JPS6341798A - Heat exchanger and method of removing deposit from heat exchanger - Google Patents
Heat exchanger and method of removing deposit from heat exchangerInfo
- Publication number
- JPS6341798A JPS6341798A JP18618286A JP18618286A JPS6341798A JP S6341798 A JPS6341798 A JP S6341798A JP 18618286 A JP18618286 A JP 18618286A JP 18618286 A JP18618286 A JP 18618286A JP S6341798 A JPS6341798 A JP S6341798A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- solvent
- chamber
- demister
- supplied
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 239000002904 solvent Substances 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract 3
- 239000007924 injection Substances 0.000 claims abstract 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 3
- 238000004090 dissolution Methods 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 22
- 239000011593 sulfur Substances 0.000 description 22
- 229910052717 sulfur Inorganic materials 0.000 description 22
- 239000000567 combustion gas Substances 0.000 description 20
- 238000011084 recovery Methods 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 239000002912 waste gas Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001868 water Inorganic materials 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、熱交換器および熱交換器の沈積物除去方法に
係り、特に熱交換器の沈積物を除去するための装置およ
びその方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a heat exchanger and a method for removing deposits from a heat exchanger, and more particularly to an apparatus for removing deposits from a heat exchanger and a method thereof. Regarding improvements.
化学工場等における石油精製装置から副生する廃ガスの
一部は、硫化水素、アンモニア等を含んだものがあり、
この廃ガスは、一般に、硫黄回収装置において、硫化水
素は硫黄と水に、アンモニアは窒素と水とに分解されて
いる。Some of the waste gas produced by oil refining equipment in chemical factories, etc. contains hydrogen sulfide, ammonia, etc.
In this waste gas, hydrogen sulfide is generally decomposed into sulfur and water, and ammonia is decomposed into nitrogen and water in a sulfur recovery device.
ところで、石油精製装置に供給される原油中に硫化水素
やアンモニア成分が比較的多く含まれている場合にあっ
ては、この原油の精製中に発生する廃ガスが供給される
硫黄回収装置の内部、特に熱交換器におけるチューブの
熱源供給側端部あるいはデミスタ−等に廃ガス中の成分
、とりわけ、アンモニウム塩が沈積固化して熱交換器内
の流路に詰まりを生じさせ、廃ガスの正常な流動を阻害
するという問題がある。このことは、全体とじての硫黄
回収率の低下を招く一方、硫黄回収装置の稼動を停止さ
せねばならないという点で無視することのできない問題
である。By the way, if the crude oil supplied to the oil refinery contains relatively large amounts of hydrogen sulfide and ammonia components, the inside of the sulfur recovery equipment to which the waste gas generated during the refining of the crude oil is supplied. In particular, components in the waste gas, especially ammonium salts, deposit and solidify at the heat source supply side end of the tube or demister in the heat exchanger, clogging the flow path in the heat exchanger, and causing the normal flow of the waste gas. There is a problem that the flow is obstructed. This is a problem that cannot be ignored in that it causes a decrease in the overall sulfur recovery rate and requires the operation of the sulfur recovery equipment to be stopped.
また、熱交換器における廃ガス中成分による沈積物の発
生は硫黄回収装置に限らず、他の一般の熱交換器におい
ても問題となる。Furthermore, the generation of deposits due to components in waste gas in heat exchangers is a problem not only in sulfur recovery equipment but also in other general heat exchangers.
そのため、前記熱交換器内における沈積物による詰まり
を解消することのできる装置の開発が切望されていた。Therefore, there has been a strong desire to develop a device that can eliminate clogging caused by deposits in the heat exchanger.
本発明の目的は、例えば硫黄回収装置の熱交換器内にお
ける流路の詰まりを解除して装置全体としての掻業率の
向上を図ることができる熱交換器および熱交換器の沈積
物除去方法を提供することにある。An object of the present invention is to provide a heat exchanger and a method for removing deposits from a heat exchanger, which can improve the pumping efficiency of the entire device by unblocking the flow path in the heat exchanger of a sulfur recovery device, for example. Our goal is to provide the following.
〔問題点を解決するための手段および作用〕本発明に係
る熱交換器は、熱交換器におけるチューブの熱源供給側
端部および／またはデミスタ−に対向して溶媒噴出装置
を配置したことを特徴として構成されている。[Means and effects for solving the problem] The heat exchanger according to the present invention is characterized in that a solvent jetting device is disposed opposite the heat source supply side end of the tube and/or the demister in the heat exchanger. It is configured as.
また、本発明に係る熱交換器の沈積物除去方法は、熱交
換器の運転中に、チューブ端部および／またはデミスタ
−に溶媒を噴出させてチューブおよび／またはデミスタ
−の沈積物を溶融除去することにより達成される。Further, the method for removing deposits from a heat exchanger according to the present invention includes jetting a solvent onto the tube ends and/or the demister to melt and remove deposits from the tubes and/or the demister during operation of the heat exchanger. This is achieved by
換言すれば、本発明は、廃ガスを燃焼して熱交換器に熱
源として供給される燃焼ガス中成分の沈禎固化による詰
まりがチューブ端部および／またはデミスタ−に生ずる
点に着目し、この詰まり箇所に対応して溶媒噴出装置を
設け、この溶媒噴出装置から前記詰まり箇所に水等の溶
媒を噴出させて沈積物を溶融し、燃焼ガスの流路を狭め
ることがないようにして熱交換率の低下を回避するとと
もに硫黄回収率の向上を図り、これにより前記目的を達
成しようとするものである。In other words, the present invention focuses on the fact that clogging occurs at the tube ends and/or the demister due to precipitation and solidification of components in the combustion gas, which is supplied as a heat source to the heat exchanger by burning waste gas. A solvent jetting device is provided corresponding to the clogged location, and a solvent such as water is jetted from the solvent jetting device to the clogged location to melt the deposits and exchange heat without narrowing the flow path of the combustion gas. The objective is to avoid a decrease in the sulfur recovery rate and improve the sulfur recovery rate, thereby achieving the above objective.
以下、本発明の一実施例を添付図面に基づいて説明する
。Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.
第１図には、硫黄回収装置の概略構成が示されている。FIG. 1 shows a schematic configuration of a sulfur recovery device.
この図において、硫黄回収装置は燃焼炉１０と、第１な
いし第３の反応炉１１〜１３と、第１ないし第３の熱交
換器１５〜１７と、焼却炉１８とを含んで構成されてい
る。In this figure, the sulfur recovery apparatus includes a combustion furnace 10, first to third reactors 11 to 13, first to third heat exchangers 15 to 17, and an incinerator 18. There is.
前記燃焼炉１０には、図示しない石油精製装置から副生
された硫化水素およびアンモニアを含む廃ガスに空気が
混入されて供給される。この燃焼か１０での燃焼により
生じた硫黄は図示しない硫黄回収部に回収され、一方、
燃焼室１０で高温度となった燃焼ガスは第１の反応炉１
１へと送られ、この第１の反応炉１１にて所定の反応が
行われる。The combustion furnace 10 is supplied with air mixed with waste gas containing hydrogen sulfide and ammonia produced as by-products from an oil refinery (not shown). The sulfur produced by this combustion or the combustion in step 10 is recovered in a sulfur recovery section (not shown), and on the other hand,
The combustion gas that has reached a high temperature in the combustion chamber 10 is transferred to the first reactor 1.
1, and a predetermined reaction is carried out in this first reactor 11.
前記第１の反応炉１１を通過された燃焼ガスは、第１の
熱交換器Ｉ５に供給され、この第１の熱交換器１５にて
茶気を発生させる等の熱交換が行われる一方、ここでの
熱交換によって生成した硫黄も回収されるようになって
いる。 ゛第１の外交換器１５を通過した燃焼ガスは
、以後前述と同じように、第２、第３の反応炉１２゜１
３および第２、第３の熱交換器１６．１７に送られて所
定の反応、熱交換ならびに硫黄回収が継続され、燃焼ガ
スの未燃分は最終段階において焼却炉１８にて燃焼され
、排ガス対策が講じられて屋外へ排出される。The combustion gas that has passed through the first reactor 11 is supplied to the first heat exchanger I5, and heat exchange such as generation of tea is performed in the first heat exchanger 15, while The sulfur produced by heat exchange here is also recovered.゛The combustion gas that has passed through the first external exchanger 15 is then transferred to the second and third reactors 12゜1 in the same manner as described above.
The combustion gas is sent to the second and third heat exchangers 16 and 17 to continue predetermined reactions, heat exchange, and sulfur recovery, and the unburned content of the combustion gas is burned in the incinerator 18 in the final stage, and the exhaust gas is Measures are taken to discharge it outdoors.
第２図には、前記硫黄回収装置における第１ないし第３
の熱交換器１５〜１７の内部構造が示されている。なお
、本実施例における熱交換器１５〜１７はそれぞれ同一
構造であるため、便宜上、第１の熱交換器１５として図
示、説明する。FIG. 2 shows the first to third sulfur recovery equipment.
The internal structures of heat exchangers 15 to 17 are shown. In addition, since the heat exchangers 15 to 17 in this embodiment have the same structure, they will be illustrated and described as the first heat exchanger 15 for convenience.
熱交換器１５の本体２０内には、この本体２０の長手方
向に所定間隔を隔てて一対のチューブシート２１．２１
が配設されている。これらチューブシート２１．２１は
、本体２０の図中左右両側に第１、第２の部屋２２．２
３をそれぞれ画成するとともに、中間にボイラー水の収
納室２４を画成する。Inside the main body 20 of the heat exchanger 15, a pair of tube sheets 21 and 21 are arranged at a predetermined interval in the longitudinal direction of the main body 20.
is installed. These tube sheets 21.21 have first and second chambers 22.2 on both left and right sides of the main body 20 in the figure.
3, and a boiler water storage chamber 24 is defined in the middle.
前記チューブシート２１．２１間には、前記収納室２４
内を通って熱交換用のチューブ２５が複数本配設され、
これらチューブ２５の両端開口側は、前記第１、第２の
部屋２２．２３に連通され、これにより、加熱用の燃焼
ガスが熱交換器１５内を貫流するようになっている。The storage chamber 24 is located between the tube sheets 21 and 21.
A plurality of tubes 25 for heat exchange are arranged through the inside,
The open ends of these tubes 25 communicate with the first and second chambers 22 and 23, so that heating combustion gas flows through the heat exchanger 15.
前記第１の部屋２２には、第１の反応炉１１に連通する
配管２６が連結されるとともに、第２の部屋２３には、
第２の反応炉１２に連通する配管２７が連結され、第１
の反応炉１１を経て送られてくる燃焼ガスは、配管２６
、第１の部屋２２、チューブ２５、第２の部屋２３およ
び配管２７を通って第２の反応炉１２へと送られるよう
になっており、前記収納室２４に収納されたボイラー水
は、チューブ２５を通過する燃焼ガスとの熱交換により
蒸気化され、この蒸気は、図示しない周辺装置の反応用
蒸気あるいは動力源等に用いられるようになっている。A pipe 26 communicating with the first reactor 11 is connected to the first chamber 22, and a pipe 26 communicating with the first reactor 11 is connected to the second chamber 23.
A pipe 27 communicating with the second reactor 12 is connected to the first
The combustion gas sent through the reactor 11 is passed through the pipe 26.
The boiler water stored in the storage chamber 24 is sent to the second reactor 12 through the first chamber 22, tube 25, second chamber 23 and piping 27. The steam is vaporized by heat exchange with the combustion gas passing through 25, and this steam is used as reaction steam or a power source for peripheral equipment (not shown).
前記第２の部屋２３内には、燃焼ガスを清浄するデミス
タ−２９が配置されているとともに、この第２の部屋２
３からは、生成された硫黄が外部に排出されて回収され
るようになっている。A demister 29 for cleaning the combustion gas is disposed inside the second chamber 23, and
From No. 3 onwards, the generated sulfur is discharged to the outside and recovered.
前記第１の部屋２２には、前記チ工−ブ２５の第２図中
左側端部に対抗して水、油等の沈積物溶解用溶媒を噴出
する溶媒噴出装置としての第１のノズル３０が複数配置
されているとともに、第２の部屋には、前記デミスタ−
２９に対抗して同しく溶媒噴出袋πとしての第２のノズ
ル３１が複数配置されている。これら第１、第２のノズ
ル３０゜３１は、第１、第２の部屋２２．２３に延長さ
れた配管３２．３３を介して単一の溶媒供給源３５に接
続されている。In the first chamber 22, there is a first nozzle 30 as a solvent ejecting device that ejects a solvent for dissolving deposits, such as water or oil, against the left side end of the tube 25 in FIG. A plurality of demisters are arranged in the second room, and the demister is arranged in the second room.
A plurality of second nozzles 31, which also serve as solvent ejection bags π, are arranged opposite to the nozzles 29. These first and second nozzles 30 and 31 are connected to a single solvent supply source 35 via piping 32.33 extending to the first and second chambers 22.23.
前記配管３２．３３の途中には、第１、第２のノズル３
０．３１から噴出される溶媒の噴出量を制御する電磁弁
３６．３７が設けられている。これら電磁弁３６．３７
は、コントローラ３９に接続され、このコントローラか
らの制御指令に対応して電磁弁３６．３７の開閉および
開度が制御されるようになっている。In the middle of the pipes 32 and 33, there are first and second nozzles 3.
Electromagnetic valves 36 and 37 are provided to control the amount of solvent ejected from 0.31. These solenoid valves 36.37
are connected to a controller 39, and the opening/closing and opening degree of the electromagnetic valves 36 and 37 are controlled in response to control commands from the controller.
前記コントローラ３９には、第１の部屋２２内へ供給さ
れる燃焼ガスの流量を検知する流１計４０および第１の
部屋２２内の圧力を検知する圧力計４１が接続されてい
るとともに、第２の部屋２３から排出される燃焼ガスの
流量を検知する流量計４３および第２の部屋２３内の圧
力を検知する圧力計４４が接続されている。これにより
、前記第１の部屋２２内に供給される燃焼ガスの量と第
２の部屋２２から排出される燃焼ガスの量とを比較し、
あるいは、第１および第２の部ｉ２２．２３内の圧力差
を検知して、前記電磁弁３６．３７の開度を制御し、第
１、第２のノズル３０．３１から噴出する溶媒の噴出量
が無段階に制御Ｂできるようになっている。A flow meter 40 for detecting the flow rate of combustion gas supplied into the first chamber 22 and a pressure gauge 41 for detecting the pressure within the first chamber 22 are connected to the controller 39. A flow meter 43 that detects the flow rate of combustion gas discharged from the second chamber 23 and a pressure gauge 44 that detects the pressure inside the second chamber 23 are connected. Thereby, the amount of combustion gas supplied into the first chamber 22 and the amount of combustion gas discharged from the second chamber 22 are compared,
Alternatively, the pressure difference in the first and second parts i22.23 is detected to control the opening degree of the electromagnetic valve 36.37, and the solvent is ejected from the first and second nozzles 30.31. The amount can be controlled steplessly.
なお、第２図中耕号４５はアンモニウム塩等の沈積物で
ある。Note that No. 45 in FIG. 2 is deposits of ammonium salts, etc.
次に、本実施例による沈積物除去方法について説明する
。Next, a method for removing deposits according to this embodiment will be explained.
いま、第１の反応炉１１からの燃焼ガスは第１の熱交換
３１５に供給され、この第１の熱交換器１５から排出さ
れる燃焼ガスは第２の反応炉１２へと連続的に送られて
いる。Now, the combustion gas from the first reactor 11 is supplied to the first heat exchanger 315, and the combustion gas discharged from the first heat exchanger 15 is continuously sent to the second reactor 12. It is being
ここで、石油精製装置における原油中の硫化水素、アン
モニアの含有成分が増大する等の理由により、第１の熱
交換器１５内のチューブ２５の第１の部屋側における端
部および、第２の部屋２３内のデミスタ−２９に沈積物
４５であるアンモニウム塩が沈積して（ると、第１の部
屋２２へ供給される燃焼ガスの流量と第２の部屋２３か
ら排出される燃焼ガスの流量とに差が生じ、あるいは、
第１、第２の部屋２２．２３内の圧力差が生しることと
なる。Here, due to reasons such as an increase in the content of hydrogen sulfide and ammonia in crude oil in oil refining equipment, the ends of the tubes 25 in the first heat exchanger 15 on the first room side and the second Ammonium salt as a deposit 45 is deposited in the demister 29 in the chamber 23 (as a result, the flow rate of the combustion gas supplied to the first chamber 22 and the flow rate of the combustion gas discharged from the second chamber 23 There is a difference between
A pressure difference will arise within the first and second chambers 22,23.
ここで、前記流量計４０．４３および圧力計４１．４４
により検知された値は、それぞれコントローラ３９へ与
えられ、このコントローラ３９は、所定演算処理して沈
積物４５の沈積量を判断し、この沈積物４５の溶解に必
要な溶媒の噴出量と噴出時間とを相対的に判断する。そ
の結果は電磁弁３６．３７に制御信号として与えられる
。コントローラ３９からの制御信号により、電磁弁３６
゜３７は開放され、所定時間溶媒を供給し、第１、第２
のノズル３０．３１より沈積物４５に溶媒を噴出する。Here, the flow meter 40.43 and the pressure gauge 41.44
The detected values are respectively given to the controller 39, and the controller 39 performs predetermined calculation processing to determine the amount of deposited material 45, and determines the ejection amount and ejection time of the solvent necessary to dissolve the deposit 45. Judging relatively. The result is given as a control signal to the solenoid valves 36,37. The solenoid valve 36 is activated by a control signal from the controller 39.
37 is opened, the solvent is supplied for a predetermined time, and the first and second
The solvent is spouted onto the deposit 45 from the nozzles 30 and 31 of.
これにより、沈積物４５は溶解されることとなる。ここ
での溶媒の噴出量および噴出時間は、それぞれ０．０５
１ ／−４ｎ〜５１ ／ｎ＋ｉｎおよび３〜６０秒間の
範囲で最適噴出量、噴出時間が決定され、より好ましい
範囲は、０．１〜１１／ｍｉｎおよび５〜３０秒間であ
る。これは、溶媒噴出量が前記噴出量より少ないと、直
ちに茶気となって溶解効果が期待できないとともに、前
記範囲より多すぎると硫黄中の水分が増大して好ましく
ないためである。なお、溶解が完了すると、前記流量計
４０．４３および圧力計４１．４４からは、前述のｉｔ
差および圧力差がなくなる検出値をコントローラ３９に
与えるため、これを検知したコントローラ３９は電磁弁
３６．３７を閉塞させる制御信号を与えることとなる。As a result, the deposit 45 will be dissolved. The ejection amount and ejection time of the solvent here are each 0.05
The optimum ejection amount and ejection time are determined in the range of 1/-4n to 51/n+in and 3 to 60 seconds, and the more preferable range is 0.1 to 11/min and 5 to 30 seconds. This is because if the amount of solvent ejected is less than the above-mentioned amount, it will immediately become brownish and no dissolution effect can be expected, and if it is too much than the above-mentioned range, the water content in the sulfur will increase, which is undesirable. When the melting is completed, the flow meter 40.43 and the pressure gauge 41.44 output the
In order to provide the controller 39 with a detected value that eliminates the difference and the pressure difference, the controller 39 that detects this will provide a control signal to close the solenoid valves 36 and 37.
このような本実施例によれば、次のような効果がる。According to this embodiment, the following effects can be achieved.
すなわち、沈積物４５の沈積状態を前記流量差あるいは
圧力差により検知するよう構成するとともに、この沈積
の生じ易い箇所に対応して溶媒を噴出するノズル３０．
３１を配置したから、運転中に難な（沈積物を溶解させ
ることができ、燃焼ガスの流路を閉塞して装置の運転を
停止するようなｊされはなく、装置全体としての操業率
を低下させることがない。That is, the nozzle 30 is configured to detect the deposition state of the deposit 45 based on the flow rate difference or pressure difference, and jets out a solvent corresponding to the location where the deposit is likely to occur.
31, it is possible to dissolve deposits during operation, prevent the flow path of combustion gas from being blocked and stop the operation of the equipment, and improve the operating rate of the equipment as a whole. It will not deteriorate.
また、溶媒噴出量および時間も、前記流量差、圧力差を
検知するごとにより所定檄を所定時間噴出するようコン
トローラ３９が？ｉａ磁弁３６，３７を制御するよう構
成したから、沈積物の溶解を効率よく行うことができ、
また、回収される硫黄の水分増加を抑制できるという効
果がある。Further, the controller 39 controls the amount and time of solvent ejection so as to eject a predetermined amount for a predetermined time every time the flow rate difference and pressure difference are detected. Since the configuration is configured to control the ia magnetic valves 36 and 37, it is possible to efficiently dissolve deposits,
Moreover, it has the effect of suppressing the increase in moisture content of the recovered sulfur.
しかも、噴出装置としてのノズル構造も簡単で、コスト
をさほど高騰させることな〈従来装置に適用することが
できる。Moreover, the nozzle structure as the ejection device is simple and can be applied to conventional devices without increasing the cost so much.
なお、前記説明においては、本発明が硫黄回収装置にお
ける熱交換器であるものとして説明したが、必ずしもこ
れに限定されるものでなく、その他の熱交換器であって
も、沈積物を生ずる装置の各部に適用できるものである
。In the above explanation, the present invention has been explained as a heat exchanger in a sulfur recovery equipment, but it is not necessarily limited to this, and even other heat exchangers can be used as devices that produce deposits. It can be applied to each part of
また、溶媒としては、水または曲以外の溶媒も使用する
ものであってもよい。Further, as the solvent, solvents other than water or music may also be used.
さらに、前記流量差または圧力差を検出した際には、警
報等を鳴らせて作業者に通報する構成を採用することも
できる。Furthermore, when the flow rate difference or pressure difference is detected, a configuration may be adopted in which an alarm or the like is sounded to notify the operator.
また、前記説明においては、電磁弁３６．３７からのｍ
ｌおよび時間は、コントローラ３９により制？■される
ものとしたが、前記計器類が示す値を作業者が感知して
手動でｔ磁弁３６．３７を開放することでもよい。ただ
し、コントローラを採用した場合には、より正確な制御
が自動的に行える利点がある。In addition, in the above description, m from the solenoid valve 36.
l and time are controlled by the controller 39? (3) However, the operator may sense the values indicated by the instruments and manually open the t-magnetic valves 36 and 37. However, when a controller is used, there is an advantage that more accurate control can be performed automatically.
さらに、第２の部屋２３において圧力計４４は１箇所の
み設けたが、デミスタ−２９の上下流に圧力計をそれぞ
れ設けてもよく、このようにすれば、デミスタ−２９へ
の沈積物４５の沈積状態を検知できるという利点がある
。Further, although only one pressure gauge 44 is provided in the second room 23, pressure gauges may be provided upstream and downstream of the demister 29, and in this way, the deposits 45 on the demister 29 can be reduced. It has the advantage of being able to detect the state of deposition.
上述のように、本発明によれば、硫黄回収装置等の熱交
換器内における流路の詰まりを解除して装置全体として
の操業率の向上を図ることができる熱交換器および熱交
換器の沈積物除去方法を提供することができるという効
果がある。As described above, the present invention provides a heat exchanger and a heat exchanger that can improve the operation rate of the entire device by unblocking the flow path in the heat exchanger of a sulfur recovery device or the like. The present invention has the advantage that a method for removing deposits can be provided.
第１図は、本実施例に係る熱交換器が採用された硫黄回
収装置の概略構成図、第２図は、少き交換器の沈積物除
去装置を示した概略図である。
１５．１６．１７・・・第１ないし第３の熱交換器、２
２．２３・・・第１、第２の部屋、２５・・・チューブ
、２９・・・デミスタ−２３０，３１・・・溶媒噴出装
置としての第１、第２のノズル、３６．３７・・・電磁
弁、３９・・・コントローラ、４０．４３・・・ｆｉｆ
ｆｉ計、４１゜４４・・・圧力計。FIG. 1 is a schematic diagram of a sulfur recovery apparatus employing a heat exchanger according to this embodiment, and FIG. 2 is a schematic diagram showing a sludge removal apparatus of a small exchanger. 15.16.17...first to third heat exchanger, 2
2.23... First and second chambers, 25... Tubes, 29... Demister-230, 31... First and second nozzles as solvent ejection devices, 36.37...・Solenoid valve, 39...controller, 40.43...fif
fi meter, 41°44...pressure gauge.
Claims (4)
び／またはデミスターに対向して溶媒噴射装置を配置し
たことを特徴とする熱交換器。(1) A heat exchanger characterized in that a solvent injection device is disposed opposite the heat source supply side end of the tube and/or the demister in the heat exchanger.
はデミスターに溶媒を噴出させて、チューブおよび／ま
たはデミスターの沈積物を溶融除去することを特徴とす
る熱交換器の沈積物除去方法。(2) A method for removing deposits from a heat exchanger, which comprises squirting a solvent into the tube ends and/or the demister to melt and remove deposits from the tubes and/or the demister during operation of the heat exchanger. .
量および噴出時間は、熱交換器の加熱用流体の導入側と
流体排出側の圧力差により制御されることを特徴とする
熱交換器の沈積物除去方法。(3) The heat exchanger according to claim 2, wherein the ejection amount and ejection time of the solvent are controlled by a pressure difference between a heating fluid introduction side and a fluid discharge side of the heat exchanger. How to remove deposits from vessels.
量および噴出時間は、熱交換器への加熱用流体の導入量
と熱交換器からの排出量との差に基づいて制御されるこ
とを特徴とする熱交換器の沈積物除去方法。(4) In claim 2, the ejection amount and ejection time of the solvent are controlled based on the difference between the amount of heating fluid introduced into the heat exchanger and the amount discharged from the heat exchanger. A method for removing deposits from a heat exchanger, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618286A JPS6341798A (en) | 1986-08-08 | 1986-08-08 | Heat exchanger and method of removing deposit from heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618286A JPS6341798A (en) | 1986-08-08 | 1986-08-08 | Heat exchanger and method of removing deposit from heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6341798A true JPS6341798A (en) | 1988-02-23 |
Family
ID=16183824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18618286A Pending JPS6341798A (en) | 1986-08-08 | 1986-08-08 | Heat exchanger and method of removing deposit from heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6341798A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006327964A (en) * | 2005-05-24 | 2006-12-07 | Nippon Shokubai Co Ltd | Method for producing borazine compound |
| JP2009537785A (en) * | 2006-05-19 | 2009-10-29 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration |
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
-
1986
- 1986-08-08 JP JP18618286A patent/JPS6341798A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006327964A (en) * | 2005-05-24 | 2006-12-07 | Nippon Shokubai Co Ltd | Method for producing borazine compound |
| JP2009537785A (en) * | 2006-05-19 | 2009-10-29 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration |
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
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