CN203454474U - Micro-channel heat exchanging device and air conditioner - Google Patents
Micro-channel heat exchanging device and air conditioner Download PDFInfo
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- CN203454474U CN203454474U CN201320364980.4U CN201320364980U CN203454474U CN 203454474 U CN203454474 U CN 203454474U CN 201320364980 U CN201320364980 U CN 201320364980U CN 203454474 U CN203454474 U CN 203454474U
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Abstract
The utility model provides a micro-channel heat exchanging device and an air conditioner. The micro-channel heat exchanging device adopts two conventional micro-channel heat exchangers which are superposed up and down. When a system heats, high-temperature and high pressure refrigerant discharged by a compressor flows into a first-side second collecting pipe via a refrigerant output pipe, flows into a second-side second collecting pipe after flowing through the flat pipes connected with the first-side second collecting pipe and after being heat-exchanged, flows into a second-side first collecting pipe, and then flows into the flow separation chambers of the first-side first collecting pipe after being heat-exchanged through fins, and finally flows out through refrigerant output pipes. During the whole process, the pressure and the temperature of the refrigerant after heat exchange become lower and lower, but the air quantity and the heat exchange amount flowing through every part are approximately the same, and the air-out temperature is relatively approximate, so that the problem of non-uniform air-out temperature is effectively solved. The micro-channel heat exchanging device has the advantages of compact structure, firm installation, and uniform heating air-out temperature. The micro-channel heat exchanging device is applied to the indoor unit of the air conditioner, the air-out temperature of the air conditioner is uniform and the comfortableness is good.
Description
Technical field
The utility model belongs to air-conditioning technical field, more particularly, relates to a kind of air-conditioner that can improve the inhomogeneity Thermal Performance of Micro Channels device of leaving air temp while heating and adopt this kind of Thermal Performance of Micro Channels device.
Background technology
Refer to Fig. 1, in the prior art, micro-channel heat exchanger is during as indoor heat exchanger, all to adopt a micro-channel heat exchanger, shunting is substantially all according to the mode of when refrigeration bottom in and top out, this shunting mode heat exchange is better, refrigerating capacity and heating capacity can not have problems, but when heating, flow process and refrigeration are contrary, refrigerant is from the first header 11 of upper end ' enter, again from the second header 12 of lower end ' and refrigerant input pipe 13 ' go out, heat transfer temperature difference is large above, effective, heat transfer temperature difference is little below, weak effect, cause upper and lower heating effect difference obvious, add hot gas toward the principle rising, make the direct-firing air-conditioner two ends air-out temperature difference larger, thereby affected comfortableness.
For avoiding the problems referred to above, although also have for this situation and improve in prior art, under being changed into down, micro-channel heat exchanger shunting goes out, enter Chu Huo both sides, both sides in the middle of and go out in the middle of entering.Refer to Fig. 2, during for refrigeration, both sides go out mode in the middle of entering, specifically, while heating, refrigerant enters from the first header 11 " middle flow process chamber be communicated with refrigerant input pipe 14 ", and the micro-channel flat in the middle of flowing through is to the flow process chamber, both sides of the second header 12 " then flow to the first header 11 from the micro-channel flat on both sides ", and the refrigerant efferent duct 13 from being communicated with it " flow out; this mode has certain improvement to the air-out temperature difference; maximum temperature difference heat exchange and minimum temperature difference heat exchange are mixed, but the situation that still exists part to differ greatly for direct-firing air-conditioning.
Utility model content
The purpose of this utility model is to provide a kind of Thermal Performance of Micro Channels device, when being intended to solve existing Thermal Performance of Micro Channels device and heating due to refrigerant from upper end enter, bring out, heat transfer temperature difference is large, effective above, below little, the weak effect of heat transfer temperature difference, cause the large problem of the upper and lower two ends temperature difference.
For achieving the above object, the technical solution adopted in the utility model is: a kind of Thermal Performance of Micro Channels device is provided, comprise the first side afflux compound tube, the second side afflux compound tube and a plurality of flat tube, described the first side afflux compound tube comprises first side the first header and first side the second header that refrigerant is independently flowed through within it, and described two side afflux compound tubes comprise second side the first header and second side the second header that mutual side direction connects;
Described in each, in flat tube, be provided with many microchannels that connect its two ends, between described first side the first header and described second side the first header and between described first side the second header and described second side the second header, be respectively equipped with the fin that a plurality of described flat tube spaced apart and a plurality of and described flat tube contact setting;
In described first side the first header, be provided with at least one baffle plate, described baffle plate is separated at least two first pass compartments by described first side the first header, and described in each, first pass compartment is communicated with respectively a refrigerant input pipe;
Described first side the second header is communicated with a refrigerant efferent duct.
Further, in described second side the first header and described second side the second header, be respectively equipped with baffle plate described at least one, the inside of described second side the first header is formed with at least two the second flow process compartments, the inside of described second side the second header is formed with at least two the 3rd flow process compartments, described the second flow process compartment and described the 3rd flow process compartment be corresponding communicating one by one, described second flow process compartment with a described first pass compartment by the corresponding connection of described flat tube.
Particularly, described first side the first header and described first side the second header brazing or one-body molded.
Particularly, described second side the first header and described second side the second header brazing or one-body molded.
Particularly, described fin is corrugated fin, and described corrugated fin is located between two adjacent described flat tubes.
Optimally, the described flat tube that connects described first side the first header and described second side the first header leaves gap with being connected between described first side the second header and the described flat tube of described second side the second header.
Or particularly, described fin is plate-shaped fins, described in each, flat tube is arranged in described plate-shaped fins.
The beneficial effect of the Thermal Performance of Micro Channels device that the utility model provides is: the utility model Thermal Performance of Micro Channels device is equivalent to adopt two conventional micro-channel heat exchangers to overlap one on the other, has compact conformation, installs firmly, heats the advantages such as leaving air temp is even; When system heats, the HTHP refrigerant that compressor is discharged flows in first side the second header through refrigerant efferent duct, flow through respectively again after being connected flat tube and fin heat exchange with first side the second header and flow into second side the second header, then flow into second side the first header, the flat tube of flowing through again and being connected with second side the first header, after flat tube and fin heat exchange, flow into the flow process compartment of first side the first header, then from the refrigerant input pipe being communicated with each first pass compartment, flow out.In whole process, refrigerant pressure and temperature are more and more lower after heat exchange, but are substantially suitable from every air quantity of flowing through and heat exchange amount, so leaving air temp is also relatively approaching, have effectively solved the air-out inhomogeneous problem of scheme leaving air temp in the past; The Thermal Performance of Micro Channels device that the utility model provides.
The utility model also provides a kind of air-conditioner, comprises indoor set and off-premises station, and described off-premises station comprises compressor, and described indoor set comprises above-mentioned Thermal Performance of Micro Channels device.
The beneficial effect of the air-conditioner that the utility model provides is: owing to having adopted above-mentioned Thermal Performance of Micro Channels device, the leaving air temp of the utility model air-conditioner is even, and comfortableness is good.
Accompanying drawing explanation
The Thermal Performance of Micro Channels device that Fig. 1 provides for prior art one heat refrigerant flow path figure;
The Thermal Performance of Micro Channels device that Fig. 2 provides for prior art two heat refrigerant flow path figure;
The perspective view of the Thermal Performance of Micro Channels device that Fig. 3 provides for the utility model embodiment;
The front half side cross-sectional view of the Thermal Performance of Micro Channels device that Fig. 4 provides for the utility model embodiment;
The rear half side cross-sectional view of the Thermal Performance of Micro Channels device that Fig. 5 provides for the utility model embodiment;
The Thermal Performance of Micro Channels device that Fig. 6 provides for the utility model embodiment heat refrigerant flow path figure;
Fig. 7 is the local structure for amplifying schematic diagram of the embodiment one at A place in Fig. 4;
Fig. 8 is the local structure for amplifying schematic diagram of the embodiment two at A place in Fig. 4.
Note: in Fig. 3 to Fig. 5, only show the flat tube of a part of heat-exchanger rig and a part of fin.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
See also Fig. 3 to Fig. 5, the existing Thermal Performance of Micro Channels device that the utility model is provided describes.The utility model Thermal Performance of Micro Channels device 1 comprises the first side afflux compound tube 11, the second side afflux compound tube 12 and a plurality of flat tube 1313, the first side afflux compound tube 11 comprises first side the first header 111 and first side the second header 112 that refrigerant is independently flowed through within it, between these two headers, directly do not communicate, two side afflux compound tubes 12 comprise second side the first header 121 and second side the second header 122 that mutual side direction connects, that is to say, be directly to connect between these two headers; In each flat tube 13, be provided with many microchannels that connect its two ends, between first side the first header 111 and second side the first header 121 and between first side the second header 112 and second side the second header 122, be respectively equipped with a plurality of flat tubes 13 spaced apart and a plurality of fin 14 that contacts setting with flat tube 13; In first side the first header 111, be provided with at least one baffle plate 15, baffle plate 15 is separated at least two first pass compartments 1110 by first side the first header 111, and each first pass compartment 1110 is communicated with respectively a refrigerant input pipe 16; First side the second header 112 is communicated with a refrigerant efferent duct 17.
Refer to Fig. 6, the Thermal Performance of Micro Channels device 1 that the utility model provides is equivalent to adopt two conventional micro-channel heat exchangers to overlap one on the other to have compact conformation, installs firmly, heats the advantages such as leaving air temp is even simultaneously; When system heats, the HTHP refrigerant that compressor is discharged flows in first side the second header 112 through refrigerant efferent duct 17, flow through respectively again after being connected flat tube 13 and fin 14 heat exchange with first side the second header 112 and flow into second side the second header 122, then flow into second side the first header 121, the flat tube 13 of flowing through again and being connected with second side the first header 121, after flat tube 13 and fin 14 heat exchange, flow into the flow process compartment of first side the first header 111, then from the refrigerant input pipe 16 being communicated with each first pass compartment 1110, flow out.In whole process, refrigerant pressure and temperature are more and more lower after heat exchange, but are substantially suitable from every air quantity of flowing through and heat exchange amount, so leaving air temp is also relatively approaching, have effectively solved the air-out inhomogeneous problem of scheme leaving air temp in the past.
Refer to Fig. 3 to Fig. 5, interior at least one baffle plate 15 that is also simultaneously provided with respectively of second side the first header 121 and second side the second header 122, in the inside of second side the first header 121, be formed with at least two the second flow process compartments 1210, in the inside of second side the second header 122, be formed with at least two the 3rd flow process compartments 1220, the second flow process compartment 1210 and the corresponding connection one by one of the 3rd flow process compartment 1220, a second flow process compartment 1210 passes through the corresponding connection of flat tube 13 with a first pass compartment 1110, like this, the inside of whole heat-exchanger rig is divided into a plurality of refrigerant flow paths, during refrigeration, refrigerant liquid state can enter each flow process by the refrigerant input pipe 16 from first side the first header 111, finally be aggregated into the first side the second header 112 and refrigerant efferent duct 17, like this, refrigerant moves equably in each flow process, make refrigerant carry out exchange heat with flat tube 13 and fin 14 fully, greatly promoted heat-exchanger rig heat exchange efficiency, and temperature equalization, heat process, the traffic direction of refrigerant in each flow process is contrary.
Refer to Fig. 4, in the present embodiment, first side the first header 111 and first side the second header 112 can pass through brazing or integrally casting moulding, are connected firmly each other.Second side the first header 121 and second side the second header 122 also can pass through brazing or integrally casting moulding, guarantee mutual being connected firmly.
Please refer to Fig. 7, in the present embodiment, fin 14 can be selected corrugated fin 141, so respectively organizes corrugated fin 141 and is located between two adjacent flat tubes 13.Be preferably in the flat tube 13 that connects first side the first header 111 and second side the first header 121 and leave gap 130 with being connected between first side the second header 112 and the flat tube 13 of second side the second header 122, be beneficial to Air Flow, be beneficial to heat transfer.
Or, referring to Fig. 8, in the present embodiment, fin 14 also can be selected plate-shaped fins 142, and each flat tube 13 is arranged in plate-shaped fins 142.
The utility model also provides a kind of air-conditioner (not shown).The utility model air-conditioner comprises indoor set and off-premises station, and described off-premises station comprises compressor, and described indoor set comprises above-mentioned Thermal Performance of Micro Channels device.
Refer to Fig. 3 and Fig. 6, when air-conditioning is when system heats, the HTHP refrigerant that compressor is discharged flows into respectively in first side the second header 112 through refrigerant efferent duct 17, flow through respectively again after being connected flat tube 13 and fin 14 heat exchange with first side the second header 112 and flow into second side the second header 122, then flow into second side the first header 121, the flat tube 13 of flowing through again and being connected with second side the first header 121, after flat tube 13 and fin 14 heat exchange, flow into the flow process compartment of first side the first header 111, then from the refrigerant input pipe 16 being communicated with each flow process compartment, flow out.In whole process, refrigerant pressure and temperature are more and more lower after heat exchange, but are substantially suitable from every air quantity of flowing through and heat exchange amount, so leaving air temp is also relatively approaching, and the leaving air temp of air-conditioning is inhomogeneous, and comfortableness is good.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. Thermal Performance of Micro Channels device, it is characterized in that: comprise the first side afflux compound tube, the second side afflux compound tube and a plurality of flat tube, described the first side afflux compound tube comprises first side the first header and first side the second header that refrigerant is independently flowed through within it, and described two side afflux compound tubes comprise second side the first header and second side the second header that mutual side direction connects;
Described in each, in flat tube, be provided with many microchannels that connect its two ends, between described first side the first header and described second side the first header and between described first side the second header and described second side the second header, be respectively equipped with the fin that a plurality of described flat tubes spaced apart and a plurality of and described flat tube contact setting;
In described first side the first header, be provided with at least one baffle plate, described baffle plate is separated at least two first pass compartments by described first side the first header, and described in each, first pass compartment is communicated with respectively a refrigerant input pipe;
Described first side the second header is communicated with a refrigerant efferent duct.
2. Thermal Performance of Micro Channels device as claimed in claim 1, it is characterized in that: in described second side the first header and described second side the second header, be respectively equipped with baffle plate described at least one, the inside of described second side the first header is formed with at least two the second flow process compartments, the inside of described second side the second header is formed with at least two the 3rd flow process compartments, described the second flow process compartment and described the 3rd flow process compartment be corresponding communicating one by one, described second flow process compartment with a described first pass compartment by the corresponding connection of described flat tube.
3. Thermal Performance of Micro Channels device as claimed in claim 2, is characterized in that: described first side the first header and described first side the second header brazing or one-body molded.
4. Thermal Performance of Micro Channels device as claimed in claim 2, is characterized in that: described second side the first header and described second side the second header brazing or one-body molded.
5. the Thermal Performance of Micro Channels device as described in claim 1 to 4 any one, is characterized in that: described fin is corrugated fin, and described corrugated fin is located between two adjacent described flat tubes.
6. Thermal Performance of Micro Channels device as claimed in claim 5, is characterized in that: the described flat tube that connects described first side the first header and described second side the first header leaves gap with being connected between described first side the second header and the described flat tube of described second side the second header.
7. the Thermal Performance of Micro Channels device as described in claim 1 to 4 any one, is characterized in that: described fin is plate-shaped fins, and described in each, flat tube is arranged in described plate-shaped fins.
8. air-conditioner, comprises indoor set and off-premises station, and described off-premises station comprises compressor, it is characterized in that: described indoor set comprises the Thermal Performance of Micro Channels device described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320364980.4U CN203454474U (en) | 2013-06-24 | 2013-06-24 | Micro-channel heat exchanging device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320364980.4U CN203454474U (en) | 2013-06-24 | 2013-06-24 | Micro-channel heat exchanging device and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN203454474U true CN203454474U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320364980.4U Expired - Lifetime CN203454474U (en) | 2013-06-24 | 2013-06-24 | Micro-channel heat exchanging device and air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884136A (en) * | 2014-04-18 | 2014-06-25 | 天津三电汽车空调有限公司 | Micro-channel parallel-flow evaporator for air conditioner |
| CN107289795A (en) * | 2017-07-06 | 2017-10-24 | 合肥美的暖通设备有限公司 | Parallel-flow heat exchanger, water tank and air-source water heater |
| WO2022166224A1 (en) * | 2020-08-26 | 2022-08-11 | 广东美的暖通设备有限公司 | Heat exchanger, electric control box and air conditioning system |
-
2013
- 2013-06-24 CN CN201320364980.4U patent/CN203454474U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884136A (en) * | 2014-04-18 | 2014-06-25 | 天津三电汽车空调有限公司 | Micro-channel parallel-flow evaporator for air conditioner |
| CN107289795A (en) * | 2017-07-06 | 2017-10-24 | 合肥美的暖通设备有限公司 | Parallel-flow heat exchanger, water tank and air-source water heater |
| WO2022166224A1 (en) * | 2020-08-26 | 2022-08-11 | 广东美的暖通设备有限公司 | Heat exchanger, electric control box and air conditioning system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |