JPH01273954A - Heat pump - Google Patents
Heat pumpInfo
- Publication number
- JPH01273954A JPH01273954A JP10236988A JP10236988A JPH01273954A JP H01273954 A JPH01273954 A JP H01273954A JP 10236988 A JP10236988 A JP 10236988A JP 10236988 A JP10236988 A JP 10236988A JP H01273954 A JPH01273954 A JP H01273954A
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- temperature
- winding
- heat pump
- motor
- 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
- 238000004804 winding Methods 0.000 claims abstract description 19
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002966 varnish Substances 0.000 claims abstract description 10
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 9
- 239000003507 refrigerant Substances 0.000 claims description 23
- 239000004844 aliphatic epoxy resin Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005437 stratosphere Substances 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、冷媒冷却の電動機により駆動される遠心式圧
縮機を用いたヒートポンプに関するもの〒あり、特に冷
媒としてジクロロトリフルオロエタン（以下ｎ−１２３
と称す）を用いることが〒きる、電動機により駆動され
る遠心式圧縮機を用いたヒートポンプに関するものｔあ
る。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a heat pump using a centrifugal compressor driven by an electric motor for cooling a refrigerant, and in particular dichlorotrifluoroethane (hereinafter referred to as n- 123
There are heat pumps that use a centrifugal compressor driven by an electric motor, which can be used in the heat pump.
従来、ヒートポンプの１種として、電動機により駆動さ
れる遠心式圧縮機、凝縮器、減圧装置、蒸発器及びこれ
らの機器を接続する配管経路などｆｍ成され、これらの
機器内を循環する冷媒と同一の冷媒！前記電動機が冷却
されるようになっているヒートポンプがあるが、このヒ
ートポンプフは冷媒としてトリクロロモノフルオロメタ
ン（以下Ｒ−１１と称す）が用いられている。Conventionally, a type of heat pump consists of a centrifugal compressor driven by an electric motor, a condenser, a pressure reducing device, an evaporator, and piping routes connecting these devices, and the same refrigerant circulates within these devices. refrigerant! There is a heat pump in which the electric motor is cooled, and this heat pump uses trichloromonofluoromethane (hereinafter referred to as R-11) as a refrigerant.
しかしながら、とのＲ−１１は成層圏のオゾン層を破壊
するという問題があり、世界的にその規制がなされつつ
ある。However, R-11 has the problem of destroying the ozone layer in the stratosphere, and regulations are being put in place worldwide.
その代替冷媒の候補としてＲ−１２３が研究されている
が、この冷媒は電動機の電線の有機絶縁材料に対して強
い溶解作用や膨潤作用があり、電動機巻線の絶縁破壊事
故を引き起すという大きな欠点があり、このため冷媒冷
却の電動機により駆動されるヒートポンプには使用マき
ないもの１あった。R-123 is being researched as a candidate for an alternative refrigerant, but this refrigerant has a strong dissolving and swelling effect on the organic insulating material of electric motor wires, and has the potential to cause dielectric breakdown accidents in motor windings. There are some drawbacks that make it unusable as a heat pump driven by an electric motor for refrigerant cooling.
本発明は、電動機により駆動される遠心式圧縮機、凝縮
器、減圧装置、蒸発器及びこれらの機器を接続する配管
経路などで構成され、これらの機器内を循環する冷媒と
同一の冷媒１前記電動機が冷却されるようになっている
ヒートポンプにおいて、前記冷媒としてＲ−１２５を用
い、前記電動機コイル部の温度を直接又は間接的に検出
し、この温度を１２０℃以下とする温度制御装置を有し
、且つ前記電動機巻線の処理フェスが環状脂肪エポキシ
樹脂であることを特徴とするヒートポンプによって前記
課題を解決した。The present invention consists of a centrifugal compressor driven by an electric motor, a condenser, a pressure reducing device, an evaporator, and a piping route connecting these devices, and the same refrigerant 1 as the refrigerant circulating in these devices is used. A heat pump in which an electric motor is cooled includes a temperature control device that uses R-125 as the refrigerant, directly or indirectly detects the temperature of the electric motor coil part, and controls the temperature to 120°C or less. The above problem has been solved by a heat pump characterized in that the treatment face of the motor winding is made of cyclic aliphatic epoxy resin.
ヒートポンプを上記の如く構成することにより、成Ｊ−
圏オシン層をほとんど破壊しないＲ−１２３を用いても
高寿命のヒートポンプを提供することが可能となった。By configuring the heat pump as described above,
It has become possible to provide a heat pump with a long life even by using R-123, which hardly destroys the ossine layer.
このヒートポンプ〒は電動機のコイル部に前記冷媒が直
接接触することＫより冷却されるので、冷却効率がよい
。This heat pump has good cooling efficiency because it is cooled by direct contact of the refrigerant with the coil portion of the electric motor.
なお、ここ〒、ヒートポンプとは、温流体を製造する狭
義のヒートポンプのみならず、冷流体を製造する冷凍機
も含むものとする。Note that here, the term "heat pump" includes not only heat pumps in the narrow sense that produce hot fluids, but also refrigerators that produce cold fluids.
本発明における処理フェスとは、第２図に示すごとく主
絶縁材１あるマイカテープ層のすき間をうめる充填樹脂
のことをいう。本発明においては電動機巻線の処理フェ
スが環状脂肪エポキシ樹脂フあるが、それは外側がその
環状エポキシ樹脂〒あればよ（、内側は他の樹脂、例え
はビスフェノールＡ型エポキシ樹脂）あってもよい。The treated face in the present invention refers to a filled resin that fills the gaps between the mica tape layers of the main insulating material 1, as shown in FIG. In the present invention, the treatment face of the motor winding is made of a cyclic aliphatic epoxy resin, but it is only necessary that the outside be made of that cyclic epoxy resin (and the inside may be made of other resin, such as bisphenol A type epoxy resin). .
本発明における電動機巻線の処理フェスの環状脂肪エポ
キシ樹脂は、Ｒ−１２３に対して殆ど溶解したり、膨潤
、変色することがないの〒、この電動機をＲ−１２３と
直接接触させることにより冷却させても絶縁破壊事故を
起すことがない。ただし、環状脂肪エポキシ樹脂は１５
０℃になるとＲ−１２３に対する変色現象が出てくるの
で実用上巻線の温度は１２０℃を越えないようにコイル
部の温度を１２０℃以下に保つ必要がある。The cycloaliphatic epoxy resin used in the processing face of the motor windings in the present invention hardly dissolves, swells or discolors in R-123, and is cooled by bringing the motor into direct contact with R-123. There will be no dielectric breakdown accident even if the However, cycloaliphatic epoxy resin is 15
At 0°C, a discoloration phenomenon occurs for R-123, so in practice it is necessary to keep the temperature of the coil section below 120°C so that the winding temperature does not exceed 120°C.
以下、本発明の一実施例を図面に基づいて説明する。た
だし、この実施例はあくまフも本発明の実施態様の一例
１あつ又、本発明の技術的思想を有する例は本発明に包
含されるもの１ある。Hereinafter, one embodiment of the present invention will be described based on the drawings. However, this embodiment is not only an example of the embodiment of the present invention, but also an example having the technical concept of the present invention that is included in the present invention.
第１図は、本発明に係るヒートポンプの概略構成を示す
図である。同図において、１は遠心式圧縮機、２は凝縮
器、６は減圧装置、４は蒸発器〒ある。これら遠心式圧
縮機１、凝縮器２、減圧装置３及び蒸発器４は冷媒経路
フ接続されて冷媒循環流路を形成している。FIG. 1 is a diagram showing a schematic configuration of a heat pump according to the present invention. In the figure, 1 is a centrifugal compressor, 2 is a condenser, 6 is a pressure reducing device, and 4 is an evaporator. These centrifugal compressor 1, condenser 2, pressure reducing device 3, and evaporator 4 are connected to a refrigerant path to form a refrigerant circulation path.
上記構成のヒー）Ｊンプにおいて、圧縮機１で圧縮され
た冷媒ガスは凝縮器２にて、流路５から送られてくる負
荷流体により冷却及び凝縮され、減圧装ｆ１３にて減圧
された後、蒸発器４に至る。In the above-mentioned heap, the refrigerant gas compressed by the compressor 1 is cooled and condensed by the load fluid sent from the flow path 5 in the condenser 2, and after being depressurized in the decompression device f13. , to the evaporator 4.
蒸発器４フは流路６から送られる熱源流体により、加熱
及び蒸発され、再び遠心式圧縮機１に戻り、ヒートポン
プサイクルな構成する。一方、流路５を流れる負荷流体
は凝縮器２にて加熱され、負荷（図示せず）に供給され
る。The evaporator 4 is heated and evaporated by the heat source fluid sent from the flow path 6, and returns to the centrifugal compressor 1 again, forming a heat pump cycle. On the other hand, the load fluid flowing through the flow path 5 is heated in the condenser 2 and supplied to a load (not shown).
このヒートポンプにおいては冷媒としてＲ−１２６が使
用される。In this heat pump, R-126 is used as a refrigerant.
また、凝縮器で凝縮したＲ−１２３液の一部は、冷媒ボ
゛ンプ７により電動機８に送られ、電動機の巻線９など
を冷却し、冷媒自身は加熱され、蒸発する。そして、再
び凝縮器２へ戻る。Further, a part of the R-123 liquid condensed in the condenser is sent to the electric motor 8 by the refrigerant pump 7, and cools the windings 9 of the electric motor, etc., and the refrigerant itself is heated and evaporated. Then, it returns to the condenser 2 again.
そして、この巻線９の処理フェスには環状脂肪エポキシ
樹脂が用いられている。その巻線表面に温度検出器１０
が取りつげられている。この温度信号は制御装［１１に
送られるが、温度が上昇して１２０℃に違すると、電動
機の巻線温度を低下する処置がとられる。例えば、遠心
式圧縮機１の容量制御装！−１１’あるサクションベー
ンコントロール装置１２を駆動するモータ１３を作動さ
せて圧縮機の負荷、即ち電動機８の負荷を減じる。また
、電動機の巻線温度を低下する処置としては、電動機の
運転を停止させるようにしでもよい。これにより電動機
のコイル部は１２０°Ｃ以下に保たれる。A cyclic aliphatic epoxy resin is used for the processing surface of the winding 9. A temperature sensor 10 is placed on the surface of the winding.
is obsessed. This temperature signal is sent to the control unit [11], and if the temperature rises and exceeds 120° C., action is taken to reduce the temperature of the motor windings. For example, the capacity control system for centrifugal compressor 1! -11' The motor 13 that drives the suction vane control device 12 is operated to reduce the load on the compressor, that is, the load on the electric motor 8. Furthermore, as a measure to lower the winding temperature of the electric motor, the operation of the electric motor may be stopped. As a result, the coil portion of the motor is kept at 120°C or less.
以上の構成により、本発明のヒートポンプは効率よく長
期に亘って運転することができる。With the above configuration, the heat pump of the present invention can be operated efficiently over a long period of time.
第２図において、１４はマグネットワイヤーフあり、１
５は処理ワニス〒あり、１６はマイカテープ層！ある。In Figure 2, 14 has a magnet wire, 1
5 has treated varnish, 16 has mica tape layer! be.
以上のように、本発明は、電動機の処理ワニスが環状脂
肪エポキシ樹脂フあり、使用最高温度は１２０℃に抑え
るように制御され、且つ冷媒としてｌｔ−１２３が用い
られるという、６つの条件を全て満足することにより、
成層圏オゾン層に悪影響を及ぼさない冷媒により冷却さ
れた電動機を用いるヒートポンプを実現したものである
が、この上記の６つの条件を設定するためには長期間に
わたってＲ−１２３を使用し５る条件を追究し、且つ電
動機の処理ワニスの材質についても深く検討した結果に
よるもの↑ある。As described above, the present invention satisfies all six conditions: the treatment varnish for the electric motor is a cyclic aliphatic epoxy resin, the maximum operating temperature is controlled to be kept at 120°C, and LT-123 is used as the refrigerant. By being satisfied,
This is a heat pump that uses an electric motor cooled with a refrigerant that does not have a negative effect on the stratospheric ozone layer, but in order to meet the above six conditions, it is necessary to use R-123 for a long period of time. This is the result of a deep investigation into the material of the varnish used in the treatment of electric motors.
その研究結果によれば、環状脂肪エポキシ樹脂はＲ−１
２！ｌに十分耐えることがわかった。第１表に環状脂肪
とビスフェノールＡ型のエポキシ樹脂についてＩ（−１
２３雰囲気中での外観テスト結果を示す。According to the research results, cycloaliphatic epoxy resin has R-1
2! It was found that it can withstand l. Table 1 shows I(-1
The results of the appearance test in a No. 23 atmosphere are shown below.
第１表 Ｒ−１２３雰囲気中におけるエポキシ樹脂の変
色具合
通常１１−１１用ヒートボンゾの処理ワニス↑あるビス
フェノールＡ型エポキシ樹脂〒は１２０℃、１５０℃と
もＫＲ−１２３雰囲気中受は変色がみられ、耐性がない
。しかし、環状脂肪エポキシ樹脂の場合は１５０℃では
変色がみられたが、１２０℃ｔは十分く耐性があり、変
色がなかった。Table 1 Condition of discoloration of epoxy resin in R-123 atmosphere Normal treatment varnish of Heat Bonzo for 11-11 I have no tolerance. However, in the case of the cycloaliphatic epoxy resin, discoloration was observed at 150°C, but it had sufficient resistance at 120°C and no discoloration occurred.
本発明は電動機巻線の処理ワニスとして環状脂肪エポキ
シ樹脂を用いるものであるが、このと−トポンプにおい
ては電動機の処理ワニス以外の場所にもＲ−１２３に対
する耐性の点からこのエポキシ樹脂を用いてもよい。The present invention uses a cyclic aliphatic epoxy resin as a treatment varnish for motor windings, but in this pump, this epoxy resin is also used in areas other than the treatment varnish for the motor from the viewpoint of resistance to R-123. Good too.
本発明のヒートポンプは、上述のような構成となってい
るので、下記のような優れた効果がある。Since the heat pump of the present invention has the above-described configuration, it has the following excellent effects.
（１）冷媒としてＲ−１２３を用いてヒートポンプを運
転できる。このため万が−それが漏れても、成層圏オゾ
ン層を破壊することがほとんどない。(1) A heat pump can be operated using R-123 as a refrigerant. Therefore, even if it were to leak, it would hardly destroy the stratospheric ozone layer.
（２）電動機コイルが劣化しない。(2) The motor coil does not deteriorate.
第１図は、本発明に係るヒートポンプの概略構成を示す
図１あり、第２図は、電動機巻線の断面図を示す。
１・・・遠心式圧縮機 ２・・・凝縮器６・・・減
圧装置 ４・・・蒸発器７・・・冷媒ポンプ
８・・・電動機９・・・巻線 １４・
・・マグネットワイヤー１５・・・処理ワニス １
６・・・マイカテープ層代理人 弁理士（８１０７）佐
々木 清 隆 。
第 １ 図FIG. 1 shows a schematic configuration of a heat pump according to the present invention, and FIG. 2 shows a cross-sectional view of a motor winding. 1... Centrifugal compressor 2... Condenser 6... Pressure reducing device 4... Evaporator 7... Refrigerant pump
8...Electric motor 9...Winding 14.
...Magnet wire 15...Treatment varnish 1
6... Mica tape layer agent Patent attorney (8107) Kiyotaka Sasaki. Figure 1
Claims (1)
置、蒸発器及びこれらの機器を接続する配管経路などで
構成され、これらの機器内を循環する冷媒と同一の冷媒
で前記電動機が冷却されるようになつているヒートポン
プにおいて、前記冷媒としてジクロロトリフルオロエタ
ンを用い、前記電動機コイル部の温度を直接又は間接的
に検出し、この温度を１２０℃以下とする温度制御装置
を有し、且つ前記電動機巻線の処理ワニスが環状脂肪エ
ポキシ樹脂であることを特徴とするヒートポンプ。It consists of a centrifugal compressor, a condenser, a pressure reducing device, an evaporator, and a piping route connecting these devices, which are driven by an electric motor, and the motor is cooled with the same refrigerant that circulates within these devices. A heat pump that uses dichlorotrifluoroethane as the refrigerant, has a temperature control device that directly or indirectly detects the temperature of the motor coil section and keeps this temperature at 120 ° C. or less, and A heat pump characterized in that the treatment varnish for the motor windings is a cyclic aliphatic epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63102369A JPH0749889B2 (en) | 1988-04-27 | 1988-04-27 | heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63102369A JPH0749889B2 (en) | 1988-04-27 | 1988-04-27 | heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01273954A true JPH01273954A (en) | 1989-11-01 |
| JPH0749889B2 JPH0749889B2 (en) | 1995-05-31 |
Family
ID=14325545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63102369A Expired - Lifetime JPH0749889B2 (en) | 1988-04-27 | 1988-04-27 | heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749889B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6137856A (en) * | 1984-07-31 | 1986-02-22 | Asahi Glass Co Ltd | Working medium mixture |
| JPS6318937A (en) * | 1986-07-09 | 1988-01-26 | Shinko Electric Co Ltd | Refrigerant-proof motor coil and its manufacture |
-
1988
- 1988-04-27 JP JP63102369A patent/JPH0749889B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6137856A (en) * | 1984-07-31 | 1986-02-22 | Asahi Glass Co Ltd | Working medium mixture |
| JPS6318937A (en) * | 1986-07-09 | 1988-01-26 | Shinko Electric Co Ltd | Refrigerant-proof motor coil and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749889B2 (en) | 1995-05-31 |
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