CN103528284B - Multi-online air-conditioning system and condenser thereof - Google Patents
Multi-online air-conditioning system and condenser thereof Download PDFInfo
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- CN103528284B CN103528284B CN201310437450.2A CN201310437450A CN103528284B CN 103528284 B CN103528284 B CN 103528284B CN 201310437450 A CN201310437450 A CN 201310437450A CN 103528284 B CN103528284 B CN 103528284B
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- 238000004378 air conditioning Methods 0.000 title claims description 11
- 230000000712 assembly Effects 0.000 abstract description 19
- 238000000429 assembly Methods 0.000 abstract description 19
- 239000003507 refrigerant Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 8
- 238000004781 supercooling Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
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Abstract
The invention discloses a kind of condenser, comprising: input house steward, current divider, collector, delivery trunk, and be connected to the multipair stream between described current divider and collector; Wherein, each stream comprises: two points of input pipes, three-way pipe, two branch roads and Tiao He roads; The input port of described two points of input pipes is connected with an output port of described current divider, and two output port is connected with the arrival end of two branch roads respectively; Article two, the port of export of branch road is connected with the arrival end closing road by three-way pipe; First flow path in one flow path and the second stream are for being disposed adjacent.Application the present invention, can avoid the re-heat based on the condenser of three row condenser assemblies to lose.
Description
Technical Field
The invention relates to the air conditioning technology, in particular to a multi-split air conditioning system and a condenser thereof.
Background
At present, a multi-split air conditioning system is generally shown in fig. 1, and includes: at least one unit; one unit includes an outdoor unit, a controller configured for the outdoor unit, and a plurality of outdoor units.
As shown in fig. 2, the outdoor unit includes: compressor, condenser, throttling arrangement.
The high-temperature and high-pressure refrigerant gas discharged from the discharge port of the outdoor unit compressor is changed into a low-temperature and low-pressure liquid refrigerant by the condenser and the throttle device in order, and then flows into the evaporator of the indoor unit. The condenser is divided into a supercooling loop and a non-supercooling loop, and the high-temperature and high-pressure gaseous refrigerant is converted into a low-temperature and high-pressure liquid refrigerant through heat exchange between the non-supercooling loop and outdoor air, and then enters the supercooling loop to release heat outwards to obtain a larger supercooling degree.
In order to improve the heat exchange efficiency between the high-temperature and high-pressure gaseous refrigerant and the outdoor air, the condenser usually adopts counter-flow heat exchange, the input main pipe of the condenser is arranged at the air supply port side of the condenser, the output main pipe of the condenser is arranged at the air return port side of the condenser, and a relatively common condenser structure is shown in fig. 3 and comprises: an input manifold, a splitter, a collector, an output manifold, and a plurality of flow paths connected between the splitter and the collector;
the input manifold is connected to the input of the flow splitter and the refrigerant flows from the input manifold into the condenser.
Each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected;
each output end of the flow divider is respectively connected with the input ports of the two-way input pipes of each flow path;
in a flow path, two output ports of a two-branch input pipe of the flow path are respectively connected with inlet ends of two branches of the flow path; the outlet ends of the two branches are connected with the inlet end of the combination of the flow path through the three-way pipe; the refrigerant is converged from the outlet ends of the two branches to the inlet end of the combining path through the tee pipe.
One flow path includes a set of end plate through holes provided in the end plate; the end plate through holes included in one flow path may include three rows: the first row of end plate through holes are positioned on the air return side of the condenser, the second row of end plate through holes are positioned on the air outlet side of the condenser, and the third row of end plate through holes are positioned between the first row of end plate through holes and the second row of end plate through holes.
A pair of end plate through holes in one row of end plate through holes are connected to one condenser module, whereby one flow path includes one set of condenser modules, specifically three rows of condenser modules: the condenser comprises a first row of condenser assemblies positioned on the air return opening side of the condenser, a second row of condenser assemblies positioned on the air outlet side of the condenser, and a third row of condenser assemblies positioned between the first row of end plate through holes and the second row of end plate through holes. The condenser assembly may specifically be a U-shaped internally threaded copper tube.
The combination of the flow paths is composed of a first row of end plate through holes which are connected with the flow path and are positioned on the side of the air return port, condenser assemblies or elbows which are connected from the head hole to the tail hole, namely, the first row of condenser assemblies of the flow path and the elbows of the adjacent condenser assemblies in the first row of condenser assemblies which are used for connecting the flow path.
For example, the number of the first row of the end plate through holes of the flow path on the return air inlet side is 4; the first hole is connected with the 2 nd end plate through hole through a condenser assembly, the 2 nd end plate through hole is connected with the 3 rd end plate through hole through an elbow, and the 3 rd end plate through hole is connected with the tail hole through the condenser assembly; the first hole is used as the inlet end of the combining path; the tail hole is used as the outlet end of the combining path.
The two branches of the flow path are respectively arranged at two sides of the two-branch input pipe of the flow path; one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes. The second row of condenser assemblies in the flow path comprises condenser assemblies which are connected from a head hole to a tail hole on a second row of end plates of the flow path and positioned on the side of the air return port; the third row of condenser assemblies in the flow path comprises the condenser assemblies which are connected from the head hole to the tail hole on the third row of end plates positioned on the air return port side of the flow path;
for example, the number of the second row of end plate through holes on the air outlet side of one branch of the flow path is 2, and the second row of end plate through holes are connected through a condenser assembly; the number of the third row of end plate through holes of the branch is 2, and the third row of end plate through holes are connected through a condenser assembly; one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
The input ends of the collector are respectively connected with the outlet ends of the combination paths of the flow paths, and the refrigerants of the flow paths flow into the collector and are converged into the collector, and are output to an output header pipe through the output end of the collector and flow out of the condenser.
The inventor of the present invention found that the internal structure of the existing condenser causes reheat loss for the following reasons: the outlet ends of two adjacent flow paths are not adjacently arranged, so that the temperature of the refrigerant after the outlet end of one flow path is condensed is influenced by the refrigerant with relatively high temperature which does not completely exchange heat in the condenser assembly of the other flow path adjacent to the outlet end, and the reheat loss is generated.
Although the prior art provides a condenser structure based on two rows of condenser assemblies for avoiding reheat loss, the structure cannot be applied to a condenser based on three rows of condenser assemblies; therefore, there is a need for a condenser based on a three-row condenser package that avoids reheat losses.
Disclosure of Invention
The invention aims to provide a multi-split air conditioning system and a condenser thereof, which avoid the reheat loss of the condenser based on three rows of condenser assemblies.
According to an aspect of the present invention, there is provided a condenser, including: input house steward, shunt, collector, output house steward, it still includes:
a plurality of pairs of flow paths connected between the flow splitter and the collector;
each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected;
the input port of the binary input pipe is connected with one output port of the splitter, and the two output ports of the binary input pipe are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combiner through the three-way pipe;
for a pair of flow paths, a first flow path and a second flow path are arranged adjacently, the inlet end of the combination of the first flow paths is arranged as the first hole of the first row of the end plate through holes of the first flow path on the air return port side of the condenser, and the outlet end of the combination of the first flow paths is arranged as the tail hole of the first row of the end plate through holes of the first flow path on the air return port side;
the inlet end of the combination path of the second flow path is set as the tail hole of the second flow path in the first row of the end plate through holes on the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole of the second flow path in the first row of the end plate through holes on the air return port side;
the combination of the flow paths is composed of a condenser assembly or an elbow connected between the first row of end plate through holes on the air return port side of the flow path.
Preferably, the two branches of the flow path are respectively arranged at two sides of the two-branch input pipe of the flow path; one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes.
Preferably, the number of the first row of end plate through holes of the flow path on the air return port side is 4;
wherein, be connected through the condenser subassembly between head hole and the 2 nd end plate through-hole, be connected through the elbow between the 2 nd end plate through-hole and the 3 rd end plate through-hole, be connected through the condenser subassembly between 3 rd end plate through-hole and the tail hole.
Preferably, the number of the second row of end plate through holes of one branch of the flow path on the air outlet side is 2, and the second row of end plate through holes are connected through a condenser assembly; and the third row of end plate through holes of the branch are 2 and are connected through the condenser assembly; and one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
According to another aspect of the present invention, there is provided a condenser, including: input house steward, shunt, collector, output house steward, it still includes:
a plurality of pairs of flow paths connected between the flow splitter and the collector; the flow path comprises a cross-over flow path and a normal flow path;
each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected; the input port of the binary input pipe is connected with one output port of the splitter, and the two output ports of the binary input pipe are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combiner through the three-way pipe;
for a pair of normal flow paths, a first flow path and a second flow path are arranged adjacently, the inlet end of the merging path of the first flow path is arranged as the first hole in the first row of the end plate through holes of the first flow path on the air return port side of the condenser, and the outlet end of the merging path of the first flow path is arranged as the tail hole in the first row of the end plate through holes of the first flow path on the air return port side;
the inlet end of the combination path of the second flow path is set as the tail hole of the second flow path in the first row of the end plate through holes on the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole of the second flow path in the first row of the end plate through holes on the air return port side;
the combination of the flow paths is composed of a condenser assembly or an elbow connected between the first row of end plate through holes on the air return port side of the flow path;
for a pair of cross-over type flow paths, a third flow path and a fourth flow path are arranged adjacently, the inlet end of the combination of the third flow path is arranged as the first hole of the first row of the end plate through holes of the third flow path on the air return port side of the condenser, and the outlet end of the combination of the third flow path is arranged as the first hole of the fourth flow path in the first row of the end plate through holes on the air return port side;
the inlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the fourth flow path on the air return port side, and the outlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the third flow path on the air return port side;
the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the third flow path comprise a cross-pipe input hole and a cross-pipe output hole; the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the fourth flow path comprise a cross-pipe input hole and a cross-pipe output hole;
the pipe spanning input holes in the first row of the end plate through holes of the third flow path are connected with the pipe spanning output holes in the first row of the end plate through holes of the fourth flow path through first pipe spanning; a pipe spanning input hole in the first row of the end plate through holes of the fourth flow path is connected with a pipe spanning output hole in the first row of the end plate through holes of the third flow path through a second pipe spanning;
the combination of the third flow path is composed of a condenser assembly or an elbow, a first cross pipe and a condenser assembly or an elbow, wherein the condenser assembly or the elbow is connected with a first row of end plate through holes of the third flow path from a head hole to a cross pipe input hole, and the condenser assembly or the elbow is connected with a first row of end plate through holes of the fourth flow path from a cross pipe output hole to a tail hole;
the combination of the fourth flow path is formed by a first row of end plate through holes connected to the fourth flow path from the tail hole to the condenser assembly or elbow of the cross-over pipe input hole, a second cross-over pipe, and a first row of end plate through holes connected to the fourth flow path from the cross-over pipe output hole to the condenser assembly or elbow of the head hole.
Preferably, the two branches of the flow path are respectively arranged at two sides of the two-branch input pipe of the flow path;
one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes.
Preferably, the number of the first row of the end plate through holes of the first/second flow path on the air return port side of the condenser is 4; wherein, be connected through the condenser subassembly between head hole and the 2 nd end plate through-hole, be connected through the elbow between the 2 nd end plate through-hole and the 3 rd end plate through-hole, be connected through the condenser subassembly between 3 rd end plate through-hole and the tail hole.
Preferably, the number of the first row of the end plate through holes of the third flow path on the return air inlet side of the condenser is 4; in the third flow path: the first hole is connected with the 2 nd end plate through hole serving as a cross-pipe input hole of the third flow path through a condenser assembly, and the 3 rd end plate through hole serving as a cross-pipe output hole of the third flow path is connected with the tail hole through the condenser assembly;
the number of the first row of end plate through holes of the fourth flow path, which are positioned on the air return port side of the condenser, is 4; in the fourth flow path: the tail hole is connected with a 3 rd end plate through hole of a cross pipe input hole serving as a fourth flow path through a condenser assembly, and a 2 nd end plate through hole of a cross pipe output hole serving as the fourth flow path is connected with the head hole through the condenser assembly.
Preferably, the number of the second row of end plate through holes of one branch of the flow path on the air outlet side is 2, and the second row of end plate through holes are connected through a condenser assembly; and the third row of end plate through holes of the branch are 2 and are connected through the condenser assembly; and one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
According to another aspect of the present invention, there is provided a multi-split air conditioning system including the condenser described above.
According to the technical scheme, the inventor of the invention considers that the flow lengths of all the flow paths of the condenser with three rows of condenser assemblies are set to be equal, the output ends of the adjacent two flow paths are adjacent through the three-way pipes with different structures, the reheat loss of the output ends of all the flow paths is avoided, and meanwhile, the flow length of the convection flow path is lengthened by jumping over the pipes to connect the condenser assemblies in the pair of flow paths with relatively poor heat exchange effect in consideration of the factor of a wind field, so that the heat exchange effect of the convection flow path is improved, the heat exchange of the refrigerant between the flow paths is uniform, and the reheat loss can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of the invention and that other embodiments and drawings may be devised by those skilled in the art based on the exemplary embodiments shown in the drawings.
Fig. 1 is a schematic structural view of a multi-split air conditioning system in the prior art;
fig. 2 is a schematic view of an internal structure of an outdoor unit in the prior art;
FIG. 3 is a schematic diagram of a prior art condenser;
fig. 4 is a schematic view illustrating an internal structure of an outdoor unit of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 5 is a schematic view of an internal structure of a condenser according to a first embodiment of the present invention;
fig. 6 is a schematic view of an internal structure of a condenser according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
The inventor of the invention considers that the flow lengths of all the flow paths of the condenser of three rows of condenser components are set to be equal, the output ends of the two adjacent flow paths are adjacent by adopting three-way pipes with different structures, so that the reheat loss of the output ends of all the flow paths is avoided, and simultaneously, the flow length of the convection flow path is lengthened by jumping over the pipes to connect the condenser components in a pair of flow paths with relatively poor heat exchange effect in consideration of the factor of a wind field, so that the heat exchange effect of the convection flow path is improved, the refrigerant between the flow paths is uniformly exchanged, and the reheat loss can be avoided.
The technical scheme of the invention is explained in detail in the following with the accompanying drawings. An internal structure of an outdoor unit according to an embodiment of the present invention is shown in fig. 4, and the outdoor unit includes: compressor 401, condenser 402, throttle device 403, subcooler 404, electronic expansion valve 405.
The discharge port of the outdoor compressor 401 is connected to the inlet manifold of the condenser 402 via a refrigerant line; the refrigerant pipeline connected with the main outlet pipe of the condenser has two branches, and the first branch is connected with the suction port of the compressor 401 through an electronic expansion valve 405 and a subcooler 404 in sequence; the second branch is connected with an inlet of the subcooler 404, and an outlet of the subcooler 404 is connected with an indoor unit of the unit where the outdoor unit is located;
the high-temperature high-pressure gas refrigerant discharged from the exhaust port of the compressor 401 flows into the condenser 402, exchanges heat with outdoor air to become low-temperature high-pressure liquid refrigerant, one path of the low-temperature high-pressure liquid refrigerant enters the subcooler 404 for subcooling, then is input into the indoor unit of the unit where the outdoor unit is located, the other path of the low-temperature high-pressure liquid refrigerant flows out from the outlet pipe of the condenser 402, throttles and reduces pressure by the electronic expansion valve 405, enters the subcooler 404 for evaporation, absorbs heat, and returns to the compressor 401 through the air suction port. Therefore, the condenser is combined with the subcooler, the condensed refrigerant is subcooled for the second time, and the supercooling degree of the refrigerant is improved.
The tube diameter and the tube spacing of the inner fins of the subcooler 404 are optimized, the tube diameter is optimized from 19.05mm to 15.88mm, the tube spacing is optimized from 1mm to 0.6mm, and the coefficients of the subcooler before and after optimization are shown in the following table 1.
TABLE 1
In table 1, it is obvious that the optimized coefficients are better than the coefficients before optimization, and the performance of the subcooler 404 is effectively improved.
Further, the outdoor unit further includes: a first temperature sensor 406, a second temperature sensor 407;
the first temperature sensor 406 is arranged on a refrigerant pipeline connected with an outlet of the subcooler 404 and used for collecting the temperature of the refrigerant at the outlet of the subcooler 404;
the second temperature sensor 407 is disposed on a refrigerant pipeline connected to the suction port of the compressor 401, and is configured to collect a refrigerant temperature at the suction port of the compressor 401;
the controller provided for this indoor unit controls an opening degree signal output to the electronic expansion valve 405 based on data transmitted from the first temperature sensor 406 and the second temperature sensor 407, and adjusts the opening degree of the electronic expansion valve 405.
Example one
Fig. 5 is a schematic structural diagram of a condenser according to an embodiment of the present invention, where the condenser includes: an input manifold 501, a flow splitter 502, a collector 503, an output manifold 504, and at least two flow paths connected between the flow splitter 502 and the collector 504;
the input manifold 501 is arranged at the air outlet side of the condenser and connected with the input port of the splitter 502, the splitter 502 has output ports in accordance with the number of flow paths, the input port of the input pipe of each flow path is connected with one output port of the splitter 502, the input pipe of each flow path has two output ports, each flow path has one output pipe, the collector has input ports in accordance with the number of flow paths, the output pipe of each flow path is respectively connected with one input port of the collector 504, and the output port of the collector 504 is connected with the output manifold.
Each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected; wherein, the input port of the two-branch input pipe of the flow path is connected with one output port of the flow divider 502, and the two output ports are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combiner through a three-way pipe, and the outlet end of the combiner is connected with one input port of the collector;
the two branches of each flow path are respectively arranged at two sides of the two-branch input pipe of the flow path; the branches of the flow path may be the same in structure as the branches of the flow path in the existing condenser: one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise 4 second row of end plate through holes of the flow path, which are positioned at the air outlet side of the condenser, a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes, and a first row of end plate through holes positioned at the air return port side; wherein,
the first hole is connected with the 2 nd end plate through hole through a condenser assembly, the 2 nd end plate through hole is connected with the 3 rd end plate through hole through an elbow, and the 3 rd end plate through hole is connected with the tail hole through the condenser assembly.
The number of the second row of end plate through holes of one branch of each flow path, which are positioned on the side of the air outlet, is 2, and the second row of end plate through holes are connected through a condenser assembly; the number of the third row of end plate through holes of the branch is 2, and the third row of end plate through holes are connected through a condenser assembly; one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
The first flow path and the second flow path in the pair of flow paths are arranged adjacently, wherein the inlet end of the combination path of the first flow path is arranged as the first hole in the first row of the end plate through holes of the first flow path, which are positioned at the air return opening side of the condenser, and the outlet end of the combination path of the first flow path is arranged as the tail hole in the first row of the end plate through holes of the first flow path, which are positioned at the air return opening side; the inlet end of the combination path of the second flow path is set as the tail hole in the first row of the end plate through holes of the current flow path positioned at the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole in the first row of the end plate through holes of the current flow path positioned at the air return port side; the flow path junction is formed by a condenser unit or an elbow connected between the first row of end plate through holes on the return air inlet side of the flow path.
The first through hole of the first row of end plates is used as a first hole and the last through hole is used as a tail hole from top to bottom along the vertical direction of the condenser on an outdoor unit of the multi-split air conditioning system.
In the following pair of flow paths, the refrigerant flows in the following direction
In the first flow path, one refrigerant introduced from the two-way input pipe 5051 passes through the third row of condenser modules 5071, the elbow 5081, and the second row of condenser modules 5072 in this order, and the other refrigerant introduced from the two-way input pipe 5051 passes through the third row of condenser modules 5073, the elbow 5082, and the second row of condenser modules 5073 in this order, and the two refrigerant branches are joined by the three-way pipe 5061 and then output to the output pipe via the first row of condenser modules 5074, the elbow 5083, and the first row of condenser modules 5075 in this order.
In the second flow path adjacent to the first flow path, one refrigerant flow entering from the two-way input pipe 5052 passes through the third row of condenser modules 5076, the elbow 5084, and the second row of condenser modules 5077 in this order, and the other refrigerant flow entering from the two-way input pipe 5052 passes through the third row of condenser modules 5078, the elbow 5085, and the second row of condenser modules 5079 in this order, and the two refrigerant branches join together via the three-way pipe 5062 and are output to the output pipe via the first row of condenser modules 50710, the elbow 5086, and the first row of condenser modules 50711 in this order.
Example two
Fig. 6 is a schematic structural diagram of a condenser according to a second embodiment of the present invention, where the condenser includes: the condenser includes: an input manifold 601, a flow splitter 602, a collector 603, an output manifold 604, and at least two flow paths connected between the flow splitter 602 and the collector 604;
the input manifold 601 is disposed on the outlet side of the condenser and connected to the input port of the flow divider 602, the flow divider 602 has output ports corresponding to the number of flow paths, the input port of the input pipe of each flow path is connected to one output port of the flow divider 602, the input pipe of each flow path has two output ports, each flow path has one output pipe, the collector has input ports corresponding to the number of flow paths, the output pipe of each flow path is connected to one input port of the collector 604, and the output port of the collector 604 is connected to the output manifold.
Each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected;
the input port of the two-part input pipe is connected with one output port of the splitter, and the two output ports of the two-part input pipe are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combining path through a three-way pipe;
the two branches of each flow path are respectively arranged at two sides of the two-branch input pipe of the flow path;
the branches of the flow path may be the same in structure as the branches of the flow path in the existing condenser: one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes.
The number of the second row of end plate through holes of one branch of the flow path, which are positioned on the air outlet side, is 2, and the second row of end plate through holes are connected through a condenser assembly; and the third row of end plate through holes of the branch are 2 and are connected through the condenser assembly; one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
Further, the flow path in the condenser of the second embodiment may include a cross-over flow path and a normal flow path;
for a pair of normal flow paths, a first flow path and a second flow path are arranged adjacently, the inlet end of the combination path of the first flow path is arranged as the first hole in the first row of the end plate through holes of the first flow path on the air return side of the condenser, and the outlet end of the combination path of the first flow path is arranged as the tail hole in the first row of the end plate through holes of the first flow path on the air return side; the inlet end of the combination path of the second flow path is set as the tail hole in the first row of the end plate through holes of the second flow path positioned on the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole in the first row of the end plate through holes of the second flow path positioned on the air return port side;
the combination of the normal flow paths is formed by the condenser modules or the elbows connected between the first row of end plate through holes on the return air inlet side of the present flow path, and may be specifically the same as the combination structure of the flow paths of the condenser in the first embodiment.
Specifically, the number of the first row of end plate through holes of the first flow path on the return air inlet side of the condenser is 4; wherein, be connected through the condenser subassembly between head hole and the 2 nd end plate through-hole, be connected through the elbow between the 2 nd end plate through-hole and the 3 rd end plate through-hole, be connected through the condenser subassembly between 3 rd end plate through-hole and the tail hole.
The number of the first row of the end plate through holes of the second flow path, which are positioned on the air return port side of the condenser, is also 4; wherein, be connected through the condenser subassembly between head hole and the 2 nd end plate through-hole, be connected through the elbow between the 2 nd end plate through-hole and the 3 rd end plate through-hole, be connected through the condenser subassembly between 3 rd end plate through-hole and the tail hole.
For a pair of cross-over type flow paths, a third flow path and a fourth flow path are adjacently arranged, the inlet end of the combination of the third flow path is arranged as the first hole of the first row of the end plate through holes of the third flow path, which are positioned at the air return opening side of the condenser, and the outlet end of the combination of the third flow path is arranged as the first hole of the first row of the end plate through holes of the fourth flow path, which are positioned at the air return opening side; the inlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the fourth flow path positioned on the air return port side, and the outlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the third flow path positioned on the air return port side;
the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the third flow path comprise a cross-pipe input hole and a cross-pipe output hole; the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the fourth flow path comprise a cross-pipe input hole and a cross-pipe output hole;
the pipe spanning input holes in the first row of the end plate through holes of the third flow path are connected with the pipe spanning output holes in the first row of the end plate through holes of the fourth flow path through first pipe spanning; a pipe spanning input hole in the first row of the end plate through holes of the fourth flow path is connected with a pipe spanning output hole in the first row of the end plate through holes of the third flow path through a second pipe spanning;
the combination of the third flow path is composed of a condenser assembly or an elbow, a first cross pipe and a condenser assembly or an elbow, wherein the condenser assembly or the elbow is connected with a first row of end plate through holes of the third flow path from a head hole to a cross pipe input hole, and the condenser assembly or the elbow is connected with a first row of end plate through holes of the fourth flow path from a cross pipe output hole to a tail hole;
the combination of the fourth flow path is formed by a first row of end plate through holes connected to the fourth flow path from the tail hole to the condenser assembly or elbow of the cross-over pipe input hole, a second cross-over pipe, and a first row of end plate through holes connected to the fourth flow path from the cross-over pipe output hole to the condenser assembly or elbow of the head hole.
Specifically, the number of the first row of end plate through holes of the third flow path on the return air inlet side of the condenser is 4; in the third flow path, the head hole is connected to the 2 nd end plate through hole as the cross-pipe input hole of the third flow path through a condenser assembly, and the 3 rd end plate through hole as the cross-pipe output hole of the third flow path is connected to the tail hole through a condenser assembly.
The number of the first row of end plate through holes of the fourth flow path, which are positioned on the air return port side of the condenser, is 4; in the fourth flow path, the tail hole is connected to the 3 rd end plate through hole serving as the cross-pipe input hole of the fourth flow path through a condenser assembly, and the 2 nd end plate through hole serving as the cross-pipe output hole of the fourth flow path is connected to the head hole through a condenser assembly.
The inventor of the invention considers that in practical application, due to the influence of wind field factors, a pair of flow paths with relatively poor heat exchange effect are in jumper connection with the condenser assembly of the first row of end plates through the cross pipe, so that the flow path length of the pair of flow paths is prolonged, and meanwhile, the outlet ends of the pair of flow paths are kept adjacent, so that the heating effect of each flow path is uniform while the reheat loss is avoided.
According to the technical scheme, the flow lengths of the flow paths of the condensers of the three rows of condenser assemblies are set to be equal, the output ends of the two adjacent flow paths are adjacent through the three-way pipes with different structures, the reheat loss of the output ends of the flow paths is avoided, and meanwhile, the flow lengths of the convection flow paths are lengthened by jumping over the pipes to the condenser assemblies in the pair of flow paths with relatively poor heat exchange effect in consideration of wind field factors, so that the heat exchange effect of the convection flow paths is improved, the heat exchange of the refrigerant between the flow paths is uniform, and the reheat loss can be avoided.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A condenser, comprising: input house steward, shunt, collector, output house steward, its characterized in that still includes:
a plurality of pairs of flow paths connected between the flow splitter and the collector; wherein,
each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected; the input port of the binary input pipe is connected with one output port of the splitter, and the two output ports of the binary input pipe are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combiner through the three-way pipe;
for a pair of flow paths, a first flow path and a second flow path are arranged adjacently, the inlet end of the combination of the first flow paths is arranged as the first hole of the first row of the end plate through holes of the first flow path on the air return port side of the condenser, and the outlet end of the combination of the first flow paths is arranged as the tail hole of the first row of the end plate through holes of the first flow path on the air return port side;
the inlet end of the combination path of the second flow path is set as the tail hole of the second flow path in the first row of the end plate through holes on the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole of the second flow path in the first row of the end plate through holes on the air return port side;
the combination of the flow paths is composed of a condenser assembly or an elbow connected between the first row of end plate through holes on the air return port side of the flow path; the trailing hole of the first flow path and the leading hole of the second flow path are disposed adjacent to each other.
2. The condenser according to claim 1, wherein the two branches of the flow path are provided on both sides of a bisected input pipe of the flow path;
each branch is composed of condenser components or elbows connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes.
3. The condenser of claim 2, wherein the first row of end plate through holes of the flow path on the return air port side is 4; wherein,
the first hole is connected with the 2 nd end plate through hole through a condenser assembly, the 2 nd end plate through hole is connected with the 3 rd end plate through hole through an elbow, and the 3 rd end plate through hole is connected with the tail hole through the condenser assembly.
4. The condenser of claim 3, wherein a second row of end plate through holes of one branch of the flow path on the side of the air outlet is 2, connected by a condenser assembly; and the third row of end plate through holes of the branch are 2 and are connected through the condenser assembly; and
one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
5. A condenser, comprising: input house steward, shunt, collector, output house steward, its characterized in that still includes:
a plurality of pairs of flow paths connected between the flow splitter and the collector; the flow path comprises a cross-over flow path and a normal flow path;
each flow path includes: the two-branch input pipe, the three-way pipe, the two branches and one combining way are connected; the input port of the binary input pipe is connected with one output port of the splitter, and the two output ports of the binary input pipe are respectively connected with the inlet ends of the two branches; the outlet ends of the two branches are connected with the inlet end of the combiner through the three-way pipe;
with respect to a pair of normal-mode flow paths,
the first flow path and the second flow path are arranged adjacently, the inlet end of the combination path of the first flow path is arranged as the first hole of the first row of the end plate through holes of the first flow path, which are positioned at the air return port side of the condenser, and the outlet end of the combination path of the first flow path is arranged as the tail hole of the first row of the end plate through holes of the first flow path, which are positioned at the air return port side;
the inlet end of the combination path of the second flow path is set as the tail hole of the second flow path in the first row of the end plate through holes on the air return port side, and the outlet end of the combination path of the second flow path is set as the head hole of the second flow path in the first row of the end plate through holes on the air return port side;
the combination of the flow paths is composed of a condenser assembly or an elbow connected between the first row of end plate through holes on the air return port side of the flow path; the tail hole of the first flow path and the head hole of the second flow path are adjacently arranged;
with respect to a pair of cross-over flow paths,
the third flow path and the fourth flow path are arranged adjacently, the inlet end of the combination path of the third flow path is arranged as the first hole of the third flow path in the first row of the end plate through holes on the air return port side of the condenser, and the outlet end of the combination path of the third flow path is arranged as the first hole of the fourth flow path in the first row of the end plate through holes on the air return port side;
the inlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the fourth flow path on the air return port side, and the outlet end of the combination path of the fourth flow path is set as a tail hole in the first row of the end plate through holes of the third flow path on the air return port side;
the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the third flow path comprise a cross-pipe input hole and a cross-pipe output hole; the end plate through holes between the head holes and the tail holes of the first row of end plate through holes of the fourth flow path comprise a cross-pipe input hole and a cross-pipe output hole;
the pipe spanning input hole of the third flow path is connected with the pipe spanning output hole of the fourth flow path through the first pipe spanning; a pipe spanning input hole of the fourth flow path is connected with a pipe spanning output hole in the first row of the end plate through holes of the third flow path through a second pipe spanning;
the combination path of the third flow path is composed of a condenser assembly or an elbow connected between the head hole of the first row of end plates of the third flow path and the pipe spanning input hole of the third flow path, a first pipe spanning, and a condenser assembly or an elbow connected between the pipe spanning output hole of the first row of end plates of the fourth flow path and the head hole of the fourth flow path;
the combination of the fourth flow path is composed of a condenser assembly or an elbow connected to the tail hole of the first row of end plates of the fourth flow path and the pipe spanning input hole of the fourth flow path, a second pipe spanning, and a condenser assembly or an elbow connected to the pipe spanning output hole of the first row of end plates of the third flow path and the tail hole of the third flow path.
6. The condenser of claim 5, wherein the two branches of the flow path are disposed on both sides of a bisecting inlet pipe of the flow path;
one branch of the flow path is formed by a condenser assembly or an elbow connected between branch through holes of the flow path; the branch through holes comprise a second row of end plate through holes of the current flow path, which are positioned on the air outlet side of the condenser, and a third row of end plate through holes between the first row of end plate through holes and the second row of end plate through holes.
7. The condenser of claim 6, wherein the first row of end plate through holes of the first/second flow path on the return air port side of the condenser is 4; wherein, be connected through the condenser subassembly between head hole and the 2 nd end plate through-hole, be connected through the elbow between the 2 nd end plate through-hole and the 3 rd end plate through-hole, be connected through the condenser subassembly between 3 rd end plate through-hole and the tail hole.
8. The condenser of claim 7, wherein the first row of end plate through holes of the third flow path on the return air port side of the condenser is 4; in the third flow path: the first hole is connected with the 2 nd end plate through hole serving as a cross-pipe input hole of the third flow path through a condenser assembly, and the 3 rd end plate through hole serving as a cross-pipe output hole of the third flow path is connected with the tail hole through the condenser assembly;
the number of the first row of end plate through holes of the fourth flow path, which are positioned on the air return port side of the condenser, is 4; in the fourth flow path: the tail hole is connected with a 3 rd end plate through hole of a cross pipe input hole serving as a fourth flow path through a condenser assembly, and a 2 nd end plate through hole of a cross pipe output hole serving as the fourth flow path is connected with the head hole through the condenser assembly.
9. The condenser as claimed in any one of claims 6 to 8, wherein a branch of the flow path has 2 second row of end plate through holes on the side of the air outlet, and is connected by a condenser unit; and the third row of end plate through holes of the branch are 2 and are connected through the condenser assembly; and
one of the second row of end plate through holes of the branch is used as the inlet end of the branch, the other is connected with one of the third row of end plate through holes of the branch through an elbow, and the other of the third row of end plate through holes of the branch is used as the outlet end of the branch.
10. A multi-split air conditioning system comprising the condenser as set forth in any one of claims 1 to 9.
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| CN106679209A (en) * | 2015-11-10 | 2017-05-17 | 丹佛斯微通道换热器（嘉兴）有限公司 | Refrigerating system |
| CN105318610A (en) * | 2015-12-02 | 2016-02-10 | 天津商业大学 | Pipeline flow design scheme of recycling evaporator for gravity liquid supply refrigerating system |
| CN110220296A (en) * | 2019-03-06 | 2019-09-10 | 青岛海信日立空调系统有限公司 | A kind of heat exchanger and air conditioner |
| JP6878511B2 (en) * | 2019-07-17 | 2021-05-26 | 日立ジョンソンコントロールズ空調株式会社 | Heat exchanger, air conditioner, indoor unit and outdoor unit |
| CN110425903B (en) * | 2019-08-13 | 2021-03-23 | 江苏天舒电器有限公司 | Fin type heat exchanger and intelligent temperature adjusting method thereof |
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