JPH0960320A - Water supply device - Google Patents
Water supply deviceInfo
- Publication number
- JPH0960320A JPH0960320A JP7208695A JP20869595A JPH0960320A JP H0960320 A JPH0960320 A JP H0960320A JP 7208695 A JP7208695 A JP 7208695A JP 20869595 A JP20869595 A JP 20869595A JP H0960320 A JPH0960320 A JP H0960320A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cooling tower
- elevated
- closed cooling
- reverse osmosis
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
(57)【要約】
【課題】浸透圧現象を利用して安価で安定度の高い連続
的に希釈可能な給水装置を提供すること。
【解決手段】給水装置は、密閉式冷却塔の散水を引き出
す第１配管と、密閉式冷却塔より高所に設置されている
高架水槽の水を引き出す第２配管とを逆浸透膜装置を介
して接続しているので、冷却塔散水と高架水槽水の濃度
差から生じる浸透圧により逆浸透膜には散水を希釈する
一定の浸透圧力が働く。また同時に水位差による静圧が
生じるため、適性な希釈速度を得ることができるので、
密閉式冷却塔の散水を高架水槽水で連続的かつ安定した
希釈ができる。
(57) [PROBLEMS] To provide an inexpensive and highly stable continuous diluting water supply device utilizing an osmotic pressure phenomenon. SOLUTION: The water supply device has a first pipe for drawing water from a closed cooling tower and a second pipe for drawing water from an elevated water tank installed higher than the closed cooling tower via a reverse osmosis membrane device. Since they are connected together, the reverse osmosis membrane exerts a certain osmotic pressure that dilutes the water spray due to the osmotic pressure generated by the difference in the water concentrations of the cooling tower water and the elevated water in the aquarium. At the same time, since static pressure is generated due to the difference in water level, an appropriate dilution rate can be obtained,
It is possible to continuously and stably dilute the water of the closed cooling tower with the water in the elevated water tank.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は密閉式冷却塔の散水
を希釈するための給水装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for diluting sprinkling water in a closed cooling tower.
【０００２】[0002]
【従来の技術】密閉式冷却塔の散水は蒸発により濃度が
高くなるので、放っておくと汚染が進み、空気中に汚染
水が散布される危険性がある。このため散水の希釈技術
は衛生面からも非常に重要であり、従来より冷却塔散水
の導電率を導電率計測器により計測し、この計測値によ
りボール弁等の電動弁を制御して希釈水を供給する給水
方式がとられており、導電率計，コントローラ，電動弁
等の制御機器および制御電源が必要であった。2. Description of the Related Art Since the concentration of water sprinkled in a closed cooling tower increases due to evaporation, if left unattended, there is a risk that the water will be contaminated and that the contaminated water will be scattered in the air. For this reason, the technique of diluting sprinkling water is very important from the viewpoint of hygiene.Conventionally, the conductivity of the cooling tower sprinkling water was measured by a conductivity meter, and the measured value was used to control an electric valve such as a ball valve. A water supply system for supplying water was used, and a control device such as a conductivity meter, a controller, an electric valve, and a control power source were required.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、導電率
計，コントローラ，電動弁等の制御装置および制御電源
は装置および保守に比較的コストがかかっていたので、
これらの制御装置および制御電源を用いないで希釈可能
な給水装置の開発が求められていた。However, the control device and the control power source such as the conductivity meter, the controller, and the motor-operated valve are relatively costly for the device and the maintenance.
There has been a demand for the development of a water supply device that can be diluted without using these control devices and control power sources.
【０００４】本発明は上記事情に鑑みてなされたもの
で、請求項１の目的は従来技術では考慮されていなかっ
た浸透圧現象を利用することにより安価で連続的に希釈
可能な給水装置を提供することにある。また請求項２の
目的は散水量を一定に保って安定度の高い給水装置を提
供することにある。The present invention has been made in view of the above circumstances, and an object of claim 1 is to provide an inexpensive and continuously dilutable water supply device by utilizing an osmotic pressure phenomenon which has not been considered in the prior art. To do. Another object of the present invention is to provide a highly stable water supply device which keeps the amount of water sprayed constant.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１のの給水装置は、密閉式冷却塔
と、前記密閉式冷却塔の散水を引き出す第１配管と、前
記密閉式冷却塔より高所に設置されている高架水槽と、
前記高架水槽の水を引き出す第２配管と、前記第１配管
と前記第２配管とを逆浸透膜装置を介して接続したこと
を特徴とするものである。In order to achieve the above object, a water supply device according to claim 1 of the present invention is a closed cooling tower, a first pipe for drawing water from the closed cooling tower, and An elevated water tank installed higher than the closed cooling tower,
A second pipe for drawing out water from the elevated water tank, the first pipe and the second pipe are connected via a reverse osmosis membrane device.
【０００６】本発明の請求項２は、請求項１記載の給水
装置において、前記密閉式冷却塔には散水量を一定にす
るオーバーブロー機構を備えていることを特徴とするも
のである。A second aspect of the present invention is characterized in that, in the water supply apparatus according to the first aspect, the closed cooling tower is provided with an overblow mechanism for making a spray amount constant.
【０００７】まず、本発明の原理について説明する。ビ
ル設備の給水装置として多く用いられている高架水槽の
水と、密閉式冷却塔の散水とを逆浸透膜を介して常時接
触させておくと、濃度の高くなった密閉式冷却塔の散水
は高架水槽の水で希釈するような浸透圧が働く。本発明
はこの現象を利用するものである。First, the principle of the present invention will be described. If water in an elevated water tank, which is often used as a water supply device for building equipment, and sprinkling water in a closed cooling tower are kept in constant contact with each other through a reverse osmosis membrane, sprinkling water in a closed cooling tower with a high concentration The osmotic pressure acts as if it were diluted with the water in the elevated tank. The present invention utilizes this phenomenon.
【０００８】ここで、浸透圧力は、冷却塔散水と高架水
槽水の温度差から発生する浸透圧力と、冷却塔散水と高
架水槽水の水位差から発生する圧力（静圧）の和とな
る。 浸透圧力＝水位差による圧力＋濃度差による圧力・・・（１）Here, the osmotic pressure is the sum of the osmotic pressure generated due to the temperature difference between the cooling tower sprinkling water and the elevated water tank water and the pressure (static pressure) generated due to the water level difference between the cooling tower sprinkling water and the elevated water tank water. Osmotic pressure = pressure due to water level difference + pressure due to concentration difference (1)
【０００９】また、希釈速度は逆浸透膜の面積に比例す
る。 希釈速度（単位時間あたりの浸透水量） ＝逆浸透膜面積×逆浸透膜により定まる定数・・・（２）The dilution rate is proportional to the area of the reverse osmosis membrane. Dilution rate (amount of permeated water per unit time) = reverse osmosis membrane area x constant determined by the reverse osmosis membrane (2)
【００１０】上記（１）および（２）式の特性から冷却
塔散水を希釈するにあたり、最適な希釈速度となるよう
に冷却塔散水と高架水槽水の水位差を調整する。冷却塔
側には希釈された散水を一定量保つためオーバーフロー
機構を設ける。When diluting the cooling tower sprinkler from the characteristics of the above equations (1) and (2), the water level difference between the cooling tower sprinkler and the elevated water in the elevated water tank is adjusted so that the dilution rate becomes optimum. An overflow mechanism is installed on the cooling tower side to maintain a fixed amount of diluted water spray.
【００１１】冷却塔散水と高架水槽水の濃度差から生じ
る浸透圧により、逆浸透膜には散水を希釈する一定の浸
透圧力が働き、また同時に水位差による静圧が生じるた
め、両者から適性な希釈速度を得ることができるので、
従来技術のような電気，電子，機械，人力等を使用しな
くて、かつ安定した連続的な希釈が可能となる。Due to the osmotic pressure generated by the difference in water concentration between the cooling tower sprinkling water and the elevated water in the elevated water tank, a constant osmotic pressure for diluting the sprinkling water acts on the reverse osmosis membrane, and at the same time, a static pressure due to the water level difference is generated. Since you can get the dilution rate,
It is possible to perform stable and continuous dilution without using electricity, electronics, machinery, human power and the like unlike the conventional technique.
【００１２】また、本発明の給水装置は、冷却塔散水と
高架水槽水の水位差を調整し、散水を希釈する方向への
静圧を高くとることにより、使用する逆浸透膜の面積を
小さくとることができ、さらに低コスト化が図れる。ま
た常に高架水槽側から冷却塔散水側へ流れているため散
水の減水対策も図れる。Further, the water supply apparatus of the present invention adjusts the water level difference between the cooling tower sprinkling water and the elevated water tank water, and increases the static pressure in the diluting direction of the sprinkling water to reduce the area of the reverse osmosis membrane to be used. Therefore, the cost can be further reduced. In addition, since it always flows from the elevated water tank side to the cooling tower sprinkling side, it is possible to take measures to reduce sprinkling water.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態を図を
参照して説明する。図１は本発明の実施例である給水装
置（請求項１及び請求項２対応）の構成図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a water supply device (corresponding to claim 1 and claim 2) that is an embodiment of the present invention.
【００１４】同図において、１は一般的な密閉式冷却塔
であり、密閉式冷却塔１には散水３の一部を引き出す配
管２と、散水量を一定に保つためのオーバーブロー機構
８を設けている。４は高架水槽であり、高架水槽４の適
所にその水６の一部を引き出す配管５を設けている。配
管２と配管５とは逆浸透膜装置７を介して接触してい
る。また、高架水槽４は密閉式冷却塔１よりも高所に設
置されており、９は高架水槽と冷却塔散水との水位差を
示す。In the figure, reference numeral 1 is a general closed cooling tower, and a closed cooling tower 1 is provided with a pipe 2 for drawing a part of the water spray 3 and an overblow mechanism 8 for keeping the water spray amount constant. It is provided. Reference numeral 4 denotes an elevated water tank, and a pipe 5 for drawing a part of the water 6 is provided at an appropriate position of the elevated water tank 4. The pipe 2 and the pipe 5 are in contact with each other via the reverse osmosis membrane device 7. Further, the elevated water tank 4 is installed at a higher place than the closed cooling tower 1, and 9 indicates a water level difference between the elevated water tank and the cooling tower sprinkling.
【００１５】次に、本実施例の作用について説明する。
散水３は空気と接触すると蒸発や汚染などにより濃度が
高くなるが、高架水槽水６は散水３よりも濃度が低く常
に一定濃度が保たれているため、逆浸透膜装置７では散
水３の濃度に応じた浸透圧が常に働く。また、水位差９
により逆浸透膜装置７には静圧がかかっているため、実
際に逆浸透膜にかかる浸透圧力は以下のようになる。す
なわち、 浸透圧力＝濃度差による浸透圧＋水位差による静圧Next, the operation of this embodiment will be described.
When the sprinkling water 3 comes into contact with air, the concentration of the sprinkling water 3 becomes high due to evaporation or pollution. However, since the elevated water tank water 6 has a lower concentration than the sprinkling water 3 and is always kept at a constant concentration, the reverse osmosis membrane device 7 has a concentration of the sprinkling water 3. The osmotic pressure according to is always working. Also, the water level difference is 9
As a result, static pressure is applied to the reverse osmosis membrane device 7, so that the osmotic pressure actually applied to the reverse osmosis membrane is as follows. That is, osmotic pressure = osmotic pressure due to concentration difference + static pressure due to water level difference
【００１６】ここで、高架水槽水位−冷却塔散水水位＝
Ｌ，静圧をＰ（散水を希釈する方向へ働く圧力を正）と
すると下記の如くなる。 Ｌ＞０のときＰ＞０ Ｌ＜０のときＰ＜０Here, elevated water tank water level-cooling tower sprinkling water level =
When L and the static pressure are P (the pressure acting in the direction of diluting the water spray is positive), the following is obtained. When L> 0 P> 0 When L <0 P <0
【００１７】また、浸透水量は逆浸透膜面積に比例し、
使用する逆浸透膜により濃度差により働く浸透圧の大き
さが決まってくる。濃度差による浸透圧をｐとすると、
冷却水を希釈するための浸透圧力Ｑは、 Ｑ＝Ｐ＋ｐ となるので、この値が適正値となるよう水位差および逆
浸透膜を決定する。また、密閉式冷却塔１側には、決定
した散水水位にオーバーブロー機構８を設け、希釈され
た散水を一定量に保ち、安定した散水ができるようにし
ている。The amount of osmotic water is proportional to the area of the reverse osmosis membrane,
Depending on the reverse osmosis membrane used, the magnitude of the osmotic pressure that works depends on the concentration difference. If the osmotic pressure due to the concentration difference is p,
Since the osmotic pressure Q for diluting the cooling water is Q = P + p, the water level difference and the reverse osmosis membrane are determined so that this value becomes an appropriate value. Further, on the side of the closed cooling tower 1, an overblow mechanism 8 is provided at the determined water spray level to keep the diluted water spray at a constant amount and to ensure stable water spray.
【００１８】上記したように、本実施例によると、従来
技術の如き電気，電子，機械などによる制御機器や人力
等を一切使わず、単に物理現象を利用するのみであるか
ら冷却水散水の希釈を安定して行うことができる。ま
た、冷却塔散水と高架水槽水の水位差を調整し、散水を
希釈する方向への静圧を高くとることにより使用する逆
浸透膜の面積を小さくとることができ、低コスト化が図
れる。さらに、常に高架水槽側から冷却塔散水側へ流れ
ているため散水の減水対策も図れる。As described above, according to the present embodiment, no control equipment such as electric, electronic, mechanical, and human power as in the prior art is used at all, and only a physical phenomenon is used. Therefore, the cooling water is diluted with water. Can be done stably. In addition, by adjusting the water level difference between the cooling tower sprinkling water and the elevated water tank water and increasing the static pressure in the diluting direction of the sprinkling water, the area of the reverse osmosis membrane to be used can be made small and the cost can be reduced. Furthermore, since the water always flows from the elevated water tank side to the cooling tower sprinkling side, water sprinkling can be reduced.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によると、
浸透圧による希釈効果と、冷却塔散水と高架水槽水の水
位差から得られる静圧を利用しているので、常に安定し
た連続的な希釈が可能となる。また、冷却塔散水と高架
水槽水の水位差を調整し、散水を希釈する方向への静圧
を高くとることにより、使用する逆浸透膜の面積を小さ
くすることができ、低コスト化が図れる。さらに常に高
架水槽側から冷却塔散水側へ流れているため散水の減水
対策も図れる等の優れた効果を奏する。As described above, according to the present invention,
Since the dilution effect due to the osmotic pressure and the static pressure obtained from the water level difference between the cooling tower sprinkling and the elevated aquarium water are used, stable and continuous dilution is always possible. Also, by adjusting the water level difference between the cooling tower sprinkling water and the elevated water tank, and taking a high static pressure in the direction of diluting the sprinkling water, the area of the reverse osmosis membrane to be used can be made smaller and the cost can be reduced. . Furthermore, since it always flows from the elevated water tank side to the cooling tower sprinkling side, it has excellent effects such as measures for reducing sprinkling water.
【図１】本発明の一実施例の構成図。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】図１のＡ部分の拡大図。FIG. 2 is an enlarged view of a portion A in FIG.
１…密閉式冷却塔、２…散水引出し配管、３…散水、４
…高架水槽、５…高架水槽水引出し配管、６…高架水槽
水、７…逆浸透膜、８…オーバーブロー機構、９…水位
差。1 ... Closed cooling tower, 2 ... Sprinkler withdrawal piping, 3 ... Sprinkler, 4
... Elevated water tank, 5 ... Elevated water tank water drawing pipe, 6 ... Elevated water tank water, 7 ... Reverse osmosis membrane, 8 ... Overblow mechanism, 9 ... Water level difference.
Claims (2)
水を引き出す第１配管と、前記密閉式冷却塔より高所に
設置されている高架水槽と、前記高架水槽の水を引き出
す第２配管と、前記第１配管と前記第２配管とを逆浸透
膜装置を介して接続したことを特徴とする給水装置。1. A closed cooling tower, a first pipe for drawing water from the closed cooling tower, an elevated water tank installed higher than the closed cooling tower, and water for drawing water from the elevated water tank. A water supply device, characterized in that two pipes, the first pipe and the second pipe are connected via a reverse osmosis membrane device.
密閉式冷却塔には散水量を一定にするオーバーブロー機
構を備えていることを特徴とする給水装置。2. The water supply apparatus according to claim 1, wherein the closed cooling tower is provided with an overblow mechanism for making the amount of water sprayed constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7208695A JPH0960320A (en) | 1995-08-16 | 1995-08-16 | Water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7208695A JPH0960320A (en) | 1995-08-16 | 1995-08-16 | Water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0960320A true JPH0960320A (en) | 1997-03-04 |
Family
ID=16560550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7208695A Pending JPH0960320A (en) | 1995-08-16 | 1995-08-16 | Water supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0960320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005120688A1 (en) * | 2004-06-11 | 2005-12-22 | University Of Surrey | Cooling apparatus |
-
1995
- 1995-08-16 JP JP7208695A patent/JPH0960320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005120688A1 (en) * | 2004-06-11 | 2005-12-22 | University Of Surrey | Cooling apparatus |
| CN100490950C (en) | 2004-06-11 | 2009-05-27 | 萨里水溶剂科技有限公司 | Cooling apparatus |
| US7823396B2 (en) | 2004-06-11 | 2010-11-02 | Surrey Aquatechnology Limited | Cooling apparatus |
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