JP2010236855A - Additional condenser, and refrigerating cycle device with additional condensation system using this - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an additional condenser easy to be added to a refrigerating cycle and capable of improving the condensation efficiency, and a refrigerating cycle device with the additional condenser equipped with the additional condenser. <P>SOLUTION: The additional condenser 50 is added to the refrigerating cycle device 20 of the refrigerating cycle device 10 with the additional condenser which includes a compressor 22, a four-way valve 24, an outdoor heat exchanger 26, and an indoor heat exchanger 28. The additional condenser 50 is added and pipe-connected in series between the indoor heat exchanger 26 and the outdoor heat exchanger 28. The additional condenser 50 includes a condensation heat exchanger capable of condensing coolant flowing in the refrigerating cycle 20 and a blower capable of generating an air flow passing through the condensation heat exchanger. A parallel-flow type condenser, in which a large number of heat transfer tubes are arranged in parallel between a pair of headers and the respective heat transfer tubes are communicated with the pair of the headers, is adopted by the condensation heat exchanger. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an additional condensing device and a refrigeration cycle device with an additional condensing system using the same.

  Conventionally, a heat pump type air conditioner (air conditioner) as disclosed in Patent Document 1 has been provided. In this air conditioner, a compressor and an existing condenser, and an evaporator and a compressor are connected by gas pipes through four-way valves, respectively, and a capillary tube installed at the refrigerant gas outlet of the existing condenser and an additional condenser are connected. And a gas pipe connecting the additional condenser and the evaporator.

  In this air conditioner, the cooling operation and the heating operation can be switched by switching the four-way valve, and the additional capacitor functions as a condenser even when performing either the cooling operation or the heating operation. It complements the heat dissipation and condensation of the refrigerant gas in the existing condenser and improves the cooling and heating efficiency.

  Moreover, in patent document 2, in the refrigerating cycle comprised by connecting the outdoor unit which consists of a compressor, a four-way valve, an outdoor heat exchanger, and the indoor unit which consists of an indoor heat exchanger with two piping, an outdoor unit is A configuration in which an auxiliary unit can be additionally connected is disclosed, and the auxiliary unit includes, for example, a heat exchanger and a blower.

  This refrigeration cycle proposes to solve the problem that the change cost becomes very large in order to greatly improve the efficiency of existing refrigeration and air-conditioning equipment composed of outdoor units and indoor units over existing equipment. It is what has been.

JP 10-339511 A JP-A-11-248273

  However, although the additional capacitor disclosed in Patent Document 1 can be additionally installed with respect to an existing air-conditioning apparatus, there is a problem that a considerable amount of labor is required for the installation. Further, the specific installation location of the additional capacitor is not particularly considered, and is generally considered to be disposed in the immediate vicinity of the existing capacitor. In such an arrangement, the condensation efficiency of the existing capacitor may be reduced due to the heat radiation of the additional capacitor, and if an additional capacitor is installed near the outside air inlet of the existing capacitor, the condensation of the existing capacitor will be reduced. The possibility that the efficiency is further reduced further increases. In addition, the condensation efficiency in the additional capacitor may be reduced.

  As for the auxiliary unit of Patent Document 2, in Patent Document 2, only an aspect of being installed adjacent to the outdoor unit is specifically disclosed, and other specific installation locations are not particularly considered. In addition, the heat dissipation in the heat exchanger in the auxiliary unit and the influence of the airflow on the main body are not particularly mentioned, and it is considered that there is room for improvement from the viewpoint of condensation efficiency.

  Thus, in the configuration of the above-described prior art, the condensation efficiency in both the additional condenser (heat exchanger) and the existing condenser (heat exchanger) cannot be sufficiently exhibited, and from the viewpoint of exhibiting sufficient cooling and heating efficiency. There was still room for improvement. Based on such knowledge, the present invention can be easily expanded with respect to the existing refrigeration cycle apparatus, and can be further improved in the condensation efficiency, and an expansion condensing system including the expansion condensing apparatus. The purpose is to provide an attached refrigeration cycle apparatus.

The present invention provided to solve the above-described problems
It is an additional condensing device that is piped in series to the refrigerant circuit of the refrigeration cycle device that is configured by piping the indoor heat exchanger, the outdoor heat exchanger, and the compressor in series so that the refrigerant can circulate,
Condensation heat for condensing the refrigerant during cooling and heating, comprising a pair of headers made of hollow straight pipes and a plurality of heat transfer tubes arranged in parallel between the pair of headers and communicating with the pair of headers An exchange,
A blower that generates an air flow that passes between the plurality of heat transfer tubes of the heat exchanger for condensation; and
Including,
An additional condensing device is provided.

  The expansion condensing apparatus of the present invention can be expanded with respect to the existing refrigeration cycle apparatus by connecting the expansion condensing apparatus provided with the heat exchanger for condensation and the blower, and the expansion work can be easily performed. In particular, the expansion condensing apparatus of the present invention can be connected to the refrigeration cycle apparatus at a distance, so if the surrounding environment is hot and unfavorable for cooling operation, install it in a well-ventilated place or a low-temperature place. Thus, the condensation efficiency of the refrigeration cycle apparatus can be improved more reliably.

  Moreover, since the expansion condensing apparatus of this invention is equipped with the air blower for generating the airflow which passes the heat exchanger for condensation in addition to the heat exchanger for condensation, it is the heat exchanger for condensation by operating a fan. Can be exposed to low temperature outside air to improve the condensation efficiency.

  Further, in the additional condensing apparatus of the present invention, a large number of heat transfer tubes having fins are arranged in parallel as a heat exchanger for condensation between a pair of headers, and each heat transfer tube communicates with the pair of headers, so-called Since a parallel flow capacitor (PFC) is used, the condensation efficiency per unit area is high. Further, in the parallel flow type capacitor, the airflow can easily pass between the heat transfer tubes as compared with the case where a conventionally known serpentine type capacitor or the like is used.

  That is, the parallel flow type capacitor has a small ventilation resistance, and can efficiently pass outside air by operating the blower. Therefore, in the additional condensing device of the present invention, the refrigerant passing through the inside of each heat transfer tube can be condensed very efficiently by operating the blower.

  In the expansion condensing device of the present invention, it is desirable that the output of the blower be adjusted according to the outdoor environmental temperature (outside air temperature).

  According to such a configuration, it is possible to ensure the optimum blowing capacity for condensing the refrigerant regardless of the environmental temperature such as the outside air temperature, and to exhibit a highly efficient and stable condensation ability.

  The expansion condensing device of the present invention preferably includes an airflow adjusting device capable of adjusting the direction of the airflow discharged from the expansion condensing device.

  According to such a configuration, during cooling, the airflow adjustment device is positioned below to guide the airflow discharged from the additional condensing device (warm airflow due to heat release due to condensation) away from the exhaust port of the outdoor heat exchanger. , Without disturbing condensation in the outdoor heat exchanger functioning as a condenser, during heating, the airflow adjustment device is positioned above, and the airflow discharged from the additional condensing device (warm airflow due to heat release by condensation) Guides toward the exhaust outlet side of the outdoor heat exchanger, evaporation in the outdoor heat exchanger functioning as an evaporator is promoted, and the COP can be improved by effectively utilizing the condensed exhaust heat during heating. Moreover, the defrosting effect in an outdoor heat exchanger is also acquired.

In addition, the present invention is to solve the above-described problems.
A refrigeration cycle apparatus configured by connecting an indoor heat exchanger, an outdoor heat exchanger and a compressor in series so that the refrigerant can circulate;
The additional condensing device,
Including,
A refrigeration cycle apparatus with an additional condensing system is also provided.

  The refrigeration cycle apparatus with an additional condensing system of the present invention is configured by adding the above-described additional condensing apparatus of the present invention to the refrigeration cycle apparatus, and is a condenser among the indoor heat exchanger and the outdoor heat exchanger. Although it functions, it is possible to supplement the condensing function with an additional condensing device. Further, as described above, the additional condensing device has a small ventilation resistance in the heat exchanger for condensation, and the airflow smoothly passes through the heat exchanger for condensation as the blower operates, so that the condensation efficiency in the heat exchanger for condensation is increased. Is expensive. Therefore, the refrigeration cycle apparatus with an additional condensing system of the present invention has high air conditioning efficiency.

  In the refrigeration cycle apparatus with an additional condensing system of the present invention, a bypass flow path that bypasses the additional condensing apparatus is provided in the refrigeration cycle apparatus, and the difference between the environmental temperature and the outlet temperature of the outdoor heat exchanger is a predetermined temperature. When the difference is less than or equal to the difference, the refrigerant may flow so as to bypass the additional condensing device and pass through the bypass flow path.

  If the difference between the ambient temperature and the outlet temperature of the outdoor heat exchanger is less than the predetermined temperature difference, it is assumed that the refrigerant will be sufficiently condensed without operating the additional condensing device, and the cooling / heating efficiency will not decrease so much. The Based on such knowledge, in the present invention, the refrigerant is circulated so as to pass through the bypass passage and bypass the additional condensing device under the conditions as described above. Therefore, it is not necessary to operate the additional condensing device excessively, and it is possible to suppress energy required for operating the blower.

  ADVANTAGE OF THE INVENTION According to this invention, it can be expanded easily with respect to the existing refrigeration cycle apparatus, the expansion condensing apparatus which can improve a condensation efficiency further, and the refrigerating cycle with an expansion condensing system provided with the said additional condensing apparatus Equipment can be provided.

It is a flow chart showing a refrigerating cycle device adopted in a refrigerating cycle device with an expansion condensation system concerning one embodiment of the present invention, (a) shows a flow of a refrigerant at the time of cooling operation, (b) Indicates the flow of the refrigerant during the heating operation. It is a figure which shows the expansion condensing apparatus concerning one Embodiment of this invention, (a) is sectional drawing which shows the state seen from the inlet port side, (b) is sectional drawing which shows the state seen from the exhaust port side, (c) ) Is a cross-sectional view showing a state viewed from the top side. It is explanatory drawing which shows the installation state at the time of cooling of an expansion condensing device. It is explanatory drawing which shows the installation state at the time of the heating of an expansion condensing device. It is a schematic perspective view of an airflow adjusting device. It is explanatory drawing which shows the modified example of the refrigerating cycle apparatus with an expansion condensing system, and an expansion condensing apparatus, (a) And (b) is the example of installation of the refrigerating cycle apparatus with an expansion condensing system and an expansion condensing apparatus between adjacent buildings, respectively. (A) is a diagram seen from the side, and (b) is a diagram seen from above. It is a flow path figure showing the modification of a refrigerating cycle device.

  Subsequently, the refrigeration cycle apparatus 10 with an additional condensing system and the additional condensing apparatus 50 according to an embodiment of the present invention will be described in detail with reference to the drawings, although the present invention is not limited to the present embodiment. .

  The refrigeration cycle apparatus 10 with an additional condensing system includes a refrigeration cycle apparatus 20 as shown in FIG. 1, and an additional condensing apparatus 50 is added to the refrigeration cycle apparatus 20. The refrigeration cycle apparatus 20 includes a compressor 22, a four-way valve 24, an outdoor heat exchanger 26, and an indoor heat exchanger 28, and the refrigerant can be circulated by connecting the pipes in series. is there.

  As shown in FIG. 2, the expansion condensing device 50 is connected in series to a position corresponding to the space between the indoor heat exchanger and the outdoor heat exchanger in the refrigeration cycle apparatus 20. This is to improve the condensation effect of the refrigerant. The expansion condensing device 50 accommodates two condensing heat exchangers 52 and a blower 54 in a main body case 56, and an air flow adjusting device 58 is attached to the main body case 56 to form a unit (hereinafter referred to as "extension" Also referred to as “condensing unit”.

  Further, as shown in FIGS. 3 and 4, the expansion condensing device 50 is installed above the casing of the outdoor heat exchanger 26 and is capable of detecting the environmental temperature. 60. Although the environmental temperature detection means 60 can be provided separately from the expansion condensing device 50, in this embodiment, it is attached to the top surface of the main body case 56 forming the expansion condensing device 50.

  The condensing heat exchanger 52 and the blower 54 are adjacent to each other in the main body case 56. The condensation heat exchanger 52 is provided at a position on the intake port 56a side of the main body case 56, and the blower 54 is provided at a position on the exhaust port 56b side. Further, the environmental temperature detection means 60 is installed at an arbitrary position where the outside air temperature such as the outer peripheral surface of the main body case 56 can be stably detected.

  The condensing heat exchanger 52 is constituted by a heat exchanger, and the refrigerant is circulated between the outdoor heat exchanger 26 and the indoor heat exchanger 28 by directly connecting a pipe to the refrigerant circuit of the refrigeration cycle apparatus 20. It is possible to make it. The condensing heat exchanger 52 is configured by a so-called parallel flow condenser (PFC), and a large number of heat transfer tubes 66 are arranged in parallel between a pair of long and thin hollow cylindrical headers 62 and 64. The heat transfer tubes 66 are communicated with the headers 62 and 64. In the present embodiment, a condensing heat exchanger 52 in which two parallel flow capacitors described above are connected in series is used. As the heat transfer tube 66, various conventionally known heat transfer tubes can be used, but in the present embodiment, a flat and hollow plate heat transfer tube is preferable.

  The blower 54 includes a power source (not shown) such as a motor, and a fan 54a that operates by receiving power from the power source. The blower 54 can generate an airflow that flows from the intake port 56a side to the exhaust port 56b side by operating the fan 54a. Therefore, when the fan 54a is operated, the airflow by the outside air taken in from the intake port 56a passes through the condensation heat exchanger 52, and the condensation effect in the condensation heat exchanger 52 can be improved. In the blower 54, the output of the drive source is adjusted according to the temperature detected by the outside air temperature detecting means 60, and the amount of air blown is adjusted.

  2 to 5, the airflow adjustment device 58 is a hood-like member (guide plate) attached to a position of the main body case 56 on the exhaust port 56b side, and is centered on the fulcrum 58c. The direction can be switched up and down in the direction of the arrow X shown in FIG. More specifically, as shown in FIG. 5, the airflow adjustment device 58 in the present embodiment includes a curved plate material and fan-shaped plate materials provided at both ends of the curved plate material. In the present embodiment, as described above, the additional condensing device 50 is installed above the casing forming the outdoor heat exchanger 26, and the additional condensing device 50 connects the exhaust port 56b and the airflow adjusting device 58 to the outdoor heat exchanger. Since the intake port 26a is directed in the direction in which it is provided, the intake port 26a exists below the exhaust port 56b.

  Therefore, at the time of cooling, as shown in FIG. 3, when the airflow adjustment device 58 is positioned downward and the airflow is switched upward as indicated by the arrow P, the airflow (condensation) discharged from the additional condensing device 50 is changed. The warm air flow due to the heat release by the air is guided in a direction away from the exhaust port 26a of the outdoor heat exchanger 26. Thereby, the condensation in the outdoor heat exchanger functioning as a condenser is difficult to be prevented. On the contrary, during heating, as shown in FIG. 4, when the airflow adjustment device 58 is positioned upward and the airflow (warm airflow due to heat release due to condensation) is switched downward as indicated by the arrow Q, The airflow discharged from the expansion condenser 50 is guided toward the exhaust port 26a side of the outdoor heat exchanger 26. Thereby, evaporation in the outdoor heat exchanger functioning as an evaporator is promoted, and the COP can be improved by effectively utilizing the condensed exhaust heat during heating. Moreover, the defrosting effect in the outdoor heat exchanger 26 is also acquired.

  The refrigeration cycle apparatus 10 with an additional condensing system can perform a cooling operation or a heating operation by adjusting the four-way valve 24 and switching the circulation direction of the refrigerant. As shown by the arrows in FIG. 1A, the cooling operation can be performed by circulating the refrigerant, and as shown by the arrows in FIG. 1B, the refrigerant is supplied in the opposite direction to the cooling operation. Heating operation can be performed by circulation.

  When performing the cooling operation, specifically, first, a high-temperature and high-pressure gaseous refrigerant is supplied from the compressor 22 toward the outdoor heat exchanger 26 via the four-way valve 24. In this case, the outdoor heat exchanger 26 functions as a condenser. Therefore, the gaseous refrigerant supplied from the compressor 22 is condensed in the outdoor heat exchanger 26. The refrigerant that has passed through the outdoor heat exchanger 26 is further condensed in the additional condensing device 50. At this time, the blower 54 operates in a state in which the output is adjusted according to the outside air temperature detected by the environmental temperature detection means 60, and the refrigerant passing through the heat transfer tube 66 of the heat exchanger 52 for condensation is condensed. Further, as shown in FIG. 3, the airflow adjusting device 58 is directed downward, and the airflow discharged from the exhaust port 56 b is guided in a direction away from the exhaust port 26 a of the outdoor heat exchanger 26.

  The refrigerant that has passed through the outdoor heat exchanger 26 and the additional condensing device 50 is almost completely liquefied, and is supplied to the indoor heat exchanger 28 serving as an evaporator. In the indoor heat exchanger 28, the refrigerant evaporates and enters a low-temperature and low-pressure gas state. Along with this, heat is absorbed in the indoor heat exchanger 28, and the room is cooled. The refrigerant that is in a gaseous state in the indoor heat exchanger 28 is returned to the compressor 22. The cooling operation is performed by repeating the cycle described above.

  On the other hand, when performing the heating operation, specifically, when performing the heating operation, first, the high-temperature and high-pressure gaseous refrigerant is directed from the compressor 22 to the indoor heat exchanger 28 side via the four-way valve 24. Supplied. In this case, the indoor heat exchanger 28 functions as a condenser, and the gaseous refrigerant is condensed. As described above, in the air conditioner 10 of the present embodiment, the additional condensing device 50 functions as a condenser even when performing the heating operation.

  In addition, the blower 54 in the expansion condensing device 50 is output-adjusted so as to obtain an appropriate air flow rate for condensing the refrigerant based on the outside air temperature detected by the environmental temperature detecting means 60 as in the case of the cooling operation. The Therefore, the refrigerant that has passed through the indoor heat exchanger 28 is further condensed in the additional condensing device 50 and is in a state of being almost completely liquefied. Further, when performing the heating operation, as shown in FIG. 4, the direction of the airflow adjustment device 58 is switched upward, and the airflow discharged from the exhaust port 56 b is directed toward the exhaust port 26 a of the outdoor heat exchanger 26. You will be guided.

  The refrigerant that has passed through the indoor heat exchanger 28 and the additional condensing device 50 is almost completely liquefied and supplied to the outdoor heat exchanger 26. When the refrigeration cycle apparatus 10 with an additional condensing device performs the heating operation, the outdoor heat exchanger 26 functions as an evaporator, and the refrigerant is evaporated by evaporation. The refrigerant that is in a gaseous state in the outdoor heat exchanger 26 is returned to the compressor 22. The heating operation is performed by repeating the cycle described above.

  The expansion condensing device 50 described above is unitized by housing the heat exchanger 52 for condensing and the blower 54 in the main body case 56, and can be easily connected to the refrigeration cycle apparatus 20 by pipe connection. Therefore, the expansion condensing device 50 can be easily added to an existing refrigeration cycle apparatus.

  Further, the expansion condensing device 50 includes not only the condensing heat exchanger 52 but also the blower 54. By operating the blower 54, the condensing heat exchanger 52 is converted into the low-temperature outside air taken into the main body case 56. It is possible to expose the heat transfer tube 66 constituting the above. Therefore, it is possible to efficiently condense the refrigerant circulating through the refrigeration cycle apparatus 20 with the additional condensation heat exchanger 50 and improve the cooling and heating efficiency of the air conditioner 10.

  In the expansion condensing device 50, the so-called parallel flow type condenser is adopted as the heat exchanger 52 for condensation as described above, and the condensation efficiency is high. In addition, since the heat exchanger 52 for condensing easily allows airflow to pass between the heat transfer tubes 66 and has low airflow resistance, the outside air introduced from the intake port 56 a by operating the blower 54 enters the main body case 56. It passes smoothly without stagnation and is discharged from the exhaust port 56b. Therefore, in the additional condensing device 50, it is possible to very efficiently condense the refrigerant passing through the inside of each heat transfer tube 66 by the outside air introduced by operating the blower 54.

  Moreover, since the output of the air blower 54 is adjusted according to external temperature, the expansion condensing apparatus 50 of this embodiment can ensure the optimal ventilation capability in order to condense a refrigerant | coolant. Therefore, the additional condensing device 50 can exhibit a highly efficient and stable condensing capacity without being affected by the outside air temperature. In the present embodiment, the configuration in which the output of the blower 54 is adjusted according to the temperature detected by the environmental temperature detection means 60 in order to consider the influence on the condensation capacity due to the environmental temperature such as the outside air temperature is illustrated. Is not limited to this, and the blower 54 may be operated with a predetermined output regardless of the outside air temperature or the like.

  Although the representative embodiments of the present invention have been described above, various design changes can be made within the scope of the technical idea of the present invention. For example, in the present embodiment, the configuration in which the ambient temperature is detected by the ambient temperature detection means 60 and reflected in the output of the blower 54 is exemplified, but the present invention is not limited to this, and for example, outdoor heat exchange It is also possible to reflect the outlet pipe temperature of the heat exchanger 26, the exhaust temperature of the outdoor heat exchanger 26, etc. in the output of the blower 54, and consider the environmental temperature such as the outside air temperature and other operating conditions in combination. 24 output adjustments may be performed. Further, in the present embodiment, the example in which the additional condensing device 50 is configured to include the environmental temperature detecting means 60 has been shown, but the present invention is not limited to this and is provided in the air conditioner 10. Other temperature sensors or the like can be used as a substitute for the environmental temperature detection means 60.

  Moreover, in the said embodiment, although the example which provided the hood-like airflow adjustment apparatus 58 as the airflow adjustment apparatus 58 was illustrated, this invention is not limited to this, It discharges from the expansion condensing apparatus 50 as needed. Any configuration may be used as long as the airflow can be adjusted so as to be directed to the outdoor heat exchanger 26 side. Of course, the additional condensing device 50 may not include the airflow adjusting device 58.

  Moreover, in the said embodiment, although the example which has arrange | positioned the expansion condensing apparatus 50 above the outdoor heat exchanger 26 was illustrated, this invention is not limited to this, The expansion condensing apparatus 50 is arrange | positioned in an appropriate position. Is possible. In addition, when the outdoor heat exchanger 26 must be installed in a place where heat dissipation efficiency is poor, such as a narrow space between buildings B such as buildings, as shown in FIG. 50 can be installed on the roof of the building B, or can be installed in a place with good ventilation and high heat dissipation efficiency away from the building B as shown in FIG. By installing the expansion condensing device 50 in this way, it is possible to improve the condensation efficiency and thermal efficiency in the refrigeration cycle 20, and to further improve the cooling and heating efficiency in the refrigeration cycle device 10 with the additional condensing system.

  Further, as shown in FIGS. 6A and 6B, when installing the additional condensing device 50 at a position away from the outdoor heat exchanger 26, the extension pipe 70 may be connected. At this time, instead of providing the airflow adjustment device 58, airflow guide means (not shown) such as a pipe or a duct is connected so as to connect the exhaust port 56b of the additional condensing device 50 and the intake port 26a of the outdoor heat exchanger 26. It may be provided. Then, the relatively low temperature exhaust discharged from the additional condensing device 50 can be effectively used for the condensation of the refrigerant in the outdoor heat exchanger 26.

  Moreover, the refrigeration cycle apparatus 20 can change a flow-path structure suitably as needed. Specifically, as shown in FIG. 7, it is possible to adopt a configuration in which a bypass flow path 72 that bypasses the additional condensing device 50 and a valve 74 that can restrict the flow of the refrigerant to the bypass flow path 72 can be provided. is there. Further, in the case of such a flow path configuration, it is possible to adjust the flow rate of the refrigerant to the bypass flow path 72 according to environmental factors such as the outside air temperature, the operating state of the air conditioner 10, and the like.

  Specifically, for example, when the difference between the environmental temperature and the outlet temperature of the outdoor heat exchanger 26 is equal to or less than a predetermined temperature difference, the refrigerant flows so as to bypass the additional condensing device 50 and pass through the bypass flow path. It is also possible to control the operation so that the opening degree of the valve 74 is adjusted. By performing such operation control, it is possible to prevent the expansion condensing device 50 from operating excessively and to obtain effects such as suppressing energy required for operating the blower 54. Therefore, the present invention also relates to an operation / control method of the refrigeration cycle apparatus with an additional condensing system as described above.

  Moreover, in the said embodiment, although the expansion condensing apparatus 50 containing the two sheets of condensing heat exchangers 52 was demonstrated, the expansion condensing apparatus in this invention is an aspect containing one sheet of condensing heat exchanger, Alternatively, it may be an embodiment including three or more heat exchangers for condensation. A plurality of blowers may be provided.

  Moreover, in the said embodiment, as shown in FIG.2 (c), the two heat exchangers 52 for condensation are put side by side, and these main surfaces become the main surface (surface where an airflow is discharged | emitted) of the air blower 54. Although the aspect arrange | positioned with the positional relationship which becomes substantially perpendicular | vertical with respect to it was demonstrated, the positional relationship of the heat exchanger for a condensation or an air blower is not limited to this, You may take a various aspect. For example, the two condensing heat exchangers 52 are arranged obliquely at an angle, and the main surface of the two condensing heat exchangers 52 is relative to the main surface of the blower 54 (the surface from which the airflow is discharged). It may be configured to be inclined with an angle. Further, the two heat exchangers for condensation 52 may be arranged vertically.

  Further, the expansion condensing device in the above embodiment is generally piped in series to a refrigerant circuit in a refrigeration cycle apparatus configured by pipe-connecting an indoor heat exchanger, an outdoor heat exchanger, and a compressor in series. Although explained as a thing, it is a refrigerant | coolant in both the time of air_conditioning | cooling and heating in the refrigerant circuit of the refrigeration cycle apparatus comprised by connecting an indoor heat exchanger, an outdoor heat exchanger, and a compressor in series piping. It is preferable to connect the additional condensing device of the present invention in series to a portion where the flow of the same flows in the same direction. Note that a portion in which the refrigerant flows in the same direction during both cooling and heating can be formed in the refrigerant circuit using a rectifier circuit.

  The expansion condensing apparatus of the present invention can be easily expanded with respect to the existing refrigeration cycle apparatus, can enhance the condensing capacity in the refrigeration cycle apparatus, and can improve the cooling and heating efficiency.

DESCRIPTION OF SYMBOLS 10 Refrigeration cycle apparatus with an additional condensing system 20 Refrigeration cycle apparatus 22 Compressor 24 Four-way valve 26 Outdoor heat exchanger 28 Indoor heat exchanger 50 Additional condensing apparatus 52 Condensing heat exchanger 54 Blower 58 Airflow conditioner 60 Environmental temperature detection means 62 64 Header 66 Heat transfer pipe 72 Bypass flow path 74 Valve

The present invention provided to solve the above-described problems is as follows.
Refrigerant can circulate in the indoor heat exchanger, an expansion condensing device connected to the outdoor heat exchanger and the compressor to the refrigeration cycle device constructed in pipes connected in series,
A pair of headers made of hollow straight pipes and a plurality of heat transfer pipes arranged in parallel between the pair of headers and communicating with the pair of headers, and piped in series with the refrigerant circuit of the refrigeration cycle apparatus It is connected, and the cooling operation and condensing heat exchanger for condensing the refrigerant during heating,
A blower Ru generate airflow you pass between said plurality of heat transfer tubes of the condenser heat exchanger,
An airflow adjusting device capable of adjusting the direction of the airflow;
Including,
An additional condensing device is provided.

As described above, the expansion condensing device of the present invention includes the airflow adjusting device capable of adjusting the direction of the airflow discharged from the expansion condensing device .

On the other hand, when performing the heating operation, specifically, refrigerant in a gas state in the previous not a high temperature and high pressure is supplied toward the compressor 22 through the four-way valve 24 to the indoor heat exchanger 28 side. In this case, the indoor heat exchanger 28 functions as a condenser, and the gaseous refrigerant is condensed. As described above, in the air conditioner 10 of the present embodiment, the additional condensing device 50 functions as a condenser even when performing the heating operation.

Moreover, although the example which provided the specific food | hood-like airflow adjustment apparatus 58 as the airflow adjustment apparatus 58 was illustrated in the said embodiment, this invention is not limited to this, The expansion condensing apparatus 50 is needed as needed. Any hood-like configuration may be used as long as it can be adjusted so that the airflow discharged from the airflow heads toward the outdoor heat exchanger 26 .

Claims (5)

It is an additional condensing device that is piped in series to the refrigerant circuit of the refrigeration cycle device that is configured by piping the indoor heat exchanger, the outdoor heat exchanger, and the compressor in series so that the refrigerant can circulate,
Condensation heat for condensing the refrigerant during cooling and heating, comprising a pair of headers made of hollow straight pipes and a plurality of heat transfer tubes arranged in parallel between the pair of headers and communicating with the pair of headers An exchange,
A blower that generates an airflow that passes between the plurality of heat transfer tubes of the heat exchanger for condensation; and
Including,
An additional condensing device characterized by The output of the blower is adjusted based on ambient temperature;
The additional condensing device according to claim 1. Comprising an air flow adjusting device capable of adjusting the direction of the air flow passing through the plurality of heat transfer tubes of the heat exchanger for condensation and discharged from the additional condensing device;
The expansion condensing device according to claim 1 or 2, wherein A refrigeration cycle apparatus configured by connecting an indoor heat exchanger, an outdoor heat exchanger and a compressor in series so that the refrigerant can circulate;
The additional condensing device according to any one of claims 1 to 3,
Including,
A refrigeration cycle unit with an additional condensing system. A bypass flow path that bypasses the additional condensing device is provided in the piping of the refrigeration cycle device,
When the difference between the environmental temperature and the outlet temperature of the outdoor heat exchanger is equal to or less than a predetermined temperature difference, the refrigerant flows through the bypass flow path so as to bypass the additional condenser.
The refrigeration cycle apparatus with an additional condensing system according to claim 4.

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