CN204806926U - Heat transfer device and heat pump system who has it - Google Patents
Heat transfer device and heat pump system who has it Download PDFInfo
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- CN204806926U CN204806926U CN201520345957.XU CN201520345957U CN204806926U CN 204806926 U CN204806926 U CN 204806926U CN 201520345957 U CN201520345957 U CN 201520345957U CN 204806926 U CN204806926 U CN 204806926U
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Abstract
The utility model discloses a heat transfer device and have its heat pump system, heat transfer device includes: first heat exchanger, second heat exchanger, communicating pipe, a distributor, the 2nd distributor, first heat exchanger and second heat exchanger all include two pressure manifolds, connect at the flat pipe between two pressure manifolds and establish the fin between adjacent flat pipe, all are equipped with the refrigerant mouth on every pressure manifold, and the first end of communicating pipe is continuous with the refrigerant mouth on the second pressure manifold of first heat exchanger and second end communicating pipe is continuous with the refrigerant mouth of the third pressure manifold of second heat exchanger, in a distributor inserted first pressure manifold, a distributor had first dispensing orifice and the first opening continuous with first refrigerant mouth, in the 2nd distributor inserted the third pressure manifold, the 2nd distributor had second dispensing orifice and the second opening continuous with third refrigerant mouth. It is longer that this heat transfer device frosts the route, and heat transfer performance is high.
Description
Technical field
The utility model relates to technical field of heat exchange, is specifically related to a kind of heat-exchanger rig and has its heat pump.
Background technology
In correlation technique, widely used air cooling business air conditioner unit adopts multiple unit combination to form usually, and each unit at least comprises the heat exchanger of two panels parallel connection.When running under the outdoor conditions of air-conditioner set low temperature and high relative humidity in the winter time, outdoor unit heat exchanger can frosting.Along with the progressive additive of frost layer, the gap can passed through for air between fin becomes more and more less, until blocking.Along with the increase of heat pamp, frosting area increases, and namely fin is become large by the ratio that frost layer blocks, and the exchange capability of heat decay of heat exchanger becomes serious.Especially, for micro-channel heat exchanger, due to its design feature, from bottom to top, frost layer is upwards climbed in frosting, and bottom frost layer is the thickest.The frosting area simultaneous growth of heat exchanger in parallel, the longest total frosting path is namely consistent with the height of monolithic heat exchanger.When the area of frost layer blocking is excessive, heat exchanger can be caused can not to reach designed capacity level.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of heat-exchanger rig, the frosting path of this heat-exchanger rig is longer, and frosting area is little, and heat exchange property improves.
Another object of the present utility model is to propose a kind of heat pump with above-mentioned heat-exchanger rig.
According to a kind of heat-exchanger rig of the utility model first aspect embodiment, it is characterized in that, comprise: First Heat Exchanger, described First Heat Exchanger comprises the first header, the second header, the first fin of being connected to the first flat tube between described first header and the second header and being located between adjacent first flat tube, described first header is provided with the first cold-producing medium mouth, and described second header is provided with second refrigerant mouth; Second heat exchanger, described second heat exchanger comprises the 3rd header, the 4th header, the second fin of being connected to the second flat tube between described 3rd header and the 4th header and being located between adjacent second flat tube, described 3rd header is provided with the 3rd cold-producing medium mouth, and described 4th header is provided with the 4th cold-producing medium mouth; Communicating pipe, the first end of described communicating pipe is connected with described second refrigerant mouth and second end of described communicating pipe is connected with described 3rd cold-producing medium mouth; First distributor, described first distributor is inserted in described first header, the first opening that described first distributor has the first dispensing orifice and is connected with described first cold-producing medium mouth; Second distributor, described second distributor is inserted in described 3rd header, the second opening that described second distributor has the second dispensing orifice and is connected with described 3rd cold-producing medium mouth.
According to the heat-exchanger rig of the utility model embodiment, frosting path is longer, and frosting area is little, and heat exchange property improves.
Preferably, also comprise the first transfer valve, described first transfer valve has the first to the 3rd valve port, first valve port of described first transfer valve is connected with described second refrigerant mouth, second valve port of described first transfer valve is connected with described first cold-producing medium mouth, and the 3rd valve port of described first transfer valve is connected with described 3rd cold-producing medium mouth.
Preferably, also comprise the second transfer valve, described second transfer valve has the first to the 3rd valve port, and the first valve port of described second transfer valve is connected with described second refrigerant mouth, and the 3rd valve port of described second transfer valve is connected with described first cold-producing medium mouth.
Preferably, described first cold-producing medium mouth is for being respectively formed at two of the two ends of described first header, described second refrigerant mouth is for being respectively formed at two of the two ends of described second header, 3rd valve port of described second transfer valve is connected with a first cold-producing medium mouth, second valve port of described first transfer valve is connected with another the first cold-producing medium mouth, first valve port of described second transfer valve is connected with a second refrigerant mouth, and the first valve port of described first transfer valve is connected with another second refrigerant mouth.
Preferably, described first transfer valve and described second transfer valve are three-way solenoid valve.
Preferably, described first cold-producing medium mouth and described first opening are same opening, and described 3rd cold-producing medium mouth and described second opening are same opening.
Preferably, described first distributor is the first distribution plate, described first distribution plate is located in described first header so that the inner chamber of described first header is divided into the first distribution cavity and the second distribution cavity, described first distribution cavity is with described first open communication and be communicated with described second distribution cavity by described first dispensing orifice, described second distribution cavity is communicated with described first flat tube, described second distributor is the second distribution plate, described second distribution plate is located in described 3rd header so that the inner chamber of described 3rd header is divided into the 3rd distribution cavity and the 4th distribution cavity, described 3rd distribution cavity is with described second open communication and be communicated with described 4th distribution cavity by described second dispensing orifice, described 4th distribution cavity is communicated with described second flat tube.
Preferably, described first distributor is the first distributing pipe, the inner chamber of described first distributing pipe forms the first distribution cavity, the second distribution cavity is formed between the outer wall of described first distributing pipe and the inwall of described first header, described second distributor is the second distributing pipe, the inner chamber of described second distributing pipe forms the 3rd distribution cavity, the 4th distribution cavity is formed between the outer wall of described second distributing pipe and the inwall of described 3rd header, described first cold-producing medium mouth is formed by the openend of described first distributing pipe, described second refrigerant mouth is formed by the openend of described second distributing pipe.
Preferably, described first cold-producing medium mouth is connected with first interface pipe, described second refrigerant mouth is connected with the second mouthpiece, described 3rd cold-producing medium mouth is connected with the 3rd mouthpiece, described 4th cold-producing medium mouth is connected with the 4th mouthpiece, is connected to described communicating pipe between described second mouthpiece and described 3rd mouthpiece.
Preferably, described first distributor is the first distributing pipe, the inner chamber of described first distributing pipe forms the first distribution cavity, the second distribution cavity is formed between the outer wall of described first distributing pipe and the inwall of described first header, described second distributor is the second distributing pipe, the inner chamber of described second distributing pipe forms the 3rd distribution cavity, the 4th distribution cavity is formed between the outer wall of described second distributing pipe and the inwall of described 3rd header, described First Heat Exchanger comprises the first bypass pipe, described first bypass pipe is provided with the first check valve, one end of described first bypass pipe is communicated with described second distribution cavity, the other end of described first bypass pipe is communicated with described first interface pipe, described second heat exchanger comprises the second bypass pipe, described second bypass pipe is provided with the second check valve, one end of described second bypass pipe is communicated with described 4th distribution cavity, the other end of described second bypass pipe is communicated with described 3rd mouthpiece.
Preferably, described First Heat Exchanger and the second heat exchanger form v-shaped structure.
Preferably, described First Heat Exchanger and described second heat exchanger are multiple and described First Heat Exchanger and described second heat exchanger is arranged alternately, and adjacent First Heat Exchanger and the second heat exchanger were one another in series by described communicating pipe.
Preferably, described second header is higher than described first header, and described 4th header is higher than described 3rd header.
Preferably, the first cold-producing medium mouth described in when described heat-exchanger rig is used as evaporimeter is the refrigerant inlet of described First Heat Exchanger and described 3rd cold-producing medium mouth is the refrigerant inlet of described second heat exchanger.
According to the heat pump of the utility model second aspect embodiment, comprise the compressor, the first heat-exchanger rig, expansion mechanism and the second heat-exchanger rig that connect successively, at least one in described first heat-exchanger rig and described second heat-exchanger rig is described heat-exchanger rig.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the heat-exchanger rig according to the utility model embodiment.
Fig. 2 is heat-exchanger rig embodiment illustrated in fig. 1 refrigerant flow direction schematic diagram when being used as evaporimeter.
Fig. 3 is that the heat-exchanger rig of embodiment described in Fig. 1 is as refrigerant flow direction schematic diagram during condenser.
Fig. 4 is the schematic diagram being used as evaporimeter according to the heat-exchanger rig of another embodiment of the present utility model.
Fig. 5 is the schematic diagram being used as condenser according to the heat-exchanger rig of another embodiment of the present utility model.
Fig. 6 is the partial schematic diagram of the First Heat Exchanger of heat-exchanger rig according to the utility model embodiment.
Fig. 7 is the partial schematic diagram of the second heat exchanger of heat-exchanger rig according to the utility model embodiment.
Fig. 8 is the curve map changed with D2/D1 with the ratio of pressure drop in parallel according to the series connection pressure drop of the heat-exchanger rig of the utility model embodiment.
Fig. 9 is partial schematic diagram when being used as evaporimeter according to the heat-exchanger rig of the utility model embodiment in the second heat exchanger.
Figure 10 is the schematic diagram according to the heat-exchanger rig of an embodiment more of the present utility model.
Figure 11 is the schematic front view of the heat-exchanger rig shown in Figure 10.
Reference numeral:
Heat-exchanger rig 100,
First Heat Exchanger 10, the first header 11, first cold-producing medium mouth 111, first interface pipe 112, second header 12, second refrigerant mouth 121, second mouthpiece 122, first flat tube 13, first fin 14, first bypass pipe 15, first check valve 151,
Second heat exchanger the 20, three header the 21, three cold-producing medium mouth the 211, three mouthpiece the 212, four header the 22, four cold-producing medium mouth the 221, four mouthpiece 222, second flat tube 23, second fin 24, second bypass pipe 25, second check valve 251,
Communicating pipe 30,
First distributor 40, first dispensing orifice 41, first opening 42, first distribution cavity 43, second distribution cavity 44,
Second distributor 50, second dispensing orifice 51, second opening the 52, three distribution cavity the 53, four distribution cavity 54,
3rd valve port 63 of the second valve port 62, first transfer valve of the first valve port 61, first transfer valve of the first transfer valve 60, first transfer valve,
Second valve port 73 of the second valve port 72, second transfer valve of the first valve port 71, second transfer valve of the second transfer valve 70, second transfer valve.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Heat-exchanger rig according to the utility model embodiment is described below.
Heat-exchanger rig according to the utility model embodiment comprises: First Heat Exchanger, the second heat exchanger, communicating pipe, the first distributor and the second distributor.
Wherein, First Heat Exchanger comprises the first header, the second header, the first fin of being connected to the first flat tube between the first header and the second header and being located between adjacent first flat tube, first header is provided with the first cold-producing medium mouth, and the second header is provided with second refrigerant mouth.Correspondingly, second heat exchanger comprises the 3rd header, the 4th header, the second fin of being connected to the second flat tube between the 3rd header and the 4th header and being located between adjacent second flat tube, 3rd header is provided with the 3rd cold-producing medium mouth, and the 4th header is provided with the 4th cold-producing medium mouth.The first end of communicating pipe is connected with second refrigerant mouth and second end of communicating pipe is connected with the 3rd cold-producing medium mouth.
Particularly, the first distributor is inserted in the first header, the first opening that the first distributor has the first dispensing orifice and is connected with the first cold-producing medium mouth; Second distributor is inserted in the 3rd header, the second opening that the second distributor has the second dispensing orifice and is connected with the 3rd cold-producing medium mouth.
Heat-exchanger rig according to the utility model embodiment connects First Heat Exchanger and the second heat exchanger by communicating pipe, thus achieve First Heat Exchanger and the second heat exchanger is connected in series, thus make unidirectional flow of refrigerant, extend frosting path, reduce the frosting area of heat-exchanger rig entirety.
An embodiment of the utility model heat-exchanger rig 100 is described referring to Fig. 1 to Fig. 3.
As shown in Figure 1, heat-exchanger rig 100 comprises: First Heat Exchanger 10, second heat exchanger 20, communicating pipe 30, first distributor 40 and the second distributor 50.Wherein, each heat exchanger is provided with a refrigerant inlet, a refrigerant outlet and a distributor.
In First Heat Exchanger 10, First Heat Exchanger 10 comprises the first header 11, second header 12, be connected to the first flat tube 13 between the first header 11 and the second header 12, be located at the first fin 14 between adjacent first flat tube 13.First header 11 is provided with the first cold-producing medium mouth 111, second header 12 is provided with second refrigerant mouth 121, first distributor 40 is inserted in the first header 11, the first opening 42 that the first distributor 40 has the first dispensing orifice 41 and is connected with the first cold-producing medium mouth 111.
Correspondingly, in the second heat exchanger 20, the second heat exchanger 20 comprises the 3rd header 21, the 4th header 22, is connected to the second flat tube 23 between the 3rd header 21 and the 4th header 22, is located at the second fin 24 between adjacent second flat tube 23.3rd header 21 is provided with the 3rd cold-producing medium mouth 211,4th header 22 is provided with the 4th cold-producing medium mouth 221, second distributor 50 is inserted in the 3rd header 21, the second opening 52 that the second distributor 50 has the second dispensing orifice 51 and is connected with the 3rd cold-producing medium mouth 211.
It will be appreciated by persons skilled in the art that term " cold-producing medium mouth " is that confession under directions cold-producing medium enters the refrigerant inlet of heat exchanger or the refrigerant outlet for cold-producing medium outflow heat exchanger.When heat-exchanger rig 100 is used as evaporimeter or condenser, cold-producing medium can enter through the first header 11 and flow through the second header 12, the 3rd header 21, the 4th header 22 successively, now the first header 11 and the 3rd header 21 are refrigerant inlet, and the second header 12 and the 4th header 22 are refrigerant outlet.In like manner, cold-producing medium can also enter through the 4th header 22 and flow through the 3rd header 21, second header 12, first header 11 successively, now the second header 12 and the 4th header 22 are refrigerant inlet, and the first header 11 and the 3rd header 21 are refrigerant outlet.
In specific embodiment shown in Fig. 1 to Fig. 3, when heat-exchanger rig 100 is used as evaporimeter, the first cold-producing medium mouth 111 is the refrigerant inlet of First Heat Exchanger 10 and the 3rd cold-producing medium mouth 211 is the refrigerant inlet of the second heat exchanger 20.
Like this, when heat exchanger is used as evaporimeter, enter containing more liquid phase refrigerant in the cold-producing medium of heat exchanger, the first distributor 40 be arranged in the first header 11 can play better distributional effects to cold-producing medium (especially liquid phase refrigerant) with the second distributor 50 be arranged in the 3rd header 21.
Now, first cold-producing medium mouth 111 and the 3rd cold-producing medium mouth 211 are refrigerant inlet, second refrigerant mouth 121 and the 4th cold-producing medium mouth 221 are refrigerant outlet, the cold-producing medium of discharging through expansion mechanism enters First Heat Exchanger 10 through the first cold-producing medium mouth 111 and realizes the distribution of cold-producing medium through the first distributor 40, cold-producing medium after being assigned with enters into the first flat tube 13, cold-producing medium enters into the second header 12 after the first flat tube 13 and the first fin 14 heat exchange, finally flow out First Heat Exchanger 10 from second refrigerant mouth 121, cold-producing medium is through flowing to the second heat exchanger 20 communicating pipe 30 subsequently, second heat exchanger 20 distribute to the cold-producing medium of First Heat Exchanger 10 inside and refrigerant flow direction similar, do not repeat at this.
When heat-exchanger rig 100 is used as off-premises station use, under off-premises station is placed in outdoor environment usually, when waiting outdoor environment temperature lower in the winter time, heat-exchanger rig 100 there will be frost, especially during heat exchanger employing parallel way, the frosting path of heat-exchanger rig 100 is shorter, the frost layer that such heat-exchanger rig 100 freezes is easy to block the portion gap between fin, and then affects the heat exchange of surrounding air and heat exchanger.
For solving above-mentioned heat exchange efficiency low, the heat transfer effect poor problem serious caused because of heat-exchanger rig 100 frosting, be connected by communicating pipe 30 with the second heat exchanger 20 by First Heat Exchanger 10, the first end of communicating pipe 30 is connected with the second refrigerant mouth 121 of the first header 11 and second end of communicating pipe 30 is connected with the 3rd cold-producing medium mouth 211.Like this, First Heat Exchanger 10 and the second heat exchanger 20 are connected in series by communicating pipe 30, make cold-producing medium successively through First Heat Exchanger 10 and the second heat exchanger 20 heat exchange, extend the path of climbing of frost layer on heat-exchanger rig 100 thus, frosting on First Heat Exchanger 10 and the second heat exchanger 20 is climbed gradually, to reduce condensation thickness on heat-exchanger rig 100, to reduce the frosting area of heat-exchanger rig 100 entirety to refrigerant outlet by refrigerant inlet.
But First Heat Exchanger 10 and the second heat exchanger 20 relative First Heat Exchanger 10 overall presure drop in parallel with the second heat exchanger 20 of connecting obviously increases, and heat exchange efficiency reduces.For addressing this problem, the applicant, through repeatedly studying discovery, to the cold-producing medium reasonable distribution in First Heat Exchanger 10 and the second heat exchanger 20, not only can make cold-producing medium distribute more even, and can reduce the overall presure drop of heat-exchanger rig 100.Particularly, the total aperture area defining the first dispensing orifice 41 is A1, total aperture area of the second dispensing orifice 51 is A2, when 1<A2/A1≤3.5, when heat-exchanger rig 100 is used as evaporimeter, the more vapor phase refrigerant that the 3rd header 21 through the second heat exchanger 20 flows in device can flow out through dispensing orifice fast, reduce the resistance that cold-producing medium is subject to when distributing pipe flows out, improve flowing velocity and the dispensing rate of cold-producing medium entirety, thus the pressure drop in the second heat exchanger 20 is reduced greatly with the overall presure drop of heat-exchanger rig 100, make cold-producing medium distribute evenly, improve the heat exchange property of heat-exchanger rig 100.
As shown in Figure 3, connect for ease of the pipeline between adjacent heat exchange device, first cold-producing medium mouth 111 is connected with first interface pipe 112, second refrigerant mouth 121 is connected with the second mouthpiece 122,3rd cold-producing medium mouth 211 is connected with the 3rd mouthpiece 212,4th cold-producing medium mouth 221 is connected with the 4th mouthpiece 222, is connected to communicating pipe 30 between second mouthpiece 122 and the 3rd mouthpiece 212.
Heat-exchanger rig 100 is contrary with flow direction when being used as evaporimeter as the flow direction of cold-producing medium during condenser, now, cold-producing medium is discharged from the first header 11 and the 3rd header 21, first distributor 40 and the second distributor 50 are positioned on above-mentioned outlet collection pipe, not only can not play the effect of uniform distribution cold-producing medium, and bring larger resistance for the discharge of cold-producing medium, increase the pressure drop of heat-exchanger rig 100.For this reason, bypass pipe can be set up distribute to make the cold-producing medium entering the first header 11 (and/or the 3rd header 21) not enter distributor but directly discharge heat exchanger through by-passing valve on the first header 11 and/or the 3rd header 21.
With reference to Fig. 3, in a specific embodiment, first distributor 40 is the first distributing pipe, the inner chamber of the first distributing pipe forms the first distribution cavity 43, the second distribution cavity 44 is formed between the outer wall of the first distributing pipe and the inwall of the first header 11, second distributor 50 is the second distributing pipe, and the inner chamber of the second distributing pipe forms between the outer wall of the 3rd distribution cavity 53, second distributing pipe and the inwall of the 3rd header 21 and forms the 4th distribution cavity 54.Wherein, First Heat Exchanger 10 comprises the first bypass pipe 15, first bypass pipe 15 is provided with the first check valve 151, one end of first bypass pipe 15 is communicated with the second distribution cavity 44, the other end of the first bypass pipe 15 is communicated with first interface pipe 112, and first interface pipe 112 is communicated with expansion mechanism with the first cold-producing medium mouth 111.Correspondingly, second heat exchanger 20 comprises the second bypass pipe 25, second bypass pipe 25 is provided with the second check valve 251, one end of second bypass pipe 25 is communicated with the 4th distribution cavity 54, the other end of the second bypass pipe 25 is communicated with the 3rd mouthpiece 212, and the second mouthpiece 122 is communicated with communicating pipe 30 with the 3rd cold-producing medium mouth 211.
When heat-exchanger rig 100 is used as evaporimeter, as shown in Figure 2, the first check valve 151, second check valve 251 is all in closed condition, the first bypass pipe 15 and second bypass pipe 151 all not conductings.
When heat-exchanger rig 100 is used as condenser use, as shown in Figure 3, in the second heat exchanger 20, cold-producing medium is flowed to the 3rd mouthpiece 212 by the 4th distribution cavity 54, second check valve 251 is in conducting state, and cold-producing medium is without the second distributor 50 but directly flow out through the second bypass pipe 25.In First Heat Exchanger 10, cold-producing medium is flowed to first interface pipe 112 by the second distribution cavity 44, and the first check valve 151 is in conducting state, and cold-producing medium is without the first distributor 40 but directly flow out through the first bypass pipe 15.
Thus, cold-producing medium need not distribute via the second distributor 50 of the first distributor 40 of First Heat Exchanger 10 and the second heat exchanger 20, but directly through the uncrossed outflow of bypass pipe, avoid and enter the first distributing pipe from the first dispensing orifice 41 and enter from the second dispensing orifice 51 pressure drop and energy loss that second distributing pipe causes, improve the heat exchange efficiency of heat-exchanger rig 100.
Another embodiment of heat-exchanger rig of the present utility model is described referring to Fig. 5 and Fig. 6.
As shown in Figure 4 and Figure 5, heat-exchanger rig 100 also comprises the first transfer valve 60, first transfer valve 60 has the first to the 3rd valve port, first valve port 61 of the first transfer valve is connected with second refrigerant mouth 121, second valve port 62 of the first transfer valve is connected with the first cold-producing medium mouth 111, and the 3rd valve port 63 of the first transfer valve is connected with the 3rd cold-producing medium mouth 211.Further, heat-exchanger rig 100 also comprises the second transfer valve 70, second transfer valve 70 and has the first to the 3rd valve port, and the first valve port 71 of the second transfer valve is connected with second refrigerant mouth 121, and the 3rd valve port of the second transfer valve 70 is connected with the first cold-producing medium mouth 111.
When heat-exchanger rig 100 is used as evaporimeter, with reference to Fig. 4, the first valve port 61 and the 3rd valve port 63 of the first transfer valve are opened, and the second valve port 62 is closed, and the second valve port 72 and the 3rd valve port 73 of the second transfer valve are opened, and the first valve port 71 is closed.Like this.The flow direction of cold-producing medium is as follows: cold-producing medium enters the first header 11 and dispensing orifice through the first distributor 40 flows out through the second valve port 72 of the second transfer valve and the 3rd valve port 73, the second header 12 is flowed to after the first flat tube 13 heat exchange, cold-producing medium flows out First Heat Exchanger 10 through the second refrigerant mouth 121 of the second header 12 afterwards, then cold-producing medium flows to the 3rd cold-producing medium mouth 211 of the second heat exchanger 20 through the first valve port 61 of the first transfer valve and the 3rd valve port 63 and flow to the second flat tube 23 and the 4th header 22 after the second distributor 50 distributes, finally flow out through the 4th cold-producing medium mouth 221.
When heat-exchanger rig 100 is used as condenser, with reference to Fig. 5, the second valve port 62 and the 3rd valve port 63 of the first transfer valve are opened, and the first valve port 61 is closed, and the first valve port 71 of the second transfer valve and the second valve port 72 are opened, and the 3rd valve port 73 is closed.Now, cold-producing medium to enter in the second heat exchanger 20 through the 4th cold-producing medium mouth 221 and flow to the 3rd header 21 after the second flat tube 23 heat exchange, cold-producing medium flows out through the 3rd header 21 afterwards, then cold-producing medium flows to the first cold-producing medium mouth 111 of First Heat Exchanger 10 through the second valve port 62 of the first transfer valve and the 3rd valve port 63, and the first flat tube 13 and the second header 12 is flowed to after the first distributor 40 distributes, the second valve port 72 finally through the first valve port 71, second transfer valve of second refrigerant mouth 121, second transfer valve flows out.
That is, after the gas-liquid two-phase cold-producing medium flowed out from the second heat exchanger 20 enters into the first cold-producing medium mouth 111 of First Heat Exchanger 10, first by the first distributor 40 uniform distribution in the first header 11, enter into corresponding flat tube afterwards and participate in heat exchange, first transfer valve 60 and the second transfer valve 70 make heat-exchanger rig 100 also can obtain uniform distribution as cold-producing medium during condenser thus, improve the heat exchange efficiency of heat-exchanger rig 100.
It will be appreciated by those skilled in the art that, in this embodiment, when the second heat exchanger 20 also can be arranged the second bypass pipe 25 and the second check valve 251 to make heat-exchanger rig 100 be used as condenser, cold-producing medium can directly flow out through the 4th distribution cavity 54 and the second bypass pipe 25, as shown in Figure 5,6.Wherein, the concrete structure of the second bypass pipe 25 can referring to figs. 1 to the second bypass pipe 25 in the embodiment shown in Fig. 3.
Wherein, the first transfer valve 60 and the second transfer valve 70 are three-way solenoid valve.Heat-exchanger rig 100 can be arranged the control element be electrically connected with the first transfer valve 60 and the second transfer valve 70, control element can control according to the application demand of heat-exchanger rig 100 open and close connecting corresponding valve port on a transfer valve.
In addition, for adapting to the first transfer valve 60 and the connection requirement of the second transfer valve 70 in heat-exchanger rig 100, suitably can increase by the first header 11, the quantity of the cold-producing medium mouth on the second header 12, such as, in certain embodiments, first cold-producing medium mouth 111 is for being respectively formed at two of the two ends of the first header 11, second refrigerant mouth 121 is for being respectively formed at two of the two ends of the second header 12, 3rd valve port of the second transfer valve 70 is connected with a first cold-producing medium mouth 111, second valve port 62 of the first transfer valve is connected with another the first cold-producing medium mouth 111, first valve port 71 of the second transfer valve is connected with a second refrigerant mouth 121, first valve port 61 of the first transfer valve is connected with another second refrigerant mouth 121.Particularly, two the first cold-producing medium mouths 111 can lay respectively at the two ends of the first header 11, two second refrigerant mouths 121 also lay respectively at the two ends of the second header 12, correspondingly, the number of the first opening on the first distributor 40 is two and is communicated with corresponding second refrigerant mouth 121 respectively.Like this, the pipeline arrangement of heat-exchanger rig 100 is compact, rationally distributed.
In certain embodiments, the first cold-producing medium mouth 111 and the first opening 42 are same opening, and the 3rd cold-producing medium mouth 211 and the second opening 52 are same opening.Like this, the second opening 52 that the first opening 42 of the first distributor 40 forms the first cold-producing medium mouth 111, second distributor 50 forms second refrigerant mouth 121.Thus, cold-producing medium can flow to through the first cold-producing medium mouth 111 and second refrigerant mouth 121 or flow out corresponding header, not only makes the structure of header simple, compact, and optimizes the flow path of cold-producing medium, improve the flowing velocity of cold-producing medium.Be understandable that, the first opening 42 and the first cold-producing medium mouth 111 can be same openings, also can be the different openings connected by pipeline.
First distributor 40 and the second distributor 50 are the structure that can realize cold-producing medium distribution function, and the concrete structure of distributor can have multiple choices.
Such as, in one embodiment, first distributor 40 is the first distribution plate, first distribution plate is located in the first header 11 the inner chamber of the first header 11 to be divided into the first distribution cavity 43 and the second distribution cavity 44, first distribution cavity 43 is communicated with the first opening 42 and is communicated with the second distribution cavity 44 by the first dispensing orifice 41, second distribution cavity 44 is communicated with the first flat tube 13, second distributor 50 is the second distribution plate, second distribution plate is located in the 3rd header 21 so that the inner chamber of the 3rd header 21 is divided into the 3rd distribution cavity 53 and the 4th distribution cavity 54, 3rd distribution cavity 53 is communicated with the second opening 52 and is communicated with the 4th distribution cavity 54 by the second dispensing orifice 51, 4th distribution cavity 54 is communicated with the second flat tube 23.
In another embodiment, as shown in Figure 4 and Figure 5, first distributor 40 is the first distributing pipe, the inner chamber of the first distributing pipe forms the first distribution cavity 43, the second distribution cavity 44 is formed between the outer wall of the first distributing pipe and the inwall of the first header 11, second distributor 50 is the second distributing pipe, and the inner chamber of the second distributing pipe forms between the outer wall of the 3rd distribution cavity 53, second distributing pipe and the inwall of the 3rd header 21 and forms the 4th distribution cavity 54.Wherein, the first dispensing orifice 41 is multiple and is formed on the sidewall of the first distributing pipe, and the first distribution cavity 43 is communicated with by the first dispensing orifice 41 with the second distribution cavity 44; Second dispensing orifice 51 is multiple and is formed on the sidewall of the second distributing pipe, and the 3rd distribution cavity 53 is communicated with by the second dispensing orifice 51 with the 4th distribution cavity 54.
Thus, the second distribution cavity 44 is flowed to realize the shunting of cold-producing medium to each flat tube in First Heat Exchanger 10 through multiple first dispensing orifice 41 after cold-producing medium enters the first distribution cavity 43, in like manner, the 3rd distribution cavity 53 is flowed to realize the shunting of cold-producing medium to each flat tube in the second heat exchanger 20 through multiple second dispensing orifice 51 after cold-producing medium enters the second distribution cavity 44.
Preferably, the first cold-producing medium mouth 111 is formed by the openend of the first distributing pipe, and second refrigerant mouth 121 is formed by the openend of the second distributing pipe.Correspondingly, the first opening 42 is also formed in the openend of the first distributing pipe, and the second opening 52 is formed in the openend of the second distributing pipe.Thus, cold-producing medium to enter after distributing pipe substantially along one-way flow, decreases the turbulent flow in distributing pipe, cold-producing medium is distributed evenly.
Further, as shown in Figure 6 and Figure 7, the internal diameter of the first distributing pipe is d1, and the internal diameter of the second distributing pipe is d2, wherein: 1≤d2/d1≤4.5.The utility model people of the application finds after deliberation, the ratio size of the internal diameter of the dispensing orifice in the internal diameter of the dispensing orifice in the first header 11 of First Heat Exchanger 10 and the first header 11 of the second heat exchanger 20 and the pressure drop relationships of heat-exchanger rig 100 close.Solid line in Fig. 6 be the pressure drop of First Heat Exchanger 10 when connecting with the second heat exchanger 20 and in parallel time the curve that changes with the ratio of d2/d1 of the ratio of pressure drop.
As shown in Figure 8, when heat-exchanger rig 100 is used as evaporimeter, during 1≤d2/d1≤4.5,1≤series connection pressure drop Δ P1/ pressure drop Δ P2≤2 (see dotted line in Fig. 8) in parallel.Like this, by arranging d2/d1 >=1, the internal diameter of the distributing pipe in the first header 11 of i.e. the second heat exchanger 20 is greater than the internal diameter of the distributing pipe in the first header 11 of First Heat Exchanger 10, greatly reduce the pressure drop produced in the second heat exchanger tube, the pressure drop of each heat exchanger when making First Heat Exchanger 10 be less than in parallel with the respective pressure drop of the second heat exchanger 20, make the energy loss of each heat exchanger inside less, distribute more even.And, adopt d2/d1≤4.5, while guarantee reasonable pressure drop, avoid the size of two distributing pipes by the header size of insertion and the restriction of assembling mode separately.
As shown in Figure 6 and Figure 7, the internal diameter of the first header 11 is D1, and the internal diameter of the 3rd header 21 is D2, and the internal diameter of the first distributing pipe is d1, and the internal diameter of the second distributing pipe is d2, wherein: 0.2≤(D2 × d1)/(D1 × d2)≤2.3.
The utility model people of the application finds after deliberation, and change the ratio size of (D2 × d1)/(D1 × d2), the overall presure drop of this heat-exchanger rig 100 can change.When (D2 × d1)/(D1 × d2) is less than 0.2, cold-producing medium inlet in first header 11 of First Heat Exchanger 10 is larger, and the space that can carry cold-producing medium in the first distributing pipe is less, thus affect the flowing velocity of cold-producing medium, the pressure drop in First Heat Exchanger 10 in first header 11 can be caused larger; And the inlet of cold-producing medium in the 3rd header 21 of the second heat exchanger 20 is less, the space that can carry refrigerator in the second distributing pipe is larger, the cold-producing medium entered like this in the second distributing pipe of the second heat exchanger 20 is relatively inadequate, and the heat exchange of the second heat exchanger 20 can be caused uneven.And when (D2 × d1)/(D1 × d2) is greater than 2.3, in the 3rd header 21 of the second heat exchanger 20, pressure drop is comparatively large, and First Heat Exchanger 10 there will be the problems such as heat exchange is uneven.
To sum up, adopt 0.2≤(D2 × d1)/(D1 × d2)≤2.3, not only make that refrigerant flow rates is uniform and stable, heat-exchanger rig 100 heat exchange is even, and to avoid occurring in adjacent two heat exchangers the excessive phenomenon of pressure drop in a heat exchanger, reduce cold-producing medium by the unnecessary pressure drop produced during repeated dispensing, thus the overall presure drop reducing heat-exchanger rig 100 internal losses is to make point with addition of evenly, to improve heat exchange property.
The too high problem of brought overall presure drop is connected in series for solving adjacent heat exchange device, the first header 11 of First Heat Exchanger 10 and the first distributing pipe, the 3rd header 21 of the second heat exchanger 20 and the internal diameter of the second distributing pipe is made to meet following relation: 0.2≤(D2 × d1)/(D1 × d2)≤2.3, effectively reduce the unnecessary pressure drop produced when cold-producing medium second time is distributed thus, thus the overall presure drop reducing heat-exchanger rig 100 internal losses is to make point with addition of evenly, to improve heat exchange property.
In addition, First Heat Exchanger 10 and the second heat exchanger 20 also can arrange step-down to reduce heat-exchanger rig 100 by following requirement:
.Wherein, M1 is the refrigerant mass fluxes of First Heat Exchanger 10, and M2 is the refrigerant mass fluxes of the second heat exchanger 20.ρ 1 is the refrigerant density of First Heat Exchanger 10 as the first cold-producing medium mouth 111 during evaporimeter, ρ 2 is the refrigerant density of the second heat exchanger 20 as the 3rd cold-producing medium mouth 211 during evaporimeter, A1 is total aperture area of the first dispensing orifice 41, and A2 is total aperture area of the second dispensing orifice 51.
In a preferred embodiment, as shown in Figure 9, first distributor 40 is the first distributing pipe, second distributor 50 is the second distributing pipe, distance between one end of the contiguous 3rd cold-producing medium mouth 211 of 3rd header 21 and the second dispensing orifice 51 nearest apart from this end is L2, the internal diameter of the second distributing pipe is d2, wherein: L2/d2≤90.
Particularly, multiple first dispensing orifice 41 is along the axial distribution of the first distributing pipe, the sidewall of the through distributing pipe of each the first dispensing orifice 41, the aperture that the aperture of first dispensing orifice 41 at contiguous first cold-producing medium mouth 111 place is less than away from first dispensing orifice 41 at the first cold-producing medium mouth 111 place is flowed out at contiguous first cold-producing medium mouth 111 place first dispensing orifice 41 to avoid a large amount of cold-producing medium, avoids distributing inequality.
After cold-producing medium enters into the second heat exchanger 20, cold-producing medium gas phase content in second heat exchanger 20 is higher, more difficult mixing, by adopting above-mentioned design, vapor phase refrigerant is discharged fast through the second dispensing orifice 51, thus making the ratio of remaining vapor phase refrigerant and liquid phase refrigerant relatively uniform concentrated, distribution is improved; The phenomenon simultaneously avoiding the flow pressure drop of a large amount of air accumulation caused cold-producing medium in the second distributing pipe significantly to rise occurs.
In certain embodiments, First Heat Exchanger 10 and the second heat exchanger 20 are micro-channel heat exchanger.Particularly, the number of the flat tube of heat exchanger is multiple, there is in each flat tube the microchannel for flow of refrigerant, micro-channel heat exchanger is not only simple and compact for structure, in pipe, microchannel cooling fluid flow process shortens, the flow of single microchannel reduces, and greatly reduces the pressure drop of refrigerant side, has higher heat exchange efficiency.
As shown in Figure 10, in a preferred embodiment, First Heat Exchanger 10 and the second heat exchanger 20 form v-shaped structure.Thus reduce the space that heat-exchanger rig 100 takies, heat exchange is simultaneously more even.Originally the technical staff that drenches with rain is appreciated that First Heat Exchanger 10 of the present utility model and the second heat exchanger 20 are not limited to said structure, and two heat exchangers of arbitrary neighborhood can also be parallel to each other or become predetermined angle, and this predetermined angle can be acute angle, right angle or obtuse angle.
Further, with reference to Figure 11, the second header 12 higher than the first header the 11, four header 22 higher than the 3rd header 21.Like this, when heat-exchanger rig 100 is used as evaporimeter, cold-producing medium is after the first header 11 of First Heat Exchanger 10 enters, the 4th header 22 through the second heat exchanger 20 flows out, Partial Liquid Phase cold-producing medium absorbs heat gradually and forms vapor phase refrigerant in heat exchanger, vapor phase refrigerant quick bottom-up motion easier relative to liquid phase refrigerant, which thereby enhances the heat exchanger effectiveness of heat exchanger.
In multiple embodiments shown in Fig. 1 to Figure 11, heat-exchanger rig 100 comprises two heat exchangers, but the utility model is not limited to this.In certain embodiments, First Heat Exchanger 10 and the second heat exchanger 20 are multiple and First Heat Exchanger 10 and the second heat exchanger 20 and are arranged alternately, and adjacent First Heat Exchanger 10 and the second heat exchanger 20 were one another in series by communicating pipe 30.
Be understandable that, the quantity of the heat exchanger in heat-exchanger rig 100 can be at least two, when the quantity of heat exchanger is two or more, First Heat Exchanger 10 is one in two heat exchangers of arbitrary neighborhood, the second heat exchanger 20 be in two heat exchangers of arbitrary neighborhood another.Can be sequentially connected in series between heat exchanger, also the combining form be connected in series with being connected in parallel can be adopted, in these cases, First Heat Exchanger 1010a and the second heat exchanger 2010b is wherein any two adjacent and heat exchangers be connected in series, and above-described embodiment is also all applicable to it.
According to the heat pump of the utility model second aspect embodiment, comprise the compressor, the first heat-exchanger rig, expansion mechanism and the second heat-exchanger rig that connect successively, at least one heat-exchanger rig being in the first heat-exchanger rig and the second heat-exchanger rig.Wherein in the first heat-exchanger rig and the second heat-exchanger rig one be used as condenser, another is used as evaporimeter.
The flow direction of brief description heat pump work schedule cryogen:
In heat pump, when heat-exchanger rig 100 is used as condenser, after compressor compression, the vapor phase refrigerant of low-temp low-pressure is converted into the vapor phase refrigerant of HTHP, the vapor phase refrigerant of HTHP enters into the second heat exchanger 20 of heat-exchanger rig 100, flow through the 4th header 22 successively, second flat tube 23, 3rd header 21, heat exchange is participated in along with in the second heat exchanger 20, the cold-producing medium entered in the second header 12 comprises vapor phase refrigerant and liquid phase refrigerant, gas-liquid two-phase cold-producing medium flows to the second header 12 of First Heat Exchanger 10 through the second bypass pipe 25 and communicating pipe 30, gas-liquid two-phase cold-producing medium flows to the first header 11 through flat tube and flows out from the first bypass pipe 15 subsequently, the liquid phase refrigerant of the HTHP of final outflow heat-exchanger rig 100 enters expansion gear to change into the liquid phase refrigerant of low-temp low-pressure, the liquid phase refrigerant of low-temp low-pressure converts the vapor phase refrigerant of low-temp low-pressure to through evaporimeter, this vapor phase refrigerant flows in the entrance of compressor, circulate and so forth, achieve heating of heat pump.
In like manner, in heat pump, when heat-exchanger rig 100 is used as evaporimeter, after compressor compression, the vapor phase refrigerant of low-temp low-pressure is converted into the vapor phase refrigerant of HTHP, the vapor phase refrigerant of HTHP to enter in condenser and is converted into the liquid phase refrigerant of HTHP, the liquid phase refrigerant of HTHP is converted into the vapor phase refrigerant of low-temp low-pressure after expansion mechanism, vapor phase refrigerant flows in the First Heat Exchanger 10 of heat-exchanger rig 100 subsequently, flow through the first header 11 successively, first flat tube 13, second header 12, heat exchange is participated in along with in First Heat Exchanger 10, the cold-producing medium entered in the second header 12 comprises vapor phase refrigerant and liquid phase refrigerant, gas-liquid two-phase cold-producing medium is through flowing to the 3rd header 21 of the second heat exchanger 20 communicating pipe 30, with after flow to the 4th header 22 through flat tube and flow out from the 4th cold-producing medium mouth 221, the vapor phase refrigerant of the low-temp low-pressure of final outflow heat-exchanger rig 100 flows in the entrance of compressor, circulate and so forth, achieve heating of heat pump.
In description of the present utility model, it is to be appreciated that term " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (15)
1. a heat-exchanger rig, is characterized in that, comprising:
First Heat Exchanger, described First Heat Exchanger comprises the first header, the second header, the first fin of being connected to the first flat tube between described first header and the second header and being located between adjacent first flat tube, described first header is provided with the first cold-producing medium mouth, and described second header is provided with second refrigerant mouth;
Second heat exchanger, described second heat exchanger comprises the 3rd header, the 4th header, the second fin of being connected to the second flat tube between described 3rd header and the 4th header and being located between adjacent second flat tube, described 3rd header is provided with the 3rd cold-producing medium mouth, and described 4th header is provided with the 4th cold-producing medium mouth;
Communicating pipe, the first end of described communicating pipe is connected with described second refrigerant mouth and second end of described communicating pipe is connected with described 3rd cold-producing medium mouth;
First distributor, described first distributor is inserted in described first header, the first opening that described first distributor has the first dispensing orifice and is connected with described first cold-producing medium mouth;
Second distributor, described second distributor is inserted in described 3rd header, the second opening that described second distributor has the second dispensing orifice and is connected with described 3rd cold-producing medium mouth.
2. heat-exchanger rig according to claim 1, it is characterized in that, also comprise the first transfer valve, described first transfer valve has the first to the 3rd valve port, first valve port of described first transfer valve is connected with described second refrigerant mouth, second valve port of described first transfer valve is connected with described first cold-producing medium mouth, and the 3rd valve port of described first transfer valve is connected with described 3rd cold-producing medium mouth.
3. heat-exchanger rig according to claim 2, it is characterized in that, also comprise the second transfer valve, described second transfer valve has the first to the 3rd valve port, first valve port of described second transfer valve is connected with described second refrigerant mouth, and the 3rd valve port of described second transfer valve is connected with described first cold-producing medium mouth.
4. heat-exchanger rig according to claim 3, is characterized in that, described first cold-producing medium mouth for being respectively formed at two of the two ends of described first header, described second refrigerant mouth for being respectively formed at two of the two ends of described second header,
3rd valve port of described second transfer valve is connected with a first cold-producing medium mouth, and the second valve port of described first transfer valve is connected with another the first cold-producing medium mouth,
First valve port of described second transfer valve is connected with a second refrigerant mouth, and the first valve port of described first transfer valve is connected with another second refrigerant mouth.
5. the heat-exchanger rig according to claim 3 or 4, is characterized in that, described first transfer valve and described second transfer valve are three-way solenoid valve.
6. heat-exchanger rig according to claim 1, is characterized in that, described first cold-producing medium mouth and described first opening are same opening, and described 3rd cold-producing medium mouth and described second opening are same opening.
7. heat-exchanger rig according to claim 1, it is characterized in that, described first distributor is the first distribution plate, described first distribution plate is located in described first header so that the inner chamber of described first header is divided into the first distribution cavity and the second distribution cavity, described first distribution cavity is with described first open communication and be communicated with described second distribution cavity by described first dispensing orifice, described second distribution cavity is communicated with described first flat tube
Described second distributor is the second distribution plate, described second distribution plate is located in described 3rd header so that the inner chamber of described 3rd header is divided into the 3rd distribution cavity and the 4th distribution cavity, described 3rd distribution cavity is with described second open communication and be communicated with described 4th distribution cavity by described second dispensing orifice, and described 4th distribution cavity is communicated with described second flat tube.
8. heat-exchanger rig according to claim 1, it is characterized in that, described first distributor is the first distributing pipe, and the inner chamber of described first distributing pipe forms the first distribution cavity, the second distribution cavity is formed between the outer wall of described first distributing pipe and the inwall of described first header
Described second distributor is the second distributing pipe, and the inner chamber of described second distributing pipe forms the 3rd distribution cavity, forms the 4th distribution cavity between the outer wall of described second distributing pipe and the inwall of described 3rd header,
Described first cold-producing medium mouth is formed by the openend of described first distributing pipe, and described second refrigerant mouth is formed by the openend of described second distributing pipe.
9. heat-exchanger rig according to claim 1, is characterized in that, described first cold-producing medium mouth is connected with first interface pipe, described second refrigerant mouth is connected with the second mouthpiece, described 3rd cold-producing medium mouth is connected with the 3rd mouthpiece, and described 4th cold-producing medium mouth is connected with the 4th mouthpiece
Be connected to described communicating pipe between described second mouthpiece and described 3rd mouthpiece.
10. heat-exchanger rig according to claim 9, it is characterized in that, described first distributor is the first distributing pipe, and the inner chamber of described first distributing pipe forms the first distribution cavity, the second distribution cavity is formed between the outer wall of described first distributing pipe and the inwall of described first header
Described second distributor is the second distributing pipe, and the inner chamber of described second distributing pipe forms the 3rd distribution cavity, forms the 4th distribution cavity between the outer wall of described second distributing pipe and the inwall of described 3rd header,
Described First Heat Exchanger comprises the first bypass pipe, and described first bypass pipe is provided with the first check valve, and one end of described first bypass pipe is communicated with described second distribution cavity, and the other end of described first bypass pipe is communicated with described first interface pipe,
Described second heat exchanger comprises the second bypass pipe, and described second bypass pipe is provided with the second check valve, and one end of described second bypass pipe is communicated with described 4th distribution cavity, and the other end of described second bypass pipe is communicated with described 3rd mouthpiece.
11. heat-exchanger rigs according to claim 1, is characterized in that, described First Heat Exchanger and the second heat exchanger form v-shaped structure.
12. heat-exchanger rigs according to claim 1, it is characterized in that, described First Heat Exchanger and described second heat exchanger are multiple and described First Heat Exchanger and described second heat exchanger is arranged alternately, and adjacent First Heat Exchanger and the second heat exchanger were one another in series by described communicating pipe.
13. heat-exchanger rigs according to claim 1, is characterized in that, described second header is higher than described first header, and described 4th header is higher than described 3rd header.
14. heat-exchanger rigs according to claim 1, it is characterized in that, the first cold-producing medium mouth described in when described heat-exchanger rig is used as evaporimeter is the refrigerant inlet of described First Heat Exchanger and described 3rd cold-producing medium mouth is the refrigerant inlet of described second heat exchanger.
15. 1 kinds of heat pumps, it is characterized in that, comprise the compressor, the first heat-exchanger rig, expansion mechanism and the second heat-exchanger rig that connect successively, at least one in described first heat-exchanger rig and described second heat-exchanger rig is the heat-exchanger rig according to any one of claim 1-14.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123409A (en) * | 2016-08-22 | 2016-11-16 | 杭州三花微通道换热器有限公司 | Refrigerant distributing device and parallel-flow heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123409A (en) * | 2016-08-22 | 2016-11-16 | 杭州三花微通道换热器有限公司 | Refrigerant distributing device and parallel-flow heat exchanger |
| CN106123409B (en) * | 2016-08-22 | 2018-09-11 | 杭州三花微通道换热器有限公司 | Refrigerant distributing device and parallel-flow heat exchanger |
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