JPH0534399Y2 - - Google Patents
Info
- Publication number
- JPH0534399Y2 JPH0534399Y2 JP17282287U JP17282287U JPH0534399Y2 JP H0534399 Y2 JPH0534399 Y2 JP H0534399Y2 JP 17282287 U JP17282287 U JP 17282287U JP 17282287 U JP17282287 U JP 17282287U JP H0534399 Y2 JPH0534399 Y2 JP H0534399Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- panel
- trough
- temperature
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 110
- 239000006200 vaporizer Substances 0.000 claims description 9
- 230000008016 vaporization Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims 1
- 239000003949 liquefied natural gas Substances 0.000 description 18
- 239000013535 sea water Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 241000287227 Fringillidae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、LNG（液化天然ガス）等の低温液体
を海水等を使用して気化するオープンラツク式気
化器の送水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 water supply device for an open rack vaporizer that vaporizes a low-temperature liquid such as LNG (liquefied natural gas) using seawater or the like.
［従来の技術］
第２図に従来のLNG用オープンラツク式気化
器を示す。この従来例において、１は気化用のパ
ネル、２はトラフ、３は水槽、４は海水等の送水
ポンプ、５は送水配管、６は流量制御弁にして、
パネル１内にLNGを通し、このパネル１に沿つ
てトラフ２から送水配管５を経由して送水されて
来た水を流下させてLNGを気化するもので、送
水量は負荷（LNG量）及び水温に関係なく常時
一定である。[Prior Art] Figure 2 shows a conventional open rack vaporizer for LNG. In this conventional example, 1 is a vaporization panel, 2 is a trough, 3 is a water tank, 4 is a water pump for seawater, etc., 5 is a water supply pipe, and 6 is a flow rate control valve.
LNG is passed through the panel 1, and the water sent from the trough 2 via the water pipe 5 is flowed down along the panel 1 to vaporize the LNG, and the amount of water sent is determined by the load (LNG amount) and It remains constant regardless of water temperature.
［従来技術の問題点］ このため、次にような問題がある。[Problems with conventional technology] Therefore, the following problems arise.
(1) LNG負荷が100％未満の場合及び水温が高い
場合には熱媒として過剰送水を行つていること
になり、送水ポンプ等の電力消費量に無駄が多
い。(1) If the LNG load is less than 100% or the water temperature is high, excessive water is being sent as a heat medium, and there is a lot of waste in power consumption for water pumps, etc.
(2) 過剰送水の結果、水槽及び排水設備内の水温
が高くなるために貝等の海生物が成長し、この
排除等に手数と費用が嵩む。(2) As a result of excessive water supply, the water temperature in the aquarium and drainage equipment increases, causing the growth of sea creatures such as shellfish, which increases the effort and cost of removing them.
本考案の目的は、オープンラツク式気化器にお
いて、電力消費量の節約を図り、海生物の成長を
抑制する送水装置を提案することである。 The purpose of the present invention is to propose a water conveying device that saves power consumption and suppresses the growth of marine organisms in an open rack vaporizer.
［問題点を解決するための手段］
上記問題点を解決するために提案される技術手
段は以下のとおりである。[Means for solving the problems] The technical means proposed to solve the above problems are as follows.
下部にLNG導入部を形成し、上部にNG回収部
を形成して成る熱交換用のパネルと、
前記パネルの上部に配置されていて気化用の水
をパネルに沿つて流下させるためのトラフと、
前記パネルに沿つて流下して来た水を受け止め
て溜める水槽と、
前記水槽内の水を汲み上げてトラフ内に循環さ
せる循環配管と、
前記水槽内に送水するための送水制御弁付の送
水配管と、
前記水槽内の水温を検出し、この水温を一定温
度に維持するように前記制御弁を制御する水温セ
ンサーと、
から成るオープンラツク式気化器の送水装置。 A heat exchange panel having an LNG introduction section at the bottom and an NG recovery section at the top, and a trough arranged at the top of the panel for causing water for vaporization to flow down along the panel. , a water tank that receives and stores water flowing down along the panel; circulation piping that pumps up the water in the water tank and circulates it into the trough; and a water supply unit equipped with a water supply control valve that supplies water to the water tank. A water supply device for an open rack vaporizer, comprising: piping; and a water temperature sensor that detects the water temperature in the water tank and controls the control valve to maintain the water temperature at a constant temperature.
［作用］
上記送水装置においては、水槽内の水を循環配
管を経由してトラフ内に揚水し、循環させながら
使うもので、LNG負荷が例えば減つた場合には、
水槽内の水温が上昇するので、この場合には送水
流量制御弁を閉方向に調整して水槽内への送水量
を減少させ、トラフへの揚水水温を一定に調整し
て気化を行なうものである。そして、LNG負荷
が増加した場合には水槽内の水温が低下するの
で、この場合には送水流量制御弁を開方向に調整
して水槽内へ送水量を増加することによりこの水
槽内の水温を一定に回復せしめ、これをトラフへ
揚水する。なお、送水分に見合う水量は水槽から
オーバーフローする。[Function] In the above-mentioned water supply device, the water in the water tank is pumped into the trough via the circulation pipe and used while being circulated.
Since the water temperature in the aquarium increases, in this case, the water flow control valve is adjusted in the closing direction to reduce the amount of water sent into the aquarium, and the temperature of the water pumped to the trough is adjusted to a constant level to perform vaporization. be. If the LNG load increases, the water temperature in the tank will drop, so in this case, the water flow rate control valve is adjusted in the open direction to increase the amount of water sent into the tank, thereby reducing the water temperature in the tank. The water is recovered to a certain level and then pumped into the trough. Note that the amount of water corresponding to the water supply will overflow from the tank.
［実施例］
第１図は上記本考案の実施例を示すもので、１
はパネル（フインチユーブ）、１ａはLNG（導入
部、１ｂは（天然ガス）回収部、２はトラフ……
にして、前記パネル１上に沿つて配設されている
と共にこのトラフ２からオーバーフローさせた水
はパネル１に沿つて流下する。[Example] Figure 1 shows an example of the above-mentioned present invention.
is the panel (finch tube), 1a is the LNG (introduction part), 1b is the (natural gas) recovery part, 2 is the trough...
The trough 2 is disposed along the panel 1 and the water overflowing from the trough 2 flows down along the panel 1.
３はパネル１の下方に構築された水槽にして、
この水槽３は上段３′と下段３″から成り、上段
３′にはオーバーフロー口３ａが形成されている。
なお、上段３′と下段３″は仕切壁７により仕切ら
れているが、この仕切壁７の上端７′はやや低く
抑えられており、この結果上段３′と下段３″は連
通している。 3 is a water tank built below panel 1,
This water tank 3 consists of an upper stage 3' and a lower stage 3'', and an overflow port 3a is formed in the upper stage 3'.
Note that the upper tier 3' and the lower tier 3'' are separated by a partition wall 7, but the upper end 7' of this partition wall 7 is kept slightly low, and as a result, the upper tier 3' and the lower tier 3'' are in communication. .
４は送水ポンプ、５は送水ポンプ４から送水さ
れた水を前記水槽３内下段３″に送水する送水配
管、６はこの送水量を調節するための制御弁にし
て、この制御弁６は水槽３の下段３″に取り付け
た水温センサー８からの信号により水温が高くな
つた場合には閉方向に、反対に低くなつた場合に
は閉方向に制御されるようになつている。 4 is a water pump; 5 is a water pipe that sends water from the water pump 4 to the lower section 3'' in the water tank 3; 6 is a control valve for adjusting the amount of water sent; When the water temperature becomes high, the water temperature is controlled in the closing direction, and on the other hand, when the water temperature becomes low, the water temperature sensor 8 is controlled in the closing direction based on a signal from a water temperature sensor 8 attached to the lower stage 3'' of the water temperature sensor 3.
９は前記水槽３の下段３″内と前記トラフ２内
を連通している循環配管にして、水槽３内の水を
循環ポンプ１０によりトラフ２内に揚水するため
のものである。 Reference numeral 9 denotes a circulation pipe that communicates the inside of the lower stage 3'' of the water tank 3 with the inside of the trough 2, and is used to pump water in the water tank 3 into the trough 2 by a circulation pump 10.
次に、上記実施例についてその作用を説明す
る。 Next, the operation of the above embodiment will be explained.
送水ポンプ４から水槽３の下段３′内に送水さ
れた水を、循環ポンプ１０により循環配管９を経
由してトラフ２内に揚水され、このトラフ２から
パネル１に沿つて流下し、パネル１内のLNGに
熱を与えてこれを気化させて水槽３内に至る。 The water sent from the water pump 4 to the lower stage 3' of the water tank 3 is pumped up into the trough 2 via the circulation piping 9 by the circulation pump 10, flows down from the trough 2 along the panel 1, and is pumped up into the trough 2 by the circulation pump 10. Heat is applied to the LNG inside to vaporize it and reach the inside of the water tank 3.
LNG負荷が100％であり、送水の水温が設計温
度の場合はトラフ２への揚水量と同一量の水を水
槽３″に送水する。そして、LNG負荷が減つてき
た場合、および送水の水温が設計温度より上昇し
た場合にはこの分トラフへの揚水水温が上昇する
ので、この場合には制御弁６を制御して送水量を
制御する。 When the LNG load is 100% and the water temperature of the water supply is at the design temperature, the same amount of water as the amount of water pumped into trough 2 is sent to tank 3''.If the LNG load is decreasing and the water temperature of the water supply is If the temperature rises above the design temperature, the temperature of the water pumped to the trough will rise accordingly, so in this case, the control valve 6 is controlled to control the amount of water fed.
そして、再びLNG負荷が増加、および送水の
水温が低下して、トラフへの揚水水温が低下して
来た場合には前記とは反対の制御を行う。 Then, when the LNG load increases again and the temperature of the water being fed decreases, causing the temperature of the water pumped to the trough to decrease, the opposite control to that described above is performed.
［本考案の効果］
本考案は以上のように、水槽とトラフ間に循環
配管を取り付けてこの循環配管を経由して気化用
の水をトラフとの間で循環させ、海水等の送水は
従来のように直接トラフへ行うのではなく、
LNG負荷や水温の変化に合わせて水槽側へ行く
ようにした。[Effects of the present invention] As described above, the present invention installs a circulation pipe between the water tank and the trough, and circulates water for vaporization between the trough and the water tank via this circulation pipe, unlike conventional water supply such as seawater. Instead of going directly to the trough as in
It was designed to move to the water tank according to changes in LNG load and water temperature.
この結果、従来のように一定水量をLNG負荷
及び水温に関係なく送水する場合に比較して大巾
に電力消費量を節約できる。下記はその試算であ
る。 As a result, power consumption can be significantly reduced compared to the conventional case where a constant amount of water is sent regardless of the LNG load and water temperature. The following is an estimate.
・ 気化器能力 100T／Ｈ
年平均負荷率 75％
年間稼働率 70％
設計海水温度 ８℃
設計海水量 3500T／Ｈ
・ 送水設備
必要揚程 37M（TOTAL）
海面−気化器水槽 22M
気化器水槽−トラフ 15M
年平均海水温度 15℃
ポンプ効率 80％
この時の年間必要電力量は
・ 従来の場合
365日×24H×0.7×3500T／Ｈ×103×37M／3600×102K
g・ｍ／ｓ×0.8＝2.70×106KWH／Ｙ
・ 本考案の場合
365日×24H×0.7×（3500T／Ｈ×103×15M＋1330T／
Ｈ×103×22M／3600×102Kg・ｍ／ｓ×0.8）
＝1.71×106KWH／Ｙ
ここで（ ）内第２項の1330T／Ｈはトラフへ
揚水温度８℃一定制御とした場合の水槽への平均
送水量である。・ Vaporizer capacity 100T/H Annual average load rate 75% Annual operation rate 70% Design seawater temperature 8℃ Design seawater volume 3500T/H ・ Water transmission equipment Required head 37M (TOTAL) Sea level - vaporizer tank 22M Vaporizer tank - trough 15M Annual average seawater temperature 15℃ Pump efficiency 80% At this time, the annual power requirement is: Conventional case: 365 days x 24H x 0.7 x 3500T/H x 10 3 x 37M/3600 x 102K
g・m/s×0.8=2.70× 106 KWH/Y ・In case of this invention 365 days×24H×0.7×(3500T/H× 103 ×15M+1330T/
H x 10 3 x 22M/3600 x 102Kg・m/s x 0.8) = 1.71 x 10 6 KWH/Y Here, 1330T/H in the second term in parentheses is when the pumping water temperature to the trough is controlled at a constant 8℃. This is the average amount of water sent to the aquarium.
・ 電力節減率
2.70×106−1.71×106／2.70×106×100＝37（％）
このように本考案の場合、従来方式に対し37％
の電力を節減できる。- Power saving rate 2.70×10 6 −1.71×10 6 /2.70×10 6 ×100 = 37 (%) In this way, in the case of this invention, 37% compared to the conventional method
can save electricity.
次に、LNG負荷により変動する水温を常時監
視し、これにより送水量を調節するばかりでな
く、水槽内の水温すなわち排水温度をLNG負荷
変動および送水の水温に関係なく一定範囲に例え
ば約７℃〜２℃（20％負荷〜100％負荷）に制御
できるので、水槽及び排水設備中における海生物
の成長は殆どない。 Next, the water temperature, which fluctuates depending on the LNG load, is constantly monitored, and in addition to adjusting the water supply amount, the water temperature in the water tank, that is, the drainage temperature, is kept within a fixed range, for example, about 7°C, regardless of LNG load fluctuations and the water temperature of the water supply. Since it can be controlled at ~2°C (20% load to 100% load), there is almost no growth of sea creatures in the aquarium and drainage equipment.
第１図は本考案に係る送水装置の説明図、第２
図は従来のオープンラツク式気化器の送水装置の
説明図である。
１……パネル、２……トラフ、３……水槽、４
……送水ポンプ、５……送水配管、９……循環配
管、１０……循環ポンプ。
Figure 1 is an explanatory diagram of the water supply device according to the present invention, Figure 2
The figure is an explanatory diagram of a conventional open rack type vaporizer water supply device. 1...Panel, 2...Trough, 3...Aquarium, 4
...Water pump, 5...Water pipe, 9...Circulation pipe, 10...Circulation pump.
Claims (1)
を形成して成る熱交換用のパネルと、 前記パネルの上部に配置されていて気化用の水
をパネルに沿つて流下させるためのトラフと、 前記パネルに沿つて流下して来た水を受け止め
て溜める水槽と、 前記水槽内の水を汲み上げてトラフ内に循環さ
せる循環配管と、 前記水槽内に送水するための送水制御弁付の送
水配管と、 前記水槽内の水温を検出し、この水温を一定温
度に維持するように前記制御弁を制御する水温セ
ンサーと、 から成るオープンラツク式気化器の送水装置。[Scope of Claim for Utility Model Registration] A heat exchange panel comprising an LNG introduction section at the bottom and an NG recovery section at the top, and a panel arranged at the top of the panel to supply water for vaporization to the panel. a trough for allowing the water to flow down along the panel; a water tank for receiving and storing water flowing down along the panel; circulation piping for pumping up water from the water tank and circulating it within the trough; and supplying water to the water tank. A water supply system for an open rack vaporizer, comprising: a water supply pipe equipped with a water supply control valve for the water tank; and a water temperature sensor that detects the water temperature in the water tank and controls the control valve to maintain the water temperature at a constant temperature. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17282287U JPH0534399Y2 (en) | 1987-11-11 | 1987-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17282287U JPH0534399Y2 (en) | 1987-11-11 | 1987-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0177200U JPH0177200U (en) | 1989-05-24 |
| JPH0534399Y2 true JPH0534399Y2 (en) | 1993-08-31 |
Family
ID=31464772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17282287U Expired - Lifetime JPH0534399Y2 (en) | 1987-11-11 | 1987-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534399Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022180810A1 (en) * | 2021-02-26 | 2022-09-01 | 日揮株式会社 | Fuel gasification equipment |
| WO2022180812A1 (en) * | 2021-02-26 | 2022-09-01 | 日揮株式会社 | Fuel vaporization equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107107991B (en) * | 2014-12-16 | 2019-05-14 | 韩国Gas公社 | Seawater supply unit for open rack gasifiers |
| JP6420223B2 (en) * | 2015-10-14 | 2018-11-07 | 株式会社神戸製鋼所 | Gas vaporizer |
-
1987
- 1987-11-11 JP JP17282287U patent/JPH0534399Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022180810A1 (en) * | 2021-02-26 | 2022-09-01 | 日揮株式会社 | Fuel gasification equipment |
| WO2022180812A1 (en) * | 2021-02-26 | 2022-09-01 | 日揮株式会社 | Fuel vaporization equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0177200U (en) | 1989-05-24 |
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