CN203964693U - High-efficiency condensation device - Google Patents
High-efficiency condensation device Download PDFInfo
- Publication number
- CN203964693U CN203964693U CN201420424213.2U CN201420424213U CN203964693U CN 203964693 U CN203964693 U CN 203964693U CN 201420424213 U CN201420424213 U CN 201420424213U CN 203964693 U CN203964693 U CN 203964693U
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- Prior art keywords
- heat exchanger
- main
- collector
- auxiliary
- liquid film
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Abstract
The utility model is a kind of high-efficiency condensation device, and main heat exchanger and supplementary heat exchanger are installed in casing, and the heat exchanger tube front end of main heat exchanger is connected with main upstream end collector, and rear end is connected with main exit collector; The heat exchanger tube front end of supplementary heat exchanger is connected with auxiliary upstream end collector, and rear end is connected with auxiliary exit collector; Main exit collector is connected with auxiliary upstream end collector by guiding tube, for the gas-liquid mixture that main heat exchanger is discharged, introduces supplementary heat exchanger.The gas-liquid mixture of main heat exchanger being discharged by guiding tube is introduced in supplementary heat exchanger, has accelerated the discharge of liquid film in main heat exchanger.Accelerate the discharge of liquid film, be equivalent to reducer film thickness even liquid film taken away wall, locally produce similar dropwise condensation effect, thereby make the coefficient of heat transfer significantly increase.Owing to having increased the steam flow velocity of suitable liquid film flow direction, can make liquid film turbulization, also can make on the other hand liquid film by the wall that blows off, thereby the coefficient of heat transfer is increased.
Description
technical field
The utility model relates to a kind of condensing unit, and being mainly used in gas or steam condensing is liquid.
Technical background
The condensation condensation heat transfer that comprises steam condensing mainly contains two kinds of forms: a kind of is film condensation; Another kind is pearl (dripping shape) condensation.Pearl condensation, its surface coefficient of heat transfer is than large several times even large one orders of magnitude of film condensation.The condensation of steam in horizontal tube (or tube sheet), belongs to film condensation substantially.During film condensation, wall is always covered with by one deck liquid film, condenses to emit the heat of transformation (latent heat) and must just can pass on cooling wall through liquid film.Therefore, the main feature of film condensation, the thermal resistance that is exactly condensation heat transfer process almost all concentrates in condensate film.For film condensation, want to improve its coefficient of heat transfer, just necessary reducer film thickness, or turbulization film condensation heat transfer, the transmission of heat like this, except the laminar sublayer as thin as a wafer near wall still relies on heat-conducting mode, beyond laminar sublayer, take turbulent flow transmission as main, heat exchange efficiency is significantly increased.
Existing condenser is unresolved above-mentioned technical problem all, owing to generally can forming gas-liquid mixed phase in its outlet end collector, not only gas phase refluxes and hinders flowing of heat exchanging pipe inner fluid, and is unfavorable for reducer film thickness, therefore heat exchange efficiency is lower, and condensation effect can not be satisfactory.
Utility model content
Technical problem to be solved in the utility model is that the high-efficiency condensation device that a kind of coefficient of heat transfer and condensation efficiency are higher is provided.
For achieving the above object, the utility model has adopted following technical scheme.
High-efficiency condensation device, comprise that lower end is provided with the casing of axial flow blower with air inlet, upper end, it is characterized in that: main heat exchanger and supplementary heat exchanger are installed in casing, and the heat exchanger tube front end of main heat exchanger is connected with main upstream end collector, and rear end is connected with main exit collector; The heat exchanger tube front end of supplementary heat exchanger is connected with auxiliary upstream end collector, and rear end is connected with auxiliary exit collector; Main exit collector is connected with auxiliary upstream end collector by guiding tube, for the gas-liquid mixture that main heat exchanger is discharged, introduces supplementary heat exchanger.
Also comprise the water leg that is positioned at casing below, the shower that connects the water pump of water leg and be arranged on the interior main heat exchanger of casing and supplementary heat exchanger top; Filler between axial flow blower and shower is also installed in casing.
Main heat exchanger and supplementary heat exchanger take the mode of being arranged above and below to arrange.
Auxiliary exit collector is connected with fluid-tight.Or, also comprise auxiliary condenser; Auxiliary exit collector is connected with reservoir; Reservoir is connected with described auxiliary condenser by escape pipe.
The utlity model has following characteristics.
The gas-liquid mixture of main heat exchanger being discharged by guiding tube is introduced in supplementary heat exchanger, has accelerated the discharge of liquid film in main heat exchanger.Accelerate the discharge of liquid film, be equivalent to reducer film thickness even liquid film taken away wall, locally produce similar dropwise condensation effect, thereby make the coefficient of heat transfer significantly increase.Owing to having increased the steam flow velocity of suitable liquid film flow direction, can make liquid film turbulization, also can make on the other hand liquid film by the wall that blows off, thereby the coefficient of heat transfer is increased.
The utility model has also effectively improved the utilization rate of main heat exchanger heat-transfer surface, therefore can guarantee by the supplementary heat exchanger of small volume that main heat exchanger is all the time in high efficient heat exchanging state.
In the technical scheme of evaporating type condensing, main heat exchanger and supplementary heat exchanger share spray system and circulation, thereby make the utility model structure compacter, have not only reduced manufacturing cost, save occupation of land space, and improved the service efficiency of shower water and circulated air.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model and operation principle schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
Embodiment mono-
The present embodiment is a kind of air cooled condenser.
As shown in Figure 1, embodiment of the present utility model comprises that lower end is provided with the casing 1 of axial flow blower 15 with air inlet 7, upper end.Main heat exchanger 2 and supplementary heat exchanger 3 are installed in casing 1, and the heat exchanger tube front end of main heat exchanger 2 is connected with main upstream end collector 12, and rear end is connected with main exit collector 11.The heat exchanger tube front end of supplementary heat exchanger 3 is connected with auxiliary upstream end collector 9, and rear end is connected with auxiliary exit collector 8.Main exit collector 11 is connected with auxiliary upstream end collector 9 by guiding tube 10, for the gas-liquid mixture that main heat exchanger 2 is discharged, introduces supplementary heat exchanger 3.
Auxiliary exit collector 8 can be connected with fluid-tight 8, and fluid-tight 8 connects reservoir.
Auxiliary exit collector 8 also can directly connect reservoir, and now, reservoir is provided with escape pipe and the liquid back pipe being connected with auxiliary condenser respectively.Gas in reservoir is back to reservoir after auxiliary condenser condensation liquefaction.Reservoir also can only be provided with the escape pipe being connected with auxiliary condenser, and the gas in reservoir flows to other reservoir after auxiliary condenser condensation liquefaction.
Under axial flow blower 15 effects, cold wind enters in casing 1 and flow through supplementary heat exchanger 3 and main heat exchanger 2 from air inlet 7, carries out from casing 1 upper end, discharging after heat exchange with heat exchanger tube inner fluid.
Embodiment bis-
The present embodiment is a kind of evaporative condenser.
Still, as Fig. 1, on the basis of embodiment mono-, the present embodiment also comprises the water leg 6 that is positioned at casing 1 below, the shower 13 that connects the water pump 5 of water leg 6 and be arranged on the interior heat exchanger of casing 1 top, and wherein water pump 5 is connected with shower 13 by upper hose 4.Filler 14 between axial flow blower 15 and shower 13 is also installed in casing 1.
During as evaporative condenser, main heat exchanger 2 and the supplementary heat exchanger 3 preferably mode of being arranged above and below are arranged.The spray water flow flowing down from top heat exchanger is fallen in water leg after the heat exchanger of below.
The interior heat exchanger of the utility model casing 1 can be the two-stage shown in Fig. 1, can be also more than three grades, and three grades of above adjacent front and back level annexations are with embodiment mono-.
Claims (5)
1. high-efficiency condensation device, comprise that lower end is provided with the casing (1) of axial flow blower (15) with air inlet (7), upper end, it is characterized in that: main heat exchanger (2) and supplementary heat exchanger (3) are installed in casing (1), the heat exchanger tube front end of main heat exchanger (2) is connected with main upstream end collector (12), and rear end is connected with main exit collector (11); The heat exchanger tube front end of supplementary heat exchanger (3) is connected with auxiliary upstream end collector (9), and rear end is connected with auxiliary exit collector (8); Main exit collector (11) is connected with auxiliary upstream end collector (9) by guiding tube (10), for the gas-liquid mixture that main heat exchanger (2) is discharged, introduces supplementary heat exchanger (3).
2. high-efficiency condensation device as claimed in claim 1, it is characterized in that: also comprise the water leg (6) that is positioned at casing (1) below, connect the water pump (5) of water leg (6) and be arranged on the interior main heat exchanger of casing (1) (2) and the shower (13) of supplementary heat exchanger (3) top; The filler (14) being positioned between axial flow blower (15) and shower (13) is also installed in casing (1).
3. high-efficiency condensation device as claimed in claim 2, is characterized in that: main heat exchanger (2) and supplementary heat exchanger (3) take the mode of being arranged above and below to arrange.
4. the high-efficiency condensation device as described in claim 1 or 2 or 3, is characterized in that: auxiliary exit collector (8) is connected with fluid-tight.
5. the high-efficiency condensation device as described in claim 1 or 2 or 3, is characterized in that: also comprise auxiliary condenser; Auxiliary exit collector (8) is connected with reservoir; Reservoir is connected with described auxiliary condenser by escape pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424213.2U CN203964693U (en) | 2014-07-30 | 2014-07-30 | High-efficiency condensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424213.2U CN203964693U (en) | 2014-07-30 | 2014-07-30 | High-efficiency condensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203964693U true CN203964693U (en) | 2014-11-26 |
Family
ID=51925266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424213.2U Expired - Fee Related CN203964693U (en) | 2014-07-30 | 2014-07-30 | High-efficiency condensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203964693U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030767A (en) * | 2019-05-21 | 2019-07-19 | 李永堂 | Heating-cooling double-effect shunt energy recycling system |
| WO2021012936A1 (en) * | 2019-07-23 | 2021-01-28 | 李永堂 | Plate heat exchanger having flow-dividing plate path |
| CN112461013A (en) * | 2020-11-17 | 2021-03-09 | 同济大学 | Step-by-step condensation efficient anti-scaling evaporative condenser |
-
2014
- 2014-07-30 CN CN201420424213.2U patent/CN203964693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030767A (en) * | 2019-05-21 | 2019-07-19 | 李永堂 | Heating-cooling double-effect shunt energy recycling system |
| CN110030767B (en) * | 2019-05-21 | 2024-02-02 | 李永堂 | Cold and hot double-effect split-flow type energy recovery system |
| WO2021012936A1 (en) * | 2019-07-23 | 2021-01-28 | 李永堂 | Plate heat exchanger having flow-dividing plate path |
| CN112461013A (en) * | 2020-11-17 | 2021-03-09 | 同济大学 | Step-by-step condensation efficient anti-scaling evaporative condenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210730 |