CN109812831A - A kind of magnetic suspension support structure of air preheater diaphragm seal - Google Patents
A kind of magnetic suspension support structure of air preheater diaphragm seal 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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- China
- Prior art keywords
- permanent magnet
- diaphragm seal
- air preheater
- annular permanent
- structural body
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- 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
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Abstract
The invention discloses a kind of magnetic suspension support structures of air preheater diaphragm seal, belong to energy conservation and environmental protection.Including several diaphragm seals below fanning strip, one end is fixed on air preheater central tube, the other end is equipped with diaphragm seal permanent magnet, wherein diaphragm seal is embedded in seal groove, annular permanent magnet structural body is equipped with below diaphragm seal permanent magnet, it is arranged on annular permanent magnet fixed mechanism below annular permanent magnet structural body, the annular permanent magnet fixed mechanism other end connects air preheater shell, and annular permanent magnet structural body is that several permanent magnets are formed by the combination fixation of annular permanent magnet fixed mechanism.Due to homopolar-repulsion, the free end of permanent magnet is installed in diaphragm seal, the power upward by one remains unchanged the distance between diaphragm seal and fanning strip in length direction to overcome the amount of deflection of diaphragm seal itself.Clever structure, rationally, it is simple, maintenance is small, without sound component friction, substantially increases leakproofness.
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 diaphragm seal |
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 diaphragm seal |
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 diaphragm seal |
Country Status (1)
| Country | Link |
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| 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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