WO2023284078A1 - System and method for manually turning low-pressure rotor of steam turbine - Google Patents
System and method for manually turning low-pressure rotor of steam turbine Download PDFInfo
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- WO2023284078A1 WO2023284078A1 PCT/CN2021/115579 CN2021115579W WO2023284078A1 WO 2023284078 A1 WO2023284078 A1 WO 2023284078A1 CN 2021115579 W CN2021115579 W CN 2021115579W WO 2023284078 A1 WO2023284078 A1 WO 2023284078A1
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- steam turbine
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- pressure rotor
- sling
- cranking
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004677 Nylon Substances 0.000 claims description 19
- 229920001778 nylon Polymers 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/34—Turning or inching gear
Definitions
- the invention belongs to the technical field of steam turbines, and in particular relates to a manual barring system and method for a low-pressure rotor of a steam turbine.
- the steam turbine low-pressure rotor is a combination of steam turbine rotating parts such as the main shaft, impeller or drum, moving blades and couplings.
- steam turbine rotating parts such as the main shaft, impeller or drum, moving blades and couplings.
- the repair process it is necessary to bar the low-pressure rotor of the steam turbine at any time.
- the current manual The turning method is mainly to utilize methods such as driving around the rope and manually dragging the blades. There is a serious potential safety hazard when using the driving to wind the rope, and the driving needs to cooperate at any time, and the efficiency is extremely low.
- the purpose of the present invention is to provide a manual turning system and method for the low-pressure rotor of a steam turbine, which ensures that the rotor will not be damaged during the turning process, and greatly improves the maintenance efficiency.
- a manual cranking system for the low-pressure rotor of a steam turbine including a column pin, a first sling, an inverted chain, a second sling and a stressed anchor point, wherein one end of the first sling Connect the column pin, and the other end is connected to the inverted chain; one end of the second sling is connected to the stressed anchor point, the other end is connected to the inverted chain, and the inverted chain is suspended in the air.
- the column pin is used to connect the low-pressure rotor of the steam turbine, and the first sling is wound around the low-pressure rotor of the steam turbine.
- a groove is provided at the place where the column pin is connected to the first sling, and a fastener is arranged at the groove.
- the first suspenders and the second suspenders adopt flat steel wire belts, nylon ropes or steel wire ropes.
- Anchor bolts and existing equipment foundations are used as anchor points for stress.
- the first sling is connected with the pin after being wound around the low-pressure rotor of the steam turbine for several turns.
- the force anchor point is located on the side of the low pressure rotor of the steam turbine.
- the winding direction of the nylon rope is opposite to the winding direction of the first sling, and the nylon rope is used for decelerating when turning the car.
- the column pin is inserted into the shaft hole of the steam turbine low-pressure rotor, and the column pin, the first sling, the reverse chain, the second sling, and the force bearing are respectively connected according to the connection relationship.
- Anchor point manually pull the chain up to carry out barring, pull the first sling through the chain down, and then pull the low-pressure rotor of the steam turbine to rotate, and realize the manual barring of the low-pressure rotor of the steam turbine.
- the first sling is wound around the low-pressure rotor of the steam turbine for several turns and then connected with the pin to realize continuous cranking.
- the present invention has at least the following beneficial effects:
- the present invention proposes a manual turning system and method for the low-pressure rotor of a steam turbine, which can manually turn and brake the low-pressure rotor of a steam turbine by using the common reverse chain and nylon rope in the field, which greatly reduces the current common use of driving for turning. It avoids the deformation of the blade caused by manually pulling the blade for turning, and at the same time greatly reduces the workload and improves the work efficiency.
- the invention proposes a manual turning system and method for the low-pressure rotor of a steam turbine, which can be turned by only 1-2 people, has high safety, and is equipped with a brake system, which greatly improves the turning precision. Easy disassembly and assembly, high efficiency.
- Fig. 1 is an axial schematic diagram of an end shaft of a generator according to the present invention.
- Fig. 2 is a schematic axial view of the installation position of a cranking system without a brake system provided by the present invention.
- Fig. 3 is an axial schematic diagram of the installation position of a cranking system with a brake system provided by the present invention.
- a manual cranking system for the low-pressure rotor of a steam turbine includes a column pin 2, a first strap 3, an inverted chain 4, a second strap 6, and a stressed anchor point 5, wherein one end of the first strap 3 Connect the column pin 2, and the other end is connected to the inverted chain 4; one end of the second sling 6 is connected to the force anchor point 5, and the other end is connected to the inverted chain 4, and the inverted chain 4 is suspended in the air.
- the column pin 2 is used to connect the low-pressure rotor of the steam turbine, and the first sling 3 around the low-pressure rotor of the steam turbine; the column pin 2 is connected to the first strap 3 and a groove is provided, and a fastener is arranged at the groove.
- the stress anchor point 5 is located on the side of the low-pressure rotor of the steam turbine.
- first sling 3 and the second sling 6 use flat steel wire belts, nylon ropes or steel wire ropes.
- the stressed anchor point 5 adopts anchor bolts, and the anchor bolts are arranged on the ground.
- the stressed anchor point 5 is set on the basis of existing equipment.
- the first strap 3 is connected to the pin 2 after being wound around the low-pressure rotor of the steam turbine for several turns.
- a nylon rope is also connected on the column pin 2, and the winding direction of the nylon rope 7 is opposite to the winding direction of the first suspender 3, and the nylon rope 7 is used for decelerating when turning the car.
- the column pin 1 is inserted into the shaft hole of the steam turbine low-pressure rotor, and the column pin 2, the first strap 3, the reverse chain 4, the second link are respectively connected according to the connection relationship.
- the sling 6 and the stressed anchor point 5 are manually pulled back chain 4 for barring, the first sling 3 is pulled by the back chain 4, and then the low pressure rotor of the steam turbine is driven to rotate, thereby realizing the manual barring of the low pressure rotor of the steam turbine.
- the first sling 3 is wound around the low-pressure rotor of the steam turbine for several turns and then connected to the pin 2 to realize continuous cranking.
- FIG. 1 is a schematic diagram of the shaft side of the generator end shaft
- Figure 3 is a schematic diagram of the shaft side of the installation position of a cranking system with a brake system.
- the other end of the chain is hooked on the chain
- the other end of the chain is hooked on the second sling 6
- the other end of the second sling 6 is tied to the stressed anchor point, and the car can be turned by pulling the chain;
- the angle of the rotor disk is too large, causing the working area to exceed the expected position.
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A system for manually turning a low-pressure rotor of a steam turbine. The system comprises a pin (2), a first sling (3), a chain hoist (4), a second sling (6) and a force bearing anchor (5), wherein one end of the first sling (3) is connected to the pin (2), and the other end thereof is connected to the chain hoist (4); one end of the second sling (6) is connected to the force bearing anchor (5), and the other end thereof is connected to the chain hoist (4); the chain hoist (4) is suspended; the pin (2) is used to connect to a low-pressure rotor of a steam turbine; and the first sling (3) is wound around the low-pressure rotor of the steam turbine. The system reduces the risk of turning, and avoids the phenomenon of blade deformation caused by manually dragging a blade for turning; in addition, the system is provided with a brake system, and is convenient to mount and remove. Further disclosed is a method for operating the turning system.
Description
本发明属于汽轮机技术领域，具体涉及一种汽轮机低压转子手动盘车系统及方法。The invention belongs to the technical field of steam turbines, and in particular relates to a manual barring system and method for a low-pressure rotor of a steam turbine.
汽轮机低压转子是由主轴、叶轮或转鼓、动叶片和联轴器等汽轮机旋转部件组成的组合体。一般情况下，在火电厂大修期间，需要对汽轮机低压转子吊出并对存在水蚀的汽轮机低压转子叶片进行修复或喷涂，在修复过程中，就需要对汽轮机低压转子随时进行盘车，目前的手动盘车方法主要是利用行车绕绳和人工拽动叶片等方法进行。利用行车绕绳盘车时存在严重的安全隐患，并且需要行车随时配合，效率极低。利用人工拽动叶片盘车时极易使叶片变形，并且需要较多的人力，通常需要6-8人才能进行盘车，现场人员数量很难满足。另外利用以上两种方法都不能对转子进行精确盘车，容易将转子盘的角度超过自己预想的位置，存在随机性，盘车精度不够，不能满足机械化叶片修复要求。The steam turbine low-pressure rotor is a combination of steam turbine rotating parts such as the main shaft, impeller or drum, moving blades and couplings. Generally, during the overhaul period of a thermal power plant, it is necessary to lift out the low-pressure rotor of the steam turbine and repair or spray the blades of the low-pressure rotor of the steam turbine with water erosion. During the repair process, it is necessary to bar the low-pressure rotor of the steam turbine at any time. The current manual The turning method is mainly to utilize methods such as driving around the rope and manually dragging the blades. There is a serious potential safety hazard when using the driving to wind the rope, and the driving needs to cooperate at any time, and the efficiency is extremely low. It is very easy to deform the blades when manually pulling the blades to turn them, and requires more manpower. Usually, 6-8 people are needed to turn them, and the number of on-site personnel is difficult to satisfy. In addition, the above two methods cannot be used to accurately turn the rotor, and the angle of the rotor disk is easy to exceed the expected position, which is random, and the turning accuracy is not enough to meet the requirements of mechanized blade repair.
综上所述，需要开发一种汽轮机低压转子手动盘车系统及方法，保证在盘车过程中不会对转子造成损伤，并提高检修效率。To sum up, it is necessary to develop a manual cranking system and method for the low-pressure rotor of a steam turbine to ensure that the rotor will not be damaged during the cranking process and to improve the maintenance efficiency.
发明内容Contents of the invention
为解决上述技术中存在的问题，本发明目的在于提供一种汽轮机低压转子手动盘车系统及方法，保证在盘车过程中不会造成转子损伤，以及大大提高检修效率。In order to solve the problems in the above-mentioned technologies, the purpose of the present invention is to provide a manual turning system and method for the low-pressure rotor of a steam turbine, which ensures that the rotor will not be damaged during the turning process, and greatly improves the maintenance efficiency.
为达到上述目的，本发明采用的技术方案是：一种汽轮机低压转子手动盘车系统，包括柱销、第一吊带、倒链、第二吊带以及受力锚点，其中，第一吊带的一端连接柱销，另一端连接倒链；第二吊带的一端连接受力锚点，另一端连接倒链，倒链悬空，柱销用于连接汽轮机低压转子，第一吊带绕汽轮机低压转子。In order to achieve the above object, the technical solution adopted by the present invention is: a manual cranking system for the low-pressure rotor of a steam turbine, including a column pin, a first sling, an inverted chain, a second sling and a stressed anchor point, wherein one end of the first sling Connect the column pin, and the other end is connected to the inverted chain; one end of the second sling is connected to the stressed anchor point, the other end is connected to the inverted chain, and the inverted chain is suspended in the air. The column pin is used to connect the low-pressure rotor of the steam turbine, and the first sling is wound around the low-pressure rotor of the steam turbine.
柱销连接第一吊带处开设凹槽，所述凹槽处设置紧固件。A groove is provided at the place where the column pin is connected to the first sling, and a fastener is arranged at the groove.
第一吊带和第二吊带采用扁平钢丝带、尼龙绳或钢丝绳。The first suspenders and the second suspenders adopt flat steel wire belts, nylon ropes or steel wire ropes.
受力锚点采用地脚螺栓、现有设备基础。Anchor bolts and existing equipment foundations are used as anchor points for stress.
第一吊带缠绕汽轮机低压转子若干圈之后与柱销链接。The first sling is connected with the pin after being wound around the low-pressure rotor of the steam turbine for several turns.
受力锚点位于汽轮机低压转子位置的侧面。The force anchor point is located on the side of the low pressure rotor of the steam turbine.
柱销上还连接一根尼龙绳，尼龙绳的缠绕方向与第一吊带缠绕方向相反，尼龙绳用于盘车时减速。Also connect a nylon rope on the pin, the winding direction of the nylon rope is opposite to the winding direction of the first sling, and the nylon rope is used for decelerating when turning the car.
基于本发明所述系统的汽轮机低压转子手动盘车方法，将柱销插入汽轮机低压转子的轴孔中，按照所述连接关系分别连接柱销、第一吊带、倒链、第二吊带以及受力锚点，手动拉动倒链进行盘车，通过倒链拉动第一吊带，进而拉动汽轮机低压转子转动，实现汽轮机低压转子手动盘车。Based on the manual cranking method of the steam turbine low-pressure rotor of the system described in the present invention, the column pin is inserted into the shaft hole of the steam turbine low-pressure rotor, and the column pin, the first sling, the reverse chain, the second sling, and the force bearing are respectively connected according to the connection relationship. Anchor point, manually pull the chain up to carry out barring, pull the first sling through the chain down, and then pull the low-pressure rotor of the steam turbine to rotate, and realize the manual barring of the low-pressure rotor of the steam turbine.
第一吊带缠绕汽轮机低压转子若干圈之后与柱销连接，实现持续盘车。The first sling is wound around the low-pressure rotor of the steam turbine for several turns and then connected with the pin to realize continuous cranking.
当盘车速度过高或者需要停止盘车时，拉动尼龙绳实现减速或停止盘车。When the cranking speed is too high or the cranking needs to be stopped, pull the nylon rope to slow down or stop the cranking.
与现有技术相比，本发明至少具有以下有益效果：Compared with the prior art, the present invention has at least the following beneficial effects:
本发明提出的一种汽轮机低压转子手动盘车系统及方法，利用现场常见的倒链以及尼龙绳即可手动对汽轮机低压转子进行盘车和刹车，大大减小了现在常见的利用行车进行盘车的危险性，避免了人工拽动叶片进行盘车造成的叶片变形现象，同时大大减少了工作量及提高了工作效率。本发明提出的一种汽轮机低压转子手动盘车系统及方法只需1-2人即可进行盘车，安全性高，而且带有刹车系统，大大提高了盘车的精度，另外整个盘车系统拆装方便，效率极高。The present invention proposes a manual turning system and method for the low-pressure rotor of a steam turbine, which can manually turn and brake the low-pressure rotor of a steam turbine by using the common reverse chain and nylon rope in the field, which greatly reduces the current common use of driving for turning. It avoids the deformation of the blade caused by manually pulling the blade for turning, and at the same time greatly reduces the workload and improves the work efficiency. The invention proposes a manual turning system and method for the low-pressure rotor of a steam turbine, which can be turned by only 1-2 people, has high safety, and is equipped with a brake system, which greatly improves the turning precision. Easy disassembly and assembly, high efficiency.
图1为本发明所述一种发电机端轴的轴侧示意图。Fig. 1 is an axial schematic diagram of an end shaft of a generator according to the present invention.
图2为本发明提供的一种不带刹车系统的盘车系统的安装位置轴侧示意图。Fig. 2 is a schematic axial view of the installation position of a cranking system without a brake system provided by the present invention.
图3为本发明提供的一种带刹车系统的盘车系统的安装位置轴侧示意图。Fig. 3 is an axial schematic diagram of the installation position of a cranking system with a brake system provided by the present invention.
1-转子，2-柱销，3-第一吊带，4-倒链，5-受力锚点，6-第二吊带，7-尼龙绳。1-rotor, 2-column pin, 3-first sling, 4-inverting chain, 5-forced anchor point, 6-second sling, 7-nylon rope.
为使本发明更加明显易懂，以下结合附图和具体实施案例对本发明作如下详细说明：In order to make the present invention more obvious and understandable, the present invention is described in detail as follows in conjunction with the accompanying drawings and specific implementation examples:
参考图1和图2，一种汽轮机低压转子手动盘车系统，包括柱销2、第一吊带3、倒链4、第二吊带6以及受力锚点5，其中，第一吊带3的一端连接柱销2，另一端连接倒链4；第二吊带6的一端连接受力锚点5，另一端连接倒链4，倒链4悬空，柱销2用于连接汽轮机低压转子，第一吊带3绕汽轮机低压转子；柱销2连接第一吊带3处开设凹槽，所述凹槽处设置紧固件。Referring to Fig. 1 and Fig. 2, a manual cranking system for the low-pressure rotor of a steam turbine includes a column pin 2, a first strap 3, an inverted chain 4, a second strap 6, and a stressed anchor point 5, wherein one end of the first strap 3 Connect the column pin 2, and the other end is connected to the inverted chain 4; one end of the second sling 6 is connected to the force anchor point 5, and the other end is connected to the inverted chain 4, and the inverted chain 4 is suspended in the air. The column pin 2 is used to connect the low-pressure rotor of the steam turbine, and the first sling 3 around the low-pressure rotor of the steam turbine; the column pin 2 is connected to the first strap 3 and a groove is provided, and a fastener is arranged at the groove.
参考图2，受力锚点5位于汽轮机低压转子位置的侧面。Referring to Fig. 2, the stress anchor point 5 is located on the side of the low-pressure rotor of the steam turbine.
作为可选的实施例，第一吊带3和第二吊带6采用扁平钢丝带、尼龙绳或钢丝绳。As an optional embodiment, the first sling 3 and the second sling 6 use flat steel wire belts, nylon ropes or steel wire ropes.
优选的，受力锚点5采用地脚螺栓，地脚螺栓设置在地面上。受力锚点5设置在现有设备基础上。Preferably, the stressed anchor point 5 adopts anchor bolts, and the anchor bolts are arranged on the ground. The stressed anchor point 5 is set on the basis of existing equipment.
作为一种可选的实施方式，第一吊带3缠绕汽轮机低压转子若干圈之后与柱销2链接。As an optional implementation, the first strap 3 is connected to the pin 2 after being wound around the low-pressure rotor of the steam turbine for several turns.
柱销2上还连接一根尼龙绳，尼龙绳7的缠绕方向与第一吊带3缠绕方向相反，尼龙绳7用于盘车时减速。A nylon rope is also connected on the column pin 2, and the winding direction of the nylon rope 7 is opposite to the winding direction of the first suspender 3, and the nylon rope 7 is used for decelerating when turning the car.
基于本发明所述系统的汽轮机低压转子手动盘车方法，将柱销1插入汽轮机低压转子的轴孔中，按照所述连接关系分别连接柱销2、第一吊带3、倒链4、第二吊带6以及受力锚点5，手动拉动倒链4进行盘车，通过倒链4拉动第一吊带3，进而拉动汽轮机低压转子转动，实现汽轮机低压转子手动盘车。Based on the manual cranking method of the steam turbine low-pressure rotor of the system of the present invention, the column pin 1 is inserted into the shaft hole of the steam turbine low-pressure rotor, and the column pin 2, the first strap 3, the reverse chain 4, the second link are respectively connected according to the connection relationship. The sling 6 and the stressed anchor point 5 are manually pulled back chain 4 for barring, the first sling 3 is pulled by the back chain 4, and then the low pressure rotor of the steam turbine is driven to rotate, thereby realizing the manual barring of the low pressure rotor of the steam turbine.
第一吊带3缠绕汽轮机低压转子若干圈之后与柱销2连接，实现持续盘车。The first sling 3 is wound around the low-pressure rotor of the steam turbine for several turns and then connected to the pin 2 to realize continuous cranking.
当盘车速度过高或者需要停止盘车时，拉动尼龙绳7实现减速或停止盘车。When the cranking speed is too high or need to stop the cranking, pull the nylon rope 7 to realize deceleration or stop the cranking.
如图1、图2、图3所示为本发明提供的一种汽轮机低压转子手动盘车的工作方法，图1为发电机端轴的轴侧示意图，图2为一种不带刹车系统的盘车系统的安装位置轴侧示意图，将盘车用柱销2插到发电机端靠上的轴孔中，将第一吊带3一端绑在柱销2上，另一端勾在倒链上，倒链另一端勾在第二吊带6上，第二吊带6的另一端绑在受力锚点上，拉动倒链即可进行盘车。图3为一种带刹车系统的盘车系统的安装位置轴侧示意图，同样将盘车用柱销2插入到发电机端靠上的轴孔中，将第一吊带3一端绑在柱销2上，另一端勾在倒链上，倒链另一端勾在第二吊带6上，第二吊带6的另一端绑在受力锚点上，拉动倒链即可进行盘车；为防止一次将转子盘的角度过大，造成工作区域超出预期位置，提高盘车精度，需要增加一个刹车系统，只需将尼龙绳7一端绑在柱销2上，从反方向绕一圈发电机端轴颈，当汽轮机低压转子开始转动时适当拉紧尼龙绳即可进行刹车。As shown in Fig. 1, Fig. 2 and Fig. 3, it is a working method of manual barring of a steam turbine low-pressure rotor provided by the present invention, Fig. 1 is a schematic diagram of the shaft side of the generator end shaft, and Fig. Schematic diagram of the shaft side of the installation position of the cranking system. Insert the pin 2 for cranking into the shaft hole above the generator end, tie one end of the first sling 3 to the pin 2, and hook the other end to the reverse chain. The other end of the reverse chain is hooked on the second sling 6, and the other end of the second sling 6 is tied on the stressed anchor point, and the turning can be carried out by pulling the reverse chain. Figure 3 is a schematic diagram of the shaft side of the installation position of a cranking system with a brake system. Similarly, insert the pin 2 for cranking into the shaft hole above the generator end, and tie one end of the first sling 3 to the pin 2 The other end of the chain is hooked on the chain, the other end of the chain is hooked on the second sling 6, the other end of the second sling 6 is tied to the stressed anchor point, and the car can be turned by pulling the chain; The angle of the rotor disk is too large, causing the working area to exceed the expected position. To improve the turning accuracy, it is necessary to add a brake system. Just tie one end of the nylon rope 7 to the column pin 2 and make a circle around the journal of the generator end from the opposite direction. , when the low-pressure rotor of the steam turbine starts to rotate, the nylon rope can be properly tightened to brake.
Claims (10)
- 一种汽轮机低压转子手动盘车系统，其特征在于，包括柱销(2)、第一吊带(3)、倒链(4)、第二吊带(6)以及受力锚点(5)，其中，第一吊带(3)的一端连接柱销(2)，另一端连接倒链(4)；第二吊带(6)的一端连接受力锚点(5)，另一端连接倒链(4)，倒链(4)悬空，柱销(2)用于连接汽轮机低压转子，第一吊带(3)绕汽轮机低压转子。A manual cranking system for a steam turbine low-pressure rotor, characterized in that it includes a column pin (2), a first strap (3), an inverted chain (4), a second strap (6) and a stressed anchor point (5), wherein , one end of the first sling (3) is connected to the column pin (2), and the other end is connected to the inverted chain (4); one end of the second sling (6) is connected to the stressed anchor point (5), and the other end is connected to the inverted chain (4) , the chain (4) is suspended, the pin (2) is used to connect the low-pressure rotor of the steam turbine, and the first suspender (3) is wound around the low-pressure rotor of the steam turbine.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，柱销(2)连接第一吊带(3)处开设凹槽，所述凹槽处设置紧固件。The manual cranking system for the low-pressure rotor of a steam turbine according to claim 1, wherein a groove is formed at the place where the pin (2) is connected to the first suspender (3), and a fastener is arranged at the groove.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，第一吊带(3)和第二吊带(6)采用扁平钢丝带、尼龙绳或钢丝绳。The manual barring system for the low-pressure rotor of a steam turbine according to claim 1, characterized in that the first suspender (3) and the second suspender (6) use flat steel wire belts, nylon ropes or steel wire ropes.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，受力锚点(5)采用地脚螺栓、现有设备基础。The manual cranking system for the low-pressure rotor of a steam turbine according to claim 1, characterized in that the force anchor point (5) adopts anchor bolts and existing equipment foundations.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，第一吊带(3)缠绕汽轮机低压转子若干圈之后与柱销(2)链接。The manual barring system for the low-pressure rotor of the steam turbine according to claim 1, characterized in that the first sling (3) is connected to the pin (2) after being wound around the low-pressure rotor of the steam turbine for several turns.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，受力锚点(5)位于汽轮机低压转子位置的侧面。The manual cranking system for the low-pressure rotor of the steam turbine according to claim 1, characterized in that the stress anchor point (5) is located on the side of the low-pressure rotor of the steam turbine.
- 根据权利要求1所述的汽轮机低压转子手动盘车系统，其特征在于，柱销(2)上还连接一根尼龙绳，尼龙绳(7)的缠绕方向与第一吊带(3)缠绕方向相反，尼龙绳(7)用于盘车时减速。The manual barring system for the low-pressure rotor of a steam turbine according to claim 1, wherein a nylon rope is connected to the pin (2), and the winding direction of the nylon rope (7) is opposite to the winding direction of the first sling (3) , slow down when nylon rope (7) is used for turning.
- 基于权利要求1-7任一项所述系统的汽轮机低压转子手动盘车方法，其特征在于，将柱销(1)插入汽轮机低压转子的轴孔中，按照所述连接关系分别连接柱销(2)、第一吊带(3)、倒链(4)、第二吊带(6)以及受力锚点(5)，手动拉动倒链(4)进行盘车，通过倒链(4)拉动第一吊带(3)，进而拉动汽轮机低压转子转动，实现汽轮机低压转子手动盘车。The steam turbine low-pressure rotor manual cranking method based on the system described in any one of claims 1-7, is characterized in that, the column pin (1) is inserted in the shaft hole of the steam turbine low-pressure rotor, and the column pin (1) is connected respectively according to the connection relationship ( 2), the first sling (3), the reverse chain (4), the second sling (6) and the stressed anchor point (5), manually pull the reverse chain (4) for turning, pull the second chain through the reverse chain (4) A sling (3), and then pulls the low pressure rotor of the steam turbine to rotate, realizing the manual barring of the low pressure rotor of the steam turbine.
- 根据权利要求8所述的汽轮机低压转子手动盘车方法，其特征在于，第一吊带(3)缠 绕汽轮机低压转子若干圈之后与柱销(2)连接，实现持续盘车。The manual cranking method for the low-pressure rotor of a steam turbine according to claim 8, characterized in that the first sling (3) is connected to the pin (2) after wrapping the low-pressure rotor of the steam turbine for several turns, so as to realize continuous cranking.
- 根据权利要求8所述的汽轮机低压转子手动盘车方法，其特征在于，当盘车速度过高或者需要停止盘车时，拉动尼龙绳(7)实现减速或停止盘车。The manual cranking method for the low-pressure rotor of a steam turbine according to claim 8, characterized in that, when the cranking speed is too high or the cranking needs to be stopped, the nylon rope (7) is pulled to realize deceleration or stop the cranking.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797397.1 | 2021-07-14 | ||
| CN202110797397.1A CN113339087A (en) | 2021-07-14 | 2021-07-14 | Manual turning system and method for low-pressure rotor of steam turbine |
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| WO2023284078A1 true WO2023284078A1 (en) | 2023-01-19 |
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| PCT/CN2021/115579 WO2023284078A1 (en) | 2021-07-14 | 2021-08-31 | System and method for manually turning low-pressure rotor of steam turbine |
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| WO (1) | WO2023284078A1 (en) |
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| GB1024895A (en) * | 1964-02-13 | 1966-04-06 | Ass Elect Ind | Improved rotor-turning reciprocating mechanism |
| US4211070A (en) * | 1977-06-24 | 1980-07-08 | Bbc Brown Boveri & Company Limited | Start-up motor assembly for rotational machines |
| CN204024732U (en) * | 2014-07-17 | 2014-12-17 | 大唐华银电力股份有限公司金竹山火力发电分公司 | The urgent barring gear of steam turbine |
| US20180051593A1 (en) * | 2015-05-13 | 2018-02-22 | Lukasz Sajdak | Rotor turning system and method |
| CN108386241A (en) * | 2018-04-20 | 2018-08-10 | 中国电建集团河南工程有限公司 | Hydraulic chain automatic barring gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467945U (en) * | 2012-03-06 | 2012-10-03 | 哈尔滨汽轮机厂有限责任公司 | Worm wheel and worm gear axial-feeding turning device for 50,000KW steam turbine generator set |
| JP2015187411A (en) * | 2014-03-26 | 2015-10-29 | 株式会社東芝 | Rotor blade integrated type turbine rotor, steam turbine, and method for manufacturing rotor blade integrated type turbine rotor |
| CN106761976A (en) * | 2015-11-19 | 2017-05-31 | 中电华创电力技术研究有限公司 | A kind of power station steam turbine rotor turning device |
| CN106224177A (en) * | 2016-08-19 | 2016-12-14 | 三重型能源装备有限公司 | Wind power generating set barring gear |
| CN212958788U (en) * | 2020-07-08 | 2021-04-13 | 浙江华元汽轮机械有限公司 | Manual barring mechanism with guide device |
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2021
- 2021-07-14 CN CN202110797397.1A patent/CN113339087A/en active Pending
- 2021-08-31 WO PCT/CN2021/115579 patent/WO2023284078A1/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1024895A (en) * | 1964-02-13 | 1966-04-06 | Ass Elect Ind | Improved rotor-turning reciprocating mechanism |
| US4211070A (en) * | 1977-06-24 | 1980-07-08 | Bbc Brown Boveri & Company Limited | Start-up motor assembly for rotational machines |
| CN204024732U (en) * | 2014-07-17 | 2014-12-17 | 大唐华银电力股份有限公司金竹山火力发电分公司 | The urgent barring gear of steam turbine |
| US20180051593A1 (en) * | 2015-05-13 | 2018-02-22 | Lukasz Sajdak | Rotor turning system and method |
| CN108386241A (en) * | 2018-04-20 | 2018-08-10 | 中国电建集团河南工程有限公司 | Hydraulic chain automatic barring gear |
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