CN208124953U - A kind of micro-channel tubes of micro-channel heat exchanger - Google Patents
A kind of micro-channel tubes of micro-channel heat exchanger Download PDFInfo
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- CN208124953U CN208124953U CN201820317853.1U CN201820317853U CN208124953U CN 208124953 U CN208124953 U CN 208124953U CN 201820317853 U CN201820317853 U CN 201820317853U CN 208124953 U CN208124953 U CN 208124953U
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Abstract
The utility model relates to field of heat exchangers, more particularly to a kind of micro-channel tubes of micro-channel heat exchanger, it is characterized in that, the micro-channel tubes are the tube body of perforation, the micro-channel tubes are whole to be arranged successively by straight-run of pipe, one section of spherical lumen that expands, which has at least one microchannel flowed for refrigerant.The purpose of this utility model is to provide a kind of micro-channel tubes of micro-channel heat exchanger, to promote heat exchange effect.
Description
Technical field
The utility model relates to field of heat exchangers, and in particular to a kind of micro-channel tubes of micro-channel heat exchanger.
Background technique
Existing coil pipe generally uses copper pipe string ripple or item to stitch aluminium flake and is made, general copper pipe outer diameter 10mm, tube wall
Thick 0.35mm, aluminium flake 0.12~0.15mm of thickness, 2~2.3mm of a pitch of fins use tube process in technique, guarantee copper pipe and aluminium rib
It is in close contact between piece, improves heating conduction, the number of rows of coil pipe is generally two rows or three rows.
Patent document CN10706225A discloses a kind of such micro-channel heat exchanger, as shown in Figure 1, a kind of microchannel
Heat exchanger includes two headers being vertically arranged 3, and multiple horizontally disposed flat tubes 2 are fixedly connected between two headers 3,
The shape of flat tube 2 is as shown in Fig. 2, be provided with a plurality of microchannel 22 in flat tube 2；As shown in Fig. 2, between two adjacent flat tubes 2
It is provided with fin 1, fin 1 is extended in the form of wave between flat tube 2, i.e., the described fin 1 is successively in the form of wave crest and trough
Occur.
Such micro-channel heat exchanger is used as evaporator, it may appear that the problem of condensate water discharging difficulty；Condensed water mainly gathers
Collection between corrugated fin and flat tube, is not easy to be discharged between corrugated fin.In addition, air inlet is parallel through micro-channel flat, it is flat
Among the pipe and microchannel in wind direction downstream and the heat exchange of air are undesirable.Patent document CN104677164A does problem above
It improves, the fin of setting wave-shaped between two flat tubes is removed, as shown in figure 3, being provided with and this in microchannel peripheral side
The integrally formed spiral heat exchange fin of body；Without additional heat exchange fin and micro-channel tubes body contacts, and more microchannels
The arrangement of pipe is free, can be with cross arrangement, to improve the heat exchange efficiency of heel row microchannel.
A kind of such micro-channel heat exchanger heat exchanging fin improves, and has been allowed to heat exchange efficiency and drainage effect all
Improve；But still it has the following problems：1, many places angle is formed between heat exchange fin and microchannel, these angles are in humidity
Environment in easily adsorb minute dust in air, form collection dirt, and then influence heat exchange efficiency；2, the collection that minute dust is formed
Dirt harmful bacteria easy to breed, after being taken out of by wind, sucking body effect's health；3, it is meticulous to be such as arranged by the channel of microchannel,
Raising heat exchanging efficiency, but blocking is easily caused, such as it was arranged slightly, fluid directly flows through, and reduces heat exchanger effectiveness.
Summary of the invention
Therefore, the utility model is exactly made in view of problem above；The purpose of this utility model is to provide one kind
The micro-channel tubes of micro-channel heat exchanger to promote heat exchange effect, and solve the problems, such as to breed harmful bacteria.
For a kind of micro-channel tubes of micro-channel heat exchanger of the realization purpose, the micro-channel tubes are the tube body of perforation,
The micro-channel tubes are whole to be arranged successively by straight-run of pipe, one section of spherical lumen that expands, and the tube body is at least one for system
The microchannel of cryogen flowing.
Further, the spherical lumen length that expands of the micro-channel tubes is greater than length of straight pipe；
Further, the spherical expansion lumen length is twice of length of straight pipe；
Further, the lateral surface of the micro-channel tubes is smooth face.
Further, since micro-channel tubes are that straight-run of pipe, one section of spherical lumen that expands are arranged successively, so that micro- logical
Deferent is formed as the microchannel of regular expansion and diminution caliber, passes through change of the refrigerant fluid by caliber of microchannel
Change, forms regular pressurization and discharge process and regular acceleration and moderating process, this process flow through microchannel
The flow velocity of refrigerant fluid constantly changes with flow direction, and then forms turbulent flow by laminar flow, so that heat exchange efficiency is promoted.
Further, the caliber change of the micro-channel tubes passes through the regular increasing of refrigerant fluid of microchannel
The turbulent flow for pressing speedup and discharge to slow down and then formed makes refrigerant fluid form shearing force to micro-channel tubes inner wall, and then is formed
Souring effectively prevents micro-channel tubes inner wall and generates fouling and blockage phenomenon.
Further, in the technical scheme, the micro-channel tubes realize heat exchange area using the variation of its own tube body
Increase, increase heat exchange area without the extension of additional heat exchange fin or pipe peripheral side, avoid to form thermal contact resistance.
Further, the spherical micro-channel tubes for expanding lumen and straight tube and being formed, peripheral side be smooth arc surface and
Spherical surface no longer generates excessive angle, dead angle, solves because of angle, the absorption of dead angle reason bring minute dust, accumulation, in turn
The problem of influencing heat exchanger effectiveness problem, and breeding harmful bacteria.
Beneficial effect
1, the flow velocity and flow direction in the technical scheme, flowing through the refrigerant fluid of microchannel constantly change, in turn
Turbulent flow is formed by laminar flow, so that heat exchange efficiency is promoted.
2, in the technical scheme, laminar flow becomes turbulent flow, and refrigerant fluid is made to form shearing force to micro-channel tubes inner wall, into
And souring is formed, it effectively prevents micro-channel tubes inner wall and generates fouling and blockage phenomenon.
3, in the technical scheme, micro-channel tubes realize the increase of heat exchange area using the variation of its own tube body, are not necessarily to
The extension of additional heat exchange fin or pipe peripheral side increases heat exchange area, avoids to form thermal contact resistance.
4, in the technical scheme, the spherical micro-channel tubes for expanding lumen and straight tube and being formed, peripheral side is smooth circular arc
Face and spherical surface no longer generate excessive angle, dead angle, solve because of angle, the absorption of dead angle reason bring minute dust, accumulation,
And then heat exchanger effectiveness problem is influenced, and the problem of growth harmful bacteria.
Detailed description of the invention
Fig. 1 is a kind of micro-channel heat exchanger structural schematic diagram disclosed in patent document CN10706225A.
Fig. 2 is a kind of micro-channel tubes structural schematic diagram disclosed in patent document CN10706225A.
Fig. 3 is a kind of micro-channel tubes structural schematic diagram disclosed in patent document CN104677164A.
Fig. 4 is the technical program micro-channel tubes structural schematic diagram.
Fig. 5 is the technical program micro-channel tubes the schematic diagram of the section structure.
Specific embodiment
The invention will be further described with attached drawing combined with specific embodiments below, elaborates in the following description more
Details to facilitate a thorough understanding of the present invention, still the present invention obviously can be come with a variety of other modes different from this description it is real
Apply, those skilled in the art can without violating the connotation of the present invention according to practical situations make similar popularization,
It deduces, therefore should not be limited the scope of the invention with the content of this specific embodiment.
As shown in Figure 4, Figure 5, the micro-channel tubes of a kind of micro-channel heat exchanger, characterized in that the micro-channel tubes are
The tube body of perforation, the micro-channel tubes are whole to be arranged successively by 41, one sections of the straight-run of pipe spherical lumens 42 that expand, tube body tool
There is at least one microchannel 43 flowed for refrigerant.
Further, spherical 42 length of lumen that expands of the micro-channel tubes is greater than 41 length of straight tube；
Further, spherical expansion 42 length of lumen is twice of 41 length of straight tube；
Further, the lateral surface of the micro-channel tubes is smooth face.
Further, since micro-channel tubes are that the spherical lumens 42 that expand of 41, one sections of straight-run of pipe are arranged successively, so that
Micro-channel tubes are formed as the microchannel 43 of regular expansion and diminution caliber, pass through the refrigerant fluid of microchannel 43 by
The variation of caliber, forms regular pressurization and discharge process and regular acceleration and moderating process, this process flow through
The flow velocity of the refrigerant fluid of microchannel 43 constantly changes with flow direction, and then forms turbulent flow by laminar flow, so that heat exchange efficiency
It is promoted.
Further, the caliber change of the micro-channel tubes, the refrigerant fluid for passing through microchannel 43 are regular
The turbulent flow that booster and speed-increasing and discharge slow down and then formed, turbulent flow forms shearing force to micro-channel tubes inner wall, and then is formed and wash away work
With effectively preventing micro-channel tubes inner wall and generate fouling and blockage phenomenon.
Further, in the technical scheme, the micro-channel tubes realize heat exchange area using the variation of its own tube body
Increase, increase heat exchange area without the extension of additional heat exchange fin or pipe peripheral side, avoid to form thermal contact resistance.
Further, the spherical micro-channel tubes for expanding lumen 42 and straight tube 41 and being formed, peripheral side is smooth circular arc
Face and spherical surface no longer generate excessive angle, dead angle, solve because of angle, the absorption of dead angle reason bring minute dust, accumulation,
And then heat exchanger effectiveness problem is influenced, and the problem of growth harmful bacteria.
Claims (4)
1. a kind of micro-channel tubes of micro-channel heat exchanger, it is characterised in that：The micro-channel tubes are the tube body of perforation, the microchannel
Pipe is whole to be arranged successively by straight-run of pipe, one section of spherical lumen that expands, which has at least one to flow for refrigerant
Microchannel；The spherical lumen length that expands of the micro-channel tubes is greater than length of straight pipe；The spherical lumen length that expands is straight
Twice of length of tube.
2. a kind of micro-channel tubes of micro-channel heat exchanger according to claim 1, it is characterised in that：The micro-channel tubes
Lateral surface is smooth face.
3. a kind of micro-channel tubes of micro-channel heat exchanger according to claim 2, it is characterised in that：The micro-channel tubes are
Straight-run of pipe, one section of spherical lumen that expands are arranged successively, so that micro-channel tubes are formed as regular expansion and diminution pipe
The runner of diameter.
4. a kind of micro-channel tubes of micro-channel heat exchanger according to claim 3, it is characterised in that：The micro-channel tubes benefit
The increase of heat exchange area is realized with the variation of its own tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317853.1U CN208124953U (en) | 2018-03-08 | 2018-03-08 | A kind of micro-channel tubes of micro-channel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317853.1U CN208124953U (en) | 2018-03-08 | 2018-03-08 | A kind of micro-channel tubes of micro-channel heat exchanger |
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| Publication Number | Publication Date |
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| CN208124953U true CN208124953U (en) | 2018-11-20 |
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| CN201820317853.1U Active CN208124953U (en) | 2018-03-08 | 2018-03-08 | A kind of micro-channel tubes of micro-channel heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118224423A (en) * | 2024-05-23 | 2024-06-21 | 南昌航空大学 | A 3D secondary flow structure |
-
2018
- 2018-03-08 CN CN201820317853.1U patent/CN208124953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118224423A (en) * | 2024-05-23 | 2024-06-21 | 南昌航空大学 | A 3D secondary flow structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253308 west of Tengyun street, Lu Quan Tun Town, Wucheng County, Dezhou, Shandong Patentee after: Changxing Group Co.,Ltd. Address before: 253308 west of Tengyun street, Lu Quan Tun Town, Wucheng County, Dezhou, Shandong Patentee before: DEZHOU CHANG XING GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Microchannel tube of a microchannel heat exchanger Effective date of registration: 20210608 Granted publication date: 20181120 Pledgee: Shandong Wucheng Rural Commercial Bank Co.,Ltd. Pledgor: Changxing Group Co.,Ltd. Registration number: Y2021980004510 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220531 Granted publication date: 20181120 Pledgee: Shandong Wucheng Rural Commercial Bank Co.,Ltd. Pledgor: Changxing Group Co.,Ltd. Registration number: Y2021980004510 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |