layer 8 and the annular plate flange portion 1A, and between the polyurethane rubber spray layer 8 and the dog running portion 4A. Is applied with a water-based epoxy polymer cement primer 11 to increase the adhesive strength of the polyurethane elastomer.
By constructing in this way, the distance between the non-adhesive portion between the portion of the polyurethane rubber that adheres to the annular plate flange portion 1A and the portion that adheres to the dog running portion 4A made of concrete is increased, and the degree of elasticity is increased. Since it can be greatly exerted, the relative displacement between the annular plate flange portion 1A and the dog running portion 4A can be greatly allowed.

コンクリート製の支持基礎部4と鉄材性のアニュラ板1との間に設けられた防水シートを介在してあってもよく、また、アニュラ板フランジ部1Aの端縁部と支持基礎部4との間に形成される隅部に形成される凹部には、ウレタン系シーリング材12を充填して、ポリウレタンゴムの吹き付け層の下面が滑らかな面になるようにして、成形時の外観が滑らかになるように形成して美観を整えやすくしてある。
また、ポリウレタンゴムによる吹き付けは、図1に示すように、アニュラ板フランジ部1Aをアンカーボルト5で支持基礎部4に固定するための貫通取付け部6や、その両側の補強リブ13の部分にも、それらを全て覆うように吹き付けて防水性の高い吹付け層8を簡単に形成して、防水性能が完璧にできるようにしてある。
A waterproof sheet provided between the concrete support base 4 and the iron-made annular plate 1 may be interposed between the end edge of the annular plate flange 1A and the support base 4. The recesses formed in the corners formed between them are filled with urethane-based sealing material 12 so that the lower surface of the polyurethane rubber spray layer becomes a smooth surface, and the appearance during molding becomes smooth. It is easy to arrange aesthetics.
Further, as shown in FIG. 1, the polyurethane rubber is sprayed on the through-hole mounting portion 6 for fixing the annular plate flange portion 1A to the support base portion 4 with the anchor bolt 5 and the reinforcing ribs 13 on both sides thereof. These are sprayed so as to cover them all to easily form a highly waterproof spray layer 8 so that the waterproof performance can be perfected.

前記ポリウレタンゴムの吹付け層8の外表面を、アクリルウレタンからなる紫外線防止保護層14で覆い、ポリウレタンゴムの紫外線による劣化を防止して、長期にわたる防水性能を維持できるようにしてある。
前記紫外線防止保護層14は、白顔料として酸化チタンを使用して紫外線高反射性を付与してある。
The outer surface of the polyurethane rubber spraying layer 8 is covered with an ultraviolet protection layer 14 made of acrylic urethane to prevent the polyurethane rubber from being deteriorated by ultraviolet rays so that the waterproof performance over a long period can be maintained.
The ultraviolet prevention protective layer 14 is provided with high ultraviolet reflectivity by using titanium oxide as a white pigment.

[別実施形態]
前記合成繊維不織布9は、必ずしもポリウレタンゴムの吹付け層8の下側に設けなくてもよく、図3、図4に示すように、アニュラ板フランジ部1Aと犬走り部4Aとに直接ポリウレタンゴムの吹付け層8を吹付けてもよい。
尚、ポリウレタンゴムの吹付け層8とアニュラ板フランジ部1Aとの間には、2液エポキシ変成ウレタンプライマー10を塗布し、ポリウレタンゴムの吹付け層8と犬走り部4Aとの間には、水系エポキシポリマーセメントプライマー11を塗布してポリウレタンエラストマーの接着強度を上げた方が良い。
尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。
[Another embodiment]
The synthetic fiber nonwoven fabric 9 does not necessarily have to be provided under the polyurethane rubber spraying layer 8, and as shown in FIGS. 3 and 4, the polyurethane rubber is directly applied to the annular plate flange portion 1A and the dog running portion 4A. The spray layer 8 may be sprayed.
A two-component epoxy modified urethane primer 10 is applied between the polyurethane rubber spray layer 8 and the annular plate flange portion 1A, and between the polyurethane rubber spray layer 8 and the dog running portion 4A, It is better to apply the water-based epoxy polymer cement primer 11 to increase the adhesive strength of the polyurethane elastomer.
In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

1 アニュラ板
1A アニュラ板フランジ部
2 縦筒部
3 貯液タンク
4 支持基礎部
4A 犬走り部
8 吹付け層
9 合成繊維不織布
10 2液エポキシ変成ウレタンプライマー
11 水系エポキシポリマーセメントプライマー
14 紫外線防止保護層
DESCRIPTION OF SYMBOLS 1 Annular board 1A Annular board flange part 2 Vertical cylinder part 3 Liquid storage tank 4 Supporting base part 4A Dog running part 8 Spraying layer 9 Synthetic fiber nonwoven fabric 10 Two-part epoxy modified urethane primer 11 Water-based epoxy polymer cement primer 14 UV protection layer

Claims (5)

底板を形成するアニュラ板に縦筒部の下端を溶接して一体化してある貯液用タンクを、支持基礎部上に設置し、
前記縦筒部の下端外周部よりも外側に延出したアニュラ板フランジ部と、前記アニュラ板フランジ部よりも外側に延出した支持基礎部における犬走り部とを設けてある屋外タンク設備の防水構造であって、
前記アニュラ板フランジ部と前記犬走り部とに亘る部分を、防水性のあるポリウレタンゴムの吹付け層により連続的に覆ってある屋外タンク設備の防水構造。
A liquid storage tank that is integrated by welding the lower end of the vertical cylinder to the annular plate that forms the bottom plate is installed on the support base,
Waterproofing of outdoor tank equipment provided with an annular plate flange portion extending outward from the outer peripheral portion of the lower end of the vertical tube portion, and a dog running portion in a support base portion extending outward from the annular plate flange portion. Structure,
A waterproof structure for an outdoor tank facility in which a portion extending between the annular plate flange portion and the dog running portion is continuously covered with a spray layer of waterproof polyurethane rubber.
前記ポリウレタンゴムの吹付け層は、2液硬化型のポリウレタンゴムエラストマーから成り、引っ張り強さ10N/mm2以上、引裂き強さ50N/mm以上、伸び率200%以上、ゲル化時間20秒以内の物性を有するものである請求項1に記載の屋外タンク設備の防水構造。 The polyurethane rubber spray layer is made of a two-component curing type polyurethane rubber elastomer, and has a tensile strength of 10 N / mm 2 or more, a tear strength of 50 N / mm or more, an elongation of 200% or more, and a gelation time of 20 seconds or less. The waterproof structure for outdoor tank equipment according to claim 1, which has physical properties. 前記支持基礎部がコンクリートであって、前記ポリウレタンゴムの吹付け層の外表面を、アクリルウレタンからなる紫外線防止保護層で覆ってある請求項1又は2に記載の屋外タンク設備の防水構造。   The waterproof structure of the outdoor tank equipment according to claim 1 or 2, wherein the support base is concrete, and an outer surface of the polyurethane rubber spray layer is covered with an ultraviolet protection layer made of acrylic urethane. 前記アニュラ板フランジ部と前記犬走り部との間に亘って伸縮性の合成繊維不織布を覆い、
前記アニュラ板フランジ部と前記合成繊維不織布と前記犬走り部とに亘って覆うように、前記ポリウレタンゴムの吹付け層を形成してある請求項1〜3のいずれかに記載の屋外タンク設備の防水構造。
Covering the stretchable synthetic fiber nonwoven fabric between the annular plate flange part and the dog running part,
The outdoor tank facility according to any one of claims 1 to 3, wherein a spray layer of the polyurethane rubber is formed so as to cover the annular plate flange portion, the synthetic fiber nonwoven fabric, and the dog running portion. Waterproof structure.
前記ポリウレタンゴムの吹付け層と前記アニュラ板フランジ部との間には、2液エポキシ変成ウレタンプライマーを塗布してあり、
前記ポリウレタンゴムの吹付け層と前記犬走り部との間には、水系エポキシポリマーセメントプライマーを塗布してある請求項1〜4のいずれか1項に記載の屋外タンク設備の防水構造。
A two-component epoxy modified urethane primer is applied between the polyurethane rubber spray layer and the annular plate flange,
The waterproof structure of the outdoor tank equipment according to any one of claims 1 to 4, wherein a water-based epoxy polymer cement primer is applied between the spraying layer of the polyurethane rubber and the dog running portion.
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Publication number Priority date Publication date Assignee Title
CN109502206A (en) * 2018-12-05 2019-03-22 江苏中矿大正表面工程技术有限公司 A kind of oil storage tank margin plate sealant safeguard structure and technique
JP2019151338A (en) * 2018-02-28 2019-09-12 東電設計株式会社 Holding structure for tank
JP2020095132A (en) * 2018-12-12 2020-06-18 日東電工株式会社 Processing tank for polarizing film manufacturing, and manufacturing method of polarizing film
KR102638293B1 (en) * 2023-02-15 2024-02-20 (주)리보너스 Construction method of prevention inflow of water and anti corrosion for annular plate of storage tank

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JPS57114486A (en) * 1980-12-26 1982-07-16 Daito Kogyo Co Ltd Corrosion protective structure of lower end section of outer surface in outdoor storage tank
JP2003341791A (en) * 1999-06-24 2003-12-03 Sanfurointo:Kk Repair method for interior of tank
JP2005076345A (en) * 2003-09-02 2005-03-24 Sanai Kk Repairing structure and repairing method of concrete tank

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JPS5786480A (en) * 1980-11-19 1982-05-29 Showa Sekiyu Asufuaruto Kk Corrosion-proof method for outdoor storage tank
JPS57114486A (en) * 1980-12-26 1982-07-16 Daito Kogyo Co Ltd Corrosion protective structure of lower end section of outer surface in outdoor storage tank
JP2003341791A (en) * 1999-06-24 2003-12-03 Sanfurointo:Kk Repair method for interior of tank
JP2005076345A (en) * 2003-09-02 2005-03-24 Sanai Kk Repairing structure and repairing method of concrete tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019151338A (en) * 2018-02-28 2019-09-12 東電設計株式会社 Holding structure for tank
CN109502206A (en) * 2018-12-05 2019-03-22 江苏中矿大正表面工程技术有限公司 A kind of oil storage tank margin plate sealant safeguard structure and technique
JP2020095132A (en) * 2018-12-12 2020-06-18 日東電工株式会社 Processing tank for polarizing film manufacturing, and manufacturing method of polarizing film
KR102638293B1 (en) * 2023-02-15 2024-02-20 (주)리보너스 Construction method of prevention inflow of water and anti corrosion for annular plate of storage tank

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