CN101545701A - Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser - Google Patents
Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser Download PDFInfo
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- CN101545701A CN101545701A CN200910014966A CN200910014966A CN101545701A CN 101545701 A CN101545701 A CN 101545701A CN 200910014966 A CN200910014966 A CN 200910014966A CN 200910014966 A CN200910014966 A CN 200910014966A CN 101545701 A CN101545701 A CN 101545701A
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Abstract
The invention provides a condenser of an outdoor unit of an air conditioner and the outdoor unit provided with the condenser. All air intake branch tubes are completely arranged on a leeward side, air-out branch tubes are completely arranged on a windward side, and freezing media of a plurality of diversion branches sequentially flows through a U-shaped tube bank on the leeward side and a U-shaped tube bank on the windward side; the air-out branch tubes are collected in the inlet of a flow divider, and a collection tube is installed on the outlet of the flow divider and is communicated with the U-shaped tubes on the windward side of an undercooling section. The invention can realize the miniaturization of the equal-cooling-section outdoor units of the air conditioner, and the energy efficiency degree of the measured value of refrigeration energy efficiency ratio (EER) meets the demands of the four or five degree of international standard, thereby realizing the low cost of air conditioner products.
Description
Technical field
The present invention relates to air-conditioner, relate in particular to the air-conditioner outdoor unit condenser.
Background technology
Referring to Fig. 1, to be that the family expenses constant speed air conditioner of 7200W is general adopt 32 U type pipework condensation devices to existing cold section, because its flow arrangement is not too reasonable, complete machine Energy Efficiency Ratio EER is 4 grades of GBs even 5 grades substantially.
When kind of refrigeration cycle, the condensation process of cold-producing medium in condenser is overheated, saturated and cold excessively, therefore generally also condenser is divided into superheat section, saturated section and super cooled sect.
Though above-mentioned condenser circulating water pass also adopts countercurrent flow to arrange, but there are 2 flow processs to be " U " type connected mode in 4 shunt, and U type pipe quantity is too much, overheated higher pressure refrigerant gas progressively is condensed into the high pressure saturated liquid in condenser, saturated liquid flows upward to outlet stool by " U " type flow process bottom section, causes cold-producing medium coalescent, liquid refrigerant will overcome gravity effect, therefore flow resistance is big, and also deposits lubricating oil easily, and is unfavorable to the press operational reliability.Enter super cooled sect after 4 branch road flow processs gather, super cooled sect is divided into 2 and advances 2 and go out, and causes cold-producing medium slack-off at the super cooled sect flow velocity, and crushing is big, and the refrigerating capacity performance is not come out, thereby causes complete machine EER on the low side, and complete machine actual measurement EER does not also reach 4 grades of efficiency requirements of GB sometimes.This shows that though disposed 32 U type pipes, condenser complete machine Energy Efficiency Ratio EER is still 4 grades of GBs, the Energy Efficiency Ratio effect is undesirable, and the cost height.
Summary of the invention
The invention provides a kind of air-conditioner outdoor unit condenser and the off-premises station of this condenser is installed, it can be realized with the miniaturization of cold section air-conditioner outdoor unit, and refrigeration efficiency satisfies GB 4 or 5 grades of requirements than EER measured value efficiency grade, thereby realizes the low cost of air-conditioner product.
In order to reach the purpose that solves the problems of the technologies described above, technical scheme of the present invention is, a kind of air-conditioner outdoor unit condenser, comprise double U type pipe, superheat section, saturated section and super cooled sect, a plurality of diverter branch, a plurality of air intake branches, a plurality ofly go out gas branch pipe, current divider and gather pipe, it is characterized in that: described whole air intake branches are arranged at the leeward side of condenser, describedly all go out the windward side that gas branch pipe is arranged at condenser, the U type pipe of described super cooled sect all is arranged on the windward side of condenser, behind the U type pipe row of the cold-producing medium flow process of described each diverter branch for the leeward side of all flowing through earlier, the U type pipe row of windward side again flows through, describedly a plurality ofly go out gas branch pipe and collect in the current divider import, the described pipe that gathers is contained in described current divider outlet, and the described pipe that gathers is communicated with the U type pipe of described super cooled sect windward side.
In technical scheme of the present invention, also have following technical characterictic: described condenser is made up of 24 U type pipes, and described diverter branch is three the tunnel, and the flow process of described diverter branch is for falling the setting of " U " type, or " N " type of falling, or by " U " type of falling and " N " type of falling combination.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 7 U type pipes to be formed, and described super cooled sect windward side has 3 U type pipes, and the flow process of described three diverter branch is for falling the setting of " U " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 7 U type pipes to be formed, and the U type pipe of described super cooled sect is that 3 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " N " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first and second road flow process in the described diverter branch is for falling the setting of " U " type, and the Third Road flow process in the described diverter branch is for falling the setting of " N " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first and third tunnel flow process in the described diverter branch is for falling the setting of " N " type, and the second tunnel flow process in the described diverter branch is for falling the setting of " U " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 6 U type pipes to be formed, and the U type pipe of described super cooled sect is that 2 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " U " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 8 U type pipes to be formed, and the U type pipe of described super cooled sect is that 2 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " N " type;
Perhaps, described first and second diverter branch is that 8 U type pipes are formed, and described the 3rd diverter branch is that 7 U type pipes are formed, and the U type pipe of described super cooled sect is that 3 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " N " type.
In technical scheme of the present invention, also have following technical characterictic: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first via flow process in the described diverter branch is for falling the setting of " U " type, and second and third road flow process in the described diverter branch is for falling the setting of " N " type.
In technical scheme of the present invention, also have following technical characterictic: described current divider is a pressure drop type current divider.
In technical scheme of the present invention, also have following technical characterictic: the part U type pipe of the 3rd diverter branch in described a plurality of diverter branch is arranged on described super cooled sect leeward side zone.
Show that by experiment condenser of the present invention can realize that same U type pipe quantity obtains higher refrigeration EER, or obtains with the identical refrigeration EER efficiency grade of cold section, reduce U type pipe quantity, realize the miniaturization of condenser, reduce cost, the important topic that need solve for the present invention.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail.
Fig. 1 is 32 U types of prior art pipework condensation device flow chart;
The system flow chart of 5 embodiment when Fig. 2~6th, condenser of the present invention are 24 U type pipes;
Fig. 7 is that condenser of the present invention is the system flow chart of 20 U type pipe embodiment;
Fig. 8 and Fig. 9 are the system flow charts of condenser of the present invention 2 embodiment when being 26 U type pipes;
Figure 10 is a condenser wind field wind speed schematic diagram of the present invention;
1, condenser; 2, total inlet pipe; 2-1, first air intake branch; 2-2, second air intake branch; 2-3, the 3rd air intake branch; 3-1, first diverter branch; 3-2, second diverter branch; 3-3, diverter branch; 4-1, first goes out gas branch pipe; 4-2, second goes out gas branch pipe; 4-3, the 3rd goes out gas branch pipe; 5, pressure drop type current divider; 6, gather pipe; 7, super cooled sect; 8, always go out pipe; The U type pipe of 9-1, first fen branch road; The U type pipe of 9-2, second fen branch road; The U type pipe of 9-3, the 3rd fen branch road; The U type pipe of 9-4, super cooled sect; 10, leeward side; 11, windward side; 12, intervalve.
The specific embodiment
Technical scheme of the present invention is a kind of newly-designed condenser for outdoor unit of air conditioner, by double U type pipe, intervalve 12, gather pipe 6, outlet and some elbows are formed, wherein on total inlet pipe 2, tell 3 arm 2-1,2-2,2-3 that bore is identical, gather the pipe group by three internal diameters and pipe range adjustable arm 4-1,4-2,4-3, pressure drop type current divider 5, gather pipe 6 and form.
Referring to Fig. 2, the leeward side 10, three tunnel that No. three air intake branch 2-1,2-2,2-3 all are arranged at condenser 1 goes out the windward side 11 that gas branch pipe 4-1,4-2,4-3 are arranged at condenser 1.Each diverter branch 3-1,3-2,3-3 are 7 U type pipe 9-1,9-2,9-3 form, and the U type pipe 9-4 of super cooled sect 7 windward sides is that 3 U type pipes are formed, and condenser 1 has 24 U type pipes altogether like this.The flow process of described three diverter branch 3-1,3-2,3-3 is for falling the setting of " U " type.Wherein, the part U type pipe 9-3 among the 3rd diverter branch 3-3 is arranged on super cooled sect 7 leeward sides 10 zones.
During work, behind the U type pipe row of the cold-producing medium flow process of described diverter branch 3-1,3-2,3-3 for the leeward side 10 of all flowing through earlier, the U type pipe row of the windward side 11 of flowing through again.Then, enter three and go out gas branch pipe 4-1,4-2,4-3, and collect in the import of current divider 5 jointly,, flow out from always going out pipe 8 at last again from gathering the U type pipe 9-4 that pipe 6 enters super cooled sect 7 windward sides.
Referring to Fig. 3, as different from Example 1, the flow process of described three diverter branch 3-1,3-2,3-3 is for falling the setting of " N " type.
Embodiment 3
Referring to Fig. 4, as different from Example 1, first and second road 3-1 in the described diverter branch, 3-2 flow process are for falling the setting of " U " type, and described the 3rd diverter branch 3-3 flow process is for falling the setting of " N " type.
Implementation column 4
Referring to Fig. 5, as different from Example 1, first and third road 3-1 in the described diverter branch, 3-3 flow process are for falling the setting of " N " type, and the described second diverter branch 3-2 flow process is for falling the setting of " U " type.
Referring to Fig. 6, as different from Example 1, the first via 3-1 flow process in the described diverter branch is for falling the setting of " U " type, and second and third road 3-2 in the described diverter branch, 3-3 flow process are for falling the setting of " N " type.
Show that by experiment wherein Fig. 7 system flow chart is preferred embodiment, the Energy Efficiency Ratio height.It is made up of 24 U type pipes, and the 1 the tunnel for " U " type that falls connects, and the 2nd, the 3 tunnel for " N " type that falls connects, and gathering in 6 groups of the pipes 3, to branch out bore identical, and length of run is from the 1 the road to the 3 the tunnel for successively decreasing, and super cooled sect is connected to form by 3 U type pipes.
Referring to Fig. 7, present embodiment is the condenser of 20 U type pipes, and each diverter branch is 6 U type pipes, and super cooled sect is 2 U type pipes; Three diverter branch flow processs are down the setting of " U " type.
Referring to Fig. 8, present embodiment is the condenser of 26 U type pipes, and each diverter branch is 8 U type pipes, and super cooled sect is 2 U type pipes, and three diverter branch flow processs are down the setting of " N " type.
Referring to Fig. 9, present embodiment is the condenser of 26 U type pipes, and first and second diverter branch is that 8 U type pipes, the 3rd diverter branch are 7 U type pipes, and super cooled sect is 3 U type pipes, and three diverter branch flow processs are down the setting of " N " type.
Outdoor machine fan adopts aerofoil fan, so condenser 1 wind field wind speed claims " V " font to distribute, and referring to Figure 10, promptly wind speed is big up and down, and is middle little; The air wind-warm syndrome through condenser from windward side 11 to leeward side 10 for increasing progressively, according to the good more principle of the more little then heat exchange property of logarithm heat transfer temperature difference, therefore import is all placed leeward side 10, outlet places windward side 11, and promptly U type pipe is adverse current (cold-producing medium general flow direction and air reverses during kind of refrigeration cycle) and is provided with and is connected.After system's miniaturization, defrosting is easier to, and windward side 11 heat exchange properties are good, so super cooled sect 7 all is arranged on windward side 11, and it is cold excessively to be beneficial to cold-producing medium, increases refrigerating capacity.Branch's flow process is all by falling " U " type, referring to accompanying drawing 2, fall " N " type such as Fig. 3 or by " U " type of falling and " N " type of falling combination as accompanying drawing 4~6 etc., and this kind countercurrent flow layout, the flow of refrigerant resistance is little.During kind of refrigeration cycle, import is an overheated gas, exports to the subcooled liquid of certain degree of supercooling is arranged, and the density between gas and the liquid refrigerant differs greatly, therefore the flow of cold-producing medium from top to bottom each branch road successively decrease, promptly go up a branch road coil pipe flow greater than next branch road coil pipe flow.
Heat circulation time, import is the very little two-phase fluid of mass dryness fraction, exports to be overheated gas, and the flow of cold-producing medium each branch road from the bottom up successively decreases, and promptly next branch road coil pipe flow is greater than a last branch road coil pipe flow.Therefore the present invention is freezed for equilibrium, heat flow process and wind field wind conditions, 3 branch out pipe and are aggregated into current divider 5, tell length of tube and internal diameter can be adjusted (adjusting refrigerant flow) for 3, when heating circulation (this moment, condenser used as evaporimeter), along with cold-producing medium evaporates in the super cooled sect of former kind of refrigeration cycle, it is big that gas-liquid two-phase cold-producing medium mass dryness fraction further becomes, therefore this current divider is a pressure drop type current divider, two-phase mix refrigerant after becoming greatly with the assurance mass dryness fraction is behind pressure drop type current divider, the mass dryness fraction of assigning to each arm is basic identical, heats circulation separatory uniformity and stability thereby improve.The U type pipe (general 2~4) that cold-producing medium after gathering enters the windward side foot is a super cooled sect, and this section cold-producing medium flow velocity is fast, helped cold, thereby the refrigerating capacity that improves.
Therefore, the actual measurement EER that condenser of the present invention has solved after the outdoor condenser miniaturization is not less than former big casing off-premises station (32 U type pipework condensation devices), and specified heating capacity and low-temperature heating capacity also can satisfy instructions for use, has realized the low cost of off-premises station.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1, a kind of air-conditioner outdoor unit condenser, comprise double U type pipe, superheat section, saturated section and super cooled sect, a plurality of diverter branch, a plurality of air intake branches, a plurality ofly go out gas branch pipe, current divider and gather pipe, it is characterized in that: described whole air intake branches are arranged at the leeward side of condenser, describedly all go out the windward side that gas branch pipe is arranged at condenser, the U type pipe of described super cooled sect all is arranged on the windward side of condenser, behind the U type pipe row of the cold-producing medium flow process of described each diverter branch for the leeward side of all flowing through earlier, the U type pipe row of windward side again flows through, describedly a plurality ofly go out gas branch pipe and collect in the current divider import, the described pipe that gathers is contained in described current divider outlet, and the described pipe that gathers is communicated with the U type pipe of described super cooled sect windward side.
2, according to the described a kind of air-conditioner outdoor unit condenser of claim 1, it is characterized in that: described condenser is made up of 20~26 U type pipes, described diverter branch is three the tunnel, the flow process of described diverter branch is for falling the setting of " U " type, or " N " type of falling, or by " U " type of falling and " N " type of falling combination.
3, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 7 U type pipes and forms, described super cooled sect windward side has 3 U type pipes, the flow process of described three diverter branch is " U " type setting, or the flow process of described three diverter branch is for falling the setting of " N " type.
4, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first and second road flow process in the described diverter branch is for falling the setting of " U " type, and the Third Road flow process in the described diverter branch is for falling the setting of " N " type.
5, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first and third tunnel flow process in the described diverter branch is for falling the setting of " N " type, and the second tunnel flow process in the described diverter branch is for falling the setting of " U " type.
6, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 7 U type pipes and forms, the U type pipe of described super cooled sect is that 3 U type pipes are formed, first via flow process in the described diverter branch is for falling the setting of " U " type, and second and third road flow process in the described diverter branch is for falling the setting of " N " type.
7, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 6 U type pipes to be formed, and the U type pipe of described super cooled sect is that 2 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " U " type.
8, according to the described a kind of air-conditioner outdoor unit condenser of claim 2, it is characterized in that: described each diverter branch is 8 U type pipes to be formed, and the U type pipe of described super cooled sect is that 2 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " N " type;
Perhaps, described first and second diverter branch is that 8 U type pipes are formed, and described the 3rd diverter branch is that 7 U type pipes are formed, and the U type pipe of described super cooled sect is that 3 U type pipes are formed, and the flow process of described three diverter branch is for falling the setting of " N " type.
9, according to the described a kind of air-conditioner outdoor unit condenser of any claim in the claim 2 to 8, it is characterized in that: the part U type pipe of the 3rd diverter branch in described a plurality of diverter branch is arranged on the leeward side zone of described super cooled sect.
10, a kind of air-conditioner outdoor unit is characterized in that: the described air-conditioner outdoor unit condenser of above-mentioned any claim is installed.
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CN200910014966A CN101545701A (en) | 2009-05-06 | 2009-05-06 | Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser |
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CN200910014966A CN101545701A (en) | 2009-05-06 | 2009-05-06 | Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102954626A (en) * | 2012-11-08 | 2013-03-06 | 南京师范大学 | Multi-branch indoor heat exchanger for synchronous heat exchange |
CN105387657A (en) * | 2015-12-17 | 2016-03-09 | Tcl空调器(中山)有限公司 | Condenser and air conditioner with same |
CN106352728A (en) * | 2016-09-27 | 2017-01-25 | 广东美的制冷设备有限公司 | Connecting pipe assembly, heat exchanger assembly and air conditioner |
CN105987539B (en) * | 2015-02-03 | 2018-09-18 | 上海海立电器有限公司 | Air conditioner and its heat exchanger |
CN110260564A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of vehicle and air conditioning condenser for vehicle assembly |
CN112178795A (en) * | 2020-11-02 | 2021-01-05 | 珠海格力电器股份有限公司 | Outdoor heat exchanger and air conditioning device |
-
2009
- 2009-05-06 CN CN200910014966A patent/CN101545701A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102954626A (en) * | 2012-11-08 | 2013-03-06 | 南京师范大学 | Multi-branch indoor heat exchanger for synchronous heat exchange |
CN105987539B (en) * | 2015-02-03 | 2018-09-18 | 上海海立电器有限公司 | Air conditioner and its heat exchanger |
CN105387657A (en) * | 2015-12-17 | 2016-03-09 | Tcl空调器(中山)有限公司 | Condenser and air conditioner with same |
CN106352728A (en) * | 2016-09-27 | 2017-01-25 | 广东美的制冷设备有限公司 | Connecting pipe assembly, heat exchanger assembly and air conditioner |
CN110260564A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of vehicle and air conditioning condenser for vehicle assembly |
CN112178795A (en) * | 2020-11-02 | 2021-01-05 | 珠海格力电器股份有限公司 | Outdoor heat exchanger and air conditioning device |
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