CN102944025A - Flexible contact type sealing device - Google Patents

Flexible contact type sealing device Download PDF

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Publication number
CN102944025A
CN102944025A CN2012104682015A CN201210468201A CN102944025A CN 102944025 A CN102944025 A CN 102944025A CN 2012104682015 A CN2012104682015 A CN 2012104682015A CN 201210468201 A CN201210468201 A CN 201210468201A CN 102944025 A CN102944025 A CN 102944025A
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CN
China
Prior art keywords
plate
sealing strip
returning face
blind hole
face plate
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Pending
Application number
CN2012104682015A
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Chinese (zh)
Inventor
孟金来
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to CN2012104682015A priority Critical patent/CN102944025A/en
Publication of CN102944025A publication Critical patent/CN102944025A/en
Priority to CN2013101092044A priority patent/CN103175437A/en
Priority to CN2013201550353U priority patent/CN203177725U/en
Priority to CN201320540340.4U priority patent/CN203477307U/en
Priority to CN201320540342.3U priority patent/CN203454194U/en
Priority to CN201320540339.1U priority patent/CN203560922U/en
Priority to CN201310391331.8A priority patent/CN103423762B/en
Pending legal-status Critical Current

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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

Abstract

The invention discloses a flexible contact type sealing device, comprising a wear-resistant protecting plate, wherein the top end of the wear-resistant protecting plate is connected with the left side edge of an overturning plate by a rotating device; a stopping block is fixed on the upper surface of the overturning plate and penetrates through the overturning plate along the left-right direction; the left side surface of the stopping block is a downward-pressing inclined plane; the lower end of the downward-pressing inclined plane extends towards the rotating device; the top end of the stopping block is provided with a groove penetrating through the stopping block along the left-right direction; a sealing strip is fixed in the groove by adopting laser welding or gas shielded welding, and is made of high-temperature and self-lubricating nickel-based alloy; the top end of the sealing strip is higher than the plate surface of the overturning plate by 2-5mm, and the upper part of the sealing strip is an arc shape with a convex middle part; and the lower surface of the overturning plate is attached with the top ends of a plurality of pressing springs. The invention aims at providing the flexible contact type sealing device which is good in sealing effect, reliable in sealing performance and long in service life.

Description

The flexible contact type sealing device
Technical field
The present invention relates to a kind of flexible contact type sealing device.
Background technology
The utility model name is called " a kind of flexible contact type sealing device; " the patent No. is the Chinese patent of 201020139213.X, a kind of sealing device that can be used for air preheater is disclosed, this flexible contact type sealing device comprises seal, folding, the parts such as spring and base plate, but the flexible contact type sealing device that is used for air pre-heater sealing belongs to a kind of novel seal design, because the working environment of flexible contact type sealing device is extremely abominable, in the process of using, find, this flexible contact type sealing device can (some months even shorter) lose rapidly sealing and damage in the very short time, can't work, be embodied in following several problem:
1, to the top lift that how to design spring without any data that can reference, because the top lift numerical value of employed spring is unreasonable, cause or be that top lift causes more greatly wear rib to wear and tear very soon, or be that the less sealing effectiveness that causes of top lift is bad.
2, the wear rib on seal top, in the environment of high temperature gas flow (more than 350 ℃), many lime-ash, wear and tear and be exceedingly fast, can be polished rapidly, and the workman is difficult to find that wear rib is polished from the outside, the backplate direct friction that causes thus seal and air preheater, cause frictional force to increase, not only sealing effectiveness forfeiture, and can cause damage to backplate.
3, in the environment of high temperature gas flow (more than 350 ℃), many lime-ash, the shaft branch of folding enters a lot of lime-ash, causes rotating shaft to be rotated dumb, and wearing and tearing are very fast, and then cause the sealing effectiveness variation, even owing to the moving page or leaf that can not in time lift folding loses sealing effectiveness.
4, because wear rib environment of living in has larger difference variation, add the jerk effect, if do not take reliable measure, firm not to fixing of wear rib, will cause wear rib to come off, cause the sealing effectiveness forfeiture, and the backplate of air preheater is caused damage.
Summary of the invention
Be to provide a kind of good sealing effect, sealing property is reliable order of the present invention, the flexible contact type sealing device of long service life.
Flexible contact type sealing device of the present invention, comprise the wear plate that the plate face arranges along left and right directions, the plate face of wear plate is positioned at vertical direction, the top of wear plate links to each other with the limit, left side of returning face plate by tumbler, the plate face of returning face plate is positioned near the horizontal plane, the upper surface of returning face plate is fixed with block, block runs through returning face plate along left and right directions, the left surface of block is for pressing down the inclined-plane, the low side that presses down the inclined-plane stretches to tumbler, the top of block is provided with the groove that runs through block along left and right directions, the width of groove is 4-7mm, the degree of depth of groove is 2-6mm, adopt laser weld or gas shielded welding to be fixed with sealing strip in the groove, sealing strip adopts high temoperature self lubricating nickel base alloy to make, sealing strip runs through whole groove along left and right directions, the top of sealing strip exceeds the plate face 2-5mm of returning face plate, the top of sealing strip is middle arc to upper process, the lower surface of described returning face plate and the top of a plurality of stage clips are affixed, the bottom of each stage clip and the upper surface of supporting plate are affixed, the plate face of supporting plate is positioned at horizontal direction, and a side and the described wear plate of supporting plate are fixedly linked;
The hardness of described sealing strip (HBS) is 105-126, and the compression strength of sealing strip is not less than 330Mpa, and the bending strength of sealing strip is not less than 250Mpa, and the top lift that a plurality of described stage clips are applied on the sealing strip of every meter unit length is 180-220 newton;
Described tumbler comprises left blind hole sleeve from left to right successively, more than one intermediate sleeve and right blind hole sleeve, left blind hole sleeve adopts matched in clearance to be sleeved on the left end of pivot, more than one intermediate sleeve adopts matched in clearance to be sleeved on the middle part of pivot, described right blind hole sleeve adopts matched in clearance to be sleeved on the right-hand member of pivot, the right-hand member of left blind hole sleeve matches with the left end of an intermediate sleeve, the two ends of adjacent intermediate sleeve mate with each other, the left end of described right blind hole sleeve matches with the right-hand member of an intermediate sleeve, described left blind hole sleeve, each intermediate sleeve and right blind hole sleeve all adopt carbide alloy to make, the top of left blind hole sleeve and described right blind hole sleeve and described wear plate is adopted and is weldingly connected, and a long limit of at least one described intermediate sleeve and returning face plate is adopted and is weldingly connected; Or the long limit of described left blind hole sleeve and described right blind hole sleeve and returning face plate one adopts and is weldingly connected, and the top employing of at least one described intermediate sleeve and described wear plate is weldingly connected;
Described wear plate or supporting plate are provided with the stopping means that acts on described returning face plate or described pivot, and stopping means can be 4-10mm with the height change circumscription of the sealing strip oscilaltion on the described returning face plate.
Flexible contact type sealing device of the present invention, angle β between the wherein said plate face that presses down inclined-plane and described returning face plate is 40 °-50 °, the width of described groove is 4.5-6mm, the degree of depth of groove is 3-5mm, the top of described sealing strip exceeds the plate face 2.5-4mm of returning face plate, described wear plate, the length of described returning face plate and sealing strip is all 400-600mm, the quantity of described intermediate sleeve is 2-8, the quantity of described stage clip is 2-6, the compression strength of described sealing strip is 350-360Mpa, the bending strength of sealing strip is 270-280Mpa, the top lift that a plurality of stage clips are applied on the sealing strip of every meter unit length is 190-210 newton, and the height change scope of the sealing strip oscilaltion on the described returning face plate is 5-8mm.
Flexible contact type sealing device of the present invention, angle β between the wherein said plate face that presses down inclined-plane and described returning face plate is 43 °, the width of described groove is 5mm, the degree of depth of groove is 3.5mm, the top of described sealing strip exceeds the plate face 3mm of returning face plate, the length of described wear plate, described returning face plate and sealing strip is all 500mm, the quantity of described intermediate sleeve is 3, the compression strength of described sealing strip is 355Mpa, the bending strength of sealing strip is 275Mpa, and the top lift that a plurality of described stage clips are applied on the sealing strip of every meter unit length is 200 newton.
Flexible contact type sealing device of the present invention, wherein said stage clip adopt inconel x-750 high temperature alloy to make, and the dry friction coefficient μ of described sealing strip is less than 0.12.
Compare with existing flexible contact type sealing device, flexible contact type sealing device of the present invention has following having a few:
1, the top lift that a plurality of stage clip of the present invention is applied on the sealing strip of every meter unit length is controlled in 190-210 newton's the scope, the height change scope of the sealing strip oscilaltion on the returning face plate is controlled as 5-8mm, adopted simultaneously hardness (HBS) to be 105-126, compression strength is not less than 330Mpa, bending strength is not less than the high temoperature self lubricating nickel base alloy of 250Mpa, above-mentioned composite design is so that greatly prolong the service life of sealing strip, by being increased to more than 5 years present not enough half a year, and the sealing effectiveness of sealing strip is very outstanding, and reliability is very high.
2, because that adhesive force designs between the backplate of the sealing strip of flexible contact type sealing device of the present invention and air preheater is very reasonable, so that the sealing property of sealing strip is very good, thereby reduced greatly the lime-ash that high temperature gas flow brings, the minimizing of lime-ash so that between the backplate of sealing strip and air preheater frictional force can remain very little, therefore can not cause damage to backplate.
3, tumbler of the present invention comprises left blind hole sleeve, more than one intermediate sleeve and right blind hole sleeve from left to right successively, left blind hole sleeve adopts matched in clearance to be sleeved on the left end of pivot, more than one intermediate sleeve adopts matched in clearance to be sleeved on the middle part of pivot, right blind hole sleeve adopts matched in clearance to be sleeved on the right-hand member of pivot, the right-hand member of left blind hole sleeve matches with the left end of an intermediate sleeve, the two ends of adjacent intermediate sleeve mate with each other, and the left end of right blind hole sleeve matches with the right-hand member of an intermediate sleeve.Above-mentioned design is not so that how many lime-ash tumbler of the present invention has yet in the environment of high temperature gas flow, many lime-ash enter in the pivot fit clearance, thereby it is dumb to avoid pivot to rotate, adding left blind hole sleeve, each intermediate sleeve and right blind hole sleeve all adopts carbide alloy to make, can prevent that related components is by than quick-wearing, and then cause the sealing effectiveness variation, even owing to the moving page or leaf that can not in time lift folding loses sealing effectiveness.
4, in order to adapt to larger difference variation, the operating mode of jerk; the top of block of the present invention is provided with the groove that runs through block along left and right directions; the width of groove is 4-7mm; the degree of depth of groove is 2-6mm; adopt laser weld or gas shielded welding to be fixed with sealing strip in the groove; since taked the above-mentioned reliable measure of taking, very firm to fixing of sealing strip, therefore the sealing strip that can not occur existing in the prior art comes off, causes the problem of sealing effectiveness forfeiture.
In sum, flexible contact type sealing device of the present invention has good sealing effect, and sealing property is reliable, and the characteristics of long service life have outstanding substantive distinguishing features and significant progressive.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Description of drawings
Fig. 1 is the front view of the structural representation of flexible contact type sealing device of the present invention;
Fig. 2 is the side view of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, flexible contact type sealing device of the present invention, comprise that the plate face is along the wear plate 1 of the rectangle of left and right directions setting, the plate face of wear plate 1 is positioned at vertical direction, the top of wear plate 1 links to each other by the limit, left side of tumbler with the returning face plate 4 of rectangle, the plate face of returning face plate 4 is positioned near the horizontal plane, the upper surface of returning face plate 4 is fixed with block 5, block 5 runs through returning face plate 4 along left and right directions, the left surface of block 5 is for pressing down inclined-plane 6, the low side that presses down inclined-plane 6 stretches to tumbler, the angle β that presses down between the plate face of inclined-plane 6 and returning face plate 4 is 30 °-60 °, the top of block 5 is provided with the groove 7 that runs through block 5 along left and right directions, the width of groove 7 is 4-7mm, the degree of depth of groove 7 is 2-6mm, groove 7 interior employing laser weld or gas shielded welding are fixed with sealing strip 8, sealing strip 8 adopts high temoperature self lubricating nickel base alloy to make, sealing strip 8 runs through whole groove 7 along left and right directions, the top of sealing strip 8 exceeds the plate face 2-5mm of returning face plate 4, the top of sealing strip 8 is middle arc to upper process, the top of the lower surface of returning face plate 4 and a plurality of stage clip 9 is affixed, the upper surface of the bottom of each stage clip 9 and supporting plate 10 is affixed, the plate face of supporting plate 10 is positioned at horizontal direction, and side and the wear plate 1 of supporting plate 10 are fixedly linked;
The hardness HBS of sealing strip 8 is 105-126, and the compression strength of sealing strip 8 is not less than 330Mpa, and the bending strength of sealing strip 8 is not less than 250Mpa, and the top lift that a plurality of stage clips 9 are applied on the sealing strip 8 of every meter unit length is 180-220 newton;
Tumbler comprises left blind hole sleeve 11 from left to right successively, 3 intermediate sleeves 12 and right blind hole sleeve 13, the quantity of intermediate sleeve 12 also can be 1 or 2 or 4 or 5 or more, left blind hole sleeve 11 adopts matched in clearance to be sleeved on the left end of pivot 14,3 intermediate sleeves 12 adopt matched in clearance to be sleeved on the middle part of pivot 14, right blind hole sleeve 13 adopts matched in clearance to be sleeved on the right-hand member of pivot 14, the right-hand member end face of left blind hole sleeve 11 matches with the left end end face of an intermediate sleeve 12 and (is affixed, prevent that lime-ash from entering in left blind hole sleeve 11 and the intermediate sleeve 12, prevent that also air-flow from leaking thus), the two ends of adjacent intermediate sleeve 12 mate with each other and (are affixed, prevent that lime-ash from entering in the intermediate sleeve 12, prevent that also air-flow from leaking thus), the left end of right blind hole sleeve 13 matches with the right-hand member of an intermediate sleeve 12 and (is affixed, prevent that lime-ash from entering in right blind hole sleeve 13 and the intermediate sleeve 12, prevent that also air-flow from leaking thus), left blind hole sleeve 11, each intermediate sleeve 12 and right blind hole sleeve 13 all adopt carbide alloy to make, left blind hole sleeve 11 and right blind hole sleeve 13 adopt with the top of wear plate 1 and are weldingly connected, and at least one intermediate sleeve 12 adopts with a long limit of returning face plate 4 and is weldingly connected; Or left blind hole sleeve 11 and right blind hole sleeve 13 adopt with a long limit of returning face plate 4 and be weldingly connected, and at least one intermediate sleeve 12 adopts with the top of wear plate 1 and is weldingly connected;
Wear plate 1 or supporting plate 10 are provided with the stopping means that acts on returning face plate 4 or pivot 14, and stopping means can be 4-10mm with the height change circumscription of sealing strip 8 oscilaltions on the returning face plate 4.
As improvement of the present invention, angle β between the above-mentioned plate face that presses down inclined-plane 6 and returning face plate 4 is 40 °-50 °, the width of groove 7 is 4.5-6mm, the degree of depth of groove 7 is 3-5mm, the top of sealing strip 8 exceeds the plate face 2.5-4mm of returning face plate 4, wear plate 1, the length of returning face plate 4 and sealing strip 8 is all 400-600mm, the quantity of intermediate sleeve 12 is 2-8, the quantity of stage clip 9 is 2-6, the compression strength of sealing strip 8 is 350-360Mpa, the bending strength of sealing strip 8 is 270-280Mpa, the top lift that a plurality of stage clips 9 are applied on the sealing strip 8 of every meter unit length is 190-210 newton, and the height change scope of sealing strip 8 oscilaltions on the returning face plate 4 is 5-8mm.
As a further improvement on the present invention, angle β between the above-mentioned plate face that presses down inclined-plane 6 and returning face plate 4 is 43 °, the width of groove 7 is 5mm, the degree of depth of groove 7 is 3.5mm, the top of sealing strip 8 exceeds the plate face 3mm of returning face plate 4, the length of wear plate 1, returning face plate 4 and sealing strip 8 is all 500mm, the quantity of intermediate sleeve 12 is 3, the compression strength of sealing strip 8 is 355Mpa, the bending strength of sealing strip 8 is 275Mpa, and the top lift that a plurality of stage clips 9 are applied on the sealing strip 8 of every meter unit length is 200 newton.
As a further improvement on the present invention, above-mentioned stage clip 9 adopts inconel x-750 high temperature alloy to make, and the dry friction coefficient μ of sealing strip 8 is less than 0.12.
Embodiment recited above is described preferred embodiment of the present invention; be not that the spirit and scope of the present invention are limited; do not breaking away under the design prerequisite of the present invention; common engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.

Claims (4)

1. flexible contact type sealing device, it is characterized in that: comprise the wear plate (1) that the plate face arranges along left and right directions, the plate face of wear plate (1) is positioned at vertical direction, the top of wear plate (1) links to each other by the limit, left side of tumbler with returning face plate (4), the plate face of returning face plate (4) is positioned near the horizontal plane, the upper surface of returning face plate (4) is fixed with block (5), block (5) runs through returning face plate (4) along left and right directions, the left surface of block (5) is for pressing down inclined-plane (6), the low side that presses down inclined-plane (6) stretches to tumbler, the top of block (5) is provided with the groove (7) that runs through block (5) along left and right directions, the width of groove (7) is 4-7mm, the degree of depth of groove (7) is 2-6mm, adopt laser weld or gas shielded welding to be fixed with sealing strip (8) in the groove (7), sealing strip (8) adopts high temoperature self lubricating nickel base alloy to make, sealing strip (8) runs through whole groove (7) along left and right directions, the top of sealing strip (8) exceeds the plate face 2-5mm of returning face plate (4), the top of sealing strip (8) is middle arc to upper process, the top of the lower surface of described returning face plate (4) and a plurality of stage clip (9) is affixed, the upper surface of the bottom of each stage clip (9) and supporting plate (10) is affixed, the plate face of supporting plate (10) is positioned at horizontal direction, and a side and the described wear plate (1) of supporting plate (10) are fixedly linked;
The hardness (HBS) of described sealing strip (8) is 105-126, the compression strength of sealing strip (8) is not less than 330Mpa, the bending strength of sealing strip (8) is not less than 250Mpa, and the top lift that a plurality of described stage clips (9) are applied on the sealing strip (8) of every meter unit length is 180-220 newton;
Described tumbler comprises left blind hole sleeve (11) from left to right successively, more than one intermediate sleeve (12) and right blind hole sleeve (13), left blind hole sleeve (11) adopts matched in clearance to be sleeved on the left end of pivot (14), more than one intermediate sleeve (12) adopts matched in clearance to be sleeved on the middle part of pivot (14), described right blind hole sleeve (13) adopts matched in clearance to be sleeved on the right-hand member of pivot (14), the right-hand member of left blind hole sleeve (11) matches with the left end of an intermediate sleeve (12), the two ends of adjacent intermediate sleeve (12) mate with each other, the left end of described right blind hole sleeve (13) matches with the right-hand member of an intermediate sleeve (12), described left blind hole sleeve (11), each intermediate sleeve (12) and right blind hole sleeve (13) all adopt carbide alloy to make, left blind hole sleeve (11) and described right blind hole sleeve (13) adopt with the top of described wear plate (1) and are weldingly connected, and at least one described intermediate sleeve (12) adopts with a long limit of returning face plate (4) and is weldingly connected; Or described left blind hole sleeve (11) and described right blind hole sleeve (13) adopt with a long limit of returning face plate (4) and be weldingly connected, and at least one described intermediate sleeve (12) adopts with the top of described wear plate (1) and is weldingly connected;
Described wear plate (1) or supporting plate (10) are provided with the stopping means that acts on described returning face plate (4) or described pivot (14), and stopping means can be 4-10mm with the height change circumscription of sealing strip (8) oscilaltion on the described returning face plate (4).
2. flexible contact type sealing device according to claim 1, it is characterized in that: the angle β between the described plate face that presses down inclined-plane (6) and described returning face plate (4) is 40 °-50 °, the width of described groove (7) is 4.5-6mm, the degree of depth of groove (7) is 3-5mm, the top of described sealing strip (8) exceeds the plate face 2.5-4mm of returning face plate (4), described wear plate (1), the length of described returning face plate (4) and sealing strip (8) is all 400-600mm, the quantity of described intermediate sleeve (12) is 2-8, the quantity of described stage clip (9) is 2-6, the compression strength of described sealing strip (8) is 350-360Mpa, the bending strength of sealing strip (8) is 270-280Mpa, the top lift that a plurality of stage clips (9) are applied on the sealing strip (8) of every meter unit length is 190-210 newton, and the height change scope of sealing strip (8) oscilaltion on the described returning face plate (4) is 5-8mm.
3. flexible contact type sealing device according to claim 2, it is characterized in that: the angle β between the described plate face that presses down inclined-plane (6) and described returning face plate (4) is 43 °, the width of described groove (7) is 5mm, the degree of depth of groove (7) is 3.5mm, the top of described sealing strip (8) exceeds the plate face 3mm of returning face plate (4), described wear plate (1), the length of described returning face plate (4) and sealing strip (8) is all 500mm, the quantity of described intermediate sleeve (12) is 3, the compression strength of described sealing strip (8) is 355Mpa, the bending strength of sealing strip (8) is 275Mpa, and the top lift that a plurality of described stage clips (9) are applied on the sealing strip (8) of every meter unit length is 200 newton.
4. flexible contact type sealing device according to claim 3 is characterized in that: described stage clip (9) adopts inconel x-750 high temperature alloy to make, and the dry friction coefficient μ of described sealing strip (8) is less than 0.12.
CN2012104682015A 2012-11-20 2012-11-20 Flexible contact type sealing device Pending CN102944025A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN2012104682015A CN102944025A (en) 2012-11-20 2012-11-20 Flexible contact type sealing device
CN2013101092044A CN103175437A (en) 2012-11-20 2013-04-01 Flexible contact-type sealing device
CN2013201550353U CN203177725U (en) 2012-11-20 2013-04-01 Flexible contact sealing device
CN201320540340.4U CN203477307U (en) 2012-11-20 2013-09-02 Flexible contact sealing device using sealing hinge component
CN201320540342.3U CN203454194U (en) 2012-11-20 2013-09-02 Flexible contact sealing device with wind and dust screening tile
CN201320540339.1U CN203560922U (en) 2012-11-20 2013-09-02 Flexible contact sealing device for cold end of air preheater
CN201310391331.8A CN103423762B (en) 2012-11-20 2013-09-02 Air preheater cold-end air flexible contact type sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104682015A CN102944025A (en) 2012-11-20 2012-11-20 Flexible contact type sealing device

Publications (1)

Publication Number Publication Date
CN102944025A true CN102944025A (en) 2013-02-27

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Application Number Title Priority Date Filing Date
CN2012104682015A Pending CN102944025A (en) 2012-11-20 2012-11-20 Flexible contact type sealing device
CN2013101092044A Pending CN103175437A (en) 2012-11-20 2013-04-01 Flexible contact-type sealing device
CN2013201550353U Expired - Fee Related CN203177725U (en) 2012-11-20 2013-04-01 Flexible contact sealing device
CN201320540340.4U Expired - Fee Related CN203477307U (en) 2012-11-20 2013-09-02 Flexible contact sealing device using sealing hinge component
CN201320540342.3U Expired - Fee Related CN203454194U (en) 2012-11-20 2013-09-02 Flexible contact sealing device with wind and dust screening tile
CN201320540339.1U Expired - Lifetime CN203560922U (en) 2012-11-20 2013-09-02 Flexible contact sealing device for cold end of air preheater
CN201310391331.8A Active CN103423762B (en) 2012-11-20 2013-09-02 Air preheater cold-end air flexible contact type sealing device

Family Applications After (6)

Application Number Title Priority Date Filing Date
CN2013101092044A Pending CN103175437A (en) 2012-11-20 2013-04-01 Flexible contact-type sealing device
CN2013201550353U Expired - Fee Related CN203177725U (en) 2012-11-20 2013-04-01 Flexible contact sealing device
CN201320540340.4U Expired - Fee Related CN203477307U (en) 2012-11-20 2013-09-02 Flexible contact sealing device using sealing hinge component
CN201320540342.3U Expired - Fee Related CN203454194U (en) 2012-11-20 2013-09-02 Flexible contact sealing device with wind and dust screening tile
CN201320540339.1U Expired - Lifetime CN203560922U (en) 2012-11-20 2013-09-02 Flexible contact sealing device for cold end of air preheater
CN201310391331.8A Active CN103423762B (en) 2012-11-20 2013-09-02 Air preheater cold-end air flexible contact type sealing device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103175437A (en) * 2012-11-20 2013-06-26 孟金来 Flexible contact-type sealing device

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CN103423762A (en) 2013-12-04
CN203560922U (en) 2014-04-23
CN203477307U (en) 2014-03-12
CN203177725U (en) 2013-09-04
CN203454194U (en) 2014-02-26
CN103423762B (en) 2015-08-26
CN103175437A (en) 2013-06-26

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Application publication date: 20130227