CN203421995U - Rectangular all-welded U-shaped pipe type hot net heater - Google Patents
Rectangular all-welded U-shaped pipe type hot net heater Download PDFInfo
- Publication number
- CN203421995U CN203421995U CN201320400562.6U CN201320400562U CN203421995U CN 203421995 U CN203421995 U CN 203421995U CN 201320400562 U CN201320400562 U CN 201320400562U CN 203421995 U CN203421995 U CN 203421995U
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- welded
- side plate
- heat exchanging
- pipe
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Abstract
The utility model discloses a rectangular all-welded U-shaped pipe type hot net heater, belongs to the technical field of heat exchanging equipment, and particularly relates to a steam water heat exchanging device provided with U-shaped heat exchanging pipes. The rectangular all-welded U-shaped pipe type hot net heater comprises a heat exchanging pipe bundle and a pipe box, wherein the heat exchanging pipe bundle is installed inside a shell and is composed of the U-shaped heat exchanging pipes, and one end of the shell is provided with the pipe box which is provided with a secondary heating medium inlet and a secondary heating medium outlet. The heat exchanging pipe bundle is composed of a rectangular pipe plate, the U-shaped heat exchanging pipes and rectangular supporting plates, wherein the U-shaped heat exchanging pipes sequentially penetrate through the at least two rectangular supporting plates and the rectangular pipe plate and are connected with the rectangular pipe plate in a welding and expanding mode. A semi-circular steam inlet collection box provided with a steam inlet is arranged above a side plate A and a side plate B of the shell, and a semi-cylindrical water draining collection box provided with a water draining outlet is welded below the side plate A and the side plate B of the shell, wherein the side plate A is parallel to the side plate B. The semi-cylindrical pipe box provided with the secondary heating medium inlet and the secondary heating medium outlet is welded to the end to which the rectangular pipe plate is welded. Compared with an existing U-shaped pipe type heat exchanging device, the all-welded structure is more reliable in sealing, higher in temperature resisting capability and pressure resisting capability and simpler in stricture.
Description
Technical field
The utility model belongs to heat transmission equipment, particularly uses the steam-water heat exchanging equipment of U-shaped heat exchanger tube.
Background technology
Traditional U-shaped tubular type heat exchangers for district heating, version is: circular shell and circular tube sheet, heat exchanger tube are U-shaped pipe, two ports of heat exchanger tube are at one end connected with tube sheet, toroidal shell side neck body and circular Tube-sheet Welding.Its great advantage is the thermal (temperature difference) stress that there is no shell side.Its shortcoming is that housing steam free air space is little, can not carry out replace tubes and defect repair difficulty, and heat exchanger tube stops up and is not easy to dredging etc.Traditional U-shaped pipe heat exchangers for district heating is in operation and tube bank occurs leaks the situations such as disconnected pipe and often occur, and this has just affected normal heat supply.So urgent in the industry, wish a kind of heat exchangers for district heating and can meet long-term safety operation under each operating condition.Those skilled in the art also urgent hope develops a kind of U-shaped pipe heat exchangers for district heating, solves its inherent defect.But up to the present there is not yet new progress.
Utility model content
In order to overcome the deficiency of existing U-shaped tubular type heat exchangers for district heating, the purpose of this utility model is to provide a kind of rectangle and entirely welds U-shaped tubular type heat exchangers for district heating.
The utility model solves the technical scheme that its technical problem adopts: a kind of rectangle welds U-shaped tubular type heat exchangers for district heating entirely, the bobbin carriage of importing and exporting with secondary heating agent is equipped with in heat-exchanging tube bundle, housing one end of comprising the U-shaped heat exchanger tube composition being arranged in housing, it is characterized in that: described heat-exchanging tube bundle is comprised of rectangle tube sheet, U-shaped heat exchanger tube, rectangle support plate, U-shaped heat exchanger tube passes rectangle tube sheet again and adds expanded joint with its welding through at least 2 rectangle support plates and is connected; The side plate A side plate B the being parallel to each other top of described housing is welded with the semicircle admission header with steam inlet, below is welded with the semicylindrical hydrophobic header with hydrophobic outlet, is welding one end of rectangle tube sheet and is welding the semicylindrical bobbin carriage of importing and exporting with secondary heating agent.
The right and left of described rectangle support plate is welded to connect with side plate A, side plate B respectively; The right and left of rectangle tube sheet is welded to connect with the end of side plate A, side plate B respectively; 4 ends, limit of bobbin carriage are welded to connect with 4 limits of rectangle tube sheet respectively.
The invention has the beneficial effects as follows: the direct impact of steam to tube bank avoided in the design of special-shaped shell body top admission header large space completely; Adopt U-shaped heat exchanger tube to make equipment there is no thermal (temperature difference) stress completely; Owing to adopting rectangle tube sheet, on tube sheet, the mode of stringing can be determined horizontal cloth tube pitch according to the size of throttle flow, make steam along evenly entering tube bank in the scope of housing heat exchanger tube total length, the flow velocity that enters tube bank to meet steam can not impact tube bank simultaneously.The shape of rectangle tube sheet and the spread pattern of heat exchanger tube make its heat transfer effect better, more compact structure, and can realize low drain approach heat exchange, steam saving consumption; The calandria structure of tube bank and rectangle support plate comprise ability that whole heat exchanger tube supporting forms make to restrain anti-impact to greatest extent and reach ambassador's equipment flutter failure can not occur, and can adopt the more heat exchanger tube of thin-walled; The large space design of the hydrophobic header in special-shaped shell body bottom makes its hydrophobic control of being more convenient for can effectively prevent that drainage pump from finding time; The semicircular shell design of bobbin carriage can improve its bearing capacity; All-welded version makes the stronger structure of the equipment more reliable heat resisting and pressure resisting ability of sealing simpler, is the efficient energy-saving heat-exchange equipment of a kind of ideal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A profile of Fig. 1.
In figure: 1. bobbin carriage, 2. heat-exchanging tube bundle, 3. housing, 4. rectangle tube sheet, 5.U shape heat exchanger tube, 6. rectangle support plate, 7. side plate A, 8. side plate B, 9. admission header, 10. hydrophobic header, 11. steam inlets, 12. hydrophobic outlets, 13. 2 heating agent outlets, 14. 2 heating agent imports, 15. horizontal splitter plates.
The specific embodiment
The specific embodiment of the present utility model is, as shown in the figure:
The right and left of described rectangle support plate is welded to connect with side plate A, side plate B respectively; The right and left of rectangle tube sheet is welded to connect with the end of side plate A, side plate B respectively; 4 ends, limit of bobbin carriage are welded to connect with 4 limits of rectangle tube sheet respectively.
Claims (2)
1. a rectangle welds U-shaped tubular type heat exchangers for district heating entirely, the bobbin carriage of importing and exporting with secondary heating agent is equipped with in heat-exchanging tube bundle, housing one end of comprising the U-shaped heat exchanger tube composition being arranged in housing, it is characterized in that: described heat-exchanging tube bundle is comprised of rectangle tube sheet, U-shaped heat exchanger tube, rectangle support plate, U-shaped heat exchanger tube passes rectangle tube sheet again and adds expanded joint with its welding through at least 2 rectangle support plates and is connected; The side plate A side plate B the being parallel to each other top of described housing is welded with the semicircle admission header with steam inlet, below is welded with the semicylindrical hydrophobic header with hydrophobic outlet, is welding one end of rectangle tube sheet and is welding the semicylindrical bobbin carriage of importing and exporting with secondary heating agent.
2. rectangle according to claim 1 welds U-shaped tubular type heat exchangers for district heating entirely, it is characterized in that: the right and left of described rectangle support plate is welded to connect with side plate A, side plate B respectively; The right and left of rectangle tube sheet is welded to connect with the end of side plate A, side plate B respectively; 4 ends, limit of bobbin carriage are welded to connect with 4 limits of rectangle tube sheet respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400562.6U CN203421995U (en) | 2013-07-05 | 2013-07-05 | Rectangular all-welded U-shaped pipe type hot net heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400562.6U CN203421995U (en) | 2013-07-05 | 2013-07-05 | Rectangular all-welded U-shaped pipe type hot net heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421995U true CN203421995U (en) | 2014-02-05 |
Family
ID=50021091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320400562.6U Expired - Lifetime CN203421995U (en) | 2013-07-05 | 2013-07-05 | Rectangular all-welded U-shaped pipe type hot net heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307911A (en) * | 2013-07-05 | 2013-09-18 | 山东北辰机电设备股份有限公司 | Rectangular fully welded U-shaped tube type heating network heater |
| CN104864746A (en) * | 2015-06-10 | 2015-08-26 | 江苏广旭热管科技有限公司 | U-shaped tube heat-exchanging unit |
-
2013
- 2013-07-05 CN CN201320400562.6U patent/CN203421995U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307911A (en) * | 2013-07-05 | 2013-09-18 | 山东北辰机电设备股份有限公司 | Rectangular fully welded U-shaped tube type heating network heater |
| CN104864746A (en) * | 2015-06-10 | 2015-08-26 | 江苏广旭热管科技有限公司 | U-shaped tube heat-exchanging unit |
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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 |
Granted publication date: 20140205 |
|
| CX01 | Expiry of patent term |