CN203036672U - Sealing mechanism of heat exchange partition bin in rotary air pre-heater - Google Patents
Sealing mechanism of heat exchange partition bin in rotary air pre-heater Download PDFInfo
- Publication number
- CN203036672U CN203036672U CN2012207444921U CN201220744492U CN203036672U CN 203036672 U CN203036672 U CN 203036672U CN 2012207444921 U CN2012207444921 U CN 2012207444921U CN 201220744492 U CN201220744492 U CN 201220744492U CN 203036672 U CN203036672 U CN 203036672U
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- China
- Prior art keywords
- plate
- sealing mechanism
- rotary air
- heat exchange
- shaped plate
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- 238000007789 sealing Methods 0.000 title claims abstract description 58
- 238000005192 partition Methods 0.000 title claims abstract 8
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 230000002441 reversible effect Effects 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 description 15
- 239000003351 stiffener Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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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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- Air Supply (AREA)
Abstract
本实用新型一种回转式空预器中换热隔仓的密封机构，该密封机构安装在回转式空预器的径向隔板上，该密封机构包括用于将整体密封机构固定在所述径向隔板上的固定架、能够封挡径向隔板与回转式空预器的扇形板或弧形板的间隙的活动封板和弹性支撑装置，所述活动封板可翻转的设置在固定架上，所述弹性支撑装置可收缩的顶靠活动封板，通过弹性支撑装置的弹性补偿使活动封板上沿与所述扇形板或弧形板接触密封。该密封机构通过活动封板将径向隔板与弧形板和扇形板之间的间隙封挡，通过弹性支撑装置顶推活动封板，给与活动封闭弹性补偿，能够更加紧密的与弧形板和扇形板接触密封，提高回转式空预器的性能。
The utility model relates to a sealing mechanism for a heat exchange compartment in a rotary air preheater. The sealing mechanism is installed on the radial partition of the rotary air preheater. The sealing mechanism includes a sealing mechanism for fixing the overall sealing mechanism on the The fixed frame on the radial partition, the movable sealing plate and the elastic support device that can block the gap between the radial partition and the fan-shaped plate or arc-shaped plate of the rotary air preheater, the movable sealing plate can be turned over On the fixed frame, the elastic supporting device can shrink against the movable sealing plate, and through the elastic compensation of the elastic supporting device, the upper edge of the movable sealing plate is contacted and sealed with the fan-shaped plate or the arc-shaped plate. The sealing mechanism seals the gap between the radial partition and the arc-shaped plate and the fan-shaped plate through the movable sealing plate, pushes the movable sealing plate through the elastic support device, and gives elastic compensation for the movable sealing, which can be more closely connected with the arc The plate and fan-shaped plate are contacted and sealed to improve the performance of the rotary air preheater.
Description
Technical field
The utility model relates to a kind of mechanical sealing mechanism, in particular for the sealing mechanism of heat exchange compartment in the rotary regenerative air heater.
Background technology
Rotary regenerative air heater is also recalled rotatable air preheater, is a kind of for large-sized boiler, utilizes the heat of boiler smoke to come the heating flame required air, to improve the heat-exchange apparatus of boiler efficiency.Rotary regenerative air heater mainly comprises the shell that rotor and relative rotor fixedly install, fanning strip and arc are installed on the shell, rotor is provided with a plurality of radially dividing plates and hoop dividing plate, rotor is separated into several heat exchange compartments, place heat exchange element in the heat exchange compartment, radial and axial diaphragm seal radially is installed on the dividing plate, and diaphragm seal and fanning strip and arc form the sealing system between flue gas and the air with the sealing of heat exchange compartment.Air preheater rotor forms heat exchange between air and the flue gas when rotated, and air is carried out preheating.
Under hot running status, rotor can be subjected to thermal deformation to become mushroom, and the gap between rotor and fanning strip and the arc can change thereupon.Since air preheater when operation air side be malleation, fume side is negative pressure, air can leak to fume side by the gap between diaphragm seal and fanning strip and the arc, this will influence boiler efficiency greatly and give, the exerting oneself of air-introduced machine.Yet the air leak rate of air curtain of air preheater is one of important indicator that influences boiler operating efficiency, so that the sealing property of heat exchange compartment seems is particularly important.
The utility model content
In order to solve problems of the prior art, the sealing mechanism of heat exchange compartment in a kind of rotary regenerative air heater of the utility model, sealing mechanism is by the radially gap block between dividing plate and arc and the fanning strip of movable shrouding, by the movable shrouding of resilient supporting unit pushing tow, give and movable shrouding elastic compensating, can be more closely carry out gap-free sealedly with arc and fanning strip, improve the performance of rotary regenerative air heater.
To achieve these goals, a kind of sealing mechanism for rotary regenerative air heater of the utility model, sealing mechanism is installed on the radially dividing plate of rotary regenerative air heater, sealing mechanism comprises for the fixed mount that integral sealing mechanism is fixed on the described radially dividing plate, can block radially movable shrouding and the resilient supporting unit in the gap of the fanning strip of dividing plate and rotary regenerative air heater or arc, described movable shrouding is turnover to be arranged on the fixed mount, described resilient supporting unit is contractile to lean movable shrouding, and the elastic compensating by resilient supporting unit makes movable shrouding upper edge contact sealing with described fanning strip or arc.
Further, described resilient supporting unit is planar linkage mechanism, comprise first Connection Block, second Connection Block, the axis of guide and spring, described first Connection Block is fixed on the described movable shrouding, first Connection Block is connected by bearing pin with the end of the described axis of guide, the axis of guide can rotate around bearing pin, described second Connection Block is fixed on the described fixed mount, second Connection Block is provided with turnover axle sleeve, the axis of guide passes described axle sleeve and can move along the axial direction of axle sleeve, be provided with the flange of circumferential protrusion on the axis of guide near the first Connection Block place, described spring housing is contained on the axis of guide, and holding is between described flange and described axle sleeve, and movable shrouding passes through the elastic compensating of spring with the block of described gap.
Further, the described axis of guide stretches out described axle sleeve place and is provided with and prevents that the axis of guide breaks away from the spacer pin of axle sleeve.
Further, the edge of described movable shrouding is welded with stiffener, and described stiffener is provided with the wear-resistant seal bar for the sealing that contacts with described fanning strip or arc, and described wear-resistant seal bar is made by high-abrasive material.
The mode of the utility model by the movable shrouding of mechanical resilient supporting unit pushing tow compensates when heat exchange, gap between radial seal and fanning strip and the arc, realize the sealing of heat exchange compartment, the resilient supporting unit reliable in action, stuck phenomenon can not appear, through the good sealing effect of practical activity shrouding, long service life gets a promotion the performance of rotary regenerative air heater.
Description of drawings
Fig. 1 is the schematic diagram of rotary regenerative air heater rotor;
Fig. 2 is the cutaway view of A-A among Fig. 1;
Fig. 3 is the schematic diagram of the sealing device of heat exchange compartment in the utility model rotary regenerative air heater;
Fig. 4 is the cutaway view of B-B among Fig. 3;
Fig. 5 is sealing mechanism sealing state schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
As depicted in figs. 1 and 2, the structure of rotary regenerative air heater rotor comprises around central shaft 7 rotor rotated and cylinder-like shell 1, rotor by fixedly connected with central shaft 7 several radially dividing plate 4 and several hoop dividing plates 3 are formed, rotor is separated into several heat exchange compartments 100, be placed with the heat exchange element of being made by metal corrugated plate in the heat exchange compartment 100, heat exchange element is not shown in the drawings.Shell 1 inboard is provided with arc 5, on the arc 5, following symmetry fanning strip 2 is installed, arc 5 and fanning strip 2 complete settings, operated by rotary motion 2-3 cover, 2 cover arcs 5 and fanning strip 2 are set in the present embodiment, see Fig. 1, on dividing plate 4 radially, lower limb, and be positioned on the lee face when rotating of dividing plate 4 radially, be equipped with for will be radially the sealing mechanism 6 of gap block between dividing plate 4 and the fanning strip 2,, and be positioned at radially on the lee face of dividing plate 4 when rotating away from the outer rim that connects central shaft 7 at dividing plate 4 radially, be equipped with for the sealing mechanism 6 of the gap block between dividing plate 4 and the arc 5 radially.
As shown in Figure 3 and Figure 4, the sealing device of heat exchange compartment comprises fixed mount 8, movable shrouding 9 and resilient supporting unit in the utility model rotary regenerative air heater.Offer fixing hole 10 on the fixed mount 8, integral sealing mechanism 6 is by fixed mount 10 fixed installations, movable shrouding 9 is connected by hinge is turnover with fixed mount 8, the edge of movable shrouding 9 is welded with stiffener 19, stiffener 19 be provided with for fanning strip 2 or arc 5 contacted wear-resistant seal bars 11, wear-resistant seal bar 11 is made by high-abrasive material.Resilient supporting unit is planar linkage mechanism, comprise first Connection Block 12, second Connection Block 13, the axis of guide 15 and spring 17, first Connection Block 12 is fixed on the movable shrouding 9, first Connection Block 12 is connected by bearing pin with the upper end of the axis of guide 15 in Fig. 4, the axis of guide 15 can rotate around bearing pin, second Connection Block 13 is fixed on the fixed mount 8, second Connection Block 13 is provided with turnover axle sleeve 14, the axis of guide 15 passes axle sleeve 14 and can move along the axial direction of axle sleeve 14, be provided with the flange 16 of circumferential protrusion on the axis of guide 15 near first Connection Block, 12 places, spring 17 is sleeved on the axis of guide 15, and holding is between flange 16 and axle sleeve 14, and movable shrouding 9 passes through the elastic compensating of spring 17 with the radially gap block between dividing plate 4 and fanning strip 2 and the arc 5.The axis of guide 15 stretches out axle sleeve 14 places and is provided with the spacer pin 18 that prevents axis of guide disengaging axle sleeve.
As shown in Figure 5, for the sealing device of heat exchange separation in the utility model rotary regenerative air heater is in sealing state, concrete is seals the radially gap between the dividing plate 4 and arc 5, the sealing device is fixed on radially on the dividing plate 4, after movable shrouding 9 touched arc 5, to fixed mount 8 upsets, compression spring 17 held power, wear-resistant seal bar 11 in the movable sealing 9 is closely leaned on arc 5 inwalls, realize sealing.Rotate with rotor, after the sealing device broke away from arc 5, spring 17 drive activity shroudings 9 resetted.
Seal that radially gap and the Fig. 5 between the dividing plate 4 and fanning strip 2 is basic identical, do not give unnecessary details at this.
Above-mentioned example just is used for explanation the utility model, and embodiment of the present utility model is not limited to these examples, and the various specific embodiment that meet the utility model thought that those skilled in the art make are all within protection domain of the present utility model.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207444921U CN203036672U (en) | 2012-12-31 | 2012-12-31 | Sealing mechanism of heat exchange partition bin in rotary air pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207444921U CN203036672U (en) | 2012-12-31 | 2012-12-31 | Sealing mechanism of heat exchange partition bin in rotary air pre-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036672U true CN203036672U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207444921U Expired - Fee Related CN203036672U (en) | 2012-12-31 | 2012-12-31 | Sealing mechanism of heat exchange partition bin in rotary air pre-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613493A (en) * | 2015-01-26 | 2015-05-13 | 张洪福 | Rotating type air pre-heater sector plate |
| CN109079283A (en) * | 2018-10-31 | 2018-12-25 | 中国电建集团山东电力建设第工程有限公司 | A kind of welded and installed technique of the rotor partition of rotary regenerative air heater |
-
2012
- 2012-12-31 CN CN2012207444921U patent/CN203036672U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613493A (en) * | 2015-01-26 | 2015-05-13 | 张洪福 | Rotating type air pre-heater sector plate |
| CN104613493B (en) * | 2015-01-26 | 2017-03-15 | 张洪福 | A kind of rotary regenerative air preheater fanning strip |
| CN109079283A (en) * | 2018-10-31 | 2018-12-25 | 中国电建集团山东电力建设第工程有限公司 | A kind of welded and installed technique of the rotor partition of rotary regenerative air heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |