CN103791604A - Air heat exchanger - Google Patents
Air heat exchanger Download PDFInfo
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- CN103791604A CN103791604A CN201310511489.4A CN201310511489A CN103791604A CN 103791604 A CN103791604 A CN 103791604A CN 201310511489 A CN201310511489 A CN 201310511489A CN 103791604 A CN103791604 A CN 103791604A
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Abstract
Provided is an air heat exchanger capable of reducing refrigerant usage amount and achieving a high capability and low cost. A first heat-conducting pipe group (31A) is formed by six first refrigerant flow paths (31a~31f) configured at a liquid pipe side. A second heat-conducting pipe group (32A) is formed by three second refrigerant flow paths (32a~32c) configured at an air pipe side. The number of the heat-conducting pipes of the first heat-conducting pipe group (31A) is configured to double the number of the heat-conducting pipes of the second heat-conducting pipe group (32A). In second diverters (42a~42c), one end of each of two first refrigerant flow paths are connected with the one end of a second refrigerant flow path. A value obtained from dividing the heat-conducting pipe diameter of the second refrigerant flow paths (32a~32c) by the heat-conducting pipe diameter of the first refrigerant flow paths (31a~31f) is more than 1.35 but less than 2.25.
Description
Technical field
The present invention relates to the air heat exchanger of the heat exchange of 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 in the time that cold-producing medium is greenhouse gases, cut down the object of the use amount of this cold-producing medium, sometimes the heat conduction caliber of air heat exchanger is designed carefullyyer.Like this in the situation that heat conduction caliber is attenuated, in the time increasing the number of path of the gas side that refrigerant density is less in order to suppress refrigerant pressure loss, can reduce because the reduction of velocity in pipes causes thermal conductivity, also easily produce cold-producing medium bias current, cause and be difficult to effectively use air heat exchanger.
Therefore, in order effectively to use air heat exchanger, as at patent documentation 1(TOHKEMY 2001-174047 communique) and patent documentation 2(TOHKEMY 2010-216718 communique) 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 diameter heat pipe thicker than hydraulic fluid side.
But, past is the heat conduction caliber differing from one another in the heat pipe of hydraulic fluid side and the heat pipe of gas side, and be the number of path differing from one another, thereby the pipe arrangement that the heat pipe thinner diameter of the heat pipe thicker diameter of gas side and hydraulic fluid side need to be coupled together.For example, as described in patent documentation 1, at this interflow and the pipe arrangement part of shunting use throttling arrangement be set carry out again heat dehumidifying.Thisly carry out the interflow of cold-producing medium for the Path Connection of varying number is got up and the pipe arrangement of shunting is expensive parts, cause air heat exchanger to become expensive.
[prior art document]
[patent documentation]
[patent documentation 1] TOHKEMY 2001-174047 communique
[patent documentation 2] TOHKEMY 2010-216718 communique
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 in the time that described air heat exchanger uses as evaporimeter, in the time that using as condenser, described air heat exchanger flows out for cold-producing medium, described flue flows out for cold-producing medium in the time that described air heat exchanger uses as evaporimeter, in the time that using as condenser, described air heat exchanger flows into for cold-producing medium, described air heat exchanger has: the 1st heat pipe group, it is made up of many articles of the 1st refrigerant flow paths that are configured in liquid line side, and the 2nd heat pipe group, it is made up of many articles of the 2nd refrigerant flow paths that are configured in flue side, the quantity of the 1st refrigerant flow path is 2 times of 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, and the value that the heat conduction caliber of the 2nd refrigerant flow path is obtained divided by the heat conduction caliber of the 1st refrigerant flow path is to be greater than 1.35 and be less than 2.25 value.
According to first aspect, if the value that the heat conduction caliber of the 2nd refrigerant flow path is obtained divided by the heat conduction caliber of the 1st refrigerant flow path is to be greater than 1.35 and be less than 2.25 value, can keep higher refrigeration and the average heat-exchange capacity heating, and two article of the 1st refrigerant flow path easily carry out with being connected also of one article of the 2nd refrigerant flow path, thereby realize the reduction of cost.
The air heat exchanger of a second aspect of the present invention is according to the air heat exchanger described in first aspect, and the value that the heat conduction caliber of the 2nd refrigerant flow path is obtained divided by the heat conduction caliber of the 1st refrigerant flow path is to be greater than 1.5 and be less than 2.0 value.
According to second aspect, the effect of the refrigeration that air heat exchanger maintenance is higher and the average heat-exchange capacity heating is remarkable.
The air heat exchanger of a third aspect of the present invention be according to first or second aspect described in air heat exchanger, in many articles of the 1st refrigerant flow paths and many articles of the 2nd refrigerant flow paths, flow through the cold-producing medium that the mix refrigerant of R32 or R32 is used as heat exchange.
According to the third aspect, because cold-producing medium uses the mix refrigerant of R32 or R32, thereby 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 described in any one aspect in first～third 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 cold-producing medium flowing into from liquid line is branched into 2 × N part by it, to be assigned in 2 × N article of refrigerant flow path of the 1st heat pipe group; N the 2nd distributary division, its N article of refrigerant flow path by 2 × N of the 1st heat pipe group article refrigerant flow path and the 2nd heat pipe group couples together; 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, can by the 2nd distributary division, two article of the 1st refrigerant flow path be connected in 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 described in any one aspect in first～fourth aspect, described air heat exchanger also has multiple the 1st fins and multiple the 2nd fin that are combined into the word of falling V shape, multiple the 1st fins are installed in the 1st heat pipe group, and multiple the 2nd fins are installed in the 2nd heat pipe group.
According to the 5th aspect, multiple the 1st fins and multiple the 2nd fin are the word of falling V shape, thereby can in less space, configure air heat exchanger.And, can distinguish the 1st fin of the heat exchange for carrying out mobile the 1st many heat pipe group of liquid refrigerant and mobile the 2nd many heat pipe group of gas refrigerant and the setting position of the 2nd fin, thereby easily carry out the setting that heat exchange is used.
Invention effect
Air heat exchanger according to a first aspect of the invention, attenuates by the heat conduction caliber that makes the 1st refrigerant flow path, and use amount and the high air heat exchanger of heat-exchange capacity of cutting down cold-producing medium can be provided at low cost.
Air heat exchanger according to a second aspect of the invention, can provide the effect of the air heat exchanger that heat-exchange capacity is high remarkable at low cost.
Air heat exchanger according to a third aspect of the invention we, can utilize the less cold-producing medium of the impact of global warming is obtained to higher efficiency.
Air heat exchanger according to a forth aspect of the invention, can realize being connected 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 at low cost the densification of air heat exchanger.
Accompanying drawing explanation
Fig. 1 is the loop diagram of the air conditioner of the air heat exchanger that relates to of embodiment of application.
Fig. 2 is the cutaway view of indoor set.
Fig. 3 is the schematic diagram of the structure for air heat exchanger is described.
Fig. 4 is the schematic diagram of an example of the concrete structure for air heat exchanger is described.
Fig. 5 is another routine schematic diagram of the concrete structure for air heat exchanger is described.
Fig. 6 represents the heat conduction caliber of the 1st refrigerant flow path and the curve map of 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.
The specific embodiment
(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 and is arranged on the indoor set 11 of indoor wall etc. and is arranged on outdoor off-premises station 13.Between these indoor sets 11 and off-premises station 13, be connected by set connecting pipings (not shown), this set connecting pipings set refrigerant piping 12,14, transmission line (not shown) and order wire (not shown) etc.
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 draught excluder 138 of off-premises station 13.Via filter 136 and electric expansion valve 135, utilize the refrigerant piping of off-premises station 13 inside to be connected to gateway, the hydraulic fluid side 134a of outdoor heat converter 134 from liquid draught excluder 137.The 2nd port of 134b Yu Si road, the gas side gateway transfer valve 132 of this outdoor heat converter 134 connects.And the 4th port of No. four transfer valves 132 is connected with gas draught excluder 138.
In addition, the 1st port of No. four transfer valves 132 is connected with the ejiction opening of compressor 131.The 3rd port is connected with the suction inlet of compressor 131 via reservoir 133.In the situation that heating in air conditioner 10, Gai Si road transfer valve 132 is switched to the connection status representing with 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, in the situation that freezing, No. four transfer valves 132 are switched to the connection status dotting, 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 thus refrigerant loop.In this refrigerant loop, in the time heating, cold-producing medium again turns back to 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 draught excluder 138, No. four transfer valves 132 and the 3rd port and reservoir 133 successively from compressor 131.In addition, in the refrigerant loop in when refrigeration, cold-producing medium again turns back to compressor 131 through the 2nd port of the 1st port of No. four transfer valves 132 and the 4th port, gas draught excluder 138, air heat exchanger 20, liquid draught excluder 137, filter 136, electric expansion valve 135, outdoor heat converter 134, No. four transfer valves 132 and the 3rd port and reservoir 133 successively from compressor 131.
The cold-producing medium using 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 of R410A containing in R32 more than 50 % by weight etc.
(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 Blast fan 18 is configured in by the 1st fin 21 of front face side with in the region that the 2nd fin 22 of side clips below.Air Blast fan 18 is cross flow fans, in the direction of extending in the 1st heat pipe group 31 and the 2nd heat pipe group 32 of air heat exchanger 20, extends more longways.The same length of the length of this Air Blast fan 18 and air heat exchanger 20.
The room air sucking from the suction inlet 51 of housing 50 is removed dust by air cleaner 61, between the 1st fin 21 of air heat exchanger 20 and the 2nd fin 22 and the 1st heat pipe group 31 and the 2nd heat pipe group 32, passes downwards.Now, the room air that utilizes the 1st fin 21 and the 2nd fin 22 and the 1st heat pipe group 31 and the 2nd heat pipe group 32 to suck the suction inlet 51 from housing 50 carries out heat exchange.Air Blast fan 18 is carried room air with the suction inlet 51 from housing 50 through air heat exchanger 20 mode downward.And the air of being carried by Air Blast fan 18 is blown out from blow-off outlet 52.The air blowing out from blow-off outlet 52 is to have been adjusted the tempered air of temperature and humidity by air heat exchanger 20, and utilizes blow direction adjusting blades 62,63,64 to regulate the direction blowing out.
(3) structure of air heat exchanger
(3-1) general structure of air heat exchanger
In Fig. 3, schematically show the general structure of air heat exchanger 20 and the refrigerant piping 12,14 being connected with air heat exchanger 20.Flowing of cold-producing medium when arrow shown in Fig. 3 represents to freeze.Refrigerant piping 12 is main liquid lines of 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), an example of the 1st heat pipe group 31, hydraulic fluid side heat exchange department 25, N the 2nd current divider being formed by the 1st refrigerant flow path of 2 × N article (N is natural number), the 2nd heat pipe group 32 being formed by N article of the 2nd refrigerant flow path, gas side heat exchange department 26, the 3rd current divider 43(the 3rd distributary division).
A gateway of one side of main refrigerant flow direction the 1st current divider 41 being made up of liquid refrigerant flowing in refrigerant piping 12, the 1st refrigerant flow path of 2 × N of the 1st heat pipe group 31 article is connected with 2 × N 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 a 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.The N of the 2nd heat pipe group 32 article of the 2nd refrigerant flow path is connected with N gateway of a side of the 3rd current divider 43 respectively, a gateway of the opposite side of main refrigerant flow direction the 3rd current divider 43 being made up of gas refrigerant flowing in refrigerant piping 14.
Hydraulic fluid side heat exchange department 25 mainly by the 1st heat pipe group 31 and multiple the 1st fin 21(with reference to Fig. 2) form, be mainly the part of carrying out heat exchange between the cold-producing medium that comprises many liquid refrigerants and air.In addition, gas side heat exchange department 26 mainly by the 2nd heat pipe group 32 and multiple the 2nd fin 22(with reference to Fig. 2) form, be mainly the part of carrying out heat exchange between the cold-producing medium that comprises many gas refrigerants and air.
(3-2) concrete structure of air heat exchanger
(3-2-1) combination of 6 article of the 1st refrigerant flow path and 3 articles of the 2nd refrigerant flow paths
Fig. 4 represents the air heat exchanger 20A being 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 Fig. 4, the part of dotted line represents the mobile U word pipe that carries out U-shaped reversion for making cold-producing medium.
The mobile structure that air heat exchanger 20A is described of the cold-producing medium during below, according to refrigeration.The liquid refrigerant LR supplying with from refrigerant piping 12 is supplied to the gateway of a side of the 1st current divider 41a by the pipe arrangement 19c of gateway, hydraulic fluid side 19a.In the 1st current divider 41a, cold-producing medium is diverted in 6 article of the 1st refrigerant flow path 31a～31f being connected with 6 gateways of opposite side.
The heat conduction caliber of the 1st refrigerant flow path 31a～31f is mutually the same.And the 1st fin 21A comprises the 1st fin 21a of top rear side, the 1st fin 21b, the 1st fin 21c of bottom rear side and the 1st fin 21d of lower front side of front side, top.
The 1st refrigerant flow path 31a is connected via the 1st gateway of the 1st fin 21c of bottom rear side and a side of the 2nd current divider 42a from the 1st fin 21d of lower front side, and the 1st refrigerant flow path 31b is connected via the 2nd gateway of the 1st fin 21a of top rear side and a side of the 2nd current divider 42a from the 1st fin 21b of front side, top.The 1st refrigerant flow path 31c is connected via the 1st gateway of the 1st fin 21c of bottom rear side and a side of the 2nd current divider 42b from the 1st fin 21d of lower front side, and the 1st refrigerant flow path 31d is connected via the 2nd gateway of the 1st fin 21a of top rear side and a side of the 2nd current divider 42b from the 1st fin 21b of front side, top.The 1st refrigerant flow path 31e is connected via the 1st gateway of the 1st fin 21a of top rear side and a side of the 2nd current divider 42c through the 1st fin 21b of front side, top from the 1st fin 21d of lower front side again, and the 1st refrigerant flow path 31f is connected via the 2nd gateway of the 1st fin 21c of bottom rear side and a side of the 2nd current divider 42c through the 1st fin 21a of top rear side from the 1st fin 21b of front side, top again.
The heat conduction caliber of the 2nd refrigerant flow path 32a～32c is mutually the same.And the 2nd fin 22A comprises the 2nd fin 22a of front side and the 2nd fin 22b of rear side.
The cold-producing medium that passes through in the 1st refrigerant flow path 31a, 31b and collaborated by the 2nd current divider 42a, the 2nd refrigerant flow path 32a that the flow direction is connected with a gateway of the opposite side of the 2nd current divider 42a.The cold-producing medium that passes through in the 1st refrigerant flow path 31c, 31d and collaborated by the 2nd current divider 42b, the 2nd refrigerant flow path 32b that the flow direction is connected with a gateway of the opposite side of the 2nd current divider 42b.The cold-producing medium that passes through in the 1st refrigerant flow path 31e, 31f and collaborated by the 2nd current divider 42c, the 2nd refrigerant flow path 32c that the flow direction is connected with a gateway of the opposite side of the 2nd current divider 42c.
The 2nd refrigerant flow path 32a, 32b, 32c are connected with three gateways of a side of the 3rd current divider 43a respectively via the 2nd fin 22a of front side from the 2nd fin 22b of rear side according to the path differing from one another.
In 3 article of the 2nd refrigerant flow path 32a, 32b, 32c by and by the gas refrigerant GR at the 3rd current divider 43a interflow, be supplied to refrigerant piping 14 from the gateway of the opposite side of the 3rd current divider 43a.
The 1st fin 21a, the 21b on top and the 1st fin 21c, the 21d of bottom observe bending configuration from the side, but the 1st fin 21a, 21b, 21c, 21d and the 2nd fin 22a, 22b observe from the side and be combined into the word of falling V shape.What what these the 1st fin 21a～21d and the 1st refrigerant flow path 31a～31f combined is hydraulic fluid side heat exchange department 25, the 2 fin 22a, 22b and the 2nd refrigerant flow path 32a～32c combined is gas side heat exchange department 26.The room air of being 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 after separating 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 being connected with the 1st current divider 41a passes through in bottom auxiliary fins 23b and top auxiliary fins 23a, auxiliary heat exchange thus.
(3-2-2) combination of 4 article of the 1st refrigerant flow path and 2 articles of the 2nd refrigerant flow paths
Fig. 5 represents the air heat exchanger 20B being 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 Fig. 5, the part of dotted line represents the mobile U word pipe that carries out U-shaped reversion for making cold-producing medium.
The mobile structure that air heat exchanger 20B is described of the cold-producing medium during below, according to refrigeration.The liquid refrigerant LR supplying with from refrigerant piping 12 is supplied to the gateway of a 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 divider 41b1,41b2,41b3.Two gateways of the opposite side of current divider 41b1 are connected with the gateway of a side of current divider 41b2,41b3, are split into refrigerant flow direction current divider 41b2, the 41b3 of two-way by this current divider 41b1.And, split into two-way by current divider 41b2,41b3 respectively, and the flow direction 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, split into 4 article of the 1st refrigerant flow path 31g～31j of refrigerant flow direction on four tunnels by the 1st current divider 41b.
The heat conduction caliber of the 1st refrigerant flow path 31g～31j is mutually the same.And the 1st fin 21B comprises the 1st fin 21a of top rear side and the 1st fin 21c of bottom rear side.The 1st fin 21B does not comprise the 1st fin 21b of front side, top and the 1st fin 21d of lower front side, and this point is different from the 1st fin 21A of Fig. 4.
The 1st refrigerant flow path 31g is connected via the 1st gateway of the 1st fin 21a on top and a side of the 2nd current divider 42d from the 1st fin 21c of bottom, and the 1st refrigerant flow path 31h is connected via the 2nd gateway of the 1st fin 21a on top and a side of the 2nd current divider 42d.The 1st refrigerant flow path 31i is connected via the 1st gateway of the 1st fin 21c of bottom and a side of the 2nd current divider 42e from the 1st fin 21a on top, and the 1st refrigerant flow path 31j is also connected via the 2nd gateway of the 1st fin 21c of bottom and a side of the 2nd current divider 42e from the 1st fin 21a on top.
The heat conduction caliber of the 2nd refrigerant flow path 32d, 32e is mutually the same.And the 2nd fin 22B comprises the 2nd fin 22a.The 2nd fin 22B does not comprise the 2nd fin 22b, and this point is different from the 2nd fin 22A of Fig. 4.
The cold-producing medium that passes through in the 1st refrigerant flow path 31g, 31h and collaborated by the 2nd current divider 42d, the 2nd refrigerant flow path 32d that the flow direction is connected with a gateway of the opposite side of the 2nd current divider 42d.The cold-producing medium that passes through in the 1st refrigerant flow path 31i, 31j and collaborated by the 2nd current divider 42e, the 2nd refrigerant flow path 32e that the flow direction is connected with a gateway of the opposite side of the 2nd current divider 42e.
The 2nd refrigerant flow path 32d, 32e are connected with two gateways of a side of the 3rd current divider 43b respectively via the 2nd fin 22a according to the path differing from one another.
In 2 article of the 2nd refrigerant flow path 32d, 32e by and by the gas refrigerant GR at the 3rd current divider 43b interflow, 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 observe bending configuration from the side, but the 1st fin 21a, 21c and the 2nd fin 22a observe from the side and be combined into the word of falling V shape.What what these the 1st fin 21a, 21c and the 1st refrigerant flow path 31g～31j combined is hydraulic fluid side heat exchange department 25, the 2 fin 22a and the 2nd refrigerant flow path 32d, 32e combined is gas side heat exchange department 26.The room air of being 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 after separating 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 being connected with the 1st current divider 41a passes through in bottom auxiliary fins 23b and top auxiliary fins 23a, auxiliary heat exchange thus.
The heat conduction caliber of (4) the 1st refrigerant flow paths and the 2nd refrigerant flow path
Fig. 6 is that transverse axis represents gas side caliber D2 and the ratio (D2/D1) of hydraulic fluid side caliber D1, the curve map that the longitudinal axis represents heat-exchange capacity.In this curve map, the relation through zero the curve heat-exchange capacity that to represent gas side caliber D2 be 6.35mm, the hydraulic fluid side caliber D1 heat-exchange capacity while being 4mm when benchmark (100%), air heat exchanger 20 are used as condenser and use with the ratio of heat conduction caliber.In addition, the heat-exchange capacity while representing to be used as evaporimeter use according to said reference, air heat exchanger 20 through the curve of △ and the relation of the ratio of heat conduction caliber.In addition, the heat-exchange capacity while representing to freeze according to said reference, air heat exchanger 20 through the curve of ■ and the average ability of heat-exchange capacity while heating and the relation of the ratio of heat conduction caliber.
When use air heat exchanger 20 in indoor set 11 time, in the time heating, air heat exchanger 20 carries out work as condenser.In addition, when use air heat exchanger 20 in indoor set 11 time, in the time of refrigeration, 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 that is used to refrigeration and heat both sides is obtained high heat-exchange capacity equally in the time of refrigeration and while heating.Therefore, the peak value of the average ability of the heat-exchange capacity at this according to the heat-exchange capacity in when refrigeration and while heating, if in 1%, when thinking in when refrigeration and heating, can both give play to high heat-exchange capacity, select the 2nd refrigerant flow path 32a～32e of the ratio (D2/D1) of heat conduction caliber at the 1st refrigerant flow path 31a～31j of the 1st heat pipe group 31 of 1.35～2.25 scopes, 31A, 31B and the 2nd heat pipe group 32,32A, 32B.In the time that the ratio of heat conduction caliber is D20/D10, the average ability of heat-exchange capacity when refrigeration and the heat-exchange capacity while heating reaches peak value.
In addition, preferably air heat exchanger 20 is configured to, and the value (D2/D1) that the heat conduction caliber D2 of the 2nd refrigerant flow path 32a～32e of the 2nd heat pipe group 32,32A, 32B is obtained divided by the heat conduction caliber D1 of the 1st refrigerant flow path 31a～31j of the 1st heat pipe group 31,31A, 31B is to be greater than 1.5 and be less than 2.0 value.For example, the heat conduction caliber D1 that is configured to the 1st refrigerant flow path 31a～31j is that the air heat exchanger 20 that the heat conduction caliber D2 of 4mm, the 2nd refrigerant flow path 32a～32e is 6.35mm meets this condition.
(5) feature
（5-1）
As mentioned above, the 1st refrigerant flow path 31a～31j of the air heat exchanger 20 shown in Fig. 3 is thinner, thereby the use amount of cold-producing medium is cut down, and the value that the heat conduction caliber D2 of the 2nd refrigerant flow path 32a～32e of the 2nd heat pipe group 32,32A, 32B is obtained 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, thereby the average heat-exchange capacity that can keep higher refrigeration and heat.In addition, the quantity (2 × N article) of the 1st refrigerant flow path flowing in the 1st heat pipe group 31,31A, 31B is 2 times of quantity (N article) of the 2nd refrigerant flow path that flows in the 2nd heat pipe group 32,32A, 32B, thereby the connection of these refrigerant flow paths easily carries out, can cutting down cost.
In addition, the value preferably the heat conduction caliber D2 of the 2nd refrigerant flow path 32a～32e of the 2nd heat pipe group 32,32A, 32B being obtained divided by the heat conduction caliber D1 of the 1st refrigerant flow path 31a～31j of the 1st heat pipe group 31,31A, 31B is to be greater than 1.5 and be less than 2.0 value.Because the effect of the average heat-exchange capacity that keeps higher refrigeration and heat is remarkable.
（5-2）
The cold-producing medium that air heat exchanger 20 makes the mix refrigerant of R32 or R32 use as heat exchange flows through the 1st refrigerant flow path 31a～31j and the 2nd refrigerant flow path 32a～32e.Like this, because cold-producing medium uses the mix refrigerant of R32 or R32, thereby the impact of global warming is reduced, and can obtain higher heat exchanger effectiveness.
（5-3）
One example of the 2nd current divider 42(the 2nd distributary division) 1 article of the 2nd refrigerant flow path in 2 article of the 1st refrigerant flow path in the 1st refrigerant flow path 31a～31j and the 2nd refrigerant flow path 32a～32e coupled together, thereby cost is low.By using this 2nd current divider 42, can form at low cost air heat exchanger 20.
（5-4）
As shown in Figure 4 and Figure 5, the 1st fin 21A, 21B and the 2nd fin 22A, 22B are combined into the word of falling V shape.Therefore,, in indoor set 11 as shown in Figure 2, can in less space, configure air heat exchanger 20A, 20B.And, the 1st fin 21A, the 21B of heat exchange and the setting position of the 2nd fin 22A, 22B that are used for carrying out mobile the 1st many heat pipe group 31 of liquid refrigerant and mobile the 2nd many heat pipe group 32 of gas refrigerant by differentiation, make easily to carry out the setting that heat exchange is used.Consequently, the use amount of cold-producing medium reduces, and heat-exchange capacity improves, and easily realizes at low cost the densification of air heat exchanger.
(6) variation
(6-1) variation 1A
In the above-described embodiment, be set to be greater than 1.5 and be less than the situation of 2.0 value 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, the heat conduction caliber D1 that has enumerated the 1st refrigerant flow path 31a～31j is the example of the heat conduction caliber D2 of 4mm, the 2nd refrigerant flow path 32a～32e situation that is 6.35mm.In addition, the heat conduction caliber D2 that is for example 4mm, the 2nd refrigerant flow path 32a～32e at the heat conduction caliber D1 of the 1st refrigerant flow path 31a～31j is 7mm, also meets this condition.
In addition, be set to be greater than 1.35 and be less than the situation of 2.25 value 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, for example can enumerate heat conduction caliber D1 is the situation that 5mm, heat conduction caliber D2 are 7mm.
(6-2) variation 1B
In the concrete example shown in above-mentioned Fig. 4 and Fig. 5, illustrate that the pipe arrangement 19c being connected with the 1st current divider 41a, 41b carries out the structure of heat exchange by auxiliary fins 23a, 23b, in the pipe arrangement 19c being connected with the 1st current divider 41a, 41b, carried out heat exchange but also can not be configured to.
Claims (5)
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 in the time that described air heat exchanger uses as evaporimeter, in the time that using as condenser, described air heat exchanger flows out for cold-producing medium, described flue flows out for cold-producing medium in the time that described air heat exchanger uses as evaporimeter, in the time that described air heat exchanger uses as condenser, flow into for cold-producing medium, described air heat exchanger has:
The 1st heat pipe group (31), it is made up of many articles of the 1st refrigerant flow paths (31a～31j) that are configured in described liquid line side; And
The 2nd heat pipe group (32), it is made up of many articles of the 2nd refrigerant flow paths (32a～32e) that are configured in described flue side,
The quantity of described the 1st refrigerant flow path is 2 times of quantity of described the 2nd refrigerant flow path, two article of the 1st refrigerant flow path of described the 1st heat pipe group is together connected to one article of the 2nd refrigerant flow path of described the 2nd heat pipe group, and the value that the heat conduction caliber of described the 2nd refrigerant flow path is obtained divided by the heat conduction caliber of described the 1st refrigerant flow path is to be greater than 1.35 and be less than 2.25 value.
2. air heat exchanger according to claim 1,
The value that the heat conduction caliber of described the 2nd refrigerant flow path is obtained divided by the heat conduction caliber of described the 1st refrigerant flow path is to be greater than 1.5 and be less than 2.0 value.
3. air heat exchanger according to claim 1 and 2,
In many articles of described the 1st refrigerant flow paths and many articles of described the 2nd refrigerant flow paths, flow through the cold-producing medium that the mix refrigerant of R32 or R32 is used as heat exchange.
4. according to the air heat exchanger described in any one in claim 1～3,
The quantity of described the 1st refrigerant flow path is 2 × N article, and wherein, N is natural number,
The quantity of described the 2nd refrigerant flow path is N article,
Described air heat exchanger also has:
At least one the 1st distributary division (41,41a, 41b), the cold-producing medium flowing into from liquid line is branched into 2 × N part by it, to be assigned to 2 × N article of refrigerant flow path of described the 1st heat pipe group;
N the 2nd distributary division (42,42a～42e), its N article of refrigerant flow path by 2 × N of described the 1st heat pipe group article refrigerant flow path and described the 2nd heat pipe group couples together; And
At least one the 3rd distributary division (43,43a, 43b), it makes N article of refrigerant flow path interflow of described the 2nd heat pipe group and is connected with flue.
5. according to the air heat exchanger described in any one in claim 1～4,
Described air heat exchanger also has and is combined into multiple the 1st fins (21,21A, 21B) of the word of falling V shape and multiple the 2nd fin (22,22A, 22B),
Multiple described the 1st fins are installed in described the 1st heat pipe group,
Multiple described the 2nd fins are installed in described the 2nd heat pipe group.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-241279 | 2012-10-31 | ||
| JP2012241279A JP5772787B2 (en) | 2012-10-31 | 2012-10-31 | Air heat exchanger |
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| Publication Number | Publication Date |
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| CN103791604A true CN103791604A (en) | 2014-05-14 |
| CN103791604B CN103791604B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP (1) | JP5772787B2 (en) |
| CN (1) | CN103791604B (en) |
Cited By (5)
| 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 |
| CN106871496A (en) * | 2017-04-01 | 2017-06-20 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air-conditioner |
| WO2018098989A1 (en) * | 2016-11-29 | 2018-06-07 | 美的集团武汉制冷设备有限公司 | Heat exchanging fin, multi-bend heat exchanger, and air conditioner |
| CN110234934A (en) * | 2017-01-20 | 2019-09-13 | 大金工业株式会社 | Indoor unit |
| CN110892211A (en) * | 2017-08-07 | 2020-03-17 | 三菱电机株式会社 | Heat exchanger, indoor unit of air conditioner, and air conditioner |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| WO2018098989A1 (en) * | 2016-11-29 | 2018-06-07 | 美的集团武汉制冷设备有限公司 | Heat exchanging fin, multi-bend heat exchanger, and air conditioner |
| CN110234934A (en) * | 2017-01-20 | 2019-09-13 | 大金工业株式会社 | Indoor unit |
| CN106871496A (en) * | 2017-04-01 | 2017-06-20 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air-conditioner |
| 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 |
| CN110892211A (en) * | 2017-08-07 | 2020-03-17 | 三菱电机株式会社 | Heat exchanger, indoor unit of air conditioner, and air conditioner |
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| CN110892211B (en) * | 2017-08-07 | 2021-12-28 | 三菱电机株式会社 | Heat exchanger, indoor unit of air conditioner, and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014092295A (en) | 2014-05-19 |
| JP5772787B2 (en) | 2015-09-02 |
| CN103791604B (en) | 2016-03-30 |
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