JPH0125973B2 - - Google Patents
Info
- Publication number
- JPH0125973B2 JPH0125973B2 JP59162187A JP16218784A JPH0125973B2 JP H0125973 B2 JPH0125973 B2 JP H0125973B2 JP 59162187 A JP59162187 A JP 59162187A JP 16218784 A JP16218784 A JP 16218784A JP H0125973 B2 JPH0125973 B2 JP H0125973B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- geothermal water
- temperature
- mixing tank
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は地熱水利用の熱水造成設備に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to hot water creation equipment that utilizes geothermal water.
従来例の構成とその問題点
従来の地熱水利用の熱水造成設備を第２図に基
づき説明すると、生産井１から汲上げられた高温
地熱水は圧力調整タンク２に一旦溜められた後、
熱交換器３に送られ、ここで低温水が熱せられて
熱水となる。そして熱を放出して低温となつた低
温地熱水は、混合槽４に送られ、ここで圧力調整
タンク２から直接送られる余剰高温地熱水と一緒
に混合されて還元井５に排出されている。なお、
図中、６は圧力調整タンク２内の地熱水蒸気を水
気に放出してタンク２内圧力を一定にするための
圧力制御弁で、タンク２に接続された圧力調整器
７により制御されている。ところで、上記混合槽
４は、還元される低温地熱水のバツフアー用と、
還元される低温地熱水の圧力を安定させるために
設けられており、従つて上記圧力は使用上大気圧
が望ましいが、地熱水を空気に接触させると、地
熱水中の還元性物質が酸化してシリカの析出を促
進し、還元井の目詰りを起してしまう問題があつ
た。（例えば特開昭59−86864号公報に記載されて
いる。）このため、混合槽４は大気と遮断された
密閉型にされると共に、真空ポンプ８及びベント
コンデンサー９を使用して圧力を調整していたが
（なお、このベントコンデンサーは、主として真
空ポンプにより不凝縮性ガスを吸引するとこれに
随伴して大気へ排出される蒸気量が多くなるのを
防ぐために設けられている。）真空ポンプ及びベ
ントコンデンサーを必要とすると共に混合槽を圧
力容器にしなければならず、設備費が高くつくと
いう欠点があつた。Configuration of conventional example and its problems To explain the conventional hot water production equipment using geothermal water based on Fig. 2, high temperature geothermal water pumped from production well 1 is temporarily stored in pressure adjustment tank 2. rear,
It is sent to the heat exchanger 3, where the low temperature water is heated to become hot water. The low-temperature geothermal water that releases heat and becomes low-temperature is sent to the mixing tank 4, where it is mixed with excess high-temperature geothermal water that is sent directly from the pressure adjustment tank 2, and is discharged to the reinjection well 5. ing. In addition,
In the figure, reference numeral 6 denotes a pressure control valve for discharging geothermal steam in the pressure adjustment tank 2 into water to keep the pressure inside the tank 2 constant, and is controlled by a pressure regulator 7 connected to the tank 2. By the way, the mixing tank 4 is used for buffering low-temperature geothermal water to be reduced;
This is provided to stabilize the pressure of the low-temperature geothermal water that is being reduced. Therefore, atmospheric pressure is preferable for use, but when the geothermal water is brought into contact with air, the reducing substances in the geothermal water are oxidized. There was a problem that this promoted the precipitation of silica and caused clogging of the reinjection well. (For example, it is described in Japanese Patent Application Laid-Open No. 59-86864.) Therefore, the mixing tank 4 is made into a closed type that is isolated from the atmosphere, and the pressure is adjusted using a vacuum pump 8 and a vent condenser 9. (This vent condenser is mainly provided to prevent the amount of vapor from being discharged into the atmosphere from increasing when non-condensable gas is sucked in by the vacuum pump.) In addition to requiring a vent condenser, the mixing tank had to be a pressure vessel, resulting in high equipment costs.
発明の目的
本発明は上記従来の欠点を解消し得る地熱水利
用の熱水造成設備を提供することを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to provide a hot water creation facility that utilizes geothermal water that can eliminate the above-mentioned conventional drawbacks.
発明の構成
上記目的を達成するため、本発明の地熱水利用
の熱水造成設備は、生産井から汲上げられた高温
地熱水を溜める圧力調整タンクと、該圧力調整タ
ンクから送られた高温地熱水と低温水との間で熱
交換を行なう熱交換器と、該熱交換器を出た低温
地熱水を還元井に排出する経路途中に設けられて
この排出される低温地熱水の圧力安定を図るため
の大気開放型の混合槽と、上記圧力調整タンク内
の地熱水蒸気を混合槽内に導いて混合槽内への大
気の流入を阻止するための蒸気導入管とから構成
したもので、熱交換器を出た低温地熱水を混合槽
を介して還元井に排出する際、大気開放型の混合
槽に地熱水蒸気を導入すると共にその開放部より
大気側に放出させて、混合槽内への大気の流入を
阻止するようにしたものである。Structure of the Invention In order to achieve the above object, the geothermal water production equipment of the present invention includes a pressure regulating tank for storing high temperature geothermal water pumped up from a production well, and a pressure regulating tank for storing high temperature geothermal water pumped from a production well. A heat exchanger that exchanges heat between high-temperature geothermal water and low-temperature water, and a route for discharging the low-temperature geothermal water that exits the heat exchanger to a reinjection well are installed to remove the low-temperature geothermal water that is discharged. Consists of a mixing tank that is open to the atmosphere to stabilize water pressure, and a steam introduction pipe that guides the geothermal steam in the pressure adjustment tank into the mixing tank and prevents air from flowing into the mixing tank. When the low-temperature geothermal water exiting the heat exchanger is discharged to the reinjection well via the mixing tank, geothermal steam is introduced into the mixing tank that is open to the atmosphere, and is released into the atmosphere from the open part. , which prevents air from entering the mixing tank.
実施例と作用
以下、本発明の一実施例を第１図に基づいて説
明する。Embodiment and Operation An embodiment of the present invention will be described below with reference to FIG.
１１は汲上げ管１２を介して生産井１３から汲
上げられた高温地熱水を一時的に溜める圧力調整
タンクで、高温地熱水の圧力を調整するためのも
のである。１４は高温地熱水と低温水との間で熱
交換を行なつて低温水を熱水に変える熱交換器
で、圧力調整タンク１１とは流量制御弁１５を有
する地熱水供給管１６を介して接続されている。
なお、１７は低温水供給管、１８は熱水取出管で
ある。１９は熱交換器１４から出た低温地熱水を
還元井２０に排出する途中に設けられてこの排出
される低温地熱水の圧力安定を図ると共に圧力調
整タンク１１内の余剰高温地熱水を低温地熱水に
混合させて排出するための大気開放型の混合槽
で、その上端が開放部１９ａにされると共にその
上方にはルーフ２１が設けられている。また、混
合槽１９中間部と熱交換器１４及び圧力調整タン
ク１１底部とは地熱水排出管２２及び圧力調整タ
ンク１１の液面調整弁２３を有する余剰地熱水排
出管２４を介して接続され、更に混合槽１９底部
と還元井２０とは地熱水戻し管２５を介して接続
されている。なお、上記流量制御弁１５及び液面
調整弁２３は熱交換器１４の負荷に応じて制御さ
れる。２６は圧力調整タンク１１内の地熱水蒸気
を混合槽１９の開放部１９ａすぐ下側に導入して
この混合槽１９内への大気の流入を阻止するため
の蒸気導入管で、その途中には圧力調整タンク１
１に取付けられた圧力調整器２７により制御され
る圧力制御弁２８が設けられている。 Reference numeral 11 denotes a pressure adjustment tank that temporarily stores high-temperature geothermal water pumped up from the production well 13 via a pumping pipe 12, and is used to adjust the pressure of the high-temperature geothermal water. Reference numeral 14 denotes a heat exchanger that exchanges heat between high-temperature geothermal water and low-temperature water to convert the low-temperature water into hot water. connected via.
In addition, 17 is a low temperature water supply pipe, and 18 is a hot water extraction pipe. Reference numeral 19 is provided in the middle of discharging the low temperature geothermal water discharged from the heat exchanger 14 to the reinjection well 20 to stabilize the pressure of the discharged low temperature geothermal water and to stabilize the excess high temperature geothermal water in the pressure adjustment tank 11. This is a mixing tank that is open to the atmosphere and is used to mix geothermal water with low-temperature geothermal water and discharge the mixture.The upper end of the mixing tank is an open part 19a, and a roof 21 is provided above the open part 19a. Further, the middle part of the mixing tank 19, the heat exchanger 14, and the bottom part of the pressure adjustment tank 11 are connected via a geothermal water discharge pipe 22 and an excess geothermal water discharge pipe 24 having a liquid level adjustment valve 23 of the pressure adjustment tank 11. Furthermore, the bottom of the mixing tank 19 and the reinjection well 20 are connected via a geothermal water return pipe 25. Note that the flow rate control valve 15 and the liquid level adjustment valve 23 are controlled according to the load on the heat exchanger 14. 26 is a steam introduction pipe for introducing the geothermal steam in the pressure adjustment tank 11 directly below the open part 19a of the mixing tank 19 to prevent atmospheric air from flowing into the mixing tank 19; Adjustment tank 1
A pressure control valve 28 is provided which is controlled by a pressure regulator 27 attached to 1.
従つて、上記構成によると、生産井１３から汲
上げられた高温地熱水は圧力調整タンク１１に一
旦溜められた後、熱交換器１４に送られ、ここで
低温水を熱して熱水とする。そして熱を放出して
低温となつた低温地熱水は、混合槽１９に送ら
れ、ここで圧力調整タンク１１から直接送られる
余剰高温地熱水と一緒に混合されて還元井２０に
排出される。この時、混合槽１９の上部には、蒸
気導入管２６より地熱水蒸気が導入されると共に
この地熱水蒸気が開放部１９ａより大気側に流出
するようにされているため、混合槽１９内への大
気の流入が阻止されている。 Therefore, according to the above configuration, the high-temperature geothermal water pumped up from the production well 13 is once stored in the pressure adjustment tank 11 and then sent to the heat exchanger 14, where the low-temperature water is heated and converted into hot water. do. The low-temperature geothermal water, which has become low temperature by releasing heat, is sent to the mixing tank 19, where it is mixed with excess high-temperature geothermal water sent directly from the pressure adjustment tank 11, and is discharged to the reinjection well 20. Ru. At this time, geothermal steam is introduced into the upper part of the mixing tank 19 from the steam introduction pipe 26, and this geothermal steam flows out to the atmosphere through the open part 19a, so that the atmosphere is not allowed to enter the mixing tank 19. The influx is being blocked.
発明の効果
上記本発明の構成によると、地熱水蒸気を利用
して大気と地熱水とが接触するのを阻止している
ので、従来のように真空ポンプを必要とせず、ま
た従来のように真空ポンプにより多量の地熱水蒸
気を強制的に吸引するのに比べて、真空ポンプは
もちろんベントコンデンサーも必要とせず、更に
混合槽は大気開放型であるため、圧力容器にしな
くてもよく、従つて設備全体のコスト低減化を図
ることもできる。Effects of the Invention According to the configuration of the present invention described above, since contact between the atmosphere and geothermal water is prevented using geothermal steam, there is no need for a vacuum pump as in the past, and there is no need for a vacuum pump as in the past. Compared to forcibly sucking in a large amount of geothermal steam using a vacuum pump, there is no need for a vacuum pump or a vent condenser, and since the mixing tank is open to the atmosphere, it does not need to be a pressure vessel. It is also possible to reduce the cost of the entire equipment.
第１図は本発明の一実施例の概略構成図、第２
図は従従来例の概略構成図である。
１１……圧力調整タンク、１３……生産井、１
４……熱交換器、１９……混合槽、１９ａ……開
放部、２０……還元井、２６……蒸気導入管。
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, and FIG.
The figure is a schematic configuration diagram of a conventional example. 11...Pressure adjustment tank, 13...Production well, 1
4... Heat exchanger, 19... Mixing tank, 19a... Open part, 20... Reduction well, 26... Steam introduction pipe.
Claims (1)
圧力調整タンクと、該圧力調整タンクから送られ
た高温地熱水と低温水との間で熱交換を行なう熱
交換器と、該熱交換器を出た低温地熱水を還元井
に排出する経路途中に設けられてこの排出される
低温地熱水の圧力安定を図るための大気開放型の
混合槽と、上記圧力調整タンク内の地熱水蒸気を
混合槽内に導いて混合槽内への大気の流入を阻止
するための蒸気導入管とから構成したことを特徴
とする地熱水利用の熱水造成設備。1. A pressure adjustment tank that stores high-temperature geothermal water pumped up from a production well, a heat exchanger that exchanges heat between the high-temperature geothermal water and low-temperature water sent from the pressure adjustment tank, and the heat exchanger. A mixing tank that is open to the atmosphere is installed in the middle of the path for discharging the low-temperature geothermal water from the vessel to the reinjection well to stabilize the pressure of the discharged low-temperature geothermal water, and the geothermal water in the pressure regulating tank is 1. A hot water production facility using geothermal water, characterized by comprising a steam introduction pipe for guiding water vapor into a mixing tank and preventing atmospheric air from flowing into the mixing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16218784A JPS6141849A (en) | 1984-07-31 | 1984-07-31 | Hot water supply equipment utilizing geothermal water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16218784A JPS6141849A (en) | 1984-07-31 | 1984-07-31 | Hot water supply equipment utilizing geothermal water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6141849A JPS6141849A (en) | 1986-02-28 |
| JPH0125973B2 true JPH0125973B2 (en) | 1989-05-22 |
Family
ID=15749657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16218784A Granted JPS6141849A (en) | 1984-07-31 | 1984-07-31 | Hot water supply equipment utilizing geothermal water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6141849A (en) |
-
1984
- 1984-07-31 JP JP16218784A patent/JPS6141849A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6141849A (en) | 1986-02-28 |
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