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CN108443084A - A kind of construction method of damper mechanism, blower fan tower barrel and blower fan tower barrel - Google Patents

A kind of construction method of damper mechanism, blower fan tower barrel and blower fan tower barrel Download PDF

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Publication number
CN108443084A
CN108443084A CN201810493523.2A CN201810493523A CN108443084A CN 108443084 A CN108443084 A CN 108443084A CN 201810493523 A CN201810493523 A CN 201810493523A CN 108443084 A CN108443084 A CN 108443084A
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Prior art keywords
tower
blower fan
fan tower
damper mechanism
tower barrel
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夏中榜
彭欢
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PowerChina Zhongnan Engineering Corp Ltd
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PowerChina Zhongnan Engineering Corp Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22Foundations specially adapted for wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

本发明公开了一种减振机构、风机塔筒及风机塔筒的施工方法,其用于减小风机塔筒的振动,其包括沙袋(1)、绳索部件(2)、连接杆(3)和磁性固定组件(4),所述连接杆(3)的一端与所述磁性固定组件(4)固定连接,所述磁性固定组件(4)用于吸附固定在所述风机塔筒的内壁上,所述连接杆(3)的另一端通过所述绳索部件(2)悬挂有所述沙袋(1)。本发明具有减振效果好、所需投入设备简单、安装速度快、造价低、投资省等特点,能够削减钢制柔性风机塔筒在吊装过程中如遇大风等极端天气出现涡激共振。

The invention discloses a vibration reduction mechanism, a fan tower and a construction method for the fan tower, which are used to reduce the vibration of the fan tower, and include sandbags (1), rope parts (2), and connecting rods (3) and a magnetic fixing component (4), one end of the connecting rod (3) is fixedly connected with the magnetic fixing component (4), and the magnetic fixing component (4) is used for adsorption and fixing on the inner wall of the fan tower , the other end of the connecting rod (3) is suspended with the sandbag (1) through the rope part (2). The invention has the characteristics of good vibration damping effect, simple input equipment, fast installation speed, low cost, low investment, etc., and can reduce vortex-induced resonance in extreme weather such as strong winds during the hoisting process of the steel flexible fan tower.

Description

一种减振机构、风机塔筒及风机塔筒的施工方法A vibration damping mechanism, a fan tower and a construction method for the fan tower

技术领域technical field

本发明属于大型风力发电机组技术领域,具体涉及一种减振机构、风机塔筒及风机塔筒的施工方法。The invention belongs to the technical field of large-scale wind power generating sets, and in particular relates to a vibration damping mechanism, a fan tower and a construction method for the fan tower.

背景技术Background technique

随着风资源的持续开发,内陆大部分具有较好风速资源的地区大都已经完成第一批60-100m级风力发电机组的安装。风资源开发难度的增大也催生风机机组厂家逐步开始布置100米高度以上的机组型式。100米以上的钢制柔性塔筒风机机组由于基础对顶部风机塔筒的刚性约束减弱,其自振频率较低,风力发电机的塔筒由多段圆形塔筒连接而成,而塔筒在安装过程中容易受到来自各个方向的不均匀空气流动的影响,当周围空气产生涡流震动的频率与塔筒自振的频率接近时,极为容易使上部塔筒产生涡激共振,对风机后续机组设备的安装和基础稳定产生重大安全隐患。With the continuous development of wind resources, most inland areas with good wind speed resources have completed the installation of the first batch of 60-100m wind turbines. The increasing difficulty of wind resources development has also prompted wind turbine manufacturers to gradually begin to arrange units with a height of more than 100 meters. The steel flexible tower fan unit with a height of more than 100 meters has a lower natural vibration frequency due to the weakened rigid constraint of the foundation on the top fan tower. The tower of the wind turbine is connected by multiple circular towers, and the tower During the installation process, it is easy to be affected by uneven air flow from all directions. When the frequency of vortex vibration generated by the surrounding air is close to the frequency of natural vibration of the tower, it is very easy to cause vortex-induced resonance in the upper tower, which will affect the subsequent unit equipment of the fan. The installation and the stability of the foundation will cause major safety hazards.

现有技术中主要采用密封塔筒上下出口、设置扰流风绳及设置绕塔筒扰流板等措施来避免产生涡激共振,但仍然不能从根本上解决以下问题:In the prior art, measures such as sealing the upper and lower outlets of the tower, installing spoiler wind ropes, and setting spoilers around the tower are mainly used to avoid vortex-induced resonance, but the following problems still cannot be fundamentally solved:

1)由于扰流风绳直径较小,无法对塔筒周边空气流动产生明显扰动,且风绳的方向相对固定,不能及时调整以适应空气流动方向;1) Due to the small diameter of the turbulent wind rope, it cannot produce obvious disturbance to the air flow around the tower, and the direction of the wind rope is relatively fixed, so it cannot be adjusted in time to adapt to the direction of air flow;

2)由于绕塔筒扰流板体积相对塔筒直径较小,覆盖塔筒表面区域有限,不足降低大风条件下塔筒周围空气的激振频率;2) Since the volume of the spoiler around the tower is smaller than the diameter of the tower, the surface area covered by the tower is limited, which is not enough to reduce the excitation frequency of the air around the tower under strong wind conditions;

3)密封塔筒上部舱口及塔筒门之后,塔筒自振频率没有改变,空气流动仍然会在塔筒背风面产生涡流低压区,激发塔筒产生规律共振。3) After sealing the upper hatch and tower door of the tower, the natural frequency of the tower does not change, and the air flow will still generate a vortex low-pressure area on the leeward side of the tower, which excites the tower to generate regular resonance.

4)直接在塔筒顶部平台放置沙袋,则沙袋与塔筒平台摩擦力过大,沙袋会随塔筒一起晃动,达不到消能的效果。4) If sandbags are placed directly on the top platform of the tower, the friction between the sandbag and the tower platform will be too large, and the sandbag will shake with the tower, which will not achieve the effect of energy dissipation.

发明内容Contents of the invention

为了克服现有技术中存在的问题,减小风机塔筒的振动,提供一种用于风机塔筒的减振机构,具体技术方案如下。In order to overcome the problems existing in the prior art and reduce the vibration of the fan tower, a vibration damping mechanism for the fan tower is provided, and the specific technical solution is as follows.

一种减振机构,其用于减小风机塔筒的振动,其包括沙袋、绳索部件、连接杆和磁性固定组件,所述连接杆的一端与所述磁性固定组件固定连接,所述连接杆的另一端通过所述绳索部件悬挂有所述沙袋。A vibration damping mechanism, which is used to reduce the vibration of the wind turbine tower, which includes a sandbag, a rope part, a connecting rod and a magnetic fixing assembly, one end of the connecting rod is fixedly connected to the magnetic fixing assembly, and the connecting rod The other end of the sandbag is suspended by the rope part.

进一步地,所述磁性固定组件包括盒体、永磁体和控制杆,所述永磁体可滑动的设置所述盒体内,所述盒体上开设有通孔,所述控制杆穿过所述通孔与所述永磁体固定连接,所述控制杆位于所述盒体之外的端部设置有凸缘部。Further, the magnetic fixing assembly includes a box body, a permanent magnet and a control rod, the permanent magnet is slidably arranged in the box body, a through hole is opened on the box body, and the control rod passes through the through hole. The hole is fixedly connected with the permanent magnet, and the end of the control rod outside the box is provided with a flange.

进一步地,所述绳索部件为绳子或者链条。Further, the rope component is a rope or a chain.

基于同一发明构思,本发明还涉及一种风机塔筒,其包括塔筒本体和上述的减振机构,所述塔筒本体由钢材制成,所述减振机构的磁性固定组件吸附固定在所述风机塔筒的内壁上,所述减振机构设置有两个以上且围绕风机塔筒的中心线均匀分布。Based on the same inventive idea, the present invention also relates to a fan tower, which includes a tower body and the above-mentioned vibration damping mechanism, the tower body is made of steel, and the magnetic fixing component of the vibration damping mechanism is adsorbed and fixed on the On the inner wall of the fan tower, there are more than two vibration damping mechanisms that are evenly distributed around the centerline of the fan tower.

基于同一发明构思,本发明还涉及一种风机塔筒的施工方法,所述风机塔筒包括上下设置的多段塔筒,所述施工方法包括以下步骤:Based on the same inventive concept, the present invention also relates to a construction method of a fan tower, the fan tower includes a multi-section tower arranged up and down, and the construction method includes the following steps:

1)在其中一段塔筒安装完成后,在其顶部法兰盘下方的内壁上安装上述的减振机构,并使减振机构的沙袋摆动方向与塔筒的摆动方向相反;1) After the installation of one section of the tower is completed, install the above-mentioned damping mechanism on the inner wall below the top flange, and make the swing direction of the sandbag of the damping mechanism opposite to that of the tower;

2)吊装下一段塔筒到上一段塔筒的顶部,并通过法兰盘固定连接在一起;2) Hoist the next section of the tower to the top of the previous section of the tower, and connect them together through flanges;

3)在下一段塔筒的顶部法兰盘下方的内壁上安装上述的减振机构,并使减振机构的沙袋摆动方向与塔筒的摆动方向相反;3) Install the above-mentioned damping mechanism on the inner wall below the top flange of the next section of the tower, and make the swing direction of the sandbag of the damping mechanism opposite to that of the tower;

4)重复步骤1)至步骤3)直到将风机机舱吊装安装至风机塔筒的顶部。4) Repeat step 1) to step 3) until the wind turbine nacelle is hoisted and installed on the top of the wind tower.

进一步地,上述减振机构的绳索部件的长度根据已搭建风机塔筒的自振频率进行调节,使得沙袋的摆动频率接近或等于已搭建风机塔筒的自振频率。Further, the length of the rope part of the vibration damping mechanism is adjusted according to the natural vibration frequency of the built wind tower, so that the swing frequency of the sandbag is close to or equal to the natural vibration frequency of the built wind tower.

进一步地,在上述步骤4)之后将减振机构全部拆除。Further, after the above step 4), all the damping mechanisms are removed.

本发明通过利用比重较大的沙袋来增加风机塔筒自身荷载,提高了高处塔筒的自振频率,降低了出现涡激共振的风险;其次,利用沙袋内沙砾相互摩擦,及沙袋之间的撞击,消耗风机塔筒受外部风能激震而传导至风机高处塔筒的自振能量,从而削减风能持续作用下塔筒的自振,保证高风机塔筒在大风等恶劣条件下吊装作业的安全稳定性;另一方面,利用磁性固定组件来保证沙袋装置与风机塔筒之间的固定连接,便于拆卸及安装。本发明具有减振效果好、所需投入设备简单、安装速度快、造价低、投资省等特点。The present invention increases the self-load of the fan tower by using sandbags with a relatively large specific gravity, thereby increasing the natural vibration frequency of the high tower and reducing the risk of vortex-induced resonance; The impact of the blower consumes the natural vibration energy transmitted to the high tower of the wind turbine by the shock of the external wind energy, thereby reducing the natural vibration of the tower under the continuous action of wind energy, and ensuring the hoisting operation of the high wind turbine tower under harsh conditions such as strong wind Safety and stability; on the other hand, the magnetic fixing components are used to ensure the fixed connection between the sandbag device and the wind tower, which is convenient for disassembly and installation. The invention has the characteristics of good vibration damping effect, simple input equipment, fast installation speed, low cost, low investment and the like.

附图说明Description of drawings

图1为本发明减振机构安装于塔筒内壁上的示意图;Fig. 1 is the schematic diagram that the damping mechanism of the present invention is installed on the inner wall of the tower;

图2为磁性固定组件的示意图;2 is a schematic diagram of a magnetic fixing assembly;

图3为磁性固定组件处于非安装状态的示意图;Fig. 3 is a schematic diagram of a magnetic fixing component in a non-installed state;

图4为磁性固定组件处于安装状态的示意图。Fig. 4 is a schematic diagram of the magnetic fixing assembly in an installed state.

图中:沙袋1、绳索部件2、连接杆3、磁性固定组件4、塔筒本体5、法兰盘6、螺栓孔7、盒体41、永磁体42、控制杆43、通孔44、凸缘部45。In the figure: sandbag 1, rope component 2, connecting rod 3, magnetic fixing component 4, tower body 5, flange plate 6, bolt hole 7, box body 41, permanent magnet 42, control rod 43, through hole 44, convex Edge 45 .

具体实施方式Detailed ways

下面结合附图对本发明作进一步详细描述。The present invention will be described in further detail below in conjunction with the accompanying drawings.

参见图1,本实施例依托某正在施工的风电项目。项目采用歌美飒G114 2.1MW风机机组,轮毂中心高度达到了153米,共由8段塔筒组成,采用钢制柔性风机塔筒。在机组安装过程中,第6段塔筒安装完成以后塔顶高度就达到了108米,如不及时采取有效措施,塔筒会由于共振而产生规律晃动,顶部最大振幅可达1.5米以上。Referring to Fig. 1, this embodiment relies on a wind power project under construction. The project adopts the Gamesa G114 2.1MW wind turbine unit, the center height of the hub reaches 153 meters, and consists of 8 sections of towers, using steel flexible wind towers. During the installation of the unit, the height of the top of the tower reached 108 meters after the installation of the sixth section of the tower. If effective measures are not taken in time, the tower will shake regularly due to resonance, and the maximum amplitude at the top can reach more than 1.5 meters.

为防止和削减可能出现的风机塔筒共振,保证项目吊装过程的顺利实施,在第6段塔筒完成后第7段塔筒安装之前,立即在顶部的内壁上安装减振机构,减振机构为法兰盘6的下方,当塔筒出现共振的倾向时,立即安排技术人员通过反向晃动沙袋,削减塔筒自振能量,从而从一开始就遏制塔筒共振的扩大。在第7段塔筒安装完成后以及第8段塔筒安装完成后,同样通过相同措施反向晃动沙袋,积极对塔筒自振能量进行削减。在机舱与第8节塔筒对接完成以后,依靠机舱压重极大提高了塔筒自振频率,这时可取下减振机构,避免后续营运过程中减振机构掉落引起的安全事故。In order to prevent and reduce possible fan tower resonance and ensure the smooth implementation of the project hoisting process, after the completion of the 6th section of the tower and before the installation of the 7th section of the tower, immediately install a vibration damping mechanism on the inner wall of the top. For the bottom of the flange 6, when the tower has a tendency to resonate, immediately arrange technicians to shake the sandbags in reverse to reduce the natural vibration energy of the tower, so as to curb the expansion of tower resonance from the beginning. After the installation of the 7th section of the tower and the 8th section of the tower are completed, the sandbags are also reversely shaken through the same measures to actively reduce the natural vibration energy of the tower. After the docking of the nacelle and the section 8 tower is completed, the natural vibration frequency of the tower is greatly improved by relying on the ballast of the nacelle. At this time, the vibration damping mechanism can be removed to avoid safety accidents caused by the vibration damping mechanism falling during subsequent operation.

参见图1,风机塔筒包括上下设置的多段塔筒,相邻两端塔筒利用法兰盘6连接在一起,法兰盘6上开设有连接用的螺栓孔7,每一段塔筒包括塔筒本体5和减振机构,所述塔筒本体5由钢材制成,所述减振机构的磁性固定组件4吸附固定在所述塔筒本体5的内壁上,所述减振机构设置有两个以上且围绕风机塔筒的中心线均匀分布。Referring to Fig. 1, the fan tower includes multi-section towers arranged up and down, and the towers at adjacent ends are connected together by flanges 6, and bolt holes 7 for connection are opened on the flanges 6, and each section of the tower includes a tower Tube body 5 and vibration damping mechanism, the tower tube body 5 is made of steel, the magnetic fixing assembly 4 of the vibration damping mechanism is adsorbed and fixed on the inner wall of the tower tube body 5, and the vibration damping mechanism is provided with two More than one and evenly distributed around the center line of the wind turbine tower.

减振机构包括沙袋1、绳索部件2、连接杆3和磁性固定组件4,所述连接杆3的一端与所述磁性固定组件4固定连接,所述磁性固定组件4能够吸附固定在所述塔筒本体5的内壁上,所述连接杆3的另一端通过所述绳索部件2悬挂有所述沙袋1。其中连接杆3可采用弯折连杆,连接绳索部件2的一端竖直设置;所述绳索部件为绳子或/和链条,绳索部件的长度根据已搭建风机塔筒的自振频率进行调节,使得沙袋的摆动频率接近或等于已搭建风机塔筒的自振频率,这样可以最大限度地减小塔筒的振动。The damping mechanism includes a sandbag 1, a rope part 2, a connecting rod 3 and a magnetic fixing assembly 4, one end of the connecting rod 3 is fixedly connected with the magnetic fixing assembly 4, and the magnetic fixing assembly 4 can be adsorbed and fixed on the tower On the inner wall of the barrel body 5 , the other end of the connecting rod 3 is hung with the sandbag 1 through the rope component 2 . Wherein the connecting rod 3 can adopt a bent connecting rod, and one end connected to the rope part 2 is vertically arranged; the rope part is a rope or/and a chain, and the length of the rope part is adjusted according to the natural vibration frequency of the fan tower that has been built, so that The oscillation frequency of the sandbag is close to or equal to the natural vibration frequency of the erected wind tower, which can minimize the vibration of the tower.

参见图2-3,所述磁性固定组件4包括盒体41、永磁体42和控制杆43,所述永磁体42可滑动的设置所述盒体41内,所述盒体41上开设有通孔44,所述控制杆43穿过所述通孔44与所述永磁体42固定连接,所述控制杆43位于所述盒体42之外的端部设置有凸缘部45。使用时,按压控制杆43,推动永磁体42处于接近塔筒本体5内壁的位置,永磁体42吸附在钢材质的内壁上,磁力可根据具体使用的情况,可达到200-900 公斤之间,当需要拆除磁性固定组件4时,利用端部具有U型结构的撬棒卡住控制杆43,凸缘部45为端部具有U型结构的撬棒提供受力点,撬棒将控制杆43提起,永磁体42与内壁的间距增大,磁力减小,即可拆除磁性固定组件4。2-3, the magnetic fixing assembly 4 includes a box body 41, a permanent magnet 42 and a control rod 43, the permanent magnet 42 is slidably arranged in the box body 41, and the box body 41 is provided with a through hole. The control rod 43 passes through the through hole 44 and is fixedly connected with the permanent magnet 42 , and the end of the control rod 43 outside the box body 42 is provided with a flange portion 45 . When in use, press the control lever 43 to push the permanent magnet 42 to a position close to the inner wall of the tower body 5, the permanent magnet 42 is adsorbed on the inner wall of the steel material, and the magnetic force can reach between 200-900 kg according to the specific use situation. When it is necessary to remove the magnetic fixing assembly 4, the crowbar with a U-shaped structure at the end is used to block the control rod 43, and the flange part 45 provides a stress point for the crowbar with a U-shaped structure at the end, and the crowbar will control the rod 43 Lifting, the distance between the permanent magnet 42 and the inner wall increases, the magnetic force decreases, and the magnetic fixing assembly 4 can be removed.

上面结合附图对本发明的实施例进行了描述,在不冲突的情况下,本发明中的实施例及实施例中的特征可以相互组合。为叙述方便,上文中出现的“上”、“下”字样,仅表示与附图本身的上、下方向一致,并不对结构起限定作用。本发明并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是局限性的,本领域的普通技术人员在本发明的启示下,在不脱离本发明宗旨和权利要求所保护的范围情况下,还可做出很多形式,这些均属于本发明的保护范围之内。The embodiments of the present invention have been described above with reference to the accompanying drawings, and the embodiments and features in the embodiments of the present invention can be combined with each other if there is no conflict. For the convenience of description, the words "up" and "down" appearing above only indicate that they are consistent with the up and down directions of the drawings themselves, and do not limit the structure. The present invention is not limited to the above specific implementation, the above specific implementation is only illustrative, rather than limiting, those skilled in the art under the enlightenment of the present invention, without departing from the purpose and rights of the present invention In the case of requiring the scope of protection, many forms can also be made, and these all belong to the scope of protection of the present invention.

Claims (7)

1. a kind of damper mechanism is used to reduce the vibration of blower fan tower barrel, it is characterised in that:Including sandbag (1), rope part (2), connecting rod (3) and magnetic fixation kit (4), one end of the connecting rod (3) and the magnetic fixed company of fixation kit (4) It connects, the other end of the connecting rod (3) is hung with the sandbag (1) by the rope part (2).
2. a kind of damper mechanism according to claim 1, which is characterized in that the magnetism fixation kit (4) includes box body (41), permanent magnet (42) and control-rod (43), the permanent magnet (42) are slidably arranged in the box body (41), the box body (41) through-hole (44) is offered on, the control-rod (43) is fixedly connected across the through-hole (44) with the permanent magnet (42), The end set that the control-rod (43) is located at except the box body has flange part (45).
3. a kind of damper mechanism according to claim 1, which is characterized in that the rope part (2) is rope or chain Item.
4. a kind of blower fan tower barrel, it is characterised in that:Including tower ontology (5) and subtracting as described in claim 1-3 any one It shakes mechanism, the tower ontology (5) is made of steel, and the magnetic fixation kit (4) of the damper mechanism is absorbed and fixed at described On the inner wall of tower ontology (5), the damper mechanism is provided with more than two and around blower fan tower barrel center line and is uniformly distributed.
5. a kind of construction method of blower fan tower barrel, the blower fan tower barrel includes multistage tower setting up and down, which is characterized in that institute Construction method is stated to include the following steps:
1)One section of tower is after installation is complete wherein, installation such as claim 1-3 on the inner wall below its top flange dish (6) Damper mechanism described in any one, and keep sandbag (1) swaying direction of damper mechanism opposite with the swaying direction of tower;
2)Next section of tower is lifted to the top of the preceding paragraph tower, and be fixed together by ring flange (6);
3)Installation is as described in claim 1-3 any one on the inner wall below the top flange dish (6) of next section of tower Damper mechanism, and keep sandbag (1) swaying direction of damper mechanism opposite with the swaying direction of tower;
4)Repeat step 1)To step 3)It is installed to the top of blower fan tower barrel until by fan engine room lifting.
6. a kind of construction method of blower fan tower barrel according to claim 5, which is characterized in that the rope of above-mentioned damper mechanism The length of component (2) is adjusted according to the natural frequency of vibration for having built blower fan tower barrel so that the hunting frequency of sandbag (1) it is close or Equal to the natural frequency of vibration for having built blower fan tower barrel.
7. a kind of construction method of blower fan tower barrel according to claim 5, which is characterized in that in above-mentioned steps 4)Later will Damper mechanism is all removed.
CN201810493523.2A 2018-05-22 2018-05-22 A kind of construction method of damper mechanism, blower fan tower barrel and blower fan tower barrel Pending CN108443084A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008747A2 (en) * 1998-12-08 2000-06-14 Franz Mitsch Vibration absorber for wind turbines
CN202781403U (en) * 2012-08-28 2013-03-13 上海庄辰机械有限公司 Magnetic fixator for building mould
CN105745439A (en) * 2013-10-28 2016-07-06 维斯塔斯风力系统有限公司 Method of damping wind turbine tower oscillations
CN208236575U (en) * 2018-05-22 2018-12-14 中国电建集团中南勘测设计研究院有限公司 A kind of damper mechanism and blower fan tower barrel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008747A2 (en) * 1998-12-08 2000-06-14 Franz Mitsch Vibration absorber for wind turbines
CN202781403U (en) * 2012-08-28 2013-03-13 上海庄辰机械有限公司 Magnetic fixator for building mould
CN105745439A (en) * 2013-10-28 2016-07-06 维斯塔斯风力系统有限公司 Method of damping wind turbine tower oscillations
CN208236575U (en) * 2018-05-22 2018-12-14 中国电建集团中南勘测设计研究院有限公司 A kind of damper mechanism and blower fan tower barrel

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Application publication date: 20180824