JP2000112531A - Device for adjusting water level - Google Patents
Device for adjusting water levelInfo
- Publication number
- JP2000112531A JP2000112531A JP10278621A JP27862198A JP2000112531A JP 2000112531 A JP2000112531 A JP 2000112531A JP 10278621 A JP10278621 A JP 10278621A JP 27862198 A JP27862198 A JP 27862198A JP 2000112531 A JP2000112531 A JP 2000112531A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water level
- float
- tank body
- injection pipe
- 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
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は槽体内の水位変化に
応じてフロートを昇降させ、当該槽体内への注水を断続
的に行う水位調整装置に関し、特に上下方向に重畳して
配置された槽体間に設けられ、下の段の槽体内の水位が
低下したときにこれを補うべく上の段の槽体から注水を
行う水位調整装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level adjusting device for raising and lowering a float in response to a change in the water level in a tank, and intermittently injecting water into the tank. The present invention relates to a water level adjusting device that is provided between bodies and that injects water from an upper tank to compensate for a decrease in water level in a lower tank.
【０００２】[0002]
【従来の技術】従来、フロートを用いた水位調整装置と
して、例えば特開平07-203780号公報記載の灌漑用水位
調整バルブが知られている。この装置は、図６に示すよ
うに鉛直方向に延びるバルブ本体２１内に、弁体２２の
上昇作動によって閉塞される弁座２３を形成するととも
に、バルブ本体２１の下方にフロート２４を配置し、フ
ロート２４と弁体２２とを連結部材２５で一体的に昇降
可能に連結してなる。バルブ本体２１の上端は上の段の
槽体（図示省略）の底部に接続されており、下の段の槽
体２６内の水位が低いときは、図６（ａ）に示すように
上の段の槽体内の水２７がバルブ本体２１を通して下の
段の槽体２６内に注水される。そして、この注水によっ
て下の段の槽体２６内の水位が上昇するとフロート２４
が上昇し、図６（ｂ）に示すように所定の水位に達した
時点で、フロート２４とともに上昇した弁体２２によっ
て弁座２３が閉塞され、注水が停止する仕組みになって
いる。この装置によれば、槽体２６内の水位を検知する
センサや弁体２２を作動させるためのモータ、電磁ソレ
ノイドなど電気系統を何ら用いることなく、上の段の槽
体から下の段の槽体２６へ断続的に自動給水することが
できる。2. Description of the Related Art Conventionally, as a water level adjusting device using a float, for example, an irrigation water level adjusting valve described in JP-A-07-203780 is known. This device forms a valve seat 23 closed by a rising operation of a valve body 22 in a valve body 21 extending in a vertical direction as shown in FIG. 6, and arranges a float 24 below the valve body 21. The float 24 and the valve body 22 are integrally connected by a connecting member 25 so as to be able to move up and down. The upper end of the valve body 21 is connected to the bottom of the upper tank (not shown). When the water level in the lower tank 26 is low, the upper end of the valve body 21 as shown in FIG. Water 27 in the lower tank is injected into the lower tank 26 through the valve body 21. When the water level in the lower tank 26 rises due to this water injection, the float 24
As shown in FIG. 6 (b), when the water level reaches a predetermined level, the valve seat 23 is closed by the valve body 22 which has been raised together with the float 24, and the injection of water is stopped. According to this device, a sensor for detecting the water level in the tank body 26, a motor for operating the valve body 22, and a lower tank from the upper tank body without using any electric system such as an electromagnetic solenoid. Automatic water supply to the body 26 can be intermittently performed.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記従来の水
位調整装置は、弁体２２とこれを支持する連結部材２５
とを、バルブ本体２１の下方に設けた一つのフロート２
４の浮力のみで上の段の槽体内の水圧に抗して上昇させ
る構造になっているため、大きな浮力を得るためにフロ
ート２４を大型化せざるを得ない。また、下の段の槽体
２４内の水位が所定の水位から低下すると、上の段の槽
体内の水圧で弁体２２が押し下げられて弁座２２が一気
に開放され、その途端に急激に水が流れ落ちてしまうた
め、大きな衝撃音が生じたり、弁体２２やフロート２４
などが損傷したりするといった問題がある。また、バル
ブ本体２１の内部に弁座２３を設けているため、構造が
複雑であるばかりでなく、この部分に塵や泥、析出物な
どが堆積し、詰まりが生じやすくなる。そこで本発明が
解決しようとする課題は、上記従来の技術の問題点を解
消することにある。すなわち本発明は、上下方向に重畳
して配置された槽体間に設けられ、下の段の槽体内の水
位変化に応じてフロートを昇降させることにより、下の
段の槽体内の水位が低下したときにこれを補うべく上の
段の槽体から注水する水位調整装置において、注水の際
に急激に水が流れ落ちるのを防止するとともに、装置の
構成及び構造の単純化、小型化を図ることにある。However, the above-mentioned conventional water level adjusting device has a valve body 22 and a connecting member 25 for supporting the valve body.
And one float 2 provided below the valve body 21.
Since only the buoyancy of 4 is used to raise the water against the water pressure in the upper tank, the float 24 must be enlarged to obtain a large buoyancy. Also, when the water level in the lower stage tank body 24 drops below a predetermined water level, the valve body 22 is pushed down by the water pressure in the upper stage tank body, and the valve seat 22 is opened at a stretch, and immediately upon that, Since the water flows down, a loud impact noise is generated, and the valve body 22 and the float 24
There is a problem such as damage. In addition, since the valve seat 23 is provided inside the valve body 21, not only the structure is complicated, but also dust, mud, precipitates, and the like are deposited on this portion, and clogging is likely to occur. Therefore, a problem to be solved by the present invention is to solve the above-mentioned problems of the conventional technology. That is, the present invention is provided between tank bodies arranged in a vertically overlapping manner, and raises and lowers the float according to a change in the water level in the lower tank body, thereby lowering the water level in the lower tank body. In a water level adjustment device that injects water from the upper tank to compensate for this, when the water is injected, it is necessary to prevent the water from suddenly flowing down and to simplify and reduce the size and structure of the device. It is in.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、上下方向に重畳して配置された槽体間に
設けられ、下の段の槽体内の水位が低下したときにこれ
を補うべく上の段の槽体から注水する水位調整装置を対
象とし、上の段の槽体内の水を下の段の槽体内へ導くべ
く上の段の槽体の底部開口部に接続された鉛直方向下方
に延びる筒状の注水管と、前記注水管の下方に設けられ
下の段の槽体内の水位変動に伴って上下に移動するメイ
ンフロートと、前記注水管内に設けられたサブフロート
と、前記メインフロートと前記サブフロートとを互いに
離間させて一体的に昇降可能に連結した連結部材とを備
え、下の段の槽体内の水位が所定水位まで上昇したと
き、前記メインフロートによって前記注水管の下端開口
部を閉塞し、下の段の槽体内の水位が所定水位から低下
したとき、前記サブフロートの浮力を前記メインフロー
トに作用させつつ、前記メインフロートを下降させて前
記注水管の下端開口部を開放するように構成したもので
ある。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is provided between tanks which are vertically overlapped and arranged when the water level in the lower tank is lowered. In order to compensate for this, it is intended for a water level adjustment device that injects water from the upper tank, and connects to the bottom opening of the upper tank to guide the water in the upper tank to the lower tank A vertically extending cylindrical water injection pipe, a main float provided below the water injection pipe and moving up and down in accordance with a water level fluctuation in a lower tank body, and a sub-water supply pipe provided in the water injection pipe. A float, and a connecting member that connects the main float and the sub-float so as to be separated from each other so as to be able to move up and down integrally, and when the water level in the lower tank body rises to a predetermined water level, the main float Close the lower end opening of the water injection pipe, and When the water level in the tank falls below a predetermined level, the buoyancy of the sub-float is applied to the main float, and the main float is lowered to open the lower end opening of the water injection pipe. .
【０００５】上記水位調整装置において、前記注水管の
下端部は、前記メインフロートの上端部を受け入れてこ
れと密着係合するように形成されていることが望まし
い。たとえば、前記メインフロートの形状が球状或いは
円錐状であれば、前記注水管の下端部は前記メインフロ
ートよりも小径の円環形状とする。また、前記注水管の
下端部には前記メインフロートとの当接部を縁取るよう
にしてシール部材を設けておくことがより望ましい。こ
の発明によれば、下の段の槽体内の水に浮かぶ前記メイ
ンフロートの浮力と、前記注水管の前記サブフロートの
浮力とを合成した浮力により、上の段の槽体内の水圧に
抗して前記メインフロートを上昇させる構造になってい
るため、前記メインフロートを小型化できるし、前記サ
ブフロートは前記注水管の内部に収容されているので、
これを設けたことによって装置が大型化することはな
い。また、下の段の槽体内の水位が所定の水位から低下
したとき、前記サブフロートの浮力を前記メインフロー
トに作用させつつ、前記メインフロートを下降させて前
記注水管の下端開口部を開放するように構成したので、
注水の際に急激に水が流れ落ちるのを防止できる。[0005] In the above water level adjusting device, it is preferable that a lower end portion of the water injection pipe is formed so as to receive an upper end portion of the main float and to be tightly engaged therewith. For example, if the shape of the main float is spherical or conical, the lower end of the water injection pipe is formed in an annular shape having a smaller diameter than the main float. It is more preferable that a seal member is provided at a lower end portion of the water injection pipe so as to border a contact portion with the main float. According to the present invention, the buoyancy of the main float floating on the water in the lower tank body and the buoyancy of the sub-float of the injection pipe are combined to withstand the water pressure in the upper tank body. Since the main float is raised, the main float can be downsized, and the sub-float is housed inside the water injection pipe.
This arrangement does not increase the size of the device. Further, when the water level in the lower stage tank body falls from a predetermined water level, the main float is lowered to open the lower end opening of the water injection pipe while applying the buoyancy of the sub-float to the main float. Because it was configured as
Water can be prevented from suddenly flowing down during water injection.
【０００６】また、前記注水管の内部に弁座を設けず、
前記注水管の下端部を弁座として機能させ、前記メイン
フロート自体を弁体として機能させるようにしたため、
装置の構造及び構成を極めて単純化でき、しかも塵や
泥、析出物などによる前記注水管の詰まりが生じ難い。
そのうえ更に、前記サブフロートが上下動して前記注水
管内を攪拌するため、前記注水管の詰まりが完全に防止
されるという利点もある。なお、ここで「水」とは、厳
密に化学的な意味における水を指すものではなく、泥
水、汚水、下水、農業用水、引用水、塩水など、広く液
体一般を指すものであり、「水位」は「液位」と同じ意
味である。Further, no valve seat is provided inside the water injection pipe,
Because the lower end of the water injection pipe functioned as a valve seat and the main float itself functioned as a valve body,
The structure and configuration of the apparatus can be extremely simplified, and the water injection pipe is less likely to be clogged by dust, mud, precipitates and the like.
Furthermore, since the sub-float moves up and down to stir the inside of the water injection pipe, there is an advantage that the clogging of the water injection pipe is completely prevented. Here, “water” does not refer to water in a strictly chemical sense, but refers to a wide range of liquids in general, such as muddy water, sewage, sewage, agricultural water, cited water, and salt water. "Has the same meaning as" liquid level. "
【０００７】[0007]
【発明の実施の形態】次に本発明の実施の形態について
図面を参照して詳細に説明する。図１（ａ）、（ｂ）は
本発明に係る水位調整装置の実施の形態の一例を示す概
略断面図であり、水位調整装置１は、上下に互いに離間
して重畳配置された２つの槽体２、３間に設けられてい
る。ここで、上段の槽体２内は図示しない給水源からの
給水により常時適度の水量が保たれており、下段の槽体
３内の水は図示しない加熱手段により加熱されて徐々に
蒸発しているものとする。水位調整装置１は、上段の槽
体２内の水４を下段の槽体３内へ導くべく上段の槽体２
の底部開口部５に接続された鉛直方向下方に延びる円筒
状の直管からなる注水管６と、注水管６の下方に設けら
れ下段の槽体３内の水位変動に伴って上下に移動する略
真球形状のメインフロート７と、注水管６内に設けられ
た略卵形状のサブフロート８と、メインフロート７とサ
ブフロート８とを互いに離間させて一体的に昇降可能に
連結している連結棒９とからなり、下段の槽体３内の水
位が所定水位まで上昇したとき、図１（ｂ）のようにメ
インフロート７によって注水管６の下端開口部６ａを閉
塞するように構成されている。注水管６の下端部には、
メインフロート７との当接部を縁取るようにして、ゴ
ム、プラスチックなどの樹脂からなる環状のパッキン
（シール部材）１０が取り付けられている。水位調整装
置１によれば、下段の槽体３内の水位が低いときは、図
１（ａ）に示すように上段の槽体２内の水４が注水管６
を通して下段の槽体３内に注水される。そして、この注
水によって下段の槽体３内の水位が上昇するとメインフ
ロート７が上昇し、図１（ｂ）に示すように所定の水位
に達した時点で、メインフロート７の上端部により注水
管６の下端開口部６ａが閉塞され注水が停止される。図
１（ｂ）の状態になった後、下段の槽体３内の水位が低
下すると、メインフロート７が注水管６内に設けられた
サブフロート８の浮力を受けつつ下降し、注水管６の下
端開口部６ａが開放され、注水管６を通して下段の槽体
３内に注水が行われる。この水位調整装置１によれば、
下段の槽体３内の水に浮かぶメインフロート７の浮力
と、注水管６内に設けたサブフロート８の浮力とを合成
した浮力により、上段の槽体２内の水圧に抗してメイン
フロート７を上昇させる構造になっているため、メイン
フロート７を小型化できる。しかもサブフロート８は注
水管６の内部に収容されているので、サブフロート８を
設けたことによって装置が大型化することはない。Embodiments of the present invention will now be described in detail with reference to the drawings. FIGS. 1A and 1B are schematic cross-sectional views illustrating an example of an embodiment of a water level adjusting device according to the present invention. The water level adjusting device 1 includes two tanks that are vertically overlapped with each other. It is provided between the bodies 2 and 3. Here, an appropriate amount of water is always maintained in the upper tank 2 by supplying water from a water supply source (not shown), and the water in the lower tank 3 is gradually evaporated by being heated by a heating means (not shown). Shall be The water level adjusting device 1 controls the upper tank 2 to guide the water 4 in the upper tank 2 into the lower tank 3.
And a water injection pipe 6 formed of a cylindrical straight pipe extending downward in the vertical direction connected to the bottom opening 5 of the water tank and moving up and down in accordance with a water level fluctuation in the lower tank body 3 provided below the water injection pipe 6. A substantially spherical main float 7, a substantially egg-shaped sub-float 8 provided in the water injection pipe 6, and the main float 7 and the sub-float 8 are connected to each other so as to be able to ascend and descend integrally with each other. When the water level in the lower tank body 3 rises to a predetermined level, the lower end opening 6a of the water injection pipe 6 is closed by the main float 7 as shown in FIG. 1B. ing. At the lower end of the water injection pipe 6,
An annular packing (seal member) 10 made of a resin such as rubber or plastic is attached so as to border a contact portion with the main float 7. According to the water level adjusting device 1, when the water level in the lower tank body 3 is low, the water 4 in the upper tank body 2 is filled with the injection pipe 6 as shown in FIG.
And water is injected into the lower tank body 3. When the water level in the lower tank body 3 rises due to this water injection, the main float 7 rises, and when the water level reaches a predetermined level as shown in FIG. The lower end opening 6a of 6 is closed and the injection of water is stopped. When the water level in the lower tank body 3 drops after the state shown in FIG. 1B is reached, the main float 7 descends while receiving the buoyancy of the sub-float 8 provided in the water injection pipe 6. The lower end opening 6a is opened, and water is injected into the lower tank body 3 through the water injection pipe 6. According to this water level adjusting device 1,
By the buoyancy obtained by combining the buoyancy of the main float 7 floating in the water in the lower tank body 3 and the buoyancy of the sub-float 8 provided in the injection pipe 6, the main float is opposed to the water pressure in the upper tank body 2. Since the structure is such that the main float 7 is raised, the size of the main float 7 can be reduced. Moreover, since the sub-float 8 is housed inside the water injection pipe 6, the provision of the sub-float 8 does not increase the size of the apparatus.
【０００８】また、下段の槽体３内の水位が所定の水位
から低下したとき、サブフロート８の浮力をメインフロ
ート７に作用させつつ、メインフロート７を下降させて
注水管６の下端開口部６ａを開放するように構成したの
で、注水の際に注水管６を通して水が急激に流れ落ちる
のを防止できる。その結果、サブフロート８及びメイン
フロート７の急激な落下、水の落下などにより大きな衝
撃音が生じたり、サブフロート８やメインフロート７な
どが損傷したりするのを防止できる。また、槽体２、３
内の水温が沸騰温度など高温に達している場合、注水管
６を通して水が急激に流れ落ちると、高温水が周囲へ飛
散して作業者に危険を及ぼす可能性があるが、この水位
調整装置１によればこのような危険も防止できる。ま
た、注水管６の内部に弁座を設けず、注水管６の下端部
を弁座として機能させ、メインフロート７自体を弁体と
して機能させるようにしたため、装置の構造及び構成を
極めて単純化でき、しかも塵や泥、析出物などによる注
水管６の詰まりが生じ難い。その上さらに、サブフロー
ト８が上下動して注水管６内を攪拌することによって、
注水管６の詰まりが完全に防止される。When the water level in the lower tank body 3 drops below a predetermined level, the main float 7 is lowered while the buoyancy of the sub-float 8 acts on the main float 7 to open the lower end opening of the water injection pipe 6. Since the opening 6a is configured to be open, it is possible to prevent the water from suddenly flowing down through the water injection pipe 6 during water injection. As a result, it is possible to prevent the sub-float 8 and the main float 7 from suddenly dropping, dropping water, and the like, generating loud impact noise, and preventing the sub-float 8 and the main float 7 from being damaged. In addition, tank bodies 2, 3
If the temperature of the water inside the container reaches a high temperature such as the boiling temperature, and the water suddenly flows down through the water injection pipe 6, the high-temperature water may scatter to the surroundings and pose a danger to the operator. According to this, such a danger can be prevented. In addition, since the valve seat is not provided inside the water injection pipe 6, the lower end of the water injection pipe 6 functions as a valve seat, and the main float 7 itself functions as a valve body. Therefore, the structure and configuration of the apparatus are extremely simplified. In addition, clogging of the water injection pipe 6 due to dust, mud, precipitates, and the like hardly occurs. Furthermore, the sub-float 8 moves up and down to stir the inside of the water injection pipe 6,
The clogging of the water injection pipe 6 is completely prevented.
【０００９】上記の例では、注水管６に円筒状の直管を
用い、メインフロート７に略真球形状のものを用いた場
合を示したが、これらの構成要素の構造・形状はこれに
限るものではなく、注水管６の下端部が、メインフロー
ト７の上端部を受け入れてこれと密着係合するように形
成されていればよい。たとえば、図２に示すように、円
筒状の注水管６に対しメインフロート７は円錐形状とし
てもよい。また、図３に示すように、メインフロート７
の本体７ａを円盤状とし、本体７ａの上に円錐状の弁体
部７ｂを設けてもよい。また、上記の例では、注水管６
の下端部にパッキン１０を設けたが、注水管６とメイン
フロート７との間からの水漏れをさほど問題にしない場
合、パッキン１０は必ずしも必要ない。ただし、その場
合でも、メインフロート７が上昇して注水管６と当接し
た際の衝撃を緩和する目的で弾性体からなるパッキン１
０を設けておくことが望ましい。また、パッキン１０の
材料はゴムやプラスチックに限るものではなく、使用環
境や使用目的に応じて適切なものを選べばよい。たとえ
ば、高温環境で使用する場合には耐熱材からなるパッキ
ンを、腐食性のある液体を対象とする場合には耐食性に
優れたパッキンを使用する。また、サブフロート８やメ
インフロート７の横振れ（水平方向の変位）を小さくす
る必要があれば、サブフロート８またはメインフロート
７の水平方向の移動を規制し上下方向には移動を許すガ
イド部材を装備すればよい。以上説明した水位調整装置
１は、たとえば階段状に設けられた棚田に用水を順次供
給しつつ水田の水位を一定に制御する灌漑用の水位調整
装置や、多段式平釜製法を用いた自然海塩製造装置にお
いて各平釜内の塩水の水位を制御するための水位調整装
置などに有効に適用できる。In the above example, a case where a cylindrical straight pipe is used as the water injection pipe 6 and a substantially spherical one is used as the main float 7 is shown. The present invention is not limited to this, and it suffices that the lower end of the water injection pipe 6 is formed so as to receive the upper end of the main float 7 and to be tightly engaged therewith. For example, as shown in FIG. 2, the main float 7 may have a conical shape with respect to the cylindrical water injection pipe 6. Further, as shown in FIG.
The main body 7a may have a disk shape, and a conical valve body 7b may be provided on the main body 7a. In the above example, the water injection pipe 6
The packing 10 is not necessarily required when the leakage from the space between the water injection pipe 6 and the main float 7 does not matter much. However, even in this case, the packing 1 made of an elastic body is used for the purpose of reducing the impact when the main float 7 rises and comes into contact with the water injection pipe 6.
It is desirable to provide 0. Further, the material of the packing 10 is not limited to rubber or plastic, but may be selected appropriately according to the use environment and use purpose. For example, a packing made of a heat-resistant material is used when used in a high-temperature environment, and a packing excellent in corrosion resistance is used when a corrosive liquid is used. If it is necessary to reduce the lateral deflection (horizontal displacement) of the sub-float 8 or the main float 7, a guide member that restricts the horizontal movement of the sub-float 8 or the main float 7 and allows the vertical movement. I just need to equip it. The water level adjusting device 1 described above is, for example, a water level adjusting device for irrigation for controlling water level of a paddy field to be constant while sequentially supplying water to terraced rice terraces, or a natural sea using a multi-stage flat pot manufacturing method. The present invention can be effectively applied to a water level adjusting device for controlling the level of salt water in each flat pot in a salt manufacturing apparatus.
【００１０】多段式平釜製法とは、本発明者が提案した
自然海塩製造方法である。この方法による製塩装置は、
たとえば図４に示すように、鉛直方向に互いに離間させ
て重ねて設置された複数個（この例では４個の釜（槽
体）１１−１〜１１−４と、釜１１−１〜１１−４内の
塩水を一括して加熱すべく設けられた熱媒管１２と、熱
媒管１２内へ高温（上記の場合約１４０゜Ｃ、油の場合
約３４０゜Ｃ）の熱媒を送り込み循環させる熱媒加熱装
置１３と、海からポンプで汲み上げた塩水を最上段の釜
１１−１に注水する原料注水装置１４とを備えて概ね構
成される。釜１１−１〜１１−４は、幅寸法に対して高
さ寸法が小さく且つ上部が開放された同形同寸のステン
レス製の槽体であり、図示しない支持構造体により強固
に支持されている。これらの釜１１−１〜１１−４に
は、順次下の釜へ塩水を移すために、上下の釜間に本発
明に係る水位調整装置１−１〜１−３が設けられてい
る。水位調整装置１−１〜１−３の注水管６は、釜１１
−１〜１１−４と同じくステンレス製である。また、メ
インフロート７、サブフロート８及び連結棒９はステン
レス製またはチタン製である。最下段の釜１１−１に
は、内容物（飽和または過飽和状態の塩水、あるいは塩
が析出した状態の塩水）を回収するための図示しない排
出口が設けられており、排出口を開くことにより、図示
しない回収釜等に釜１１−１内の内容物を移すことがで
きるようになっている。The multi-stage flat pot production method is a method for producing natural sea salt proposed by the present inventors. The salt making device according to this method is
For example, as shown in FIG. 4, a plurality of pots (in this example, four pots (tank bodies) 11-1 to 11-4 and four pots 11-1 to 11- A heat medium pipe 12 provided to heat the salt water in the batch 4 at a time, and a high-temperature (about 140 ° C. in the above case, about 340 ° C. in the case of oil) heat medium is fed into the heat medium pipe 12 and circulated. A heating medium heating device 13 to be heated and a raw material water injection device 14 for injecting salt water pumped from the sea by a pump into a top-stage kettle 11-1 are generally configured. These are stainless steel tanks of the same shape and the same size, whose height is smaller than the size and whose upper part is open, and which is firmly supported by a support structure (not shown). 4, a water level adjusting device according to the present invention between upper and lower kettles for sequentially transferring salt water to a lower kettle. -1～1-3 it is provided. Water injection tube 6 of the water level adjusting device 1-1 to 1-3, kettle 11
It is made of stainless steel like -1 to 11-4. The main float 7, the sub-float 8, and the connecting rod 9 are made of stainless steel or titanium. The lower kettle 11-1 is provided with a discharge port (not shown) for recovering contents (saturated or supersaturated salt water or salt water in a state where salt is precipitated). The contents in the pot 11-1 can be transferred to a collecting pot (not shown).
【００１１】次に、この製塩装置による製塩方法につい
て説明する。まず、海から塩水をポンプで汲み上げ原料
注水装置１４により最上段の釜１１−４に塩水を注ぐ。
このとき各水位調整装置１の注水管６の下端開口部６ａ
は開放されているので、最上段の釜１１−４に注がれた
塩水が順次下の段の釜１１−３〜１１−１内へ流下し、
先ず最下段の釜１１−１に溜まり始める。そして、最下
段の釜１１−１に所定量の塩水が溜ると、水位調整装置
１−１の注水管６の下端開口部６ａがメインフロート７
により閉塞され、その上の段の釜１１−２に塩水が溜ま
り始める。そして、その釜１１−２に所定量の塩水が溜
ると、水位調整装置１−２の注水管６の下端開口部６ａ
がメインフロート７により閉塞され、更にその上の段の
釜１１−３に塩水が溜まり始める。そして、その釜１１
−３に所定量の塩水が溜ると、水位調整装置１−３の注
水管６の下端開口部６ａがメインフロート７により閉塞
され、更に最上段の釜１１−４に塩水が溜まり始める。
そして、最上段の釜１１−４に所定量の塩水が溜まった
時点で原料注水装置１４による注水を停止し、熱媒管１
２による塩水の加熱を開始する。熱媒加熱装置１３を出
た熱媒は、先ず最下段の釜１１−１内に敷設された熱媒
管１２内を通過し、順次上の段の釜１１−２〜１１−４
内に敷設された熱媒管１２内を通って熱媒加熱装置１３
に戻り、再度加熱されて循環使用される。Next, a salt production method using this salt production apparatus will be described. First, salt water is pumped from the sea, and the salt water is poured into the uppermost pot 11-4 by the raw material injection device 14.
At this time, the lower end opening 6a of the water injection pipe 6 of each water level adjusting device 1
Is open, the salt water poured into the uppermost pot 11-4 sequentially flows down into the lower pots 11-3 to 11-1.
First, it starts to accumulate in the lower pot 11-1. When a predetermined amount of salt water accumulates in the bottom kettle 11-1, the lower end opening 6a of the water injection pipe 6 of the water level adjusting device 1-1 is closed by the main float 7
And the salt water starts to accumulate in the pot 11-2 in the upper stage. Then, when a predetermined amount of salt water accumulates in the kettle 11-2, the lower end opening 6a of the water injection pipe 6 of the water level adjusting device 1-2.
Is closed by the main float 7, and salt water starts to accumulate in the pot 11-3 in the upper stage. And the pot 11
When a predetermined amount of salt water accumulates in the tank -3, the lower end opening 6a of the water injection pipe 6 of the water level adjusting device 1-3 is closed by the main float 7, and salt water starts to accumulate in the uppermost pot 11-4.
Then, when a predetermined amount of salt water has accumulated in the uppermost pot 11-4, the water injection by the raw material injection device 14 is stopped, and the heat medium pipe 1 is stopped.
2. Start the heating of the brine with 2. The heat medium that has exited the heat medium heating device 13 first passes through the heat medium pipe 12 laid in the lowermost pot 11-1, and sequentially goes to upper pots 11-2 to 11-4.
Heat medium heating device 13 passes through heat medium pipe 12 laid inside
And heated again to be used in circulation.
【００１２】その際、熱媒管１２の内外温度差による破
損などを防止するために、初めは熱媒管１２のバルブ１
２ａ、１２ｂを少しだけ開き、少量の熱媒によって熱媒
管１２を徐々に加温していく。そして、熱媒管１２が所
定温度に暖まったら、バルブ１２ａ、１２ｂの開度を大
きくし、流量調整を行いつつ高温熱媒を熱媒管１２内に
流入させて塩水の加熱を行う。すると、熱媒管１２内を
流れる高温熱媒により、全ての段の釜１１−１〜１１−
４内の塩水が熱媒管１２の管壁を介して加熱され、やが
て沸騰し始める。そして、沸騰による水分蒸発に伴っ
て、各釜１１−１〜１１−４内の塩水の水位が徐々に低
下していく。このとき最下段の釜１１−１内の塩水が最
も高温で加熱されるため、釜１１−１内の水位が最も急
速に低下する。そして、最下段の釜１１−１内の水位が
所定水位から低下することにより、先ず最初に水位調整
装置１−１のメインフロート７が注水管６内に設けられ
たサブフロート８の浮力を受けつつ下降し、注水管６の
下端開口部６ａが開放される。これにより、最下段の釜
１１−１内にその上の段すなわち下から２段目の釜１１
−２から注水管６を通して注水が行われる。このとき最
下段の釜１１−１に注ぎ足される塩水は既に高温（沸騰
温度）に加熱されているので、最下段の釜内の塩水温度
は上記注水によっても低下しない。その後も、最下段の
釜１１−１の水位が所定水位から低下する毎に、下から
２段目の釜１１−２から注水が繰り返される。また、下
から２段目の釜１１−２の水位低下分はさらにその上の
釜１１−３からの注水により補なわれる。上記の動作が
繰り返されることにより、最下段の釜１１−１内の塩水
の濃度は徐々に高濃度になる。そして再下段の釜１１−
１内の塩水濃度が、塩が析出する程の高濃度になった
ら、釜１１−１内の高濃度塩水を回収釜に回収し、蒸気
配管等により更に水分を加熱蒸発させて塩を析出させた
後、これを遠心脱水機などに移して更に水分や苦塩等を
除去する。At this time, in order to prevent the heat medium pipe 12 from being damaged due to a temperature difference between the inside and outside, the valve 1 of the heat medium pipe 12 is
2a and 12b are opened slightly, and the heating medium tube 12 is gradually heated by a small amount of heating medium. Then, when the heat medium pipe 12 is heated to a predetermined temperature, the opening degree of the valves 12a and 12b is increased, and the high-temperature heat medium flows into the heat medium pipe 12 while adjusting the flow rate, thereby heating the salt water. Then, the high-temperature heat medium flowing in the heat medium pipe 12 causes the kettles 11-1 to 11-
The salt water in 4 is heated through the tube wall of the heat medium tube 12 and starts to boil. Then, with the evaporation of water due to boiling, the water level of the salt water in each of the kettles 11-1 to 11-4 gradually decreases. At this time, since the salt water in the lowermost pot 11-1 is heated at the highest temperature, the water level in the pot 11-1 drops most rapidly. Then, when the water level in the lowermost pot 11-1 drops from the predetermined water level, first, the main float 7 of the water level adjusting device 1-1 receives the buoyancy of the sub-float 8 provided in the water injection pipe 6. The lower end opening 6a of the water injection pipe 6 is opened. Thereby, the upper stage, that is, the second stage shuttle 11 is placed in the lower stage shuttle 11-1.
-2, water is injected through the water injection pipe 6. At this time, since the salt water poured into the lowermost pot 11-1 has already been heated to a high temperature (boiling temperature), the saltwater temperature in the lowermost pot does not decrease even by the above-mentioned water injection. Thereafter, each time the water level in the lowermost pot 11-1 drops below the predetermined water level, water injection from the second lower pot 11-2 is repeated. Further, the lowering of the water level of the second-stage kettle 11-2 from the bottom is further compensated for by water injection from the upper-stage kettle 11-3. By repeating the above operation, the concentration of the salt water in the lowermost pot 11-1 gradually increases. And the lower kettle 11-
When the concentration of the salt water in 1 becomes high enough to precipitate the salt, the highly concentrated salt water in the pot 11-1 is collected in a collecting pot, and the water is further heated and evaporated by a steam pipe or the like to precipitate the salt. After that, this is transferred to a centrifugal dehydrator or the like to further remove water, bitter salt and the like.
【００１３】以上のように、この実施の形態の製塩装置
によれば、鉛直方向に重畳して配置した複数の釜１１−
１〜１１−４を使用し、各釜１１−１〜１１−４内に設
けた熱媒管１２内を流れる高温熱媒により全ての段の釜
１１−１〜１１−４内の塩水を同時に沸騰させつつ、最
下段の釜１１−１の水位が所定水位から低下する毎にそ
の一段上の釜１１−２から注水し、その他の段の釜の水
位低下分も順次その上の段の釜からの注水により補うこ
とにより、最下段の釜１１−１内にて常に沸騰温度で塩
水を煮つめつつ、しかも順次上の段の釜１１−２〜１１
−４からの塩分を集積させて塩水を高濃度化することが
できるので、広い設置スペースを必要とせずに、効率良
く塩水を煮つめて塩を採取することができる。また、順
次下の段の釜へ塩水を移すための手段として本発明に係
る水位調整装置１−１〜１−３を用いたことにより、下
の段の釜内の水位を検知するセンサや弁体を作動させる
ためのモータ、電磁ソレノイドなど電気系統を何ら用い
ることなく、上の段の釜から下の段の釜へ塩水を自動的
に注水できる。しかも、下の段の釜内の塩水の水位が所
定の水位から低下したとき、水位調整装置１−１〜１−
３のサブフロート８の浮力をメインフロート７に作用さ
せつつ、メインフロート７を下降させて注水管６の下端
開口部６ａを開放するように構成したので、注水の際に
注水管６を通して塩水が急激に流れ落ちるのを防止でき
る。その結果、サブフロート８及びメインフロート７の
急激な落下、塩水の落下などにより大きな衝撃音が生じ
たり、サブフロート８やメインフロート７などが損傷し
たりするのを防止できる。As described above, according to the salt-making apparatus of this embodiment, the plurality of kettles 11-
1 to 11-4, the salt water in all the stages 11-1 to 11-4 is simultaneously heated by a high-temperature heat medium flowing through the heat medium pipe 12 provided in each of the stages 11-1 to 11-4. While boiling, each time the water level of the lowermost pot 11-1 drops from the predetermined water level, water is poured from the upper pot 11-2, and the lowering of the water level of the other pots is successively performed on the upper pots. Of water, the salt water is constantly boiled at the boiling temperature in the lowermost pot 11-1, and the upper pots 11-2 to 11-11 are successively boiled.
Since the salt water from -4 can be accumulated to increase the concentration of the salt water, the salt water can be efficiently boiled and the salt can be collected without requiring a large installation space. Also, by using the water level adjusting devices 1-1 to 1-3 according to the present invention as means for sequentially transferring the salt water to the lower stage kettle, a sensor or valve for detecting the water level in the lower stage kettle is provided. The salt water can be automatically injected from the upper pot to the lower pot without using any electric system such as a motor for operating the body and an electromagnetic solenoid. Moreover, when the water level of the salt water in the lower stage falls below a predetermined water level, the water level adjusting devices 1-1 to 1-1-
Since the main float 7 is lowered to open the lower end opening 6a of the water injection pipe 6 while applying the buoyancy of the sub-float 8 to the main float 7, the salt water flows through the water injection pipe 6 at the time of water injection. It can be prevented from flowing down suddenly. As a result, it is possible to prevent the sub-float 8 and the main float 7 from suddenly dropping, and a loud impact sound due to a drop of salt water, and the sub-float 8 and the main float 7 from being damaged.
【００１４】また、釜１１−１〜１１−４内の塩水は沸
騰温度に達しているため、注水管６を通して塩水が急激
に流れ落ちると、高温の塩水が周囲へ飛散して作業者に
危険を及ぼす可能性があるが、本発明の水位調整装置１
−１〜１−３を用いたのでこのような危険も防止でき
る。また、注水管６の内部に弁座を設けず、注水管６の
下端部を弁座として機能させ、メインフロート７自体を
弁体として機能させ、しかもサブフロート８の上下動に
より注水管６内が攪拌されるようにしたため、析出した
塩などによる注水管６の詰まりが完全に防止される。な
お、上記実施の形態では、４段構成の釜を備えた製塩装
置を例にとり説明したが、釜の設置段数は熱媒管１２内
に流す熱媒の温度、流量等を増大することにより５段以
上に増やすことも可能である。また、用地面積や熱媒加
熱装置１３の能力等の制約がさらに大きければ、３段以
下の構成とすることも可能である。また、上記実施の形
態では、海から汲み上げた海水をそのまま最上段の釜１
１−４に注水するようにしているが、海水を予め加熱し
て注水すれば、海水注水時の釜１１−４内の塩水の温度
低下を抑えて、より効率良く塩水の加熱を行うことがで
きる。また、上記の例では、矩形状の釜を使用している
が、その他の形状例えば有底筒体状の釜（槽体）を使用
してもよい。Further, since the salt water in the kettles 11-1 to 11-4 has reached the boiling temperature, if the salt water flows down rapidly through the water injection pipe 6, the high-temperature salt water scatters around and poses a danger to the operator. Water level adjustment device 1 of the present invention
Since -1 to 1-3 are used, such danger can be prevented. In addition, no valve seat is provided inside the water injection pipe 6, the lower end of the water injection pipe 6 functions as a valve seat, the main float 7 itself functions as a valve body, and the sub-float 8 moves up and down. Is agitated, so that clogging of the water injection pipe 6 due to precipitated salt or the like is completely prevented. In the above-described embodiment, a description has been given of an example of a salt-making apparatus having a four-stage kettle, but the number of stages of the kettle can be reduced by increasing the temperature, flow rate, and the like of the heat medium flowing in the heat medium pipe 12. It is also possible to increase more than steps. In addition, if the restrictions such as the land area and the capacity of the heating medium heating device 13 are even greater, a configuration having three stages or less can be used. Further, in the above embodiment, the seawater pumped from the sea is used as it is in the uppermost kettle 1.
Although water is injected into 1-4, if seawater is heated and injected in advance, it is possible to suppress the decrease in the temperature of saltwater in the pot 11-4 at the time of injecting seawater, and to heat saltwater more efficiently. it can. In the above example, a rectangular kettle is used, but other shapes such as a bottomed cylindrical kettle (tank body) may be used.
【００１５】また、たとえば図５に示すように、熱媒管
１２と釜とを一体化した構造としてもよい。また、釜内
に熱媒管１２を上下に複数段設けることにより、釜内の
塩水を熱媒管１２内を流れる高温熱媒によって更に効率
良く加熱できる。また、上記製塩装置は再生加工塩の製
造装置としても使用することができる。その場合、例え
ば最上段の釜に原塩（岩塩等自然塩）を入れ、適度な濃
度になるように海水と混合して、その混合塩水を全ての
段の釜内に所定水位まで注入した後、上記と同様に熱媒
管からの放熱により全ての段の釜内の塩水を同時に沸騰
させつつ、最下段の釜の水位が所定量だけ低下する毎に
その一段上の釜から注水し、最上段以外のその他の段の
釜の水位低下分についても順次その上の段の釜からの注
水により補うことにより、最下段の釜内にて常に沸騰温
度で塩水を煮つめる。この製法によれば、海水に含有す
る諸ミネラル分を原塩へ添加させ、海水より採取される
自然海塩に似た高品質の再生加工塩を効率良く生産する
ことが可能となる。Further, as shown in FIG. 5, for example, the structure may be such that the heating medium tube 12 and the shuttle are integrated. In addition, by providing the heating medium pipes 12 in a plurality of stages in the kettle, the salt water in the kettle can be more efficiently heated by the high-temperature heating medium flowing in the heating medium pipes 12. Further, the above-mentioned salt producing apparatus can also be used as an apparatus for producing regenerated salt. In such a case, for example, raw salt (natural salt such as rock salt) is put into the uppermost pot, mixed with seawater so as to have an appropriate concentration, and the mixed salt water is poured into all the pots to a predetermined water level. In the same manner as described above, while the salt water in all the kettles is simultaneously boiled by radiating heat from the heat medium tubes, water is poured from the kettle one level higher every time the water level of the lowermost kettle drops by a predetermined amount. The lowering of the water level of the kettles in the other stages other than the upper stage is compensated for by the water injection from the upper stage, so that the salt water is always boiled at the boiling temperature in the lowermost stage. According to this production method, it becomes possible to add various minerals contained in seawater to raw salt and efficiently produce a high-quality regenerated and processed salt similar to natural sea salt collected from seawater.
【００１６】[0016]
【発明の効果】以上説明したように本発明によれば、上
下方向に重畳して配置された槽体間に設けられ、下の段
の槽体内の水位変化に応じてフロートを昇降させ、下の
段の槽体内の水位が低下したときにこれを補うべく上の
段の槽体から注水する水位調整装置において、注水の際
に急激に水が流れ落ちるのを防止するとともに、装置を
単純化、小型化することができる。As described above, according to the present invention, the float is provided between the tanks which are vertically overlapped with each other, and the float is raised and lowered according to a change in the water level in the lower tank. In the water level adjusting device that injects water from the upper stage tank body to compensate for when the water level in the lower stage tank body drops, in addition to preventing the water from suddenly flowing down at the time of water injection, simplifying the device, The size can be reduced.
【図１】（ａ）、（ｂ）は本発明に係る水位調整装置の
実施の形態の一例を示す概略断面図である。FIGS. 1A and 1B are schematic cross-sectional views showing an example of an embodiment of a water level adjusting device according to the present invention.
【図２】本発明に係る水位調整装置の別の実施の形態を
示す部分断面図である。FIG. 2 is a partial cross-sectional view showing another embodiment of the water level adjusting device according to the present invention.
【図３】本発明に係る水位調整装置の別の実施の形態を
示す部分断面図である。FIG. 3 is a partial cross-sectional view showing another embodiment of the water level adjusting device according to the present invention.
【図４】本発明に係る水位調整装置を備えた製塩装置の
実施の形態の一例を示す概略断面図である。FIG. 4 is a schematic cross-sectional view showing an example of an embodiment of a salt producing apparatus including a water level adjusting device according to the present invention.
【図５】（ａ）〜（ｄ）は製塩装置の釜と熱媒管とを一
体化した形態例を示す部分断面図である。5 (a) to 5 (d) are partial cross-sectional views showing an embodiment in which a kettle and a heat medium pipe of a salt-making apparatus are integrated.
【図６】（ａ）、（ｂ）は従来の水位調整装置の一例を
示す概略断面図である。FIGS. 6A and 6B are schematic sectional views showing an example of a conventional water level adjusting device.
１：水位調整装置 ２：槽体 ３：槽体 ４：水 ５：底部開口部 ６：注水管 ７：メインフロート ８：サブフロート ９：連結棒 ６ａ：下端開口部 １０：パッキン（シール部材） 1: water level adjusting device 2: tank body 3: tank body 4: water 5: bottom opening 6: water injection pipe 7: main float 8: sub float 9: connecting rod 6a: lower end opening 10: packing (seal member)
Claims (3)
設けられ、下の段の槽体内の水位が低下したときにこれ
を補うべく上の段の槽体から注水する水位調整装置であ
って、 上の段の槽体内の水を下の段の槽体内へ導くべく上の段
の槽体の底部開口部に接続された鉛直方向下方に延びる
注水管と、 前記注水管の下方に設けられ下の段の槽体内の水位変動
に伴って上下に移動するメインフロートと、 前記注水管内に設けられたサブフロートと、 前記メインフロートと前記サブフロートとを一体的に昇
降可能に連結した連結部材とを備え、 下の段の槽体内の水位が所定水位まで上昇したとき、前
記メインフロートによって前記注水管の下端開口部を閉
塞し、下の段の槽体内の水位が所定水位から低下したと
き、前記サブフロートの浮力を前記メインフロートに作
用させつつ、前記注水管の下端開口部を開放するように
構成したことを特徴とする水位調整装置。1. A water level adjusting device which is provided between tank bodies superposed in the vertical direction and injects water from an upper tank body to compensate for a decrease in water level in a lower tank body. A vertically extending water pipe connected to a bottom opening of the upper tank body for guiding water in the upper tank body to the lower tank body, and below the water pipe. A main float that moves up and down in accordance with water level fluctuations in the lower tank body, a sub-float provided in the water injection pipe, and the main float and the sub-float are integrally movably connected to each other. When the water level in the lower stage tank body rises to a predetermined water level, the lower end opening of the water injection pipe is closed by the main float, and the water level in the lower stage tank body from the predetermined water level When lowered, the buoyancy of the sub-float While acting to Nfuroto water level adjusting apparatus characterized by being configured so as to open the lower end opening of the water injection tube.
ートの上端部を受け入れてこれと密着係合するように形
成されていることを特徴とする請求項１記載の水位調整
装置。2. The water level adjusting device according to claim 1, wherein a lower end portion of the water injection pipe is formed so as to receive an upper end portion of the main float and closely engage with the upper end portion.
トとの当接部を縁取るようにしてシール部材を設けたこ
とを特徴とする請求項１または２記載の水位調整装置。3. The water level adjusting device according to claim 1, wherein a seal member is provided at a lower end portion of the water pipe so as to border a contact portion with the main float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10278621A JP2000112531A (en) | 1998-09-30 | 1998-09-30 | Device for adjusting water level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10278621A JP2000112531A (en) | 1998-09-30 | 1998-09-30 | Device for adjusting water level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000112531A true JP2000112531A (en) | 2000-04-21 |
Family
ID=17599839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10278621A Pending JP2000112531A (en) | 1998-09-30 | 1998-09-30 | Device for adjusting water level |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000112531A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106144160A (en) * | 2015-04-01 | 2016-11-23 | 刘爱东 | Purified water bucket water circuit breaker |
| JP2018096912A (en) * | 2016-12-15 | 2018-06-21 | 三菱重工業株式会社 | Float member for covering nuclear fuel pool |
| CN108996851A (en) * | 2018-09-13 | 2018-12-14 | 天津市益多利来水产养殖有限公司 | A kind of purifier used for aquiculture |
| CN117740466A (en) * | 2024-02-19 | 2024-03-22 | 国网浙江省电力有限公司宁波供电公司 | Insulating oil liquid taking device with liquid level control function and liquid taking method |
-
1998
- 1998-09-30 JP JP10278621A patent/JP2000112531A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106144160A (en) * | 2015-04-01 | 2016-11-23 | 刘爱东 | Purified water bucket water circuit breaker |
| CN106144160B (en) * | 2015-04-01 | 2019-03-01 | 刘爱东 | Purified water bucket water circuit breaker |
| JP2018096912A (en) * | 2016-12-15 | 2018-06-21 | 三菱重工業株式会社 | Float member for covering nuclear fuel pool |
| CN108996851A (en) * | 2018-09-13 | 2018-12-14 | 天津市益多利来水产养殖有限公司 | A kind of purifier used for aquiculture |
| CN117740466A (en) * | 2024-02-19 | 2024-03-22 | 国网浙江省电力有限公司宁波供电公司 | Insulating oil liquid taking device with liquid level control function and liquid taking method |
| CN117740466B (en) * | 2024-02-19 | 2024-06-11 | 国网浙江省电力有限公司宁波供电公司 | Insulating oil liquid taking device with liquid level control function and liquid taking method |
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