JPS633231B2 - - Google Patents
Info
- Publication number
- JPS633231B2 JPS633231B2 JP697179A JP697179A JPS633231B2 JP S633231 B2 JPS633231 B2 JP S633231B2 JP 697179 A JP697179 A JP 697179A JP 697179 A JP697179 A JP 697179A JP S633231 B2 JPS633231 B2 JP S633231B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- diameter
- refrigerant pipe
- refrigerant
- indoor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003507 refrigerant Substances 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 description 28
- 238000001816 cooling Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
【発明の詳細な説明】
〔発明の目的〕
(産業上の利用分野)
本発明は、圧縮機、四方切換弁、室外側熱交換
器、膨脹装置及び室内側熱交換器を順次冷媒用配
管で連結したヒートポンプ式空気調和装置の改良
に関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides a method for sequentially connecting a compressor, a four-way switching valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger using refrigerant piping. This invention relates to improvements in connected heat pump type air conditioners.
(従来の技術)
この種のヒートパイプ式空気調和装置に使用さ
れる空気−冷媒熱交換器の内部に配設される冷媒
用パイプの径は、一般に次のことを考慮して選定
される。(Prior Art) The diameter of the refrigerant pipe disposed inside the air-refrigerant heat exchanger used in this type of heat pipe type air conditioner is generally selected in consideration of the following.
冷媒の流動圧力損失(これが冷凍能力損失へ
影響を与える)
冷媒封入量(これはなるべく少ない方が好ま
しい)
伝熱特性
空気の通風抵抗
その他、パイプの量産性、成形性、標準化等
ここで、冷房専用形の空気調和装置にあつて
は、上記冷媒の流動圧力損失と冷媒封入量を重視
して、室内側と室外側に設けた両熱交換器の内部
に配設した冷媒用パイプは、室外側を細径とし、
室内側を太径とするのが通常であつた。 Flow pressure loss of refrigerant (this affects refrigeration capacity loss) Amount of refrigerant sealed (preferably as small as possible) Heat transfer characteristics Air ventilation resistance Other factors such as pipe mass productivity, formability, standardization, etc. Cooling In the case of a dedicated air conditioner, the refrigerant pipes installed inside the heat exchangers installed on both the indoor and outdoor sides are The outside has a narrow diameter,
It was normal for the indoor side to have a larger diameter.
これは、冷房時に凝縮器となる室外側熱交換器
に溜る冷媒等を削減し、蒸発器となる室内側熱交
換器を流れる冷媒圧力損失を低減させるためであ
る。 This is to reduce the amount of refrigerant that accumulates in the outdoor heat exchanger, which serves as a condenser, during cooling, and to reduce the pressure loss of refrigerant flowing through the indoor heat exchanger, which serves as an evaporator.
また、場合によつては上記パイプの量産性、成
形性及び標準化等を重視して同一径とすることも
一般に行われていた。 Furthermore, in some cases, it has been common practice to make the pipes have the same diameter with emphasis on mass productivity, formability, standardization, etc.
一方、我国の風土を考慮すると、冷房専用形よ
りは冷暖房両用形に対する要求が強く、最近、こ
れを満たす両用形の小形家庭用ヒートポンプ式空
気調和装置が次第に普及している。 On the other hand, considering the climate of Japan, there is a strong demand for a dual-purpose air conditioning system rather than a cooling-only type, and recently, small home heat pump type air conditioners that meet this requirement have become increasingly popular.
この種の空気調和装置においては、冷暖房能力
のうち、冷房能力より暖房能力が多く必要とされ
る。 In this type of air conditioner, more heating capacity than cooling capacity is required among the cooling and heating capacities.
しかしながら、このような両用形のヒートポン
プ式空気調和装置においても、上記冷房専用形の
設計思想に基づき、熱交換器の冷媒用パイプの径
は、室内側を太径とし、室外側を細径とするか、
或いは両者を同一径とすることが一般に行われて
いた。 However, even in such a dual-use heat pump type air conditioner, based on the design concept of the cooling-only type described above, the diameter of the refrigerant pipe of the heat exchanger is set to a large diameter on the indoor side and a small diameter on the outdoor side. Or,
Alternatively, it was common practice to make both the same diameter.
(発明が解決しようとする問題点)
このように、冷房時を基準として冷媒用パイプ
の径が決定されているため、冷房運転時には十分
は能力を発揮しても、暖房運転時には能力が不足
し、この不足を補うため暖房運転時に室内側熱交
換器の風量を増大させていた。しかしながら、こ
の風量増大に伴い室内側の吹出しの温度が低くな
り、使用者に不快感を与えていた。そのため、ヒ
ータを付設し、このヒータにより加熱する等の手
段を設ける必要があつた。(Problem to be solved by the invention) As described above, since the diameter of the refrigerant pipe is determined based on the cooling operation, even if the refrigerant pipe exhibits sufficient capacity during the cooling operation, the capacity may be insufficient during the heating operation. To compensate for this deficiency, the air volume of the indoor heat exchanger was increased during heating operation. However, as the air volume increases, the temperature of the indoor air outlet becomes lower, causing discomfort to the user. Therefore, it was necessary to attach a heater and provide means for heating with the heater.
本発明は上記に鑑み、暖房時を基準として冷媒
用パイプの径を決定することにより、特に能力が
必要とされる暖房運転時に十分な能力を発揮し、
しかも冷房運転時にもそれ程支障をきたしてしま
うことがないばかりでなく、大型化及び材料費の
増大に繋がつてしまうことがないものを提供する
ことを目的とする。 In view of the above, the present invention determines the diameter of the refrigerant pipe based on the heating operation, thereby exhibiting sufficient performance during heating operation, which requires particularly high performance,
Moreover, the object is to provide something that not only does not cause much trouble during cooling operation, but also does not lead to an increase in size and material costs.
(問題点を解決するための手段)
本発明は上記目的を達成するため、圧縮機、四
方切換弁、室外側熱交換器、膨脹装置及び室内側
熱交換器を順次冷媒用配管で連結したヒートポン
プ式空気調和装置において、上記室外側熱交換器
の冷媒用パイプの径を、上記室内側熱交換器の冷
媒用パイプの径よりも太くしたものである。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides a heat pump in which a compressor, a four-way switching valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger are sequentially connected through refrigerant piping. In the type air conditioner, the diameter of the refrigerant pipe of the outdoor heat exchanger is made larger than the diameter of the refrigerant pipe of the indoor heat exchanger.
(作用)
而して、暖房時に凝縮器となる室内側熱交換器
の冷媒用パイプの径を細径とするとともに、蒸発
器となる室外側熱交換器の冷媒用パイプの径を太
径とすることにより、冷媒の流動圧力損失に大き
な影響を与える蒸発器となる室外側熱交換器の冷
媒用パイプを流れる冷媒の圧力損失を低減させ、
これにより、暖房運転時の能力を増大させるよう
にしたものである。(Function) Therefore, the diameter of the refrigerant pipe of the indoor heat exchanger that serves as a condenser during heating is made small, and the diameter of the refrigerant pipe of the outdoor heat exchanger that serves as an evaporator is made large. By doing so, the pressure loss of the refrigerant flowing through the refrigerant pipe of the outdoor heat exchanger, which serves as the evaporator, which has a large effect on the flow pressure loss of the refrigerant, is reduced.
This increases the capacity during heating operation.
なお、このように構成した場合には、室内側熱
交換器の冷媒用パイプの径を細径とした関係で、
冷房時にはこの室内側熱交換器は蒸発器となり、
流動圧力損失は蒸発器での影響が大きいため、こ
の損失が多くなつてしまうが、一般にもともと能
力が大きいため、それ程支障をきたしてしまうこ
とはない。 In addition, in the case of this configuration, since the diameter of the refrigerant pipe of the indoor heat exchanger is made small,
During cooling, this indoor heat exchanger becomes an evaporator,
Since the flow pressure loss has a large effect on the evaporator, this loss increases, but since the capacity is generally large to begin with, it does not cause much trouble.
(実施例) 以下、図面により本発明を詳細に説明する。(Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.
第1図は、本発明に係るヒートポンプ式空気調
和装置の一実施例を示すもので、圧縮機1は四方
切換弁2を介して室外側熱交換器3に接続され、
この熱交換器3は膨脹装置4を介して室内側熱交
換器5に接続され、この熱交換器5は上記四方切
換弁2を介して圧縮機1に接続されている。 FIG. 1 shows an embodiment of a heat pump type air conditioner according to the present invention, in which a compressor 1 is connected to an outdoor heat exchanger 3 via a four-way switching valve 2,
This heat exchanger 3 is connected to an indoor heat exchanger 5 via an expansion device 4, and this heat exchanger 5 is connected to a compressor 1 via the four-way switching valve 2.
そして、同図中、実線の矢印方向に循環して冷
房動作を、破線の矢印方向に循環して暖房動作を
行う。 In the figure, the cooling operation is performed by circulating in the direction of the solid line arrow, and the heating operation is performed by circulating in the direction of the broken line arrow.
この場合、上記室外側及び室内側の熱交換器
3,5の具体的な一例を示すと、第2図に示すよ
うに、フイン6とこのフイン6の中を蛇行させた
冷媒用パイプ7とからなる。本発明においては、
この冷媒用パイプ7の口径Dを、室内側が細く、
室外側が太くなるように構成したものである。 In this case, a specific example of the heat exchangers 3 and 5 on the outdoor side and the indoor side is shown in FIG. 2. As shown in FIG. Consisting of In the present invention,
The diameter D of this refrigerant pipe 7 is such that the indoor side is narrower.
It is designed so that the outside side is thicker.
このように、暖房時に凝縮器となる室内側熱交
換器の冷媒用パイプの径を細径とするとともに、
蒸発器となる室外側熱交換器の冷媒用パイプの径
を太径とすることにより、特に影響が大きいこの
室外側熱交換器の冷媒用パイプを流れる冷媒の圧
力損失を低減させ、これにより、暖房運転時の能
力を増大させるようにしたものである。 In this way, the diameter of the refrigerant pipe of the indoor heat exchanger that serves as a condenser during heating is made small, and
By increasing the diameter of the refrigerant pipe of the outdoor heat exchanger that serves as the evaporator, the pressure loss of the refrigerant flowing through the refrigerant pipe of the outdoor heat exchanger, which has a particularly large effect, can be reduced. This is designed to increase the capacity during heating operation.
例えば、室外側熱交換器3の冷媒用パイプ7の
径を8.0Φ、室内側熱交換器5の冷媒用パイプ7
の径を9.52Φとした時の暖房能力は、約
3800Kcal/hであるが、これに対し、これとは
逆に室外側熱交換器3の冷媒用パイプ7の径を
9.52Φ、室内側熱交換器5の冷媒用パイプ7の径
を8.0Φとした時の暖房能力は、約3950Kcal/h
となり、材料費を増大させることなく暖房能力を
向上させることができ、また室外側及び室内側の
熱交換器3,5の冷媒用パイプ7の径を共に
9.52Φとした時の暖房能力は、約4000Kcal/hで
あるのに対し、室外側熱交換器3の冷媒用パイプ
7の径を10.0Φ、室内側熱交換器5の冷媒用パイ
プ7の径を9.52Φとした時の暖房能力は、約
4300Kcal/hとなつて、材料費の大幅な増大を
きたすことなく暖房能力を向上させることがで
る。 For example, the diameter of the refrigerant pipe 7 of the outdoor heat exchanger 3 is 8.0Φ, and the diameter of the refrigerant pipe 7 of the indoor heat exchanger 5 is 8.0Φ.
The heating capacity when the diameter is 9.52Φ is approximately
3800Kcal/h, but on the contrary, the diameter of the refrigerant pipe 7 of the outdoor heat exchanger 3 is
When the diameter of the refrigerant pipe 7 of the indoor heat exchanger 5 is 8.0Φ, the heating capacity is approximately 3950Kcal/h.
Therefore, the heating capacity can be improved without increasing the material cost, and the diameters of the refrigerant pipes 7 of the outdoor and indoor heat exchangers 3 and 5 can be made the same.
The heating capacity when 9.52Φ is approximately 4000 Kcal/h, whereas the diameter of the refrigerant pipe 7 of the outdoor heat exchanger 3 is 10.0Φ, and the diameter of the refrigerant pipe 7 of the indoor heat exchanger 5 is The heating capacity when 9.52Φ is approximately
4300Kcal/h, heating capacity can be improved without significantly increasing material costs.
なお、この場合、室内側熱交換器の冷媒用パイ
プの径を細径とした関係で、冷房運転時に流動圧
力損失が多くなるが、もともと冷房時は暖房時よ
り能力が発揮できるため、特に支障を生じてしま
うことはない(暖房時に能力が発揮できないの
は、外気からの吸熱量が少ないためである)。ま
た、支障が生じる場合には熱交換器の通風抵抗を
減少させるため、冷媒用パイプのパイプピツチを
大きくしたり、室内側の風量を増大させる等の手
段を用いれば良い(冷房時に室内側の風量を増加
させると、室内側の吹出し温度が高くなるが、暖
房時と異なり風量感によつて快適さを増す)。 In this case, due to the small diameter of the refrigerant pipe in the indoor heat exchanger, there will be a large flow pressure loss during cooling operation, but this is a particular problem since cooling can achieve more capacity than heating. (The reason why the heating system cannot reach its full potential during heating is because the amount of heat absorbed from the outside air is small.) In addition, if a problem occurs, in order to reduce the ventilation resistance of the heat exchanger, measures such as increasing the pipe pitch of the refrigerant pipes or increasing the air volume on the indoor side (air volume on the indoor side during cooling) can be used. Increasing the airflow temperature will raise the indoor air temperature, but unlike heating, the feeling of airflow increases comfort.)
従つて、結果的には材料費のそれ程の増大を伴
うことなく、暖房時の特性向上を図ることがで
き、しかもこの特性の向上により、冷暖能力比を
必要負荷に一致させることが容易にでき、従来の
ようにヒータ等による補助暖房が不要となるた
め、コストの低減と安全性の向上を図ることがで
きる。 Therefore, as a result, it is possible to improve the heating characteristics without a significant increase in material costs, and this improvement in characteristics makes it easier to match the cooling/heating capacity ratio to the required load. Since auxiliary heating using a heater or the like is not required as in the conventional case, it is possible to reduce costs and improve safety.
本発明によれば、冷媒の流動圧力損失を冷房運
転時より暖房運転時に少なくしているため、暖房
運転時に十分な能力を発揮することができ、ヒー
タ等による補助暖房を不要としたヒートポンプ式
空気調和装置を得ることができる。
According to the present invention, the flow pressure loss of the refrigerant is lower during heating operation than during cooling operation, so that sufficient performance can be demonstrated during heating operation, and heat pump type air that eliminates the need for auxiliary heating using a heater etc. You can get a harmonizer.
第1図は本発明を適応して有用なヒートポンプ
式空気調和装置を示す概略説明図、第2図はこの
空気調和装置に使用される室内側及び室外側の各
熱交換器の概要を示す説明図である。
1……圧縮機、2……四方切換弁、3……室外
側熱交換器、4……膨脹装置、5……室内側熱交
換器、7……冷媒用パイプ。
Fig. 1 is a schematic explanatory diagram showing a useful heat pump type air conditioner to which the present invention is applied, and Fig. 2 is an explanation showing an outline of each indoor and outdoor heat exchanger used in this air conditioner. It is a diagram. 1... Compressor, 2... Four-way switching valve, 3... Outdoor heat exchanger, 4... Expansion device, 5... Indoor heat exchanger, 7... Refrigerant pipe.
Claims (1)
装置及び室内側熱交換器を順次冷媒用配管で連結
したヒートポンプ式空気調和装置において、上記
室外側熱交換器の冷媒用パイプの径を、上記室内
側熱交換器の冷媒用パイプの径よりも太くしたこ
とを特徴とするヒートポンプ式空気調和装置。1. In a heat pump air conditioner in which a compressor, a four-way switching valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger are sequentially connected by refrigerant piping, the diameter of the refrigerant pipe of the outdoor heat exchanger is , a heat pump type air conditioner characterized in that the diameter is larger than the diameter of the refrigerant pipe of the indoor heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP697179A JPS5599562A (en) | 1979-01-24 | 1979-01-24 | Heat pump type air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP697179A JPS5599562A (en) | 1979-01-24 | 1979-01-24 | Heat pump type air conditioner |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63322059A Division JPH01200165A (en) | 1988-12-22 | 1988-12-22 | Heat pump type air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5599562A JPS5599562A (en) | 1980-07-29 |
JPS633231B2 true JPS633231B2 (en) | 1988-01-22 |
Family
ID=11653077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP697179A Granted JPS5599562A (en) | 1979-01-24 | 1979-01-24 | Heat pump type air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5599562A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01200165A (en) * | 1988-12-22 | 1989-08-11 | Toshiba Corp | Heat pump type air conditioner |
JP2000257974A (en) * | 1999-03-02 | 2000-09-22 | Daikin Ind Ltd | Refrigerating system |
-
1979
- 1979-01-24 JP JP697179A patent/JPS5599562A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5599562A (en) | 1980-07-29 |
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