JPS6231455Y2 - - Google Patents
Info
- Publication number
- JPS6231455Y2 JPS6231455Y2 JP19200983U JP19200983U JPS6231455Y2 JP S6231455 Y2 JPS6231455 Y2 JP S6231455Y2 JP 19200983 U JP19200983 U JP 19200983U JP 19200983 U JP19200983 U JP 19200983U JP S6231455 Y2 JPS6231455 Y2 JP S6231455Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- tank
- fresh water
- supply path
- water supply
- 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 44
- 239000013505 freshwater Substances 0.000 claims description 32
- 238000002788 crimping Methods 0.000 claims description 4
- 230000002528 anti-freeze Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Barrages (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案はゲートの水密ゴム圧着装置に関するも
のである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a watertight rubber crimping device for gates.
従来例の構成とその問題点
第１図に示すものはダムの縦断面図であつて、
その概略を説明すると、１はダム本体２に形成さ
れた放水路、３は高圧ラジアルゲート、４は該ゲ
ート３を開閉させる油圧シリンダ、５は水密ゴム
である。Configuration of conventional example and its problems What is shown in Figure 1 is a longitudinal cross-sectional view of a dam.
Briefly, 1 is a water discharge channel formed in the dam body 2, 3 is a high-pressure radial gate, 4 is a hydraulic cylinder that opens and closes the gate 3, and 5 is watertight rubber.
上記構成において、従来、水密ゴム５の圧着構
造として第２図に示すものがある。すなわち６は
ダム水、７はタンク、８はポンプ、９は切替バル
ブ、１０は圧力スイツチ、１１はドレン、１２は
ベローズ式の加圧シリンダ、１３，１４は該シリ
ンダ１２の移動部１２Ａに対向して設けられたリ
ミツトスイツチ、１５はストレーナである。 In the above configuration, there is a conventional pressure-bonding structure for the watertight rubber 5 as shown in FIG. That is, 6 is dam water, 7 is a tank, 8 is a pump, 9 is a switching valve, 10 is a pressure switch, 11 is a drain, 12 is a bellows type pressurizing cylinder, and 13 and 14 are opposed to the moving part 12A of the cylinder 12. A limit switch 15 is provided as a strainer.
上記構成において、水密ゴム５に対する加圧
は、ポンプ８を作動させることによりタンク７内
の清水を通路１６を介しておこない、圧力が上限
設定値より上がると、圧力スイツチ１０によりポ
ンプ８の作動を停止させる。また水密ゴム５内の
減圧は切替バルブ９を位置に切換えることによ
りおこなう。停電時にはダム水が加圧シリンダ１
２に作用して水密ゴム５内の圧力が下がるのを防
止している。 In the above configuration, the watertight rubber 5 is pressurized by operating the pump 8 to draw clean water from the tank 7 through the passage 16. When the pressure rises above the upper limit setting, the pressure switch 10 operates the pump 8. make it stop. Further, the pressure inside the watertight rubber 5 is reduced by switching the switching valve 9 to a certain position. During a power outage, dam water flows into pressurized cylinder 1
2 to prevent the pressure inside the watertight rubber 5 from decreasing.
上記従来構成であると、切替バルブ９からのリ
ークがあるため、水密ゴム５内の圧力を長時間保
持できない。したがつてポンプ８の起動頻度が高
くなり、ランニングコストが高くなる。また停電
時には水密ゴム５内の圧力がダム水位によつて変
動する。加圧シリンダ１２の硬質ゴム製伸縮部が
伸縮によつて疲労させられやすく、安全性に問題
がある。 With the conventional configuration described above, the pressure inside the watertight rubber 5 cannot be maintained for a long time because of leakage from the switching valve 9. Therefore, the frequency of activation of the pump 8 becomes high, and the running cost becomes high. Further, during a power outage, the pressure inside the watertight rubber 5 fluctuates depending on the dam water level. The hard rubber extensible portion of the pressurizing cylinder 12 is easily fatigued by expansion and contraction, which poses a safety problem.
考案の目的
本考案は上記従来の欠点を解消するゲートの水
密ゴム圧着装置を提供することを目的とする。OBJECT OF THE INVENTION The object of the present invention is to provide a watertight rubber crimping device for a gate that overcomes the above-mentioned conventional drawbacks.
考案の構成
上記目的を達成するため、本考案のゲートの水
密ゴム圧着装置は、ゲートの水密ゴム内に圧力水
供給路を介して連通する圧力タンクを設け、該圧
力タンクをダム水に連通させるダム水供給路を設
け、圧力タンクより上方にエクスパンシヨンタン
クを設け、ダム水を溜める清水補給タンクを設
け、該補給タンク内の清水をエクスパンシヨンタ
ンク内に供給するエクスパンシヨンタンク用ポン
プを設け、エクスパンシヨンタンクと水密ゴム内
とを連通させる清水供給路を設け、圧力タンク内
の圧力が下限設定値より下がると作動して圧力タ
ンク内に空気を圧入すると共に圧力タンク内の圧
力が上限設定値よりも上がると作動を停止する空
気圧縮機を設け、該空気圧縮機の作動後、圧力タ
ンク内の圧力が下限設定値より下がると作動して
補給タンク内の清水を圧力タンク内に供給すると
共に圧力タンク内の圧力が上限設定値よりも上が
ると作動を停止する清水ポンプを設け、前記ダム
水供給路に空気圧縮機及び清水ポンプの作動中の
み閉鎖される第１電磁弁を設け、前記圧力水供給
路に停電時のみ閉鎖される第２電磁弁を設け、前
記清水供給路に停電時のみ開放される第３電磁弁
を設けたものである。Structure of the Invention In order to achieve the above object, the watertight rubber crimping device for a gate of the present invention includes a pressure tank that communicates with the watertight rubber of the gate through a pressure water supply path, and communicates the pressure tank with dam water. An expansion tank pump that provides a dam water supply path, an expansion tank above the pressure tank, a fresh water supply tank for storing dam water, and supplies the fresh water in the supply tank to the expansion tank. A fresh water supply path is provided to communicate between the expansion tank and the inside of the watertight rubber, and when the pressure inside the pressure tank drops below the lower limit setting, it is activated to pressurize air into the pressure tank and reduce the pressure inside the pressure tank. An air compressor is installed that stops operating when the pressure rises above the upper limit set value, and after the air compressor is activated, when the pressure in the pressure tank falls below the lower limit set value, the air compressor operates and drains fresh water from the supply tank into the pressure tank. A fresh water pump is provided that supplies water to the dam and stops operating when the pressure in the pressure tank rises above an upper limit set value, and a first solenoid valve that is closed only when the air compressor and the fresh water pump are in operation is provided in the dam water supply path. A second solenoid valve is provided in the pressurized water supply path that is closed only during a power outage, and a third solenoid valve that is opened only during a power outage is provided in the fresh water supply path.
実施例と作用
以下、本考案の一実施例を、第３図に基づいて
説明する。すなわちゲート３の水密ゴム５内に圧
力水供給路１７を介して連通する圧力タンク１８
を設け、該圧力タンク１８をダム水６に連通させ
るダム水供給路１９を設け、圧力タンク１８より
上方（たとえばダム天端）にエクスパンシヨンタ
ンク２０を設け、ダム水６を溜める清水補給タン
ク２１を設け、該補給タンク２１内の清水（兼不
凍液）をエクスパンシヨンタンク２０内に供給す
るエクスパンシヨンタンク用ポンプ２２を設け、
エクスパンシヨンタンク２０と水密ゴム５内とを
連通させる清水供給路２２を設け、圧力タンク１
８に安全弁２３と、圧力計２４と、２つのプレツ
シヤスイツチ２５，２６と、圧力の上下限を設定
する２つの発停器２７，２８とを設け、圧力タン
ク１８内の圧力が下限設定値より下がると作動し
て圧力タンク１８内に空気を圧入すると共に圧力
タンク１８内の圧力が上限設定値よりも上がると
作動を停止する一対の空気圧縮機２９を設け、該
空気圧縮機２９の作動後、圧力タンク１８内の圧
力が下限設定値より下がると作動して補給タンク
２１内の清水を圧力タンク１８内に供給すると共
に圧力タンク１８内の圧力が上限設定値よりも上
がると作動を停止する一対の清水ポンプ３０を設
け、前記ダム水供給路１９に空気圧縮機２９及び
清水ポンプ３０の作動中のみ閉鎖される第１電磁
弁３１を設け、前記圧力水供給路１７に停電時の
み閉鎖される第２電磁弁３２を設け、前記清水供
給路２２に停電時のみ開放される第３電磁弁３３
を設けたものである。３４は空気抜き管、３５は
減圧弁、３６は逆止弁、３７はエクスパンシヨン
タンク２０内の水位を一定に保持するためのフロ
ートスイツチである。なお空気圧縮機２９および
清水ポンプ３０を一対設けたのは、一方が故障し
たときまたはメンテナンス時に、他方を作動させ
るためである。Embodiment and operation Hereinafter, an embodiment of the present invention will be described based on FIG. 3. That is, a pressure tank 18 communicates with the watertight rubber 5 of the gate 3 via a pressure water supply path 17.
A dam water supply path 19 is provided for communicating the pressure tank 18 with the dam water 6, an expansion tank 20 is provided above the pressure tank 18 (for example, at the top of the dam), and a fresh water supply tank for storing the dam water 6 is provided. 21, and an expansion tank pump 22 for supplying fresh water (also antifreeze) in the supply tank 21 into the expansion tank 20,
A fresh water supply path 22 is provided that communicates the expansion tank 20 with the inside of the watertight rubber 5, and the pressure tank 1
8 is provided with a safety valve 23, a pressure gauge 24, two pressure switches 25, 26, and two start/stop devices 27, 28 for setting the upper and lower limits of pressure, so that the pressure in the pressure tank 18 is set to the lower limit. A pair of air compressors 29 are provided, which operate to pressurize air into the pressure tank 18 when the pressure in the pressure tank 18 falls below a set value, and stop operating when the pressure in the pressure tank 18 rises above the upper limit set value. After activation, when the pressure in the pressure tank 18 falls below the lower limit set value, it operates to supply fresh water in the replenishment tank 21 into the pressure tank 18, and when the pressure in the pressure tank 18 rises above the upper limit set value, it operates. A pair of fresh water pumps 30 that are stopped are provided, a first electromagnetic valve 31 that is closed only when the air compressor 29 and the fresh water pump 30 are in operation is provided in the dam water supply path 19, and a first electromagnetic valve 31 is provided in the pressure water supply path 17 only during a power outage. A second solenoid valve 32 that is closed is provided, and a third solenoid valve 33 is provided in the fresh water supply path 22 that is opened only during a power outage.
It has been established. 34 is an air vent pipe, 35 is a pressure reducing valve, 36 is a check valve, and 37 is a float switch for keeping the water level in the expansion tank 20 constant. The reason for providing a pair of air compressor 29 and fresh water pump 30 is to operate the other when one breaks down or during maintenance.
以下、上記構成における作用について説明す
る。まず通常のダム水位（30〜５ｍ）の場合に
は、圧力タンク１８内に供給されるダム水６の圧
力は３〜５Kg／cm2となり、そのダム水６の圧力が
圧力水供給路１９、圧力タンク１８および圧力水
供給路１７を介して水密ゴム５に作用し、その水
密ゴム５をゲート３に圧着させる。次にダム水位
が下がつてプレツシヤスイツチ２６により検出さ
れる圧力タンク１８内の圧力が下限設定値（たと
えば３Kg／cm2）より下がると、発停器２８からの
信号により空気圧縮機２９が作動させられ、圧力
タンク１８内に空気が圧入させられる。そしてプ
レツシヤスイツチ２６により検出される圧力タン
ク１８内の圧力が上限設定値（たとえば５Kg／
cm2）より上がると、発停器２８からの信号により
空気圧縮機２９の作動が停止させられる。したが
つてダム水位が下がつているにもかかわらず、水
密ゴム５は所定圧で圧着させられる。この状態で
たとえば圧力水供給路１７に水漏れがあれば圧力
タンク１８内の水が減少し、また圧力も下がつて
いく。そしてプレツシヤスイツチ２５により検出
される圧力タンク１８内の圧力が下限設定値（た
とえば2.5Kg／cm2）より下がると、発停器２７か
らの信号により清水ポンプ３０が作動させられ
る。そしてプレツシヤスイツチ２５により検出さ
れる圧力タンク１８内の圧力が上限設定値（たと
えば4.5Kg／cm2）より上がると、発停器２７から
の信号により清水ポンプ３０の作動が停止させら
れる。ここで清水ポンプ３０の運転は必ず空気圧
縮機２９の運転の後におこなうようシーケンス回
路を組んである。また清水ポンプ３０および空気
圧縮機２９の作動中は、第１電磁弁３１が閉じら
れており、逆止弁３６の作用とあいまつてダム側
へ圧力水が逆流しないようにしてある。次に停電
時には、第２電磁弁３２が閉じられると共に第３
電磁弁３３が開けられ、エクスパンシヨンタンク
２０内の水頭圧が水密ゴム５にかかり、この場合
にも水密ゴム５とゲート３との間の水密が破れる
ことはない。次に初期に不凍液を混入する場合と
か、不凍液を交換する場合には第１電磁弁３１を
閉じ、圧力タンク１８のエヤープラグを開け、清
水ポンプ３０を作動させればよい。これによつて
補給タンク２１内の不凍液・清水混合液が圧力タ
ンク１８および圧力水供給路１７を介して水密ゴ
ム５内に供給される。 Hereinafter, the effects of the above configuration will be explained. First, in the case of a normal dam water level (30 to 5 m), the pressure of the dam water 6 supplied to the pressure tank 18 is 3 to 5 kg/cm 2 , and the pressure of the dam water 6 is equal to the pressure of the pressure water supply channel 19, It acts on the watertight rubber 5 through the pressure tank 18 and the pressure water supply path 17, and presses the watertight rubber 5 onto the gate 3. Next, when the dam water level falls and the pressure in the pressure tank 18 detected by the pressure switch 26 falls below the lower limit set value (for example, 3Kg/cm 2 ), a signal from the start/stop device 28 sends a signal to the air compressor 29. is activated, and air is forced into the pressure tank 18. Then, the pressure in the pressure tank 18 detected by the pressure switch 26 becomes the upper limit setting value (for example, 5 kg/
cm 2 ), a signal from the start/stop device 28 causes the air compressor 29 to stop operating. Therefore, even though the dam water level is decreasing, the watertight rubber 5 is pressed under a predetermined pressure. In this state, if there is a water leak in the pressure water supply path 17, for example, the water in the pressure tank 18 will decrease, and the pressure will also decrease. When the pressure in the pressure tank 18 detected by the pressure switch 25 falls below a lower limit set value (for example, 2.5 kg/cm 2 ), the fresh water pump 30 is activated by a signal from the start/stop device 27. When the pressure in the pressure tank 18 detected by the pressure switch 25 rises above the upper limit set value (for example, 4.5 kg/cm 2 ), the operation of the fresh water pump 30 is stopped by a signal from the start/stop device 27. Here, a sequence circuit is constructed so that the fresh water pump 30 is always operated after the air compressor 29 is operated. Further, while the fresh water pump 30 and the air compressor 29 are in operation, the first electromagnetic valve 31 is closed, which, together with the action of the check valve 36, prevents pressure water from flowing back toward the dam side. Next, during a power outage, the second solenoid valve 32 is closed and the third solenoid valve 32 is closed.
When the solenoid valve 33 is opened, the head pressure in the expansion tank 20 is applied to the watertight rubber 5, and the watertightness between the watertight rubber 5 and the gate 3 is not broken in this case as well. Next, when initially mixing antifreeze or replacing the antifreeze, the first solenoid valve 31 may be closed, the air plug of the pressure tank 18 may be opened, and the fresh water pump 30 may be operated. As a result, the antifreeze/fresh water mixture in the supply tank 21 is supplied into the watertight rubber 5 via the pressure tank 18 and the pressure water supply path 17.
考案の効果 本考案によれば次のような効果が得られる。Effect of invention According to the present invention, the following effects can be obtained.
(1) 従来の加圧シリンダの代りに圧力タンクを用
いており、この圧力タンクは故障しにくく、長
期間にわたつて安定して使用できる。(1) A pressure tank is used instead of the conventional pressurized cylinder, and this pressure tank is less likely to break down and can be used stably over a long period of time.
(2) 従来、リークが生じやすかつた切替バルブを
用いていない。したがつて空気圧縮機および清
水ポンプの作動回数は少なく、経済的である。(2) A switching valve, which is prone to leaks, is not used in the past. Therefore, the number of operations of the air compressor and fresh water pump is small, making it economical.
(3) 常時の加圧はダム水圧のみであるので、経済
性に優れている。(3) Since the only constant pressurization is the dam water pressure, it is highly economical.
(4) ダム水位が下がつても、圧力タンク内に空気
を圧入することにより水密ゴムの圧着力は低下
しない。(4) Even if the dam water level drops, the pressure force of the watertight rubber will not decrease by forcing air into the pressure tank.
(5) 空気を圧入してもリークにより圧力が低下す
る場合には圧力タンク内に清水が供給され、水
密ゴムの圧着力が低下しないようにすることが
できる。(5) If the pressure decreases due to leakage even after pressurizing air, fresh water is supplied into the pressure tank to prevent the pressure force of the watertight rubber from decreasing.
(6) 停電時には、エクスパンシヨンタンク内の水
頭圧により水密ゴムの圧着力を無動力で保持す
ることができる。(6) During a power outage, the water head pressure in the expansion tank can maintain the pressure of the watertight rubber without power.
第１図はダム要部の縦断面図、第２図は従来例
を示す概略説明図、第３図は本考案の一実施例を
示す概略説明図である。
３……高圧ラジアルゲート、５……水密ゴム、
６……ダム水、１７……圧力水供給路、１８……
圧力タンク、１９……ダム水供給路、２０……エ
クスパンシヨンタンク、２１……補給タンク、２
２……清水供給路、２９……空気圧縮機、３０…
…清水ポンプ、３１……第１電磁弁、３２……第
２電磁弁、３３……第３電磁弁。
FIG. 1 is a longitudinal sectional view of the main part of a dam, FIG. 2 is a schematic explanatory diagram showing a conventional example, and FIG. 3 is a schematic explanatory diagram showing an embodiment of the present invention. 3...High pressure radial gate, 5...Watertight rubber,
6...Dam water, 17...Pressure water supply line, 18...
Pressure tank, 19... Dam water supply channel, 20... Expansion tank, 21... Supply tank, 2
2... Fresh water supply line, 29... Air compressor, 30...
...Fresh water pump, 31...First solenoid valve, 32...Second solenoid valve, 33...Third solenoid valve.
Claims (1)
通する圧力タンクを設け、該圧力タンクをダム水
に連通させるダム水供給路を設け、圧力タンクよ
り上方にエクスパンシヨンタンクを設け、ダム水
を溜める清水補給タンクを設け、該補給タンク内
の清水をエクスパンシヨンタンク内に供給するエ
クスパンシヨンタンク用ポンプを設け、エクスパ
ンシヨンタンクと水密ゴム内とを連通させる清水
供給路を設け、圧力タンク内の圧力が下限設定値
より下がると作動して圧力タンク内に空気を圧入
すると共に圧力タンク内の圧力が上限設定値より
も上がると作動を停止する空気圧縮機を設け、該
空気圧縮機の作動後、圧力タンク内の圧力が下限
設定値より下がると作動して補給タンク内の清水
を圧力タンク内に供給すると共に圧力タンク内の
圧力が上限設定値よりも上がると作動を停止する
清水ポンプを設け、前記ダム水供給路に空気圧縮
機及び清水ポンプの作動中のみ閉鎖される第１電
磁弁を設け、前記圧力水供給路に停電時のみ閉鎖
される第２電磁弁を設け、前記清水供給路に停電
時のみ開放される第３電磁弁を設けたことを特徴
とするゲートの水密ゴム圧着装置。 A pressure tank is provided in the watertight rubber of the gate that communicates via a pressure water supply path, a dam water supply path is provided that connects the pressure tank to the dam water, and an expansion tank is provided above the pressure tank to connect the dam water. A fresh water replenishment tank for storing water is provided, an expansion tank pump is provided to supply the fresh water in the replenishment tank to the expansion tank, and a fresh water supply path is provided to communicate the expansion tank with the interior of the watertight rubber; An air compressor is provided which operates when the pressure in the pressure tank falls below a lower limit set value, pressurizes air into the pressure tank, and stops operating when the pressure within the pressure tank rises above an upper limit set value, and the air compressor is operated to compress the air. After the machine is activated, when the pressure in the pressure tank falls below the lower limit set value, it will start and supply fresh water from the replenishment tank into the pressure tank, and if the pressure in the pressure tank rises above the upper limit set value, it will stop operating. a fresh water pump is provided, a first solenoid valve that is closed only when the air compressor and the fresh water pump are in operation is provided in the dam water supply path, and a second solenoid valve that is closed only during a power outage is provided in the pressure water supply path; A watertight rubber crimping device for a gate, characterized in that the fresh water supply path is provided with a third solenoid valve that is opened only during a power outage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19200983U JPS60100428U (en) | 1983-12-12 | 1983-12-12 | Gate watertight rubber crimping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19200983U JPS60100428U (en) | 1983-12-12 | 1983-12-12 | Gate watertight rubber crimping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60100428U JPS60100428U (en) | 1985-07-09 |
| JPS6231455Y2 true JPS6231455Y2 (en) | 1987-08-12 |
Family
ID=30413328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19200983U Granted JPS60100428U (en) | 1983-12-12 | 1983-12-12 | Gate watertight rubber crimping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60100428U (en) |
-
1983
- 1983-12-12 JP JP19200983U patent/JPS60100428U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60100428U (en) | 1985-07-09 |
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