JPS648977B2 - - Google Patents
Info
- Publication number
- JPS648977B2 JPS648977B2 JP58154499A JP15449983A JPS648977B2 JP S648977 B2 JPS648977 B2 JP S648977B2 JP 58154499 A JP58154499 A JP 58154499A JP 15449983 A JP15449983 A JP 15449983A JP S648977 B2 JPS648977 B2 JP S648977B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- air tank
- underwater
- pressure air
- tank
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 241000237502 Ostreidae Species 0.000 description 6
- 235000020636 oyster Nutrition 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 5
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Artificial Fish Reefs (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【発明の詳細な説明】
水中構造物、たとえば魚礁等に用いる定置式の
水中浮力体は永い間水中にあるため、牡蛎等の水
中生物が付着し、重量がまし、沈下しようとす
る。この発明はその沈下を自動的にくい止める水
中構造物の所定水深保持装置に関する。DETAILED DESCRIPTION OF THE INVENTION A stationary underwater buoyant body used for an underwater structure, such as a fish reef, remains underwater for a long time, so aquatic organisms such as oysters attach to it, which increases its weight and tends to sink. This invention relates to a device for maintaining a predetermined water depth for an underwater structure that automatically prevents its sinking.
次にこの発明を図面に従つて詳述する。 Next, the present invention will be explained in detail with reference to the drawings.
第１図は魚礁等に用いる定置式の水中浮力体の
正面図で、１は水中浮力体、６は係留環で、係留
索により海底のアンカー４又は沈錘に係留されて
いるが、その係留索は係留環６に近い部分２は細
くて単位長当り重量が軽いワイヤーあるいはロー
プ等で、海底に近い部分と海底に横たわつている
部分は単位長当り重量の重いチエーン等の係留索
３になつており、水中浮力体の自重を差引いた浮
力が係留索の海底よりの立上り点５より上の部分
の水中重量と同じとなるように作られている。こ
のため水中浮力体は余分の浮力がない経済的なも
のとなつている。また海底に横たわつている部分
があるため、水中浮力体が多少軽くなつたり重く
なつたりしても横たわつている部分が多少ふえた
り減つたりしてバランスがとれる。 Figure 1 is a front view of a stationary underwater buoyancy body used for fish reefs, etc., where 1 is the underwater buoyancy body, 6 is a mooring ring, and the mooring ring is moored to an anchor 4 or sinker on the seabed by a mooring cable. The part 2 of the cable that is close to the mooring ring 6 is a thin wire or rope that is light in weight per unit length, and the part that is close to the seabed and the part that lies on the seabed is made of a mooring cable 3 that is heavy in weight per unit length, such as a chain. The buoyancy force obtained by subtracting the weight of the underwater buoyant body is the same as the underwater weight of the portion of the mooring line above the rising point 5 from the seabed. For this reason, underwater buoyancy bodies have become economical because they have no extra buoyancy. Also, since there is a part lying on the seabed, even if the underwater buoyant body becomes lighter or heavier, the lying part increases or decreases to maintain balance.
しかし魚礁等のように永い間水中にあるもので
は、牡蛎等の水中生物の付着により重量がふえ、
浮力体が沈下するが、これをくい止めるため、水
中浮力体に所定水深保持装置を装着する。第２図
はその所定水深保持装置で、水中浮力体内に設け
られ、７は高圧空気タンク、８は中圧空気タン
ク、９は浮力調節タンクで、高圧空気タンク７と
中圧空気タンク８は減圧弁１０を介してパイプで
連結し、中圧空気タンク８と浮力調節タンク９は
海中に開口した開閉圧流路用パイプ１２をもつ圧
力弁１１を介してパイプで連結し、浮力調節タン
クは下部に海中に開口したパイプを連結してい
る。 However, for things such as fish reefs that remain underwater for a long time, their weight increases due to the attachment of aquatic organisms such as oysters.
The buoyant body sinks, but in order to prevent this, a predetermined water depth maintenance device is attached to the underwater buoyant body. Figure 2 shows the predetermined water depth maintaining device, which is installed inside the underwater buoyant body. 7 is a high-pressure air tank, 8 is a medium-pressure air tank, 9 is a buoyancy adjustment tank, and the high-pressure air tank 7 and medium-pressure air tank 8 are depressurized. The medium-pressure air tank 8 and the buoyancy adjustment tank 9 are connected by a pipe through a pressure valve 11 having an opening/closing pressure passage pipe 12 opened into the sea, and the buoyancy adjustment tank is located at the bottom. It connects pipes that open into the sea.
牡蛎類の付着量をWfと想定し、Wfに見合つた
体積の空気量を高圧空気タンク７に設ける。 Assuming that the amount of oysters attached is W f , the high-pressure air tank 7 is provided with a volume of air corresponding to W f .
中圧空気タンク８の圧力は構造物が沈下する水
深の最大圧より少し高い圧力に減圧弁１０で設定
する。 The pressure in the intermediate pressure air tank 8 is set by a pressure reducing valve 10 to a pressure slightly higher than the maximum pressure at the water depth to which the structure is submerged.
圧力弁１１は、構造物を定置させる所定の水深
の圧力までは閉、越えると開となるよう設定す
る。 The pressure valve 11 is set to close until the pressure reaches a predetermined water depth at which the structure is placed, and to open when the pressure exceeds the predetermined water depth.
例えば、構造物の定置水深hdを20ｍ、牡蛎類の
付着量をWfを500Kgと想定すると係留索３の１ｍ
当りの重量を50Kgとすると、
500Kg÷50Kg＝10
10ｍ水中構造物が沈下することになり、水中構
造物に作用する圧力は２Kg／cm2から３Kg／cm2に変
動する。中圧空気タンク８の空気圧を常時４Kg／
cm2になるように減圧弁１０を設定し、高圧空気タ
ンク７には高圧（７Kg／cm2以上）で充分な空気量
を貯えておく。 For example, assuming that the water depth h d at which the structure is placed is 20 m and the amount of oysters attached W f is 500 kg, the mooring line 3 is 1 m
If the weight per unit is 50Kg, the underwater structure will sink by 500Kg÷50Kg=1010m, and the pressure acting on the underwater structure will vary from 2Kg/cm 2 to 3Kg/cm 2 . The air pressure of medium pressure air tank 8 is always 4Kg/
The pressure reducing valve 10 is set so that the air pressure is 7 kg/cm 2 or more, and the high pressure air tank 7 stores a sufficient amount of air at high pressure (7 kg/cm 2 or more).
次にこの装置の作用を説明する。 Next, the operation of this device will be explained.
水中構造物に牡蛎類が付着して重くなり所定水
深より水中構造物が沈下し、外水圧が２Kg／cm2以
上になると圧力弁１１に開閉圧流路用パイプを介
して外圧が作用して圧力弁が開き、４Kg／cm2圧の
空気が浮力調節タンク９に入り、水バラストが排
水され、浮力調節タンク９がその排水量だけ浮力
が増加する。中圧空気タンク８の減少した空気量
は高圧空気タンク７より補給する。このようにし
て浮力調節タンクの浮力が増加し、構造物の水深
が所定水深まで回復すると外水圧が２Kg／cm2にな
り、圧力弁１１が閉じて空気流及び排水の作動が
止まる。このように構造物に牡蛎等の付着により
重量増加にもかヽわらず、所定水深を保つことが
でき、魚礁等のように手入のできない構造物の水
深維持に大変有効である。 When oysters attach to an underwater structure and it becomes heavy, and the underwater structure sinks below a predetermined water depth, and the external water pressure becomes 2 kg/cm 2 or more, the external pressure acts on the pressure valve 11 via the opening/closing pressure channel pipe, and the pressure increases. The valve opens, air at 4 kg/cm 2 pressure enters the buoyancy adjustment tank 9, water ballast is drained, and the buoyancy of the buoyancy adjustment tank 9 increases by the amount of displacement. The reduced amount of air in the medium pressure air tank 8 is replenished from the high pressure air tank 7. In this way, the buoyancy of the buoyancy adjustment tank increases, and when the water depth of the structure is restored to a predetermined water depth, the outside water pressure becomes 2 kg/cm 2 , the pressure valve 11 closes, and the air flow and drainage operations stop. In this way, it is possible to maintain a specified water depth despite the weight increase due to the attachment of oysters to the structure, and it is very effective in maintaining the water depth of structures such as fish reefs that cannot be maintained.
第１図は本発明が適用される魚礁等に用いる水
中浮力体の係留状態を示す正面図。第２図は所定
水深保持装置の詳細を示す配置図。
１……水中浮力体、２……軽量な係留索、３…
…単位長当り重量の重い係留索、４……アンカ
ー、７……高圧空気タンク、８……中圧空気タン
ク、９……浮力調節タンク、１０……減圧弁、１
１……圧力弁。
FIG. 1 is a front view showing a moored state of an underwater floating body used for a fish reef or the like to which the present invention is applied. FIG. 2 is a layout diagram showing details of the predetermined water depth maintaining device. 1... underwater buoyancy body, 2... lightweight mooring rope, 3...
... Mooring rope with heavy weight per unit length, 4 ... Anchor, 7 ... High pressure air tank, 8 ... Medium pressure air tank, 9 ... Buoyancy adjustment tank, 10 ... Pressure reducing valve, 1
1...Pressure valve.
Claims (1)
ク、浮力調節タンクを設け、高圧空気タンクと中
圧空気タンクは減圧弁を介してパイプで連結し、
中圧空気タンクと浮力調節タンクは、海中に開口
したパイプを連結し所定水深の圧力までは閉、越
えると開となる圧力弁を介してパイプで連結し、
浮力調節タンクは海中に開口したパイプを連結し
たことを特徴とする水中構造物の所定水深保持装
置。1. A high-pressure air tank, a medium-pressure air tank, and a buoyancy adjustment tank are installed in the underwater structure, and the high-pressure air tank and medium-pressure air tank are connected with a pipe via a pressure reducing valve.
The medium-pressure air tank and the buoyancy adjustment tank are connected by a pipe that opens into the sea and is connected via a pressure valve that closes up to a predetermined water pressure and opens when it exceeds the pressure.
A buoyancy adjustment tank is a device for maintaining a predetermined water depth of an underwater structure, which is characterized by connecting pipes that open into the sea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58154499A JPS6047625A (en) | 1983-08-23 | 1983-08-23 | Buoyancy increasing apparatus of underwater structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58154499A JPS6047625A (en) | 1983-08-23 | 1983-08-23 | Buoyancy increasing apparatus of underwater structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6047625A JPS6047625A (en) | 1985-03-15 |
| JPS648977B2 true JPS648977B2 (en) | 1989-02-15 |
Family
ID=15585578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58154499A Granted JPS6047625A (en) | 1983-08-23 | 1983-08-23 | Buoyancy increasing apparatus of underwater structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148366A (en) * | 1987-12-01 | 1989-06-09 | Nagoya Yuka Kk | Masking material |
| JPH02125786U (en) * | 1989-03-27 | 1990-10-17 | ||
| WO1991019320A1 (en) * | 1990-05-31 | 1991-12-12 | Kabushiki Kaisha Toshiba | Lead frame and semiconductor package using it |
-
1983
- 1983-08-23 JP JP58154499A patent/JPS6047625A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148366A (en) * | 1987-12-01 | 1989-06-09 | Nagoya Yuka Kk | Masking material |
| JPH02125786U (en) * | 1989-03-27 | 1990-10-17 | ||
| WO1991019320A1 (en) * | 1990-05-31 | 1991-12-12 | Kabushiki Kaisha Toshiba | Lead frame and semiconductor package using it |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6047625A (en) | 1985-03-15 |
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