CN103776282B - Heat exchanger - Google Patents
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- CN103776282B CN103776282B CN201410058750.4A CN201410058750A CN103776282B CN 103776282 B CN103776282 B CN 103776282B CN 201410058750 A CN201410058750 A CN 201410058750A CN 103776282 B CN103776282 B CN 103776282B
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Abstract
The invention discloses a kind of heat exchanger.This heat exchanger comprises: the first header; Second header, described first header and the spaced apart preset distance of the second header; Multiple flat tube, described multiple flat tube to be spaced apart and arranged between the first header and the second header and to be communicated with the first header and the second header.At least one in described first header and the second header comprises arrange along its longitudinally at least two cavitys side by side, the first cavity in described at least two cavitys is connected with described flat tube, described first cavity is separated at least two sub-cavity sections by along the separator arranged perpendicular to described longitudinally, and all the other cavitys in described at least two cavitys are at least communicated with a described sub-cavity section.
Description
Technical field
The present invention relates to HVAC, automobile, refrigeration and transport field, particularly relate to the heat exchanger for evaporimeter, condenser and water tank etc.
Background technology
For general family expenses commercial air conditioning system heat exchanger, as shown in Figure 1, have inlet/outlet pipe 31,32, header 33 is responsible for distributing and collecting refrigerant, and there is minim channel flat tube 34 inside, is responsible for the heat transfer between refrigerant and air when circulation refrigerant.Corrugated fin 35 is had to be responsible for strengthening heat transfer effect between flat tube.When flowing through fin 35 and flat tube 34 under the driving of air at blower fan, owing to there is temperature difference between air and refrigerant, the heat trnasfer between two media will be there will be.For condenser application, outflow of absorbing heat after air flowing; For evaporator application, outflow of dispelling the heat after air flowing.
For evaporimeter and heat pump application owing to relating to condensed water and frosting defrost problem, the modes of emplacement of heat exchanger can be put as the horizontal flat tube vertical direction of header, to facilitate draining.In order to make the cold medium flux of each flat tube inside balanced, a pipeline can be added in header inside, pipeline making different slotted eyes according to actual conditions and obtains good heat transfer effect.
In order to obtain good heat exchange area, two row's heat exchangers can be used.When some small spaces are applied, such as, during the application such as regenerator application, heat exchanger used for automobile air conditioning and water tank are parallel, also can use two row's heat exchangers or arrange heat exchanger more.For the heat exchanger of these routines above, along with the flow and heat transfer of refrigerant flow direction, the temperature of medium side can change, and the temperature of inlet air is consistent, heat exchange efficiency can be caused so unbalanced, and for the heat exchanger that indoor set is used, leaving air temp also can be uneven, user's comfort reduces.
In view of this, truly have and need to provide a kind of novel heat exchanger that can solve the problem at least in part.
Summary of the invention
Object of the present invention is intended at least one aspect solving the above-mentioned problems in the prior art and defect.
According to an aspect of the present invention, provide a kind of heat exchanger, comprising:
First header;
Second header, described first header and the spaced apart preset distance of the second header;
Multiple flat tube, described multiple flat tube to be spaced apart and arranged between the first header and the second header and to be communicated with the first header and the second header.At least one in described first header and the second header comprises arrange along its longitudinally at least two cavitys side by side, the first cavity in described at least two cavitys is connected with described flat tube, described first cavity is separated at least two sub-cavity sections by along the separator arranged perpendicular to described longitudinally, and all the other cavitys in described at least two cavitys are at least communicated with a described sub-cavity section.
Particularly, described at least two cavitys comprise at least three cavitys, and all the other cavitys of described at least three cavitys are at least connected with a described sub-cavity section.
Particularly, described at least three cavitys comprise three cavitys, and described at least two sub-cavity sections comprise the first sub-cavity section and the second sub-cavity section, and described first sub-cavity section is communicated with the second cavity, and described second sub-cavity section is communicated with described 3rd cavity.
Particularly, described first header has three cavitys, and fluid flow in the first sub-cavity section of the first cavity from the second cavity of described first header, flow in described second header via described flat tube; And/or fluid flow in the second sub-cavity section of described first header from the second header via described flat tube, flow to afterwards in the 3rd cavity of the first header.
Particularly, described second header has three cavitys; Fluid flow in the first sub-cavity section of the first cavity from the second cavity of described first header, flow in the 3rd cavity of described second header via described flat tube; And/or fluid flow in the described first sub-cavity section of its first cavity from the second cavity of described second header, flow to via described flat tube in the second sub-cavity section in the first cavity of described first header, flow to afterwards in the 3rd cavity of described first header.
Particularly, three cavitys of the first header communicate with each other by being arranged on hole wherein, groove or flat tube; And/or second three cavitys of header communicate with each other by being arranged on hole wherein, groove or flat tube.
Particularly, at least one in the cavity of described first header and/or the second header is provided with inlet tube for fluid turnover and/or outlet.
Particularly, the Multicarity header described in described heat exchanger passes through with at least two cavitys and/or the other separator be used in this Multicarity header, make described heat exchanger have following fluid path: single-flow-path and the fluid path at least two loops; Or at least two streams and the fluid path at least one loop.
Particularly, at least two cavitys in all the other cavitys at least three cavitys in described first and second headers except described first cavity are made up of pipe respectively, and the port of described pipe is used as the import and export of fluid.
Particularly, when described at least three cavitys are three cavitys, in described pipe, the cavity of the first pipe is used as the second cavity, and the second pipe in described pipe is used as the 3rd cavity.
Particularly, described at least two cavitys are two cavitys, and the second cavity in described two cavitys is made up of pipe, and the cavity of described pipe is used as described second cavity and is communicated with in described at least two sub-cavity sections.
Particularly, each of at least two sub-cavity sections of described first cavity is communicated with described flat tube, and described second cavity is connected with in described at least two sub-cavity sections.
Particularly, the port of described pipe is used as the import of fluid, and the first cavity of described first and second headers arranges the outlet of fluid respectively.
Particularly, described at least two sub-cavity sections include openning cavity section and go out openning cavity section, wherein enter openning cavity section and are communicated with flat tube by providing holes or groove.
Particularly, described at least three chambeies are formed by the dividing plate extended along its longitudinal direction in the first header and/or the second header, and all the other cavitys except the first cavity in described at least three cavitys are by being connected with the first cavity in the hole on dividing plate or groove.
Particularly, between adjacent at least one at least two cavitys in described first and second headers cavity, heat-insulation chamber is set.
Accompanying drawing explanation
These and/or other aspect of the present invention and advantage will become obvious and easy understand below in conjunction with in accompanying drawing description of preferred embodiments, wherein:
Fig. 1 is the view of the heat exchanger according to prior art;
Fig. 2 a is the view of the heat exchanger according to the first embodiment of the present invention;
Fig. 2 b is the sectional view of the heat exchanger of Fig. 2 a;
Fig. 2 c is the view of the fluid path of the heat exchanger of Fig. 2 a;
Fig. 3 is the exploded partial view of the header in the heat exchanger of Fig. 2 a;
Fig. 4 a is the view of heat exchanger according to a second embodiment of the present invention;
Fig. 4 b is the exploded partial view of header in the heat exchanger of Fig. 4 a;
Fig. 5 is the view of the flow direction of fluid in the heat exchanger of Fig. 4 a;
Fig. 6 is the view of heat exchanger according to the third embodiment of the invention;
Fig. 7 a is the exploded partial view of header in the heat exchanger of Fig. 6;
The view of Fig. 7 b header that to be the dismounting of Fig. 7 a a part of;
Fig. 8 is the view of heat exchanger according to a fourth embodiment of the invention.
Fig. 9 is the sectional view of the variation of header according to the first embodiment of the present invention;
Figure 10 is the sectional view of another variation of header according to the first embodiment of the present invention;
Figure 11 a and 11b respectively illustrates the view different cavitys in Multicarity header of the present invention being arranged the example of inlet tube and/or outlet;
Figure 12 shows has two stream multiloops and the view of fluid path with the heat exchanger of fluid reallocation function;
Figure 13 a and 13b respectively illustrates and to distribute with fluid and the view of heat exchanger of collecting function and the view of the multiloop fluid path of single-flow-path; With
Figure 14 a and 14b respectively illustrates the view of heat exchanger and the view of the multiloop fluid path of single-flow-path with multiloop setting flexibly.
Detailed description of the invention
Below by embodiment, and 2a-14b by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In the description, same or analogous drawing reference numeral indicates same or analogous parts.The explanation of following reference accompanying drawing to embodiment of the present invention is intended to make an explanation to present general inventive concept of the present invention, and not should be understood to one restriction of the present invention.
Specifically see Fig. 2 a, show the heat exchanger 10 according to the first embodiment of the present invention.This heat exchanger 10 comprises the first header 11, second header 12, flat tube 13 and fin (not shown).First header 11 and the spaced apart preset distance of the second header 12.Multiple flat tube 13 to be spaced apart and arranged between the first header 11 and the second header 12 and to be communicated with the first header 11 and the second header 12.Fin is arranged on flat tube 13 as required.
In the present embodiment, see Fig. 2 b, the first header 11 longitudinally comprised along described first header 11 arrange three cavity side by side.Described three cavitys comprise the first cavity 14, second cavity 15 and the 3rd cavity 16.Specifically see Fig. 3, first cavity 14 is connected with described flat tube 13, and described first cavity 14 is separated into four sub-cavity sections (but illustrate only two separators 17 in figure 3) by the separator 17 of arranging along the longitudinally perpendicular to described first header.Composition graphs 2a, described four sub-cavity sections comprise the sub-cavity section 142 of the first sub-cavity section 141, second, the 3rd sub-cavity section 143 and the 4th sub-cavity section 144.Those skilled in the art can arrange the number of the sub-cavity section in the number of header cavity and/or cavity as required.That is, in the present invention, header is arranged to Multicarity header.
In the present embodiment, the first sub-cavity section 141 is communicated with the 3rd cavity 16 respectively with the 3rd sub-cavity section 143, and the second sub-cavity section 142 is communicated with the second cavity 15 respectively with the 4th sub-cavity section 144; Described separator 17 can be set to partition or dividing plate.Those skilled in the art can be arranged as required, and other known modes can be adopted to substitute, and can also separate the cavity that other needs are separated as required.Particularly, as shown in Figure 3, separator is designed to semicircular dividing plate substantially.
In this example, see Fig. 2 b, second header 12 is also set to the multi-cavity structure comprising the first cavity 14 ', the second cavity 15 ' and the 3rd cavity 16 ', and the structure that separator 17 becomes multiple sub-cavity section is set in the first cavity 14 ', the first cavity 14 ' is set to the sub-cavity section 142 ' of the first sub-cavity section 141 ', second, the 3rd sub-cavity section 143 ' and the 4th sub-cavity section 144 '.Obviously, the second header 12 is arranged by the mode identical with the first header 11 in the present embodiment, therefore repeats no more.Certainly, the second header 12 can be set to single cavity structure or also can not arrange separator 17 in the second header as required by those skilled in the art as required.
See Fig. 2 b and Fig. 3, the first header 11 is provided with the dividing plate 18 of the longitudinally separation chamber along the first header 11, also can adopts other alternative separation chamber known in the art, be not limited to this.First header 11 is separated into three cavitys extended along its longitudinal direction by the first dividing plate 181 in dividing plate 18 and second partition 182.First dividing plate 181 is provided with the hole 19 be communicated with the first cavity 14 respectively with the 3rd cavity 16 in order to the second cavity 15.Those skilled in the art can be set to groove, flat tube as required or substitute with other known mode of communicating, are not limited to this.
The first hole 191 in hole 19 is in order to be communicated with the first cavity 14 and the 3rd cavity 16, and be arranged in the first sub-cavity section 141 and the 3rd sub-cavity section 143, the second hole 192 in hole 19 in order to be communicated with the first cavity 14 and the second cavity 15, and is arranged in the second sub-cavity section 142 and the 4th sub-cavity 144.First cavity 11 is provided with the multiple grooves 145 passed in order to flat tube 13.The first flat tube 131 in flat tube 13 is each passed through and is arranged on the second sub-cavity section 142 and is communicated with the first cavity 14 with the groove 145 in the 4th sub-cavity section 144, and is communicated with the second cavity 15 with the second hole 192 in the 4th sub-cavity section 144 respectively by the second sub-cavity section 142; The second flat tube 132 in flat tube 13 is each passed through and is arranged on the first sub-cavity section 141 and is communicated with the first cavity 14 with the groove 145 in the 3rd sub-cavity section 143, and is communicated with the 3rd cavity 16 with the first hole 191 in the 3rd sub-cavity section 143 respectively by the first sub-cavity section 141.
Correspondingly, one end of first flat tube 131 is connected to the second sub-cavity section 142 in the first header 11 and the 4th sub-cavity section 144 respectively, and be communicated with the second cavity 15, the other end is connected to the second sub-cavity section 142 ' in the second header 12 and the 4th sub-cavity section 144 ' respectively, and is communicated with the 3rd cavity 16 '.One end of second flat tube 132 is connected to the first sub-cavity section 141 in the first header 11 and the 3rd sub-cavity section 143 respectively, and be communicated with the 3rd cavity 16, the other end is connected to the first sub-cavity section 141 ' in the second header 12 and the 3rd sub-cavity section 143 ' respectively, and is communicated with the second cavity 15 '.Second cavity 15 of the first header 11 and the second cavity 15 ' of the second header 12 are respectively arranged with the entrance 151,151 ' of fluid, the 3rd cavity 16 of the first header 11 and the 3rd cavity 16 ' of the second header 12 are respectively arranged with the outlet 161,161 ' of fluid.Certainly, those skilled in the art also can arrange the port (as shown in Figure 9) of fluid as required on the first cavity of the first header and/or the second header, the first cavity 14 of the first header such as, are arranged the port one 46 of fluid.
In use, such as, first fluid in fluid flows in the second cavity 15 of the first header 11 by the entrance 151 of fluid, flow in the second sub-cavity section 142 and the 4th sub-cavity section 144 respectively by the second hole 192, flow to the second sub-cavity section 142 ' and the 4th sub-cavity section 144 ' of the second header 12 more respectively via the first flat tube 131, finally flow in the 3rd cavity 16 ' respectively by the second hole 192 that the first dividing plate 181 in the dividing plate 18 in the second header 12 is arranged and to converge and from the outlet 161 ' outflow heat exchanger 10 of fluid.Second fluid in fluid flows into the second cavity 15 ' from the entrance 151 ' of the fluid of the second header 12, flow in the first sub-cavity section 141 ' and the 3rd sub-cavity section 143 ' respectively by the first hole 191 that the second partition 182 in dividing plate 18 is arranged, in the first sub-cavity section 141 flowing to the first header 11 respectively by the second flat tube 132 again and the 3rd sub-cavity section 143, flow in the 3rd cavity 16 finally by the first hole 191 and to converge and from outlet 161 outflow heat exchanger 10 of fluid.
It should be noted that, in the first embodiment of the present invention, first header 11 and the second header 12 are arranged in an identical manner, and the view of the header therefore shown in Fig. 3 both can be the view of the first header 11, also can be the views of the second header 12.
In the present invention, no matter be for condenser or evaporimeter, can according to air-out needs or wind field distribution, the position in the multiloop each loop of arbitrary adjustment, namely, interval between flat tube adjacent in flat tube is identical or different, and the first flat tube in flat tube and the quantity of the second flat tube can be identical or different.But also the header with combining structure can be used in the present invention; By some partition parts, header inside division is become at least three cavitys, a cavity is responsible for being communicated with flat tube or conduct turnover oral cavity, remaining two cavity can connect inlet/outlet pipe, also can be used as the cavity of distribution and collecting function, also can be used as the tube connector between each loop.
Those skilled in the art can also arrange heat-insulation chamber between any two as required in multiple cavity, such as, as shown in Figure 10, between second cavity 15 and the 3rd cavity 16 of the first header 11, arrange heat-insulation chamber 25.Dividing plate is set in the present invention and the mode of communicating such as providing holes or groove thereon, heat exchanger can be divided into multiple independent stream like this, make a heat exchanger inside can run two or more refrigerants and carry out heat exchange simultaneously; And plural stream, the flow direction variation of refrigerant can be made, make the Temperature Distribution of heat exchanger surface comparatively even, to obtain balanced air-out effect, or the high efficiency of heat exchange; Can also, according to the distribution of wind field, make the runner quantity of each stream in multiple stream different.
See Fig. 4 a, the second embodiment according to heat exchanger of the present invention is shown.Heat exchanger 20 described in Fig. 4 a is distortion according to above-mentioned heat exchanger (as shown in Figure 2 a).The structure of heat exchanger 20 is substantially identical with the heat exchanger 10 shown in operation principle with Fig. 2 a, and difference is, specifically see Fig. 4 b, first cavity 14 of the first header 11 by the structure of separator 17 points in order to three sub-cavity sections, i.e. the first sub-cavity section 142 of sub-cavity section 141, second and the 3rd sub-cavity section 143.Those skilled in the art can arrange the number of sub-cavity section as required, can also separate other cavitys as required; Second header 12 is single cavity, is not namely isolated part and separates, or do not have multiple sub-cavity section.Second header 12 is communicated with the first header 11 by means of only flat tube 13, and does not arrange the import and export of fluid.See Fig. 4 b, the first dividing plate 181 in dividing plate 18 is provided with the hole 19 be communicated with the 3rd cavity 16 with the second cavity 15 respectively in order to the first cavity 141.Wherein, the first hole 191 in hole 19 in order to be communicated with the first cavity 14 and the second cavity 15, and is separately positioned in the first sub-cavity section 141 and the 3rd sub-cavity section 143; In hole 19, the second hole 192 is in order to be communicated with the first cavity 14 and the 3rd cavity 16, and is arranged in the second sub-cavity section 142.Those skilled in the art can carry out the quantity of providing holes 19 as required, and the quantity in the first hole 191 and the second hole 192 can be similar and different, and the interval in adjacent hole can be identical or different.
First header 11 is communicated with by flat tube 13 with the second header 12, wherein, one end of the first flat tube 131 in flat tube 13 is connected to the first sub-cavity section 141 and the 3rd sub-cavity section 143 respectively, and the first hole 191 in passing hole 19 is communicated with the second cavity 15, the other end is connected to the cavity 121 of the second header 12; One end of second flat tube 132 is connected to the second sub-cavity section 142, and is communicated with the 3rd cavity 16 by the second hole 192, and the other end is connected to the cavity 121 of the second header 12.
In conjunction with see Fig. 5, in use, such as fluid flows in the second cavity 15 from the entrance 151 the first header 11, flow in the first sub-cavity section 141 and the 3rd sub-cavity section 143 respectively by the first hole 191, flow to respectively by the first flat tube 131 again in the cavity 121 of the second header 12 and converge, and flow in the second sub-cavity section 142 of the first header 11 via the second flat tube 132, to flow in the 3rd cavity 16 finally by the second hole 192 and from fluid issuing 161 outflow heat exchanger 10.
In the present invention, single stream but diversified loop are arranged, and make those skilled in the art can arrange the position in loop according to wind field distribution, obtain the increase of heat exchange efficiency; Direction and the position of inlet/outlet pipe can also be designed as required flexibly.
See Fig. 6, show the 3rd embodiment according to heat exchanger of the present invention.Heat exchanger 30 shown in Fig. 6 is distortion according to above-mentioned heat exchanger (as shown in Figure 2 a).The structure of heat exchanger 30 is substantially identical with the heat exchanger 10 shown in operation principle with Fig. 2 a, difference is, specifically see 7a and 7b, the second cavity 15 in first header 11 and the 3rd cavity 16 are made up of pipe 20, and the second cavity 15 ' in the second header 12 and the 3rd cavity 16 ' are also made up of pipe 20.The port of pipe 20 has been arranged to the import and export of fluid, and pipe 20 arranges the hole 19 being communicated with the first cavity 14.The first hole 191 in hole 19 is communicated with cavity 16 and first cavity 14 of the second pipe 22 in pipe 20, and is arranged in the first sub-cavity section 141 and the 3rd sub-cavity section 143.Second hole 192 is communicated with cavity 15 and first cavity 14 of the first pipe 21 in pipe 20, and is arranged in the second sub-cavity section 142 and the 4th sub-cavity section 144.In the present embodiment, can the second header 12 be set in the mode identical with the first header 11, to make it have the structure identical with the first header 11, repeat them here.
See Fig. 8, show the 4th embodiment according to heat exchanger of the present invention.Heat exchanger 40 shown in Fig. 8 is distortion according to heat exchanger (as shown in Figure 6) as implied above.The structure of heat exchanger 40 is substantially identical with the heat exchanger 30 shown in operation principle with Fig. 6, difference is, in the first header 11 and the second header 12, a pipe 20 is respectively set as the fluid intake in respective header, the first header 11 and the second header 12 is made to be arranged respectively to have the first cavity and the second cavity, the cavity of the first pipe 23 in pipe 20 is as the second cavity 15 of the first header 11, the cavity of the second pipe 24 in pipe 20 is as the second cavity 15 ' of the second header 12, at the first cavity 14, the outlet 151 of multiple fluid is respectively arranged with on 14 ', 152, 151 ', 152 '.Namely outlet 151,152 is set respectively in the first sub-cavity section 141 and the 3rd sub-cavity section 143 of the first header 11, and the second sub-cavity section 142 is communicated with pipe 23 respectively by the first hole 191 in hole 19 with the 4th sub-cavity section 144; The second sub-cavity section 142 ' and the 4th sub-cavity section 144 ' of the second header 12 arrange outlet 151 ', 152 ' respectively, and the first sub-cavity section 141 ' is communicated with pipe 24 respectively by the second hole 192 in hole 19 with the 3rd sub-cavity section 143 '.
In use, first fluid in fluid enters the second cavity 15 by the port of the first pipe 23 in the first header 11, flow in the second sub-cavity section 142 and the 4th sub-cavity section 144 respectively by the first hole 191 again, in the second sub-cavity section 142 ' flowing to the second header 12 via the first flat tube 131 and the 4th sub-cavity section 144 ', the outlet 151 ', 152 ' finally respectively by fluid is flowed out.Second fluid in fluid enters the second cavity 15 ' by the port of the second pipe 24 in the second header 12, flow in the first sub-cavity section 141 ' and the 3rd sub-cavity section 143 ' respectively by the second hole 192 again, in the first sub-cavity section 141 flowing to the first header 11 via the second flat tube 132 and the 3rd sub-cavity section 143, the outlet 151,152 finally respectively by fluid is flowed out.
Should be appreciated that the first header and the second header can be the Multicarity headers with at least two cavitys in the present invention.See Figure 11 a and 11b, when illustrating that Multicarity header has three cavitys, the example of the concrete setting of inlet/outlet pipe.Such as, see Figure 11 a, inlet/outlet pipe 147 can be separately positioned on the second cavity 15 and the 3rd cavity 16.See Figure 11 b, on the first cavity 14 that inlet/outlet pipe 147 can be arranged on header and the 3rd cavity 16.Needs illustrate, as required, inlet/outlet pipe 147 can be chosen to inlet tube or outlet.
Known by the description of above-mentioned each embodiment, have in the heat exchanger of the header of Multicarity in illustrated, each cavity in described Multicarity header can be provided with inlet tube and/or outlet.Certainly, have as needed and distribute and collect the function of fluid, then need two cavitys below such as shown in Fig. 2 b (or second and the 3rd cavity) arrange inlet tube and outlet as required.For the application of some condenser, do not need distribution function, inlet tube and/or outlet can be set in the upper cavity as shown in Figure 2 b of its Multicarity header.
In addition, about Fig. 2 a-2c, the combination by Multicarity header of the present invention and the other separator for dividing plate is shown, makes the fluid path of heat exchanger 10 be configured to two stream single loops.
See Figure 12, and can also be the combination of separator of dividing plate by Multicarity header of the present invention, make the fluid path of heat exchanger be configured to two stream multiloops, and make a part of cavity in Multicarity header have the function of reallocation fluid, as shown by the arrow.In view of its realization is only isolate different cavitys and/or sub-cavity section by dividing plate or separator in cavity in Multicarity header, and be communicated with them as required, therefore no longer this be described in detail at this.
See Figure 13 a and 13b, show header and distribute with fluid and the example of heat exchanger 50 of collecting function.As shown in the figure, this heat exchanger is configured to the multiloop fluid path of single-flow-path.Be similar to the heat exchanger shown in Fig. 4 a and 4b, their difference is that the header on the top of the heat exchanger in Fig. 4 a and 4b is that conventional pipe is arranged, the device of fluid of not reallocating; And in this example, the header on this top is also the Multicarity header with three cavitys, the function that fluid regathers distribution is arranged in the inside.
The header of the heat exchanger shown in Figure 13 a and 13b is all arranged to have three cavitys, i.e. the first cavity 14 and the 14 ', second cavity 15 and the 15 ' and the 3rd cavity 16 and 16 ' (bracket in diagram represents that this cavity is invisible in this view).Particularly, the first cavity 14 is separated into three sub-cavity sections 141,142 and 143 by separator, the first cavity 14 ' is become three sub-cavity sections 141 ', 142 ' and 143 ' by baffle for separating.Fluid flow in the second cavity 15 of header from inlet tube 151, and the mode of passing hole, groove or flat tube flow into first and the 3rd in sub-cavity section 141 and 143, afterwards by flat tube 13 flow into first and the 3rd sub-cavity section 141 ' and 143 ' in.Then the mode of passing hole, groove or flat tube flows in the second cavity 15 ' and the 3rd cavity 16 ' successively, and the mode of passing hole or groove or flat tube flows into the second sub-cavity section 142 ' from the 3rd cavity 16 '.Finally, flow through the second sub-cavity section 142 and the 3rd cavity 16 successively by flat tube 13, and flow out from outlet 161.
It should be noted that, in this example, being communicated with between sub-cavity section and the cavity in header can the mode of passing hole, groove or flat tube realize.In addition, the header on the top shown in Figure 13 a only can be arranged to have two cavitys also can realize above-mentioned function, namely from first and the 3rd sub-cavity section 141 ' and 143 ' fluid flow into the second cavity 15 ', flow in the second sub-cavity section 142 ' by the second cavity 15 ' afterwards; The second sub-cavity section 142 is flowed into finally by flat tube 13.Other parts are identical with the situation that top header arranges three cavitys, therefore are not described in detail at this.
By the function that the cavity in above-mentioned known, described Multicarity header plays fluid distribution and collects.
In addition, should be appreciated that in certain circumstances, can by flat tube 13 being directly inserted into the second cavity 15 ' shown in Figure 13 a and being communicated with these two cavitys in the second cavity 15.That is, in the various embodiments of the invention, flat tube directly can be inserted in cavity as required and connect or be communicated with corresponding cavity.
See Figure 14 a and 14b, show the example of header with multiloop heat exchanger.As shown in the figure, this heat exchanger is configured to the multiloop fluid path of single-flow-path.The difference of the stream of the heat exchanger shown in itself and Figure 13 a and 13b is, the position of dividing plate is different and sub-cavity section is different with the mode of communicating of the second cavity, the 3rd cavity.
Be similar to the heat exchanger shown in Fig. 2 a and 2b, the header of the heat exchanger shown in Figure 14 a and 14b is all arranged to have three cavitys, i.e. the first cavity 14 and the 14 ', second cavity 15 and the 15 ' and the 3rd cavity 16 and 16 '.Particularly, the first cavity 14 is separated into three sub-cavity sections 141,142 and 143 by separator, the first cavity 14 ' is become three sub-cavity sections 141 ', 142 ' and 143 ' by baffle for separating.Fluid flow in the second cavity 15 of header from inlet tube 151, and the mode of passing hole, groove or flat tube flow into the first sub-cavity section 141, flow into the first cavity section 141 ' afterwards by flat tube 13, flow into subsequently in the 3rd cavity 16 '.Fluid from the 3rd cavity 16 ' flow in the 3rd sub-cavity section 143 ' by the mode of such as hole, groove or flat tube, and flow in the 3rd sub-cavity section 143 through flat tube 13, and then such as flow in the second sub-cavity section 142 ' by means of only flat tube 13.Fluid in second sub-cavity section 142 ' flow in the second sub-cavity section 142 through flat tube 13, and the mode of passing hole, groove or flat tube flows into the 3rd cavity 16 successively, and flows out from outlet 161.
In addition, the heat exchanger of band repeated dispensing and collection fluid function, can obtain relatively uniform leaving air temp.
Be appreciated that the Multicarity header described in can passing through with at least two cavitys and/or the other separator be used in this Multicarity header, make described heat exchanger have following fluid path:
Single-flow-path and the fluid path at least two loops; Or
At least two streams and the fluid path at least one loop.
Such as, by using other separator to be separated into multiple sub-cavity section in the mode being similar to separation first cavity such as second in Multicarity header and the 3rd cavity, and be communicated with them as required, thus realize above-mentioned different fluid path.
Being directed to different application, there is following defect in usual heat exchanger:
1) heat transfer temperature difference of whole heat exchanger surface is uneven, and heat transfer effect is bad;
2) for indoor set, leaving air temp is uneven, and comfort is bad;
3) single refrigerant can only be used;
4) certain applications need with two row's heat exchangers, and cost increases;
5) for multithread pipeline heat exchanger, the more difficult design of distributing pipe;
6) loop design method is single.
Known by foregoing description, at least one above-mentioned embodiment of the present invention overcomes the defect at least partially of above-mentioned prior art.
That is, at least some embodiment in the above embodiments of the present invention has following characteristics and advantage:
Feature:
1) there are at least three cavitys in header inside;
2) use the connection between dividing plate and internal spacer that heat exchanger can be made to have at least two independently streams, heat exchanger can also be made to have single-flow-path multiloop flexibly;
Advantage:
1) there is the many flow path designs of distribution function;
2) multiple import and multiple exit design;
3) loop is arranged flexibly;
4) temperature of heat exchanger surface relative equilibrium, makes with external agency heat exchange efficiency higher;
5) one-row heat exchanger can be used as two row's heat exchangers uses, and cost reduces;
6) flowing of staggered form refrigerant can be done, obtain relatively uniform leaving air temp, increase the comfort of air-conditioning.
These are only some embodiments of the present invention, those skilled in the art will appreciate that, when not deviating from principle and the spirit of this present general inventive concept, can make a change these embodiments, scope of the present invention is with claim and their equivalents.
Claims (11)
1. a heat exchanger, comprising:
First header;
Second header, described first header and the spaced apart preset distance of the second header;
Multiple flat tube, described multiple flat tube to be spaced apart and arranged between the first header and the second header and to be communicated with the first header and the second header;
It is characterized in that,
At least one in described first header and the second header comprises arrange along its longitudinally at least three cavitys side by side, the first cavity in described at least three cavitys is connected with described flat tube, described first cavity is separated at least two sub-cavity sections by along the separator arranged perpendicular to described longitudinally, and all the other cavitys in described at least three cavitys are at least communicated with a described sub-cavity section.
2. heat exchanger according to claim 1, is characterized in that,
Described at least three cavitys comprise three cavitys, and described at least two sub-cavity sections comprise the first sub-cavity section and the second sub-cavity section, and described first sub-cavity section is communicated with the second cavity, and described second sub-cavity Duan Yu tri-cavity is communicated with.
3. heat exchanger according to claim 2, is characterized in that,
Described first header has three cavitys,
Fluid flow in the first sub-cavity section of the first cavity from the second cavity of described first header, flow in described second header via described flat tube; And/or
Fluid flow in the second sub-cavity section of described first header from the second header via described flat tube, flow to afterwards in the 3rd cavity of the first header.
4. heat exchanger according to claim 3, is characterized in that,
Described second header has three cavitys;
Fluid flow in the first sub-cavity section of the first cavity from the second cavity of described first header, flow in the 3rd cavity of described second header via described flat tube; And/or
Fluid flow in the described first sub-cavity section of its first cavity from the second cavity of described second header, flow to via described flat tube in the second sub-cavity section in the first cavity of described first header, flow to afterwards in the 3rd cavity of described first header.
5. heat exchanger according to claim 3, is characterized in that,
Three cavitys of the first header communicate with each other by being arranged on hole wherein, groove or flat tube; And/or
Three cavitys of the second header communicate with each other by being arranged on hole wherein, groove or flat tube.
6. the heat exchanger according to any one of claim 1-5, is characterized in that,
At least one in the cavity of described first header and/or the second header is provided with the inlet tube and/or outlet that pass in and out for fluid.
7. the heat exchanger according to any one of claim 1-5, is characterized in that,
The Multicarity header described in described heat exchanger passes through with at least three cavitys and/or the other separator be used in this Multicarity header, make described heat exchanger have following fluid path:
Single-flow-path and the fluid path at least two loops; Or
At least two streams and the fluid path at least one loop.
8. the heat exchanger according to any one of claim 1-5, is characterized in that,
At least two cavitys in all the other cavitys at least three cavitys in described first and second headers except described first cavity are made up of pipe respectively, and the port of described pipe is used as the import and export of fluid.
9. heat exchanger according to claim 8, is characterized in that,
When described at least three cavitys are three cavitys, in described pipe, the cavity of the first pipe is used as the second cavity, and the second pipe in described pipe is used as the 3rd cavity.
10., according to described heat exchanger arbitrary in claim 1-5, it is characterized in that,
Described at least three chambeies are formed by the dividing plate extended along its longitudinal direction in the first header and/or the second header, and all the other cavitys except the first cavity in described at least three cavitys are by being connected with the first cavity in the hole on dividing plate or groove.
11., according to the arbitrary described heat exchanger in claim 1-5, is characterized in that,
Between cavity adjacent at least one at least three cavitys in described first and second headers, heat-insulation chamber is set.
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| CN201410058750.4A CN103776282B (en) | 2014-02-20 | 2014-02-20 | Heat exchanger |
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| CN201410058750.4A CN103776282B (en) | 2014-02-20 | 2014-02-20 | Heat exchanger |
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| CN103776282B true CN103776282B (en) | 2015-08-05 |
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| CN103983126B (en) | 2014-05-28 | 2016-08-24 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN105674788B (en) * | 2014-11-18 | 2018-10-02 | 丹佛斯微通道换热器（嘉兴）有限公司 | Header and heat exchanger |
| CN109647093B (en) * | 2019-01-31 | 2021-04-13 | 江苏师范大学 | Gas condenser and environment-friendly air dust removal device |
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