CN202973054U - Through-wall sealing structure of supercharged boiler - Google Patents
Through-wall sealing structure of supercharged boiler Download PDFInfo
- Publication number
- CN202973054U CN202973054U CN 201220702246 CN201220702246U CN202973054U CN 202973054 U CN202973054 U CN 202973054U CN 201220702246 CN201220702246 CN 201220702246 CN 201220702246 U CN201220702246 U CN 201220702246U CN 202973054 U CN202973054 U CN 202973054U
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- boiler
- inserting tube
- sleeve
- steam generator
- casing
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Abstract
Provided is a through-wall sealing structure of a supercharged boiler. The boiler is provided with an inner casing protective plate and an outer casing. The through-wall sealing structure is characterized in that an inner sleeve penetrating into the inside of the boiler is sealed and welded on the inner casing protective plate, the outer end of the inner sleeve is connected with an inner flange plate, an inserting tube with one end penetrating into the inside of the boiler and the other end penetrating into the outside of the outer casing is arranged in the inner sleeve, and the inserting tube is in sealing connection with the inner flange plate and an inner flange plate matching disc through packing. An outer sleeve penetrating into the inside of the outer casing and sleeved on the inserting tube are sealed and welded on the outer casing, the outer end of the outer sleeve is connected with an outer flange plate, and the outer sleeve is in welding connection with an outer flange plate matching disc. The position of the inserting tube relative to the outer casing is fixed. When the inner casing protective plate and the outer casing of the supercharged boiler are expanded and contracted, the relative position of the inserting tube penetrating into the inner casing protective plate changes. The through-wall sealing structure can ensure contraction amount and expansion amount with temperature change, and can further ensure good sealing effect and safe and stable operation of the supercharged boiler.
Description
Technical field
The utility model belongs to the energy source and power industry, relates to the sealing to through the wall structure of a kind of supercharged steam generator structure through walls, particularly a kind of supercharged steam generator, realizes the sealing to through the wall of supercharged steam generator double Shell by novel flange sleeve formula hermetically-sealed construction.
Background technology
Boiler is as the nucleus equipment of naval vessel Steam Power Equipment, its developing direction be lightweight, size is little and mobility good.At present, two measures that reduce boiler size weight be respectively improve burner hearth the water-cooled degree and improve the heat absorption rate of convection heating surface, namely improve flue gas to the exothermic coefficient of tube wall.Just present Current situation, the water-cooled degree of various normal-pressure boilers all reaches capacity, is difficult to improve again.Improving flue gas is to improve the flow velocity of flue gas and the proportion of flue gas to the method for the exothermic coefficient of tube wall, and from the angle of the resistance that reduces boiler, the speed that the density ratio that improves flue gas improves flue gas is favourable.Therefore the supercharged steam generator device that improves furnace pressure is the developing direction of Naval Boiler.
Adopt the turbocharging unit to replace stem-driven turboblower to provide the combustion space of supercharged steam generator device of pressurized air little to burner hearth, volume heat load is high, its weight and size is 1/3 left and right of identical normal-pressure boiler of exerting oneself, and prospect and the advantage used on the naval vessel are self-evident.But simultaneously high volume heat load has also increased the difficulty of boiler structure design, and fire box temperature is high, and the swell increment of boiler double Shell increases, and is more rigorous for the requirement of the sealing to through the wall structure of boiler.The sealing to through the wall structure of supercharged steam generator directly affects performance and the safety of supercharged steam generator, has become one of key technology of supercharged steam generator structural design.
The utility model content
In order to improve performance and the security of supercharged steam generator sealing to through the wall structure, the utility model provides a kind of sealing to through the wall structure of supercharged steam generator, the sealing to through the wall that is used for the supercharged steam generator double Shell, can absorb amount of contraction and swell increment along with the variation of temperature, satisfy the seal request of supercharged steam generator under different load.
The technical solution adopted in the utility model is: a kind of sealing to through the wall structure of supercharged steam generator, boiler is provided with inner casing backplate and shell, it is characterized in that seal weld on the inner casing backplate is connected to the inner sleeve through boiler internal, the inner sleeve outer end is connected with inner flange, be provided with an end in inner sleeve through the Inserting Tube of the boiler internal other end through housing exterior, be connected by packing_seal between Inserting Tube and inner flange, inner flange cooperation dish; On shell, seal weld is connected to the outer tube on Inserting Tube of being enclosed within through enclosure, and the outer tube outer end is connected with the outward flange dish, and outer tube coordinates dish to be welded to connect with the outward flange dish.
Be provided with lining pipe between described inner sleeve and Inserting Tube, lining pipe and inner sleeve are welded to connect.
Described outer tube internal diameter is greater than the inner flange external diameter.
Be provided with lining pipe between described outer tube and Inserting Tube.
The utility model Inserting Tube relatively and the position of shell fix, when the inner casing backplate of supercharged steam generator, shell dilation, the relative position that Inserting Tube gos deep into the inner casing backplate changes thereupon, this moment, Inserting Tube kept sealing by packing with respect to the inner casing backplate, all the other positions are stablized solid and reliable by welding and flange seal plane connection structure, this structure can either guarantee to absorb amount of contraction and the swell increment along with variations in temperature, can guarantee good sealing effectiveness again, guarantee that supercharged steam generator can safely and steadily run.
Description of drawings
Fig. 1 is the utility model structural representation;
Number in the figure title: 1 inner casing backplate; 2 shells; 3 inner sleeves; 4 inner flanges; 5 Inserting Tubes; 6 inner flange cooperation dishes; 7 packings; 8 outer tubes; 9 outward flange dishes; 10 outward flange dish cooperation dishes; 11 lining pipes; 12 brickings.
The specific embodiment
The utility model embodiment as shown in Figure 1, the boiler of the sealing to through the wall structure of this supercharged steam generator is double-decker, bricking 12 outsides are provided with inner casing backplate 1 and shell 2, on inner casing backplate 1, seal weld is connected to the inner sleeve 3 through boiler internal, inner sleeve 3 outer ends are connected with inner flange 4, be provided with an end in inner sleeve 3 through the Inserting Tube 5 of the boiler internal other end through shell 2 outsides, Inserting Tube 5 coordinates 6, dish to be tightly connected by packing 7 with inner flange 4, inner flange; On shell 2, seal weld is connected to the outer tube 8 on Inserting Tube 5 of being enclosed within through shell 2 inside, and outer tube 8 outer ends are connected with outward flange dish 9, and outer tube 8 coordinates dish 10 to be welded to connect with the outward flange dish; 5 of inner sleeve 3 and Inserting Tubes are provided with lining pipe 11, and lining pipe 11 is welded to connect with inner sleeve 3, are used for supporting Inserting Tube 5; The utility model Inserting Tube relatively and the position of shell fix, when the inner casing backplate of supercharged steam generator, shell dilation, the relative position that Inserting Tube gos deep into the inner casing backplate changes thereupon, this moment, Inserting Tube kept sealing by packing with respect to the inner casing backplate, all the other positions are stablized solid and reliable by welding and flange seal plane connection structure, this structure can either guarantee to absorb amount of contraction and the swell increment along with variations in temperature, can guarantee good sealing effectiveness again, guarantee that supercharged steam generator can safely and steadily run.
When the utility model is implemented, the outer tube internal diameter can facilitate the installation and maintenance maintenance greater than inner flange 4 external diameters, can be provided with lining pipe or bracing frame at outer tube 8 and 5 of Inserting Tubes, and connected mode can adopt screw thread or card and structure.
Claims (4)
1. the sealing to through the wall structure of a supercharged steam generator, boiler is provided with inner casing backplate (1) and shell (2), it is characterized in that the upper seal weld of inner casing backplate (1) is connected to the inner sleeve (3) through boiler internal, inner sleeve (3) outer end is connected with inner flange (4), be provided with in inner sleeve (3) end through the boiler internal other end through the outside Inserting Tube (5) of shell (2), Inserting Tube (5) coordinates between dish (6) with inner flange (4), inner flange and is tightly connected by packing (7); The upper seal weld of shell (2) be connected to through shell (2) inner be enclosed within outer tube (8) on Inserting Tube (5), outer tube (8) outer end is connected with outward flange dish (9), outer tube (8) coordinates dish (10) to be welded to connect with the outward flange dish.
2. the sealing to through the wall structure of a kind of supercharged steam generator according to claim 1, is characterized in that being provided with lining pipe (11) between described inner sleeve (3) and Inserting Tube (5), and lining pipe (11) is welded to connect with inner sleeve (3).
3. the sealing to through the wall structure of a kind of supercharged steam generator according to claim 1, is characterized in that described outer tube (8) internal diameter is greater than inner flange (4) external diameter.
4. the sealing to through the wall structure of a kind of supercharged steam generator according to claim 3, is characterized in that being provided with lining pipe between described outer tube (8) and Inserting Tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702246 CN202973054U (en) | 2012-12-19 | 2012-12-19 | Through-wall sealing structure of supercharged boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702246 CN202973054U (en) | 2012-12-19 | 2012-12-19 | Through-wall sealing structure of supercharged boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973054U true CN202973054U (en) | 2013-06-05 |
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ID=48514124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702246 Expired - Fee Related CN202973054U (en) | 2012-12-19 | 2012-12-19 | Through-wall sealing structure of supercharged boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980170A (en) * | 2012-12-19 | 2013-03-20 | 中国船舶重工集团公司第七�三研究所 | Wall-through sealing structure of supercharged boiler |
-
2012
- 2012-12-19 CN CN 201220702246 patent/CN202973054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980170A (en) * | 2012-12-19 | 2013-03-20 | 中国船舶重工集团公司第七�三研究所 | Wall-through sealing structure of supercharged boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131219 |