CN211452029U - Heat exchange plate supporting structure of non-metal plate type air preheater - Google Patents
Heat exchange plate supporting structure of non-metal plate type air preheater Download PDFInfo
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- CN211452029U CN211452029U CN201922263546.7U CN201922263546U CN211452029U CN 211452029 U CN211452029 U CN 211452029U CN 201922263546 U CN201922263546 U CN 201922263546U CN 211452029 U CN211452029 U CN 211452029U
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- Prior art keywords
- metal
- heat transfer
- nonmetal
- heat exchange
- support bar
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- 229910052755 nonmetal Inorganic materials 0.000 title claims abstract description 72
- 239000002184 metal Substances 0.000 claims abstract description 52
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 230000002146 bilateral effect Effects 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a non-metal plate formula air heater's heat transfer board bearing structure, including a plurality of non-metal heat transfer units, every non-metal heat transfer unit includes the metal support bar that the symmetry set up from top to bottom and the non-metal plate that the bilateral symmetry set up, and metal support bar and non-metal plate connect and form annular channel, the tip of non-metal plate is glued through the high temperature and is fixed with the metal support bar, is equipped with the PTFE support rod between two adjacent non-metal heat transfer units. The utility model discloses can effectively avoid improving holistic stability because of the cracked problem of nonmetal heat transfer board that metal support bar and nonmetal heat transfer board coefficient of thermal expansion difference lead to.
Description
Technical Field
The utility model relates to an oil refining technical field, concretely relates to non-metal plate formula air heater's heat transfer board bearing structure for the waste heat recovery of oil refining trade heating furnace.
Background
At present, a plate-type air preheater adopted in a flue gas waste heat recovery system in the domestic petroleum refining industry is generally of a metal type. The metal plate type air preheater has the advantages of wide application range, simple structure and mature manufacturing technology, but the metal plate type air preheater has heavier equipment weight, poorer low-temperature dew point corrosion resistance and more serious dust accumulation phenomenon at a low-temperature section. The heat exchange element of the non-metal plate type air preheater can be made of non-metal materials such as glass plates, ceramic plates and the like, and is light in weight, strong in corrosion resistance, convenient to clean and not easy to accumulate dust compared with metal plates. Therefore, the non-metal plate type air preheater is a great trend for future development and has wide application prospect.
The metal plate type air preheater heat exchange plate supporting structure is simple, the periphery of the heat exchange plate can be directly welded with the metal supporting frame, metal supporting strips are usually arranged between the plate sheets, and the metal supporting strips can also be directly welded with the heat exchange plate.
The non-metal plate type air preheater cannot be directly welded with a metal frame due to the special material of the heat exchange element, the non-metal heat exchange plate is poor in strength and easy to break, and the supporting structure of the non-metal plate type air preheater is different from that of the metal plate type air preheater.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the aforesaid not enough, provide a nonmetal plate-type air heater's heat transfer board bearing structure, can effectively avoid improving holistic stability because of the cracked problem of nonmetal heat transfer board that the difference of metal support bar and nonmetal heat transfer board thermal expansion coefficient leads to.
The purpose of the utility model is realized like this:
the utility model provides a non-metal plate formula air heater's heat transfer board bearing structure, includes a plurality of non-metal heat transfer units, every non-metal heat transfer unit includes the metal support bar that the symmetry set up from top to bottom and the non-metal plate that bilateral symmetry set up, and metal support bar and non-metal plate connect and form annular channel, the tip of non-metal plate is fixed with the metal support bar through high temperature glue, is equipped with the PTFE support rod between two adjacent non-metal heat transfer units.
Preferably, the cross-section of the metal supporting strip is circular, the end part of the metal supporting strip corresponding to the non-metal plate is provided with L-shaped notches in a bilateral symmetry mode, and the metal supporting strip is divided into an internal supporting structure and an external semicircular structure by the L-shaped notches.
Preferably, the length direction of the PTFE support rod is the same as the flow direction of the flue gas.
Preferably, a nonmetal supporting strip is arranged inside each nonmetal heat exchange unit.
The utility model has the advantages that:
the utility model discloses can effectively avoid improving holistic stability because of the cracked problem of nonmetal heat transfer board that metal support bar and nonmetal heat transfer board coefficient of thermal expansion difference lead to.
Drawings
FIG. 1 is a schematic view of a sealing structure of a tube plate and a heat exchange unit of a non-metal plate type air preheater.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a partially enlarged view of fig. 2.
Fig. 5 is a schematic structural view of the sealing tape.
Fig. 6 is a cross-sectional view of fig. 5.
Fig. 7 is a partially enlarged view of fig. 6.
Fig. 8 is a schematic structural view of the platen.
FIG. 9 is a schematic cross-sectional view of a non-metallic heat exchange unit.
Fig. 10 is a schematic structural view of a metal support bar.
FIG. 11 is a force diagram of a non-metal heat exchange unit.
Wherein: a non-metal heat exchange unit 1; 1.1 of a metal supporting strip; 1.1.1 of an L-shaped notch; a support structure 1.1.2; a semicircular structure 1.1.3; a non-metallic plate 1.2; 1.3 of high-temperature glue; a metal tube plate 2; a seal strip 3; 3.1 of a boss; boss holes 3.1.1; the sawtooth projections are 3.1.1.1; 3.2 of convex ribs; a pressing plate 4; mounting holes 4.1; a screw 5; a PTFE support rod 6; a short support strip 7; the long support strip 8.
Detailed Description
Referring to fig. 1-11, a detachable sealing structure of a non-metal plate type air preheater comprises a non-metal heat exchange plate group, wherein a metal tube plate 2 and a sealing strip 3 are sequentially sleeved at the end of the non-metal heat exchange plate group, a boss 3.1 is arranged on the outer end face of the sealing strip 3, a pressing plate 4 is sleeved on the boss 3.1, the pressing plate 4 is pressed and fixed with the metal tube plate 2 through a screw 5, and the non-metal heat exchange plate group is provided with a plurality of non-metal heat exchange units 1.
Every nonmetal heat transfer unit 1 includes the nonmetal board 1.2 that the metal support bar 1.1 and the bilateral symmetry that the longitudinal symmetry set up, and metal support bar 1.1 and nonmetal board 1.2 connect and form annular channel, annular channel's outer wall is the key type, nonmetal board 1.2's tip is fixed with metal support bar 1.1 through high temperature glue 1.3. The nonmetal plate 1.2 adopts a heat-resistant glass plate or a tetrafluoro plate, and the main component of the material does not react with sulfuric acid, so that the problem of corrosion of a heat exchange element at a low-temperature section cannot occur. The temperature of the discharged smoke can be reduced to the maximum extent to raise the temperature of combustion air and improve the heat efficiency of the furnace.
The metal support strip 1.1 is formed by the processing of stainless steel metal bar, metal support strip 1.1's cross-section is circular, metal support strip 1.1 corresponds the tip bilateral symmetry of non-metallic plate 1.2 and is equipped with L type breach 1.1.1, and L type breach 1.1.1 splits metal support strip 1.1 into inside bearing structure 1.1.2 and outside semi-circular structure 1.1.3. The high-temperature glue 1.3 is smeared on the surface of the L-shaped notch 1.1.1, and the metal supporting strip 1.1 and the nonmetal plate 1.2 are bonded together by the high-temperature glue 1.3. Because the extension elasticity of the solidified high-temperature adhesive 1.3 is up to 2.9 times, the problem that the nonmetal heat exchange plate is cracked due to the fact that the metal supporting bars and the nonmetal heat exchange plate have different thermal expansion coefficients can be effectively avoided.
The metal tube plate 2 is provided with a tube plate hole corresponding to the nonmetal heat exchange unit 1, the metal tube plate 2 is provided with a threaded hole, and the pressing plate 4 is provided with a mounting hole 4.1 corresponding to the threaded hole. The convenience of equipment inspection and maintenance is greatly improved.
After the non-metal plate heat exchange unit 1 is installed in the tube plate hole, the stress is mainly concentrated on the two metal supporting bars. The weight of nonmetal heat transfer board transmits the metal support bar through the flexible coupling form that high temperature glued on, and the semicircular structure 1.1.3 dispersion to the tube sheet downthehole of metal support bar is passed through to whole nonmetal board heat transfer unit 1's weight, can effectively avoid the nonmetal heat transfer board damage that stress concentration leads to.
Boss 3.1 corresponds non-metallic heat transfer unit 1 and is equipped with boss hole 3.1.1, the pore wall in boss hole 3.1.1 is equipped with the protruding 3.1.1.1 of sawtooth, utilizes the toughness of silica gel to receive to form interference fit after the extrusion, the leakproofness of the equipment of assurance. The inside and outside both ends face of sealing strip 3 all is equipped with protruding muscle 3.2, the laminating of 4 interior terminal surfaces of clamp plate and the 3 outer terminal surfaces of sealing strip is compressed tightly. The sealing strip 3 is made of silica gel, has high adsorption performance, stable chemical property, good thermal stability, higher mechanical strength and the like, and adopts an integrated compression molding technology. Because metal tube sheet and clamp plate all adopt the metal material, consider that the smoothness of metal surface is not very high, sealing strip 3 increases protruding muscle 3.2 at the contact surface with metal tube sheet, clamp plate, and sealing strip 3 is better after being forced and extruded.
Be equipped with PTFE support rod 6 between two adjacent nonmetal heat transfer units 1, 6 length direction of PTFE support rod is the same with flue gas flow direction. In the air flow direction, when the length of the nonmetal heat exchange unit is too long, the PTFE support rod 6 is arranged to prevent the heat exchange plate from being cracked due to too large deflection of the metal support bars and the nonmetal heat exchange plate.
In order to improve the strength of the ports of the nonmetal heat exchange units, nonmetal support bars are arranged inside the ports of each nonmetal heat exchange unit 1. Nonmetal support bar includes short support bar 7 and long support bar 8, short support bar 7 is equipped with two, and the symmetry sets up the center at nonmetal heat transfer unit 1's tip, long support bar 8 is unanimous with nonmetal heat transfer unit 1's length, long support bar 8 is equipped with two, and two long support bar 8 symmetries set up the upper and lower both sides at short support bar 7.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (4)
1. The utility model provides a non-metal plate air heater's heat transfer board bearing structure which characterized in that: including a plurality of nonmetal heat transfer units, every nonmetal heat transfer unit includes the metal support strip that the symmetry set up from top to bottom and the nonmetal board that bilateral symmetry set up, and metal support strip and nonmetal board are connected and are formed annular channel, the tip of nonmetal board is fixed with the metal support strip through high temperature glue, is equipped with the PTFE support rod between two adjacent nonmetal heat transfer units.
2. A heat exchange panel support structure for a non-metallic panel air preheater as recited in claim 1, wherein: the cross-section of metal support bar is circular, the tip bilateral symmetry that the metal support bar corresponds the non-metallic plate is equipped with L type breach, and inside bearing structure and outside semicircular structure are cut apart into with the metal support bar to L type breach.
3. A heat exchange panel support structure for a non-metallic panel air preheater as recited in claim 1, wherein: the length direction of the PTFE support rod is the same as the flow direction of the flue gas.
4. A heat exchange panel support structure for a non-metallic panel air preheater as recited in claim 1, wherein: and a non-metal support bar is arranged in each non-metal heat exchange unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263546.7U CN211452029U (en) | 2019-12-17 | 2019-12-17 | Heat exchange plate supporting structure of non-metal plate type air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263546.7U CN211452029U (en) | 2019-12-17 | 2019-12-17 | Heat exchange plate supporting structure of non-metal plate type air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211452029U true CN211452029U (en) | 2020-09-08 |
Family
ID=72304707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922263546.7U Active CN211452029U (en) | 2019-12-17 | 2019-12-17 | Heat exchange plate supporting structure of non-metal plate type air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211452029U (en) |
-
2019
- 2019-12-17 CN CN201922263546.7U patent/CN211452029U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Heat exchange plate support structure of non-metallic plate air preheater Effective date of registration: 20220928 Granted publication date: 20200908 Pledgee: Jiangsu Jiangyin Rural Commercial Bank Co.,Ltd. Xinqiao sub branch Pledgor: JIANGSU YANXIN SCI-TECH Co.,Ltd. Registration number: Y2022320010556 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200908 Pledgee: Jiangsu Jiangyin Rural Commercial Bank Co.,Ltd. Xinqiao sub branch Pledgor: JIANGSU YANXIN SCI-TECH Co.,Ltd. Registration number: Y2022320010556 |