JP2863246B2 - Air conditioning - Google Patents
Air conditioningInfo
- Publication number
- JP2863246B2 JP2863246B2 JP5830390A JP5830390A JP2863246B2 JP 2863246 B2 JP2863246 B2 JP 2863246B2 JP 5830390 A JP5830390 A JP 5830390A JP 5830390 A JP5830390 A JP 5830390A JP 2863246 B2 JP2863246 B2 JP 2863246B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- heat exchanger
- way valve
- refrigerant cycle
- cooling
- 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 - Fee Related
Links
Landscapes
- Other Air-Conditioning Systems (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は冷暖房装置の冷媒サイクルに関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a refrigerant cycle of a cooling and heating device.
従来の技術 従来、熱源側冷媒サイクルと利用側冷媒サイクルに分
離した冷暖房装置の冷媒サイクルは特開昭62−272040号
公報に示されており、第２図にように構成されていた。
第２図において、１は圧縮機、２は熱源側四方弁、３は
熱源側熱交換器、４は冷房用減圧装置、５は暖房用減圧
装置、６は暖房時冷房用減圧装置４を閉成する逆止弁、
７は冷房時暖房用減圧装置５を閉成する逆止弁、８は第
１補助熱交換器でこれらを環状に連接し、熱源側冷媒サ
イクルを形成している。９は第２補助熱交換器で第１補
助熱交換器８と熱交換するように一体に形成されてい
る。10は冷媒量調整タンクで冷房時と暖房時の冷媒量を
調整している。11は冷媒搬送装置で冷房時と暖房時で冷
媒の流出方向が反対となる可逆特性をもっており、これ
らは熱源側ユニットａに収納されている。12は利用側熱
交換器で利用側ユニットｂに収納され接接配管c,c′で
熱源側ユニットａと接続されている。前記第２補助熱交
換器９と冷媒量調整タンク10、冷媒搬送装置11、利用側
熱交換器12および接続配管c,c′を環状に連続し利用側
冷媒サイクルを形成している。2. Description of the Related Art Conventionally, a refrigerant cycle of a heating / cooling apparatus separated into a heat source side refrigerant cycle and a use side refrigerant cycle is disclosed in Japanese Patent Application Laid-Open No. 62-272040, and is configured as shown in FIG.
In FIG. 2, 1 is a compressor, 2 is a four-way valve on the heat source side, 3 is a heat source side heat exchanger, 4 is a decompression device for cooling, 5 is a decompression device for heating, and 6 is a decompression device 4 for cooling during heating. Check valve,
Reference numeral 7 denotes a check valve for closing the cooling / heating decompression device 5, and reference numeral 8 denotes a first auxiliary heat exchanger, which is connected in a ring shape to form a heat source side refrigerant cycle. Reference numeral 9 denotes a second auxiliary heat exchanger which is integrally formed so as to exchange heat with the first auxiliary heat exchanger 8. Reference numeral 10 denotes a refrigerant amount adjusting tank for adjusting the amount of refrigerant during cooling and during heating. Numeral 11 denotes a refrigerant transport device having reversible characteristics in which the refrigerant flows out in opposite directions during cooling and heating, and these are housed in the heat source side unit a. Reference numeral 12 denotes a use side heat exchanger which is housed in the use side unit b and is connected to the heat source side unit a by connecting pipes c and c '. The second auxiliary heat exchanger 9, the refrigerant amount adjusting tank 10, the refrigerant transfer device 11, the use side heat exchanger 12, and the connection pipes c and c 'are connected in a ring to form a use side refrigerant cycle.
以上のように構成された冷暖房装置についてその動作
を説明する。The operation of the cooling / heating device configured as described above will be described.
冷房運転時は図中実線の冷媒サイクルとなり、熱源側
冷媒サイクルでは、圧縮機１からの高温高圧ガスは四方
弁２を通り熱源側熱交換器３で放熱して凝縮液化し逆止
弁６を通って冷房用膨張弁４で減圧され第１補助熱交換
器８で蒸発して熱源側四方弁２を通り圧縮機１へ循環す
る。この時利用側冷媒サイクルの第２補助熱交換器９と
前記第１補助熱交換器８が熱交換し、利用側冷媒サイク
ル内のガス冷媒が冷却されて液化し、冷媒量調整タンク
10を通って冷媒搬送装置11に送られ、この冷媒搬送装置
１Ｉのよって接続配管ｃを通って利用側熱交換器12へ送
られて冷房して吸熱蒸発し、ガス化して接続配管ｃ′を
通って第２補助熱交換器９に循環することになる。During the cooling operation, the refrigerant cycle is a solid line in the figure. In the heat source-side refrigerant cycle, the high-temperature and high-pressure gas from the compressor 1 passes through the four-way valve 2 and radiates heat in the heat source-side heat exchanger 3 to condense and liquefy. Then, the pressure is reduced by the cooling expansion valve 4, evaporated in the first auxiliary heat exchanger 8, and circulated to the compressor 1 through the heat source side four-way valve 2. At this time, the second auxiliary heat exchanger 9 of the use side refrigerant cycle and the first auxiliary heat exchanger 8 exchange heat, and the gas refrigerant in the use side refrigerant cycle is cooled and liquefied, and the refrigerant amount adjusting tank
10 is sent to the refrigerant conveying system 11 through a refrigerant conveying device 1 through the connection pipe c by the I sent to the usage-side heat exchanger 12 absorbs heat evaporate cooling, connected to the gasification pipe c ' To the second auxiliary heat exchanger 9.
一方、暖房運転時においては、図中破線の冷媒サイク
ルとなり、熱源側冷媒サイクルでは、圧縮機１からの高
温高圧冷媒は熱源側四方弁２から第１補助交換器８に送
られ、放熱して凝縮液化し、逆止弁７から暖房用減圧装
置５で減圧し、熱源側熱交換器３で吸熱蒸発し熱源側四
方弁２を通って圧縮機１へ循環する。この時利用側冷媒
サイクルの第２補助熱交換器９と前記第１補助熱交換器
８が熱交換し、利用側冷媒サイクル内の液冷媒が加熱さ
れてガス化し、接続配管ｃ′を通って利用側熱交換器12
へ送られ、暖房して放熱液化し接続配管ｃを通って冷媒
搬送装置11へ送られ、冷媒量調整タンク10から第２補助
熱交換器９へ循環する。On the other hand, during the heating operation, the refrigerant cycle is indicated by a broken line in the drawing. In the heat source-side refrigerant cycle, the high-temperature and high-pressure refrigerant from the compressor 1 is sent from the heat source-side four-way valve 2 to the first auxiliary exchanger 8, and radiates heat. The condensed liquid is decompressed from the check valve 7 by the heating decompression device 5, absorbed and evaporated by the heat source side heat exchanger 3, and circulated to the compressor 1 through the heat source side four-way valve 2. At this time, the second auxiliary heat exchanger 9 of the use side refrigerant cycle and the first auxiliary heat exchanger 8 exchange heat, the liquid refrigerant in the use side refrigerant cycle is heated and gasified, and passes through the connection pipe c ′. User side heat exchanger 12
The refrigerant is heated, radiated and liquefied, sent to the refrigerant transfer device 11 through the connection pipe c, and circulated from the refrigerant amount adjustment tank 10 to the second auxiliary heat exchanger 9.
発明が解決しようとする課題 しかしながら上記のような構成では、利用側冷媒サイ
クルの冷媒搬送装置に可逆特性をもたらせる必要があ
り、冷媒搬送装置が複雑な構造になるとともに価格的に
も高くなる。また、パイロット式四方弁を使って切換え
る方法も考えられるが、利用側冷媒サイクルは、差圧が
少ないため、パイロット式四方弁を使用出来ない課題を
有していた。SUMMARY OF THE INVENTION However, in the above-described configuration, it is necessary to provide a reversible characteristic to the refrigerant transfer device of the use-side refrigerant cycle, and the refrigerant transfer device has a complicated structure and is expensive. . A method of switching using a pilot-type four-way valve is also conceivable, but the use-side refrigerant cycle has a problem that the pilot-type four-way valve cannot be used because the differential pressure is small.
課題を解決するための手段 上記課題を解決するために、本発明の冷暖房装置は、
利用側冷媒サイクルに四方弁を設け、この四方弁と並列
に冷媒搬送装置を設けるとともに前記四方弁のパイロッ
トバルブと圧縮機の低圧側とを連通した連通管を備えた
ものである。Means for Solving the Problems In order to solve the above problems, the cooling and heating device of the present invention,
A four-way valve is provided in the use-side refrigerant cycle, a refrigerant transfer device is provided in parallel with the four-way valve, and a communication pipe is provided for communicating the pilot valve of the four-way valve with the low-pressure side of the compressor.
作用 本発明は上記した構成によって利用側冷媒サイクルの
差圧が少なくても四方弁の切換えが確実となり、一方向
性の冷媒搬送装置によって利用側冷媒サイクルの冷媒循
環方向を簡単に可逆にできることになる。Function The present invention is such that the four-way valve can be switched even if the differential pressure of the use side refrigerant cycle is small by the above-described configuration, and the refrigerant circulation direction of the use side refrigerant cycle can be easily reversible by the one-way refrigerant transfer device. Become.
実施例 以下本発明の一実施例の冷暖房装置について、図面を
参照しながら説明する。第１図は本発明の実施例におけ
る冷暖房装置の冷媒サイクルを示すものである。第１図
において、13は利用側四方弁であり冷媒搬送装置11は一
方向性であり利用側四方弁13と並列に設けられている。
その他は前記従来例と同じであり、ここでは同一符号を
用いて示し説明を省略する。またこの冷媒サイクルの動
作についても前記従来例と同じであり詳細は省略する
が、利用側四方弁13のパイロットバルブ13bのＡ室13cと
Ｂ室13dとは、圧縮機１の低圧側と電磁弁14をかいして
連通した連通管13eで接続されている。Embodiment Hereinafter, a cooling and heating apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a refrigerant cycle of a cooling and heating apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 13 denotes a use-side four-way valve, and the refrigerant conveying device 11 is unidirectional and is provided in parallel with the use-side four-way valve 13.
The other parts are the same as those of the conventional example, and the same reference numerals are used here to omit the description. The operation of the refrigerant cycle is the same as that of the conventional example, and the details thereof are omitted. However, the A chamber 13c and the B chamber 13d of the pilot valve 13b of the use side four-way valve 13 are connected to the low pressure side of the compressor 1 and the electromagnetic valve. They are connected by a communication pipe 13e which is communicated through 14.
ここで利用側四方弁13の動作について説明するが、電
磁弁14は利用側ユニットｂの運転に連動して数分間（た
とえば２分）開となり、その後閉となる。Here, the operation of the usage-side four-way valve 13 will be described. The solenoid valve 14 opens for several minutes (for example, two minutes) in conjunction with the operation of the usage-side unit b, and then closes.
利用側ユニットｂが冷房運転されると四方弁コイル13
aには、通電されずスプリング13f・13gの釣り合いによ
りパイロットバルブ13bのＡ室13cをふさぐ。これによ
り、冷媒搬送装置11から吐出された冷媒がピストン13h
・13iの小孔13j・13kを通りキャピラリチューブ13l・13
mを経てパイロットバルブ13bのＡ室13cおよびＢ室13dに
入る。ピストン13iから入った冷媒は、パイロットバル
ブ13bのＢ室13dが運転開始すぐは電磁弁14が開いている
ため連通管13eと低圧側とが、連通しているため、減圧
される。ピストン13hから入った冷媒は、パイロットバ
ルブ13bのＡ室13cがふさがっているため圧力は、維持さ
れる。When the use side unit b is operated for cooling, the four-way valve coil 13
In a, the A chamber 13c of the pilot valve 13b is closed by the balance between the springs 13f and 13g without being energized. As a result, the refrigerant discharged from the refrigerant conveying device 11
・ Capillary tube 13l ・ 13 passing through small holes 13j ・ 13k of 13i
After passing through m, it enters the A chamber 13c and the B chamber 13d of the pilot valve 13b. The refrigerant that has entered through the piston 13i is decompressed immediately after the B chamber 13d of the pilot valve 13b starts operating because the solenoid valve 14 is open and the communication pipe 13e communicates with the low-pressure side. The pressure of the refrigerant entering from the piston 13h is maintained because the A chamber 13c of the pilot valve 13b is closed.
ここで生じた圧力差がスライドバルブ13nを左側に押
しサイクルを形成する。このサイクルを形成した後、電
磁弁14は閉となる。The pressure difference generated here pushes the slide valve 13n to the left to form a cycle. After forming this cycle, the solenoid valve 14 is closed.
また通電管13eは毛細管であり、従って利用側冷媒サ
イクルから熱源側冷媒サイクルへの冷媒の流れは、微量
でありシステム的には問題とならない。The current-carrying tube 13e is a capillary tube, so that the flow of the refrigerant from the use-side refrigerant cycle to the heat-source-side refrigerant cycle is very small and does not pose a problem in terms of system.
暖房時は四方弁コイル13aに通電され、パイロットバ
ルブ13bのＢ室131dをふさぐ動きをする。At the time of heating, the four-way valve coil 13a is energized, and moves to close the B chamber 131d of the pilot valve 13b.
以下は前記した説明と同じであり省略する。 The following is the same as the above description and will not be described.
このようにすることにより、利用側冷媒サイクルの差
圧が少なくても、利用側四方弁13を確実に切換えること
ができ、冷媒搬送装置が一方向性でも利用側冷媒サイク
ルの循環方向を可逆にできるものである。By doing so, even if the differential pressure of the use-side refrigerant cycle is small, the use-side four-way valve 13 can be reliably switched, and the circulation direction of the use-side refrigerant cycle can be reversed even if the refrigerant transport device is unidirectional. You can do it.
以上のように本実施例によれば、利用側冷媒サイクル
に差圧がなく、また冷媒搬送装置が一方向性でも利用側
冷媒サイクルの循環方向を可逆にできるので、冷媒搬送
装置の構造が簡単になり安価にすることができる。As described above, according to the present embodiment, there is no differential pressure in the use-side refrigerant cycle, and the direction of circulation of the use-side refrigerant cycle can be reversible even if the refrigerant transfer device is unidirectional, so that the structure of the refrigerant transfer device is simple. And can be inexpensive.
発明の効果 以上のように本発明は利用側冷媒サイクルに設けた利
用側四方弁と並列に冷媒搬送装置を設け前記利用側四方
弁のパイロットバルブと圧縮機の低圧側とを連通した連
通管を備えることにより、利用側冷媒サイクルの差圧が
少なくても、また冷媒搬送装置が一方向性でも利用側冷
媒サイクルの循環方向を可逆にできるので、冷媒搬送装
置の構造が簡単になる効果がある。Effect of the Invention As described above, the present invention provides a communication pipe that provides a refrigerant transfer device in parallel with the use side four-way valve provided in the use side refrigerant cycle and communicates the pilot valve of the use side four-way valve with the low pressure side of the compressor. By providing, even if the differential pressure of the use-side refrigerant cycle is small, and even if the refrigerant transfer device is unidirectional, the circulation direction of the use-side refrigerant cycle can be reversible, so that the structure of the refrigerant transfer device is simplified. .
第１図は本発明の一実施例における冷暖房装置の冷媒サ
イクル図、第２図は深来の冷暖房装置の冷媒サイクル図
である。 ３……熱源側熱交換器、８……第１補助熱交換器、９…
…第２補助熱交換器、11……冷媒搬送装置、12……利用
側熱交換器、13……利用側四方弁、13b……パイロット
バルブ、13e……連通管、14……電磁弁。FIG. 1 is a refrigerant cycle diagram of a cooling and heating device in one embodiment of the present invention, and FIG. 2 is a refrigerant cycle diagram of a deep cooling and heating device. 3 ... heat source side heat exchanger, 8 ... first auxiliary heat exchanger, 9 ...
... Second auxiliary heat exchanger, 11 ... Refrigerant conveying device, 12 ... Use side heat exchanger, 13 ... Use side four-way valve, 13b ... Pilot valve, 13e ... Communication pipe, 14 ... Solenoid valve.
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F24F 5/00 F24F 5/00 101Continuation of front page (58) Field surveyed (Int.Cl. 6 , DB name) F24F 5/00 F24F 5/00 101
Claims (1)
置および第１補助熱交換器を環状に連接してなる熱源側
冷媒サイクルとこの第１補助熱交換器と一体に形成し、
熱交換する第２補助熱交換器と利用側四方弁および利用
側熱交換器を環状に連接し、この利用側四方弁と並列に
冷媒搬送装置を設けてなる利用側冷媒サイクルと、前記
利用側四方弁のパイロットバルブと圧縮機の低圧側とを
連通した連通管を備えたことを特徴とする冷暖房装置。1. A heat-source-side refrigerant cycle in which a compressor, a four-way valve, a heat-source-side heat exchanger, a pressure reducing device, and a first auxiliary heat exchanger are connected in a ring shape and integrally formed with the first auxiliary heat exchanger. ,
A use-side refrigerant cycle including a second auxiliary heat exchanger that exchanges heat, a use-side four-way valve, and a use-side heat exchanger connected in a ring shape, and a refrigerant conveyance device provided in parallel with the use-side four-way valve; A cooling and heating device comprising a communication pipe communicating a pilot valve of a four-way valve with a low-pressure side of a compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5830390A JP2863246B2 (en) | 1990-03-09 | 1990-03-09 | Air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5830390A JP2863246B2 (en) | 1990-03-09 | 1990-03-09 | Air conditioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03260529A JPH03260529A (en) | 1991-11-20 |
| JP2863246B2 true JP2863246B2 (en) | 1999-03-03 |
Family
ID=13080460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5830390A Expired - Fee Related JP2863246B2 (en) | 1990-03-09 | 1990-03-09 | Air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2863246B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094546B (en) * | 2018-01-27 | 2022-06-07 | 浙江盾安机械有限公司 | Four-way valve and air conditioning system |
-
1990
- 1990-03-09 JP JP5830390A patent/JP2863246B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03260529A (en) | 1991-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |