CN2869733Y - Floating-head type box-shape air heater - Google Patents
Floating-head type box-shape air heater Download PDFInfo
- Publication number
- CN2869733Y CN2869733Y CN 200520044440 CN200520044440U CN2869733Y CN 2869733 Y CN2869733 Y CN 2869733Y CN 200520044440 CN200520044440 CN 200520044440 CN 200520044440 U CN200520044440 U CN 200520044440U CN 2869733 Y CN2869733 Y CN 2869733Y
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- CN
- China
- Prior art keywords
- pipe
- frame shell
- heating tube
- head type
- tubulation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a floating-head type box heat exchanger, which comprises an arrayed tube heating block and a framed casing, characterized in that the said arrayed tube heating block is composed of a plurality of clustered heating pipe set, which the thermal transmission pipes are arrayed connected with the two mother pipes located up and down with to form a grid thermal transmission unit; a plurality of grid thermal transmission unit are connected with the two mother pipes located up and down with to form the clustered heating pipe set; vertical connectors are all provided on the up and low mother pipes, wherein the connectors on the up mother pipe are the stem inlet and the connectors on the low mother pipe are the condensing water outlet. The utility model the heating pipe block can freely expand in 3-dimension and do not generate thermal stress caused by constrain after thermal expansion and avoid the damage of rectangle tubeplate type heating block.
Description
Technical field:
The utility model relates to a kind of box-shaped air heating apparatus, particularly discloses a kind ofly to be combined by several heater blocks, does not have the floating head type box-shaped air heater of thermal expansion stress.
Background technology:
Be widely used at present the boiler air inlet system, with the box-shaped air heater of steam as thermal source, what it was common is that the board-like tubulation heater block of several rectangular tubes is formed by flange combination.The shortcoming of this kind heater block is that the steam in the tubulation makes the tubulation temperature be higher than the frame shell far away, the frame shell forms contained to the thermal expansion of tubulation, therefore tubulation can produce very big thermal expansion stress, and this kind stress often causes the welding point between tubulation and the tube sheet to pull.Tube-sheet type tubulation heater block so fault are frequent, and equipment can't run well.
Summary of the invention:
The purpose of this utility model is the shortcoming for the damaging heat stress that overcomes the existence of tube-sheet type tubulation heater block, a kind of technical scheme of head it off is proposed, a kind of floating head type box-shaped air heater is disclosed, promptly substitute the board-like tubulation heater block of rectangular tube with the floating head type tubular heater block, make that being present in the thermal stress that heats tubulation is eliminated fully, and device structure is simplified greatly also.
The utility model is achieved in that a kind of floating head type box-shaped air heater, comprise tubulation heater block and frame shell, it is characterized in that: described tubulation heater block is a plurality of primary and secondary tubular type heating tube groups, promptly be that many heat-transfer pipes are connected with the female pipe of upper and lower two levels with the tubulation form, become a grating form heat transfer unit, more several grating form heat transfer units and upper and lower two total female pipes are connected into a sub-main pipe type heating tube group; Upper and lower two total female Guan Shangjun have vertical adapter, and last pipe nipple is a steam inlet, and following pipe nipple is a condensation-water drain.Two legs made from lath are equipped with in pipe group lower end.Described primary and secondary tubular type heating tube is assembled in the rectangle frame shell, and the leg of pipe group just stands on the base plate of frame shell.Frame shell all the other two side plates and top board except that base plate is all gapped with the pipe group, and the gap is slightly larger than the thermal expansion amount of pipe group, even so the pipe group when steam is in hot state, do not touch with the frame shell joint yet.The rectangular flange of frame shell two ends for being coupled to each other with a plurality of heaters is combined into the casing of box-shaped air heater with the frame shell.The upper and lower prominent groove that is provided with the square-section of a upper and lower total female pipe of containing pipe group of described frame shell, when the adapter on upper and lower total female pipe is stretched out from prominent groove, in order to prevent that air from leaking, to take over when organizing is heated upwards expands and to float with respect to prominent groove in order to manage again, between prominent groove in top and steam connection, a packing seal box simple in structure is housed.Be to weld or the packing seal box is set between the prominent groove in bottom is taken over condensed water, can decide according to device structure rigidity.The utility model adopts the steam pipe arrangement with enough flexibilities, and when upwards expanding to adapt to the heating tube group, its steam connection can free lifting.The utility model can be gained the name along flexible the floating of packing seal box when the pipe group is heated or is cooled off because of steam connection.
The beneficial effects of the utility model are: heater block pipe group can free wxpansion in three dimensions, can not cause thermal stress because of thermal expansion is restricted in, and has avoided the damage of the board-like heater block of rectangular tube.The utility model has been got rid of the bobbin carriage that comprises tube sheet of rectangular tube plate structure, makes structure simplify labor and material saving.Owing to there is not bobbin carriage, the utility model does not belong to pressure vessel, and the bobbin carriage of the board-like heater block of rectangular tube will reach national pressure container standard as special-shaped pressure vessel on manufacturing and designing, and it is big to manufacture difficulty.
Description of drawings:
Fig. 1 is the utility model floating head type box-shaped air heater outline drawing;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the primary and secondary tubular type heating tube group structural front view of band frame shell;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is a primary and secondary tubular type heating tube group structural front view;
Fig. 6 is the side view of Fig. 5.
In the drawings: 1, air intlet awl section; 2, floating head type tubular heater block; 3, connecting flange; 4, bolts and nuts; 5, gasket seal; 6, air cushioning section; 7, air outlet slit awl section; 8, pallet; 9, steam inlet; 10, condensation-water drain; 11, packing seal box; 12, the prominent groove of strip rectangle; 13, airtight and watertight padding; 14, total female pipe; 15, female pipe; 16, heating tube; 17, lath-shaped leg.
The specific embodiment:
With reference to the accompanying drawings 1,2, a kind of floating head type box-shaped of the utility model air heater comprises tubulation heater block and frame shell.
With reference to the accompanying drawings 3,4,5,6, floating head type tubular heater block 2 is made up of primary and secondary tubular type heating tube group and frame shell, being about to many heat-transfer pipes 16 connects with the female pipe 15 of upper and lower two levels with the tubulation form, become a grating form heat transfer unit, more several grating form heat transfer units and upper and lower two total female pipes 14 are connected into a sub-main pipe type heating tube group; On upper and lower two total female pipes 14 vertical adapter is arranged all, last pipe nipple is a steam inlet 9, and following pipe nipple is a condensation-water drain 10.Two legs made from lath 17 are equipped with in pipe group lower end.Pipe is assembled in the rectangle frame shell, and the leg of pipe group just stands on the base plate of frame shell.Frame shell all the other two side plates and top board except that base plate is all gapped with the pipe group, and the gap is slightly larger than the thermal expansion amount of pipe group, even so the pipe group when steam is in hot state, do not touch with the frame shell joint yet.Frame shell two ends are the rectangular flanges 3 that can be coupled to each other with a plurality of heaters, are combined into the casing of box-shaped air heater with the frame shell.For the upper and lower total female pipe of containing pipe group, the upper and lower prominent groove 12 that a square-section is respectively arranged of frame shell, when the adapter on upper and lower total female pipe is stretched out from prominent groove, in order to prevent that air from leaking, to take over when organizing is heated upwards expands and to float with respect to prominent groove in order to manage again, between prominent groove in top and steam connection, a packing seal box 11 simple in structure is housed.Be to weld or packing seal box 11 is set between the prominent groove in bottom is taken over condensed water, can decide according to device structure rigidity.The utility model adopts the steam pipe arrangement with enough flexibilities, and when upwards expanding to adapt to the heating tube group, its steam connection can free lifting.
Claims (3)
1. floating head type box-shaped air heater, comprise tubulation heater block and frame shell, it is characterized in that: described tubulation heater block is a plurality of primary and secondary tubular type heating tube groups, promptly be that many heat-transfer pipes are connected with the female pipe of upper and lower two levels with the tubulation form, become a grating form heat transfer unit, more several grating form heat transfer units and upper and lower two total female pipes are connected into a sub-main pipe type heating tube group; Upper and lower two total female Guan Shangjun have vertical adapter, and last pipe nipple is a steam inlet, and following pipe nipple is a condensation-water drain.
2. floating head type box-shaped air heater according to claim 1, it is characterized in that: described primary and secondary tubular type heating tube is assembled in the rectangle frame shell, frame shell all the other two side plates and top board except that base plate is all gapped with the pipe group, and the gap is slightly larger than the thermal expansion amount of pipe group, the rectangular flange of frame shell two ends for being coupled to each other with a plurality of heaters.
3. floating head type box-shaped air heater according to claim 1 and 2, it is characterized in that: the upper and lower prominent groove that is provided with the square-section of a upper and lower total female pipe of containing pipe group of described frame shell is provided with the packing seal box that prevents that air from leaking between each primary and secondary tubular type heating tube group steam inlet or condensation-water drain and the prominent groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044440 CN2869733Y (en) | 2005-08-23 | 2005-08-23 | Floating-head type box-shape air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044440 CN2869733Y (en) | 2005-08-23 | 2005-08-23 | Floating-head type box-shape air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869733Y true CN2869733Y (en) | 2007-02-14 |
Family
ID=37724672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044440 Expired - Fee Related CN2869733Y (en) | 2005-08-23 | 2005-08-23 | Floating-head type box-shape air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869733Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910778B (en) * | 2008-01-07 | 2013-07-17 | 阿尔斯托姆科技有限公司 | Flexible assembly of recuperator for combustion turbine exhaust |
| CN106269075A (en) * | 2015-06-10 | 2017-01-04 | 上海泽玛克敏达机械设备有限公司 | A kind of steam heater of disintegrating machine |
-
2005
- 2005-08-23 CN CN 200520044440 patent/CN2869733Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910778B (en) * | 2008-01-07 | 2013-07-17 | 阿尔斯托姆科技有限公司 | Flexible assembly of recuperator for combustion turbine exhaust |
| CN106269075A (en) * | 2015-06-10 | 2017-01-04 | 上海泽玛克敏达机械设备有限公司 | A kind of steam heater of disintegrating machine |
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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: 20070214 Termination date: 20100823 |