CN103791604B - Air heat exchanger - Google Patents
Air heat exchanger Download PDFInfo
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- CN103791604B CN103791604B CN201310511489.4A CN201310511489A CN103791604B CN 103791604 B CN103791604 B CN 103791604B CN 201310511489 A CN201310511489 A CN 201310511489A CN 103791604 B CN103791604 B CN 103791604B
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Abstract
A kind of air heat exchanger, can cut down the use amount of cold-producing medium, heat exchanger ability is high and cost is low.1st heat pipe group (31A) is made up of 6 article of the 1st refrigerant flow path (31a ~ 31f) being configured in liquid line side, 2nd heat pipe group (32A) is made up of 3 article of the 2nd refrigerant flow path (32a ~ 32c) being configured in flue side, and the heat pipe quantity of the 1st heat pipe group (31A) is set to 2 times of the heat pipe quantity of the 2nd heat pipe group (32A).In the 2nd current divider (42a ~ 42c), one end of 2 article of the 1st refrigerant flow path in each article of the 1st refrigerant flow path is together connected to one end of 1 article of the 2nd refrigerant flow path in the 2nd refrigerant flow path.By the heat conduction caliber of the 2nd refrigerant flow path (32a ~ 32c) divided by the value that the heat conduction caliber of the 1st refrigerant flow path (31a ~ 31f) obtains be greater than 1.35 and be less than 2.25 value.
Description
Technical field
The present invention relates to the air heat exchanger of the heat exchange carrying out cold-producing medium and air.
Background technology
Based on cutting down energy consumption and improving the object of the performance of air heat exchanger, and cut down the object of use amount of this cold-producing medium when cold-producing medium is greenhouse gases, sometimes must be thinner by the heat conduction pipe diameter determing of air heat exchanger.Like this when making heat conduction caliber attenuate, when in order to suppress refrigerant pressure loss to increase the number of path of refrigerant density less gas side, thermal conductivity can be caused to reduce due to the reduction of velocity in pipes, also easily produce cold-producing medium bias current, cause and be difficult to effectively use air heat exchanger.
Therefore, in order to effectively use air heat exchanger, as at patent document 1(Japanese Unexamined Patent Publication 2001-174047 publication) and patent document 2(Japanese Unexamined Patent Publication 2010-216718 publication) in describe, the heat pipe of the hydraulic fluid side that pressure loss is less is by thin footpath, and the gas side larger at pressure loss uses the heat pipe that diameter is thicker than hydraulic fluid side.
But, past is heat conduction caliber different from each other in the heat pipe of hydraulic fluid side and the heat pipe of gas side, and be number of path different from each other, thus need the pipe arrangement coupled together by heat pipe thinner for the diameter of heat pipe thicker for the diameter of gas side and hydraulic fluid side.Such as, as described in patent document 1, which, in the pipe arrangement part of this interflow and shunting, throttling arrangement is set to carry out reheat dehumidification.The pipe arrangement at this interflow and shunting of carrying out cold-producing medium to be got up by the Path Connection of varying number is expensive parts, causes air heat exchanger to become expensive.
[prior art document]
[patent document]
[patent document 1] Japanese Unexamined Patent Publication 2001-174047 publication
[patent document 2] Japanese Unexamined Patent Publication 2010-216718 publication
Summary of the invention
Problem of the present invention is to provide a kind of air heat exchanger, can cut down the use amount of cold-producing medium, and heat exchanger ability is high and cost is low.
The air heat exchanger of a first aspect of the present invention is configured between liquid line and flue, to carry out the heat exchange of cold-producing medium and air, described liquid line flows into for cold-producing medium when described air heat exchanger uses as evaporimeter, flow out for cold-producing medium when described air heat exchanger uses as condenser, described flue flows out for cold-producing medium when described air heat exchanger uses as evaporimeter, flow into for cold-producing medium when described air heat exchanger uses as condenser, described air heat exchanger has: the 1st heat pipe group, it is made up of many articles of the 1st refrigerant flow paths being configured in liquid line side, and the 2nd heat pipe group, it is made up of many articles of the 2nd refrigerant flow paths being configured in flue side, the quantity of the 1st refrigerant flow path is 2 times of the quantity of the 2nd refrigerant flow path, two articles of refrigerant flow paths of the 1st heat pipe group are together connected to the refrigerant flow path of one article of the 2nd heat pipe group, by the heat conduction caliber of the 2nd refrigerant flow path divided by the value that the heat conduction caliber of the 1st refrigerant flow path obtains be greater than 1.35 and be less than 2.25 value.
According to first aspect, if by the heat conduction caliber of the 2nd refrigerant flow path divided by the value that the heat conduction caliber of the 1st refrigerant flow path obtains be greater than 1.35 and be less than 2.25 value, then can keep higher refrigeration and the average heat-exchange capacity heated, and the connection of two article of the 1st refrigerant flow path and one article of the 2nd refrigerant flow path is also easily carried out, and thus realizes the reduction of cost.
The air heat exchanger of a second aspect of the present invention is the air heat exchanger according to first aspect, by the heat conduction caliber of the 2nd refrigerant flow path divided by the value that the heat conduction caliber of the 1st refrigerant flow path obtains be greater than 1.5 and be less than 2.0 value.
According to second aspect, air heat exchanger keeps higher refrigeration and the Be very effective of the average heat-exchange capacity heated.
The air heat exchanger of a third aspect of the present invention is the air heat exchanger according to first or second aspect, flows through the cold-producing medium of mix refrigerant as heat exchange of R32 or R32 in many articles of the 1st refrigerant flow paths and many articles of the 2nd refrigerant flow paths.
According to the third aspect, because cold-producing medium uses the mix refrigerant of R32 or R32, thus the impact of global warming is reduced.
The air heat exchanger of a fourth aspect of the present invention is according to the air heat exchanger in first ~ third aspect described in any one aspect, the quantity of the 1st refrigerant flow path is 2 × N article (N is natural number), the quantity of the 2nd refrigerant flow path is N article, described air heat exchanger also has: at least one the 1st distributary division, the refrigerant branch flowed into from liquid line is 2 × N part by it, to be assigned in 2 × N article of refrigerant flow path of the 1st heat pipe group; N number of 2nd distributary division, 2 × N article of refrigerant flow path of the 1st heat pipe group and N article of refrigerant flow path of the 2nd heat pipe group couple together by it; And at least one the 3rd distributary division, it makes N article of refrigerant flow path interflow of the 2nd heat pipe group and is connected with flue.
According to fourth aspect, by the 2nd distributary division, two article of the 1st refrigerant flow path can be connected to one article of the 2nd refrigerant flow path at low cost.
The air heat exchanger of a fifth aspect of the present invention is according to the air heat exchanger in first ~ fourth aspect described in any one aspect, described air heat exchanger also has multiple 1st fin and multiple 2nd fin that are combined into the shape of falling V, multiple 1st fin is installed in the 1st heat pipe group, and multiple 2nd fin is installed in the 2nd heat pipe group.
According to the 5th aspect, multiple 1st fin and multiple 2nd fin, in the shape of falling V, thus can configure air heat exchanger in less space.Further, can distinguish and flow the 1st fin of heat exchange of the 2nd many heat pipe group and the setting position of the 2nd fin for carrying out flow the 1st many heat pipe group and gas refrigerant of liquid refrigerant, thus easily carry out the setting of heat exchange.
Invention effect
Air heat exchanger according to a first aspect of the invention, by making the heat conduction caliber of the 1st refrigerant flow path attenuate, can provide at low cost and cutting down the use amount of cold-producing medium and the high air heat exchanger of heat-exchange capacity.
Air heat exchanger according to a second aspect of the invention, the Be very effective of the air heat exchanger that can heat-exchange capacity be provided at low cost high.
Air heat exchanger according to a third aspect of the invention we, can utilize the cold-producing medium less on the impact of global warming to obtain higher efficiency.
Air heat exchanger according to a forth aspect of the invention, can realize the connection of two article of the 1st refrigerant flow path and one article of the 2nd refrigerant flow path at low cost.
Air heat exchanger according to a fifth aspect of the invention, the use amount of cold-producing medium is few, and heat-exchange capacity is high, and easily realizes the densification of air heat exchanger at low cost.
Accompanying drawing explanation
Fig. 1 is the loop diagram of the air conditioner of the air heat exchanger that application embodiment relates to.
Fig. 2 is the sectional view of indoor set.
Fig. 3 is the schematic diagram of the structure for illustration of air heat exchanger.
Fig. 4 is the schematic diagram of an example of concrete structure for illustration of air heat exchanger.
Fig. 5 is the schematic diagram of another example of concrete structure for illustration of air heat exchanger.
Fig. 6 is the curve map representing the heat conduction caliber of the 1st refrigerant flow path and the ratio of the heat conduction caliber of the 2nd refrigerant flow path and the relation of heat-exchange capacity.
Label declaration
10 air conditioners; 11 indoor sets; 12,14 refrigerant pipings; 20,20A, 20B air heat exchanger; 21,21A, 21B the 1st fin; 22,22A, 22B the 2nd fin; 31 the 1st heat pipe groups; 31a ~ 31j the 1st refrigerant flow path; 32 the 2nd heat pipe groups; 32a ~ 32e the 2nd refrigerant flow path; 41,41a, 41b the 1st current divider; 42,42a ~ 42e the 2nd current divider; 43,43a, 43b the 3rd current divider.
Detailed description of the invention
(1) refrigerant loop of air conditioner
As shown in Figure 1, the air heat exchanger 20 of an embodiment of the invention can be applicable to air conditioner 10.Air conditioner 10 has the indoor set 11 and off-premises station 13 disposed in the outdoor that are arranged on indoor wall etc.Be connected by set connecting pipings (not shown) between these indoor set 11 and off-premises stations 13, this set connecting pipings set refrigerant piping 12,14, transmission line (not shown) and order wire (not shown) etc.
Air heat exchanger 20 is located in indoor set 11 together with Air Blast fan 18 grade.On the other hand, compressor 131, No. four transfer valve 132, reservoir 133, outdoor heat converter 134, electric expansion valve 135, filter 136, liquid draught excluder 137, gas blocking valve 138 and Air Blast fan 139 etc. are provided with at off-premises station 13.
By refrigerant piping 12,14, gateway, the hydraulic fluid side 19a of the air heat exchanger 20 of indoor set 11 is connected with the liquid draught excluder 137 of off-premises station 13, and the gas side gateway 19b of air heat exchanger 20 is connected with the gas blocking valve 138 of off-premises station 13.From liquid draught excluder 137 through filter 136 and electric expansion valve 135, the refrigerant piping of off-premises station 13 inside is utilized to be connected to gateway, the hydraulic fluid side 134a of outdoor heat converter 134.The gas side gateway 134b of this outdoor heat converter 134 is connected with the 2nd port of No. four transfer valves 132.Further, the 4th port of No. four transfer valves 132 is connected with gas blocking valve 138.
In addition, the 1st port of No. four transfer valves 132 is connected with the ejiction opening of compressor 131.3rd port is connected via the suction inlet of reservoir 133 with compressor 131.When heating in air conditioner 10, this No. four transfer valve 132 is switched to connection status indicated by the solid line, and cold-producing medium is flowed from the 1st port to the 2nd port, and cold-producing medium is flowed from the 4th port to the 3rd port.On the other hand, when freezing, No. four transfer valves 132 are switched to connection status represented by dashed line, and cold-producing medium is flowed from the 1st port to the 4th port, and cold-producing medium is flowed from the 2nd port to the 3rd port.
As mentioned above, indoor set 11 and off-premises station 13 are connected by refrigerant piping 12,14, form refrigerant loop thus.In this refrigerant loop, when heating, cold-producing medium again turns back in compressor 131 through the 4th port of the 1st port of No. four transfer valves 132 and the 2nd port, outdoor heat converter 134, electric expansion valve 135, filter 136, liquid draught excluder 137, air heat exchanger 20, gas blocking valve 138, No. four transfer valve 132 and the 3rd port and reservoir 133 successively from compressor 131.In addition, in refrigerant loop when freezing, cold-producing medium again turns back in compressor 131 through the 2nd port of the 1st port of No. four transfer valves 132 and the 4th port, gas blocking valve 138, air heat exchanger 20, liquid draught excluder 137, filter 136, electric expansion valve 135, outdoor heat converter 134, No. four transfer valve 132 and the 3rd port and reservoir 133 successively from compressor 131.
The cold-producing medium used in this refrigerant loop is the unitary system cryogen of R32 or the mix refrigerant of R32.Wherein, the mix refrigerant of R32 refers to the cold-producing medium containing the R410A of more than 50 % by weight etc. in R32.
(2) structure in general of indoor set
As shown in Figure 2, indoor set 11 mainly has Air Blast fan 18, air heat exchanger 20, housing 50, air cleaner 61 and blow direction adjusting blades 62,63,64.
Air heat exchanger 20 has: multiple 1st fins 21 of tabular, and they are arranged parallel to each other along the length direction of air heat exchanger 20; With multiple 2nd fins 22 of tabular, they are arranged parallel to each other along its length.Observe from the side, the 1st fin 21 of front face side becomes with the 2nd fin 22 combination with one another of side below the shape of falling V.1st heat pipe group 31 and the 2nd heat pipe group 32 are to be installed on the 1st fin 21 and the 2nd fin 22 relative to the 1st fin 21 and the vertically extending mode of the 2nd fin 22 respectively.The direction that these the 1st heat pipe groups 31 and the 2nd heat pipe group 32 extend is the length direction of indoor set 11.
Air Blast fan 18 is configured in the region clipped by the 2nd fin 22 of the 1st fin 21 of front face side and side below.Air Blast fan 18 is cross flow fans, and the direction that the 1st heat pipe group 31 and the 2nd heat pipe group 32 of air heat exchanger 20 extend extends longlyer.The length of this Air Blast fan 18 and the same length of air heat exchanger 20.
Housing 50 surrounds above-mentioned Air Blast fan 18 and air heat exchanger 20 around.The opening portion being positioned at the end face of indoor set 11 is the suction inlet 51 for sucking room air.In addition, the blow-off outlet 52 for blowing out sucked room air is provided with in the bottom surface of indoor set 11.Blow-off outlet 52 be provided with for regulate the horizontal direction of air-flow and vertical direction towards blow direction adjusting blades 62,63,64.
The room air sucked from the suction inlet 51 of housing 50 removes dust by air cleaner 61, air heat exchanger 20 the 1st fin 21 and the 2nd fin 22 and pass downwards between the 1st heat pipe group 31 and the 2nd heat pipe group 32.Now, the 1st fin 21 and the 2nd fin 22 and the 1st heat pipe group 31 and the 2nd heat pipe group 32 is utilized to carry out heat exchange to the room air that the suction inlet 51 from housing 50 sucks.Air Blast fan 18 carries room air with the suction inlet 51 from housing 50 through air heat exchanger 20 mode downward.Further, the air carried by Air Blast fan 18 is gone by from blow-off outlet 52 blowout.Blowing out from blow-off outlet 52 air gone is the tempered air that be have adjusted temperature and humidity by air heat exchanger 20, and utilizes blow direction adjusting blades 62,63,64 to regulate the direction blown out.
(3) structure of air heat exchanger
(3-1) general structure of air heat exchanger
The general structure of the refrigerant piping 12,14 schematically illustrating air heat exchanger 20 in figure 3 and be connected with air heat exchanger 20.The flowing of the cold-producing medium when arrow shown in Fig. 3 represents refrigeration.Refrigerant piping 12 is liquid lines of main flow of refrigerant for liquid, and refrigerant piping 14 is flues of main supplied gas flow of refrigerant.Air heat exchanger 20 has an example of the 1st current divider 41(the 1st distributary division), the 1st heat pipe group 31 that is made up of the 1st refrigerant flow path of 2 × N article (N is natural number), hydraulic fluid side heat exchange department 25, N number of 2nd current divider, the 2nd heat pipe group 32 be made up of N article of the 2nd refrigerant flow path, gas side heat exchange department 26, the 3rd current divider 43(the 3rd distributary division one routine).
A gateway of the side of refrigerant flow direction the 1st current divider 41 primarily of liquid refrigerant formation of flowing in refrigerant piping 12, the 1st refrigerant flow path of 2 × N article of the 1st heat pipe group 31 is connected with 2 × N number of each gateway of the opposite side of the 1st current divider 41 respectively.Article 2, the 1st refrigerant flow path is connected with two gateways of the side of the 2nd current divider 42, and 1 article of the 2nd refrigerant flow path is connected with a gateway of the opposite side of the 2nd current divider 42.N article of the 2nd refrigerant flow path of the 2nd heat pipe group 32 is connected with N number of gateway of the side of the 3rd current divider 43 respectively, a gateway of the opposite side of refrigerant flow direction the 3rd current divider 43 primarily of gas refrigerant formation of flowing in refrigerant piping 14.
Hydraulic fluid side heat exchange department 25 is primarily of the 1st heat pipe group 31 and multiple 1st fin 21(reference Fig. 2) form, between the cold-producing medium comprising many liquid refrigerants and air, mainly carry out the part of heat exchange.In addition, gas side heat exchange department 26 is primarily of the 2nd heat pipe group 32 and multiple 2nd fin 22(reference Fig. 2) form, between the cold-producing medium comprising many gas refrigerants and air, mainly carry out the part of heat exchange.
(3-2) concrete structure of air heat exchanger
(3-2-1) combination of 6 article of the 1st refrigerant flow path and 3 article of the 2nd refrigerant flow path
Fig. 4 represents the air heat exchanger 20A be made up of 6 article of the 1st refrigerant flow path 31a, 31b, 31c, 31d, 31e, 31f and 3 article of the 2nd refrigerant flow path 32a, 32b, 32c.That is, the 1st heat pipe group 31A is made up of 6 article of the 1st refrigerant flow path 31a ~ 31f, and the 2nd heat pipe group 32A is made up of 3 article of the 2nd refrigerant flow path 32a ~ 32c.In addition, in the diagram, the part of dotted line represents the U-shaped pipe for making the flowing of cold-producing medium carry out U-shaped reversion.
Below, the structure of air heat exchanger 20A is described according to the flowing of cold-producing medium during refrigeration.The liquid refrigerant LR supplied from refrigerant piping 12 to be supplied to the gateway of the side of the 1st current divider 41a by the pipe arrangement 19c of gateway, hydraulic fluid side 19a.In the 1st current divider 41a by refrigerant branches in 6 article of the 1st refrigerant flow path 31a ~ 31f be connected with 6 gateways of opposite side.
The heat conduction caliber of the 1st refrigerant flow path 31a ~ 31f is mutually the same.Further, the 1st fin 21A comprises the 1st fin 21a on rear side of top, the 1st fin 21b on front side of top, the 1st fin 21c of lower rearward side and the 1st fin 21d of lower front side.
1st refrigerant flow path 31a is connected with the 1st gateway of the side of the 2nd current divider 42a from the 1st fin 21d of lower front side via the 1st fin 21c of lower rearward side, and the 1st fin 21b of the 1st refrigerant flow path 31b on front side of top is connected with the 2nd gateway of the side of the 2nd current divider 42a via the 1st fin 21a on rear side of top.1st refrigerant flow path 31c is connected with the 1st gateway of the side of the 2nd current divider 42b from the 1st fin 21d of lower front side via the 1st fin 21c of lower rearward side, and the 1st fin 21b of the 1st refrigerant flow path 31d on front side of top is connected with the 2nd gateway of the side of the 2nd current divider 42b via the 1st fin 21a on rear side of top.1st refrigerant flow path 31e is connected with the 1st gateway of the side of the 2nd current divider 42c via the 1st fin 21a on rear side of top from the 1st fin 21b of the 1st fin 21d on front side of top of lower front side again, and the 1st fin 21a of the 1st fin 21b of the 1st refrigerant flow path 31f on front side of top on rear side of top is connected with the 2nd gateway of the side of the 2nd current divider 42c via the 1st fin 21c of lower rearward side again.
The heat conduction caliber of the 2nd refrigerant flow path 32a ~ 32c is mutually the same.Further, the 2nd fin 22A comprises the 2nd fin 22a of front side and the 2nd fin 22b of rear side.
Pass through in the 1st refrigerant flow path 31a, 31b and the cold-producing medium collaborated by the 2nd current divider 42a, flow to the 2nd refrigerant flow path 32a be connected with a gateway of the opposite side of the 2nd current divider 42a.Pass through in the 1st refrigerant flow path 31c, 31d and the cold-producing medium collaborated by the 2nd current divider 42b, flow to the 2nd refrigerant flow path 32b be connected with a gateway of the opposite side of the 2nd current divider 42b.Pass through in the 1st refrigerant flow path 31e, 31f and the cold-producing medium collaborated by the 2nd current divider 42c, flow to the 2nd refrigerant flow path 32c be connected with a gateway of the opposite side of the 2nd current divider 42c.
2nd refrigerant flow path 32a, 32b, 32c is connected with three gateways of the side of the 3rd current divider 43a via the 2nd fin 22a of front side from the 2nd fin 22b of rear side respectively according to path different from each other.
Pass through in 3 article of the 2nd refrigerant flow path 32a, 32b, 32c and the gas refrigerant GR collaborated by the 3rd current divider 43a, be supplied to refrigerant piping 14 from the gateway of the opposite side of the 3rd current divider 43a.
1st fin 21a, the 21b on top and the 1st fin 21c, 21d of bottom observes bending configuration from the side, but the 1st fin 21a, 21b, 21c, 21d and the 2nd fin 22a, 22b observes from the side and be combined into the shape of falling V.What what these the 1st fin 21a ~ 21d and the 1st refrigerant flow path 31a ~ 31f combined is hydraulic fluid side heat exchange department the 25,2nd fin 22a, 22b and the 2nd refrigerant flow path 32a ~ 32c combined is gas side heat exchange department 26.The room air carried by Air Blast fan 18 by hydraulic fluid side heat exchange department 25 and gas side heat exchange department 26, respectively in hydraulic fluid side heat exchange department 25 and gas side heat exchange department 26 is concurrently carried out heat exchange by the air separately by separately.
In addition, in the air heat exchanger 20A shown in Fig. 4, the pipe arrangement 19c of gateway, the hydraulic fluid side 19a be connected with the 1st current divider 41a passes through in bottom auxiliary fins 23b and top auxiliary fins 23a, and auxiliary heat exchanges thus.
(3-2-2) combination of 4 article of the 1st refrigerant flow path and 2 article of the 2nd refrigerant flow path
Fig. 5 represents the air heat exchanger 20B be made up of 4 article of the 1st refrigerant flow path 31g, 31h, 31i, 31j and 2 article of the 2nd refrigerant flow path 32d, 32e.That is, the 1st heat pipe group 31B is made up of 4 article of the 1st refrigerant flow path 31g ~ 31j, and the 2nd heat pipe group 32B is made up of 2 article of the 2nd refrigerant flow path 32d, 32e.In addition, in Figure 5, the part of dotted line represents the U-shaped pipe for making the flowing of cold-producing medium carry out U-shaped reversion.
Below, the structure of air heat exchanger 20B is described according to the flowing of cold-producing medium during refrigeration.The liquid refrigerant LR supplied from refrigerant piping 12 to be supplied to the gateway of the side of current divider 41b1 by the pipe arrangement 19c of gateway, hydraulic fluid side 19a.The 1st current divider 41b of this air heat exchanger 20B is made up of 3 current dividers 41b1,41b2,41b3.Two gateways of the opposite side of current divider 41b1 are connected with the gateway of the side of current divider 41b2,41b3, are split into refrigerant flow direction current divider 41b2,41b3 of two-way by this current divider 41b1.And, split into two-way by current divider 41b2,41b3 respectively, and flow to 2 article of the 1st refrigerant flow path 31g, 31i being connected with two gateways of the opposite side of current divider 41b2 and 2 article of the 1st refrigerant flow path 31h, 31j being connected with two gateways of the opposite side of current divider 41b3.Finally, refrigerant flow direction 4 article of the 1st refrigerant flow path 31g ~ 31j on four tunnels is split into by the 1st current divider 41b.
The heat conduction caliber of the 1st refrigerant flow path 31g ~ 31j is mutually the same.Further, the 1st fin 21B comprises the 1st fin 21c of the 1st fin 21a on rear side of top and lower rearward side.1st fin 21B does not comprise the 1st fin 21d of the 1st fin 21b on front side of top and lower front side, and this point is different from the 1st fin 21A of Fig. 4.
1st refrigerant flow path 31g is connected with the 1st gateway of the side of the 2nd current divider 42d from the 1st fin 21c of bottom via the 1st fin 21a on top, and the 1st refrigerant flow path 31h is connected with the 2nd gateway of the side of the 2nd current divider 42d via the 1st fin 21a on top.1st refrigerant flow path 31i is connected with the 1st gateway of the side of the 2nd current divider 42e from the 1st fin 21a on top via the 1st fin 21c of bottom, and the 1st refrigerant flow path 31j is also connected with the 2nd gateway of the side of the 2nd current divider 42e from the 1st fin 21a on top via the 1st fin 21c of bottom.
The heat conduction caliber of the 2nd refrigerant flow path 32d, 32e is mutually the same.Further, the 2nd fin 22B comprises the 2nd fin 22a.2nd fin 22B does not comprise the 2nd fin 22b, and this point is different from the 2nd fin 22A of Fig. 4.
Pass through in the 1st refrigerant flow path 31g, 31h and the cold-producing medium collaborated by the 2nd current divider 42d, flow to the 2nd refrigerant flow path 32d be connected with a gateway of the opposite side of the 2nd current divider 42d.Pass through in the 1st refrigerant flow path 31i, 31j and the cold-producing medium collaborated by the 2nd current divider 42e, flow to the 2nd refrigerant flow path 32e be connected with a gateway of the opposite side of the 2nd current divider 42e.
2nd refrigerant flow path 32d, 32e is connected with two gateways of the side of the 3rd current divider 43b via the 2nd fin 22a respectively according to path different from each other.
Pass through in 2 article of the 2nd refrigerant flow path 32d, 32e and the gas refrigerant GR collaborated by the 3rd current divider 43b, be supplied to refrigerant piping 14 from the gateway of the opposite side of the 3rd current divider 43b.
The 1st fin 21a on top and the 1st fin 21c of bottom observes bending configuration from the side, but the 1st fin 21a, 21c and the 2nd fin 22a observes from the side and be combined into the shape of falling V.What what these the 1st fin 21a, 21c and the 1st refrigerant flow path 31g ~ 31j combined is hydraulic fluid side heat exchange department the 25,2nd fin 22a and the 2nd refrigerant flow path 32d, 32e combined is gas side heat exchange department 26.The room air carried by Air Blast fan 18 by hydraulic fluid side heat exchange department 25 and gas side heat exchange department 26, respectively in hydraulic fluid side heat exchange department 25 and gas side heat exchange department 26 is concurrently carried out heat exchange by the air separately by separately.
In addition, in the air heat exchanger 20A shown in Fig. 5, the pipe arrangement 19c of gateway, the hydraulic fluid side 19a be connected with the 1st current divider 41a passes through in bottom auxiliary fins 23b and top auxiliary fins 23a, and auxiliary heat exchanges thus.
The heat conduction caliber of (4) the 1st refrigerant flow paths and the 2nd refrigerant flow path
Fig. 6 is the curve map that transverse axis represents the ratio (D2/D1) of gas side caliber D2 and hydraulic fluid side caliber D1, the longitudinal axis represents heat-exchange capacity.In the plot, through zero curve represent that using gas side caliber D2 be 6.35mm, hydraulic fluid side caliber D1 is 4mm time heat-exchange capacity used as benchmark (100%), air heat exchanger 20 as condenser time the relation of heat-exchange capacity and the ratio of heat conduction caliber.In addition, the relation of heat-exchange capacity when being used as evaporimeter according to said reference, air heat exchanger 20 and the ratio of heat conduction caliber is represented through the curve of △.In addition, the relation of the average ability of heat-exchange capacity when representing heat-exchange capacity when freezing according to said reference, air heat exchanger 20 through the curve of ■ and heat and the ratio of heat conduction caliber.
When using air heat exchanger 20 in indoor set 11, when heating, air heat exchanger 20 carries out work as condenser.In addition, when using air heat exchanger 20 in indoor set 11, when freezing, air heat exchanger 20 carries out work as evaporimeter.In addition, in air heat exchanger 20, the heat conduction caliber of hydraulic fluid side caliber D1 and the 1st refrigerant flow path 31a ~ 31j is suitable, and the heat conduction caliber of gas side caliber D2 and the 2nd refrigerant flow path 32a ~ 32e is suitable.
The air heat exchanger 20 being used to freeze and heat both sides obtains high heat-exchange capacity equally when freezing and when heating.Therefore, at this according to the peak value of heat-exchange capacity during refrigeration with the average ability of heat-exchange capacity when heating, if within 1%, then think and can both give play to high heat-exchange capacity when freezing and when heating, select the 2nd refrigerant flow path 32a ~ 32e of ratio (D2/D1) at the 1st heat pipe group 31 of 1.35 ~ 2.25 scopes, the 1st refrigerant flow path 31a ~ 31j of 31A, 31B and the 2nd heat pipe group 32,32A, 32B of heat conduction caliber.When the ratio of heat conduction caliber is D20/D10, the average ability of heat-exchange capacity during refrigeration and heat-exchange capacity when heating reaches peak value.
In addition, preferred air heat exchanger 20 is configured to, by the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e of the 2nd heat pipe group 32,32A, 32B divided by the value (D2/D1) that the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j of the 1st heat pipe group 31,31A, 31B obtains be greater than 1.5 and be less than 2.0 value.Such as, the air heat exchanger 20 that the heat conduction caliber D1 being configured to the 1st refrigerant flow path 31a ~ 31j is 4mm, the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e is 6.35mm meets this condition.
(5) feature
（5-1）
As mentioned above, 1st refrigerant flow path 31a ~ 31j of the air heat exchanger 20 shown in Fig. 3 is thinner, thus the use amount of cold-producing medium is cut down, and by value that the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e of the 2nd heat pipe group 32,32A, 32B obtains divided by the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j of the 1st heat pipe group 31,31A, 31B, be set to be greater than 1.35 and be less than 2.25 value, the average heat-exchange capacity that thus can keep higher refrigeration and heat.In addition, the quantity (2 × N article) of the 1st refrigerant flow path flowed in the 1st heat pipe group 31,31A, 31B is 2 times of the quantity (N article) of the 2nd refrigerant flow path flowed in the 2nd heat pipe group 32,32A, 32B, thus the connection of these refrigerant flow paths is easily carried out, and can cut down cost.
In addition, preferably by the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e of the 2nd heat pipe group 32,32A, 32B divided by the value that the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j of the 1st heat pipe group 31,31A, 31B obtains be greater than 1.5 and be less than 2.0 value.Because the Be very effective of average heat-exchange capacity keeping higher refrigeration and heat.
（5-2）
Air heat exchanger 20 makes the mix refrigerant of R32 or R32 flow through the 1st refrigerant flow path 31a ~ 31j and the 2nd refrigerant flow path 32a ~ 32e as the cold-producing medium of heat exchange.Like this, because cold-producing medium uses the mix refrigerant of R32 or R32, thus the impact of global warming is reduced, and higher heat exchanger effectiveness can be obtained.
（5-3）
One example of the 2nd current divider 42(the 2nd distributary division) 1 article of the 2nd refrigerant flow path in article the 1st refrigerant flow path of 2 in the 1st refrigerant flow path 31a ~ 31j and the 2nd refrigerant flow path 32a ~ 32e is coupled together, thus cost is low.By using this 2nd current divider 42, air heat exchanger 20 can be formed at low cost.
（5-4）
As shown in Figure 4 and Figure 5, the 1st fin 21A, 21B and the 2nd fin 22A, 22B is combined into the shape of falling V.Therefore, in indoor set 11 as shown in Figure 2, air heat exchanger 20A, 20B can be configured in less space.And, to flow the 1st fin 21A, 21B of heat exchange of the 2nd many heat pipe group 32 and the setting position of the 2nd fin 22A, 22B for carrying out flow the 1st many heat pipe group 31 and gas refrigerant of liquid refrigerant by distinguishing, making the setting easily carrying out heat exchange.Consequently, the use amount of cold-producing medium reduces, and heat-exchange capacity improves, and easily realizes the densification of air heat exchanger at low cost.
(6) variation
(6-1) variation 1A
In the above-described embodiment, be set to be greater than 1.5 about the value obtained divided by the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j by the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e and be less than the situation of the value of 2.0, the heat conduction caliber D1 listing the 1st refrigerant flow path 31a ~ 31j is 4mm, the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e is the example of the situation of 6.35mm.In addition, such as when the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j be 4mm, the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e be 7mm, also meet this condition.
In addition, be set to be greater than 1.35 about the value that the heat conduction caliber D2 of the 2nd refrigerant flow path 32a ~ 32e is obtained divided by the heat conduction caliber D1 of the 1st refrigerant flow path 31a ~ 31j and be less than the situation of the value of 2.25, such as, can enumerate that heat conduction caliber D1 is 5mm, heat conduction caliber D2 is the situation of 7mm.
(6-2) variation 1B
In the concrete example shown in above-mentioned Fig. 4 and Fig. 5, describe the pipe arrangement 19c be connected with the 1st current divider 41a, 41b carries out heat exchange structure by auxiliary fins 23a, 23b, but also can be configured in the pipe arrangement 19c be connected with the 1st current divider 41a, 41b, not carry out heat exchange.
Claims (7)
1. an air heat exchanger (20,20A, 20B), this air heat exchanger is configured between liquid line and flue, to carry out the heat exchange of cold-producing medium and air, described liquid line flows into for cold-producing medium when described air heat exchanger uses as evaporimeter, flow out for cold-producing medium when described air heat exchanger uses as condenser, described flue flows out for cold-producing medium when described air heat exchanger uses as evaporimeter, flow into for cold-producing medium when described air heat exchanger uses as condenser, described air heat exchanger has:
1st heat pipe group (31), it is made up of many articles of the 1st refrigerant flow paths (31a ~ 31j) being configured in described liquid line side; And
2nd heat pipe group (32), it is made up of many articles of the 2nd refrigerant flow paths (32a ~ 32e) being configured in described flue side,
The quantity of described 1st refrigerant flow path is 2 times of the quantity of described 2nd refrigerant flow path, two article of the 1st refrigerant flow path of described 1st heat pipe group is together connected to one article of the 2nd refrigerant flow path of described 2nd heat pipe group, by the heat conduction caliber of described 2nd refrigerant flow path divided by the value that the heat conduction caliber of described 1st refrigerant flow path obtains be greater than 1.35 and be less than 2.25 value.
2. air heat exchanger according to claim 1,
By the heat conduction caliber of described 2nd refrigerant flow path divided by the value that the heat conduction caliber of described 1st refrigerant flow path obtains be greater than 1.5 and be less than 2.0 value.
3. air heat exchanger according to claim 1,
The cold-producing medium of mix refrigerant as heat exchange of R32 or R32 is flow through in many articles of described 1st refrigerant flow paths and many articles of described 2nd refrigerant flow paths.
4. air heat exchanger according to claim 2,
The cold-producing medium of mix refrigerant as heat exchange of R32 or R32 is flow through in many articles of described 1st refrigerant flow paths and many articles of described 2nd refrigerant flow paths.
5. according to the air heat exchanger in Claims 1 to 4 described in any one,
The quantity of described 1st refrigerant flow path is 2 × N article, and wherein, N is natural number,
The quantity of described 2nd refrigerant flow path is N article,
Described air heat exchanger also has:
At least one the 1st distributary division (41,41a, 41b), the refrigerant branch flowed into from described liquid line is 2 × N part by it, to be assigned to 2 × N article of refrigerant flow path of described 1st heat pipe group;
N number of 2nd distributary division (42,42a ~ 42e), N article of refrigerant flow path of 2 × N article of refrigerant flow path of described 1st heat pipe group and described 2nd heat pipe group couples together by it; And
At least one the 3rd distributary division (43,43a, 43b), it makes N article of refrigerant flow path interflow of described 2nd heat pipe group and is connected with described flue.
6. according to the air heat exchanger in Claims 1 to 4 described in any one,
Described air heat exchanger also has multiple 1st fins (21,21A, 21B) of being combined into the shape of falling V and multiple 2nd fin (22,22A, 22B),
Multiple described 1st fin is installed in described 1st heat pipe group,
Multiple described 2nd fin is installed in described 2nd heat pipe group.
7. air heat exchanger according to claim 5,
Described air heat exchanger also has multiple 1st fins (21,21A, 21B) of being combined into the shape of falling V and multiple 2nd fin (22,22A, 22B),
Multiple described 1st fin is installed in described 1st heat pipe group,
Multiple described 2nd fin is installed in described 2nd heat pipe group.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012241279A JP5772787B2 (en) | 2012-10-31 | 2012-10-31 | Air heat exchanger |
| JP2012-241279 | 2012-10-31 |
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| Publication Number | Publication Date |
|---|---|
| CN103791604A CN103791604A (en) | 2014-05-14 |
| CN103791604B true CN103791604B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310511489.4A Active CN103791604B (en) | 2012-10-31 | 2013-10-25 | Air heat exchanger |
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| JP (1) | JP5772787B2 (en) |
| CN (1) | CN103791604B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155171A1 (en) * | 2015-04-03 | 2016-10-06 | 广东美的制冷设备有限公司 | Refrigeration device and heat exchanger assembly for same |
| CN106595020B (en) * | 2016-11-29 | 2022-11-01 | 广州华凌制冷设备有限公司 | Heat exchange fin, multi-fold heat exchanger and air conditioner |
| JP2018115831A (en) * | 2017-01-20 | 2018-07-26 | ダイキン工業株式会社 | Indoor unit |
| CN106871496B (en) * | 2017-04-01 | 2019-12-31 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air conditioner |
| JPWO2019030793A1 (en) | 2017-08-07 | 2020-05-28 | 三菱電機株式会社 | Heat exchanger, air conditioner indoor unit, and air conditioner |
| WO2020047927A1 (en) * | 2018-09-03 | 2020-03-12 | 广东美的制冷设备有限公司 | Heat exchanger assembly and air conditioner indoor unit |
| WO2020047926A1 (en) * | 2018-09-03 | 2020-03-12 | 广东美的制冷设备有限公司 | Heat exchanger assembly and indoor unit of air conditioner |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208836A (en) * | 1994-01-13 | 1995-08-11 | Mitsubishi Heavy Ind Ltd | Refrigerator |
| JPH1073394A (en) * | 1996-09-02 | 1998-03-17 | Daikin Ind Ltd | Refrigerating apparatus |
| JPH11257800A (en) * | 1998-03-09 | 1999-09-24 | Sanyo Electric Co Ltd | Heat exchanger and air conditioner with exchanger |
| JP2002168473A (en) * | 2000-11-30 | 2002-06-14 | Sanyo Electric Co Ltd | Heat-exchanging equipment and air conditioner having this heat exchanging equipment built-in |
| JP4073850B2 (en) * | 2003-09-11 | 2008-04-09 | シャープ株式会社 | Heat exchanger |
| KR20060087173A (en) * | 2005-01-28 | 2006-08-02 | 엘지전자 주식회사 | Heat exchanger for use in air conditioner |
| CN2909086Y (en) * | 2005-04-25 | 2007-06-06 | 海尔集团公司 | Indoor unit evaporimeter of hanging air conditioner |
| JP2007187414A (en) * | 2006-01-16 | 2007-07-26 | Sharp Corp | Indoor unit for air conditioner |
| JP5037400B2 (en) * | 2008-03-25 | 2012-09-26 | 東芝キヤリア株式会社 | Manufacturing method of heat exchanger and indoor unit of air conditioner |
| JP4715971B2 (en) * | 2009-11-04 | 2011-07-06 | ダイキン工業株式会社 | Heat exchanger and indoor unit equipped with the same |
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| Publication number | Publication date |
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| JP2014092295A (en) | 2014-05-19 |
| JP5772787B2 (en) | 2015-09-02 |
| CN103791604A (en) | 2014-05-14 |
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