CN203518350U - Tank type heat exchanger - Google Patents
Tank type heat exchanger Download PDFInfo
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- CN203518350U CN203518350U CN201320451885.8U CN201320451885U CN203518350U CN 203518350 U CN203518350 U CN 203518350U CN 201320451885 U CN201320451885 U CN 201320451885U CN 203518350 U CN203518350 U CN 203518350U
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- heat exchange
- tank
- heat exchanger
- dividing plate
- spiral
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Abstract
The utility model discloses a tank type heat exchanger. The tank type heat exchanger comprises a heat exchange tank and a coiled tube type water pipe with an outer rib, wherein the heat exchange tank is provided with a refrigerant inlet and a refrigerant outlet, the coiled tube type water pipe with the outer rib is arranged in the heat exchange tank and comprises a spiral heat exchange pipe with an outer rib, a water outlet pipe and a water inlet pipe, the spiral heat exchange pipe with the outer rib is arranged in the heat exchange tank, the water outlet pipe and the water inlet pipe extend out of the two ends of the heat exchange pipe respectively, and spirally distributed separation plates are respectively arranged between adjacent pipelines on the spiral heat exchange pipe with the outer rib. The tank type heat exchanger can avoid the situation that a layer of liquid film is formed on the surface of the outer rib of the water pipe, thereby improving heat exchange efficiency.
Description
Technical field
The utility model relates to a kind of tank-type heat exchanger, belongs to technical field of refrigeration equipment.
Background technology
With reference to Fig. 1, heat exchanger of the prior art consists of heat exchange tank 1 and the coiled water pipe 2 of being located in heat exchange tank 1, and the top of heat exchange tank 1 or top are provided with refrigerant import 11, and its bottom or bottom are provided with refrigerant exit 12; The bottom water inlet pipe of the described coiled water pipe 2 with external fin is connected with outside water inlet pipe, and its top outlet pipe is connected with outside outlet pipe.In the course of work, the heat exchange that is condensed in heat exchange tank of the refrigerant of existing heat exchanger, at heat exchange tank top, refrigerant condenses into drop, be subject to gravity and pressure-acting, drop will be attached to tube wall along water pipe and flow from top to bottom, and drop flows downward in process, is attached on water pipe tube wall always, the outer surface of Jiang lower floor water pipe forms one deck liquid film, the thickness of liquid film that refrigerant forms will constantly increase from top to bottom, and heat exchange thermal resistance value constantly increases, and seriously reduces heat exchange efficiency.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is for a kind of simple in structure, tank-type heat exchanger that heat exchange efficiency is high is provided, and it can avoid forming one deck liquid film on the external fin surface of water pipe, thereby improves heat exchange efficiency.
For achieving the above object, the utility model adopts following technical scheme:
A tank-type heat exchanger, comprises the heat exchange tank with refrigerant import and refrigerant exit, and is located at the coiled water pipe with external fin in heat exchange tank; It is characterized in that: described coiled water pipe comprises the spiral heat exchange tube with external fin being arranged in heat exchange tank, and distinguish extended outlet pipe, water inlet pipe by the two ends of heat exchanger tube; The dividing plate distributing is in the shape of a spiral set between adjacent pipeline on the described spiral heat exchange tube with external fin.
Realizing the purpose of this utility model can also be by taking following technical scheme to reach:
Realizing a kind of embodiment of the present utility model is: the center of described dividing plate is fixedly connected with the external fin of spiral heat exchange tube, and two end is protruding respectively; The external part of described dividing plate is equipped with downward-sloping kink.
Realizing a kind of embodiment of the present utility model is: described dividing plate is comprised of the some dividing plates that distribute in the shape of a spiral; Or described dividing plate is that a global shape is spiral helicine dividing plate.
Realizing a kind of embodiment of the present utility model is: the both sides of described dividing plate offer some breach.
Realizing a kind of embodiment of the present utility model is: when dividing plate quantity is several, between two adjacent dividing plates, be equipped with gap.
Realizing a kind of embodiment of the present utility model is: the width of described dividing plate equates with the body external diameter of spiral heat exchange tube with external fin.
Realizing a kind of embodiment of the present utility model is: top or the top of heat exchange tank is located in described refrigerant import, and refrigerant exit is located at bottom or the bottom of heat exchange tank.
Realizing a kind of embodiment of the present utility model is: described outlet pipe is positioned at the upper end of heat exchanger tube, and it is connected with outside outlet conduit through heat exchange tank; Described water inlet pipe is positioned at the lower end of heat exchanger tube, and it is connected with outside inlet channel through heat exchange tank.
The beneficial effects of the utility model are:
1, the utility model is by be provided with dividing plate on the described spiral heat exchange tube with external fin, and described dividing plate lays respectively between pipeline adjacent on the spiral heat exchange tube with external fin and in the shape of a spiral and distributes.The refrigerant formation drop that is condensed, drop on external fin water pipe tube wall will flow downward along dividing plate, directly be dropped in heat exchange tank bottom, this process, the drop flowing downward no longer contacts with lower layer of water tube wall, no longer forms refrigerant liquid film on water pipe tube wall, or refrigerant liquid film attenuate greatly, namely the heat exchange thermal resistance between refrigerant steam and water significantly reduces, and so, the heat exchange efficiency of refrigerant significantly improves.2, the utility model is provided with downward-sloping kink at the external part of dividing plate, can make drop flow downward more smooth and easyly.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat exchanger of the prior art.
Fig. 2 is the structural representation of the heat exchanger of specific embodiment of the utility model 1.
Fig. 3 is the partial cutaway diagram of the spiral heat exchange tube of specific embodiment of the utility model 1.
Fig. 4 is the structural representation that the heat exchanger of specific embodiment of the utility model 1 is connected with external refrigeration system.
Wherein, 1, heat exchange tank; 11, refrigerant import; 12, refrigerant exit; 2, coiled water pipe; 21, spiral heat exchange tube; 21-1, pipeline; 22, outlet pipe; 23, water inlet pipe; 3, dividing plate; 31, kink; 4, compressor; 5, evaporimeter; 6, throttling arrangement.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
Specific embodiment:
With reference to Fig. 2-Fig. 3, a kind of tank-type heat exchanger described in the present embodiment, comprises the heat exchange tank 1 with refrigerant import 11 and refrigerant exit 12, and is located in heat exchange tank 1 the coiled water pipe 2 with external fin; Top or the top of heat exchange tank 1 is located in described refrigerant import 11, and refrigerant exit 12 is located at bottom or the bottom of heat exchange tank 1.
The described coiled water pipe 2 with external fin comprises the spiral heat exchange tube 21 with external fin being arranged in heat exchange tank 1, and distinguishes extended outlet pipe 22, water inlet pipe 23 by the two ends of the heat exchanger tube 21 with external fin; Described outlet pipe 22 is positioned at the upper end of heat exchanger tube 21, and it is connected with outside outlet conduit through heat exchange tank 1; Described water inlet pipe 23 is positioned at the lower end of heat exchanger tube 21, and it is connected with outside inlet channel through heat exchange tank 1.
On described external fin spiral heat exchange tube 21, be provided with some dividing plates 3, described some dividing plates 3 lay respectively between pipeline 21-1 adjacent on spiral heat exchange tube 21 and in the shape of a spiral and distribute.The center of every dividing plate 3 is fixedly connected with the external fin of spiral heat exchange tube 21, and two end is protruding respectively; The external part of described every dividing plate 3 is equipped with downward-sloping kink 31.Between two adjacent dividing plates 3, be equipped with gap, facilitate spiral or decline.Spacer width equates with the body external diameter of spiral heat exchange tube with external fin.In order to meet spiral or the decline requirement of dividing plate, can also offer in the both sides of described dividing plate some breach.
With reference to Fig. 4, tank-type heat exchanger of the present utility model is in use connected with external refrigeration system, and external refrigeration system comprises compressor 4, evaporimeter 5 and the throttling arrangement 6 connecting successively; The refrigerant import 11 of described heat exchange tank 1 is connected with compressor 4 exhaust outlets, and the refrigerant exit 12 of described heat exchange tank 1 is connected with the input of throttling arrangement 6.
Operation principle of the present utility model is:
The coefficient of heat transfer of supposing water is α 1, the coefficient of heat transfer of water pipe tube wall is α 2, the liquid film coefficient of heat transfer that refrigerant forms is α 3, the coefficient of heat transfer of refrigerant steam is α 4, the wall thickness thickness of water pipe tube wall is H2, the thickness of liquid film that refrigerant forms is H3, for the H3 of old heat exchanger, will constantly increase from top to bottom.The heat exchange thermal resistance of water side: R1=1/ α 1, the heat exchange thermal resistance of water pipe tube wall: R2=H2/ α 2, the heat exchange thermal resistance of refrigerant liquid film: R3=H3/ α 3, the heat exchange thermal resistance of refrigerant steam: R4=1/ α 4.The heat exchange thermal resistance between refrigerant steam and water: R=R1+R2+R3+R4=1/ α 1+H2/ α 2+H3/ α 3+1/ α 4.
When the refrigerant formation drop that is condensed, drop on water pipe tube wall will flow downward along dividing plate, directly be dropped in heat exchange tank bottom, this process, the drop flowing downward no longer contacts with lower layer of water tube wall, no longer forms liquid film on water pipe tube wall, and namely the heat exchange thermal resistance R=R1+R2+R4=1/ α 1+H2/ α 2+1/ α 4. heat exchange thermal resistance R values between refrigerant steam and water significantly reduce, so, the heat exchange efficiency of refrigerant significantly improves.
Specific embodiment 2:
The feature of the present embodiment is: on spiral heat exchange tube, between adjacent pipeline, a global shape being set is spiral helicine dividing plate.Other are identical with specific embodiment 1.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection domain of the utility model claim within.
Claims (8)
1. a tank-type heat exchanger, comprises the heat exchange tank with refrigerant import and refrigerant exit, and is located at the coiled water pipe with external fin in heat exchange tank; It is characterized in that: the described coiled water pipe with external fin comprises the spiral heat exchange tube with external fin being arranged in heat exchange tank, and distinguish extended outlet pipe, water inlet pipe by the two ends of heat exchanger tube; The dividing plate distributing is in the shape of a spiral set between adjacent pipeline on the described spiral heat exchange tube with external fin.
2. tank-type heat exchanger according to claim 1, is characterized in that: the center of described dividing plate is fixedly connected with the external fin of spiral heat exchange tube, and two end is protruding respectively; The external part of described dividing plate is equipped with downward-sloping kink.
3. tank-type heat exchanger according to claim 1, is characterized in that: described dividing plate is comprised of the some dividing plates that distribute in the shape of a spiral; Or described dividing plate is that a global shape is spiral helicine dividing plate.
4. tank-type heat exchanger according to claim 3, is characterized in that: the both sides of described dividing plate offer some breach.
5. tank-type heat exchanger according to claim 3, is characterized in that: when dividing plate quantity is some, between two adjacent dividing plates, be equipped with gap.
6. tank-type heat exchanger according to claim 5, is characterized in that: the width of described dividing plate equates with the body external diameter of spiral heat exchange tube with external fin.
7. tank-type heat exchanger according to claim 1, is characterized in that: top or the top of heat exchange tank is located in described refrigerant import, and refrigerant exit is located at bottom or the bottom of heat exchange tank.
8. tank-type heat exchanger according to claim 1, is characterized in that: described outlet pipe is positioned at the upper end of heat exchanger tube, and it is connected with outside outlet conduit through heat exchange tank; Described water inlet pipe is positioned at the lower end of heat exchanger tube, and it is connected with outside inlet channel through heat exchange tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451885.8U CN203518350U (en) | 2013-07-26 | 2013-07-26 | Tank type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451885.8U CN203518350U (en) | 2013-07-26 | 2013-07-26 | Tank type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203518350U true CN203518350U (en) | 2014-04-02 |
Family
ID=50377275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451885.8U Expired - Fee Related CN203518350U (en) | 2013-07-26 | 2013-07-26 | Tank type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203518350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247738A (en) * | 2016-08-01 | 2016-12-21 | 张家港市三联化工科技有限公司 | 5 DEG C of recirculated cooling water devices in cryogenic distillation apparatus |
| CN106247825A (en) * | 2016-07-21 | 2016-12-21 | 苏州必信空调有限公司 | Vertical lower resistance cooling system |
-
2013
- 2013-07-26 CN CN201320451885.8U patent/CN203518350U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247825A (en) * | 2016-07-21 | 2016-12-21 | 苏州必信空调有限公司 | Vertical lower resistance cooling system |
| CN106247738A (en) * | 2016-08-01 | 2016-12-21 | 张家港市三联化工科技有限公司 | 5 DEG C of recirculated cooling water devices in cryogenic distillation apparatus |
| CN106247738B (en) * | 2016-08-01 | 2018-12-04 | 张家港市三联化工科技有限公司 | For 5 DEG C of recirculated cooling water devices in cryogenic distillation apparatus |
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| 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 |
Granted publication date: 20140402 Termination date: 20150726 |
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| EXPY | Termination of patent right or utility model |