CN104279798A - Parallel flow condenser and air conditioner with same - Google Patents
Parallel flow condenser and air conditioner with same Download PDFInfo
- Publication number
- CN104279798A CN104279798A CN201310293709.0A CN201310293709A CN104279798A CN 104279798 A CN104279798 A CN 104279798A CN 201310293709 A CN201310293709 A CN 201310293709A CN 104279798 A CN104279798 A CN 104279798A
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- China
- Prior art keywords
- parallel flow
- condenser
- flow condenser
- partition
- small opening
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
- F25B2339/0442—Condensers with an integrated receiver characterised by the mechanical fixation of the receiver to the header
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a parallel flow condenser. Two sides of the condenser are provided with collecting pipes; the collecting pipes are internally provided with multiple spacers used for separating internal runners of the collecting pipes into multiple sub-runner regions; the spacer behind the first sub-runner region is provided with a leak hole. By use of the characteristic that a liquid refrigerant has specific weight greater than that of press machine oil and is collected toward the bottom of the condenser under the action of gravity, each spacer of each collecting pipe of the parallel flow condenser is additionally provided with a flowing hole, and a part of liquid refrigerant and press machine oil can be guided into the rear half part of the condenser, so that the possibility that the liquid refrigerant or press machine oil is attached to the pipe walls of the collecting pipes is reduced, complete direct contact between a gaseous refrigerant and the pipe walls is ensured, and thus the heat exchange efficiency of the middle of the parallel flow condenser is improved. In addition, the invention also provides an air conditioner.
Description
Technical field
The present invention relates to a kind of micro-channel parallel flow heat exchanger of air-conditioner, belong to the improvement opportunity of the micro-channel parallel flow heat exchanger of air-conditioner.
Background technology
At present, the heat exchanger of commercially available air-conditioner generally has two kinds of structures, i.e. fin-tube type heat exchanger and micro-channel parallel flow heat exchanger, because the heat exchange efficiency of micro-channel parallel flow heat exchanger is higher than fin-tube type heat exchanger, thus receive increasing air conditioning system maker attention and by progressively, be widely used in air-conditioning products of new generation.In micro-channel parallel flow condenser, heat exchange has three phases: cooling, condensation, excessively cold, cooling stage is that gaseous refrigerant is from High-temperature cooling to saturation temperature, condensation phase is that cold-producing medium keeps saturation temperature constant, but state is condensed into liquid state gradually from gaseous state, spending the cold stage is that liquid refrigerant is further cooled to lower temperature, wherein condensation phase accounts for the overwhelming majority of condenser, also accounts for the overwhelming majority of whole condenser heat exchange amount.
Existing parallel flow condenser is when carrying out condensation, there is following defect: condensation phase condensation becomes liquid cold-producing medium can form liquid film at header tube wall, gaseous refrigerant directly can not be contacted with tube wall completely, become the unfavorable factor to gaseous refrigerant condenses heat exchange; In addition, when cold-producing medium enters condenser, have press oil and be carried and enter condenser, oil film can be formed at tube wall equally, hinder cold-producing medium to contact with condenser tube wall, be unfavorable for heat exchange.
Summary of the invention
The present invention solves existing parallel flow condenser tube wall easily to be formed liquid film or oil film thus the problem affecting heat exchange efficiency, and propose a kind of parallel flow condenser, its concrete technical scheme is as follows:
A kind of parallel flow condenser, the both sides of this condenser are header, are provided with partition header inner flow passage being separated into multiple runner district in described header, wherein, the partition behind described first runner district have small opening.
Further, the partition between described first runner district and last runner district has small opening.
Conveniently liquid film or oil film spill from small opening smoothly, and described partition edge has arc notch, and described small opening is formed by arc notch and afflux tube wall.
Alternatively, described partition edge has semicircular breach, and described small opening is formed by semicircular breach and afflux tube wall.
Alternatively, described partition has a medial concavity, and described small opening is positioned at the bottom of described recess.
In order to obtain maximum heat exchange efficiency, described small opening aperture is 0.5mm-5mm, is preferably 2mm.
The present invention proposes a kind of air-conditioner being provided with above-mentioned parallel flow condenser in addition.
Compared with prior art, advantage of the present invention and good effect as follows:
The present invention utilize liquid refrigerant and press oil ratio great, gravitate is to the feature of condenser congregate, the partition of collecting tube of parallel flow condenser adds an opening, some liquid refrigerant and press oil are imported condenser latter half of, reduce liquid refrigerant or the oily chance of adhering on header tube wall of press, ensure that gaseous refrigerant directly contacts with tube wall completely, thus improve the heat exchange efficiency in the middle part of parallel flow condenser.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention one parallel flow condenser structural representation;
Fig. 2 is existing parallel flow condenser refrigerant flow path figure;
Fig. 3 is parallel flow condenser refrigerant flow path figure described in Fig. 1;
Fig. 4 is spacer structure side view;
Fig. 5 is the top view of partition shown in Fig. 4;
Fig. 6 is the partition side view be arranged in header;
Fig. 7 is for being arranged on the partition top view in header shown in Fig. 6;
Fig. 8 is embodiment one small opening size and heat exchange efficiency curve map.
Detailed description of the invention
Embodiment one, the present embodiment proposes a kind of parallel flow condenser 1, comprise left side header 1-1, right side header 1-1, be communicated with some refrigerant arm 1-5 of left side header and right side header, refrigerant arm 1-5 is flat tube, there is the runner hole that many axis run through flat tube, left side header 1-1 is provided with gaseous refrigerant inlet pipe 1-3 and gaseous state refrigerant outlet pipe 1-4, partition 1-2 is respectively equipped with in left side header and right side header 1-1, the inner flow passage of each header is separated into multiple runner district, each runner district is communicated with corresponding refrigerant arm, change refrigerant to flow to, thus the flow process of adjustment refrigerant in parallel flow condenser inside.
Number and the arrangement of the partition in each header are determined according to the refrigerant of different conditions, be advisable with 1 ~ 4, inlet tube 1-3 is positioned at the first runner district be separated into by header the top, left side partition 1-2, and outlet 1-4 is positioned at the bottom runner district be separated into by left side header 1-1 bottom partition 1-2.In the present embodiment, in the header 1-1 of left side, partition 1-2 is 2, and be namely positioned at the partition of the top and be positioned at the partition of below, in the header 1-1 of right side, partition is 1.With reference to figure 2 and Fig. 3, in figure, arrow is refrigerant flow direction, the refrigerant gas of common parallel flow condenser level from refrigerant arm in the first runner district after inlet tube 1-3 enters more than partition flows from left to right, after preliminary condensation, refrigerant air-liquid mixture is from refrigerant arm right-to-left flowing in the second runner district, again after condensation, refrigerant air-liquid mixture flows from left to right from refrigerant arm in the 3rd runner district, refrigerant air-liquid mixture finally flows to left side header from right-to-left in the refrigerant arm below the bottom partition of left side, and flow out from outlet-4, complete the overall process of condensation, as shown by the arrows in Figure 1.
In order to reduce liquid refrigerant or the oily chance of adhering on header tube wall of press, the present embodiment, in the header of right side, partition 1-2 has small opening.After having small opening, the stream of cold-producing medium is with reference to figure 3, like this, some liquid refrigerant or press oil just can drain to along the small opening of partition the runner district directly entering bottom in the header of right side, gaseous refrigerant can directly be contacted with tube wall completely, thus the heat exchange efficiency in (Fig. 3 bend part, i.e. second, third runner district) in the middle part of raising parallel flow condenser.It should be noted that because the first runner district inner refrigerant is gaseous state, therefore do not need the partition in the first runner district offers small opening, and the cold-producing medium in the runner district of bottom is liquid, therefore generally also do not need to offer small opening on the partition in this district, and the cold-producing medium being positioned at the first runner district and bottom runner district is gas-liquid mixed shape, therefore partition most preferably in the first runner district and bottom runner district offers small opening.
Small opening on described partition offers structural reference Fig. 4 and Fig. 5, Fig. 4 is the side view of partition, Fig. 5 is the top view of partition, as above, shown in two figure, partition 1-2 surrounding is plain film, is beneficial to and welds together with header, middle part becomes a recess 1-2-1 to concave, small opening 1-2-2 is positioned at concave bottom place, liquid refrigerant and press oil can be collected to middle part, be flowed down by small opening.The partition small opening of the present embodiment is offered structure and is not limited to above-mentioned citing, the form in other gaps such as arc shape or ring-type can also be adopted, such as, with reference to figure 6 and Fig. 7, crack is increased outward in the semi-circumference of partition 1-2, namely described partition edge has semicircular breach, and described small opening 1-2-2 is formed by semicircular breach and header 1-1 tube wall, and this structure more can be conducive to press oil and flow down in afflux tube wall from then on small opening with liquid refrigerant.Structure and the said structure of arc shape are similar, and namely described partition edge has arc notch (not shown), and described small opening is formed by arc notch and afflux tube wall.
After refriger-ant section is condensed into liquid, liquid differs comparatively large with specific gravity of gas, the small volume shared by liquid refrigerant, and aperture is not easily too large, is advisable with 0.5-5mm, and concrete size is closed with heat exchanger shunt and header diameter.The corresponding heat exchange efficiency of general pore size improves an optimum value, causes heat exchange efficiency to decline if conference is crossed in aperture.Show that curve map between small opening aperture and heat exchange efficiency as shown in Figure 8 by experiment.
Adopt an air-conditioner of same specification parallel-flow heat exchanger for off-premises station, the via increasing different-diameter at first partition tests refrigerating capacity, power, Energy Efficiency Ratio as shown in following table one according to specified cooling condition under GB/T7725-2004 standard:
Table one is the Energy Efficiency Ratio table of comparisons under each heat exchanger types:
| Project | Unit | Data 1 | Data 2 | Data 3 | Data 4 |
| Heat exchanger types | - | No conduction through hole | 1mm via | 2mm via | 5mm via |
| Refrigerating capacity | W | 3491 | 3498 | 3496 | 3487 |
| Power | W | 1076 | 1071 | 1047 | 1075 |
| Energy Efficiency Ratio (EER) | W/W | 3.24 | 3.27 | 3.34 | 3.24 |
As can be seen from the table: when via is 2mm, the power drop 29W of air-conditioner, Energy Efficiency Ratio improves 0.10.
Embodiment two, the present embodiment proposes a kind of air-conditioner, this air-conditioner is provided with a kind of described parallel flow condenser of embodiment.By installing above-mentioned condenser, that some liquid refrigerant and press oil are imported condenser is latter half of, thus greatly improves the heat exchange efficiency in the middle part of parallel flow condenser.
The above; it is only preferred embodiment of the present invention; it is not restriction the present invention being made to other form; the equivalence that any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as equivalent variations is implemented; but everyly do not depart from technical solution of the present invention content; according to any simple modification, equivalent variations and remodeling that technical spirit of the present invention is done above embodiment, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a parallel flow condenser, the both sides of this condenser are header, be provided with partition header inner flow passage being separated into multiple runner district, it is characterized in that in described header: the partition behind described first runner district has small opening.
2. parallel flow condenser according to claim 1, is characterized in that: the partition between described first runner district and last runner district has small opening.
3. parallel flow condenser according to claim 1 and 2, is characterized in that: described partition edge has arc notch, and described small opening is formed by arc notch and afflux tube wall.
4. parallel flow condenser according to claim 1 and 2, is characterized in that: described partition edge has semicircular breach, and described small opening is formed by semicircular breach and afflux tube wall.
5. parallel flow condenser according to claim 1 and 2, is characterized in that: described partition has a medial concavity, and described small opening is positioned at the bottom of described recess.
6. parallel flow condenser according to claim 3, is characterized in that: described small opening aperture is 0.5mm-5mm.
7. parallel flow condenser according to claim 4, is characterized in that: described small opening aperture is 0.5mm-5mm.
8. parallel flow condenser according to claim 5, is characterized in that: described small opening aperture is 0.5mm-5mm.
9. parallel flow condenser according to claim 7, is characterized in that: described small opening aperture is 2mm.
10. an air-conditioner, is characterized in that: this air-conditioner is provided with parallel flow condenser according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293709.0A CN104279798A (en) | 2013-07-12 | 2013-07-12 | Parallel flow condenser and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293709.0A CN104279798A (en) | 2013-07-12 | 2013-07-12 | Parallel flow condenser and air conditioner with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104279798A true CN104279798A (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310293709.0A Pending CN104279798A (en) | 2013-07-12 | 2013-07-12 | Parallel flow condenser and air conditioner with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833241A (en) * | 2015-04-21 | 2015-08-12 | 张家口沃源自动化科技有限责任公司 | Eddy pressurization energy converter |
| CN107787436A (en) * | 2015-06-29 | 2018-03-09 | 马勒国际公司 | Condenser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5481800A (en) * | 1993-11-24 | 1996-01-09 | Wynn's Climate Systems, Inc. | Method of making a parallel flow condenser with lap joined headers |
| US6666909B1 (en) * | 2000-06-06 | 2003-12-23 | Battelle Memorial Institute | Microsystem capillary separations |
| CN201724476U (en) * | 2010-06-29 | 2011-01-26 | 南京协众汽车空调集团有限公司 | Parallel flow condenser for automobile air conditioner |
| CN201764757U (en) * | 2009-06-29 | 2011-03-16 | 李政 | Novel concurrent flow condenser of automotive air conditioner |
| CN203053095U (en) * | 2012-12-18 | 2013-07-10 | 芜湖博耐尔汽车电气***有限公司 | Novel process parallel flow condenser of automobile air conditioner |
-
2013
- 2013-07-12 CN CN201310293709.0A patent/CN104279798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5481800A (en) * | 1993-11-24 | 1996-01-09 | Wynn's Climate Systems, Inc. | Method of making a parallel flow condenser with lap joined headers |
| US6666909B1 (en) * | 2000-06-06 | 2003-12-23 | Battelle Memorial Institute | Microsystem capillary separations |
| CN201764757U (en) * | 2009-06-29 | 2011-03-16 | 李政 | Novel concurrent flow condenser of automotive air conditioner |
| CN201724476U (en) * | 2010-06-29 | 2011-01-26 | 南京协众汽车空调集团有限公司 | Parallel flow condenser for automobile air conditioner |
| CN203053095U (en) * | 2012-12-18 | 2013-07-10 | 芜湖博耐尔汽车电气***有限公司 | Novel process parallel flow condenser of automobile air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833241A (en) * | 2015-04-21 | 2015-08-12 | 张家口沃源自动化科技有限责任公司 | Eddy pressurization energy converter |
| CN104833241B (en) * | 2015-04-21 | 2017-10-31 | 张家口沃源自动化科技有限责任公司 | One kind vortex supercharging radiator |
| CN107787436A (en) * | 2015-06-29 | 2018-03-09 | 马勒国际公司 | Condenser |
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Application publication date: 20150114 |