CN202511660U - High-flux heat exchanger with porous surface outside pipes - Google Patents
High-flux heat exchanger with porous surface outside pipes Download PDFInfo
- Publication number
- CN202511660U CN202511660U CN2011205519702U CN201120551970U CN202511660U CN 202511660 U CN202511660 U CN 202511660U CN 2011205519702 U CN2011205519702 U CN 2011205519702U CN 201120551970 U CN201120551970 U CN 201120551970U CN 202511660 U CN202511660 U CN 202511660U
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- heat exchanger
- porous surface
- heat
- tube
- heat transfer
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Abstract
The utility model relates to a high-flux heat exchanger with a porous surface outside pipes. High-flux heat exchanging pipes with porous surfaces outside pipes are arranged in the heat exchanger, and metal porous surface function layers for strengthening the boiling heat transfer are arranged on the surfaces of the heat exchanging pipes which penetrate through supporting plate holes to be fixed in tube plate holes at the two ends. Hole diameters and deviation of the supporting plate holes are larger than those of the tube plate holes. Protection rings can be arranged in the supporting plate holes, and hole diameters and deviation of the protection rings are larger than those of the tube plate holes. According to the high-flux heat exchanger with the porous surface outside pipes, the total heat transfer efficiency is high and can achieve 1.3 times to 3 times of that of a light tube heat transfer element heat exchanger; the heat transfer temperature difference is small, and the temperature needed to achieve boiling is merely 0.6 DEG C to 1 DEG C; and the critical heat flux is high and is 1.8 times to 2 times of that of the light tube heat transfer element heat exchanger. Scaling is not easy to occurto the heating exchanging pipes, and the service life of the heat exchanger is long.
Description
Technical field
The utility model relates to the outer porous surface high flux heat exchanger of a kind of pipe, belongs to the heat transfer technology field.
Background technology
Heat exchanger is the heat transmission equipment that is widely used in the industries such as oil, chemical industry, metallurgy, medicine and refrigeration.A large amount of uses is that heat exchanger tube is the shell-and-tube heat exchanger of common light pipe at present; Because the heat-transfer effect of this type heat exchanger is general; Just in some newly-built large scale chemical plants,, make heat exchanger also be faced with the development problem of maximization because of single covering device ability increases; Obviously, improving heat exchange efficiency and equipment performance still is the main target that heat exchanger technology improves and innovates.
Summary of the invention
The purpose of the utility model is to provide a kind of pipe outer porous surface high flux heat exchanger, manages outer porous surface high flux heat exchanger tube as its main heat transfer element, can significantly improve total heat transfer efficiency of heat exchanger.
The concrete technology contents of the utility model is following:
In heat exchanger, be provided with porous surface high flux heat exchanger tube outside the pipe; High flux heat exchanger tube surface is provided with the porous surface metal functional layer of enhanced boiling heat transfer; High flux heat exchanger tube from the gripper shoe plate hole (or from gripper shoe plate hole protection ring) passes and is fixed in the tube sheet plate hole at two ends, and (or the gripper shoe plate hole protection ring) aperture of gripper shoe plate hole and deviation are greater than the aperture and the deviation of tube sheet plate hole.
The operation principle of managing outer porous surface high flux heat exchange of heat pipe is following:
The utility model heat exchanger is to manage outer porous surface high flux heat exchanger tube as main heat transfer element; When liquid seethes with excitement outside heat exchanger tube; Its porous surface metal can form various can the nucleateboiling center that exists steady in a long-term, make liquid-retentive at the nucleateboiling state.Liquid is heated around the form with thin liquid film in micropore, and rapid swelling fracture behind the gas heating breaks away from boiling surface in the bubble.This moment, liquid constantly was inhaled into micropore by surface tension effects, and in the hole, was heated, evaporates.Heat medium was water vapour condensation or big flow hot water in this enhanced heat exchange device was used for managing more; And the outer medium of pipe is the operating mode of organic matter boiling; The heat transfer efficiency of water vapour condensation is higher in the pipe; Strengthen organic boiling heat transfer through managing outer porous surface, thereby improve total heat transfer efficiency of heat exchanger.
The porous surface metal average pore size is less, is difficult for being stopped up by dirt; In heat transfer process, constantly produce a large amount of bubbles, bubble is greatly to a certain degree just can breaking away from the surface, but nuclei of bubbles also is present in the hole; Also can form new bubble; Therefore, the heat exchanger tube surface can keep lower temperature all the time, can prevent the fouling that hot spot causes; The porous layer surface has the capillary characteristic, can guarantee that the heat exchanger tube surface in heat exchanger when work is enough moistening, can prevent to do because of the part on heat pipe surface and cause fouling, thereby prolong the life cycle of whole heat exchanger.
The advantage of managing outer porous surface high flux heat exchanger is: total heat transfer efficiency is high, can reach 1.3～3 times of light pipe heat transfer element heat exchanger; Heat transfer temperature difference is little, reaches the required temperature difference of boiling and is merely 0.6～1 ℃; Critical heat flux is high, is 1.8～2 times of light pipe heat transfer element heat exchanger.Heat exchanger tube is less scaling, and the heat exchanger life cycle is long.
Description of drawings
Fig. 1 is the outer porous surface high flux heat exchange of heat pipe sketch map of pipe.
Fig. 2 is the outer porous surface high pass heat exchanger tube sketch map of the main heat transfer element pipe of heat exchanger.
Fig. 3 is the sketch map of gripper shoe plate hole protection ring.
The specific embodiment
Embodiment 1:
With reference to Fig. 1 and 2 the embodiment 1 of the utility model is further specified:
Porous surface high flux heat exchanger tube 1 outside the pipe is set in heat exchanger, is provided with the porous surface metal functional layer 2 of enhanced boiling heat transfer on high flux heat exchanger tube 1 surface.High flux heat exchanger tube 1 is passed from gripper shoe 3 plate holes and is fixed in tube sheet 4 plate holes at two ends.
For in the pipe being condensation of 0.5Mpa saturated vapor and the outer operating mode of pipe for the boiling of 2.1Mpa propane propylene mixtures; Can adopt heat exchanger tube parent tube diameter is the main heat transfer element of outer porous surface high flux heat exchanger tube 1 conduct of pipe of Φ 25, and the overall structure of heat exchanger adopts BJS movable tube sheets heat exchanger form.Because of heat exchange pipe external surface increases certain thickness porous functional layer 2; So; The aperture of tube sheet 4 and deviation are made as
according to GB151 and the aperture and the deviation of gripper shoe 3 are made as
aperture and deviation greater than tube sheet 4, with guarantee high flux heat exchanger tube 1 smoothly poling support with appropriate.The intensity weldering is adopted in being connected of high flux heat exchanger tube 1 and tube sheet 4.
Embodiment 2:
Embodiment with reference to Fig. 1,2 and 3 pairs of the utility model further specifies:
Porous surface high flux heat exchanger tube 1 outside the pipe is set in heat exchanger, is provided with the porous surface metal functional layer 2 of enhanced boiling heat transfer on high flux heat exchanger tube 1 surface.High flux heat exchanger tube 1 is passed from the protection ring 5 that is arranged on gripper shoe 3 plate holes and is fixed in tube sheet 4 plate holes at two ends.
For in the pipe be 1Mpa, 80 ℃ low-temperature water heating and pipe outer be the operating mode that 2.1Mpa propane propylene mixtures is seethed with excitement; Can adopt heat exchanger tube parent tube diameter is the main heat transfer element of outer porous surface high flux heat exchanger tube 1 conduct of pipe of Φ 19, and the overall structure of heat exchanger adopts AXS movable tube sheets heat exchanger form.Because of heat exchange pipe external surface increases certain thickness porous functional layer 2; So; The aperture of tube sheet 4 and deviation are made as
is provided with Φ 22 * 0.5 in the plate hole of gripper shoe 3 stainless steel protection ring 5 according to GB151; Form and gripper shoe 3 with the two sides flange are fixed together, and when passing gripper shoe 3, damage porous functional layer 2 to prevent high flux heat exchanger tube 1.The intensity weldering is adopted in being connected of high flux heat exchanger tube 1 and tube sheet 4.
Claims (3)
1. the outer porous surface high flux heat exchanger of a pipe; It is characterized in that: in heat exchanger, be provided with porous surface high flux heat exchanger tube (1) outside the pipe; Heat exchanger tube (1) surface is provided with the porous surface metal functional layer (2) of enhanced boiling heat transfer, and high flux heat exchanger tube (1) passes and is fixed in from gripper shoe (3) plate hole in tube sheet (4) plate hole at two ends.
2. the outer porous surface high flux heat exchanger of pipe as claimed in claim 1 is characterized in that aperture and the deviation of gripper shoe (3) plate hole aperture and the deviation greater than tube sheet (4) plate hole.
3. the outer porous surface high flux heat exchanger of pipe as claimed in claim 1 is characterized in that in gripper shoe (3) plate hole, can being provided with protection ring (5), and the aperture of protection ring (5) and deviation are greater than the aperture and the deviation of tube sheet (4) plate hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519702U CN202511660U (en) | 2011-12-26 | 2011-12-26 | High-flux heat exchanger with porous surface outside pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519702U CN202511660U (en) | 2011-12-26 | 2011-12-26 | High-flux heat exchanger with porous surface outside pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202511660U true CN202511660U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205519702U Expired - Fee Related CN202511660U (en) | 2011-12-26 | 2011-12-26 | High-flux heat exchanger with porous surface outside pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202511660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743089A (en) * | 2014-01-20 | 2014-04-23 | 华能无锡电热器材有限公司 | Efficient heating device |
| CN105180686A (en) * | 2015-10-10 | 2015-12-23 | 南方风机股份有限公司 | Finned nuclear-grade heat exchanger high in seismic resistance and corrosion resistance |
| CN111059927A (en) * | 2020-01-02 | 2020-04-24 | 沈阳工程学院 | Baffle-free heat exchanger with aluminum porous surface and oval spiral flat tubes |
-
2011
- 2011-12-26 CN CN2011205519702U patent/CN202511660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743089A (en) * | 2014-01-20 | 2014-04-23 | 华能无锡电热器材有限公司 | Efficient heating device |
| CN105180686A (en) * | 2015-10-10 | 2015-12-23 | 南方风机股份有限公司 | Finned nuclear-grade heat exchanger high in seismic resistance and corrosion resistance |
| CN111059927A (en) * | 2020-01-02 | 2020-04-24 | 沈阳工程学院 | Baffle-free heat exchanger with aluminum porous surface and oval spiral flat tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 102200, room 2097, block B, No. 9, front road, Changping District science and Technology Park, Beijing Patentee after: BEIJING GUANGSHA HUANNENG SCIENCE & TECHNOLOGY CO., LTD. Address before: 100081, Huaqing Executive Hotel, Zhongguancun East Road, Beijing, Haidian District 601 Patentee before: Beijing GroundSun Science & Technology Company Limited |
|
| 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: 20121031 Termination date: 20201226 |