WO2014183476A1 - 带电磁控制器的离心式压缩机 - Google Patents
带电磁控制器的离心式压缩机 Download PDFInfo
- Publication number
- WO2014183476A1 WO2014183476A1 PCT/CN2014/070427 CN2014070427W WO2014183476A1 WO 2014183476 A1 WO2014183476 A1 WO 2014183476A1 CN 2014070427 W CN2014070427 W CN 2014070427W WO 2014183476 A1 WO2014183476 A1 WO 2014183476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- rotor
- silicon steel
- electromagnetic controller
- fixing ring
- 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
Links
Classifications
-
- 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
- F04D29/051—Axial thrust balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- 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
- F04D29/058—Bearings magnetic; electromagnetic
Definitions
- the present invention relates to a compressor, and more particularly to a centrifugal compressor.
- Centrifugal compressors are key equipment in the oil extraction and refining, petrochemical and coal chemical industries.
- the large flow requires the rotor to have a relatively large span, which reduces the critical speed of the rotor; and to increase the efficiency, it is necessary to increase the rotational speed of the rotor, so that the ratio of the rotor operating speed to the critical speed of the same order is increasing; gas pressure Increasing, the gas flow excitation force acting on the rotor is gradually increased; all of these factors make the compressor face the problem of rotor instability. How to improve the stability of the transfer subsystem has become the goal that the engineering and scientific community has been pursuing in recent years.
- Rotor instability usually means that when the speed reaches a certain value, it is in a critical state. If a small disturbance is encountered, it may cause the rotor vibration to suddenly increase, causing a fault of the jump. Since the 1960s, with the increase of the power and speed of turbomachinery, some problems of weak performance at low speed and low power have become more and more prominent, and the stability problem is particularly significant. In the last few decades, although both the engineering and scientific communities have given high attention to the stability of the rotor, cases of instability have occurred from time to time. This type of failure is a relatively stubborn failure that requires major modifications to the unit.
- the damper sealing technology of Dresser-Rand, USA which is similar in appearance to a honeycomb seal, but the difference is that the honeycomb seal is welded with Hastelloy, and the damper seal is a vented damper seal. , is made of aluminum, because the aluminum is relatively soft, so it has better resistance to rubbing. This seal has a good effect after the practical application experience of using such a seal in the sealing reform of a plurality of compressors.
- the difficulty of this seal is that the surface of the balance disc or rotor component is required to be flat. If this is not the case, the balance disc needs to be replaced or even a high speed balancing of the rotor.
- a back-to-back type centrifugal compressor with a balance disc seal includes a rotor 11', an impeller 12', a balance disc 13', a partition 14', and a balance disc seal 15' is machined on the balance disc.
- the centrifugal compressor of the structure is arranged on the impeller. Due to the back-to-back arrangement, the axial forces acting on the impeller can partially cancel each other, so that the area of the balance disc can be reduced. On the other hand, the back-to-back arrangement , can reduce the pressure difference on both sides of the balance disc. Above two parties The surface factors can reduce the leakage of fluid flowing through the balance plate seal, thereby improving the efficiency of the centrifugal compressor.
- the rotor of this arrangement since the balance disc is located in the middle of the rotor, the fluid flow exciting force is generated when the fluid flows through the balance disc seal, and the exciting force will input negative damping to the rotor system, and the first step of the rotor is positive.
- the precessional mode is particularly sensitive to the airflow excitation force at this location. Therefore, the rotor of this arrangement is more prone to instability failure.
- the technical problem to be solved by the present invention is to provide a centrifugal compressor with an electromagnetic controller which can improve the stability of the rotor.
- a centrifugal compressor with an electromagnetic controller comprising a rotor, a stator, a diaphragm and a balance disc, the partition and the stator are fixed, the balance disc and the rotor are fixed, and
- the electromagnetic controller static stator assembly and the electromagnetic controller rotor assembly include a stator core fixing ring and a stator silicon steel sheet, the stator core fixing ring is annular, and the stator silicon steel sheet is fixed to the a stator core fixing ring inner wall, and a plurality of stator silicon steel sheets are circumferentially spaced on the inner wall of the stator core fixing ring, wherein each of the stator silicon steel sheets is wound with a coil, and the stator core fixing ring is fixed to the partition plate
- the electromagnetic controller rotor assembly comprises a rotor silicon steel sheet, the rotor silicon steel sheet is annular, and the rotor silicon steel sheet is fixed on the balance disc.
- the electromagnetic controller stator assembly further includes a stator cage, the stator cage is annular, and the stator cage is fixed to the outside of the stator core fixing ring, the stator The cage is made of a non-magnetic material, and the stator, the stator cage, and the stator core fixing ring are provided with a stator fixing ring on the same axial side, the stator fixing ring is a sheet ring, the stator fixing ring and the spacer There are stator fixing bolts between them.
- a centrifugal compressor with an electromagnetic controller wherein the electromagnetic controller rotor assembly further includes a rotor holder, the rotor holder is annular and the rotor holder is made of a non-magnetic material, the rotor silicon steel
- the rotor is fixed to the inner side of the rotor holder, and a rotor fixing ring is disposed between the rotor holder and the balance disc.
- the rotor fixing ring is a sheet ring, and the rotor fixing ring is located at the rotor holder and The axial side of the balance disc, and the rotor retaining ring and the balance disc are fixed by a rotor fixing bolt.
- a centrifugal compressor with an electromagnetic controller wherein each of the stator silicon steel sheets is provided with a sealing body, and the sealing bodies and the stator silicon steel sheets are connected to each other to form an inner wall of the stator core fixing ring.
- the smooth cylindrical surface has a plurality of counterbore holes, and the axial direction of the counterbore is a normal direction of the smooth cylindrical surface.
- a centrifugal compressor with an electromagnetic controller according to the present invention wherein the stator core fixing ring and the stator silicon steel sheet are integrally formed.
- the centrifugal compressor with an electromagnetic controller of the present invention wherein the stator core fixing ring and the stator silicon steel sheet are separated
- the stator silicon steel sheets are respectively fixed to the stator core fixing ring by a stator silicon steel sheet fixing bolt, and the stator silicon steel sheet fixing bolts are arranged along the axial direction of the stator core fixing ring.
- a centrifugal compressor with an electromagnetic controller according to the present invention wherein the counterbore has a depth of 2 to 5 mm, and the counterbore has a diameter of 2 to 8
- a centrifugal compressor with an electromagnetic controller according to the present invention wherein the counterbore is evenly distributed on a smooth cylindrical surface.
- centrifugal compressor with an electromagnetic controller wherein the plurality of stator silicon steel sheets are uniformly distributed circumferentially on the inner wall of the stator core fixing ring.
- the electromagnetic controller static stator assembly and the electromagnetic controller rotor assembly are respectively disposed on the diaphragm and the balance disc, the coils in the static controller of the electromagnetic controller are energized to form a controllable magnetic field, and the control is performed.
- This magnetic field applies an exciting force or a vibration control force to the rotor, thereby improving the stability of the rotor.
- each stator silicon steel sheet is provided with a sealing body
- each sealing body is connected to the inner wall of the stator core fixing ring to form a smooth cylindrical surface
- the smooth cylindrical surface is provided with counterbore
- the counterbore forms a damping seal
- the damping The seal can replace the original compressor balance disc seal and restrict the flow of gas from the high pressure side to the low pressure side of the seal.
- Figure 1 is a structural view of a conventional "back-to-back" centrifugal compressor
- FIG. 2 is a structural view of a first embodiment of a centrifugal compressor with an electromagnetic controller according to the present invention
- Figure 3 is a cross-sectional view showing the balance disc and the partition portion of the centrifugal compressor with the electromagnetic controller of the present invention
- Figure 4 is a front elevational view of the stator assembly of the centrifugal compressor with an electromagnetic controller of the present invention
- Figure 5 is a left side view of the stator assembly of the centrifugal compressor with an electromagnetic controller of the present invention
- Figure 6 is a front elevational view of the stator assembly with a solenoid controller in the centrifugal compressor of the present invention
- FIG. 7 is a front view of the centrifugal compressor of the centrifugal compressor with an electromagnetic controller inserted into the sealing body according to the present invention
- FIG. 8 is a front view of the surface of the sealing body of the stator assembly with the electromagnetic controller in the centrifugal compressor of the present invention.
- Fig. 9 is a view showing the arrangement of the counterbore holes on the surface of the stator assembly sealing body of the centrifugal compressor with the electromagnetic controller of the present invention;
- Fig. 10 is a structural view showing the second embodiment of the centrifugal compressor with the electromagnetic controller of the present invention.
- Embodiment 1 of the centrifugal compressor with electromagnetic controller of the present invention with an electromagnetic controller Back type "centrifugal compressor, including rotor 03, stator, diaphragm 11, balance plate 13, electromagnetic controller stator assembly 15 and electromagnetic controller rotor assembly 17, spacer 11 and stator phase fixed, balance disk 13 and rotor 03 phase Fixed, as shown in FIG. 3, the electromagnetic controller stator assembly 15 includes a stator core fixing ring 151, a stator silicon steel sheet 153, and a stator cage 152. As shown in FIGS. 4 and 5, the stator silicon steel sheet 153 is fixed to the stator core.
- the inner wall of the ring 151, and the plurality of stator silicon steel sheets 153 are uniformly arranged circumferentially on the inner wall of the stator core fixing ring 151. As shown in Fig. 6, each of the stator silicon steel sheets 153 is wound with a coil 155 in a clockwise or counterclockwise direction. As shown in FIG. 3, the stator holder 152 and the stator core fixing ring 151 are both annular, and the stator holder 152 is disposed outside the stator core fixing ring 151, and the stator holder 152 and the stator core fixing ring 151 are provided.
- the interference cage 152 is made of aluminum or other non-magnetic material.
- the spacer 11, the stator holder 152, and the stator core fixing ring 151 are provided with a stator fixing ring 16 on the same axial side.
- the ring 16 is a sheet-shaped ring, and a stator fixing bolt 161 is disposed between the stator fixing ring 16 and the partition plate 11.
- the electromagnetic controller rotor assembly 17 includes a rotor holder 171, a rotor silicon steel sheet 173, a rotor holder 171, and a rotor silicon steel sheet.
- the rotor holder 173 are both annular, and the rotor holder is made of a non-magnetic material, and the rotor silicon steel sheet 173 is disposed on the inner side of the rotor holder 171 with an interference fit therebetween, between the rotor holder 171 and the balance disc 13
- a rotor retaining ring 18 is provided, the rotor retaining ring 18 is a sheet-shaped ring, the rotor retaining ring 18 is located on one axial side of the rotor retainer 171 and the balance disc 13, and the rotor retaining ring 18 and the balance disc 13 are fixed by a rotor.
- the bolts 175 are fixed.
- each of the stator silicon steel sheets 153 is provided with a sealing body 14 which is usually composed of a soft material such as aluminum or copper, and each sealing body 14 and each stator silicon steel sheet 153 are connected to each other by a stator core.
- a smooth cylindrical surface 141 is formed on the inner wall of the ring 151.
- the smooth cylindrical surface 141 is provided with a plurality of counterbore 142.
- the axial direction of the counterbore 142 is the normal direction of the smooth cylindrical surface 141, and the counterbore 142 is The depth is 2-5 mm, the diameter is 2_8 mm, and the counterbore 142 is evenly distributed on the smooth cylindrical surface 141.
- stator core fixing ring 151 and the stator silicon steel sheet 153 are separated structures, and the stator silicon steel sheet 153 is processed by wire cutting or stamping, and each stator silicon steel sheet 153 is fixed by a stator silicon steel sheet.
- the bolt 154 is fixed to the stator core fixing ring 151, and the stator silicon steel sheet fixing bolt 154 is disposed along the axial direction of the stator core fixing ring 151.
- stator core retaining ring 151 and the stator silicon steel sheet 153 can also be processed into one by wire cutting.
- the electromagnetic controller stator silicon steel sheet 153 is magnetized by applying a current in the coil 155 to form an N pole and an S pole. As shown in FIG. 6, the counterbore 142 on the smooth cylindrical surface 141 forms a damping seal by changing the coil 155. Current, applying electromagnetic force to the rotor of the turbomachinery.
- an "in-line" centrifugal compressor with an electromagnetic controller is provided with an electromagnetic controller stator assembly 15 on the partition 41, and an electromagnetic controller rotor assembly 17 is fixed to the balance disc 42.
- the magnetic field can propagate in space, and a certain force can be generated between the components that do not contact each other under the action of the magnetic field.
- the centrifugal compressor with the electromagnetic controller of the present invention can control the current in the coil 155 to the rotor.
- a controllable magnetic field is applied to control the magnetic field to apply an exciting force or vibration control force to the rotor.
- the fault force acting on the rotor can be written as a resultant force of a plurality of harmonic forces, as shown in the following formula (1), n is an integer, ⁇ is the rotational speed of the rotor, ⁇ 1 ⁇ is the phase of the exciting force, and F ln is the amplitude of the exciting force.
- the rotor system will be unstable when the energy generated by these forces cannot be consumed by the damping system.
- This non-conservative force can be represented by a matrix.
- the effect exerted on the rotor by the electromagnetic device at this time can be represented by a stiffness matrix Kc or a damping matrix Dc.
- the electromagnetic controller stator assembly 15 of the present invention has a sealing function, so that it can be installed on the gas sealing portion of the original turbine machine to save the axial space of the rotor, thereby enabling control in the direction of the rotor axis during the control process.
- the position of the force is the smallest from the position of the fault force.
- Such a small control force can achieve the control effect.
- the required electromagnetic bearing has a small volume and is suitable for use in such a compact space inside the turbomachinery.
- the centrifugal compressor with the electromagnetic controller of the invention can be used for various turbomachines to improve the stability of the rotor, and has industrial applicability.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
一种带电磁控制器的离心式压缩机,包括转子(3)、静子、隔板(11)及平衡盘(13),隔板(11)和静子固定,平衡盘(13)和转子(3)相固定,还包括电磁控制器静子组件(15)和电磁控制器转子组件(17),电磁控制器静子组件(15)包括静子铁芯固定环(151)和静子硅钢片(153),静子铁芯固定环(151)为圆环状,静子硅钢片(153)固定于静子铁芯固定环(151)内壁,若干个静子硅钢片(153)在静子铁芯固定环(151)内壁上周向间隔排列,各静子硅钢片(153)上缠绕有线圈(155),静子铁芯固定环(151)固定于隔板(11)上,电磁控制器转子组件(17)包括转子硅钢片(173),转子硅钢片(173)为圆环状,转子硅钢片(173)固定于平衡盘(13)上。这种带电磁控制器的离心压缩机能够提高转子的稳定性,并可适用于多种透平机械。
Description
带电磁控制器的离心式压缩机
技术领域
本发明涉及一种压缩机, 特别是涉及一种离心式压缩机。
背景技术
离心压缩机是石油开采与炼制、 石油化工及煤化工工业的关键装备。 近年来, 随着其向 高压、 大流量、 高效率方向发展, 使得这种机器的转子的柔性逐步增加。 而大流量需要转子 有比较大的跨距, 这降低了转子的临界转速; 而要提高效率则需要增加转子的转速, 这样使 得转子工作转速同一阶临界转速的比值越来越大; 气体压力的提高, 使得气体作用在转子上 的气流激振力逐步增大; 所有这些因素, 均使得压缩机面临着转子失稳的难题。 如何提高转 子系统的稳定性成为工程科技界近年来不断追求的目标。
转子失稳通常是指当转速达到一定值后处于临界状态, 这时如果遇到微小的扰动, 就有 可能使得转子振动突然加剧, 引起跳车的一种故障。 自上个世纪 60年代以来, 随着透平机械 的功率及转速的升高, 一些在低速、 小功率下表现较弱的问题逐渐变得越来越突出, 其中稳 定性问题显的尤为显著。 在最近的几十年来, 虽然工程界和科技界都对转子的稳定性给予了 高度的关注, 但是失稳的案例还是时有发生。 这种故障是一种比较顽固的故障, 一旦出现就 需要对机组做大的改造。
在这种故障的处理上, 虽然世界上各个透平机械厂商都曾经做出过努力, 例如美国最大 的压缩机公司 Dresser-Rand在平衡盘上采用阻尼密封、 日本三菱在推力盘外侧增加阻尼环、 Elliot公司宣称通过增大转子的轴径来提高转子的稳定性。
美国 Dresser-Rand公司的阻尼密封技术, 这种密封从外形上看类似于蜂窝密封, 但是不 同之处在于蜂窝密封是用哈氏合金经过焊接而成, 而这种阻尼密封为孔式阻尼器密封, 是用 铝制成的, 由于铝材比较软, 因此有比较好的耐碰磨的性能。 经过在多次压缩机的密封改造 中采用这种密封的实际应用经验来看, 这种密封具有比较好的效果。 在密封改造时, 这种密 封的难点在于要求平衡盘或者转子部件的表面是平面, 如果不是这样, 就需要更换平衡盘甚 至对转子进行重新的高速动平衡。
如图 1所述, 带有平衡盘密封的背靠背型离心压缩机, 包括转子 11 '、 叶轮 12'、 平衡盘 13 '、 隔板 14', 在平衡盘上加工有平衡盘密封 15 ', 这种结构的离心压缩机在叶轮的布置上, 由于采用了背靠背型的布置使得流体作用在叶轮上的轴向力可以相互部分抵消, 从而可以减 小平衡盘的面积; 再一方面, 通过背靠背布置, 可以降低平衡盘两侧的压差降低。 以上两方
面的因素, 均能够降低流体流经平衡盘密封的泄露量, 从而提高离心压缩机的效率。 然而, 这种结构的压缩机, 由于平衡盘位于转子的中间, 流体流过平衡盘密封时会产生气流激振力, 该激振力将会给转子系统输入负阻尼, 而转子的一阶正进动模态对该位置的气流激振力尤为 敏感。 因此, 这种布置的转子更容易发生失稳故障。
发明内容
本发明要解决的技术问题是提供一种可以提高转子稳定性的带电磁控制器的离心压缩 机。
为解决上述技术问题, 本发明采用如下技术方案: 一种带电磁控制器的离心压缩机, 包括转子、 静子、 隔板及平衡盘, 隔板和静子相固定, 平衡盘和转子相固定, 还包括电磁控制器静子组件及电磁控制器转子组件, 所述电磁控制器 静子组件包括静子铁芯固定环及静子硅钢片, 静子铁芯固定环为圆环状, 所述静子硅钢片固 定于所述静子铁芯固定环内壁, 并且若干个静子硅钢片在静子铁芯固定环内壁上周向间隔排 列, 所述各静子硅钢片上均缠绕有线圈, 所述静子铁芯固定环固定于所述隔板上, 所述电磁 控制器转子组件包括转子硅钢片, 转子硅钢片为圆环状, 转子硅钢片固定于所述平衡盘上。
本发明带电磁控制器的离心式压缩机, 其中, 所述电磁控制器静子组件还包括静子保持 架, 静子保持架为圆环状, 静子保持架固定于所述静子铁芯固定环外侧, 静子保持架由不导 磁材料制成, 所述隔板、 静子保持架、 静子铁芯固定环的轴向同一侧设有静子固定环, 静子 固定环为片状圆环, 静子固定环和隔板之间设有静子固定螺栓。
本发明带电磁控制器的离心式压缩机, 其中, 所述电磁控制器转子组件还包括转子保持 架, 转子保持架为圆环状并且转子保持架由不导磁材料制成, 所述转子硅钢片固定于所述转 子保持架里侧, 所述转子保持架与所述平衡盘之间设有转子固定环, 转子固定环为片状圆环, 所述转子固定环位于所述转子保持架及所述平衡盘的轴向一侧, 并且转子固定环和所述平衡 盘之间通过转子固定螺栓相固定。
本发明带电磁控制器的离心式压缩机, 其中, 所述各静子硅钢片之间均设有密封体, 所 述各密封体和各静子硅钢片相互连接在所述静子铁芯固定环内壁形成平滑圆柱面, 所述平滑 圆柱面上开有若干沉孔, 沉孔的轴线方向为平滑圆柱面的法线方向。
本发明带电磁控制器的离心式压缩机, 其中, 所述静子铁芯固定环及静子硅钢片一体成 型。
本发明带电磁控制器的离心式压缩机, 其中, 所述静子铁芯固定环、 静子硅钢片为分体
式结构, 所述各静子硅钢片分别通过静子硅钢片固定螺栓固定于所述静子铁芯固定环上, 并 且所述静子硅钢片固定螺栓沿静子铁芯固定环的轴向设置。
本发明带电磁控制器的离心式压缩机, 其中, 所述沉孔的深度为 2-5mm, 所述沉孔的直 径为 2- 8
本发明带电磁控制器的离心式压缩机, 其中, 所述沉孔在平滑圆柱面上均布。
本发明带电磁控制器的离心式压缩机, 其中, 所述若干个静子硅钢片在静子铁芯固定环 内壁上周向均布。
本发明带电磁控制器的离心压缩机, 由于隔板、平衡盘上分别设有电磁控制器静子组件、 电磁控制器转子组件, 因此电磁控制器静子组件中的线圈通电形成可控磁场, 通过控制该磁 场, 给转子施加激振力或振动控制力, 从而提高转子的稳定性。
另外, 由于各静子硅钢片之间均设有密封体, 各密封体相互连接在静子铁芯固定环内壁 形成平滑圆柱面, 平滑圆柱面上开有沉孔, 这些沉孔形成阻尼密封, 该阻尼密封可以替代原 有的压缩机平衡盘密封, 限制气体从密封高压侧向低压侧的流动。
下面结合附图对本发明带电磁控制器的离心压缩机作进一步说明。 附图说明
图 1为现有 "背靠背型"离心压缩机的结构图;
图 2为本发明带电磁控制器的离心压缩机实施例一的结构图;
图 3为本发明带电磁控制器的离心压缩机平衡盘及隔板部分的剖面图;
图 4为本发明带电磁控制器的离心压缩机中静子组件的主视图;
图 5为本发明带电磁控制器的离心压缩机中静子组件的左视图;
图 6为本发明带电磁控制器的离心压缩机中静子组件缠绕线圈后的主视图;
图 7为本发明带电磁控制器的离心压缩机中静子组件插入密封体后的主视图; 图 8为本发明带电磁控制器的离心压缩机中静子组件密封体表面开沉孔后的主视图; 图 9为本发明带电磁控制器的离心压缩机中静子组件密封体表面所开沉孔的排列图; 图 10为本发明带电磁控制器的离心压缩机实施例二的结构图。
具体实施方式
如图 2所示, 本发明带电磁控制器的离心式压缩机的实施例 1, 带电磁控制器的
背型"离心压缩机, 包括转子 03、 静子、 隔板 11、 平衡盘 13、 电磁控制器静子组件 15及电 磁控制器转子组件 17, 隔板 11和静子相固定, 平衡盘 13和转子 03相固定, 如图 3所示, 电磁控制器静子组件 15包括静子铁芯固定环 151、 静子硅钢片 153及静子保持架 152, 如图 4、 5所示, 静子硅钢片 153固定于静子铁芯固定环 151内壁, 并且多个静子硅钢片 153在静 子铁芯固定环 151内壁上周向间隔均匀排列, 如图 6所示, 各静子硅钢片 153上均按照顺时 针或者逆时针方向缠绕有线圈 155, 如图 3所示, 静子保持架 152、静子铁芯固定环 151均为 圆环状, 静子保持架 152设置于静子铁芯固定环 151外侧, 并且静子保持架 152和静子铁芯 固定环 151之间过盈配合, 静子保持架 152由铝或其他不导磁材料制成, 隔板 11、 静子保持 架 152、 静子铁芯固定环 151的轴向同一侧设有静子固定环 16, 静子固定环 16为片状圆环, 静子固定环 16和隔板 11之间设有静子固定螺栓 161, 电磁控制器转子组件 17包括转子保持 架 171、 转子硅钢片 173, 转子保持架 171、 转子硅钢片 173均为圆环状, 并且转子保持架由 不导磁材料制成, 转子硅钢片 173设置于转子保持架 171里侧并且两者之间过盈配合, 转子 保持架 171与平衡盘 13之间设有转子固定环 18, 转子固定环 18为片状圆环, 转子固定环 18 位于转子保持架 171及平衡盘 13的轴向一侧,并且转子固定环 18和平衡盘 13之间通过转子 固定螺栓 175相固定。
如图 7所示, 各静子硅钢片 153之间均设有密封体 14, 密封体 14通常由铝或者铜等软 材料组成,各密封体 14和各静子硅钢片 153相互连接在静子铁芯固定环 151内壁形成平滑圆 柱面 141, 如图 8、 9所示, 平滑圆柱面 141上开有多个沉孔 142, 沉孔 142的轴线方向为平 滑圆柱面 141的法线方向, 沉孔 142的深度为 2-5mm、 直径为 2_8mm, 并且沉孔 142在平滑圆 柱面 141上均布。
如图 3、 4所示, 静子铁芯固定环 151、 静子硅钢片 153为分体式结构, 静子硅钢片 153 通过线切割或冲压的方式加工而成, 各静子硅钢片 153分别通过静子硅钢片固定螺栓 154固 定于静子铁芯固定环 151上, 并且静子硅钢片固定螺栓 154沿静子铁芯固定环 151的轴向设 置。
静子铁芯固定环 151及静子硅钢片 153还可采用线切割的方法加工成一体。
通过在线圈 155中通入电流使得电磁控制器静子硅钢片 153磁化, 形成 N极和 S极, 如 图 6所示, 平滑圆柱面 141上的沉孔 142形成阻尼密封, 通过改变线圈 155中的电流, 给透 平机械的转子施加电磁力。
如图 10所示实施例二, 带电磁控制器的"直列型"离心压缩机, 在隔板 41上固定电磁控 制器静子组件 15, 在平衡盘 42上固定电磁控制器转子组件 17。
对于以上的两个实施例, 其工作原理如下:
磁场是可以在空间传播的, 在磁场的作用下相互不接触的部件之间可以产生一定的作用 力, 本发明带电磁控制器的离心式压缩机, 可以通过控制线圈 155 内的电流来在转子上施加 一个可控的磁场, 通过控制该磁场, 给转子施加一个激振力或者振动控制力。 作用在转子上 的故障力可以写成多个简谐力的合力, 如下式 (1)所示时,
n为整数, ω 为转子的转速, φ1η为激振力的相位, Fln为激振力的幅制。 此时作用在转 子上的电磁控制力应为 P2,
例如, 当故障为不平衡时, η=1 ; 当故障为不对中时, η=1,2;
本发明中的电磁控制器静子组件 15, 由于具有密封功能, 因此可以安装在原透平机械上 的气体密封部位以节省转子轴向空间, 从而在控制过程中, 在转子轴线方向上, 能够让控制 力的位置距离故障力的位置最小。 这样较小的控制力就可以达到控制效果, 在这种情况下, 所需要的电磁轴承的体积就会小, 比较适合在透平机械内部这样紧凑的空间中使用。
以上所述的实施例仅仅是对本发明的优选实施方式进行描述, 并非对本发明的范围进行 限定, 在不脱离本发明设计精神的前提下, 本领域普通技术人员对本发明的技术方案作出的
各种变形和改进, 均应落入本发明权利要求书确定的保护范围内。
工业实用性
本发明带电磁控制器的离心式压缩机可用于多种透平机械, 提高其转子的稳定性, 具有 工业实用性。
Claims
权 利 要 求
1、一种带电磁控制器的离心式压缩机,包括转子(03)、静子、隔板(11)及平衡盘(13), 隔板 (11) 和静子相固定, 平衡盘 (13) 和转子 (03) 相固定, 其特征在于: 还包括电磁控 制器静子组件(15)及电磁控制器转子组件(17), 所述电磁控制器静子组件(15)包括静子 铁芯固定环 (151) 及静子硅钢片 (153), 静子铁芯固定环 (151) 为圆环状, 所述静子硅钢 片 (153) 固定于所述静子铁芯固定环 (151) 内壁, 并且若干个静子硅钢片 (153)在静子铁 芯固定环 (151) 内壁上周向间隔排列, 所述各静子硅钢片 (153) 上均缠绕有线圈 (155), 所述静子铁芯固定环 (151) 固定于所述隔板(11) 上, 所述电磁控制器转子组件(17)包括 转子硅钢片(173), 转子硅钢片(173)为圆环状, 转子硅钢片(173)固定于所述平衡盘(13) 上。
2、根据权利要求 1所述带电磁控制器的离心式压缩机, 其特征在于: 所述电磁控制器静 子组件 (15) 还包括静子保持架 (152), 静子保持架 (152) 为圆环状, 静子保持架 (152) 固定于所述静子铁芯固定环 (151) 外侧, 静子保持架 (152) 由不导磁材料制成, 所述隔板
(11)、 静子保持架 (152)、 静子铁芯固定环 (151) 的轴向同一侧设有静子固定环 (16), 静 子固定环 (16) 为片状圆环, 静子固定环 (16)和隔板 (11)之间设有静子固定螺栓 (161)。
3、根据权利要求 2所述带电磁控制器的离心式压缩机, 其特征在于: 所述电磁控制器转 子组件(17)还包括转子保持架(171), 转子保持架 (171) 为圆环状并且转子保持架由不导 磁材料制成, 所述转子硅钢片 (173) 固定于所述转子保持架 (171) 里侧, 所述转子保持架
(171) 与所述平衡盘 (13) 之间设有转子固定环 (18), 转子固定环 (18) 为片状圆环, 所 述转子固定环 (18)位于所述转子保持架 (171)及所述平衡盘 (13) 的轴向一侧, 并且转子 固定环 (18) 和所述平衡盘 (13) 之间通过转子固定螺栓 (175) 相固定。
4、根据权利要求 3所述带电磁控制器的离心式压缩机, 其特征在于: 所述各静子硅钢片 (153)之间均设有密封体 (14), 所述各密封体 (14)和各静子硅钢片 (153)相互连接在所 述静子铁芯固定环 (151) 内壁形成平滑圆柱面 (141), 所述平滑圆柱面 (141) 上开有若干 沉孔 (142), 沉孔的轴线方向为平滑圆柱面 (141) 的法线方向。
5、根据权利要求 4所述带电磁控制器的离心式压缩机, 其特征在于: 所述静子铁芯固定 环 (151) 及静子硅钢片 (153) —体成型。
6、根据权利要求 5所述带电磁控制器的离心式压缩机, 其特征在于: 所述静子铁芯固定 环 (151)、 静子硅钢片 (153) 为分体式结构, 所述各静子硅钢片 (153) 分别通过静子硅钢 片固定螺栓( 154)固定于所述静子铁芯固定环( 151 )上,并且所述静子硅钢片固定螺栓( 154) 沿静子铁芯固定环 (151) 的轴向设置。
7、根据权利要求 5或 6所述带电磁控制器的离心式压缩机,其特征在于:所述沉孔(142) 的深度为 2- 5 所述沉孔 (142) 的直径为 2- 8
8、 根据权利要求 7所述带电磁控制器的离心式压缩机, 其特征在于: 所述沉孔 (142) 在平滑圆柱面 (141) 上均布。
9、根据权利要求 8所述带电磁控制器的离心式压缩机, 其特征在于: 所述若干个静子硅 钢片 (153) 在静子铁芯固定环 (151) 内壁上周向均布。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179974.6 | 2013-05-15 | ||
| CN201310179974.6A CN103267024B (zh) | 2013-05-15 | 2013-05-15 | 一种带电磁控制器的离心式压缩机 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014183476A1 true WO2014183476A1 (zh) | 2014-11-20 |
Family
ID=49010672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2014/070427 Ceased WO2014183476A1 (zh) | 2013-05-15 | 2014-01-10 | 带电磁控制器的离心式压缩机 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103267024B (zh) |
| WO (1) | WO2014183476A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267024B (zh) * | 2013-05-15 | 2015-07-22 | 北京化工大学 | 一种带电磁控制器的离心式压缩机 |
| CN106870738A (zh) * | 2017-03-06 | 2017-06-20 | 北京化工大学 | 一种平衡盘密封减振装置 |
| CN120777225B (zh) * | 2025-09-03 | 2025-11-11 | 上海环保(集团)有限公司 | 一种热泵用可调篦齿密封结构及轴向力调节方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030816A (zh) * | 1987-07-23 | 1989-02-01 | 三菱重工业株式会社 | 离心式压缩机 |
| FR2686657A1 (fr) * | 1992-01-14 | 1993-07-30 | Mitsubishi Heavy Ind Ltd | Pompe motorisee, notamment pour carburant. |
| US6171078B1 (en) * | 1997-09-04 | 2001-01-09 | Sulzer Electronics Ag | Centrifugal pump |
| TW201013053A (en) * | 2008-07-31 | 2010-04-01 | Oerlikon Leybold Vacuum Gmbh | Vacuum pump |
| CN101949386A (zh) * | 2010-09-29 | 2011-01-19 | 北京化工大学 | 一种离心压缩机稳定性控制装置 |
| CN103267024A (zh) * | 2013-05-15 | 2013-08-28 | 北京化工大学 | 一种带电磁控制器的离心式压缩机 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02275143A (ja) * | 1989-04-17 | 1990-11-09 | Hitachi Ltd | 回転機械用電磁ダンパーシール装置 |
| CN102200140A (zh) * | 2011-06-30 | 2011-09-28 | 兖矿鲁南化肥厂 | 设有阻尼密封的离心压缩机 |
-
2013
- 2013-05-15 CN CN201310179974.6A patent/CN103267024B/zh not_active Expired - Fee Related
-
2014
- 2014-01-10 WO PCT/CN2014/070427 patent/WO2014183476A1/zh not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030816A (zh) * | 1987-07-23 | 1989-02-01 | 三菱重工业株式会社 | 离心式压缩机 |
| FR2686657A1 (fr) * | 1992-01-14 | 1993-07-30 | Mitsubishi Heavy Ind Ltd | Pompe motorisee, notamment pour carburant. |
| US6171078B1 (en) * | 1997-09-04 | 2001-01-09 | Sulzer Electronics Ag | Centrifugal pump |
| TW201013053A (en) * | 2008-07-31 | 2010-04-01 | Oerlikon Leybold Vacuum Gmbh | Vacuum pump |
| CN101949386A (zh) * | 2010-09-29 | 2011-01-19 | 北京化工大学 | 一种离心压缩机稳定性控制装置 |
| CN103267024A (zh) * | 2013-05-15 | 2013-08-28 | 北京化工大学 | 一种带电磁控制器的离心式压缩机 |
Non-Patent Citations (1)
| Title |
|---|
| HUANG, LIQUAN ET AL.: "Rotor Automatical Balancing Method and test based on Electromagnetic Self-recovery Force", JOURNAL OF VIBRATION AND SHOCK, vol. 30, no. 01, 31 December 2011 (2011-12-31) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267024B (zh) | 2015-07-22 |
| CN103267024A (zh) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019119973A1 (zh) | 一种磁悬浮轴承、磁悬浮转子支承组件和压缩机 | |
| CN104747595B (zh) | 高可靠性长寿命气体动压轴承 | |
| CN101949386B (zh) | 一种离心压缩机稳定性控制装置 | |
| JP2022544153A (ja) | コンプレッサ、回転子システム及びマイクロガスタービン | |
| US9334866B2 (en) | System and apparatus for reducing thrust forces acting on a compressor rotor | |
| CN108716480A (zh) | 一种磁悬浮结构及风机 | |
| CN102251991A (zh) | 屏蔽泵轴向力平衡装置及方法 | |
| CN110249145A (zh) | 用于轴慢滚动控制的推力主动磁轴承 | |
| WO2014183476A1 (zh) | 带电磁控制器的离心式压缩机 | |
| TW201024546A (en) | Oil-free centrifugal blade compressor and magnetic-gas bearing thereof | |
| CN104024641A (zh) | 具有产生轴向推力的双吸叶轮的泵 | |
| CN114165456B (zh) | 一种基于磁液双悬浮结构的离心泵 | |
| JP2015515248A (ja) | 真空排気装置を有する電気機械式フライホイール | |
| JP2012172756A (ja) | 磁気軸受装置、および回転機械 | |
| CN108843792B (zh) | 一种对称阶梯型磁流体密封装置 | |
| JP2016188590A (ja) | 遠心式ポンプ装置 | |
| CN102537048A (zh) | 一种可控制径向扭转的轴向磁轴承 | |
| CN103256080A (zh) | 一种带密封功能的电磁控制器 | |
| CN210830147U (zh) | 一种混合式气体动压轴承 | |
| CN113719540A (zh) | 具有单向高承载力密度的非对称轴向磁轴承装置 | |
| US20240003357A1 (en) | Centrifugal compressor for refrigeration system and refrigeration system | |
| CN209262072U (zh) | 一种磁悬浮轴承径向保护结构 | |
| CN104214218A (zh) | 能够平衡磁悬浮轴承中静态载荷的方法及其结构 | |
| JP7475301B2 (ja) | 電動機システム、ターボ圧縮機、及び冷凍装置 | |
| CN100460697C (zh) | 永磁与涡轮复合轴承 |
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: 14797325 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14797325 Country of ref document: EP Kind code of ref document: A1 |


