CN201311216Y - Plate-type preheater - Google Patents
Plate-type preheater Download PDFInfo
- Publication number
- CN201311216Y CN201311216Y CNU2008202209990U CN200820220999U CN201311216Y CN 201311216 Y CN201311216 Y CN 201311216Y CN U2008202209990 U CNU2008202209990 U CN U2008202209990U CN 200820220999 U CN200820220999 U CN 200820220999U CN 201311216 Y CN201311216 Y CN 201311216Y
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- plates
- plate
- sealing
- exhaust gases
- air
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a plate-type preheater, which comprises a cubic frame which is composed of four upright columns (5) and a horizontal connecting plate, wherein a group of heat transfer plates (6) is arranged in the frame, a steel plate belt (4) is arranged on the lateral part of each heat transfer plate (6), the heat transfer plates (6) and the steel plate belt (4) are connected into a plate structure through a connecting bolt (8), a cushion ring (7) for supporting is sleeved on the connecting bolt (8) between two plates, two plates form an air passage and a smoke passage, wherein the air passage and the smoke passage are arranged in an interleaving mode, wherein a baffling plate (3) is arranged between two plates which form a side smoke passage, the upper portion and the lower portion of the smoke passage are sealed, and sealing plates (10) are arranged on two sides of the smoke passage. The heat transfer plates and the steel plate belt replace the welding connecting mode with connecting bolt connection, thereby solving the problem that a joint of weld beads is shredded in the working environment due to uneven temperature, the steel plate belt is pressed tightly through sealing angle steel to isolate air circulation between the side of air and the side of smoke, and full metal sealing of the whole structure is realized.
Description
Technical field
The utility model is mainly used in petroleum chemical industry; relate generally to a kind of plate type preheater; carrying out Waste Heat Recovery by the high-temperature flue gas that industrial furnaces such as boiler, heating furnace and waste gas catalytic incineration stove are produced with the used cold air heat exchange of burning, is the visual plant of realizing cutting down the consumption of energy, improving the thermal efficiency, energy savings, protection environment.
Background technology
At present the air preheater used of petrochemical industry all has certain deficiency, and traditional heat pipe preheater ubiquity that dust stratification is serious, maintenance cost is high, the time between overhauls(TBO) is long, metal consumption is big and problem such as bulky; The power consumption of swinging (heat accumulating type) air preheater, leak out, problem such as dust stratification coking and cold end corrosion is more serious; The shell and tube air preheater since low, the quality of heat transfer efficiency big and involve great expense in petrochemical equipment, use less.Plate type preheater then has advantages such as heat transfer coefficient height, pressure drop is less, compactness is very high, simple in structure, easily manufactured, and therefore, plate type preheater is a kind of up-and-coming used for industrial furnace air preheater.
Just begin extensive use abroad from twentieth century end beginning plate type preheater, as OCAP (Open Channel AirPreheater) type heat exchanger, also has a kind of APEX (AdvancedPlate Exchangers) plate air preheater of ABB Lummus Heat Transfer company exploitation etc.Some domestic research institutes and some business research have been developed some plate air preheaters.But above-mentioned plate type preheater mainly is to adopt the mode of welding to connect sealing, adopt the plate type preheater of this connected mode can cause bond open owing to thermal expansion is inhomogeneous in use for some time, thereby cause the gas of both sides to mix mutually, influence result of use.Also have a kind of mode by the densification strip of paper used for sealing to seal, the back is aging easily but sealing strip is heated.
Summary of the invention
The purpose of this utility model provides a kind of plate type preheater, to improve existing connection sealing means, adopts to be rigidly connected and the all-metal sealing, and preheater is made modularization, as required, can make up arbitrarily.
The purpose of this utility model can adopt following technical scheme to realize: it comprises the cube frame that is made of four root posts and horizontal connecting plate, in framework, be provided with one group of heat exchanger plates, do not have one heat exchanger plates sidepiece to be provided with a steel plate band, heat exchanger plates and steel plate band connect and compose sheet structure by connecting screw rod, cover is useful on the packing ring of support on the connecting rod between per two plates, constitute air and exhaust gases passes between two plates, air and exhaust gases passes are crisscross arranged, wherein constitute between two plates of sidepiece exhaust gases passes and be provided with deflector, the upper and lower sealing of exhaust gases passes is provided with sealing plate in the exhaust gases passes two sides.
Bottom, the top of the described exhaust gases passes air inlet one side and the one side of giving vent to anger are respectively arranged with the sealing angle steel, by the sealing angle steel steel plate band are compressed.
Described sealing plate outer setting has reinforcement, and reinforcement and column are connected and fixed.
Each one week of face of six faces of cube frame of described preheater is provided with adpting flange.
From said structure as can be known, heat exchanger plates and steel plate band are connected the connected mode that replaces welding with connecting screw rod, therefore solved weld seam in working environment because problem is torn in the junction that the temperature inequality causes; By the sealing angle steel steel plate band is compressed, completely cut off the gas communication between air side and the fume side, realized the all-metal sealing of total.Gasket sleeve all has packing ring to support on connecting rod between per two plates, prevent the internal modification of plate.Deflector between plate had both played the flue gas water conservancy diversion, had played rigid support again.The steel plate in the heat exchanger plates outside has taken up the effect of supporting heat exchanger plates and sealing, and the gas of both sides can not mixed mutually.Whole sheet structure is fixed between four columns by the sealing plate and the reinforcement at two ends, and reinforcement adopts the form of welding to be connected with column.
During preheater work, air and flue gas enter from top and side both direction respectively, by the heat transferred air of heat exchanger plates with flue gas, owing to adopted cubical structure, can increase the preheater module in six different directions as required, to satisfy the needs of different user.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure: 1, adpting flange, 2 sealing angle steel, 3, deflector, 4, the steel plate band, 5, column, 6, heat exchanger plates, 7, packing ring, 8, connecting screw rod, 9, reinforcement, 10 sealing plates, 11, air, 12, flue gas.
The specific embodiment
In conjunction with the accompanying drawings, specific embodiment of the utility model is described.
As shown in Figure 1, it comprises the cube frame that is made of four root posts 5 and horizontal connecting plate, in framework, be provided with one group of heat exchanger plates 6, heat exchanger plates 6 sidepieces of each piece are provided with a steel plate band 4, heat exchanger plates 6 and steel plate band 4 connect and compose sheet structure by one group of connecting screw rod 8, cover is useful on the packing ring 7 of support on the connecting screw rod 8 between per two plates, constitute air and exhaust gases passes between two plates, air and exhaust gases passes are crisscross arranged, wherein constitute between two plates of sidepiece exhaust gases passes and be provided with deflector 3, the upper and lower sealing of exhaust gases passes is provided with sealing plate 10 in the exhaust gases passes two sides.Bottom, the top of the exhaust gases passes air inlet one side and the one side of giving vent to anger is respectively arranged with sealing angle steel 2, by sealing angle steel 2 steel plate band 4 compressed.In sealing plate 10 outer setting reinforcement 9 is arranged, reinforcement 9 is connected and fixed with column 5.Be provided with adpting flange 1 each one week of face at six faces of cube frame of preheater.
Air and flue gas be staggered fluid interchange between plate, and the deflector 3 of fume side had both played the effect of water conservancy diversion, had strengthened heat transfer, had also played the effect of rigid support, had strengthened the rigidity between heat exchanger plates.Heat exchanger plates 6 is connected by connecting screw rod 8 with steel plate band 4, accompanies packing ring 7 between the plate, prevents the plate distortion, owing to do not have weld seam in the heat transfer structure, can produce the possibility of bead crack after so just having avoided.Four sealing angle steel 2 are pressed in respectively on four angles of heat exchanger plates 6, have stoped flowing mutually between air and the flue gas.Heat exchanger plates compresses by sealing plate 10 and reinforcement 9, and reinforcement 9 is welded on the column 5, has guaranteed stability of structure, because welding does not directly contact with heat transfer zone herein, so can not crack because being heated inequality.According to user's needs, can several identical modules be connected as a single entity by adpting flange 1, to increase heat-transfer effect.
Claims (4)
1, a kind of plate type preheater, comprise the cube frame that constitutes by four root posts (5) and horizontal connecting plate, it is characterized in that: in framework, be provided with one group of heat exchanger plates (6), the heat exchanger plates of each piece (6) sidepiece is provided with a steel plate band (4), heat exchanger plates (6) and steel plate band (4) connect and compose sheet structure by one group of connecting screw rod (8), connecting screw rod (8) between per two plates is gone up the packing ring (7) that cover is useful on support, constitute air and exhaust gases passes between two plates, air and exhaust gases passes are crisscross arranged, wherein constitute between two plates of sidepiece exhaust gases passes and be provided with deflector (3), the upper and lower sealing of exhaust gases passes is provided with sealing plate (10) in the exhaust gases passes two sides.
2, plate type preheater according to claim 1 is characterized in that: bottom, the top of the exhaust gases passes air inlet one side and the one side of giving vent to anger are respectively arranged with sealing angle steel (2).
3, plate type preheater according to claim 1 is characterized in that: in sealing plate (10) outer setting reinforcement (9) is arranged, reinforcement (9) is connected and fixed with column (5).
4, plate type preheater according to claim 1 is characterized in that: be provided with adpting flange (1) each one week of face at six faces of cube frame of preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202209990U CN201311216Y (en) | 2008-11-07 | 2008-11-07 | Plate-type preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202209990U CN201311216Y (en) | 2008-11-07 | 2008-11-07 | Plate-type preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311216Y true CN201311216Y (en) | 2009-09-16 |
Family
ID=41108471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202209990U Expired - Lifetime CN201311216Y (en) | 2008-11-07 | 2008-11-07 | Plate-type preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311216Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226657A (en) * | 2011-04-17 | 2011-10-26 | 江苏新金达机械制造有限公司 | Heat exchanger for catalytic combustion |
| CN111412489A (en) * | 2020-05-21 | 2020-07-14 | 西安热工研究院有限公司 | Plate-type air preheater for coal-fired boiler |
| CN113983853A (en) * | 2021-11-16 | 2022-01-28 | 无锡同方人工环境有限公司 | Sealing device for heat exchanger of passive room energy environment unit |
| CN118274340A (en) * | 2024-05-30 | 2024-07-02 | 杭州通勤科技有限公司 | Mixed flow flat cavity type air preheater |
-
2008
- 2008-11-07 CN CNU2008202209990U patent/CN201311216Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226657A (en) * | 2011-04-17 | 2011-10-26 | 江苏新金达机械制造有限公司 | Heat exchanger for catalytic combustion |
| CN111412489A (en) * | 2020-05-21 | 2020-07-14 | 西安热工研究院有限公司 | Plate-type air preheater for coal-fired boiler |
| CN113983853A (en) * | 2021-11-16 | 2022-01-28 | 无锡同方人工环境有限公司 | Sealing device for heat exchanger of passive room energy environment unit |
| CN113983853B (en) * | 2021-11-16 | 2024-10-11 | 无锡同方人工环境有限公司 | Sealing device for heat exchanger of passive room energy environment unit |
| CN118274340A (en) * | 2024-05-30 | 2024-07-02 | 杭州通勤科技有限公司 | Mixed flow flat cavity type air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |