JPS6249444B2 - - Google Patents
Info
- Publication number
- JPS6249444B2 JPS6249444B2 JP2613682A JP2613682A JPS6249444B2 JP S6249444 B2 JPS6249444 B2 JP S6249444B2 JP 2613682 A JP2613682 A JP 2613682A JP 2613682 A JP2613682 A JP 2613682A JP S6249444 B2 JPS6249444 B2 JP S6249444B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- hotwell
- heat medium
- pump
- power generation
- 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
- 238000010248 power generation Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Description
【発明の詳細な説明】
本発明は発電プラントで使用するホツトウエル
タンクの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in hotwell tanks for use in power plants.
従来の発電プラントを第１図により説明する
と、１がフレオン等の有機性熱媒体２を貯えるホ
ツトウエルタンク、３が同ホツトウエルタンク１
内の有機性熱媒体２を管路４を介し汲み出すポン
プ、５が同ポンプ３からの有機性熱媒体２を蒸発
させる熱交換器、６が同熱交換器５から管路１５
を介し送られてきた蒸気により駆動される発電用
タービン、１２が同発電用タービン６からの排気
を凝縮したのち管路１３を介して上記ホツトウエ
ルタンク１に戻すコンデンサで、上記管路１３を
流れる有機性熱媒体２は一般に暖かいので、これ
を貯えるタンク１にはホツトウエルタンクの名称
が付されている。また７が上記管路４に設けたホ
ツトウエルタンク出口弁、８が上記管路４の分岐
管に設けた真空ポンプ、９が同分岐管に設けた真
空ポンプ入口弁、１０が上記ポンプ３の出口側に
設けたポンプ出口弁、１１が上記発電用タービン
６に連結した発電機、１４が上記管路１３に設け
たホツトウエルタンク入口弁で、ポンプ３がホツ
トウエルタンク１の熱媒体２液面よりも高い位置
にある場合には、ポンプ起動前にホツトウエルタ
ンク出口弁７及びポンプ出口弁１０を閉じ、真空
ポンプ入口弁９を開いて、真空ポンプ８を起動す
る。タンク出口弁７とポンプ出口弁１０との間が
所定の真空度になつたら、真空ポンプ入口弁９を
閉じ、ホツトウエルタンク出口弁７を開いて、ホ
ツトウエルタンク１内の熱媒体２の一部をポンプ
出口弁１０までの管路４及びポンプ３に吸引、充
填し、次いでポンプ３を起動し、同ポンプ３が所
定の回転数になつたら、ポンプ出口弁１０及びホ
ツトウエルタンク入口弁１４を開き、熱媒体２を
ホツトウエルタンク１→ポンプ３→熱交換器５→
発電用タービン６→コンデンサ１２→ホツトウエ
ルタンク１に循環させて、発電を行なうようにな
つている。 To explain a conventional power generation plant with reference to Fig. 1, 1 is a hotwell tank that stores an organic heat medium 2 such as Freon, and 3 is a hotwell tank 1.
5 is a heat exchanger that evaporates the organic heat medium 2 from the pump 3, and 6 is a pipe 15 from the heat exchanger 5.
A power generation turbine 12 is driven by the steam sent through the power generation turbine 6, and a condenser which condenses the exhaust gas from the power generation turbine 6 and returns it to the hotwell tank 1 through the conduit 13. Since the flowing organic heat medium 2 is generally warm, the tank 1 that stores it is given the name Hotwell Tank. Further, 7 is a hotwell tank outlet valve provided in the pipe 4, 8 is a vacuum pump provided in a branch pipe of the pipe 4, 9 is a vacuum pump inlet valve provided in the branch pipe, and 10 is a vacuum pump provided in the branch pipe of the pipe 4. A pump outlet valve provided on the outlet side, 11 a generator connected to the power generation turbine 6, 14 a Hotwell tank inlet valve provided in the pipeline 13; If the position is higher than the surface, the hotwell tank outlet valve 7 and the pump outlet valve 10 are closed before starting the pump, the vacuum pump inlet valve 9 is opened, and the vacuum pump 8 is started. When a predetermined degree of vacuum is reached between the tank outlet valve 7 and the pump outlet valve 10, the vacuum pump inlet valve 9 is closed, the Hotwell tank outlet valve 7 is opened, and a part of the heat medium 2 in the Hotwell tank 1 is removed. The pump 3 is suctioned and filled into the pipe line 4 and the pump 3 up to the pump outlet valve 10, then the pump 3 is started, and when the pump 3 reaches a predetermined rotation speed, the pump outlet valve 10 and the Hotwell tank inlet valve 14 are Open and transfer heat medium 2 to Hotwell tank 1 → pump 3 → heat exchanger 5 →
The power is circulated from the power generation turbine 6 to the condenser 12 to the Hotwell tank 1 to generate power.
前記有機性熱媒体２は沸点が低い。逆のいい方
をすれば一定の温度に対する蒸気圧が高いので、
ポンプ３の入口で圧力が下ると、蒸気圧に達して
液が蒸発し、キヤビテーシヨンが発生して熱媒体
の循環能力が急激に減少して、正常な作動が期待
できなくなる。そこでポンプ３の入口を真空にす
る替りにホツトウエルタンク１内を窒素、ヘリウ
ム等のガスで加圧して、熱媒体を送り出す方法が
考えられているが、この方法だと、ガスがコンデ
ンサ等に混入して、伝熱性能を低下させるという
問題があつた。 The organic heat medium 2 has a low boiling point. In other words, the vapor pressure is high for a given temperature, so
When the pressure decreases at the inlet of the pump 3, it reaches vapor pressure and the liquid evaporates, causing cavitation and the ability to circulate the heat medium to rapidly decrease, making it impossible to expect normal operation. Therefore, instead of creating a vacuum at the inlet of the pump 3, a method has been considered in which the inside of the Hotwell tank 1 is pressurized with a gas such as nitrogen or helium to send out the heat medium. There was a problem that the heat transfer performance was deteriorated due to contamination.
本発明は前記の問題点に対処するもので、有機
性熱媒体を貯えるホツトウエルタンクと、同ホツ
トウエルタンクからポンプにより汲み上げられた
有機性熱媒体を蒸発させる熱交換器と、同熱交換
器からの蒸気により駆動される発電用タービン
と、同発電用タービンからの排気を凝縮して上記
ホツトウエルタンクに戻すコンデンサとを具えた
発電用プラントにおいて、上端が閉じるとともに
下端が開口した筒状の断熱材製蒸気発生器本体を
前記ホツトウエルタンク内に同本体の下端と同タ
ンクの底面との間に間隔をおいて設置し、小孔を
同本体の熱媒体液面より上方の部分に設け、加熱
装置を同本体内の熱媒体液中に設置したことを特
徴とするホツトウエルタンクに係り、その目的と
する処は、ポンプがホツトウエルタンク内の熱媒
体液面よりも高い位置にある場合に真空ポンプや
加圧用ガスを使用しなくても有機性熱媒体をホツ
トウエルタンクから充分に汲み上げることができ
る改良された発電用プラントのホツトウエルタン
クを供する点にある。 The present invention addresses the above-mentioned problems, and includes a hot-well tank for storing an organic heat medium, a heat exchanger for evaporating the organic heat medium pumped from the hot-well tank by a pump, and a heat exchanger for evaporating the organic heat medium pumped from the hot-well tank by a pump. In a power generation plant equipped with a power generation turbine driven by steam from a power generation turbine and a condenser that condenses exhaust gas from the power generation turbine and returns it to the Hotwell tank, a cylindrical tube with a closed upper end and an open lower end is used. A steam generator body made of a heat insulating material is installed in the Hotwell tank with a space between the lower end of the body and the bottom of the tank, and a small hole is provided in a portion of the body above the heat medium liquid level. , relates to a hotwell tank characterized in that a heating device is installed in the heat medium liquid in the hotwell tank, and its purpose is to place the pump at a position higher than the heat medium liquid level in the hotwell tank. An object of the present invention is to provide an improved hot-well tank for a power generation plant that can sufficiently pump up an organic heat medium from the hot-well tank without using a vacuum pump or pressurizing gas.
次に本発明の発電用プラントのホツトウエルタ
ンクを第２，３図に示す一実施例により説明する
と、１がホツトウエルタンク、２が有機性熱媒
体、２０が断熱材製の蒸気発生器本体で、筒状を
なし、上端が閉じられるとともに下端が開口して
いる。なお２３は同蒸気発生器本体２０の断熱材
製側壁，２５は同蒸気発生器本体２０の上端を閉
じる断熱材製端板である。同蒸気発生器本体２０
は上記ホツトウエルタンク１内に、蒸気発生器本
体２０の下端とホツトウエルタンク１の底面との
間に間隔をおいて設置されている。また２１が同
蒸気発生器本体２０内の熱媒体液中に設置した加
熱装置で、図ではコイル状のパイプ内に熱水を通
す加熱装置を示したが、電気ヒータ等他の加熱装
置に替えても差支えない。また２４が上記蒸気発
生器本体２０の側壁２３に設けた小孔で、同小孔
２４は熱媒体２の液面より上方に設けられてい
る。１４はホツトウエルタンク入口弁である。 Next, a hotwell tank for a power generation plant according to the present invention will be explained with reference to an embodiment shown in FIGS. 2 and 3. 1 is a hotwell tank, 2 is an organic heat medium, and 20 is a steam generator body made of a heat insulating material. It has a cylindrical shape, with the upper end closed and the lower end open. Note that 23 is a side wall made of a heat insulating material of the steam generator main body 20, and 25 is an end plate made of a heat insulating material that closes the upper end of the steam generator main body 20. The steam generator main body 20
is installed in the Hotwell tank 1 with a space between the lower end of the steam generator main body 20 and the bottom surface of the Hotwell tank 1. In addition, 21 is a heating device installed in the heat medium liquid in the steam generator main body 20. Although the figure shows a heating device that passes hot water through a coiled pipe, it can be replaced with another heating device such as an electric heater. There is no problem. Further, 24 is a small hole provided in the side wall 23 of the steam generator main body 20, and the small hole 24 is provided above the liquid level of the heat medium 2. 14 is a Hotwell tank inlet valve.
次に前記ホツトウエルタンク１の作用を説明す
る。熱媒体循環ポンプの起動前にホツトウエルタ
ンク入口弁１４を閉じ、加熱装置２１に熱水を通
して、蒸気発生器本体２０内の熱媒体２１を加熱
する。蒸気発生器２０のアレツジ２２の圧力が上
昇し、小孔２４を介してホツトウエルタンク１内
の圧力も上昇して、同クンク１内の圧力が所定圧
になつたら、ポンプを起動し、加熱装置２１への
熱水の供給を停止して、ホツトウエルタンク入口
弁１４を開く。このように本発明のホツトウエル
タンクでは、蒸気発生器本体２０のアレツジ２２
の圧力を上昇させ、さらに小孔２４を介しホツト
ウエルタンク１内の圧力を高めるが、このとき、
蒸気発生器本体２０内外の熱媒体２間の熱の授受
は、断熱材製側壁２３により阻止され、蒸気発生
器本体２０内の熱媒体２と外気との熱の授受は、
断熱材製側壁２３及び端板２５により阻止され
る。 Next, the operation of the Hotwell tank 1 will be explained. Before starting the heat medium circulation pump, the hotwell tank inlet valve 14 is closed, hot water is passed through the heating device 21, and the heat medium 21 in the steam generator main body 20 is heated. The pressure in the utensil 22 of the steam generator 20 increases, and the pressure in the hotwell tank 1 also increases through the small hole 24. When the pressure in the hotwell tank 1 reaches a predetermined pressure, the pump is started and the heating is started. The supply of hot water to the device 21 is stopped and the hotwell tank inlet valve 14 is opened. In this way, in the Hotwell tank of the present invention, the utensil 22 of the steam generator main body 20
The pressure inside the Hotwell tank 1 is further increased through the small hole 24, but at this time,
Transfer of heat between the heat medium 2 inside and outside the steam generator main body 20 is prevented by the side wall 23 made of a heat insulating material, and transfer of heat between the heat medium 2 inside the steam generator main body 20 and the outside air is
This is blocked by side walls 23 and end plates 25 made of insulating material.
本発明のホツトウエルタンクは前記のように構
成されており、ポンプがホツトウエルタンクの熱
媒体の液面よりも位置にある場合に真空ポンプや
加圧用ガスを使用しなくても有機性熱媒体を充分
に汲み上げることができるものである。 The Hotwell tank of the present invention is configured as described above, and when the pump is located above the liquid level of the heating medium in the Hotwell tank, the organic heating medium can be used without using a vacuum pump or pressurizing gas. It is possible to pump up enough water.
以上本発明を実施例について説明したが、勿論
本発明はこのような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .
第１図は従来の発電用プラントを示す系統図、
第２図は本発明に係る発電用プラントのホツトウ
エルタンクの一実施例を示す縦断側面図、第３図
は第２図矢視―線に沿う横断平面図である。
１…ホツトウエルタンク、２…有機性熱媒体、
３…ポンプ、５…熱交換器、６…発電用タービ
ン、１２…コンデンサ、２０…蒸気発生器本体、
２１…加熱装置、２４…小孔。
Figure 1 is a system diagram showing a conventional power generation plant.
FIG. 2 is a longitudinal sectional side view showing an embodiment of a hotwell tank of a power generation plant according to the present invention, and FIG. 3 is a lateral plan view taken along the line indicated by the arrow in FIG. 2. 1...Hotwell tank, 2...Organic heat medium,
3...Pump, 5...Heat exchanger, 6...Power generation turbine, 12...Condenser, 20...Steam generator main body,
21...Heating device, 24...Small hole.
Claims (1)
と、同ホツトウエルタンクからポンプにより汲み
上げられた有機性熱媒体を蒸発させる熱交換器
と、同熱交換器からの蒸気により駆動される発電
用タービンと、同発電用タービンからの排気を凝
縮して上記ホツトウエルタンクに戻すコンデンサ
とを具えた発電用プラントにおいて、上端が閉じ
るとともに下端が開口した筒状の断熱材製蒸気発
生器本体を前記ホツトウエルタンク内に同本体の
下端と同タンクの底面との間に間隔をおいて設置
し、小孔を同本体の熱媒体液面より上方の部分に
設け、加熱装置を同本体内の熱媒体液中に設置し
たことを特徴とするホツトウエルタンク。1. A Hotwell tank for storing an organic heat medium, a heat exchanger for evaporating the organic heat medium pumped up from the Hotwell tank by a pump, and a power generation turbine driven by steam from the heat exchanger, In a power generation plant equipped with a condenser that condenses exhaust gas from the power generation turbine and returns it to the Hotwell tank, a cylindrical steam generator body made of heat insulating material with a closed upper end and an open lower end is installed in the Hotwell tank. A heating device is placed in the heat medium liquid inside the main body with a space between the lower end of the main body and the bottom of the tank, and a small hole is provided in the part above the heat medium liquid level of the main body. The Hotstowell tank is characterized by being installed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2613682A JPS58144613A (en) | 1982-02-22 | 1982-02-22 | Hot well tank in power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2613682A JPS58144613A (en) | 1982-02-22 | 1982-02-22 | Hot well tank in power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58144613A JPS58144613A (en) | 1983-08-29 |
| JPS6249444B2 true JPS6249444B2 (en) | 1987-10-20 |
Family
ID=12185132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2613682A Granted JPS58144613A (en) | 1982-02-22 | 1982-02-22 | Hot well tank in power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58144613A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009053390B3 (en) * | 2009-11-14 | 2011-06-01 | Orcan Energy Gmbh | Thermodynamic machine and method for its operation |
| JP6187852B2 (en) | 2012-12-28 | 2017-08-30 | 三菱重工業株式会社 | Power generation system maintenance method |
| FR3020090B1 (en) * | 2014-04-16 | 2019-04-12 | IFP Energies Nouvelles | DEVICE FOR CONTROLLING A CLOSED CIRCUIT OPERATING ACCORDING TO A RANKINE CYCLE AND METHOD USING SUCH A DEVICE |
-
1982
- 1982-02-22 JP JP2613682A patent/JPS58144613A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144613A (en) | 1983-08-29 |
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