CN104864764A - Bypass mutual-lock sealing structure for air pre-heater - Google Patents
Bypass mutual-lock sealing structure for air pre-heater Download PDFInfo
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- CN104864764A CN104864764A CN201510228443.0A CN201510228443A CN104864764A CN 104864764 A CN104864764 A CN 104864764A CN 201510228443 A CN201510228443 A CN 201510228443A CN 104864764 A CN104864764 A CN 104864764A
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- diaphragm seal
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- breach
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- air preheater
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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 bypass mutual-lock sealing structure for an air pre-heater. The bypass mutual-lock sealing structure comprises a substrate and a sealing part fixed at one side of the substrate. The sealing part comprises multiple sealing pieces which are arranged side by side and obliquely relative to the substrate. Four sides of each sealing piece are respectively a gap lateral side, a plain-end lateral side, an isometric arc side and a fixing lateral side. Each gap lateral side is disposed at the opposite side to each plain-end lateral side and provided with a gap. Each isometric arc side is an isometric arc surface. One side, close to each fixing lateral side, of each sealing piece is fixed onto the substrate. In adjacent sealing pieces, a plain-end lateral side of one sealing piece is arranged below a gap lateral side of the other sealing piece in an overlapping mode. The above plain-end lateral side is in surface contact with an edge of a gap of the above gap lateral side. The sealing pieces are provided with strip-shaped deformed gaps. The bypass mutual-lock sealing structure for the air pre-heater has following beneficial effects: the bypass mutual-lock sealing structure is easily deformed and has good structural stability, sealing effect and long service lifetime under acting forces of sealing rings in a rotor circumferential direction.
Description
Technical field
The present invention relates to air preheater sealing component structural field, particularly relate to a kind of air preheater bypass interlocking-type hermetically-sealed construction.
Background technology
Rotary regenerative air preheater is called for short air preheater, it is the heat-exchange apparatus of large-sized boiler, due to relative to tubular air preheater, there is compact conformation, volume is little, heat-transfer surface density is high, overall mass is light, metal consumption is few, arrange the features such as easy for installation, cold end corrosion is lighter, station boiler is widely used.Air preheater be the flue gas heat utilizing boiler to discharge come preheating enter boiler participate in burning needed for air, or as the reclaimer of boiler smoke heat, so that above heat to be used as the equipment of other purposes such as fuel dehumidifying, heating, the object that this equipment is arranged improves the efficiency of boiler.The air leak rate of air curtain of air preheater is the important indicator affecting boiler efficiency, and the above air leak rate of air curtain of air preheater of the prior art is generally 6%-8% under normal circumstances, and poor sealing is even up to 20%, so the efficiency impact of Sealing Technology on boiler of air preheater is large.
In prior art, in air preheater, flue gas and air generally adopt adverse current, and the one end arranging gas approach and air outlet slit in air preheater is defined as hot junction, and the other end of air preheater is cold junction.In air preheater working rotor process, be inevitably superimposed upon because of hot shaping and gravity deformation the mushroom deformation that rotor is formed.For avoiding air preheater course of work rotor and stator contact, the preset clearance between general rotor and stator is comparatively large, and this just makes the axial seal structure of rotor control to serve vital effect to the air leak rate of air curtain of air preheater.Bypass seal and circumference bypass seal, bypass seal is when air preheater is without effective axial sealer, and it can prevent air and flue gas from being passed through in shell by rotor circumference, and without heating surface; When axial seal imprecision, leaked in flue by rotor circumference in air side, cause air directly to leak.During prior art Practical Project uses, service life and the sealing stability of the bypass seal of air preheater await further raising.
Summary of the invention
In using for above-mentioned prior art Practical Project, the service life of the bypass seal of air preheater and sealing stability await the problem improved further, the invention provides a kind of air preheater bypass interlocking-type hermetically-sealed construction.
For solving the problem, air preheater bypass interlocking-type hermetically-sealed construction provided by the invention solves problem by following technical essential: air preheater bypass interlocking-type hermetically-sealed construction, comprise substrate and the sealing being fixed on substrate side, described sealing comprises multiple diaphragm seal, described diaphragm seal is arranged side by side, and diaphragm seal tilts relative to substrate, four sides of diaphragm seal are respectively breach side, flat mouth side, isometrical arc-shaped edges and fixing side, described breach side is positioned at the offside of flat mouth side, and breach side is provided with breach, isometrical arc-shaped edges is isometrical arcwall face, diaphragm seal is fixed on substrate near the side of fixing side, in adjacent diaphragm seal, the flat mouth side of one of them diaphragm seal is erected on below the breach side of another diaphragm seal, and this flat mouth side is that face contacts with the edge of breach on this breach side,
Described diaphragm seal is also provided with the distortion breach in strip, one end of described distortion breach is crossing with isometrical arc-shaped edges, and the length direction of described distortion breach is positioned at the spacing direction of isometrical arc-shaped edges and fixing side.
Concrete, the substrate of setting is for fixing multiple diaphragm seal and the stator by substrate, the present invention being fixed on air preheater; The isometrical arc-shaped edges be arranged on diaphragm seal seals for being formed with the sealing ring in rotor circumference direction; Curvature corresponding to isometrical arc-shaped edges is between rotor between extraneous and diameter of stator bore; The version that diaphragm seal is obliquely installed relative to substrate, be convenient to realize in the process of rotor mushroom deformation, the side action of the sealing ring in periphery of rotor direction is in the part of sealing surface near isometrical arc-shaped edges, diaphragm seal generation elastic deformation to such an extent as to the isometrical arc-shaped edges of diaphragm seal can contact with the sealing ring in rotor circumference direction all the time, and above technique is by being installed as free end towards cold junction by the diaphragm seal of hot end of rotor, the diaphragm seal of rotor cold junction is installed as free end towards hot junction and apply primary stress; As preferred version, in installation process, be set to diaphragm seal rotor and form a full circle week.
In the present invention, be set to: in adjacent diaphragm seal, the flat mouth side of one of them diaphragm seal is erected on below the breach side of another diaphragm seal, and this flat mouth side is the version that face contacts with the edge of breach on this breach side, what diaphragm seal adjacent was above overlapped by breach side concave portion sets up form, can in the stressed process of each diaphragm seal, particularly in the uneven loading process of rotor deformation, between adjacent diaphragm seal, overlap restricts mutually, avoid that single diaphragm seal deflection is excessive causes plastic deformation, local leakage amount is large, the defects such as diaphragm seal material fatiguability inefficacy, this flat mouth side and the edge of breach on this breach side are in the version that contacts of face, this contact surface is preferably fitted completely with this flat mouth side under diaphragm seal free state, when diaphragm seal is heated with free end pressurized, the thermal expansion of diaphragm seal can fill up the gap produced on breach again preferably, the diaphragm seal of above version and bonding relation, make the hermetically-sealed construction for realizing air preheater bypass seal finally be similar to an annular sealing ring, and the change width of sealing ring take rotor deformation as reference quantity, and strong to above reference quantity adaptive faculty, the distortion breach simultaneously each diaphragm seal arranged also provides expansion clearance for the thermal stress deformation for diaphragm seal, be beneficial to the maintenance of the present invention's each diaphragm seal shape in the process of Long-Time Service, preferred described distortion breach is the V-notch of opening to diaphragm seal free end.
Further technical scheme is:
For ease of the installation of the present invention in concrete utilization, the full circle ring that described substrate is a full circle ring or is spliced by multistage arc, the end face of adjacent arc is face contact, and contact surface is positioned at the radial direction of full circle ring, described diaphragm seal is fixed on the inner side of full circle ring, and the isometrical arc-shaped edges of all diaphragm seals is all positioned at circumferentially same.
For ease of the replacing of single diaphragm seal and position, output length adjustment, also comprise fixture block and many connecting bolts, described diaphragm seal is all folded between bolted fixture block and substrate.
For ease of forming multiple-sealed ring on the axial direction of air preheater rotor, be beneficial to the slip that passes into others' hands reducing air preheater, the more than row of diaphragm seal on substrate, and the diaphragm seal free end be in row is contour, the free end end of different row's diaphragm seal is positioned on differing heights.
For reduce diaphragm seal with the rate of wear in rotor contact process, described diaphragm seal is two rows, and row's diaphragm seal is wherein fixed on another row's diaphragm seal, the row free end end for diaphragm seal that free end is higher and the spacing of substrate are greater than another and arrange the free end end of diaphragm seal and the spacing of substrate, and the diaphragm seal thickness sentencing upside is thinner than the diaphragm seal being in downside.In above structure; because the diaphragm seal thickness being in upside is less; free end is closer to rotor simultaneously; therefore sealing ring in periphery of rotor direction is when contacting with the diaphragm seal being in upside; the power that the diaphragm seal of upside is subject to forces the common part generation elastic deformation of two row's diaphragm seals; interaction force with the sealing ring in periphery of rotor direction last with the diaphragm seal free end reducing to be in downside, reaches the technique effect of thicker diaphragm seal on the downside of protection.
As being a kind ofly convenient to draw materials, the comprehensive preferred version of the performance such as intensity, rigidity and wearability, described diaphragm seal be thickness between 1 to 2.5mm, the trade mark is the steel plate of 15CrMn.The described trade mark: 15CrMn is derived from GB/T 3077-2006.
The present invention has following beneficial effect:
The invention discloses a kind of air preheater bypass interlocking-type hermetically-sealed construction, the substrate of setting is for fixing multiple diaphragm seal and the stator by substrate, the present invention being fixed on air preheater; The isometrical arc-shaped edges be arranged on diaphragm seal seals for being formed with the sealing ring in rotor circumference direction; Curvature corresponding to isometrical arc-shaped edges is between rotor between extraneous and diameter of stator bore; The version that diaphragm seal is obliquely installed relative to substrate, be convenient to realize in the process of rotor mushroom deformation, the side action of the sealing ring in periphery of rotor direction is in the part of sealing surface near isometrical arc-shaped edges, diaphragm seal generation elastic deformation to such an extent as to the isometrical arc-shaped edges of diaphragm seal can contact with the sealing ring in rotor circumference direction all the time, and above technique is by being installed as free end towards cold junction by the diaphragm seal of hot end of rotor, the diaphragm seal of rotor cold junction is installed as free end towards hot junction and apply primary stress; As preferred version, in installation process, be set to diaphragm seal rotor and form a full circle week.
In the present invention, be set to: in adjacent diaphragm seal, the flat mouth side of one of them diaphragm seal is erected on below the breach side of another diaphragm seal, and this flat mouth side is the version that face contacts with the edge of breach on this breach side, what diaphragm seal adjacent was above overlapped by breach side concave portion sets up form, can in the stressed process of each diaphragm seal, particularly in the uneven loading process of rotor deformation, between adjacent diaphragm seal, overlap restricts mutually, avoid that single diaphragm seal deflection is excessive causes plastic deformation, local leakage amount is large, the defects such as diaphragm seal material fatiguability inefficacy, this flat mouth side and the edge of breach on this breach side are in the version that contacts of face, this contact surface is preferably fitted completely with this flat mouth side under diaphragm seal free state, when diaphragm seal is heated with free end pressurized, the thermal expansion of diaphragm seal can fill up the gap produced on breach again preferably, the diaphragm seal of above version and bonding relation, make the hermetically-sealed construction for realizing air preheater bypass seal finally be similar to an annular sealing ring, and the change width of sealing ring take rotor deformation as reference quantity, and strong to above reference quantity adaptive faculty, the distortion breach simultaneously each diaphragm seal arranged also provides expansion clearance for the thermal stress deformation for diaphragm seal, is beneficial to the maintenance of the present invention's each diaphragm seal shape in the process of Long-Time Service.
Therefore the present invention is out of shape easily under the active force of the sealing ring in periphery of rotor direction, structural stability is good, good sealing effect, long service life.
Accompanying drawing explanation
Fig. 1 is in air preheater bypass interlocking-type hermetically-sealed construction of the present invention, a structural representation adopting splicing form to form ring-type air preheater bypass seal specific embodiment;
Fig. 2 is in air preheater bypass interlocking-type hermetically-sealed construction of the present invention, a structural representation adopting full circle cyclic group plate to form ring-type air preheater bypass seal specific embodiment;
Fig. 3 is in air preheater bypass interlocking-type hermetically-sealed construction of the present invention, the structural representation of a diaphragm seal specific embodiment;
Fig. 4 is in air preheater bypass interlocking-type hermetically-sealed construction of the present invention, the scheme of installation of a single diaphragm seal specific embodiment of employing;
Fig. 5 is in air preheater bypass interlocking-type hermetically-sealed construction of the present invention, the scheme of installation of a double diaphragm seal specific embodiment of employing.
Figure acceptance of the bid note is respectively: 1, substrate, and 2, fixture block, 3, connecting bolt, 4, diaphragm seal, 41, breach, 42, breach side, 43, flat mouth side, 44, isometrical arc-shaped edges, 45, fixing side, 46, distortion breach.
Detailed description of the invention
The invention provides a kind of air preheater bypass interlocking-type hermetically-sealed construction, for solving: during prior art Practical Project uses, the service life of the bypass seal of air preheater and sealing stability await the problem improved further.Following technique effect can be reached: this hermetically-sealed construction is out of shape easily under the active force of the sealing ring in periphery of rotor direction, structural stability is good, good sealing effect, long service life by structure provided by the invention.
Below in conjunction with embodiment, the present invention is described in further detail, but the present invention is not limited only to following examples:
Embodiment 1:
As shown in Figures 1 to 4, air preheater bypass interlocking-type hermetically-sealed construction, comprise substrate 1 and the sealing being fixed on substrate 1 side, described sealing comprises multiple diaphragm seal 4, described diaphragm seal 4 is arranged side by side, and diaphragm seal 4 tilts relative to substrate 1, four sides of diaphragm seal 4 are respectively breach side 42, flat mouth side 43, isometrical arc-shaped edges 44 and fixing side 45, described breach side 42 is positioned at the offside of flat mouth side 43, and breach side 42 is provided with breach 41, isometrical arc-shaped edges 44 is isometrical arcwall face, diaphragm seal 4 is fixed on substrate 1 near the side of fixing side 45, in adjacent diaphragm seal 4, the flat mouth side 43 of one of them diaphragm seal 4 is erected on the breach side less than 42 of another diaphragm seal 4, and this flat mouth side 43 is that face contacts with the edge of breach 41 on this breach side 42,
Described diaphragm seal 4 is also provided with the distortion breach 46 in strip, one end of described distortion breach 46 is crossing with isometrical arc-shaped edges 44, and the length direction of described distortion breach 46 is positioned at the spacing direction of isometrical arc-shaped edges 44 and fixing side 45.
Concrete, in the present embodiment, the substrate 1 of setting is for fixing multiple diaphragm seal 4 and the stator by substrate 1, the present invention being fixed on air preheater; The isometrical arc-shaped edges 44 be arranged on diaphragm seal 4 seals for being formed with the sealing ring in rotor circumference direction; The curvature of isometrical arc-shaped edges 44 correspondence is between the rotor external world and diameter of stator bore; The version that diaphragm seal 4 is obliquely installed relative to substrate 1, be convenient to realize in the process of rotor mushroom deformation, the side action of the sealing ring in periphery of rotor direction is in the part of sealing surface near isometrical arc-shaped edges 44, elastic deformation occurs diaphragm seal 4 to such an extent as to the isometrical arc-shaped edges 44 of diaphragm seal 4 can contact with the sealing ring in rotor circumference direction all the time, and above technique is by being installed as free end towards cold junction by the diaphragm seal 4 of hot end of rotor, the diaphragm seal 4 of rotor cold junction is installed as free end towards hot junction and apply primary stress; As preferred version, in installation process, be set to diaphragm seal 4 rotor and form a full circle week.
In the present embodiment, be set to: in adjacent diaphragm seal 4, the flat mouth side 43 of one of them diaphragm seal 4 is erected on the breach side less than 42 of another diaphragm seal 4, and this flat mouth side 43 is the version that face contacts with the edge of breach 41 on this breach side 42, what diaphragm seal 4 adjacent was above overlapped by breach side 42 concave portion sets up form, can in the stressed process of each diaphragm seal 4, particularly in the uneven loading process of rotor deformation, between adjacent diaphragm seal 4, overlap restricts mutually, avoid that single diaphragm seal 4 deflection is excessive causes plastic deformation, local leakage amount is large, the defects such as diaphragm seal 4 material fatiguability inefficacy, this flat mouth side 43 and the edge of breach 41 on this breach side 42 are in the version that contacts of face, this contact surface is preferably fitted completely with this flat mouth side 43 under diaphragm seal 4 free state, when diaphragm seal 4 is heated with free end pressurized, the thermal expansion of diaphragm seal 4 can fill up again the gap produced on breach 41 preferably, the diaphragm seal 4 of above version and bonding relation, make the hermetically-sealed construction for realizing air preheater bypass seal finally be similar to an annular sealing ring, and the change width of sealing ring take rotor deformation as reference quantity, and strong to above reference quantity adaptive faculty, the distortion breach 46 simultaneously each diaphragm seal 4 arranged is also for providing expansion clearance for the thermal stress deformation of diaphragm seal 4, be beneficial to the maintenance of the present invention's each diaphragm seal 4 shape in the process of Long-Time Service, preferred described distortion breach 46 is the V-notch 41 of opening to diaphragm seal 4 free end.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figures 1 to 5, for ease of the installation of the present invention in concrete utilization, the full circle ring that described substrate 1 is a full circle ring or is spliced by multistage arc, the end face of adjacent arc is face contact, and contact surface is positioned at the radial direction of full circle ring, described diaphragm seal 4 is fixed on the inner side of full circle ring, and the isometrical arc-shaped edges 44 of all diaphragm seals 4 is all positioned at circumferentially same.Above two kinds of forms as depicted in figs. 1 and 2.
For ease of the replacing of single diaphragm seal 4 and position, output length adjustment, also comprise fixture block 2 and many connecting bolts 3, described diaphragm seal 4 is all folded between bolted fixture block 2 and substrate 1.
As being a kind ofly convenient to draw materials, the comprehensive preferred version of the performance such as intensity, rigidity and wearability, described diaphragm seal 4 be thickness between 1 to 2.5mm, the trade mark is the steel plate of 15CrMn.The described trade mark: 15CrMn is derived from GB/T 3077-2006.
Embodiment 3:
The present embodiment is based on embodiment 1, as shown in Figures 1 to 5, for ease of forming multiple-sealed ring on the axial direction of air preheater rotor, be beneficial to the slip that passes into others' hands reducing air preheater, the more than row of diaphragm seal 4 on substrate 1, and diaphragm seal 4 free end be in row is contour, the free end end of different row's diaphragm seal 4 is positioned on differing heights.
For reduce diaphragm seal 4 with the rate of wear in rotor contact process, described diaphragm seal 4 is two rows, and row's diaphragm seal 4 is wherein fixed on another row's diaphragm seal 4, the row free end end for diaphragm seal 4 that free end is higher and the spacing of substrate 1 are greater than another and arrange the free end end of diaphragm seal 4 and the spacing of substrate 1, and diaphragm seal 4 thickness sentencing upside is thinner than the diaphragm seal 4 being in downside.In above structure; because diaphragm seal 4 thickness being in upside is less; free end is closer to rotor simultaneously; therefore sealing ring in periphery of rotor direction is when contacting with the diaphragm seal 4 being in upside; the power that the diaphragm seal 4 of upside is subject to forces the common part generation elastic deformation of two row's diaphragm seals 4; interaction force with the sealing ring in periphery of rotor direction last with diaphragm seal 4 free end reducing to be in downside, reaches the technique effect of thicker diaphragm seal 4 on the downside of protection.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (6)
1. air preheater bypass interlocking-type hermetically-sealed construction, comprise substrate (1) and be fixed on the sealing of substrate (1) side, it is characterized in that, described sealing comprises multiple diaphragm seal (4), described diaphragm seal (4) is arranged side by side, and diaphragm seal (4) tilts relative to substrate (1), four sides of diaphragm seal (4) are respectively breach side (42), flat mouth side (43), isometrical arc-shaped edges (44) and fixing side (45), described breach side (42) is positioned at the offside of flat mouth side (43), and breach side (42) is provided with breach (41), isometrical arc-shaped edges (44) is isometrical arcwall face, diaphragm seal (4) is fixed on substrate (1) near the side of fixing side (45),
In adjacent diaphragm seal (4), the flat mouth side (43) of one of them diaphragm seal (4) is erected on the breach side (42) of another diaphragm seal (4) below, and this flat mouth side (43) is that face contacts with the edge of the upper breach (41) of this breach side (42);
Described diaphragm seal (4) is also provided with the distortion breach (46) in strip, one end of described distortion breach (46) is crossing with isometrical arc-shaped edges (44), and the length direction of described distortion breach (46) is positioned at the spacing direction of isometrical arc-shaped edges (44) and fixing side (45).
2. air preheater bypass interlocking-type hermetically-sealed construction according to claim 1, it is characterized in that, the full circle ring that described substrate (1) is a full circle ring or is spliced by multistage arc, the end face of adjacent arc is face contact, and contact surface is positioned at the radial direction of full circle ring, described diaphragm seal (4) is fixed on the inner side of full circle ring, and the isometrical arc-shaped edges (44) of all diaphragm seals (4) is all positioned at circumferentially same.
3. air preheater bypass interlocking-type hermetically-sealed construction according to claim 1, is characterized in that, also comprise fixture block (2) and many connecting bolts (3), described diaphragm seal (4) is all folded between bolted fixture block (2) and substrate (1).
4. air preheater bypass interlocking-type hermetically-sealed construction according to claim 1, it is characterized in that, the more than row of diaphragm seal (4) on substrate (1), and diaphragm seal (4) free end be in row is contour, the free end end of different row's diaphragm seal (4) is positioned on differing heights.
5. air preheater bypass interlocking-type hermetically-sealed construction according to claim 4, it is characterized in that, described diaphragm seal (4) is two rows, and row's diaphragm seal (4) is wherein fixed on another row's diaphragm seal (4), the free end end of row's diaphragm seal (4) that free end is higher and the spacing of substrate (1) are greater than the spacing of another free end end of arranging diaphragm seal (4) and substrate (1), and diaphragm seal (4) thickness sentencing upside is thinner than the diaphragm seal (4) being in downside.
6. air preheater bypass interlocking-type hermetically-sealed construction according to claim 1, is characterized in that, described diaphragm seal (4) be thickness between 1 to 2.5mm, the trade mark is the steel plate of 15CrMn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228443.0A CN104864764B (en) | 2015-05-07 | 2015-05-07 | Bypass mutual-lock sealing structure for air pre-heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228443.0A CN104864764B (en) | 2015-05-07 | 2015-05-07 | Bypass mutual-lock sealing structure for air pre-heater |
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| Publication Number | Publication Date |
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| CN104864764A true CN104864764A (en) | 2015-08-26 |
| CN104864764B CN104864764B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510228443.0A Active CN104864764B (en) | 2015-05-07 | 2015-05-07 | Bypass mutual-lock sealing structure for air pre-heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877071A (en) * | 2022-05-12 | 2022-08-09 | 中国航发四川燃气涡轮研究院 | Fingertip sealing structure with finger touching piece and processing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288009A (en) * | 1994-03-31 | 1995-10-04 | Wes Technology Inc | Sealing in rotary regenerative heaters |
| JP2000193386A (en) * | 1998-12-25 | 2000-07-14 | Kansai Electric Power Co Inc:The | Rotating reproduction heat exchanger |
| CN2738193Y (en) * | 2004-09-04 | 2005-11-02 | 王卫东 | Spoke type sealing device for rotary air preheater |
| CN101071048A (en) * | 2006-05-12 | 2007-11-14 | 北京化工大学 | Rotary air preheater with brush type sealing device |
| CN201514151U (en) * | 2009-09-28 | 2010-06-23 | 哈尔滨润河科技有限公司 | Rotary air preheater sealing device |
| CN201652409U (en) * | 2010-04-28 | 2010-11-24 | 哈尔滨锅炉厂预热器有限责任公司 | High efficient and sealed rotary type air preheater and sealing member structure thereof |
| CN204594304U (en) * | 2015-05-07 | 2015-08-26 | 四川东能节能技术有限公司 | Air preheater bypass flap seal structure |
-
2015
- 2015-05-07 CN CN201510228443.0A patent/CN104864764B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288009A (en) * | 1994-03-31 | 1995-10-04 | Wes Technology Inc | Sealing in rotary regenerative heaters |
| JP2000193386A (en) * | 1998-12-25 | 2000-07-14 | Kansai Electric Power Co Inc:The | Rotating reproduction heat exchanger |
| CN2738193Y (en) * | 2004-09-04 | 2005-11-02 | 王卫东 | Spoke type sealing device for rotary air preheater |
| CN101071048A (en) * | 2006-05-12 | 2007-11-14 | 北京化工大学 | Rotary air preheater with brush type sealing device |
| CN201514151U (en) * | 2009-09-28 | 2010-06-23 | 哈尔滨润河科技有限公司 | Rotary air preheater sealing device |
| CN201652409U (en) * | 2010-04-28 | 2010-11-24 | 哈尔滨锅炉厂预热器有限责任公司 | High efficient and sealed rotary type air preheater and sealing member structure thereof |
| CN204594304U (en) * | 2015-05-07 | 2015-08-26 | 四川东能节能技术有限公司 | Air preheater bypass flap seal structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877071A (en) * | 2022-05-12 | 2022-08-09 | 中国航发四川燃气涡轮研究院 | Fingertip sealing structure with finger touching piece and processing method thereof |
| CN114877071B (en) * | 2022-05-12 | 2023-09-05 | 中国航发四川燃气涡轮研究院 | Fingertip sealing structure with contact finger and processing method thereof |
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| Publication number | Publication date |
|---|---|
| CN104864764B (en) | 2017-01-11 |
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