JPS60114673A - Geothermal heat source heat pump type air conditioner - Google Patents
Geothermal heat source heat pump type air conditionerInfo
- Publication number
- JPS60114673A JPS60114673A JP22248783A JP22248783A JPS60114673A JP S60114673 A JPS60114673 A JP S60114673A JP 22248783 A JP22248783 A JP 22248783A JP 22248783 A JP22248783 A JP 22248783A JP S60114673 A JPS60114673 A JP S60114673A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- outdoor
- air conditioner
- heat
- type air
- 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.)
- Pending
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、地熱熱源を利用したヒートポンプ式空気調和
機に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat pump type air conditioner that utilizes a geothermal heat source.
従来例の構成とその問題点
従来の一般的なヒートポンプ式空気調和機は、空冷式と
する空気熱源、又は、水冷式とする水熱源により、循環
する冷媒の蒸発（暖房時）、凝縮（冷房時）を行なわせ
、これら蒸発潜熱、凝縮潜熱を、室内側に、圧縮機によ
って運び、冷暖房を行なうものである。ところがこうし
た空冷式、或いは水冷式のヒートポンプ式空気調和機は
、熱源側となる空冷式の室外熱交換器が、室外に設置さ
れる為に、例えば暖房時、外気温度が低下すると、室外
熱交換器での吸熱量が低下するから暖房能力も低下し、
寒冷地力においては暖房能力が充分に発揮されず、実使
用に適さない。又、冷房時、外気温度が著るしく高くな
ると、室外熱交換器での凝縮能力が低下し、冷房能力が
不足すると云うヒートポンプ式空気調和機の宿命的機能
の欠点を有していた。Configuration of conventional examples and their problems Conventional general heat pump air conditioners use either an air-cooled air heat source or a water-cooled water heat source to evaporate (heating) and condense (cool) the circulating refrigerant. The latent heat of vaporization and latent heat of condensation is carried indoors by a compressor to provide heating and cooling. However, in these air-cooled or water-cooled heat pump air conditioners, the air-cooled outdoor heat exchanger that serves as the heat source is installed outdoors. As the amount of heat absorbed by the container decreases, the heating capacity also decreases.
In cold regions, the heating capacity is not fully demonstrated, making it unsuitable for practical use. In addition, when the outside air temperature becomes significantly high during cooling, the condensing capacity of the outdoor heat exchanger decreases, resulting in insufficient cooling capacity, which is a characteristic of heat pump air conditioners.
発明の目的
本発明は、上記従来の欠点を解消するもので、ヒートポ
ンプ式冷凍サイクルの熱源を地熱熱源とし、冷房、及び
、暖房能力の安定したヒートポンプ式空気調和機を得る
ことを目的とする・発明の構成
本発明は、夏期も、冬期も、地中の温度変化が少ないこ
とに着目したもので、熱源吸収用の室外熱交換器を地中
に埋設し、前記室外熱交換器は、銅製等耐蝕性に勝れ、
熱伝導性の良好な材料を使用し、平板状のものに、冷媒
が流通する管を蛇行状に構成したもので、冬期、夏期に
おいて温度変化の少ない地熱を利用して冷暖房を行なう
ものである。Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, and aims to provide a heat pump air conditioner with stable cooling and heating capacity by using a geothermal heat source as the heat source of the heat pump refrigeration cycle. Structure of the Invention The present invention focuses on the fact that underground temperature changes are small both in summer and winter, and an outdoor heat exchanger for absorbing heat sources is buried underground, and the outdoor heat exchanger is made of copper. Excellent corrosion resistance,
It is made of a material with good thermal conductivity and has a flat plate shape with meandering tubes through which refrigerant flows.It performs heating and cooling using geothermal heat, which has little temperature change in winter and summer. .
実施例の説明
本発明による一実施例を第１図〜第３図にもとづいて説
明する。１は室外機で、この室外機１内には圧縮機２、
四方弁３、暖房用キャピラリチューブ４、冷房時に通と
なる逆止弁５、冷暖房キャピラリチューブ６、二方弁７
，８、アキュウムレータ９と主要機器で構成されている
。１０は室内機である。１１は、地中１２に埋設され、
熱源吸収用の室外熱交換器で、この室外熱交換器１１は
、地域によって当然具なるが、地下１．１７７２で６℃
〜７℃の温度（冬期）の地中に埋められる。そして、室
外熱交換器１１はコ字状に折曲した平板状の伝熱板１３
に、冷媒か流通する管１４を蛇行状に取付けて構成し、
且、耐蝕性に勝れ熱伝導性の良い材質の金属板を使用し
ている。即ち、本実施例では、ロールボンド方法による
熱交換器を使用している。１Ｂ、１６ｉｄヘソグー１７
．１８と接続する各室外熱交換器１１の出入口の接続部
である。DESCRIPTION OF THE EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. 1 to 3. 1 is an outdoor unit, and inside this outdoor unit 1 there are a compressor 2,
Four-way valve 3, heating capillary tube 4, check valve 5 that opens during cooling, cooling and heating capillary tube 6, two-way valve 7
, 8, an accumulator 9 and main equipment. 10 is an indoor unit. 11 is buried underground 12,
This outdoor heat exchanger 11 is an outdoor heat exchanger for absorbing heat sources, and the temperature of this outdoor heat exchanger 11 varies depending on the region, but the temperature is 6℃ underground.
Buried underground at a temperature of ~7°C (in winter). The outdoor heat exchanger 11 includes a flat heat transfer plate 13 bent in a U-shape.
A pipe 14 through which the refrigerant flows is attached in a meandering manner,
In addition, a metal plate is used that is highly corrosion resistant and has good thermal conductivity. That is, in this embodiment, a heat exchanger based on the roll bond method is used. 1B, 16id Hesogoo 17
．． This is the connection part of the inlet and outlet of each outdoor heat exchanger 11 connected to 18.
上記構成において、地表に出る部分は室外機１であって
、各室外熱交換器１１０部分は、地中に埋設して、各々
の配管によって、地中の室外熱交換器１１、室内機１０
と接続し、ヒートポンプサイクルを構成する。そこで、
例えば、夏期の冷房運転、は、圧縮機２より吐出された
高温高圧冷媒が、四方弁３を通って、ヘッダー１７より
地中の各室外熱交換器１１を流れる。この時、地中の温
度は、１８℃程度の温度として、冷媒との熱交換による
凝縮は十分性なわれ、変動の大きい外気温度に影響され
ない。そして、凝縮した冷媒は、地上に上ってヘッダー
１８にて合流し逆止弁５、冷暖房キャピラリチューブ６
より室内側に流れ、室内機１０で蒸発し、蒸発潜熱によ
って冷房が行なわれる。In the above configuration, the part exposed to the surface of the ground is the outdoor unit 1, and each outdoor heat exchanger 110 part is buried underground and connected to the underground outdoor heat exchanger 11 and indoor unit 10 by respective piping.
to configure a heat pump cycle. Therefore,
For example, during cooling operation in summer, high-temperature, high-pressure refrigerant discharged from the compressor 2 passes through the four-way valve 3 and flows from the header 17 to each outdoor heat exchanger 11 underground. At this time, the underground temperature is set to about 18° C., so that condensation through heat exchange with the refrigerant is sufficient, and it is not affected by the outside temperature, which fluctuates widely. The condensed refrigerant then rises to the ground and joins the header 18 where it passes through the check valve 5 and the cooling/heating capillary tube 6.
It flows further indoors, evaporates in the indoor unit 10, and is cooled by the latent heat of evaporation.
次に、冬期の暖房運転は、圧縮機より吐出された高温高
圧冷媒が、四方弁３、二方弁８を通って、室内機１０に
流れ、凝縮復熱によって、暖房が行なわれ、凝縮した冷
媒は、二方弁７、冷暖房キャピラリチューブ６、暖房用
キャピラリチューブ４を流れて、ヘッダー１８より地中
の各室外熱交換器１１に流れる。ここで、地中の温度は
、大体６℃〜７℃に保たれているから、この地熱の温度
と、室外熱交換器１１の管１４を流れる冷媒とが熱交換
され蒸発してヘッダー１７にて合流し四方弁３、アキュ
ウムレータ９を介して圧縮機２に戻るのである。尚、本
実施例では、減圧機構としてキャピラリチューブを使用
したが、膨張弁を使用して、室内熱交換器の出入口、及
び、室外熱交換器の出口温度と、吸入管側の圧力とを検
出して、適正減圧機構とするものでもよい。Next, during heating operation in winter, the high-temperature, high-pressure refrigerant discharged from the compressor flows through the four-way valve 3 and the two-way valve 8 to the indoor unit 10, and heating is performed by condensation and recuperation. The refrigerant flows through the two-way valve 7, the cooling/heating capillary tube 6, and the heating capillary tube 4, and then flows from the header 18 to each outdoor heat exchanger 11 underground. Here, since the underground temperature is maintained at approximately 6°C to 7°C, the temperature of this geothermal heat and the refrigerant flowing through the pipes 14 of the outdoor heat exchanger 11 undergo heat exchange, evaporate, and flow into the header 17. They join together and return to the compressor 2 via the four-way valve 3 and the accumulator 9. In this example, a capillary tube was used as the pressure reduction mechanism, but an expansion valve was used to detect the temperature at the inlet and outlet of the indoor heat exchanger, the outlet temperature of the outdoor heat exchanger, and the pressure on the suction pipe side. An appropriate pressure reduction mechanism may also be used.
発明の効果
このように本発明は、ヒートポンプ式空気調和機の室外
熱交換器を地中に埋設し、前記室外熱交換器は、銅製等
耐蝕性に勝れ、熱伝導性の良好な材料によりなる平板と
これに冷媒が流通する管を蛇行状に取付けて、冷房時、
暖房時ともに地熱と熱交換するようにしたものであるか
ら、暖房時、外気温度が極低温となっても、地中におい
て、地熱によって熱交換され、蒸発が効率よく行なわれ
、暖房能力が低下することはない。又、室外に設置され
た場合は、室外熱交換器についた霜をとる除霜運転が必
須条件となるが、本発明では除霜運転は全く必要とせず
、実質的な暖房効果を得ることが出来る。さらに冷房時
は、外気温度の変化に影響されず、高外気温度下でも、
大きな冷房効果を得ることが出来る。更には、室外熱交
換用の送風機や、水冷式のように循環ポンプ等も必要な
く室外機を構成でき、コンパクト化、低コスト化、設置
面積等の面においても有利となるなどの効果を発揮する
ものである。Effects of the Invention As described above, the present invention has an outdoor heat exchanger for a heat pump air conditioner buried underground, and the outdoor heat exchanger is made of a material with excellent corrosion resistance and good thermal conductivity, such as copper. A flat plate and a pipe through which the refrigerant flows are attached in a meandering manner, and during cooling,
Since it is designed to exchange heat with geothermal heat during heating, even when the outside temperature is extremely low during heating, heat is exchanged with geothermal heat underground, and evaporation occurs efficiently, reducing heating capacity. There's nothing to do. In addition, when installed outdoors, a defrosting operation to remove frost on the outdoor heat exchanger is an essential condition, but the present invention does not require a defrosting operation at all and can obtain a substantial heating effect. I can do it. Furthermore, when cooling, it is not affected by changes in outside temperature, even under high outside temperatures.
Great cooling effect can be obtained. Furthermore, the outdoor unit can be configured without the need for a blower for outdoor heat exchange or a circulation pump like water-cooled systems, which is advantageous in terms of compactness, cost reduction, and installation space. It is something to do.
第１図は本発明の一実施例のヒートポンプ式空気調和機
の冷凍サイクル図、第２図は同室外熱交換器の斜視図、
第３図は同室外機と、室外熱交換器の配管斜視図である
。１
１・・・・・・室外機、２・・・・・・圧縮機、１Ｑ・
・・・・・室内機、１１・・・・・・室外熱交換器、１
３・・・・・・伝熱板、１４・・・・・・管。Fig. 1 is a refrigeration cycle diagram of a heat pump type air conditioner according to an embodiment of the present invention, Fig. 2 is a perspective view of the same outdoor heat exchanger,
FIG. 3 is a perspective view of the outdoor unit and the piping of the outdoor heat exchanger. 1 1... Outdoor unit, 2... Compressor, 1Q.
...Indoor unit, 11...Outdoor heat exchanger, 1
3... Heat exchanger plate, 14... Tube.
Claims (1)
外機に接続した室外熱交換器と、室外機に接続した室内
機とを有し、前記熱源吸収用の室外熱交換器を地中に埋
設し、前記熱交換器は、伝熱板と、冷媒が流通し、蛇行
状に構成した管とよりなる地熱熱源ヒートポンプ式空気
調和機。The outdoor heat exchanger for absorbing the heat source has an outdoor unit equipped with a compressor, a pressure reducer, a check valve, etc., an outdoor heat exchanger connected to the outdoor unit, and an indoor unit connected to the outdoor unit. The heat exchanger is a geothermal heat source heat pump type air conditioner, which is buried underground, and the heat exchanger includes a heat exchanger plate and a meandering pipe through which a refrigerant flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22248783A JPS60114673A (en) | 1983-11-25 | 1983-11-25 | Geothermal heat source heat pump type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22248783A JPS60114673A (en) | 1983-11-25 | 1983-11-25 | Geothermal heat source heat pump type air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60114673A true JPS60114673A (en) | 1985-06-21 |
Family
ID=16783196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22248783A Pending JPS60114673A (en) | 1983-11-25 | 1983-11-25 | Geothermal heat source heat pump type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131240A (en) * | 1988-12-23 | 1992-07-21 | Mitsubishi Denki Kabushiki Kaisha | Air conditioning apparatus |
| CZ307622B6 (en) * | 2006-07-31 | 2019-01-23 | Pavel Ĺ imka | Geothermal collector of vertical type with horizontal flow of heat carriers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107893A (en) * | 1979-02-13 | 1980-08-19 | Kuintaru Aibuan | Underground temperature exchanger |
-
1983
- 1983-11-25 JP JP22248783A patent/JPS60114673A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107893A (en) * | 1979-02-13 | 1980-08-19 | Kuintaru Aibuan | Underground temperature exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131240A (en) * | 1988-12-23 | 1992-07-21 | Mitsubishi Denki Kabushiki Kaisha | Air conditioning apparatus |
| CZ307622B6 (en) * | 2006-07-31 | 2019-01-23 | Pavel Ĺ imka | Geothermal collector of vertical type with horizontal flow of heat carriers |
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