JPH03260529A - Airconditioning apparatus - Google Patents
Airconditioning apparatusInfo
- Publication number
- JPH03260529A JPH03260529A JP5830390A JP5830390A JPH03260529A JP H03260529 A JPH03260529 A JP H03260529A JP 5830390 A JP5830390 A JP 5830390A JP 5830390 A JP5830390 A JP 5830390A JP H03260529 A JPH03260529 A JP H03260529A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- user
- way valve
- valve
- chamber
- 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.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title abstract description 4
- 239000003507 refrigerant Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
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
。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a refrigerant cycle for a heating and cooling system.
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６２−２７２０
４０号公報に示されており、第２図のように構成されて
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、６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６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。Conventional technology Conventionally, the refrigerant cycle of air-conditioning equipment separated into a heat source side refrigerant cycle and a user side refrigerant cycle was disclosed in Japanese Patent Application Laid-Open No. 62-2720.
It was disclosed in Japanese Patent No. 40 and was constructed 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 exchanger on the heat source side, 4 is a cooling pressure reducing device, 6 is a heating pressure reducing device, and 6 is a cooling pressure reducing device 4 that is closed during heating. 7 is a check valve that closes the pressure reducing device 6 for heating during cooling;
Reference numeral 8 denotes a first auxiliary heat exchanger, which is connected in an annular manner to form a heat source side refrigerant cycle. A second auxiliary heat exchanger 9 is integrally formed to exchange heat with the first auxiliary heat exchanger 8. 10 is a refrigerant amount adjustment tank that adjusts the amount of refrigerant during cooling and heating.
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）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）ｂに収納され接接配管Ｃ、Ｃ’で熱源側ユ
ニッ）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。Reference numeral 11 denotes a refrigerant conveying device which has a reversible characteristic such that the outflow direction of the refrigerant is opposite during cooling and heating, and is housed in the heat source side unit) a. Reference numeral 12 denotes a heat exchanger on the user side, which is housed in the user side unit)b and connected to the heat source side unit)a through contact pipes C and C'. The second auxiliary heat exchanger 9, the refrigerant amount adjustment tank 10, the refrigerant transport device 11, the user-side heat exchanger 12, and the connecting pipes c and c' are connected in an annular manner to form a user-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 heating and cooling system configured as described above will be explained.
冷房運転時は図中実線の冷媒サイクルとなシ、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を通う熱源側熱交換器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を通う圧縮機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１
Ｑを通って冷媒搬送装置１１に送られ、この冷媒搬送装
置１１によって接続配管Ｃを通って利用側熱交換Ｂ１２
へ送られて冷房して吸熱蒸発し、ガス化して接続配管ど
を通って第２補助熱交換器９に循環することになる。During cooling operation, the refrigerant cycle shown by the solid line in the figure is used.In the refrigerant cycle on the heat source side, the high-temperature, high-pressure gas from the compressor 1 passes through the four-way valve 2, radiates heat in the heat source side heat exchanger 3, condenses and liquefies, and passes through the check valve. 6, the pressure is reduced by the cooling expansion valve 4, evaporated by the first auxiliary heat exchanger 8, and circulated to the compressor 1 passing through the four-way valve 2 on the heat source side. At this time, the second auxiliary heat exchanger 9 of the user side refrigerant cycle and the first auxiliary heat exchanger 8 exchange heat, and the gas refrigerant in the user side refrigerant cycle is cooled and liquefied, and the refrigerant amount adjustment tank 1
The refrigerant is sent to the refrigerant conveying device 11 through the refrigerant conveying device 11, and the heat is exchanged on the user side B12 through the connecting pipe C by this refrigerant conveying device 11.
It is cooled, evaporated, gasified, and circulated through the connecting piping to the second auxiliary heat exchanger 9.
一方、暖房運転時におりでは、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
高圧ガスは熱源側四方弁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
６で減圧し、熱源側熱交換器３で吸Ｐ、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が一交換し、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♂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１ｏから第２
補助熱交換器９へ循環する。On the other hand, during heating operation, the refrigerant cycle is indicated by the broken line in the figure, and in the heat source side refrigerant cycle, the high temperature and high pressure gas from the compressor 1 is sent from the heat source side four-way valve 2 to the first auxiliary exchanger 8, where it radiates heat. It is condensed and liquefied, the pressure is reduced through the check valve 7 and the heating pressure reducing device 6, the heat source side heat exchanger 3 absorbs P, evaporates, and circulates through the heat source side four-way valve 2 to the compressor 1. At this time, the second auxiliary heat exchanger 9 and the first auxiliary heat exchanger 8 of the user side refrigerant cycle are exchanged, and the liquid refrigerant in the user side refrigerant cycle is heated and gasified, and is used through the connecting pipe ♂. Side heat exchanger 12
It is heated, liquefied by heat radiation, and sent to the refrigerant conveying device 11 through the connecting pipe C, and is transferred from the refrigerant amount adjustment tank 1o to the second refrigerant.
Circulate to 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
ｌしの冷媒搬送装置に可逆特性をもたせる必要があシ、
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。筐た、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。Problems to be Solved by the Invention However, in the above configuration, it is necessary to provide reversible characteristics to the refrigerant transport device for the user side refrigerant cycle.
The refrigerant conveyance device has a complicated structure and is also expensive. A method of switching using a pilot-operated four-way valve could be considered, but the problem was that the pilot-operated four-way valve could not be used because the differential pressure in the user-side refrigerant cycle was 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 air conditioning system of the present invention includes a four-way valve in the user-side refrigerant cycle, a refrigerant conveying device in parallel with the four-way valve, and a pilot valve of the four-way valve. It is equipped with a communication pipe that communicates between the compressor and 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。Effects of the present invention The above-described configuration makes it possible to ensure switching of the four-way valve even if the differential pressure in the user-side refrigerant cycle is small, and the refrigerant circulation direction in the user-side refrigerant cycle can be easily reversed by the unidirectional refrigerant conveyance 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
訃いて、１３は利用側四方弁であり冷媒搬送装置１１は
一方向性であう利用側四方弁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ｓｂ、ここでは同一
符号を用いて示し説明を省略する。筐たこの冷媒サイク
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のパイロン）パルプ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。EXAMPLE Hereinafter, a heating and cooling system according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a refrigerant cycle of a heating and cooling system according to an embodiment of the present invention. Referring to FIG. 1, reference numeral 13 indicates a four-way valve on the user side, and the refrigerant conveying device 11 is provided in parallel with the four-way valve 13 on the user side, which is unidirectional. , and the others are the same as in the conventional example, sb, which are designated by the same reference numerals and will not be described further. The operation of the refrigerant cycle of the housing is also the same as that of the conventional example, and the details will be omitted. They are connected through a communication pipe 13e that communicates through a solenoid valve 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）ｂの運転に連動して数分間（
たとえば２分）開となり、その後間となる。The operation of the user-side four-way valve 13 will be explained here.The solenoid valve 14 is operated for several minutes (
For example, it will be open for 2 minutes, and then it will be in between.
利用側ユニソ）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１３ｉ・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
。これによシ、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１３ｉ・１３ｋを通りキ
ャピラリチューブ１３１・１３ｍ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１３・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 user-side Uniso) b is operated for cooling, the four-way valve coil 13
A is not energized and the A chamber 13c of the pilot valve 13b is closed by the balance of the springs 13i and 13g. As a result, the refrigerant discharged from the refrigerant transport device 11 passes through the small holes 13i and 13k of the pistons 13h and 13i, passes through the capillary tubes 131 and 13m, and enters the A chamber 13c and the B chamber 13d of the pilot valve 13b. The refrigerant entering from the piston 13i is depressurized in the B chamber 13d of the pilot valve 13b because the solenoid valve 14 is open immediately after the start of operation and the communication pipe 13 is in communication 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 blocked.
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, forming a cycle. After forming this cycle, the solenoid valve 14 is closed.
筐た通電管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 housing energizing tube 13e is a capillary tube, so the flow of refrigerant from the user side refrigerant cycle to the heat source side refrigerant cycle is very small and does not pose a problem from a system perspective.
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１３ｄをふさぐ動きをする。During heating, the four-way valve coil 13a is energized and moves to block the B chamber 13d 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 description is the same as the above description and will be omitted.
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 this, even if the differential pressure in the user-side refrigerant cycle is small, the user-side four-way valve 13 can be reliably switched, and even if the refrigerant conveyance device is unidirectional, the circulation direction of the user-side refrigerant cycle can be reversible. It is possible.
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 this embodiment, there is no differential pressure in the user-side refrigerant cycle, and even if the refrigerant transport device is unidirectional, the circulation direction of the user-side refrigerant cycle can be made reversible, so the structure of the refrigerant transport device is simple. It can be made cheaper.
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は前記利用側四方弁
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、筐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。Effects of the Invention As described above, the present invention provides a refrigerant conveying device in parallel with a user-side four-way valve provided in a user-side refrigerant cycle, and a communication pipe that communicates the pilot valve of the user-side four-way valve with the low-pressure side of the compressor. Even if the differential pressure in the user-side refrigerant cycle is small, the circulation direction of the user-side refrigerant cycle can be made reversible even if the enclosed refrigerant transport device is unidirectional, which simplifies the structure of the refrigerant transport device. There is.
第１図は本発明の一実施例に訃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 heating and cooling device according to an embodiment of the present invention, and FIG. 2 is a diagram of a refrigerant cycle of a conventional heating and cooling device. 3...Heat source side heat exchanger, 8...First auxiliary heat exchanger, 9...Second auxiliary heat exchanger, 11.
...Refrigerant conveyance device, 12...Use side heat exchanger, 13...Use side four-way valve, 13b...
...Pilot valve, 13e...Communication pipe, 14
·····solenoid valve.
Claims (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。Compressor, four-way valve, heat source side heat exchanger, pressure reducing device and first
A heat source side refrigerant cycle formed by connecting auxiliary heat exchangers in a ring, a second auxiliary heat exchanger that is formed integrally with the first auxiliary heat exchanger and exchanges heat, a user side four-way valve, and a user side heat exchanger. A user-side refrigerant cycle connected in an annular manner and provided with a refrigerant transfer device in parallel with the user-side four-way valve, and a communication pipe that communicates the pilot valve of the user-side four-way valve with the low-pressure side of the compressor. A heating and cooling system featuring:
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 true JPH03260529A (en) | 1991-11-20 |
| JP2863246B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094546A (en) * | 2018-01-27 | 2019-08-06 | 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
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094546A (en) * | 2018-01-27 | 2019-08-06 | 浙江盾安机械有限公司 | Four-way valve and air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2863246B2 (en) | 1999-03-03 |
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| JPS6266068A (en) | Air-cooled double-effect absorption water heater and chiller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |