JP2617458B2 - heat pump - Google Patents
heat pumpInfo
- Publication number
- JP2617458B2 JP2617458B2 JP27799286A JP27799286A JP2617458B2 JP 2617458 B2 JP2617458 B2 JP 2617458B2 JP 27799286 A JP27799286 A JP 27799286A JP 27799286 A JP27799286 A JP 27799286A JP 2617458 B2 JP2617458 B2 JP 2617458B2
- Authority
- JP
- Japan
- Prior art keywords
- medium
- freezing point
- low freezing
- heat
- spraying
- 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 - Lifetime
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Description
【発明の詳細な説明】 ［発明の属する技術分野］ 本発明は、寒冷地向けのヒートポンプに関する。Description: TECHNICAL FIELD The present invention relates to a heat pump for cold regions.
［従来の技術］ 従来のヒートポンプは、第２図に示すように大気温度
TAより低い温度で蒸発する蒸発温度T4と、室内温度TRよ
り高い温度で凝縮する凝縮温度T1′とを持つようにサイ
クルが組まれており、暖房運転時は図中ｃ→ｄの蒸発部
分で大気の熱エネルギを吸熱している。[Prior Art] A conventional heat pump operates at an atmospheric temperature as shown in FIG.
The evaporation temperature T 4 which evaporates at a temperature lower than T A, the indoor temperature T cycle to have a condensation temperature T 1 'where R condense at higher temperatures have been assembled, the heating operation is drawing c → d Absorbs the heat energy of the atmosphere in the evaporation part.
［発明が解決しようとする課題］ しかしながら、このようなヒートポンプは大気温度TA
が０℃以下になると、室外側熱交換器（蒸発器）の表面
に大気中の水分が氷結して暖房能力が低下するため、寒
冷地では使用できないという問題があった。[Problems to be Solved by the Invention] However, such a heat pump is not suitable for the atmospheric temperature T A.
When the temperature is below 0 ° C., the moisture in the atmosphere freezes on the surface of the outdoor heat exchanger (evaporator), and the heating capacity is reduced.
本発明はこのような問題点に着目してなされたもの
で、その目的とするところは、蒸発器表面への氷結を防
止でき、寒冷地でも十分に使用することができるヒート
ポンプを提供することにある。The present invention has been made in view of such problems, and an object of the present invention is to provide a heat pump that can prevent icing on the evaporator surface and can be sufficiently used even in a cold region. is there.
［課題を解決するための手段］ 上記目的を達成するため、本発明のヒートポンプは、
室外側熱交換器と、この室外側熱交換器を凝固温度が０
℃以下の低凝固点媒体中に浸漬するための媒体貯溜部を
下部に有する媒体吸熱塔と、この媒体吸熱塔内の上部に
配置され前記媒体貯溜部に前記低凝固点媒体を散布する
第１の媒体散布手段と、この第１の媒体散布手段に循環
配管を介して接続され前記媒体貯溜部に貯溜された前記
低凝固点媒体を前記第１の媒体散布手段に供給する循環
ポンプと、前記第１の媒体散布手段の上方に配置され前
記媒体吸熱塔の側壁部に形成された大気吸込み口から大
気を吸込んで前記媒体吸熱塔の上端部に形成された大気
排出口から排出する吸引ファンと、前記循環ポンプから
前記第１の媒体散布手段に供給される前記低凝固点媒体
の一部を加熱する媒体加熱手段と、前記媒体吸熱塔内の
上部に配置され前記媒体加熱手段により加熱された前記
低凝固点媒体を前記媒体貯溜部に散布する第２の媒体散
布手段と、前記第１の媒体散布手段および第２の媒体散
布手段と、前記大気吸込み口との間に、互いに所定間隔
を存して設けられる複数の波板からなり、第１の媒体散
布手段および第２の媒体散布手段から散布される低凝固
点媒体を受けて波板面に沿って流下させ、かつ前記大気
吸込み口から流入する大気を波板面に沿って整流すると
ともに前記低凝固点媒体と熱交換させる整流手段とを具
備したことを特徴とする。[Means for Solving the Problems] To achieve the above object, a heat pump of the present invention
The outdoor heat exchanger and the outdoor heat exchanger having a solidification temperature of 0
A medium heat absorption tower having a medium storage portion at a lower portion for immersing the medium in a low freezing point medium at a temperature of not more than 0 ° C., and a first medium disposed at an upper portion in the medium heat absorption tower and spraying the low freezing point medium on the medium storage portion Spraying means, a circulation pump connected to the first medium spraying means via a circulation pipe and supplying the low freezing point medium stored in the medium storage section to the first medium spraying means, A suction fan that is disposed above the medium dispersing means and sucks air from an air suction port formed on a side wall of the medium heat absorption tower and discharges the air from an air discharge port formed on an upper end of the medium heat absorption tower; A medium heating means for heating a part of the low freezing point medium supplied from the pump to the first medium spraying means; and the low freezing point medium disposed at an upper portion in the medium heat absorbing tower and heated by the medium heating means Before A plurality of second medium dispersing means for dispersing the medium in the medium storage unit, a plurality of medium dispersing means provided at predetermined intervals between the first medium dispersing means and the second medium dispersing means, and the air inlet; A low freezing point medium sprayed from the first medium spraying means and the second medium spraying means is made of a corrugated sheet and flows down along the corrugated sheet surface, and the air flowing from the air inlet is corrugated. And a rectifying means for rectifying the heat along the medium and performing heat exchange with the low freezing point medium.
このような課題を解決するための手段を備えることに
より、室外側熱交換器を流れる冷媒は大気と直接熱交換
するのではなく、低凝固点媒体を介して熱交換する。こ
の低凝固点媒体は、大気の熱エネルギを効率よく吸熱し
て、媒体吸熱塔に貯溜され、ここに配置される室外側熱
交換器と熱交換をなす。したがって、寒冷地で使用して
も、室外側熱交換器表面の氷結を確実に防止して、暖房
能力の大幅向上を図れる。By providing the means for solving such a problem, the refrigerant flowing through the outdoor heat exchanger does not directly exchange heat with the atmosphere, but exchanges heat via the low freezing point medium. The low freezing point medium efficiently absorbs the heat energy of the atmosphere, is stored in the medium heat absorption tower, and exchanges heat with the outdoor heat exchanger disposed therein. Therefore, even when used in cold regions, freezing on the surface of the outdoor heat exchanger is reliably prevented, and the heating capacity can be significantly improved.
［発明の実施の形態］ 以下、図面を参照して本発明の実施の形態について説
明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施の形態を示すヒートポンプの
概略構成図で、図中１は圧縮機、２は室内側熱交換器
（凝縮器）、３は絞り弁、４は室外側熱交換器（蒸発
器）である。この室外側熱交換器４は室外に設置された
媒体吸熱塔５の内部に設けられ、媒体吸熱塔５内に貯溜
された凝固温度が０℃以下の低凝固点媒体（例えば塩化
マグネシウム等）６中に浸漬されている。FIG. 1 is a schematic configuration diagram of a heat pump showing one embodiment of the present invention, in which 1 is a compressor, 2 is an indoor heat exchanger (condenser), 3 is a throttle valve, and 4 is outdoor heat exchange. (Evaporator). The outdoor heat exchanger 4 is provided inside a medium heat absorbing tower 5 installed outside the room, and has a low freezing point medium (such as magnesium chloride) 6 having a freezing temperature of 0 ° C. or less stored in the medium heat absorbing tower 5. Is immersed in.
上記媒体吸熱塔５の底部には循環配管７が接続されて
おり、この循環配管７に設けられた循環ポンプ８で低凝
固点媒体６を媒体吸熱塔５の上部へ汲み上げ、媒体吸熱
塔５内の上部に設けられた第１の媒体散布手段としての
スプレイノズル群９より散布できるようになっている。A circulation pipe 7 is connected to the bottom of the medium heat absorption tower 5, and a low freezing point medium 6 is pumped up to an upper portion of the medium heat absorption tower 5 by a circulation pump 8 provided in the circulation pipe 7. The spray can be sprayed from a spray nozzle group 9 as a first medium spraying means provided at the upper part.
また、循環配管７には分岐管10の一端が接続されてい
る。この分岐管10の他端はヒータ11を内蔵した媒体加熱
手段である媒体加熱装置12の入口部に接続され、媒体加
熱装置12の出口部には加熱された低凝固点媒体６を媒体
吸熱塔５内の上部より噴出する第２の媒体散布手段とし
てのスプレイノズル13が接続されている。One end of a branch pipe 10 is connected to the circulation pipe 7. The other end of the branch pipe 10 is connected to an inlet of a medium heating device 12 which is a medium heating means having a built-in heater 11, and a heated low freezing point medium 6 is supplied to an outlet of the medium heating device 12 by a medium heat absorbing tower 5. A spray nozzle 13 is connected as a second medium spraying means which is ejected from the upper part of the inside.
上記スプレイノズル群９およびスプレイノズル13の下
方には、整流手段としての複数枚の波板14…がスプレイ
ノズル群９の配設方向に沿って所定間隔で設けられてい
る。Below the spray nozzle group 9 and the spray nozzle 13, a plurality of corrugated plates 14 as rectifying means are provided at predetermined intervals along the direction in which the spray nozzle group 9 is arranged.
また、媒体吸熱塔５の側壁には大気吸込み口15が波板
14の下端より下側に形成されており、スプレイノズル群
９の上方に設けられた吸引ファン16で媒体吸熱塔５内に
大気を吸込み、媒体吸熱塔５の上端に設けられた大気排
出口17より排出する構造となっている。An air inlet 15 is provided on the side wall of the medium heat absorption tower 5 by a corrugated plate.
A suction fan 16 provided above the spray nozzle group 9 sucks air into the medium heat absorption tower 5 and is formed below the lower end of the medium heat absorption tower 5. It has a structure to discharge more.
次にこのように構成された本装置の作用について説明
する。Next, the operation of the present device configured as described above will be described.
暖房運転時は実線矢印で示すように冷媒が流れ、圧縮
機１を出た高温高圧の冷媒は室内側熱交換器２で放熱凝
縮し、室内を暖房する。その後、絞り弁３で適当に減圧
され、室外側熱交換器４で吸熱蒸発した後、圧縮機１へ
戻る。このとき、室外側熱交換器４の伝熱管内を流れる
冷媒は媒体吸熱塔５の下部に貯溜された低凝固点媒体６
と熱交換する。During the heating operation, the refrigerant flows as indicated by the solid arrow, and the high-temperature and high-pressure refrigerant exiting the compressor 1 is radiated and condensed in the indoor heat exchanger 2 to heat the room. Thereafter, the pressure is appropriately reduced by the throttle valve 3, the heat is absorbed and evaporated by the outdoor heat exchanger 4, and the process returns to the compressor 1. At this time, the refrigerant flowing in the heat transfer tubes of the outdoor heat exchanger 4 is the low freezing point medium 6 stored in the lower part of the medium heat absorption tower 5.
Heat exchange with
一方、媒体吸熱塔５内の低凝固点媒体６は循環ポンプ
８により循環配管７を通って媒体吸熱塔５の上部へ汲み
上げられ、媒体吸熱塔５内の上部に設けられたスプレイ
ノズル群９より散布され、複数の波板14により形成され
た整流部を通過して媒体吸熱塔５の下部（媒体貯溜部）
に再び貯溜される。On the other hand, the low freezing point medium 6 in the medium heat absorption tower 5 is pumped up to the upper part of the medium heat absorption tower 5 through the circulation pipe 7 by the circulation pump 8, and is sprayed from the spray nozzle group 9 provided in the upper part of the medium heat absorption tower 5. And passes through the rectification section formed by the plurality of corrugated plates 14 and is located below the medium heat absorption tower 5 (medium storage section).
Will be stored again.
このとき、スプレイノズル群９から散布された低凝固
点媒体６は吸引ファン16により媒体吸熱塔５の内部に吸
引された大気と熱交換して大気から熱エネルギを吸熱す
るので、室外側熱交換器４を大気中に配置しなくても暖
房運転を行なうことができ、これにより室外側熱交換器
の伝熱面に大気中に水分が着氷することがないので、暖
房効率の低下を防止できる。At this time, the low freezing point medium 6 sprayed from the spray nozzle group 9 exchanges heat with the air sucked into the medium heat absorbing tower 5 by the suction fan 16 and absorbs heat energy from the air. Heating operation can be performed without disposing the air conditioner 4 in the atmosphere, and thereby, moisture does not icing into the air on the heat transfer surface of the outdoor heat exchanger, so that a decrease in the heating efficiency can be prevented. .
また、循環ポンプ８から吐出された低凝固点媒体６の
一部は分岐管10を経て媒体加熱装置12に供給され、この
媒体加熱装置12で加熱された低凝固点媒体６は第２の媒
体散布手段としてのスプレイノズル13から媒体吸熱塔５
内の下部に散布される。A part of the low freezing point medium 6 discharged from the circulation pump 8 is supplied to the medium heating device 12 via the branch pipe 10, and the low freezing point medium 6 heated by the medium heating device 12 is supplied to the second medium spraying means. From the spray nozzle 13 to the medium endothermic tower 5
Sprayed at the bottom inside.
したがって、本実施例では低凝固点媒体６が大気中の
水分を吸収しても媒体加熱装置12で加熱された低凝固点
媒体６をスプレイノズル13から散布することにより、低
凝固点媒体６に吸収された水分が蒸気となって大気中に
放出されるので、媒体吸熱塔５の下部に貯溜された低凝
固点媒体６の濃度が大気中の水分によって希釈されるこ
とがない。Therefore, in this embodiment, even if the low freezing point medium 6 absorbs moisture in the atmosphere, the low freezing point medium 6 heated by the medium heating device 12 is sprayed from the spray nozzle 13 to be absorbed by the low freezing point medium 6. Since the moisture is released into the atmosphere as vapor, the concentration of the low freezing point medium 6 stored in the lower part of the medium heat absorption tower 5 is not diluted by the moisture in the atmosphere.
これにより、低凝固点媒体６の凝固点が所定温度（０
℃）以下に保たれるので、室外側熱交換器４の熱交換効
率を低下させることなく、安定した暖房運転を行なうこ
とができる。As a result, the freezing point of the low freezing point medium 6 reaches the predetermined temperature (0
° C) or less, so that a stable heating operation can be performed without reducing the heat exchange efficiency of the outdoor heat exchanger 4.
さらに、媒体吸熱塔５の下部とスプレイノズル群９と
の間に複数の波板14からなる整流手段が設けられている
ので、スプレイノズル群９から散布される低凝固点媒体
６と大気吸込み口15から流入する大気との熱交換効率を
高めることができるとともに、低凝固点媒体６に吸収さ
れた水分が蒸気となって大気中に放出されてもスプレイ
ノズル群９から散布される低凝固点媒体６に再吸収され
ることを防止できる。Further, since a rectifying means including a plurality of corrugated plates 14 is provided between the lower portion of the medium heat absorbing tower 5 and the spray nozzle group 9, the low freezing point medium 6 sprayed from the spray nozzle group 9 and the air suction port 15 are provided. The heat exchange efficiency with the air flowing from the low freezing point medium 6 can be increased, and even if the moisture absorbed by the low freezing point medium 6 is released into the atmosphere as steam, the low freezing point medium 6 sprayed from the spray nozzle group 9 It can be prevented from being reabsorbed.
［発明の効果］ 以上説明したように本発明によれば、低凝固点媒体は
媒体吸熱塔内において大気と熱交換して大気から熱エネ
ルギを吸熱するようにしたから、室外側熱交換器を大気
中に配置することなく暖房運転ができ、かつ大気中の水
分が熱交換器表面に氷結することが全くないので、暖房
効率を高く保持できる効果を奏する。[Effects of the Invention] As described above, according to the present invention, the low freezing point medium exchanges heat with the atmosphere in the medium heat absorption tower to absorb heat energy from the atmosphere. The heating operation can be performed without being disposed inside, and the moisture in the atmosphere does not freeze on the surface of the heat exchanger at all, so that the effect of maintaining a high heating efficiency can be obtained.
また、暖房運転をなす冬季期間では、大気中に含まれ
る水分がごく少なく（１重量％程度）、媒体全体を加熱
して水分を蒸発させる必要がない。本発明では、水分を
取り込ませないことを意図し、低凝固点媒体の一部を媒
体加熱手段で加熱し第２の媒体散布手段から媒体貯溜部
に散布するようにして、無駄な構成を省略し、ランニン
グコストの抑制を図れる効果を奏する。Further, in the winter period in which the heating operation is performed, the amount of water contained in the atmosphere is very small (about 1% by weight), and it is not necessary to heat the entire medium to evaporate the water. In the present invention, in order not to take in moisture, a part of the low freezing point medium is heated by the medium heating means and sprayed from the second medium spraying means to the medium storage part, thereby omitting an unnecessary configuration. This has the effect of reducing running costs.
そして、整流手段の採用により、各散布手段から散布
される低凝固点媒体と大気との熱交換効率を高められ、
かつ低凝固点媒体に吸収された水分が蒸気となって大気
中に放出されても、散布される低凝固点媒体に再吸収さ
れることを防止する効果を奏する。And, by adopting the rectifying means, the heat exchange efficiency between the low freezing point medium and the atmosphere sprayed from each spraying means can be increased,
In addition, even if the moisture absorbed by the low freezing point medium is released into the atmosphere as a vapor, it is possible to prevent the low freezing point medium from being re-absorbed by the low freezing point medium.
第１図は本発明の一実施例を示すヒートポンプの概略構
成図、第２図は暖房運転時におけるヒートポンプのＰ−
ｉ線図である。 １……圧縮機、２……室内側熱交換器、３……絞り弁、
４……室外側熱交換器、６……低凝固点媒体、５……媒
体吸熱塔、９……第１の媒体散布手段（スプレイノズル
群）、８……循環ポンプ、16……吸引ファン、12……媒
体加熱手段（装置）、13……第２の媒体散布手段（スプ
レイノズル）、14……整流手段（波板）。FIG. 1 is a schematic configuration diagram of a heat pump showing one embodiment of the present invention, and FIG.
It is an i diagram. 1 ... Compressor, 2 ... Indoor heat exchanger, 3 ... Throttle valve,
4 ... outdoor heat exchanger, 6 ... low freezing point medium, 5 ... medium heat absorption tower, 9 ... first medium spraying means (spray nozzle group), 8 ... circulation pump, 16 ... suction fan, 12 ... medium heating means (apparatus), 13 ... second medium spraying means (spray nozzle), 14 ... rectification means (corrugated plate).
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 吉典 名古屋市中村区岩塚町字高道１番地 三 菱重工業株式会社名古屋研究所内 (56)参考文献 特開 昭48−47158（ＪＰ，Ａ) 特公 昭47−46506（ＪＰ，Ｂ１) ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yoshinori Watanabe Nagoya Research Laboratory, Nagoya City, Nagoya City Tokiko Sho 47-46506 (JP, B1)
Claims (1)
体中に浸漬するための媒体貯溜部を下部に有する媒体吸
熱塔と、 この媒体吸熱塔内の上部に配置され前記媒体貯溜部に前
記低凝固点媒体を散布する第１の媒体散布手段と、 この第１の媒体散布手段に循環配管を介して接続され前
記媒体貯溜部に貯溜された前記低凝固点媒体を前記第１
の媒体散布手段に供給する循環ポンプと、 前記第１の媒体散布手段の上方に配置され前記媒体吸熱
塔の側壁部に形成された大気吸込み口から大気を吸込ん
で前記媒体吸熱塔の上端部に形成された大気排出口から
排出する吸引ファンと、 前記循環ポンプから前記第１の媒体散布手段に供給され
る前記低凝固点媒体の一部を加熱する媒体加熱手段と、 前記媒体吸熱塔内の上部に配置され前記媒体加熱手段に
より加熱された前記低凝固点媒体を前記媒体貯溜部に散
布する第２の媒体散布手段と、 前記第１の媒体散布手段および第２の媒体散布手段と、
前記大気吸込み口との間に、互いに所定間隔を存して設
けられる複数の波板からなり、第１の媒体散布手段およ
び第２の媒体散布手段から散布される低凝固点媒体を受
けて波板面に沿って流下させ、かつ前記大気吸込み口か
ら流入する大気を波板面に沿って整流するとともに前記
低凝固点媒体と熱交換させる整流手段と を具備したことを特徴とするヒートポンプ。1. An outdoor heat exchanger, a medium heat absorption tower having a medium storage portion at a lower portion for immersing the outdoor heat exchanger in a low freezing point medium having a freezing temperature of 0 ° C. or less, A first medium spraying means disposed at an upper portion in the tower for spraying the low freezing point medium to the medium storage, and connected to the first medium spraying means via a circulation pipe and stored in the medium storage; The low freezing point medium is
A circulating pump for supplying to the medium dispersing means; and an air suction port disposed above the first medium dispersing means and suctioning air from an air suction port formed in a side wall portion of the medium heat absorbing tower, to an upper end of the medium heat absorbing tower. A suction fan discharged from the formed air discharge port, a medium heating means for heating a part of the low freezing point medium supplied from the circulation pump to the first medium dispersion means, and an upper part in the medium heat absorption tower A second medium spraying means for spraying the low freezing point medium, which is disposed in the medium heating means and is heated by the medium heating means, to the medium storage portion; the first medium spraying means and the second medium spraying means;
A plurality of corrugated sheets provided at a predetermined distance from each other between the air suction port and the corrugated sheet receiving the low freezing point medium sprayed from the first medium spraying means and the second medium spraying means; A heat pump comprising: rectifying means for flowing down along the surface and rectifying the air flowing from the air suction port along the corrugated plate surface and exchanging heat with the low freezing point medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27799286A JP2617458B2 (en) | 1986-11-21 | 1986-11-21 | heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27799286A JP2617458B2 (en) | 1986-11-21 | 1986-11-21 | heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63131966A JPS63131966A (en) | 1988-06-03 |
| JP2617458B2 true JP2617458B2 (en) | 1997-06-04 |
Family
ID=17591115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27799286A Expired - Lifetime JP2617458B2 (en) | 1986-11-21 | 1986-11-21 | heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2617458B2 (en) |
-
1986
- 1986-11-21 JP JP27799286A patent/JP2617458B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63131966A (en) | 1988-06-03 |
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