CN108050865A - It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance - Google Patents
It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance Download PDFInfo
- Publication number
- CN108050865A CN108050865A CN201711295021.0A CN201711295021A CN108050865A CN 108050865 A CN108050865 A CN 108050865A CN 201711295021 A CN201711295021 A CN 201711295021A CN 108050865 A CN108050865 A CN 108050865A
- Authority
- CN
- China
- Prior art keywords
- air
- header
- inner tube
- outer tube
- tube
- Prior art date
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of heat exchanger apparatus for preventing casing from cracking and to reduce flow resistance, including：Air intlet header, hot air outlet header, air inner tube, air outer tube and convex heart end socket；Air inner tube is arranged at air intlet header lower face, and air inner tube upper end opening is connected with the internal chamber of air intlet header；Hot air outlet header is arranged at air intlet header lower end, air outer tube is arranged at hot air outlet header lower face, air inner tube tube body stretches into air outer tube longitudinally through hot air outlet header, convex heart end socket is plugged in the outer pipe end of air, convex heart end socket is internally provided with spherical surface annular chute, after cold air enters air header by air intlet device, into in each air inner tube, it flows downward along air inner tube, it meets with the umbo of convex heart end socket, after umbo rectification, it flows up eventually, it enters in the ring cavity of air inner tube and air outer tube.
Description
Technical field
The present invention relates to Thermal Power Engineering technical fields, and in particular to a kind of to prevent casing from cracking and reduce the heat exchanger of flow resistance
Device.
Background technology
It is Cryogenic air in the pipe of double-tube heat exchanger, pipe is outer to be contacted with high-temperature flue gas, and outer tube one end is welded with semicircle end socket,
Since pipe inner air and outer air and the high-temperature flue gas temperature difference are big, larger thermal stress is generated, it is caused easily to crack.And inner air tube impacts
Folding flows up behind circular head bottom, causes high resistance.In order to solve the problems, such as this, devise one kind be simple to manufacture, energy
It effectively prevents double-tube heat exchanger from cracking, reduces the device of flow resistance, so as to extend heat exchanger service life, reduce the effect of power consumption
Fruit.
The content of the invention
For above-mentioned technical problem, proposition is a kind of to be prevented casing from cracking and reduces the heat exchanger apparatus of flow resistance the present invention.
To achieve the above objectives, it is achieved through the following technical solutions：
It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance, including：Air intlet header, hot air outlet collection
Case, air inner tube, air outer tube and convex heart end socket；
Air intlet header one side is provided with to fill to the air intlet of air intlet header internal chamber injection air
It puts；
Air inner tube quantity is more than or equal to 1, is arranged at air intlet header lower face, air inner tube upper end opening and sky
The internal chamber connection of gas import header；
Hot air outlet header is arranged at air intlet header lower end, and one side is provided with and hot air outlet header inner chamber
Room connects to discharge the air outlet device of hot inside air；
Air outer tube quantity is identical with the quantity of air inner tube, and air outer tube is arranged at hot air outlet header lower face,
The open top of air outer tube is connected with hot air outlet header internal chamber, and the extending direction of the central axis of air outer tube with
The extending direction of air inner tube central axis is consistent；
Wherein, the lumen diameter of air outer tube is more than the lumen diameter of air inner tube；Air inner tube tube body is longitudinally through warm
Air outlet slit header stretches into air outer tube, i.e., gap forms ring cavity between air inner tube and air outer tube；
Convex heart end socket quantity is identical with the quantity of air outer tube, and is plugged in the outer pipe end of air, in convexity heart end socket
Portion is provided with spherical surface annular chute, and spherical surface annular chute is used to connect outside air inner tube outlet at bottom and air inner tube and air
The bottom inlet of ring cavity between pipe.
Air outer tube and air inner tube central coaxial；Convex heart end socket is provided centrally with the taper upwardly extended protrusion.
The taper convex surfaces of convex heart end socket connect for spherical depression with spherical surface annular chute inside edge.
It is mounted on using the present invention of above-mentioned technical proposal on the path of heat smoke process, the outer tube body of principal security air
It extend on the path of heat smoke process, after cold air enters air header by air intlet device, after air header rectification,
It into each air inner tube, flows downward, meets with the umbo of convex heart end socket, through umbo rectification along air inner tube
Afterwards, it is uniformly round and smooth to convex heart end socket perimeter by spherical surface annular chute guiding, it finally flows up, enters in air
Pipe is in the ring cavity of air outer tube, it is finally empty by air outlet device heat outputting to continue upwardly into hot air outlet header
Gas, heat exchange heat source are external heat smoke.
Since the path that flows through of air is round and smooth track transition, reduce resistance；And end socket bottom surface is by sphere centre
Protrusion and spherical surface annular chute are formed, and effectively reduce thermal stress, prevent end socket should due to heat caused by the inside and outside air-flow temperature difference
Power and be directed at cracking phenomena.
To sum up, the present invention is overall structure, and tightness is good, and overall structure science, reasonable, novelty, simple in structure, normal pressure is set
It is standby, operational safety.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Totally 4 width attached drawing of the invention, wherein：
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the overlooking the structure diagram of the convex heart end socket of the present invention.
Fig. 4 is the cross-sectional view of the convex heart end socket of the present invention.
In figure：The convex heart end sockets of 1-, 2- air outer tubes, 3- air inner tubes, 4- air outlet devices, 5- air intlet headers,
6- air outlet slit headers, 7- air intlet devices, A, spherical surface annular chute.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4 a kind of prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance, including：
Air intlet header 5, hot air outlet header 6, air inner tube 3, air outer tube 2 and convex heart end socket 1；
5 one side of air intlet header is provided with to inject the air intlet of air to 5 internal chamber of air intlet header
Device 7；
3 quantity of air inner tube is more than or equal to 1, is arranged at 5 lower face of air intlet header, 3 upper end opening of air inner tube
It is connected with the internal chamber of air intlet header 5；
Hot air outlet header 6 is arranged at 5 lower end of air intlet header, one side be provided with in hot air outlet header 6
Portion's chamber is used to discharge the air outlet device 4 of hot inside air；
2 quantity of air outer tube is identical with the quantity of air inner tube 3, and air outer tube 2 is arranged at 6 lower end of hot air outlet header
Face, 2 open top of air outer tube is connected with 6 internal chamber of hot air outlet header, and the extension of the central axis of air outer tube 2
Direction is consistent with the extending direction of 3 central axis of air inner tube；
Wherein, the lumen diameter of air outer tube 2 is more than the lumen diameter of air inner tube 3；3 tube body of air inner tube longitudinally through
Hot air outlet header 6 is stretched into inside air outer tube 2, i.e., gap forms ring cavity between air inner tube 3 and air outer tube 2；
Convex 1 quantity of heart end socket is identical with the quantity of air outer tube 2, and is plugged in 2 end of air outer tube, convexity heart end socket
1 is internally provided with spherical surface annular chute A, and spherical surface annular chute A is used to connect 3 outlet at bottom of air inner tube and air inner tube 3
The bottom inlet of ring cavity between air outer tube 2.
Air outer tube 2 and 3 central coaxial of air inner tube；Convex heart end socket 1 is provided centrally with the taper upwardly extended protrusion.
The taper convex surfaces of convex heart end socket 1 connect for spherical depression with spherical surface annular chute A inside edges.
It is mounted on using the present invention of above-mentioned technical proposal on the path of heat smoke process, principal security air outer tube 2
Body is extend on the path of heat smoke process, whole through air header 5 after cold air enters air header 5 by air intlet device 7
It after stream, into each air inner tube 3, flows downward, meets with the umbo of convex heart end socket 1, through center along air inner tube 3
It after protrusion rectification, is oriented to by spherical surface annular chute A uniformly round and smooth to convex 1 perimeter of heart end socket, finally flowed up, into
Enter into the ring cavity of air inner tube 3 and air outer tube 2, continue upwardly into hot air outlet header 6 finally by air outlet slit
Device 4 exports hot-air, and heat exchange heat source is external heat smoke.
Wherein, hot air outlet header 6 and air intlet header 5 can design for integral type, middle part by partition plate (can every
Embedded one layer of thermal insulation layer between plate) it is divided into two chambers up and down.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention, any to be familiar with this professional technology people
Member without departing from the scope of the present invention, when the technology contents using the disclosure above make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, technical spirit pair according to the invention
Any simple modification, equivalent change and modification made for any of the above embodiments, in the range of still falling within technical solution of the present invention.
Claims (3)
1. a kind of prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance, which is characterized in that including：Air intlet header (5),
Hot air outlet header (6), air inner tube (3), air outer tube (2) and convex heart end socket (1)；
Air intlet header (5) one side is provided with to inject the air of air to air intlet header (5) internal chamber
Inlet device (7)；
Air inner tube (3) quantity is more than or equal to 1, is arranged at air intlet header (5) lower face, in air inner tube (3)
End opening is connected with the internal chamber of air intlet header (5)；
The hot air outlet header (6) is arranged at air intlet header (5) lower end, and one side is provided with and hot air outlet header
(6) internal chamber connects to discharge the air outlet device (4) of hot inside air；
Air outer tube (2) quantity is identical with the quantity of air inner tube (3), and air outer tube (2) is arranged at hot air outlet collection
Case (6) lower face, (2) open top of air outer tube is connected with hot air outlet header (6) internal chamber, and air outer tube (2)
Central axis extending direction it is consistent with the extending direction of air inner tube (3) central axis；
Wherein, the lumen diameter of air outer tube (2) is more than the lumen diameter of air inner tube (3)；Air inner tube (3) tube body is longitudinally worn
Overfire air outlet header (6) stretches into air outer tube (2) inside, i.e., gap is formed between air inner tube (3) and air outer tube (2)
Ring cavity；
Convex heart end socket (1) quantity is identical with the quantity of air outer tube (2), and is plugged in air outer tube (2) end, convexity
Heart end socket (1) is internally provided with spherical surface annular chute (A), and spherical surface annular groove (A) for connect air inner tube (3) outlet at bottom with
The bottom inlet of ring cavity between air inner tube (3) and air outer tube (2).
It a kind of prevent casing from cracking 2. according to claim 1 and reduces the heat exchanger apparatus of flow resistance, it is characterised in that：
The air outer tube (2) and air inner tube (3) central coaxial；The convex heart end socket (1) is provided centrally with what is upwardly extended
Taper protrusion.
It a kind of prevent casing from cracking 3. according to claim 2 and reduces the heat exchanger apparatus of flow resistance, it is characterised in that：
The taper convex surfaces of convex heart end socket (1) connect for spherical depression with spherical surface annular chute (A) inside edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295021.0A CN108050865A (en) | 2017-12-08 | 2017-12-08 | It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295021.0A CN108050865A (en) | 2017-12-08 | 2017-12-08 | It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050865A true CN108050865A (en) | 2018-05-18 |
Family
ID=62123264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711295021.0A Pending CN108050865A (en) | 2017-12-08 | 2017-12-08 | It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942834A (en) * | 2019-12-25 | 2020-03-31 | 南华大学 | Lead-based fast reactor pressure vessel and lower end enclosure thereof |
| CN117419586A (en) * | 2023-12-19 | 2024-01-19 | 中国核动力研究设计院 | Unidirectional micro-channel heat exchange tube assembly and heat exchanger |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126405U (en) * | 1992-05-28 | 1992-12-30 | 聂春分 | External heating inversely flow-collecting radiation heat exchanger |
| CN2457453Y (en) * | 2000-12-28 | 2001-10-31 | 于绍文 | Large hot-air furnace with reflective arch energy secondary burning |
| CN2458503Y (en) * | 2000-12-28 | 2001-11-07 | 于绍文 | Secondary combustion hot-air furnace with reflecting arch |
| CN2566184Y (en) * | 2002-07-11 | 2003-08-13 | 于绍文 | Barrel type hot-blast stove |
| CN101660840A (en) * | 2009-09-28 | 2010-03-03 | 于绍文 | Hot-blast stove with combustion equipment |
-
2017
- 2017-12-08 CN CN201711295021.0A patent/CN108050865A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126405U (en) * | 1992-05-28 | 1992-12-30 | 聂春分 | External heating inversely flow-collecting radiation heat exchanger |
| CN2457453Y (en) * | 2000-12-28 | 2001-10-31 | 于绍文 | Large hot-air furnace with reflective arch energy secondary burning |
| CN2458503Y (en) * | 2000-12-28 | 2001-11-07 | 于绍文 | Secondary combustion hot-air furnace with reflecting arch |
| CN2566184Y (en) * | 2002-07-11 | 2003-08-13 | 于绍文 | Barrel type hot-blast stove |
| CN101660840A (en) * | 2009-09-28 | 2010-03-03 | 于绍文 | Hot-blast stove with combustion equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942834A (en) * | 2019-12-25 | 2020-03-31 | 南华大学 | Lead-based fast reactor pressure vessel and lower end enclosure thereof |
| CN117419586A (en) * | 2023-12-19 | 2024-01-19 | 中国核动力研究设计院 | Unidirectional micro-channel heat exchange tube assembly and heat exchanger |
| CN117419586B (en) * | 2023-12-19 | 2024-02-20 | 中国核动力研究设计院 | Unidirectional micro-channel heat exchange tube assembly and heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |