CN205957768U - Heat -exchanging unit - Google Patents
Heat -exchanging unit Download PDFInfo
- Publication number
- CN205957768U CN205957768U CN201620753592.9U CN201620753592U CN205957768U CN 205957768 U CN205957768 U CN 205957768U CN 201620753592 U CN201620753592 U CN 201620753592U CN 205957768 U CN205957768 U CN 205957768U
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- CN
- China
- Prior art keywords
- heat
- heat exchanger
- cavity
- heat exchange
- exchanger 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a heat -exchanging unit, including gas feed, heat exchange tube, cavity, outer wall, gas outlet, the row of heat exchange tube counts n >= 2 in the cavity, and the every row of heat exchange tube quantity m >= 2 forms (m+1) individual gas passage with arranging between the adjacent heat exchange tube and between heat exchange tube and the wall, and the distance that wherein has a passageway at least is S1, S1's value range is 0 < S1 < 0.5d, and the distance that has a passageway at least is S2, S2's value range is S1, and < the distribution of staggering of 0.5L, passageway S2 two rows adjacent is not at a vertical on -line for S2, the utility model discloses a heat -exchanging unit heat exchange coefficient height, compact structure, the resistance is little and adapt to various heating loads changes, one gas formation or multichannel similar " S " the type flow field of cavity have increased the flue gas flow, the intertube has the air current to pass through simultaneously, improves the mobile reynolds number of flue gas to increase the coefficient of heat transfer between flue gas and the pipe wall, had good heat transfer effect.
Description
Technical field
This utility model is related to a kind of heat-exchanger rig, more particularly, to a kind of civilian, Industrial Boiler heat-exchanger rig.
Background technology
Civilian and Industrial Boiler employing the water pipe heat exchanger form of China is various at present, is widely used, but there is heat exchange
Coefficient is low, and the problems such as heat exchange process is short, thus causing boiler smoke temperature generally more than 300 DEG C, the boiler entirety thermal efficiency is not
Foot 70%；Meanwhile, when boiler heat load reduces, in heat exchanger, flue gas flow rate reduces, and the coefficient of heat transfer declines to a great extent, and leads to heat exchange
Ability declines to a great extent.
In the prior art, Chinese patent literature ZL200920158254.0 discloses a kind of baffle heat exchanger, described
Baffle heat exchanger is separated by three pieces of deflection plates, by the separation of deflection plate, increased flue gas flow.In the above-described techniques, by
Only have upper and lower two heat-transfer surfaces in deflection plate, heat exchange area is significantly less than the surrounding heat exchange of water pipe, makes heat exchanger overall structure not
Compact；Additionally, due to baffle, by inside heat exchanger, separately, flue gas flow increases, flow-disturbing degree increases, and resistance is larger；Work as pot
When stove thermic load reduces, in heat exchanger, flue gas flow rate reduces, and the coefficient of heat transfer declines to a great extent, and leads to exchange capability of heat to substantially reduce.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art defect, provide a kind of coefficient of heat transfer high,
Compact conformation, resistance are little and adapt to the heat-exchanger rig that various thermic loads change.
The heat-exchanger rig that this utility model provides includes gas feed, heat exchanger tube, cavity, outer wall, gas outlet, described changes
A diameter of d of heat pipe, the width of described cavity be L it is characterised in that：Row n >=2 of heat exchanger tube in described cavity, often arrange and change
Heat pipe quantity m >=2, form between the described adjacent heat exchange tubes with row and between heat exchanger tube and cavity inner wall（m+1）Individual gas leads to
Road, the width of wherein at least one passage is S1, described S1Span be 0 ＜ S1＜ 0.5d's, at least a passage
Width is S2, described S2Span be S1＜ S2＜ 0.5L, the width of adjacent two row's heat exchanger tubes is S2Passage be in staggered distribution,
Not on a vertical curve.
Further, at least（m+1）The distance of/2 passages is S1.
Further, described S1Span be 0 ＜ S1＜ 0.3d.
Further, described S2Span be 2 S1＜ S2＜ 0.5L.
Further, described S2Span be 4 S1＜ S2＜ 0.5L.
Further, in described cavity heat exchanger tube row n >=4.
Further, described often row heat exchanger tube only one of which width is S2Passage, and this passage is in heat exchanger tube and cavity
Passage between wall.
Further, the described line with row's adjacent heat exchange tubes central point is δ with the angle of horizontal plane, the value model of described δ
Enclose for 60 ° of 0 ° of δ.
The beneficial effects of the utility model are：（1）, heat-exchanger rig overall heat exchange coefficient of the present utility model increase, chamber
Along often arranging, heat exchanger tube is formed together the gas of body or multiple tracks is similar to " S " type flow field, increased flue gas flow；There is gas between pipe simultaneously
Stream passes through, and improves flow of flue gas Reynolds number, thus increasing the heat transfer coefficient between flue gas and tube wall；（2）Of the present utility model
Heat-exchanger rig effectively can strengthen Local Heat Transfer, has horizontal direction air-flow, air-flow has stronger to outer wall between described often row heat exchanger tube
Frontal impact, effectively increases the heat exchange of outer wall；（3）Heat-exchanger rig of the present utility model can significantly reduce heat exchanger drag overall and damage
Lose, compare baffle heat exchanger, deflection plate is changed to the heat exchange area that baffle pipe improves unit volume, pattern is compacter,
Air-flow is had to pass through between due to high-efficiency heat exchanger pipe, crushing is less；（4）Heat-exchanger rig of the present utility model can be greatly improved to negative
The adaptability of lotus change, when boiler Smaller load runs, heat exchanger charge flow rate is less, and light water heat exchange of heat pipe and deflection plate change
Air velocity in hot device is less, is substantially at laminar condition, and the coefficient of heat transfer is less.This utility model has between less pipe
Away from flow velocity between higher pipe can be kept, and the coefficient of heat transfer is of a relatively high.
Brief description
Fig. 1 is the structural representation of the first embodiment of this utility model.
Fig. 2 is the structural representation of this utility model second embodiment.
Fig. 3 is the flow field vector simulation drawing of this utility model second embodiment.
In figure：
1 gas feed, 2 heat exchanger tubes, 3 cavitys, 4 outer walls, 5 gas outlets, d heat exchanger tube diameter, δ change
The angle of the line of heat pipe central point and horizontal plane, S1 are same to be arranged between adjacent heat exchange tubes or heat exchanger tube and wall spacing, S2
Arrange together between adjacent heat exchange tubes or heat exchanger tube is housing width with wall spacing, L.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is elaborated.Embodiment one：As shown in figure 1, it is of the present utility model
Heat-exchanger rig, including gas feed 1, heat exchanger tube 2, cavity 3, outer wall 4, gas outlet 5；4 row's heat exchanger tubes are arranged in cavity 3
2, often arrange 6, the line of heat exchanger tube 2 central point is 15 ° with the angle δ of horizontal plane, heat exchanger tube 2 diameter d is 89mm, adjacent with row
The interval S of heat exchanger tube 21For 10mm, arrange together between adjacent heat exchange tubes or heat exchanger tube and wall interval S2For 70mm, adjacent two rows change
Heat pipe spacing is S2Passage interlock and be in both sides and the centre of 6 heat exchanger tubes.
Embodiment two：As shown in Fig. 2 heat-exchanger rig of the present utility model, including gas feed 1, heat exchanger tube 2, cavity 3,
Outer wall 4, gas outlet 5；Arrange 4 row's heat exchanger tubes 2 in cavity 3, often arrange 3, the line of heat exchanger tube 2 central point and horizontal plane
Angle δ is 15 °, and heat exchanger tube 2 diameter d is 89mm, with the interval S arranging adjacent heat exchange tubes 21For 10mm, heat exchanger tube 2 and side outer wall
Interval S2For 70mm, heat exchanger tube 2 and opposite side outer wall interval S1For 10mm, S2It is respectively in cavity with adjacent row's heat exchanger tube
Opposite flank, Fig. 3 is the flow field vector simulation drawing of the present embodiment, can be clearly seen that " S " type main flow field in cavity 3 and
Local flow field between pipe.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, some improvement can also be made on the premise of without departing from this utility model principle, these improvement also should be regarded as
Protection domain of the present utility model.
Claims (8)
1. a kind of heat-exchanger rig, including gas feed（1）, heat exchanger tube（2）, cavity（3）, outer wall（4）, gas outlet（5）, described
Heat exchanger tube（2）A diameter of d, described cavity（3）Width be L it is characterised in that：Described cavity（3）Interior heat exchanger tube（2）Row
Number n >=2, often arrange heat exchanger tube（2）Quantity m >=2, with the adjacent described heat exchanger tube of row（2）Between and heat exchanger tube（2）With cavity
（3）Formed between inwall（m+1）Individual gas passage, the width of wherein at least one passage is S1, described S1Span be
0 ＜ S1＜ 0.5d, at least width of a passage are S2, described S2Span be S1＜ S2＜ 0.5L, adjacent two rows change
Heat pipe（2）Width be S2Passage be in staggered distribution, not on a vertical curve.
2. heat-exchanger rig according to claim 1 it is characterised in that：At least（m+1）The width of/2 passages is S1.
3. heat-exchanger rig according to claim 1 it is characterised in that：Described S1Span be 0 ＜ S1＜ 0.3d.
4. heat-exchanger rig according to claim 1 it is characterised in that：Described S2Span be 2 S1＜ S2＜ 0.5L.
5. heat-exchanger rig according to claim 4 it is characterised in that：Described S2Span be 4 S1＜ S2＜ 0.5L.
6. heat-exchanger rig according to claim 1 it is characterised in that：Described cavity（3）Interior heat exchanger tube（2）Row n >=
4.
7. heat-exchanger rig according to claim 1 it is characterised in that：The described heat exchanger tube often arranged（2）Only one of which width
For S2Passage, and this passage be heat exchanger tube（2）With cavity（3）Passage between inwall.
8. according to the arbitrary described heat-exchanger rig of claim 1-7 it is characterised in that：With the adjacent described heat exchanger tube of row（2）In
The line of heart point and the angle of horizontal plane are δ, and the span of described δ is 60 ° of 0 ° of δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753592.9U CN205957768U (en) | 2016-07-18 | 2016-07-18 | Heat -exchanging unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753592.9U CN205957768U (en) | 2016-07-18 | 2016-07-18 | Heat -exchanging unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205957768U true CN205957768U (en) | 2017-02-15 |
Family
ID=57971122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620753592.9U Withdrawn - After Issue CN205957768U (en) | 2016-07-18 | 2016-07-18 | Heat -exchanging unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205957768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017157A (en) * | 2016-07-18 | 2016-10-12 | 卓宇轩 | Heat exchange device |
-
2016
- 2016-07-18 CN CN201620753592.9U patent/CN205957768U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017157A (en) * | 2016-07-18 | 2016-10-12 | 卓宇轩 | Heat exchange device |
| CN106017157B (en) * | 2016-07-18 | 2017-11-10 | 徐州众凯机电设备制造有限公司 | A kind of heat-exchanger rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170510 Address after: 221000 No. 12-8, Peach Road, Jinshan Development Zone, Xuzhou, Jiangsu Patentee after: XUZHOU ZHONGKAI MECHANICAL & ELECTRICAL EQUIPMENT MANUFACTURING CO., LTD. Address before: 221000 No. 12-8, Peach Road, Jinshan Development Zone, Xuzhou, Jiangsu Patentee before: Zhuo Yuxuan |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20171110 |
|
| AV01 | Patent right actively abandoned |