CN106985637A - A kind of automobile air-conditioning refrigeration equipment - Google Patents
A kind of automobile air-conditioning refrigeration equipment Download PDFInfo
- Publication number
- CN106985637A CN106985637A CN201710174642.7A CN201710174642A CN106985637A CN 106985637 A CN106985637 A CN 106985637A CN 201710174642 A CN201710174642 A CN 201710174642A CN 106985637 A CN106985637 A CN 106985637A
- Authority
- CN
- China
- Prior art keywords
- pipe
- refrigeration equipment
- automobile air
- chamber
- 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.)
- Granted
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 16
- 238000004378 air conditioning Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 239000003507 refrigerant Substances 0.000 claims description 49
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 24
- 239000012071 phase Substances 0.000 description 19
- 239000007791 liquid phase Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 238000000926 separation method Methods 0.000 description 11
- 239000012808 vapor phase Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 206010068052 Mosaicism Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3202—Cooling devices using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3286—Constructional features
- B60H2001/3289—Additional cooling source
Abstract
A kind of automobile air-conditioning refrigeration equipment, it includes evaporator, and evaporator includes a distribution pipe, a collector tube and some micro-channel flats, wherein：Collector tube is placed in parallel with distribution pipe；Micro-channel flat is assembled between described collector tube and distribution pipe, and the fin for radiating is provided between adjacent flat tube；The fin being provided between the microchannel of multiple confession flow of fluid, adjacent flat tube for radiating is provided with flat tube, it is characterised in that：Fin surface has the radiating of array arrangement raised, and described raised including tilting section, segmental arc, along air-flow direction, tilting section is located at upstream；Spacing X, projection length Y, and X=(0.35 0.5) Y between each projection.
Description
Technical field
The present invention relates to a kind of device of automobile air-conditioning refrigeration technical field, specifically a kind of automobile air-conditioning refrigeration is set
It is standby.
Background technology
Microchannel is widely used in refrigerating field, is especially used in air conditioning for automobiles.Evaporated with traditional pipe type
Device is compared, and micro-channel evaporator has the coefficient of heat transfer high, small volume, lightweight, and refrigerant charge is few to be substantially reduced with cost
Etc. advantage.But, micro-channel evaporator has the evenly distributed sex chromosome mosaicism of two phase refrigerant.It is in particular in：Micro-channel flat
Outlet superheat degree skewness, the flow and mass dryness fraction of the refrigerant being assigned in each road flat tube have larger difference, such as one
Part micro-channel flat exit refrigerant superheat degree is higher, relative, and a part of flat tube exit even also exists not complete
The liquid refrigerant vaporized entirely, fails to make full use of the latent heat of phase change of liquid refrigerant, causes the heat exchange property of whole evaporator
Decline.
Domestic and foreign scholars have done many researchs to the uneven problem of micro-channel evaporator point liquid, but most of assignment of traffic skills
Art is based primarily upon the uniformity adjustment to refrigerant flow in flat tube, rather than two phase refrigerant mass dryness fraction is adjusted.Then, nothing
By how evaporation structure and size being designed and being optimized, entrance mass dryness fraction, flow can not be all avoided to freezing in evaporator
The restriction that agent flux is evenly distributed；And in actual product application, the control of assignment of traffic needs to carry out multiple experiment tune
It is whole, it evaporator is obtained ideal heat transfer effect.
In the prior art, there is a size by adjusting punching hole corresponding to flat tube, balance each road flat tube pressure drop and reached point
The uniform purpose of liquid, but do not solve fundamentally to enter influence of the evaporator refrigerant mass dryness fraction to assignment of traffic.Also there is compression
The condensed device of high temperature and high pressure gas of machine discharge is condensed into highly pressurised liquid, and the flash gas after throttling is utilized subsequently into regenerator
Supercooling, two phase refrigerant separates gaseous refrigerant in gas-liquid separator, is passed into the heat that highly pressurised liquid is absorbed in regenerator
Measure and reach superheat state；The distribution of gas-liquid two-phase cold-producing medium is converted into the distribution of liquid phase refrigerant by the method, improve
Point liquid uneven phenomenon and the heat exchange efficiency for improving evaporator, but with the addition of middle regenerator, gas-liquid separator in system
With some complex pipelines, evaporating pressure is reduced, the characteristics of also can not matching micro-channel evaporator performance efficiency, compact conformation.
The content of the invention
It is used for automobile air-conditioning refrigeration equipment in view of the deficiencies of the prior art, the present invention provides a kind of, it is specially one kind
Micro-channel evaporator, the device significantly improves the problem of distribution of two phase refrigerant flow is uneven, while reducing evaporator
Pressure drop, the lifting of evaporator heat exchange performance is realized on the premise of in compact conformation.
The present invention is achieved by the following technical solutions, and the present invention includes：
Evaporator, including a distribution pipe and a collector tube；Restricting orifice, is divided into first chamber and second by distribution pipe
Chamber；The micro-channel flat of some uniform parallel arrangements is assembled between distribution pipe and collector tube, is set between adjacent flat tube
There is the fin for radiating.Most of flat tube is connected with first chamber, and finally flat tube is connected with second chamber all the way；One
Small-sized gas-liquid separation pipe is assembled in inside distribution pipe, into two phase refrigerant gas-liquid separation in separating pipe of evaporator.
Described separating pipe be cylindrical shape, one end with distribute tube inlet be connected, the other end be connected with restricting orifice and
If wall is provided with dry passage so that liquid phase refrigerant flows into first chamber in separating pipe side.Separation tube hub assembly has spiral board, two
Phase refrigerant carries out gas-liquid separation by the effect of centrifugal force.
Described restricting orifice center is provided with through hole, and orifice center aligns with separating tube hub, and itself can be with
Play a part of equilibrium pressure drop；Through hole is bellmouth, it is therefore an objective to hinders liquid phase refrigerant to flow into second chamber and guides liquid phase
Refrigerant flow direction separates tube wall, to ensure separating effect.
A kind of method of described separation gas-liquid two-phase cold-producing medium, wherein：
When two phase refrigerant flows into a point separating pipe, it is circulation that it, which manages interior fluidised form,.Spiral board screw type runner provide from
Under mental power function, liquid phase refrigerant flow direction separation inside pipe wall simultaneously flows into first chamber by the passage of separating pipe side wall, finally quilt
It is uniformly distributed in most of flat tube；Vapor phase refrigerant then rises along the spiral board for being located at separation tube hub, passes through through hole
It is flowed into second chamber and along finally flat tube flows into collector tube all the way.
After refrigeration system starts, the two phase refrigerant by throttling enters distribution pipe, the liquid phase refrigeration that gas-liquid separation goes out
Agent is evenly distributed in most of flat tube, wherein fluid interchange, to reach the effect of refrigeration.Due to entering in flat tube
Refrigerant is single liquid phase refrigerant, it is to avoid in collector two phase flow pressure field distribution it is uneven caused by refrigerant point liquid it is uneven
Phenomenon so that assignment of traffic is uniform in each flat tube.
The distribution pipe of the present invention is built-in to be embedded with separating pipe and restricting orifice, makes two phase refrigerant gas-liquid point by separating pipe
From restricting orifice control vapor phase refrigerant bypass, the design can solve shadow of the mass dryness fraction to flow distribution of refrigerant uniformity significantly
Ring, while reducing the pressure drop of evaporator, the lifting of evaporator heat exchange performance is realized on the premise of compact conformation.
Brief description of the drawings
Fig. 1 is the schematic arrangement schematic diagram of the evaporator of embodiment one.
Fig. 2 is concrete structure schematic diagram in the distribution pipe of embodiment one
Fig. 3 is fin surface bulge-structure
Fig. 4 is open-celled structure on spiral board
Fig. 5 is restricting orifice portion structure
Embodiment
Now, embodiments of the invention are will be described in detail, the example of these embodiments is shown in the drawings.However, this
Invention can be embodied as multiple different forms, and should not be construed as being limited to embodiments set forth herein.
Embodiment 1, referring to accompanying drawing 1-5：
As shown in figure 1, the invention provides a kind of evaporator, including：A piece distribution pipe 1, a collector tube 2 and some micro-
Passage flat tube 3, wherein：Described distribution pipe 1 and collector tube 2 is placed in parallel vertical and separated by a distancely, some uniform flat
The micro-channel flat 3 of row arrangement is assembled between distribution pipe 1 and collector tube 2.The two ends of every flat tube 3 respectively with distribution pipe 1 with
Collector tube 2 is connected, and is uniformly distributed the microchannel flowed for refrigerant, the hydraulic radius of microchannel in flat tube provided with several
For 0.5mm.The fin 6 for radiating is provided between adjacent flat tube；Referring to Fig. 3, the surface of fin 6 has the radiating of array arrangement
Projection, the projection includes tilting section 21, segmental arc 22, and along air-flow direction, tilting section 21 is located at upstream, tilting section 21 and wing
The angle on the surface of piece 6 is 30-40 °；Spacing X, projection length Y, and X=0.35-0.45Y between each projection, pass through and study discovery
Configuration can effectively reduce turbulent flow, backflow under the ratio, so as to increase the radiating effect of air flow.Lead between fin 6 and flat tube 3
Cross heat conductive adhesive connection.
As shown in Fig. 2 described distribution pipe 1 be cylindrical shape, into evaporator two phase refrigerant in distribution pipe it is equal
Each micro-channel flat 3 is assigned to evenly.Distribution pipe 1 is built-in to be embedded with restricting orifice 5 and separating pipe 4, wherein：
Distribution pipe is divided into first chamber 7 and second chamber 8 by described restricting orifice 5.The center of restricting orifice 5 is provided with and passed through
Perforate 9, a diameter of 2-10mm of the through hole, and orifice center aligns with separating tube hub, and itself can play Balance Air
Body runner and the effect of flow channel for liquids pressure drop；Through hole 9 is bellmouth, arc transition between bellmouth and restricting orifice 5, purpose
It is to hinder liquid phase refrigerant to flow into second chamber 8 and guide liquid phase refrigerant to flow to separating pipe side wall 10, to ensure separating effect.
Described separating pipe 4 is cylindrical shape, and one end is connected with distribution tube inlet 17, and the other end is connected with restricting orifice 5
It is logical, and if being provided with dry passage 19 on separating pipe side wall 10 so that liquid phase refrigerant flows into first chamber 7.The center of separating pipe 4 is filled
Spiral board 11 is embedded with, two phase refrigerant carries out gas-liquid separation by the effect of centrifugal force.
Described collector tube 2 is cylindrical shape, and the flash gas of bypass and the vapor phase refrigerant of heat exchange vaporization are in collector tube 2
Converge and flow out evaporator in the lump.
One end 14 of described micro-channel flat 3 is inserted into distribution pipe 1, most of first flat tube 12 and the phase of first chamber 7
Connection, finally the second flat tube 13 is connected with second chamber 8 all the way.
The other end 15 of described micro-channel flat 3 is inserted into collector tube 2, and all flat tubes are connected with collector tube chamber 16
It is logical.
Referring to Fig. 4, spiral board 11 is spiral vane formula structure, and the blade surface in the range of each 1/2P pitch is set
There are multiple perforates, such as three, radially inner side 2, radial outside 1,23 be the axis of spiral board 11, and 24 be bore axis, and is opened
Hole is conical through-hole, and along refrigerant flow direction (referring to Fig. 2, from bottom to top), bellmouth bottom is big, top is small, and opening axis
It is 40-45 ° that line is preferably angle with eddy flow plate axis.Along refrigerant flow direction, radial direction of the perforate from the axis of spiral board 11
Distance is tapered into, and this configuration can effectively crush, separate bubble, gain separating effect.
Referring to Fig. 5, the diameter K of spiral board 11 is more than the lower diameter H of through hole 9, to ensure efficiently separating for gas-liquid.Point
There is conical opening 25 from the top of tube wall 10, the position of conical opening 25 is located under the bottom of through hole 9, the top of spiral board 11 it
On.Multiple water conservancy diversion uniform blades 26 are evenly equipped with the inwall of through hole 9, the water conservancy diversion uniform blade 26 is in inverted trapezoidal, can be effectively to gas
Phase refrigerant carries out water conservancy diversion, the fluidized―bed furnace of homogenous gas-phase refrigerant.
When refrigeration system works, the gas-liquid two-phase cold-producing medium produced after expanded valve throttling enters evaporator.Two-phase is freezed
Agent flows into separating pipe 4 from distribution tube inlet 17, and it is circulation that it, which manages interior fluidised form,.The centrifugal force provided in the screw type runner of spiral board 11
Under effect, the radius of turn of liquid phase refrigerant is much bigger compared to vapor phase refrigerant.Vapor phase refrigerant is along positioned at the center of separating pipe 4
Spiral board 11 rise；Liquid phase refrigerant is then inclined to separating pipe side wall 10 and flows into first chamber by the passage 19 of side wall, from
And realize gas-liquid separation.Second chamber 8 is flowed into and along finally flat tube 13 flows into collection all the way by the vapor phase refrigerant of through hole 5
Liquid pipe 2；Liquid phase refrigerant is evenly distributed most of flat tube 12 and fluid interchange wherein in first chamber 7, vaporization
Collector tube 2 is flowed into afterwards.Two strands of gases flow out after converging in collector tube 2 from collector tube outlet 18.
The design that distribution pipe of the present invention embeds restricting orifice and separating pipe is obtained by bypassing vapor phase refrigerant
Good flow distribution of refrigerant effect, is improved greatly the heat exchange property of evaporator on the premise of compact conformation.
In embodiments of the invention, as needed and actual conditions can suitably adjust the position of separating pipe and restricting orifice, to ensure
Gas-liquid separation effect.The quantity of gas circuit flat tube and fluid path flat tube is can adjust simultaneously, with equilibrium pressure drop and refrigerant flow.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in
Within protection scope of the present invention.
Claims (6)
1. a kind of automobile air-conditioning refrigeration equipment, it includes evaporator, it is characterised in that：Evaporator includes distribution pipe, collector tube, flat
Pipe, fin, are provided with micro- provided with multiple confession flow of fluid in multiple flat tubes arranged in parallel, flat tube between distribution pipe and collector tube
The fin for radiating is provided between passage, adjacent flat tube, fin surface has the radiating of array arrangement raised, described convex
Rising includes tilting section, segmental arc, and along air-flow direction, tilting section is located at upstream；Spacing X, projection length Y between each projection,
And X=(0.35-0.5) Y.
2. automobile air-conditioning refrigeration equipment according to claim 1, it is characterised in that restricting orifice is provided with distribution pipe, is divided
From pipe, distribution pipe is divided into first chamber and second chamber by restricting orifice；Multiple first flat tubes are connected with first chamber, one
Second flat tube is connected with second chamber；Separating pipe is circumferentially with multiple passages, for being connected with first chamber, separating pipe
Axially open is connected with the through hole of restricting orifice.
3. automobile air-conditioning refrigeration equipment according to claim 2, it is characterised in that pass through thermal conductivity between fin and flat tube
Adhesive is connected.
4. automobile air-conditioning refrigeration equipment according to claim 2, it is characterised in that spiral board is provided with separating pipe, described
Spiral board is spiral vane formula structure, and the blade surface in the range of each 1/2 pitch P is provided with multiple perforates.
5. automobile air-conditioning refrigeration equipment according to claim 4, it is characterised in that the perforate is bellmouth, opening axis
Line is set with the inclined angle of eddy flow plate axis.
6. automobile air-conditioning refrigeration equipment according to claim 4, it is characterised in that along refrigerant flow direction, perforate from
The radial distance of eddy flow plate axis is tapered into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174642.7A CN106985637B (en) | 2017-03-22 | 2017-03-22 | A kind of automobile air-conditioning refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174642.7A CN106985637B (en) | 2017-03-22 | 2017-03-22 | A kind of automobile air-conditioning refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106985637A true CN106985637A (en) | 2017-07-28 |
| CN106985637B CN106985637B (en) | 2019-07-26 |
Family
ID=59412157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710174642.7A Active CN106985637B (en) | 2017-03-22 | 2017-03-22 | A kind of automobile air-conditioning refrigeration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN106985637B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017599A (en) * | 2019-05-10 | 2019-07-16 | 四川省机械研究设计院 | It is a kind of can quickly heat supply Double energy source water heater |
| CN113306476A (en) * | 2021-07-29 | 2021-08-27 | 招远华丰机械设备有限公司 | Special chassis for underground diesel engine trackless blasting equipment carrier vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS563895A (en) * | 1979-06-20 | 1981-01-16 | Hitachi Ltd | Heater core |
| JPS6314092A (en) * | 1986-07-03 | 1988-01-21 | Nippon Denso Co Ltd | Heat exchanger |
| EP1164345A4 (en) * | 1999-12-14 | 2006-04-26 | Denso Corp | Heat exchanger |
| CN101568792A (en) * | 2006-11-13 | 2009-10-28 | 开利公司 | Minichannel heat exchanger header insert for distribution |
| CN104422201A (en) * | 2013-08-27 | 2015-03-18 | 浙江盾安热工科技有限公司 | Gas-liquid separation type evaporator |
-
2017
- 2017-03-22 CN CN201710174642.7A patent/CN106985637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS563895A (en) * | 1979-06-20 | 1981-01-16 | Hitachi Ltd | Heater core |
| JPS6314092A (en) * | 1986-07-03 | 1988-01-21 | Nippon Denso Co Ltd | Heat exchanger |
| EP1164345A4 (en) * | 1999-12-14 | 2006-04-26 | Denso Corp | Heat exchanger |
| CN101568792A (en) * | 2006-11-13 | 2009-10-28 | 开利公司 | Minichannel heat exchanger header insert for distribution |
| CN104422201A (en) * | 2013-08-27 | 2015-03-18 | 浙江盾安热工科技有限公司 | Gas-liquid separation type evaporator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017599A (en) * | 2019-05-10 | 2019-07-16 | 四川省机械研究设计院 | It is a kind of can quickly heat supply Double energy source water heater |
| CN110017599B (en) * | 2019-05-10 | 2024-01-23 | 四川省机械研究设计院(集团)有限公司 | Dual-energy water heater capable of rapidly supplying heat |
| CN113306476A (en) * | 2021-07-29 | 2021-08-27 | 招远华丰机械设备有限公司 | Special chassis for underground diesel engine trackless blasting equipment carrier vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106985637B (en) | 2019-07-26 |
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Effective date of registration: 20190517 Address after: 400000 2-2-1-61 319 Haier Road, Jiangbei District, Chongqing. Applicant after: Chongqing Steady Technology Co.,Ltd. Address before: 213300 Room 301, Block C, 168 Wushen Road, Liyang City, Changzhou City, Jiangsu Province Applicant before: LIYANG YINGCHUANG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20190625 Address after: 545000 No. 8 Xinyue Road, Liuzhou City, Guangxi Zhuang Autonomous Region Applicant after: GUANGXI YIDE TECHNOLOGY CO.,LTD. Address before: 400000 2-2-1-61 319 Haier Road, Jiangbei District, Chongqing. Applicant before: Chongqing Steady Technology Co.,Ltd. |
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Denomination of invention: A kind of automobile air conditioning refrigeration equipment Effective date of registration: 20221215 Granted publication date: 20190726 Pledgee: China Construction Bank Corporation Liuzhou Branch Pledgor: GUANGXI YIDE TECHNOLOGY CO.,LTD. Registration number: Y2022450000232 |
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Date of cancellation: 20231222 Granted publication date: 20190726 Pledgee: China Construction Bank Corporation Liuzhou Branch Pledgor: GUANGXI YIDE TECHNOLOGY CO.,LTD. Registration number: Y2022450000232 |