JPS62260692A - Heat-insulating material fitting structure of pc egg type digestor chamber - Google Patents
Heat-insulating material fitting structure of pc egg type digestor chamberInfo
- Publication number
- JPS62260692A JPS62260692A JP61103564A JP10356486A JPS62260692A JP S62260692 A JPS62260692 A JP S62260692A JP 61103564 A JP61103564 A JP 61103564A JP 10356486 A JP10356486 A JP 10356486A JP S62260692 A JPS62260692 A JP S62260692A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- insulating material
- egg
- ground
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011810 insulating material Substances 0.000 title claims description 11
- 230000029087 digestion Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000011513 prestressed concrete Substances 0.000 description 12
- 239000010802 sludge Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、汚泥処理施設の一つである嫌気性消化法に
用いるＰＣ卵型消化槽の外周面を被覆するための断熱材
設置構造に関する。Detailed Description of the Invention [Field of Industrial Application] This invention relates to a structure for installing a heat insulating material to cover the outer peripheral surface of a PC egg-shaped digestion tank used in an anaerobic digestion method, which is one of sludge treatment facilities. .
「従来の技術」
周知のように、ＰＣ卵型消化槽の、嫌気性消化法を用い
た汚泥処理施設であり、下水処理に伴い発生する汚泥を
消化槽内部に集約して所定のｌ温度（中温３５℃〜高温
５５℃程度）で消化するとともに、汚泥中に含まれたエ
ネルギーを有効に回収して消化槽の加温等に利用するも
のである。``Prior art'' As is well known, this is a sludge treatment facility using an anaerobic digestion method using a PC egg-shaped digester, in which sludge generated during sewage treatment is collected inside the digester and heated to a predetermined temperature ( The sludge is digested at a medium temperature of about 35°C to a high temperature of about 55°C, and the energy contained in the sludge is effectively recovered and used for heating the digestion tank.
第２図はそのＰＣ卵型消化槽の断面を示す図で、地盤Ｇ
中に設置された群杭基礎１とリング基礎２とからなる基
礎部３と、それに支持された消化槽本体４とからなり、
消化槽本体４は卵型に形成された壁部５と、逆円錐形の
底版部６とを主な構成要素とし、壁部５の底部５ａおよ
び底版部６は地盤Ｇ中においてリング基礎２と一体に形
成された構成となっている。Figure 2 is a diagram showing the cross section of the PC egg-shaped digester, and the ground G
It consists of a foundation part 3 consisting of a group pile foundation 1 and a ring foundation 2 installed inside, and a digester main body 4 supported by the foundation part 3,
The main components of the digester body 4 are an egg-shaped wall 5 and an inverted conical bottom slab 6. The bottom 5a and the bottom slab 6 of the wall 5 are connected to the ring foundation 2 in the ground G. It has an integrated structure.
また、消化槽本体４の躯体には水密性、気密性。In addition, the frame of the digester body 4 is watertight and airtight.
耐久性を高め壁厚の減少を図るとともに、耐震性を高め
るためにＰＣ（プレストレストコンクリート）構造が採
用されており、そして、消化槽本体４内部の温度と外気
温度との差によって躯体に生じる温度荷重は躯体に導入
するプレストレス量を決定するための大きな要因となっ
ている。そのため、消化槽内部を保温して熱損失を防止
するととしに、躯体の内外面の温度差を少なくして躯体
に大きな温度荷重か発生４−ろのを防市４る八めに躯体
表面は断熱月７によって覆イ）れている。A PC (prestressed concrete) structure has been adopted to increase durability and reduce wall thickness, as well as to increase earthquake resistance. Load is a major factor in determining the amount of prestress to be introduced into the building frame. Therefore, in order to prevent heat loss by keeping the inside of the digester warm, the temperature difference between the inside and outside of the structure should be reduced to prevent a large temperature load from occurring on the structure. It is covered by a heat insulating layer 7.
従来、この種のＰ Ｃ弁型消化槽の断熱（４設置構造と
しては、第２図に示４−ように卵型に形成された壁部５
に沿ってその他ト部分の外周面の２．を覆・）たちのが
知られている。Conventionally, the heat insulation (4 installation structure) of this type of PC valve type digester is a wall portion 5 formed in an oval shape as shown in Fig. 2.
2. of the outer circumferential surface of the other part along . It is known that the
「発明が解決しようとする問題点Ｊ
ところが、前記従来のＰＣ卵型消化槽の断熱材設置構造
においては、地−に部分の壁部しか被覆していなかった
ため、冬期や寒冷地（特に、凍土の発生ずる地域）にお
いては、地上部と地中部との境界付近で壁部の内外面間
に急激な温度変化が生じて躯体に大きなｌＫ＆度荷重荷
電生ケろことに起因して、その付近の躯体に導入するプ
レストレス量を増加させる必要が生し、そのためにＩ）
Ｃ鋼材を増やしたりコンクリート躯体を厚くしたりし
なければならず、コストアップ原因となるという問題点
があった。``Problem to be solved by the invention J''However, in the conventional PC egg-shaped digester installation structure with insulation material, only the wall portion of the ground was covered, so it (areas where this occurs), a sudden temperature change occurs between the inner and outer surfaces of the wall near the boundary between the above-ground part and the underground part, causing a large lK & degree load charge on the building frame, causing It became necessary to increase the amount of prestress introduced into the frame of I).
There was a problem in that it was necessary to increase the amount of C steel material and make the concrete frame thicker, which caused an increase in costs.
本発明は、前記問題点に鑑みてなされたしので、地表付
近の壁部に大きな温度荷重を発生させることなく、壁部
のＰＣ鋼材を減らすとともにコンクリ−１・躯体の肉厚
を薄くしてコストダウンを実現することのできるＰＣ卵
型消化槽の断熱材設置構造を提供することを目的とする
。The present invention has been made in view of the above-mentioned problems, and thus reduces the amount of PC steel used in the wall and thins the wall thickness of the concrete 1/frame without causing a large temperature load on the wall near the ground surface. The purpose is to provide a heat insulating material installation structure for a PC egg-shaped digester that can realize cost reduction.
「問題点を解決するための手段」
本発明は、前記問題点を解決するために、壁部の外周面
を覆う断熱材の下端部が地盤中に埋設された壁部まで延
在していることを特徴としている。"Means for Solving the Problems" In order to solve the above problems, the present invention provides that the lower end of the heat insulating material covering the outer peripheral surface of the wall extends to the wall buried in the ground. It is characterized by
「実施例」
第１図は、本発明の一実施例を示すもので、本発明の断
熱材設置構造を用いたＰＣ卵型消化槽の地表付近の側断
面図であり、前記第２図に示す構成要素と同一の要素に
ついては、同一符号を付してその説明を省略する。゛
図において、地表付近の地盤Ｇ中には卵型に形成された
壁部５の底部５ａおよび逆円錐状に形成された底版部６
がリング基礎２と一体に形成された構成となっている。"Example" Figure 1 shows an example of the present invention, and is a side sectional view of the vicinity of the ground surface of a PC egg-shaped digester using the insulation material installation structure of the present invention. Elements that are the same as those shown are denoted by the same reference numerals and their explanations will be omitted. In the figure, in the ground G near the ground surface, there are a bottom part 5a of the wall part 5 formed in an egg shape and a bottom plate part 6 formed in an inverted conical shape.
is formed integrally with the ring foundation 2.
そして、壁部５の外周面は、消化槽本体４を保温するた
めの断熱材７によって覆われており、断熱材７の下端部
７ａが地盤Ｇ中に埋設された壁部５の底部５ａに沿って
所定の深さく本実施例においては１ｍ程度の埋め込み深
さ）まで延在している。The outer peripheral surface of the wall 5 is covered with a heat insulating material 7 for keeping the digester main body 4 warm, and the lower end 7a of the heat insulating material 7 is connected to the bottom 5a of the wall 5 buried in the ground G. It extends to a predetermined depth (in this embodiment, the embedding depth is about 1 m).
この断熱材７の埋込み深さは、Ｉ） Ｃ弁型消化槽が設
置される場所や消化槽の内部温度等によって最適な長さ
を任意に決定することができろ。また、埋設部分の断熱
＋Ａ７の材質は強度、断熱効果、耐用年数、コスト等の
諸条件を１ＩＷｊ足さ且るととムに、土中においての耐
腐食性を考慮したものが必要であり、現在、発泡ポリウ
レタンやアスベストセメント板等が考えられる。。The depth of embedding the heat insulating material 7 can be arbitrarily determined depending on the location where the C-valve type digestion tank is installed, the internal temperature of the digestion tank, etc. In addition, the material for the insulation + A7 of the buried part must be one that takes into account corrosion resistance in the soil, as well as considering various conditions such as strength, insulation effect, service life, and cost. Currently, foamed polyurethane and asbestos cement boards are considered. .
したがって、本発明の１析熱（」設置構造を使用牢るこ
とによって、冬期や寒冷地（特に、凍１．Ｑ）発生する
地域）において乙、地１一部と地中部との境界付近で壁
部の内外面間に急激な温度変化が生じることがなく、躯
体に大きな温度荷重か発生することかない。その結果、
地表付近の躯体に導入４゛るプレストレス量を増加させ
る必要がなく、そのためにＰＣ鋼材を増やしたりコンク
リ−１・の壁厚を厚くしたりする必要がなく、コストの
低減を図ることかできる。Therefore, by using the installation structure of the present invention, in winter or in cold regions (particularly areas where freezing occurs), near the boundary between part of the ground and the underground part. There is no sudden temperature change between the inner and outer surfaces of the wall, and no large temperature load is generated on the building frame. the result,
There is no need to increase the amount of prestress introduced into the structure near the ground surface, and therefore there is no need to increase the number of PC steel materials or thicken the concrete wall thickness, which can reduce costs. .
「発明の効果Ｊ
以」二説明したように本発明は、壁部の外周面を覆う断
熱材の下端部が地盤中に埋設された壁部まで延在してい
るものであるので、地上部と地中部との境界付近で壁部
の内外面間に急激な温度変化が生しることがなく、躯体
に大きな温度荷重が発生することがない。その結果、そ
の付近の躯体に導入するプレストレス量を増加させる必
要がなく、そのためにＰＣ鋼材を増やしたりコンクリー
トの壁厚を厚くしたりする必要がなく、コストの低減を
図ることができるとかできる。As explained in "Effects of the Invention J and Below" 2, in the present invention, the lower end of the heat insulating material covering the outer peripheral surface of the wall extends to the wall buried in the ground. There is no sudden temperature change between the inner and outer surfaces of the wall near the boundary between the wall and the underground part, and no large temperature load is generated on the structure. As a result, there is no need to increase the amount of prestress introduced into the building structure in the vicinity, and there is no need to increase the amount of prestressed steel or thicken the concrete walls, making it possible to reduce costs. .
【図面の簡単な説明】
第１図は本発明の一実施例を示すもので、ＰＣ卵型消化
槽の地表付近の側断面図、第２図は従来の技術を説明す
るための側断面図である。
Ｇ・・・・・・地盤、５・・・・・壁部、５ａ・・・・
・・壁部の底部、７・・・・断熱材、７ａ・・・・断熱
材の下端部。[Brief Description of the Drawings] Fig. 1 shows an embodiment of the present invention, and is a side sectional view of the PC egg-shaped digester near the ground surface, and Fig. 2 is a side sectional view for explaining the conventional technology. It is. G...Ground, 5...Wall, 5a...
...bottom of the wall, 7...insulating material, 7a...lower end of the heat insulating material.
Claims (1)
埋設されたＰＣ卵型消化槽の保温を行うために、壁部の
外周面を覆う断熱材の設置構造であって、前記断熱材の
下端部が地盤中に埋設された壁部まで延在していること
を特徴とするＰＣ卵型消化槽の断熱材設置構造。A structure in which a heat insulating material is installed to cover the outer circumferential surface of the wall in order to insulate a PC egg-shaped digestion tank whose wall is formed into an egg shape and whose bottom is buried in the ground. A heat insulation material installation structure for a PC egg-shaped digester, characterized in that the lower end of the material extends to a wall buried in the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61103564A JPS62260692A (en) | 1986-05-06 | 1986-05-06 | Heat-insulating material fitting structure of pc egg type digestor chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61103564A JPS62260692A (en) | 1986-05-06 | 1986-05-06 | Heat-insulating material fitting structure of pc egg type digestor chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62260692A true JPS62260692A (en) | 1987-11-12 |
Family
ID=14357301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61103564A Pending JPS62260692A (en) | 1986-05-06 | 1986-05-06 | Heat-insulating material fitting structure of pc egg type digestor chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62260692A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114109A (en) * | 1973-03-08 | 1974-10-31 | ||
| JPS5387000A (en) * | 1976-12-13 | 1978-07-31 | Hallenius Tore Jerker | Warehouse for storing radioactive substance etc* in bock |
| JPS60219370A (en) * | 1984-04-13 | 1985-11-02 | 株式会社大林組 | Construction of large container having profile cross area |
-
1986
- 1986-05-06 JP JP61103564A patent/JPS62260692A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114109A (en) * | 1973-03-08 | 1974-10-31 | ||
| JPS5387000A (en) * | 1976-12-13 | 1978-07-31 | Hallenius Tore Jerker | Warehouse for storing radioactive substance etc* in bock |
| JPS60219370A (en) * | 1984-04-13 | 1985-11-02 | 株式会社大林組 | Construction of large container having profile cross area |
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