CN109812831A - A kind of magnetic suspension support structure of air preheater sealing sheet - Google Patents
A kind of magnetic suspension support structure of air preheater sealing sheet Download PDFInfo
- Publication number
- CN109812831A CN109812831A CN201910202427.2A CN201910202427A CN109812831A CN 109812831 A CN109812831 A CN 109812831A CN 201910202427 A CN201910202427 A CN 201910202427A CN 109812831 A CN109812831 A CN 109812831A
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- CN
- China
- Prior art keywords
- permanent magnet
- air preheater
- diaphragm seal
- sealing sheet
- sealing
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 239000000725 suspension Substances 0.000 title claims abstract description 10
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
Abstract
本发明公开了一种空预器密封片的磁悬浮支撑结构，属于节能环保领域。包括若干位于扇形板下方的密封片，其一端固定于空预器中心筒上，另一端安装有密封片永磁体，其中密封片嵌入于密封槽内，密封片永磁体下方设有环形永磁结构体，环形永磁结构体下方设置在环形永磁固定机构上，环形永磁固定机构另一端连接空预器壳体，环形永磁结构体为若干永磁体通过环形永磁固定机构组合固定而成。由于同极相斥，在密封片安装有永磁体的自由端，受到一个向上的力，从而克服密封片自身的挠度，使密封片与扇形板之间的距离在长度方向保持不变。结构巧妙、合理、简单，维护量小，没有动静组件摩擦，大大提高了密封性。
The invention discloses a magnetic suspension support structure of a sealing sheet of an air preheater, which belongs to the field of energy saving and environmental protection. It includes a number of sealing sheets located under the fan-shaped plate, one end of which is fixed on the central cylinder of the air preheater, and the other end is installed with a sealing sheet permanent magnet, wherein the sealing sheet is embedded in the sealing groove, and a ring-shaped permanent magnet structure is arranged under the permanent magnet of the sealing sheet The ring-shaped permanent magnet structure body is arranged on the ring-shaped permanent magnet fixing mechanism, and the other end of the ring-shaped permanent magnet fixing mechanism is connected to the air preheater shell. . Due to the repulsion of the same poles, the free end of the permanent magnet installed on the sealing sheet is subjected to an upward force, thereby overcoming the deflection of the sealing sheet itself, so that the distance between the sealing sheet and the sector plate remains unchanged in the length direction. The structure is ingenious, reasonable and simple, the maintenance is small, and there is no friction between dynamic and static components, which greatly improves the sealing performance.
Description
[technical field]
The invention belongs to energy conservation and environmental protection, it is related to a kind of magnetic suspension support structure of air preheater diaphragm seal, especially one
The magnetic suspension support structure of kind air preheater diaphragm seal.
[background technique]
In the air and gas system of the industries coal-burning boiler such as thermal power generation, chemical industry, rotary regenerative air preheater is common cigarette
Wind heat exchange equipment is air needed for being heated burning using the heat of boiler smoke, the efficiency of boiler is improved with this.It passes
System rigid seal piece is fixed on rotor partition by bolt segmentation, as unit develops to large capacity direction, air preheater
Root diameter constantly increases, and the length of diaphragm seal also increases, and thus the deflection of bring diaphragm seal increases.
Currently, rotary regenerative air heater central tube is fixed on for one end, and the diaphragm seal of other end unbraced structure, due to
It is longer (being greater than 4 meters) to seal leaf length, diaphragm seal inevitably generates certain amount of deflection, influences sealing effect.
[summary of the invention]
It is an object of the invention to overcome the above-mentioned prior art, a kind of magnetcisuspension over draft of air preheater diaphragm seal is provided
Support structure.To improve sealing effect, sealing leaf length bring deflection is reduced.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of magnetic suspension support structure of air preheater diaphragm seal, including several diaphragm seals below fanning strip, one
End is fixed on air preheater central tube, and the other end is equipped with diaphragm seal permanent magnet, and wherein diaphragm seal is embedded in seal groove, sealing
It is equipped with annular permanent magnet structural body below piece permanent magnet, is arranged on annular permanent magnet fixed mechanism below annular permanent magnet structural body, ring
The shape permanent magnetism fixed mechanism other end connects air preheater shell.
A further improvement of the present invention lies in that:
Diaphragm seal permanent magnet and annular permanent magnet structural body are fire resistant permanent magnet.
Annular permanent magnet structural body is that several permanent magnets are formed by the combination fixation of annular permanent magnet fixed mechanism.
Compared with prior art, the invention has the following advantages:
Diaphragm seal permanent magnet is installed in the free end of diaphragm seal in the present invention, is equipped with ring immediately below diaphragm seal permanent magnet
The polarity of shape permanent-magnet structure body, diaphragm seal permanent magnet is identical as the polarity of annular permanent magnet structural body, due to homopolar-repulsion, is sealing
Piece is equipped with the free end of permanent magnet, the power upward by one, to overcome the amount of deflection of diaphragm seal itself, makes diaphragm seal and fan
The distance between shape plate is remained unchanged in length direction.Principle is reliable, structure is simple, does not have the friction of sound component, service life
It is long.
Further, annular permanent magnet structural body is that several permanent magnets are formed by the combination fixation of annular permanent magnet fixed mechanism,
Facilitate manufacture, processing and installation.
[Detailed description of the invention]
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is annular permanent magnet structural body partial structural diagram of the invention.
Wherein: 1- air preheater central tube；2- air preheater rotor；3- fanning strip；4- diaphragm seal；5- seal groove；6- diaphragm seal
Permanent magnet；7- annular permanent magnet structural body；8- air preheater shell；9- annular permanent magnet fixed mechanism.
[specific embodiment]
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, the embodiment being not all of, and it is not intended to limit range disclosed by the invention.In addition, with
In lower explanation, descriptions of well-known structures and technologies are omitted, obscures concept disclosed by the invention to avoid unnecessary.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment should fall within the scope of the present invention.
The various structural schematic diagrams for disclosing embodiment according to the present invention are shown in the attached drawings.These figures are not in proportion
It draws, wherein some details are magnified for the purpose of clear expression, and some details may be omitted.As shown in the figure
The shape in various regions, layer and relative size, the positional relationship between them out is merely exemplary, in practice may be due to
Manufacturing tolerance or technical restriction and be deviated, and those skilled in the art may be additionally designed as required have not
Similar shape, size, the regions/layers of relative position.
In context disclosed by the invention, when one layer/element is referred to as located at another layer/element "upper", the layer/element
Can may exist intermediate layer/element on another layer/element or between them.In addition, if in a kind of court
One layer/element is located at another layer/element "upper" in, then when turn towards when, the layer/element can be located at another layer/
Element "lower".
The invention will be described in further detail with reference to the accompanying drawing:
Referring to Fig. 1 and 2, the magnetic suspension support structure of air preheater diaphragm seal of the present invention is set to the upper of air preheater rotor 2
Side comprising several diaphragm seals 4 positioned at 3 lower section of fanning strip, 4 one end of diaphragm seal (fixing end) is fixed on air preheater central tube 1
On, the other end (free end) installs diaphragm seal permanent magnet 6, and diaphragm seal 4 is embedded in seal groove 5, diaphragm seal permanent magnet 6 just
Lower section is equipped with annular permanent magnet structural body 7, and is fixed on air preheater shell 8 by annular permanent magnet fixed mechanism 9.Due to homopolarity
Repel each other, the free end of permanent magnet is installed in diaphragm seal, the power upward by one, thus overcome the amount of deflection of diaphragm seal itself,
Remain unchanged the distance between diaphragm seal and fanning strip in length direction.
Wherein annular permanent magnet structural body 7 is formed for several permanent magnets by the combination fixation of annular permanent magnet fixed mechanism 9, and close
Mounting permanent magnet 6 and annular permanent magnet structural body 7 are fire resistant permanent magnet, easily manufactured, simple to install.
Working principle of the invention is as follows:
The present invention is mainly to utilize the principle of permanent magnet homopolar-repulsion, in the free end of diaphragm seal installation permanent magnet, and
Annular permanent-magnet structure body is installed immediately below it, using homopolar-repulsion principle, applies one in the free end of diaphragm seal and is produced by magnetic force
Thus raw power resists the amount of deflection of diaphragm seal itself, remains unchanged the distance between diaphragm seal and fanning strip in length direction.
The present invention can be used for and the free end of Fen Cang, three Fen Cang and four points of storehouse rotary regenerative air preheater diaphragm seals support,
Clever structure, rationally, it is simple, maintenance is small, is the important wound of rotary regenerative air preheater diaphragm seal without sound component friction
Newly.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (3)
1. a kind of magnetic suspension support structure of air preheater diaphragm seal, which is characterized in that be located at below fanning strip (3) including several
Diaphragm seal (4), one end are fixed on air preheater central tube (1), and the other end is equipped with diaphragm seal permanent magnet (6), wherein sealing
Piece is embedded in seal groove (5), is equipped with annular permanent magnet structural body (7) below diaphragm seal permanent magnet (6), annular permanent magnet structural body
(7) lower section is arranged on annular permanent magnet fixed mechanism (9), and annular permanent magnet fixed mechanism (9) other end connects air preheater shell
(8)。
2. a kind of magnetic suspension support structure of air preheater diaphragm seal as described in claim 1, which is characterized in that diaphragm seal permanent magnet
(6) and annular permanent magnet structural body (7) is fire resistant permanent magnet.
3. a kind of magnetic suspension support structure of air preheater diaphragm seal as described in claim 1, which is characterized in that annular permanent magnet structure
Body (7) is that several permanent magnets are formed by annular permanent magnet fixed mechanism (9) combination fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202427.2A CN109812831A (en) | 2019-03-11 | 2019-03-11 | A kind of magnetic suspension support structure of air preheater sealing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202427.2A CN109812831A (en) | 2019-03-11 | 2019-03-11 | A kind of magnetic suspension support structure of air preheater sealing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109812831A true CN109812831A (en) | 2019-05-28 |
Family
ID=66609224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202427.2A Pending CN109812831A (en) | 2019-03-11 | 2019-03-11 | A kind of magnetic suspension support structure of air preheater sealing sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285443A (en) * | 2019-06-27 | 2019-09-27 | 西安西热节能技术有限公司 | A kind of magnetic-type support construction of air preheater diaphragm seal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137286A (en) * | 1991-08-23 | 1992-08-11 | General Electric Company | Permanent magnet floating shaft seal |
| US20040113502A1 (en) * | 2000-10-25 | 2004-06-17 | Guo-Kun Li | Magnetic suspension bearing |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
| CN107355810A (en) * | 2017-08-31 | 2017-11-17 | 西安西热节能技术有限公司 | A kind of rotary regenerative air preheater sealing structure |
| CN109059036A (en) * | 2018-07-10 | 2018-12-21 | 华中科技大学 | A kind of rotary regenerative air preheater magnet-wheel apex combustion seal |
| CN209782697U (en) * | 2019-03-11 | 2019-12-13 | 西安西热节能技术有限公司 | Magnetic suspension supporting structure of air preheater sealing fin |
-
2019
- 2019-03-11 CN CN201910202427.2A patent/CN109812831A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137286A (en) * | 1991-08-23 | 1992-08-11 | General Electric Company | Permanent magnet floating shaft seal |
| US20040113502A1 (en) * | 2000-10-25 | 2004-06-17 | Guo-Kun Li | Magnetic suspension bearing |
| CN101776146A (en) * | 2010-03-02 | 2010-07-14 | 北京交通大学 | Large-diameter large-gap magnetic liquid static seal structure |
| CN107355810A (en) * | 2017-08-31 | 2017-11-17 | 西安西热节能技术有限公司 | A kind of rotary regenerative air preheater sealing structure |
| CN109059036A (en) * | 2018-07-10 | 2018-12-21 | 华中科技大学 | A kind of rotary regenerative air preheater magnet-wheel apex combustion seal |
| CN209782697U (en) * | 2019-03-11 | 2019-12-13 | 西安西热节能技术有限公司 | Magnetic suspension supporting structure of air preheater sealing fin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285443A (en) * | 2019-06-27 | 2019-09-27 | 西安西热节能技术有限公司 | A kind of magnetic-type support construction of air preheater diaphragm seal |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |