WO2023104003A1 - 一种干熄焦循环风机的叶轮叶片及干熄焦循环风机 - Google Patents

一种干熄焦循环风机的叶轮叶片及干熄焦循环风机 Download PDF

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WO2023104003A1
WO2023104003A1 PCT/CN2022/136754 CN2022136754W WO2023104003A1 WO 2023104003 A1 WO2023104003 A1 WO 2023104003A1 CN 2022136754 W CN2022136754 W CN 2022136754W WO 2023104003 A1 WO2023104003 A1 WO 2023104003A1
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plug welding
blade
welding holes
impeller
holes
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PCT/CN2022/136754
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English (en)
French (fr)
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刘昭
魏立峰
石立明
郭宁
段东锋
张维亮
辛小庆
王引珠
贾一闻
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西安陕鼓通风设备有限公司
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Publication of WO2023104003A1 publication Critical patent/WO2023104003A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades

Definitions

  • the utility model relates to a dry coke quenching coke oven device, in particular to an impeller blade of a dry coke quenching circulation fan and a dry coke quenching circulation fan.
  • the impeller is the core component of the CDQ circulating fan.
  • the performance and life of the CDQ circulating fan largely depend on the design and manufacture of the impeller. As the linear speed of the impeller has increased rapidly in recent years, the wear of the impeller has also accelerated. , so it is particularly important to analyze the wear of the impeller and to study the measures to prevent wear.
  • the wear of the impeller is mainly abrasive wear, that is, the solid particles in the CDQ circulating fan act on the impeller blades at a certain speed and cause the surface material to fall off.
  • This utility model is to solve the problem that the wear-resistant liner installed on the impeller blade of the existing CDQ circulation fan has uneven force on the solder joints and uneven heating during welding, resulting in a gap between the wear-resistant liner and the impeller blade. Gap is generated, resulting in insufficient wear of impeller blades, and an impeller blade of a CDQ circulation fan and a CDQ circulation fan are provided.
  • An impeller blade of a CDQ circulating fan the impeller blade is welded with a wear-resistant liner through plug welding holes, and its special feature is that the plug welding holes are arranged according to the following principles:
  • the plug welding holes are arranged in a row-column matrix on the blade, one column along the centerline of the blade, and the other columns are symmetrically arranged on both sides of the centerline of the blade;
  • the lateral distance between the plug welding hole closest to the blade wheel cover side and the blade wheel cover side is not less than B, and the value range of B is 70 ⁇ 90mm;
  • the value range of A is 70-100 mm; the value range of C is 145-155 mm; the value range of D is 95-105 mm; and the value range of B is 75-85 mm.
  • the diameter of the plug welding hole is (0.25-0.35)D.
  • the diameter of the plug welding hole is 30mm.
  • the utility model also provides a coke CDQ circulating fan, which includes a rotor shaft, an impeller arranged on the rotor shaft, and support bearings arranged at both ends of the rotor shaft; The impeller blade of a coke CDQ circulation fan described in one.
  • the diameter of the impeller is 2000mm.
  • the support bearing is a dynamic pressure sliding bearing
  • the bearing bush of the dynamic pressure sliding bearing adopts a self-lubricating structure
  • its oil seal assembly includes an oil throwing ring, a rubber ring and a comb-tooth sealing structure.
  • the utility model discloses an impeller blade of a CDQ circulating fan, which is connected with a wear-resistant liner through plug welding; the plug welding holes are evenly distributed on the impeller blade, so that each The force around each plug welding hole is equal, and the stress will not be generated due to the uneven force of the connection point, thereby avoiding the gap between the impeller blade and the wear-resistant liner; and the plug welding holes are distributed in a matrix.
  • the center point of each rectangular area in the matrix is equidistant from the four vertices to ensure that each matrix is heated evenly during welding, avoiding local deformation caused by instantaneous thermal effects;
  • the impeller blades have better wear resistance and longer service life.
  • the most rational layout of the plug welding holes can be realized without affecting the strength of the impeller blade itself under the limited space of the impeller blade.
  • Fig. 1 is a structural schematic diagram of an embodiment of an impeller blade of a coke CDQ circulating fan of the present invention.
  • a coke dry quenching circulating fan includes a rotor shaft, an impeller arranged on the rotor shaft, a wear-resistant liner, and support bearings arranged at both ends of the rotor shaft.
  • an impeller blade of a CDQ circulating fan the impeller blade is welded with a wear-resistant liner through plug welding holes, and the plug welding holes are arranged according to the following principles.
  • 1 is the blade outlet end
  • 2 is the inlet end of the blade
  • 3 is the side of the blade wheel cover
  • 4 is the side of the blade wheel:
  • the plug welding holes are arranged in a row-column matrix on the blade, one column along the centerline of the blade, and the other columns are symmetrically arranged on both sides of the centerline of the blade;
  • the lateral distance between the plug welding hole closest to the blade wheel cover side and the blade wheel cover side is not less than B, and the value range of B is 70 ⁇ 90mm;
  • the value of A is 80mm; the value of C is 150mm; the value of D is 100mm; the value of B is 80mm.
  • the utility model also discloses a CDQ circulating fan, which includes a rotor shaft, an impeller arranged on the rotor shaft, and support bearings arranged at both ends of the rotor shaft. is 2000mm, and the diameter of the plug welding hole is 30mm.
  • the supporting bearing adopts DODGE RTL dynamic pressure bearing with seat, and its bearing shell adopts self-lubricating structure.
  • the CDQ circulating fan does not need to be equipped with a lubricating oil station to provide additional lubrication and oil supply during operation;
  • the supporting bearing oil seal assembly includes The oil slinger, rubber ring and comb seal structure, the oil seal assembly can not only effectively prevent the oil leakage of the bearing, but also prevent external dust from entering the inside of the fan bearing, and avoid burning of the bearing bush.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种干熄焦循环风机的叶轮叶片及包括该叶轮叶片的干熄焦循环风机。该叶轮叶片与耐磨衬板之间通过塞焊孔塞焊方式连接，塞焊孔在叶片上按行列矩阵方式排列，沿叶片中心线为一列，其余各列在叶片中心线两侧对称排布，每列塞焊孔中距叶片进口端最近的一个塞焊孔，与进口端外缘的垂直距离均为A，每列塞焊孔中塞焊孔的间距均为C，相邻两列塞焊孔交错排布，两列塞焊孔之间的间距为D，其中一列塞焊孔中的每个塞焊孔与另一列塞焊孔中的相邻塞焊孔距离均相等，距叶片轮盖侧最近的塞焊孔，与叶片轮盖侧的横向距离不小于B，距叶片出口端及叶片轮盖侧最近的一个塞焊孔，与叶片出口端的垂直距离为B，与叶片轮盖侧的横向距离为B，其中A、B、C、D分别具有各自的取值范围。该叶轮叶片避免焊接时受热不均，且不影响叶轮叶片自身强度。

Description

一种干熄焦循环风机的叶轮叶片及干熄焦循环风机 技术领域
本实用新型涉及干法熄焦焦炉装置，具体涉及一种干熄焦循环风机的叶轮叶片及干熄焦循环风机。
背景技术
叶轮是干熄焦循环风机的核心部件，干熄焦循环风机的性能和寿命很大程度上取决于叶轮的设计和制造，由于近年来叶轮的线速度提高很快，叶轮磨损程度也随之加快，因此对叶轮的磨损分析及磨损防止措施研究显得尤为重要。叶轮的磨损主要是磨料磨损，即干熄焦循环风机中的固体颗粒以一定速度作用于叶轮叶片而引起表面材料脱落。
由于减少干熄焦循环风机内部粉尘(固体颗粒)需对干熄焦循环风机运行系统进行改造，成本较高，且实现困难，因此目前干熄焦循环风机通常采取对叶轮叶片加焊一层耐磨衬板的措施来强化叶轮的耐磨性。由于叶轮叶片形状复杂，焊点的分布决定了耐磨衬板与叶轮叶片之间的连接力，焊点受力不均会导致应力的产生，进而导致耐磨衬板与叶轮叶片之间产生缝隙；此外，耐磨衬板与叶轮叶片焊接时会产生瞬时热效应，而导致耐磨衬板与叶轮叶片局部形变产生缝隙；耐磨衬板与叶轮叶片之间缝隙会造成叶轮叶片磨损，进而影响叶轮使用寿命。
实用新型内容
本实用新型的目的是解决现有干熄焦循环风机叶轮叶片上所设置的耐磨衬板由于存在焊点受力不均、焊接时受热不均，而导致耐磨衬板与叶轮叶片 之间产生缝隙，造成叶轮叶片磨损的不足之处，而提供一种干熄焦循环风机的叶轮叶片及干熄焦循环风机。
为了解决上述现有技术所存在的不足之处，本实用新型提供了如下技术解决方案：
一种干熄焦循环风机的叶轮叶片，所述叶轮叶片上通过塞焊孔塞焊方式焊接有耐磨衬板，其特殊之处在于，所述塞焊孔按以下原则排布：
(1)塞焊孔在叶片上按行列矩阵方式排列，沿叶片中心线为一列，其余各列在叶片中心线两侧对称排布；
(2)每列塞焊孔中距叶片进口端最近的一个塞焊孔，与进口端外缘的垂直距离均为A，A的取值范围为50～120mm；
(3)每列塞焊孔中塞焊孔的间距均为C，C的取值范围为140～160mm；
(4)相邻两列塞焊孔交错排布，两列塞焊孔之间的间距为D，D的取值范围为90～110mm；其中一列塞焊孔中的每个塞焊孔与另一列塞焊孔中的相邻塞焊孔距离均相等；
(5)距叶片轮盖侧最近的塞焊孔，与叶片轮盖侧的横向距离不小于B，B的取值范围为70～90mm；
(6)距叶片出口端及叶片轮盖侧最近的一个塞焊孔，与叶片出口端的垂直距离为B，与叶片轮盖侧的横向距离为B；
(7)若某一列塞焊孔中有部分塞焊孔与叶片轮盖侧的横向距离大于等于B+D，则在该列塞焊孔与叶片轮盖侧之间区域增加一列塞焊孔。
进一步地，A取值范围为70～100mm；C取值范围为145～155mm；D取值范围为95～105mm；B取值范围为75～85mm。
进一步地，所述塞焊孔的直径为(0.25-0.35)D。
进一步地，所述塞焊孔的直径为30mm。
本实用新型还提供一种干熄焦循环风机，包括转子轴、设置在转子轴上的叶轮、设置在转子轴两端的支撑轴承；其特殊之处在于：所述叶轮采用权利要求1至4任一所述的一种干熄焦循环风机的叶轮叶片。
进一步地，所述叶轮的直径为2000mm。
进一步地，所述支撑轴承为动压滑动轴承，动压滑动轴承的轴瓦采用自润滑结构，其油封组件包括甩油环、橡胶圈和梳齿密封结构。
与现有技术相比，本实用新型的有益效果是：
本实用新型公开了一种干熄焦循环风机的叶轮叶片，其与耐磨衬板之间通过塞焊孔塞焊方式连接；所述塞焊孔均匀分布在叶轮叶片上，使得焊接过程中每个塞焊孔四周所受的力大小相等，不会由于连接点受力不均导致应力的产生，从而避免了叶轮叶片与耐磨衬板之间产生缝隙；并且塞焊孔通过矩阵方式分布在叶片上，矩阵中每个矩形区域的中心点与四个顶点等距，确保焊接时每个矩阵受热均匀，避免了瞬时热效应造成局部形变；使得在采用相同材料、厚度的耐磨衬板的情况下，叶轮叶片耐磨性能更好，使用寿命更长。另外，在本实用新型中设定的塞焊孔排布距离下，能够在叶轮叶片的有限空间下，既不影响叶轮叶片自身强度，又能够实现塞焊孔的最合理化布局。
附图说明
图1为本实用新型一种干熄焦循环风机的叶轮叶片实施例的结构示意图。
具体实施方式
下面结合附图和示例性实施例对本实用新型作进一步地说明。
一种干熄焦循环风机，包括转子轴、设置在转子轴上的叶轮、耐磨衬板、设置在转子轴两端的支撑轴承。
参照图1，一种干熄焦循环风机的叶轮叶片，叶轮叶片上通过塞焊孔塞焊方式焊接有耐磨衬板，塞焊孔按以下原则排布，图1中①为叶片出口端，②为叶片进口端，③为叶片轮盖侧，④为叶片轮盘侧：
(1)塞焊孔在叶片上按行列矩阵方式排列，沿叶片中心线为一列，其余各列在叶片中心线两侧对称排布；
(2)每列塞焊孔中距叶片进口端最近的一个塞焊孔，与进口端外缘的垂直距离均为A，A的取值范围为50～120mm；
(3)每列塞焊孔中塞焊孔的间距均为C，C的取值范围为140～160mm；
(4)相邻两列塞焊孔交错排布，两列塞焊孔之间的间距为D，D的取值范围为90～110mm；其中一列塞焊孔中的每个塞焊孔与另一列塞焊孔中的相邻塞焊孔距离均相等；
(5)距叶片轮盖侧最近的塞焊孔，与叶片轮盖侧的横向距离不小于B，B的取值范围为70～90mm；
(6)距叶片出口端及叶片轮盖侧最近的一个塞焊孔，与叶片出口端的垂直距离为B，与叶片轮盖侧的横向距离为B；
(7)若某一列塞焊孔中有部分塞焊孔与叶片轮盖侧的横向距离大于等于B+D，则在该列塞焊孔与叶片轮盖侧之间区域增加一列塞焊孔。
其中，A取值为80mm；C取值为150mm；D取值为100mm；B取值为80mm。
本实用新型还公开一种干熄焦循环风机，包括转子轴、设置在转子轴上的叶轮、设置在转子轴两端的支撑轴承，该干熄焦循环风机叶轮采用上述叶 轮叶片，其中叶轮的直径为2000mm，塞焊孔的直径为30mm。
本实施例中，支撑轴承采用DODGE RTL带座动压轴承，其轴瓦采用自润滑结构，干熄焦循环风机在运转过程中不需要配备润滑油站进行额外提供润滑供油；支撑轴承油封组件包括甩油环、橡胶圈和梳齿密封结构，该油封组件既能有效的防止轴承漏油，又能防止外部灰尘进入风机轴承内部，避免轴瓦的烧毁。
以上实施例仅用以说明本实用新型的技术方案，而非对其限制，对于本领域的普通专业技术人员来说，可以对前述各实施例所记载的具体技术方案进行修改，或者对其中部分技术特征进行等同替换，而这些修改或者替换，并不使相应技术方案的本质脱离本实用新型所保护技术方案的范围。

Claims (7)

  1. 一种干熄焦循环风机的叶轮叶片，所述叶轮叶片上通过塞焊孔塞焊方式焊接有耐磨衬板，其特征在于，所述塞焊孔按以下原则排布：
    (1)塞焊孔在叶片上按行列矩阵方式排列，沿叶片中心线为一列，其余各列在叶片中心线两侧对称排布；
    (2)每列塞焊孔中距叶片进口端最近的一个塞焊孔，与进口端外缘的垂直距离均为A，A的取值范围为50～120mm；
    (3)每列塞焊孔中塞焊孔的间距均为C，C的取值范围为140～160mm；
    (4)相邻两列塞焊孔交错排布，两列塞焊孔之间的间距为D，D的取值范围为90～110mm；其中一列塞焊孔中的每个塞焊孔与另一列塞焊孔中的相邻塞焊孔距离均相等；
    (5)距叶片轮盖侧最近的塞焊孔，与叶片轮盖侧的横向距离不小于B，B的取值范围为70～90mm；
    (6)距叶片出口端及叶片轮盖侧最近的一个塞焊孔，与叶片出口端的垂直距离为B，与叶片轮盖侧的横向距离为B；
    (7)若某一列塞焊孔中有部分塞焊孔与叶片轮盖侧的横向距离大于等于B+D，则在该列塞焊孔与叶片轮盖侧之间区域增加一列塞焊孔。
  2. 根据权利要求1所述的一种干熄焦循环风机的叶轮叶片，其特征在于：A取值范围为70～100mm；C取值范围为145～155mm；D取值范围为95～105mm；B取值范围为75～85mm。
  3. 根据权利要求2所述的一种干熄焦循环风机的叶轮叶片，其特征在于：所述塞焊孔的直径为(0.25-0.35)D。
  4. 根据权利要求3所述的一种干熄焦循环风机的叶轮叶片，其特征在于：所述塞焊孔的直径为30mm。
  5. 一种干熄焦循环风机，包括转子轴、设置在转子轴上的叶轮、设置在转子轴两端的支撑轴承；其特征在于：所述叶轮采用权利要求1至4任一所述的一种干熄焦循环风机的叶轮叶片。
  6. 根据权利要求5所述的一种干熄焦循环风机，其特征在于：所述叶轮的直径为2000mm。
  7. 根据权利要求6所述的一种干熄焦循环风机，其特征在于：所述支撑轴承为动压滑动轴承，动压滑动轴承的轴瓦采用自润滑结构，其油封组件包括甩油环、橡胶圈和梳齿密封结构。
PCT/CN2022/136754 2021-12-07 2022-12-06 一种干熄焦循环风机的叶轮叶片及干熄焦循环风机 WO2023104003A1 (zh)

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