JPH0433961B2 - - Google Patents
Info
- Publication number
- JPH0433961B2 JPH0433961B2 JP59128308A JP12830884A JPH0433961B2 JP H0433961 B2 JPH0433961 B2 JP H0433961B2 JP 59128308 A JP59128308 A JP 59128308A JP 12830884 A JP12830884 A JP 12830884A JP H0433961 B2 JPH0433961 B2 JP H0433961B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fluid
- energy recovery
- recovery turbine
- fluid energy
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- 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
- Y02E10/20—Hydro energy
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Water Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、高圧プラント運転における流体エネ
ルギーを効率よく回収して有効利用を図るエネル
ギー回収方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an energy recovery method for efficiently recovering and effectively utilizing fluid energy during high-pressure plant operation.
［背景技術とその問題点］
従来、例えば粗製ガソリンを熱分解等の処理を
してベンゼン、トルエン、又はキシレン等の芳香
族を製造する工程等においては、高圧反応塔が用
いられている。高圧反応塔では省エネルギーの立
場から流体が有している高圧エネルギーをタービ
ン等を用いて回収している。[Background Art and Problems Therein] Conventionally, high-pressure reaction towers have been used, for example, in the process of producing aromatics such as benzene, toluene, or xylene by subjecting crude gasoline to a treatment such as thermal decomposition. In the high-pressure reaction tower, the high-pressure energy contained in the fluid is recovered using a turbine or the like in order to save energy.
第２図は、従来の高圧反応塔における流体エネ
ルギー回収の例で、高圧反応塔１は冷却器２、流
体エネルギー回収タービン（HPRT）３を介し
て気液分離槽４に連結されている。高圧反応塔１
と冷却器２との間には、圧力調節計５が設けら
れ、この圧力調節計５により制御される制御弁６
が前記冷却器２と流体エネルギー回収タービン３
との間に設けられている。 FIG. 2 shows an example of fluid energy recovery in a conventional high-pressure reaction tower, in which a high-pressure reaction tower 1 is connected to a gas-liquid separation tank 4 via a cooler 2 and a fluid energy recovery turbine (HPRT) 3. High pressure reaction tower 1
A pressure regulator 5 is provided between and the cooler 2, and a control valve 6 is controlled by the pressure regulator 5.
is the cooler 2 and the fluid energy recovery turbine 3
is established between.
前記流体エネルギー回収タービン３には、原料
供給ポンプ７が連結される。ポンプ７は、また電
動機８にも連結され、電動機８は電源９に接続さ
れ、これによりポンプ７はタービン３或いは電動
機８により駆動されるようになつている。 A raw material supply pump 7 is connected to the fluid energy recovery turbine 3 . The pump 7 is also connected to an electric motor 8, which is connected to a power source 9, so that the pump 7 is driven by the turbine 3 or the electric motor 8.
このような構成において、前記高圧反応塔１の
排出口たる塔頂口１Ａからでた反応生成物である
流体は、冷却器２で冷却された後、流体エネルギ
ー回収タービン３に入り、その流体エネルギー回
収タービン３で流体自身が保有している高圧の落
差（常圧に対する圧力差）エネルギーを回収され
た後、気液分離槽４に入り、そこで気体と液体に
分離され、次の工程に移る。このタービン３に回
収されたエネルギーによりポンプ７が回転され、
所要の原料の供給がなされる。 In such a configuration, the fluid which is the reaction product coming out from the top port 1A which is the outlet of the high-pressure reaction tower 1 is cooled by the cooler 2, and then enters the fluid energy recovery turbine 3, where the fluid energy is recovered. After the high-pressure head (pressure difference with respect to normal pressure) energy possessed by the fluid itself is recovered in the recovery turbine 3, the fluid enters the gas-liquid separation tank 4, where it is separated into gas and liquid, and then moves on to the next process. The pump 7 is rotated by the energy recovered by the turbine 3,
The necessary raw materials are supplied.
前記流体エネルギー回収タービン３より上流の
流体の圧力は、圧力調節計５で検出され、その圧
力調節計５の出力信号を受けた制御弁６により、
流路の圧力制御がなさされ、それによつて流体エ
ネルギー回収タービン３は、常に一定の回転数で
回転して原料供給ポン７を駆動するようになつて
いる。 The pressure of the fluid upstream of the fluid energy recovery turbine 3 is detected by a pressure regulator 5, and a control valve 6 receives an output signal from the pressure regulator 5 to
The pressure in the flow path is controlled, so that the fluid energy recovery turbine 3 always rotates at a constant rotation speed to drive the raw material supply pump 7.
ところで、流体エネルギー回収タービン３の出
力が不足して原料供給ポンプ７の吐出量が足りな
い場合は、不足の程度に応じて原料供給ポンプ７
に連動させた電動機８の駆動力を増加させること
によつて、吐出量を一定に保つように電動機８が
制御される。 By the way, if the output of the fluid energy recovery turbine 3 is insufficient and the discharge amount of the raw material supply pump 7 is insufficient, the output of the raw material supply pump 7 is changed according to the degree of shortage.
By increasing the driving force of the electric motor 8 in conjunction with , the electric motor 8 is controlled to keep the discharge amount constant.
ところが、流体エネルギー回収タービン３は、
上流の圧力を制御する機能をもたないため、上述
のように制御弁６により流体の圧力を制御するこ
とが必要となり、圧力変動を見込んで制御弁６の
差圧を設計するから、高圧反応塔１からでた流体
のもつている高圧エネルギーを常にロスすること
になり、流体エネルギー回収タービン３のエネル
ギー回収機能を低下させることとなる問題があ
る。 However, the fluid energy recovery turbine 3
Since it does not have a function to control the upstream pressure, it is necessary to control the fluid pressure using the control valve 6 as described above.The differential pressure of the control valve 6 is designed in anticipation of pressure fluctuations, so high-pressure reactions are not possible. There is a problem in that the high-pressure energy of the fluid coming out of the tower 1 is constantly lost, which deteriorates the energy recovery function of the fluid energy recovery turbine 3.
この為、エネルギーを高効率回収する方法が望
まれている。 Therefore, a method for recovering energy with high efficiency is desired.
［発明の目的］
本発明の目的は、高圧プラント運転において、
流体のもつているエネルギーを、無駄なく全て利
用できる効率のよい高圧塔のエネルギー回収方法
を提供することにある。[Object of the invention] The object of the invention is to solve the following problems in high pressure plant operation:
An object of the present invention is to provide an efficient energy recovery method for a high pressure column that can utilize all of the energy contained in a fluid without wasting it.
［問題点を解決するための手段およびその作用］
本発明は、流体タービンによるエネルギー回収
を最も効率よく行うためには、高圧反応塔等の高
圧塔から気液分離槽に至る系の間全圧力差を途中
で減圧等をすることなく全て利用することである
ことに着目してなされたもので、高圧塔からの流
体に対して、タービンの抵抗を加減して圧力調整
を行えるようにすることで、調整弁等の途中の減
圧を省略しようとするものである。[Means for Solving the Problems and Their Effects] The present invention proposes that in order to most efficiently recover energy using a fluid turbine, it is necessary to reduce the total pressure between a high pressure column such as a high pressure reaction column and a gas-liquid separation tank. This was done by focusing on the idea of making full use of the difference without having to reduce the pressure midway through, making it possible to adjust the pressure of the fluid from the high-pressure tower by adjusting the resistance of the turbine. This is an attempt to omit intermediate pressure reduction through adjustment valves, etc.
すなわち、高圧反応塔等の高圧塔の塔頂口から
気液分離槽へ至る流体の高圧エネルギーをそのま
ま利用して流体エネルギー回収タービンを駆動
し、この流体エネルギー回収タービンに連結され
た誘導発電機を駆動させて電力を発生させ、この
発生電力を電圧・周波数可変回生器により商用電
源に回生（回収）する。この際、前記誘導発電機
の励磁電力となる電圧・周波数を変えることによ
つて、誘導発電機に直結されている流体エネルギ
ー回収タービンの回転数を制御することができ、
一方、流体エネルギー回収タービンは回転数と、
受入れ流体差圧（落差）とが固有の関係を有する
ので、この回転数を制御することにより流体エネ
ルギー回収タービンの入口側抵抗を調整し、高圧
塔からの流体圧力を目的の圧力に調整することに
より、高圧塔と流体エネルギー回収タービンとの
間に従来設置されていた圧力調整弁等を不要とす
る。そして、これらの圧力調整弁等による圧損を
なくしたうえ、高圧塔からの高圧流体を流体エネ
ルギー回収タービンへ直接導入することで、流体
エネルギーの回収効率を高めることにより前記目
的を達成しようとするものである。 That is, the high-pressure energy of the fluid flowing from the top of a high-pressure tower such as a high-pressure reaction tower to a gas-liquid separation tank is directly used to drive a fluid energy recovery turbine, and an induction generator connected to this fluid energy recovery turbine is activated. It is driven to generate electric power, and the generated electric power is regenerated (recovered) to the commercial power source by a variable voltage/frequency regenerator. At this time, by changing the voltage and frequency that serve as the excitation power of the induction generator, the rotation speed of the fluid energy recovery turbine directly connected to the induction generator can be controlled,
On the other hand, the fluid energy recovery turbine has a rotational speed of
Since there is a unique relationship with the receiving fluid pressure difference (head difference), by controlling this rotation speed, the inlet resistance of the fluid energy recovery turbine can be adjusted, and the fluid pressure from the high pressure tower can be adjusted to the desired pressure. This eliminates the need for pressure regulating valves, etc. that were conventionally installed between the high pressure column and the fluid energy recovery turbine. In addition to eliminating the pressure loss caused by these pressure regulating valves, etc., the high pressure fluid from the high pressure tower is introduced directly into the fluid energy recovery turbine, thereby attempting to achieve the above objective by increasing the fluid energy recovery efficiency. It is.
［実施例］
以下、本発明の一実施例を第１図に基づいて説
明する。[Example] Hereinafter, an example of the present invention will be described based on FIG.
高圧塔、例えば高圧反応塔１の塔頂口１Ａに
は、冷却機２および流体エネルギー回収タービン
３を介して気液分離槽４が接続されている。前記
流体エネルギー回収タービン３には誘導発電機１
０が接続され、この誘導発電機１０の出力は、電
圧・周波数可変回生器１１を介して商用電源１２
に接続されている。この商用電源１２としては、
通常の50又は60ヘルツの商用電源である。 A gas-liquid separation tank 4 is connected to a top port 1A of a high-pressure tower, for example, a high-pressure reaction tower 1, via a cooler 2 and a fluid energy recovery turbine 3. The fluid energy recovery turbine 3 includes an induction generator 1
0 is connected, and the output of this induction generator 10 is connected to a commercial power supply 12 via a voltage/frequency variable regenerator 11.
It is connected to the. As this commercial power source 12,
It is a regular 50 or 60 hertz commercial power source.
前記電圧・周波数可変回生器１１には、高圧反
応塔１の塔頂口１Ａと冷却機２との間に設けられ
た圧力調節計５の制御信号５Ａが入力され、この
信号５Ａにより電圧・周波数可変回生器１１は、
その出力の周波数・電圧が制御されている。 A control signal 5A from a pressure regulator 5 provided between the top port 1A of the high-pressure reaction tower 1 and the cooler 2 is input to the voltage/frequency variable regenerator 11, and this signal 5A allows the voltage/frequency to be adjusted. The variable regenerator 11 is
The frequency and voltage of its output are controlled.
次に、本実施例の作用について説明する。 Next, the operation of this embodiment will be explained.
流体エネルギー回収タービン３で回収されたエ
ネルギー（動力）は、誘導発電機１０により電力
に変換される。電圧・周波数可変回生器１１は誘
導発電機１０の励磁電圧・周波数を制御すること
ができ、誘導発電機１０と直結された流体エネル
ギー回収タービン３の回転数が制御される。同時
に電圧・周波数可変回生器１１は、誘導発電機１
０で発生した電力を受けとり、商用電源１２に回
生（回収）することができきる機能を持つ。 The energy (power) recovered by the fluid energy recovery turbine 3 is converted into electric power by the induction generator 10. The variable voltage/frequency regenerator 11 can control the excitation voltage/frequency of the induction generator 10, and the rotation speed of the fluid energy recovery turbine 3 directly connected to the induction generator 10 is controlled. At the same time, the voltage/frequency variable regenerator 11 is connected to the induction generator 1
It has the function of receiving power generated at 0 and regenerating (recovering) it to the commercial power supply 12.
流体エネルギー回収タービンの回転数と流体落
差（圧力差または流体エネルギー回収タービンの
入口圧力と読み替ることもできる）とは固有の特
性をもち、回転数を変えることにより塔頂口１Ａ
の圧力を制御することができる。 The rotational speed of the fluid energy recovery turbine and the fluid head (which can also be read as the pressure difference or the inlet pressure of the fluidic energy recovery turbine) have unique characteristics, and by changing the rotational speed, the top port 1A
The pressure can be controlled.
即ち、流体エネルギー回収タービン３よりも上
流側の流体の流量が変化すると、塔頂口１Ａの圧
力が変化する。この圧力の変化は、圧力調節計５
で検出され、制御信号５Ａが電圧・周波数可変回
生器１１に送られる。制御信号５Ａの指令により
電圧・周波数可変回生器１１は、誘導発電機１０
の励磁電圧・周波数を変えることができ、誘導発
電機１０と直結された流体エネルギー回収タービ
ン３の回転数を変えることができる。流体エネル
ギー回収タービン３は、回転数の変化によつて、
落差（差圧）が変化し、塔頂口１Ａの圧力を目標
値に引き戻すことができる。 That is, when the flow rate of the fluid upstream of the fluid energy recovery turbine 3 changes, the pressure at the tower top port 1A changes. This change in pressure is determined by the pressure controller 5.
, and a control signal 5A is sent to the voltage/frequency variable regenerator 11. The voltage/frequency variable regenerator 11 is activated by the induction generator 10 according to the command of the control signal 5A.
The excitation voltage and frequency of the induction generator 10 can be changed, and the rotational speed of the fluid energy recovery turbine 3 directly connected to the induction generator 10 can be changed. The fluid energy recovery turbine 3 changes the rotation speed,
The head (differential pressure) changes, and the pressure at the tower top port 1A can be pulled back to the target value.
上述のような本実施例によれば、タービン３、
発電機１０、回生器１ないし調整計５が一連の圧
力制御系として働き、従来の方法に用いられた圧
力制御弁を取除くことができ、流体のもつている
エネルギーの全てを利用できるので、高効率のエ
ネルギー回収が可能となる。また、電圧・周波数
可変回生器１１が受入れた電力は、商用電源１２
へ自動的に回生（回収）され、他の有目的電力と
して活用することができる。 According to this embodiment as described above, the turbine 3,
The generator 10, the regenerator 1 or the regulator 5 work as a series of pressure control systems, and the pressure control valve used in the conventional method can be removed, making it possible to utilize all of the energy contained in the fluid. Highly efficient energy recovery becomes possible. In addition, the electric power received by the voltage/frequency variable regenerator 11 is transferred to the commercial power source 12.
It can be automatically regenerated (recovered) and used for other purposes.
なお、前記実施例においては、高圧塔としては
高圧反応塔につき説明したが、本発明はこれに限
定されず、蒸留塔、その他の高圧を発生する塔に
も本発明は適用できる。 In the above embodiments, the high-pressure reaction tower was explained as the high-pressure tower, but the present invention is not limited thereto, and the present invention can also be applied to distillation towers and other towers that generate high pressure.
上述のように本発明によれば、高圧プラントに
おいて高圧流体エネルギーの効率的な回収を図れ
るエネルギー回収方法を提供することができると
いう効果がある。 As described above, according to the present invention, it is possible to provide an energy recovery method that can efficiently recover high-pressure fluid energy in a high-pressure plant.
第１図は本発明に係る方法を適用したたプラン
トを示す系統図、第２図は従来例を示す系統図で
ある。
１……高圧塔としての高圧反応塔、２……冷却
器、３……流体エネルギー回収タービン、４……
気液分離器、５……圧力調節計、５Ａ……制御信
号、１０……誘導発電機、１１……電圧・周波数
可変回生器、１２……商用電源。
FIG. 1 is a system diagram showing a plant to which the method according to the present invention is applied, and FIG. 2 is a system diagram showing a conventional example. 1... High pressure reaction tower as a high pressure column, 2... Cooler, 3... Fluid energy recovery turbine, 4...
Gas-liquid separator, 5...pressure regulator, 5A...control signal, 10...induction generator, 11...voltage/frequency variable regenerator, 12...commercial power supply.
Claims (1)
高圧エネルギーを利用して流体エネルギー回収タ
ービンを駆動し、この流体エネルギー回収タービ
ンに連結された誘導発電機を駆動させて電力を発
生させ、この発生電力を電圧・周波数可変回生器
を介して商用電源に供給するとともに、 前記高圧塔と流体エネルギー回収タービンとの
間の流体圧力変動を圧力調整計で検出し、その圧
力調整計の出力信号に基づいて前記電圧・周波数
回生器を用いて前記誘導発電機の励磁電圧・周波
数を制御して当該誘導発電機および流体エネルギ
ー回収タービンの回転数を制御し、 前記高圧塔からの流体を圧力調整することなく
流体エネルギー回収タービンへ直接導入するとと
もに、前記流体エネルギー回収タービンの回転数
制御により前記高圧塔から気液分離槽へ到る流体
の圧力を調整することを特徴とする高圧塔のエネ
ルギー回収方法。[Claims] 1. Drives a fluid energy recovery turbine using the high pressure energy of the fluid flowing from the outlet of the high pressure tower to the gas-liquid separation tank, and drives an induction generator connected to the fluid energy recovery turbine. and supplying the generated power to a commercial power source via a variable voltage/frequency regenerator, and detecting fluid pressure fluctuations between the high pressure tower and the fluid energy recovery turbine with a pressure regulator, Based on the output signal of the pressure regulator, the voltage/frequency regenerator is used to control the excitation voltage/frequency of the induction generator to control the rotational speed of the induction generator and the fluid energy recovery turbine; The fluid from the tower is directly introduced into the fluid energy recovery turbine without pressure adjustment, and the pressure of the fluid from the high pressure tower to the gas-liquid separation tank is adjusted by controlling the rotation speed of the fluid energy recovery turbine. Energy recovery method for high pressure towers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59128308A JPS618476A (en) | 1984-06-20 | 1984-06-20 | Recovering method of energy in high-pressure tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59128308A JPS618476A (en) | 1984-06-20 | 1984-06-20 | Recovering method of energy in high-pressure tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618476A JPS618476A (en) | 1986-01-16 |
| JPH0433961B2 true JPH0433961B2 (en) | 1992-06-04 |
Family
ID=14981562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59128308A Granted JPS618476A (en) | 1984-06-20 | 1984-06-20 | Recovering method of energy in high-pressure tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013051523A1 (en) * | 2011-10-03 | 2013-04-11 | 一般社団法人太陽エネルギー研究所 | Device for utilization of volumetric expansion of gas |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4947800B2 (en) * | 2005-08-25 | 2012-06-06 | 株式会社エネルギー応用技術研究所 | Power generation apparatus and power generation method |
| CN110242482A (en) * | 2019-06-12 | 2019-09-17 | 西安格睿能源动力科技有限公司 | Recirculated water backwater top pressure power generation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632078A (en) * | 1979-08-22 | 1981-04-01 | Mitsubishi Petrochem Co Ltd | Energy recovering method |
-
1984
- 1984-06-20 JP JP59128308A patent/JPS618476A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013051523A1 (en) * | 2011-10-03 | 2013-04-11 | 一般社団法人太陽エネルギー研究所 | Device for utilization of volumetric expansion of gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618476A (en) | 1986-01-16 |
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