WO2014101711A1 - Structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné - Google Patents

Structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné Download PDF

Info

Publication number
WO2014101711A1
WO2014101711A1 PCT/CN2013/089966 CN2013089966W WO2014101711A1 WO 2014101711 A1 WO2014101711 A1 WO 2014101711A1 CN 2013089966 W CN2013089966 W CN 2013089966W WO 2014101711 A1 WO2014101711 A1 WO 2014101711A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
upper flange
header
annular
life
Prior art date
Application number
PCT/CN2013/089966
Other languages
English (en)
Chinese (zh)
Inventor
王佐峰
王佐任
刘永启
郑斌
卞玉峰
高亮宝
张英杰
Original Assignee
潍坊联兴新材料科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 潍坊联兴新材料科技股份有限公司 filed Critical 潍坊联兴新材料科技股份有限公司
Publication of WO2014101711A1 publication Critical patent/WO2014101711A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0041—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials

Definitions

  • the utility model relates to a heat exchanger structure for improving the life of a calcined post-heat exchanger, relating to a petroleum coke-type calciner, in particular to a high-temperature calcination post-heat exchanger for a tank calciner.
  • the calcination temperature of petroleum coke in the tank calciner is about 1300 °C. After the calcined petroleum coke is discharged through the furnace floor, it must be hermetically cooled to lower the temperature to below 250 °C to avoid the occurrence of air after calcination. The oxidative combustion reaction results in partial calcination of the coke ablation.
  • the water-cooled jacket is generally used to cool the high-temperature calcined coke, and then discharged through the discharge valve.
  • the water-cooled jacket is generally a double-layer steel plate welded structure, and the inner steel plate encloses a passage of a high-temperature material; the closed annular interlayer space between the inner and outer steel plates is a cooling water passage.
  • the heat is transferred to the cooling water in the interlayer space through the inner steel plate, and the cooling water is sent to the cooling tower or the cool water pool for cooling and recycling. Due to the small heat transfer coefficient of the petroleum coke, the material of the water-cooled jacket is unevenly cooled, and the high-temperature material close to the inner steel plate has a faster cooling rate and a lower temperature; from the outside to the inside, the material temperature is higher and higher. Weifang Lianxing Carbon Co., Ltd.
  • 201110187100.6 discloses a "coal coke-type calciner discharge cooling device", which adopts axial direction on the heat exchange tubes of the inner heat exchanger and the outer heat exchanger.
  • the fins and fins penetrate into the inner layer of the high temperature material, which not only increases the effective heat exchange area of the heat exchanger, but also effectively reduces the heat transfer distance of the inner layer material, and better solves the problem that the inner layer material is difficult to be cooled.
  • the upper part is connected to the furnace bottom plate of the tank calciner through the upper flange plate welded with the outer heat exchanger, and the lower part is welded to the lower flange integrated with the outer heat exchanger.
  • the plate is connected to the discharge valve.
  • the temperature difference between the materials entering and leaving the heat exchanger is as high as 800 ° C, which generates a large thermal stress in the heat exchanger.
  • the upper flange of the outer heat exchanger not only has a high temperature of the contact material, but also directly contacts the bottom plate of the calciner, the temperature is high, and the thermal expansion and deformation are large, which easily causes the weld between the upper flange and the annular upper header. And the butt joint weld of the ring upper header is cracked.
  • the technical problem to be solved by the invention is to overcome the deficiencies of the prior art and provide a heat exchanger structure which improves the working reliability of the calcined post-heat exchanger and improves the service life of the calcined post-heat exchanger.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: the heat exchanger structure for improving the life of the calcined post-heat exchanger, including the outer heat exchanger for enclosing the high-temperature material passage and the inner exchange at the center of the material passage
  • the heat exchanger comprises an annular upper header and an annular lower header, the annular upper header is provided with a water outlet, the annular lower header is provided with a water inlet, and the plurality of outer heat exchange tubes are respectively annular
  • the upper header box and the annular lower header box are fixedly connected and communicated, and a heat conducting baffle is disposed between the adjacent two outer heat exchange tubes, and the heat conducting baffle is respectively connected with the two outer heat exchange tubes and the annular upper collecting box
  • Fixedly connected with the annular lower header, the lower flange is mounted on the lower end of the annular lower header, and the upper flange is mounted on the upper end of the annular upper casing
  • the inner heat exchanger comprises an inner upper header, an inner
  • the upper flange is composed of a plurality of upper flange plates, and an expansion slit is left between the two upper flange plates, which can effectively compensate the deformation caused by the thermal expansion of the upper flange and the thermal expansion of the upper casing, and reduce the upper method.
  • the stress between the weld between the blue and the upper header and the weld on the ring on the ring increases the reliability of the work of the calendered heat exchanger.
  • the gap between the adjacent two upper flange plates is located directly above the girth weld of the annular upper header.
  • the upper flange is composed of two symmetrical upper flange plates.
  • the inner edge of the upper flange plate is located directly above the axis of the tube of the annular upper header.
  • the heat resistant material in the gap between the flange plates is a heat resistant ceramic fiber.
  • the connecting plate has a symmetrical hole
  • the upper flange plate has a symmetrical bolt hole
  • a plurality of bolts pass through the hole and the bolt hole to connect the connecting plate and the upper flange plate together, and are tightly fastened with a nut and a washer. solid.
  • the holes of the connecting plate are oblong.
  • the heat exchanger structure which improves the life of the calendered coke heat exchanger has the beneficial effects of:
  • the upper flange of the heat exchanger is a split structure consisting of a plurality of upper flange plates, each of which is welded to the upper ring header, and the expansion between the adjacent two upper flange plates
  • the gap is used for compensating for the deformation caused by the thermal expansion of the upper flange plate being greater than the thermal expansion of the annular upper header, and effectively reducing the stress on the weld between the upper flange plate and the annular upper header;
  • the girth weld of the annular upper header is located below the gap between two adjacent upper flange plates. When the thermal expansion of the upper flange plate is greater than the thermal expansion of the annular upper header, the girth weld of the annular upper header is subjected to The stress is compressive stress and will not tear the girth weld;
  • the inner edge of the upper flange plate is located directly above the axis of the tube of the annular upper header, which reduces the contact area between the upper flange plate and the high temperature calcined coke, thereby reducing the thermal expansion deformation of the upper flange plate.
  • Figure 1 is a front elevational view of such an embodiment of a heat exchanger structure for increasing the life of a calendered coke heat exchanger.
  • Figure 2 is a cross-sectional view taken along the line A-A of the embodiment shown in Figure 1.
  • Figure 3 is a cross-sectional view taken along line B-B of the embodiment shown in Figure 1.
  • Figure 4 is a schematic view of the connecting plate of the embodiment of the heat exchanger for improving the life of the calcined coke heat exchanger.
  • a heat exchanger structure for improving the service life of a calcined coke heat exchanger comprising an outer heat exchanger for enclosing a high temperature material passage and an inner heat exchanger at a center of the material passage, the outer heat exchanger comprising a ring shape
  • the header box 8 and an annular lower header 2 are both annular tubes, the annular upper header 8 is provided with a water outlet 6, and the annular lower header 2 is provided with a water inlet 16.
  • the plurality of outer heat exchange tubes 3 are fixedly connected to and communicate with the annular upper header 8 and the annular lower header 2, respectively, and constitute a cooling water chamber of the outer heat exchanger.
  • a heat conducting baffle 4 is disposed between the adjacent two outer heat exchange tubes 3, and the heat conducting baffles 4 are fixedly connected to the two outer heat exchange tubes 3, the annular upper header 8 and the annular lower header 2, respectively.
  • the annular lower header 2 is fixedly connected to the lower flange plate 1.
  • the inner heat exchanger comprises an inner upper header 5, an inner lower header 15 and a plurality of inner heat exchange tubes 17, wherein the inner upper header 5 and the inner lower header 15 are horizontal tubes, and the inner heat exchange tubes 17 are mostly a vertical pipe, one end of the inner upper header 5 protrudes through the heat-conducting baffle 4 to the outside of the outer heat exchanger and is connected with the return pipe; the water inlet of the inner lower header 15 protrudes through the heat-conducting baffle 4 to The outside of the outer heat exchanger is connected to the water supply pipe, and each of the inner heat exchange tubes 17 is fixedly connected to the inner upper header 5 and the inner lower header 15 respectively.
  • the upper flange of the heat exchanger is composed of two upper flange plates 7, and each of the upper flange plates 7 has two symmetrical bolt holes, and each upper flange plate 7 and the annular upper header 8 respectively Fixed connection.
  • a gap is left between the two upper flange plates 7, and the heat-resistant material 11 is filled in the gap for sealing; the two ring-welded seams 10 of the annular upper header 8 are respectively located between the gaps between the two upper flange plates 7.
  • the lower side 18 of the upper flange plate 7 is located directly above the tube axis of the annular upper header 8.
  • a connecting plate 9 is arranged under each joint of the two upper flange plates 7, and two connecting plates 9 are provided.
  • Each connecting plate 9 has two symmetrical holes 19, and the bolts 12 pass through the upper method.
  • the bolt holes of the blue plate 7 and the holes 19 in the connecting plate 9 are connected to the upper flange plate 7 and the connecting plate 9 by nuts 13 and washers 14, as shown in Fig. 4, the holes 19 are oblong.
  • the upper flange of the heat exchanger may also be composed of two or more upper flange plates 7, and each upper flange plate 7 is fixedly connected to the annular upper header 8 respectively.
  • the material of the heat resistant material 11 is a heat resistant ceramic fiber, and a heat resistant material such as asbestos may also be used.
  • the working principle is as follows: Since the heat exchanger is in operation, the temperature difference of the materials entering and leaving the heat exchanger is as high as 800 ° C, and a large thermal stress is generated in the heat exchanger.
  • the upper flange of the outer heat exchanger not only has high temperature of the contact material, but also directly contacts the bottom plate of the calciner, the temperature is high, and the deformation is large due to thermal expansion, which easily causes welding between the upper flange and the annular upper header 8.
  • the seam and the butt joint weld of the upper header 8 are cracked, and the upper flange is designed as a split structure, which is composed of a plurality of upper flange plates 7, and an expansion slit is left between the adjacent two upper flange plates 7 to expand
  • the slit can compensate for the deformation caused by the thermal expansion of the upper flange plate 7 greater than the thermal expansion of the annular upper header 8, and effectively reduce the stress on the weld between the upper flange plate 7 and the annular upper header 8.

Abstract

La présente invention concerne une structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné, qui comprend un échangeur thermique extérieur, destiné à enserrer un canal de matériau à haute température et un échangeur thermique intérieur, situé au centre du canal de matériau ; l'échangeur thermique extérieur comprend un collecteur (8) annulaire supérieur et un collecteur (2) annulaire inférieur ; une semelle de renforcement (1) inférieure est installée sur l'extrémité inférieure du collecteur (2) annulaire inférieur et une semelle supérieure est installée sur l'extrémité supérieure du collecteur (8) annulaire supérieur ; la semelle supérieure est formée par la combinaison d'une pluralité de semelles de renforcement (7) supérieures ; chaque semelle de renforcement (7) supérieure est connectée fixe et respectivement au collecteur (8) annulaire supérieur ; chaque groupe de deux semelles de renforcement (7) supérieures adjacentes sont connectées ensemble, par le biais d'une plaque de connexion (9) inférieure ; il existe un écart entre chaque groupe de deux semelles de renforcement (7) supérieures adjacentes ; et l'écart est rempli d'un matériau (11) résistant à la chaleur. La structure compense efficacement la déformation due au fait que l'expansion thermique d'une semelle supérieure est plus importante que celle d'un collecteur annulaire supérieur et réduit les contraintes d'un joint de soudure entre la semelle supérieure et le collecteur annulaire supérieur et d'un joint de soudure circulaire du collecteur annulaire supérieur, ce qui améliore la fiabilité de fonctionnement de l'échangeur thermique à coke calciné et prolonge sa durée de vie utile.
PCT/CN2013/089966 2012-12-25 2013-12-19 Structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné WO2014101711A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210568887.5A CN102976312B (zh) 2012-12-25 2012-12-25 一种提高煅后焦换热器寿命的换热器结构
CN201210568887.5 2012-12-25

Publications (1)

Publication Number Publication Date
WO2014101711A1 true WO2014101711A1 (fr) 2014-07-03

Family

ID=47850732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/089966 WO2014101711A1 (fr) 2012-12-25 2013-12-19 Structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné

Country Status (2)

Country Link
CN (1) CN102976312B (fr)
WO (1) WO2014101711A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115212670A (zh) * 2022-06-29 2022-10-21 成都易态科技有限公司 工业窑炉烟气净化装置及黄磷烟气净化系统

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102976312B (zh) * 2012-12-25 2014-10-29 潍坊联兴新材料科技股份有限公司 一种提高煅后焦换热器寿命的换热器结构
CN104697342B (zh) * 2013-12-09 2017-08-15 沈阳铝镁设计研究院有限公司 罐式煅烧炉u型敞开式循环冷却系统及冷却方法
CN103615903B (zh) * 2013-12-19 2015-05-27 潍坊联兴新材料科技股份有限公司 石油焦罐式煅烧炉水冷式炉底板
CN104006663B (zh) * 2014-06-12 2015-07-15 济南中海炭素有限公司 无烟煤或石油焦煅烧后物料冷却装置
CN109405564A (zh) * 2017-08-17 2019-03-01 沈阳铝镁设计研究院有限公司 一种罐式炉煅烧焦的余热回收装置
CN110553512B (zh) * 2018-05-30 2020-12-04 沈阳铝镁设计研究院有限公司 一种提高冷却水套使用寿命的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010133A (ja) * 2004-06-23 2006-01-12 Taisei Corp 構造体としての基礎杭を利用した熱交換システムにおける熱交換用配管の設置機構
CN101362951A (zh) * 2008-09-04 2009-02-11 潍坊联兴炭素有限公司 石油焦罐式煅烧炉冷却水套
CN201627626U (zh) * 2009-10-27 2010-11-10 浙江吉利汽车研究院有限公司 发动机排气歧管
CN102288041A (zh) * 2011-07-05 2011-12-21 山东理工大学 石油焦罐式煅烧炉排料冷却装置
CN102976312A (zh) * 2012-12-25 2013-03-20 潍坊联兴炭素有限公司 一种提高煅后焦换热器寿命的换热器结构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6089691A (ja) * 1983-10-21 1985-05-20 Asahi Glass Co Ltd 熱交換体保持構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010133A (ja) * 2004-06-23 2006-01-12 Taisei Corp 構造体としての基礎杭を利用した熱交換システムにおける熱交換用配管の設置機構
CN101362951A (zh) * 2008-09-04 2009-02-11 潍坊联兴炭素有限公司 石油焦罐式煅烧炉冷却水套
CN201627626U (zh) * 2009-10-27 2010-11-10 浙江吉利汽车研究院有限公司 发动机排气歧管
CN102288041A (zh) * 2011-07-05 2011-12-21 山东理工大学 石油焦罐式煅烧炉排料冷却装置
CN102976312A (zh) * 2012-12-25 2013-03-20 潍坊联兴炭素有限公司 一种提高煅后焦换热器寿命的换热器结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115212670A (zh) * 2022-06-29 2022-10-21 成都易态科技有限公司 工业窑炉烟气净化装置及黄磷烟气净化系统
CN115212670B (zh) * 2022-06-29 2023-07-04 成都易态科技有限公司 工业窑炉烟气净化装置及黄磷烟气净化系统

Also Published As

Publication number Publication date
CN102976312A (zh) 2013-03-20
CN102976312B (zh) 2014-10-29

Similar Documents

Publication Publication Date Title
WO2014101711A1 (fr) Structure d'échangeur thermique destinée à prolonger la durée de vie utile d'un échangeur thermique à coke calciné
CN200993379Y (zh) 一种膜式烟罩结构
CN211947175U (zh) 一种海绵钛生产反应器用分体式过道
CN202092148U (zh) 组合式烟气热能回收塔
WO2014101710A1 (fr) Système de circulation de vapeur-eau utilisant la chaleur perdue de coke calciné à haute température, produite par un four de calcination à pot
CN201242875Y (zh) 一种用于钠冷快堆的堆顶固定屏蔽装置
CN203963991U (zh) 组合型空气预热器
CN104831089B (zh) 一种用于海绵钛还原蒸馏生产的串联炉装置
CN216592289U (zh) 一种基于塔式太阳能聚光的熔盐射流吸热器
CN210110718U (zh) 一种应用于半导体废气处理设备的废气反应腔体
CN211005986U (zh) 一种便于清理的定型机能量管理装置
CN209244615U (zh) 一种汽轮机低压缸冷却装置
CN107267707B (zh) 一种转炉水冷炉口及其制备工艺
CN220852093U (zh) 立式蒸汽发生器
CN206989721U (zh) 一种水泥回转窑余热回收装置
CN113801974A (zh) 一种转炉煤气冷却装置及应用该装置的冷却系统
CN109954451A (zh) 一种用于银法甲醛生产的反应器
CN219867922U (zh) 一种废液焚烧炉的节能保温结构
CN212583829U (zh) 一种发动机气缸盖
CN215002855U (zh) 一种用于消除热应力的回转窑烟管结构
CN214023977U (zh) 一种医疗用钎焊的隔热屏
CN219954370U (zh) 一种长寿微水节能热风阀阀体
CN215446531U (zh) 高温空气预热器夹套支撑环式冷风保护系统
CN214700647U (zh) 一种高压加热器安装结构
CN109374625B (zh) 一种等离子体火炬射流监测装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13868492

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: IDP00201504420

Country of ref document: ID

122 Ep: pct application non-entry in european phase

Ref document number: 13868492

Country of ref document: EP

Kind code of ref document: A1