WO2011069332A1 - Structure de support permettant l'expansion libre d'un dispositif de retour de matériau et d'une jambe de retour de matériau - Google Patents

Structure de support permettant l'expansion libre d'un dispositif de retour de matériau et d'une jambe de retour de matériau Download PDF

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Publication number
WO2011069332A1
WO2011069332A1 PCT/CN2010/001977 CN2010001977W WO2011069332A1 WO 2011069332 A1 WO2011069332 A1 WO 2011069332A1 CN 2010001977 W CN2010001977 W CN 2010001977W WO 2011069332 A1 WO2011069332 A1 WO 2011069332A1
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WO
WIPO (PCT)
Prior art keywords
steel plate
steel
smooth
return
frame
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.)
Ceased
Application number
PCT/CN2010/001977
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English (en)
Chinese (zh)
Inventor
尹双林
刘义
郑海英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Boiler Works Co Ltd
Original Assignee
Shanghai Boiler Works Co Ltd
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 Shanghai Boiler Works Co Ltd filed Critical Shanghai Boiler Works Co Ltd
Publication of WO2011069332A1 publication Critical patent/WO2011069332A1/fr
Priority to ZA2011/05412A priority Critical patent/ZA201105412B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24—Supporting, suspending or setting arrangements, e.g. heat shielding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories

Definitions

  • Support structure capable of freely expanding the returning device and the returning leg
  • the present invention relates to a support structure, and more particularly to a support structure for uniformly transferring the load of the return feeder and the return leg to the steel frame and allowing it to freely expand.
  • the returning device is an important component in the material circulation system of the circulating fluidized bed boiler. Its function is as follows: First, the solid material separated from the separator is sent back to the furnace for combustion, and the second is to prevent the flue gas in the furnace from collapsing. Splitter. In the current technology, the "U" shape reclaimer is the most widely used one.
  • the regenerator is mainly composed of a material drop pipe, a material riser pipe and a return leg.
  • both the return leg and the returning device When the boiler is running, both the return leg and the returning device will expand outward. However, due to various reasons such as on-site installation, the amount of expansion may be different, so that there will be a difference between the returning device and the returning leg. The difference in expansion. If no measures are taken to absorb this differential expansion, the weld at the joint between the two will be cracked.
  • the existing reclaimer is supported in two parts: the return leg load is transmitted to the boiler steel frame through a cantilever structure; the return load is transmitted to the steel plate welded to the frame through the frame, and the steel plate rests on the steel frame of the boiler. No welding is applied to the steel frame of the boiler. When expansion occurs, the steel plate is slid on the boiler steel frame to adjust the position, and the horizontal differential expansion is absorbed.
  • a plurality of limiting devices are additionally mounted on the steel frame, so that the returning device and the returning leg supporting device do not have safety problems due to excessive sliding.
  • the object of the present invention is to provide a support structure for freely expanding the returning device and the returning leg, which can uniformly transfer the load of the returning device and the returning leg to the steel frame, and can freely expand and solve the returning material.
  • the technical solution of the present invention provides a reclaimer and a return leg.
  • a freely expanding support structure comprising a first steel plate and a second steel plate having a self-lubricating material layer on the surface, wherein the first steel plate and the second steel plate are respectively disposed on a steel frame of the boiler;
  • the utility model further includes a returning frame fixedly connected with the returning device, a returning leg bracket fixedly connected with the returning leg, and a fixed connection with the returning device frame and the returning leg support respectively a number of smooth steel plates;
  • the returner frame is placed on the first steel plate by the plurality of smooth steel plates; the return leg support is placed on the second steel plate by the plurality of smooth steel plates;
  • the smooth surface of the plurality of smooth steel sheets is opposed to and in contact with the self-lubricating material layer on the surface of the first steel sheet and the second steel sheet, so that the smooth steel sheet can slide on the first steel sheet and the second steel sheet.
  • the return leg bracket includes a plurality of annular steel plates sleeved on a side of the return leg, and a plurality of reinforcing ribs vertically connecting adjacent the annular steel plates.
  • a plurality of the smooth steel plates are respectively fixedly disposed under the annular steel plate at the bottom of the return leg bracket.
  • the retractor frame includes a plurality of support beams; the support beams are fixedly coupled to the sides of the reclaimer, respectively.
  • a plurality of the smooth steel plates are correspondingly disposed on the bottom surfaces of the plurality of support beams of the return feeder frame.
  • the smooth steel plate has a smooth surface facing downward; the self-lubricating material layer is disposed on a top surface of the first steel plate and the second steel plate.
  • the support structure for freely expanding the returning device and the returning leg further includes a plurality of first limiting devices disposed on the boiler steel frame around the first steel plate.
  • the support structure for freely expanding the returning device and the returning leg further comprises a plurality of second limiting devices disposed on the boiler steel frame around the second steel plate.
  • the heights of the first and second limiting devices are matched with the heights of the smooth steel plates placed on the first and second steel plates respectively to limit the sliding range of the smooth steel plate.
  • the support structure of the present invention which can freely expand the returning device and the returning leg has the advantages that: the returning device and the returning leg of the invention pass through the smooth steel plate and the self-lubricating material
  • the steel plate of the layer can slide relative to the steel frame of the boiler; once the two sides have a difference in the horizontal direction, the difference can be absorbed by the free sliding adjustment position, thereby effectively solving the weld between the returning device and the returning leg.
  • the return leg and the returning device adopt independent multi-point support, that is, from the bottom surface of the return leg bracket Supporting the points and supporting from the bottom surfaces of the plurality of support beams of the return frame, so that the load on each support point is relatively low; and the self-lubricating material on the steel plate is greatly reduced between the smooth steel plate and the smooth steel plate The sliding friction further improves the sliding effect of the returning device and the returning leg on the steel frame of the boiler.
  • FIG. 1 is a schematic view showing an independent multi-point sliding support structure for a returning device and a returning leg of the present invention
  • FIG. 2 is an enlarged view of the CC position of the returning leg support structure of the present invention in FIG. 1;
  • the structure of the invention for the return leg support is shown in the EE direction in FIG. 2;
  • Figure 4 is a D-D view of the structure of the present invention for the feeder support in Figure 1;
  • Figure 5 is a cross-sectional view of the structure of the present invention for the feeder support in the F-F direction of Figure 4;
  • Fig. 6 is a view showing the structure of a steel sheet with a self-lubricating material layer in a returning device and a return leg supporting structure in the present invention. The best way to implement the invention
  • the support structure for freely expanding the returning device 10 and the return leg 11 of the present invention is an independent multi-point sliding support structure for the returning device 10 and the returning leg 11.
  • the return leg 11 is fixedly coupled to an annular return leg bracket 30.
  • the return leg bracket 30 includes upper and lower annular steel plates 31 sleeved on the side of the return leg 11 and a plurality of reinforcing ribs 32 perpendicularly connecting the two annular steel plates 31.
  • the annular leg steel plate 31 located at the lower side of the return leg bracket 30 has a plurality of positions on the bottom surface thereof, and a smooth steel plate 40 is welded and fixed.
  • the smooth steel plate 40 is placed on the second steel plate 52 with the self-lubricating material layer 53 provided on the boiler steel frame 50, and the load of the return leg 11 on the smooth steel plate 40 is transmitted to the boiler steel frame 50.
  • the smooth surface of the smooth steel plate 40 faces downward and is in contact with the self-lubricating material (Fig. 6) on the top surface of the second steel plate 52, so that the frictional resistance is small, and the returning leg 11 is facilitated to pass during expansion.
  • the return leg bracket 30 and the smooth steel plate 40 are slid on the steel plate with the self-lubricating material layer 53 to perform position adjustment.
  • a plurality of second limiting devices 62 are respectively disposed on the boiler steel frame 50 around the second steel plate 52. As shown in FIG. 3, two of the second limiting devices 62 are The opposite sides of the second steel plate 52 are disposed. The height of the second limiting device 62 matches the height of the smooth steel plate 40 placed on the second steel plate 52 to limit the sliding range of the smooth steel plate 40.
  • the supporting device of the ejector 10 includes a ejector frame 20; the ejector frame 20 is provided with a plurality of supporting beams 21 And fixedly connected to the side of the ejector 10 respectively.
  • Each of the support beams 21 of the ejector frame 20 is fastened to the smooth steel plate 40 at its bottom surface.
  • the smooth steel plate 40 is placed on the first steel plate 51 (Fig. 6) of the boiler steel frame 50 with the self-lubricating material layer 53 to transfer the load of the return feeder 10 to the boiler steel frame 50.
  • the smooth surface of the smooth steel plate 40 faces downward, and is opposite to the self-lubricating material on the top surface of the first steel plate 51, and reduces the sliding of the ejector 10 through the ejector frame 20 and the smooth steel plate 40 when the ejector 10 is expanded. Frictional resistance.
  • first limiting means 61 are respectively disposed around the first steel plate 51 on the boiler steel frame 50.
  • two of the first limiting devices 61 are disposed on adjacent sides of the first steel plate 51.
  • the height of the first limiting device 61 matches the height of the smooth steel plate 40 placed on the first steel plate 51 to limit the sliding range of the smoothing steel plate 40.
  • the self-lubricating material provided on the top surfaces of the first and second steel plates can use SF-1 type material, and has good wear resistance and small friction coefficient, thereby effectively reducing the first and the first Sliding friction between the two steel plates and the smooth steel plate 40.
  • the smoothing steel plate 40 of the returning leg 11 is supported on the first steel plate 51,
  • the support surfaces of the smooth steel sheets 40 of the hopper 10 on the second steel sheet 52 are on the same level of height.
  • the returning device and the returning leg can be relatively slid on the steel frame of the boiler through the smooth steel plate and the steel plate with the layer of self-lubricating material; once the two have a differential expansion in the horizontal direction, the can pass The free sliding adjustment position absorbs the differential expansion, thereby effectively solving the problem of weld cracking between the returning device and the returning leg.
  • the return leg and the returning device adopt independent multi-point support, that is, support from multiple points on the bottom surface of the return leg bracket, and support from the bottom surface of the plurality of support beams of the return frame, so that each support point is
  • the load is relatively low; with the self-lubricating material on the steel plate, it is greatly reduced with smooth steel
  • the sliding friction between the plates further improves the sliding effect of the returning and returning legs on the steel frame of the boiler.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

Une structure de support permettant l'expansion libre d'un dispositif de retour de matériau (10) et d'une jambe de retour de matériau (11) comprend une structure de dispositif de retour de matériau (20) raccordée fixement au dispositif de retour de matériau (10), un support de jambe de retour de matériau (30) raccordé fixement à la jambe de retour de matériau (11), plusieurs plaques d'acier lisses (40) raccordées fixement à la structure de dispositif de retour de matériau (20) et au support de jambe de retour de matériau (30), respectivement, ainsi qu'une première plaque d'acier (51) et une seconde plaque d'acier (52) comprenant des couches de matériau autolubrifiantes (53) sur leurs surfaces. La première plaque d'acier (51) et la seconde plaque d'acier (52) sont disposées sur un châssis de chaudière en acier (50), respectivement. La structure de dispositif de retour de matériau (20) est placée sur la première plaque d'acier (51) au moyen de plusieurs plaques d'acier lisses (40), et le support de jambe de retour de matériau (30) est placé sur la seconde plaque d'acier (52) au moyen de plusieurs plaques d'acier lisses (40). Les surfaces lisses des plaques d'acier lisses (40) sont placées en direction et au contact de couches de matériau autolubrifiantes (53) sur les surfaces de la première plaque d'acier (51) et de la seconde plaque d'acier (52), de sorte que les plaques d'acier lisses (40) puissent coulisser sur la première plaque d'acier (51) et la seconde plaque d'acier (52). Le dispositif de retour de matériau (10) et la jambe de retour de matériau (11) sont supportés indépendamment sur des points multiples de manière coulissante, et la différence d'expansion entre eux dans une direction horizontale peut par conséquent être éliminée.
PCT/CN2010/001977 2009-12-09 2010-12-07 Structure de support permettant l'expansion libre d'un dispositif de retour de matériau et d'une jambe de retour de matériau Ceased WO2011069332A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2011/05412A ZA201105412B (en) 2009-12-09 2011-07-22 A supporting structure which realizes the free expansion of feedback unit and return leg

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009202128254U CN201606863U (zh) 2009-12-09 2009-12-09 一种可使回料器与回料腿自由膨胀的支撑结构
CN200920212825.4 2009-12-09

Publications (1)

Publication Number Publication Date
WO2011069332A1 true WO2011069332A1 (fr) 2011-06-16

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PCT/CN2010/001977 Ceased WO2011069332A1 (fr) 2009-12-09 2010-12-07 Structure de support permettant l'expansion libre d'un dispositif de retour de matériau et d'une jambe de retour de matériau

Country Status (4)

Country Link
CN (1) CN201606863U (fr)
TR (1) TR201107771T1 (fr)
WO (1) WO2011069332A1 (fr)
ZA (1) ZA201105412B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201606863U (zh) * 2009-12-09 2010-10-13 上海锅炉厂有限公司 一种可使回料器与回料腿自由膨胀的支撑结构
CN105509026A (zh) * 2015-06-10 2016-04-20 无锡华光锅炉股份有限公司 一种用于锅炉省煤器支撑梁的滑动支承结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01184301A (ja) * 1988-01-19 1989-07-24 Mitsubishi Heavy Ind Ltd 循環流動床ボイラ
CN1079284A (zh) * 1992-03-03 1993-12-08 西门子公司 蒸汽发生器在支承结构中的配置
JP2001263635A (ja) * 2000-03-23 2001-09-26 Mitsubishi Heavy Ind Ltd 循環型流動層炉
CN101169242A (zh) * 2006-10-25 2008-04-30 中国科学院工程热物理研究所 循环流化床锅炉多点返料器
CN201255404Y (zh) * 2008-07-23 2009-06-10 华西能源工业股份有限公司 一种以纯石油焦为燃料的锅炉的回料装置
CN201606863U (zh) * 2009-12-09 2010-10-13 上海锅炉厂有限公司 一种可使回料器与回料腿自由膨胀的支撑结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01184301A (ja) * 1988-01-19 1989-07-24 Mitsubishi Heavy Ind Ltd 循環流動床ボイラ
CN1079284A (zh) * 1992-03-03 1993-12-08 西门子公司 蒸汽发生器在支承结构中的配置
JP2001263635A (ja) * 2000-03-23 2001-09-26 Mitsubishi Heavy Ind Ltd 循環型流動層炉
CN101169242A (zh) * 2006-10-25 2008-04-30 中国科学院工程热物理研究所 循环流化床锅炉多点返料器
CN201255404Y (zh) * 2008-07-23 2009-06-10 华西能源工业股份有限公司 一种以纯石油焦为燃料的锅炉的回料装置
CN201606863U (zh) * 2009-12-09 2010-10-13 上海锅炉厂有限公司 一种可使回料器与回料腿自由膨胀的支撑结构

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Publication number Publication date
TR201107771T1 (tr) 2012-03-21
ZA201105412B (en) 2012-09-26
CN201606863U (zh) 2010-10-13

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