JPS6211562B2 - - Google Patents
Info
- Publication number
- JPS6211562B2 JPS6211562B2 JP56209667A JP20966781A JPS6211562B2 JP S6211562 B2 JPS6211562 B2 JP S6211562B2 JP 56209667 A JP56209667 A JP 56209667A JP 20966781 A JP20966781 A JP 20966781A JP S6211562 B2 JPS6211562 B2 JP S6211562B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- greenhouse
- water
- heat exchanger
- pump
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- 238000001816 cooling Methods 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 24
- 239000003673 groundwater Substances 0.000 claims description 23
- 238000005338 heat storage Methods 0.000 claims description 23
- 238000003898 horticulture Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Landscapes
- Greenhouses (AREA)
- Other Air-Conditioning Systems (AREA)
Description
【発明の詳細な説明】
(1) 発明の技術分野
本発明は施設園芸用温室における暖冷房システ
ム、特に地下水を熱源として利用する暖冷房シス
テムに関する。DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a heating and cooling system in a greenhouse for greenhouse horticulture, and particularly to a heating and cooling system that uses groundwater as a heat source.
(2) 技術の背景
温室を利用した施設園芸においては、単に温室
の集熱した太陽熱エネルギーを利用するだけでな
く、作物の生態に合せた積極的な温度管理が計ら
れる。すなわち冬期夜間においては転流促進や作
物の生育保持のために過度の冷え込みを防止する
必要があり、このために、例えば暖房機を運転
し、またはソーラーシステムにより日中太陽熱エ
ネルギーを集熱蓄熱し、夜間これを放出して加温
することが行われる。また下記夜間においては育
苗や果実の着色化または成長の抑止のために比較
的低温の雰囲気をつくる必要があり、このため
に、例えば地下水を汲み上げて温室の屋根に散水
したり、または熱交換機により冷気を換えて温室
を冷房することなどが行われる。(2) Background of the technology In greenhouse horticulture, greenhouse horticulture not only utilizes the solar energy collected by the greenhouse, but also actively manages temperature in accordance with the ecology of the crops. In other words, it is necessary to prevent excessive cooling during winter nights in order to promote translocation and maintain crop growth. For this purpose, for example, heaters may be operated, or solar systems may be used to collect and store solar energy during the day. This is then released at night to warm the air. In addition, at night, it is necessary to create a relatively low-temperature atmosphere in order to prevent the coloring and growth of seedlings and fruits, and for this purpose, for example, it is necessary to pump up groundwater and sprinkle it on the roof of the greenhouse, or use a heat exchanger. It is used to cool greenhouses by exchanging cold air.
しかして暖房機の利用については、その主たる
エネルギー源であるところの石油の高価格化が続
き問題となつており、またソーラーシステムを利
用した加温では天候に左右され、特に日照時間と
の関連で地域的な制約がつきまとう。また地下水
の単純な利用態様ではその使用水量が大であるに
もかかわらず効率的な暖冷房効果が期待できない
問題がある。 However, the use of space heaters continues to be a problem as the price of oil, the main energy source, continues to rise, and heating using solar systems is affected by the weather, especially in relation to sunlight hours. However, there are regional restrictions. In addition, there is a problem in that simple use of groundwater does not provide efficient heating and cooling effects despite the large amount of water used.
かくして、省エネルギーが達成され、かつ効率
の大きい温室の暖冷房システムの開発が望まれて
いる。 Thus, it is desired to develop a greenhouse heating and cooling system that achieves energy savings and is highly efficient.
(3) 従来技術と問題点
従来、例えば温室内に水対空気の対向流型熱交
換機を設置し、一方蓄熱水槽を設けて前記熱交換
機と相互に配管で結び、日中は温室内の高温の空
気の熱量を熱交換して温水として蓄熱水槽に蓄
え、夜間はこの温水を逆流させて熱交換機により
温風に換えて放熱暖房するシステム、また地中に
熱交換用風道を埋設し、日中この風道に暖かい空
気を流し地中に熱を蓄えておき、夜間これを放出
するいわゆる地中熱交換型ハウスが実用化されて
いる。しかし、日中太陽の照射がない場合にはそ
の機能が発揮されず、また特に後者の場合には温
室床面積にほぼ等しい膨大な風道を必要とし、工
事費がかさみ、かつ空気を媒体としているため熱
効率が小さいという欠点がある。(3) Prior art and problems Conventionally, for example, a water-to-air counterflow type heat exchanger is installed in a greenhouse, and a heat storage water tank is installed and connected to the heat exchanger through piping to reduce the high temperature inside the greenhouse during the day. A system that exchanges the heat of the air and stores it as hot water in a heat storage water tank, and at night, this hot water is reversed and converted into hot air using a heat exchanger for radiant heating, and a heat exchange air duct is buried underground. So-called geothermal heat exchange houses have been put into practical use, storing warm air in the ground during the day and releasing it at night. However, if there is no sunlight during the day, the function will not be achieved, and especially in the latter case, a huge wind path is required, which is almost equal to the greenhouse floor area, which increases construction costs, and uses air as a medium. The disadvantage is that the thermal efficiency is low.
また、例えば温室内に水対空気対向流型熱交換
機を設置し、これにより16〜17℃の地下水と温室
内空気との間で熱交換する冬期夜間暖房の場合、
室温を５〜10℃より高い温度に、また夏期冷房の
場合室温を24〜29℃より低い温度に保持する暖冷
房システムが試みられているが、この方法では暖
房においては12℃以下の室温保持には利用できて
も、それ以上の温度条件では困難があり、まして
地下水温度以上の温度保持は不可能である。また
かなりの量の地下水を必要とし、このために立地
に制約を受けるという問題がある。 In addition, for example, in the case of nighttime heating in winter, where a water-to-air counterflow type heat exchanger is installed in a greenhouse and heat is exchanged between groundwater at 16 to 17°C and the air inside the greenhouse,
Attempts have been made to develop heating and cooling systems that maintain the room temperature above 5 to 10 degrees Celsius, or below 24 to 29 degrees Celsius during summer cooling; However, it is difficult to maintain temperatures above the groundwater temperature, and it is impossible to maintain temperatures above the groundwater temperature. Furthermore, it requires a considerable amount of groundwater, which poses the problem of location constraints.
(4) 発明の目的
本発明は上記従来技術の問題点に鑑み、石油等
の燃料を全く使用せず、かつ太陽の照射も必要と
しない、しかも少量の地下水の利用で済む効率の
大きい温室の暖冷房システムを得ることを目的と
する。(4) Purpose of the Invention In view of the problems of the prior art described above, the present invention provides a highly efficient greenhouse that does not use any fuel such as petroleum, does not require solar irradiation, and uses only a small amount of groundwater. The purpose is to obtain a heating and cooling system.
(5) 発明の構成
本発明は温室内に低温度差で運転する高性能の
水対空気対向流型の熱交換機を設置し、また温室
内または外にユニツト化されたピストン流式蓄熱
水槽を連結して設置し該熱交換機と蓄熱水槽の間
を相互に配管で結び、一方、地下水を熱源として
運転するヒートポンプを設けて前記蓄熱水槽と相
互に配管で結んだ装置を用い、冬期暖房に際して
は地下水を低熱源としてヒートポンプを操作し、
温水を蓄熱水槽に蓄え、かかる温水を用いて熱交
換機により温風に換えて温室内を暖房し、夏期冷
房に際しては地下水を冷却熱源としてヒートポン
プを逆方向に操作し、冷水を蓄熱水槽に蓄え、か
かる冷水を用いて熱交換機により冷風に換えて温
室内を冷房することを特徴とする暖冷房システム
を提供する。(5) Structure of the Invention The present invention installs a high-performance water-to-air counterflow type heat exchanger that operates at a low temperature difference in a greenhouse, and also installs a unitized piston flow type heat storage water tank inside or outside the greenhouse. The heat exchanger and the heat storage water tank are installed in a connected manner, and the heat exchanger and the heat storage water tank are connected with each other with piping, while a heat pump that operates using groundwater as a heat source is installed and connected with the heat storage water tank with the piping. Operates a heat pump using groundwater as a low heat source,
Hot water is stored in a heat storage water tank, and the hot water is used to heat the greenhouse by converting it into hot air using a heat exchanger. During summer cooling, the heat pump is operated in the opposite direction using groundwater as a cooling heat source, and cold water is stored in the heat storage tank. The present invention provides a heating and cooling system that uses such cold water to cool the inside of a greenhouse by replacing it with cold air using a heat exchanger.
(6) 発明の実施例
以下本発明の実施例を添付図面に基づいて説明
する。(6) Embodiments of the invention Examples of the invention will be described below with reference to the accompanying drawings.
第１図は本発明にかかる地下水利用システムに
おける各装置の系統を示す図である。同図におい
て１は温室５内に設置された熱交換機、２ａ，２
ｂは配管６で連結されたピストン流式蓄熱水槽、
３はヒートポンプ、４は井戸をそれぞれ示す。そ
して熱交換機１と蓄熱水槽２ａ，２ｂは循環ポン
プ７を介して相互に配管１０ａ，１０ｂで結ば
れ、また蓄熱水槽２ａ，２ｂとヒートポンプ３は
循環ポンプ８を介して相互に配管１１ａ，１１ｂ
で結ばれ、更にヒートポンプ３と井戸４は循環ポ
ンプ９を介して相互に配管１２ａ，１２ｂで結ば
れる。ここで、熱交換機１内には熱交換管（図示
せず）が多数条配設されており、空気取入口１３
から導入された空気は前記熱交換管の間隙部分を
通過する間に循環水１９と熱交換され、暖気また
は冷気が空気排出口１４から温室５内へ放出され
る。この際、空気と循環水１９は対向流で流れる
ようになつており、このため熱交換効率はきわめ
て高く、熱交換機より排出される水温は温室室温
近くまで接近し低温度差でも有効な熱交換がなさ
れるものとなつている。また蓄熱水槽２ａ，２ｂ
では上部給排水口１５ａと下部給排水口１５ｂが
図示の如く設けられ、実際の運転に際しては温水
が上部給排水口１５ａを、冷水が下部給排水口１
５ｂを優先的に還流するようにする（ピストン流
式）。これにより循環水１９の混流は防止され、
蓄熱水槽２ａ，２ｂ内は順次温水または冷水で満
たされることとなる。更にヒートポンプ３はクー
ラー１６と、コンデンサー１７と、コンプレツサ
ー１８とから構成されており、暖房用に供する場
合、すなわち地下水２０を低熱源として使用する
場合にはクーラー１６と井戸４と、コンデンサー
１７と蓄熱水槽２ａ，２ｂとが連結され、一方、
冷房用に供する場合、すなわち地下水２０を冷却
熱源として使用する場合にはクーラー１６と蓄熱
水槽２ａ，２ｂと、コンデンサー１７と井戸４と
が連結される如く各配管１１ａ，１１ｂおよび１
２ａ，１２ｂが切り換えられる。なお、ここで使
用するヒートポンプ３は少流量の熱源水（地下
水）でも十分な性能を有するように設計されたも
のである。 FIG. 1 is a diagram showing the system of each device in the groundwater utilization system according to the present invention. In the figure, 1 is a heat exchanger installed in the greenhouse 5, 2a, 2
b is a piston flow type heat storage water tank connected by piping 6;
3 indicates a heat pump, and 4 indicates a well. The heat exchanger 1 and the heat storage water tanks 2a, 2b are connected to each other by pipes 10a, 10b via the circulation pump 7, and the heat storage water tanks 2a, 2b and the heat pump 3 are connected to each other by the pipes 11a, 11b via the circulation pump 8.
Further, the heat pump 3 and the well 4 are connected to each other via a circulation pump 9 by pipes 12a and 12b. Here, a large number of heat exchange tubes (not shown) are arranged in the heat exchanger 1, and an air intake port 13 is provided.
While passing through the gap between the heat exchange tubes, the air introduced from the heat exchange tube exchanges heat with the circulating water 19, and warm or cold air is discharged into the greenhouse 5 from the air outlet 14. At this time, the air and the circulating water 19 flow in countercurrents, so the heat exchange efficiency is extremely high, and the temperature of the water discharged from the heat exchanger approaches the room temperature of the greenhouse, allowing effective heat exchange even with a low temperature difference. It has become something that is done. Also, heat storage water tanks 2a, 2b
In this case, an upper water supply and drainage port 15a and a lower water supply and drainage port 15b are provided as shown in the figure, and during actual operation, hot water flows through the upper water supply and drainage port 15a, and cold water flows through the lower water supply and drainage port 1.
5b is preferentially refluxed (piston flow type). This prevents mixed flows of circulating water 19,
The heat storage water tanks 2a and 2b are sequentially filled with hot water or cold water. Furthermore, the heat pump 3 is composed of a cooler 16, a condenser 17, and a compressor 18, and when used for heating, that is, when underground water 20 is used as a low heat source, the heat pump 3 is composed of a cooler 16, a well 4, a condenser 17, and a heat storage. The water tanks 2a and 2b are connected, and on the other hand,
When used for cooling, that is, when underground water 20 is used as a cooling heat source, each pipe 11a, 11b, and 1
2a and 12b are switched. Note that the heat pump 3 used here is designed to have sufficient performance even with a small flow rate of heat source water (groundwater).
かかる構成により、冬期暖房に際しては、先ず
ヒートポンプ３を作動し、同時に循環ポンプ８と
９を運転する。これによりヒートポンプ３内の冷
媒はクーラー１６内にて地下水２０の熱を吸収し
て気化し、コンプレツサー１８にて加圧された後
コンデンサー１７へ移行し、コンデンサー１７内
にて循環水１９へ熱を放出して自らは液化し、再
びクーラー１６へ還流する。かかる冷媒の作用を
受けて循環水１９は加温されることとなるが、こ
の際循環水１９は図中実線Ｈ矢印で示す流れ、す
なわち蓄熱水槽２ａの上部給排水口１５ａに導入
され、蓄熱水槽２ｂの下部給排水口１５ｂから排
出されるようになつており、蓄熱水槽２ａ，２ｂ
は順次、温水で満たされることとなる。このよう
にして所定の蓄熱量を得た後、次に熱交換機１を
作動し、同時に循環ポンプ７を運転すると、空気
取入口１３から導入された冷たい空気と循環水１
９との間で熱交換がなされ、加温された空気が空
気排出口１４から放出されることになり、温室５
の暖房が行われる。この際循環水１９は図中、点
線矢印Ｈで示す流れとなり、温かい水が優先的に
熱交換機に流され室温近くまで冷却され冷水とし
還流されるようになつている。 With this configuration, during winter heating, the heat pump 3 is operated first, and the circulation pumps 8 and 9 are operated at the same time. As a result, the refrigerant in the heat pump 3 absorbs the heat of the groundwater 20 in the cooler 16 and vaporizes, is pressurized in the compressor 18 and then moves to the condenser 17, where it transfers heat to the circulating water 19. It is released, liquefies itself, and returns to the cooler 16. The circulating water 19 is heated by the action of the refrigerant, and at this time, the circulating water 19 is introduced into the flow indicated by the solid line H arrow in the figure, that is, into the upper water supply/drainage port 15a of the heat storage water tank 2a, and is introduced into the heat storage water tank 2a. It is designed to be discharged from the lower water supply and drainage port 15b of the heat storage water tank 2a, 2b.
will gradually be filled with warm water. After obtaining a predetermined amount of heat storage in this way, when the heat exchanger 1 is operated and the circulation pump 7 is operated at the same time, the cold air introduced from the air intake port 13 and the circulating water 1
Heat exchange is performed between the greenhouse 5 and the greenhouse 5, and the heated air is released from the air outlet 14.
heating is performed. At this time, the circulating water 19 has a flow indicated by a dotted arrow H in the figure, and warm water is preferentially passed through a heat exchanger, cooled to near room temperature, and recirculated as cold water.
一方、夏期冷房に際しては、ヒートポンプ３を
逆方向に操作、すなわち地下水２０をコンデンサ
ー１７へ、循環水１９をクーラー１６へ導入する
ようにすればよく、これにより冷水が蓄熱水槽２
ａ，２ｂに蓄えられることとなり、かかる冷水を
用いて熱交換機１により温室５の冷房が行われ
る。ただし循環水の流れは図中、実線矢印Ｃおよ
び点線矢印Ｃの如くなり、これにより蓄熱水槽２
ａ，２ｂは順次冷水で満たされ、また熱交換機１
へは冷水が優先的に流され、室温近くまで加熱さ
れ温水として還流される。 On the other hand, for summer cooling, the heat pump 3 can be operated in the opposite direction, that is, the groundwater 20 can be introduced into the condenser 17 and the circulating water 19 can be introduced into the cooler 16.
A, 2b will be stored, and the greenhouse 5 will be cooled by the heat exchanger 1 using such cold water. However, the flow of circulating water is as shown by the solid line arrow C and the dotted line arrow C in the figure, so that the heat storage water tank 2
a, 2b are sequentially filled with cold water, and heat exchanger 1
Cold water is preferentially flowed through the tank, heated to near room temperature, and then refluxed as hot water.
しかして、上記暖冷房システムによる実際の運
転においては夜間、冷暖房の必要な時間（例えば
夜８時から翌朝６時まで）にのみ熱交換機１を運
転し、これに必要なエネルギーをヒートポンプ３
の終日（24時間）運転により供給する運転操作が
用いられる。第２図はかかる運転状態を有効に実
現するための熱交換機とヒートポンプの放熱能力
を示す基本図形である。これによりＡで示される
熱交換機の放熱（冷）能力の、例えば10時間
（hr）積算後の値とＢで示されるヒートポンプの
放熱（冷）能力の24hr積算後の値とが同一の値Ｑ
Mなる如くヒートポンプの能力を設定すれば、す
なわちヒートポンプの放熱（冷）能力を［熱交換
機の放熱（冷）能力×10／24］に設定すれば、１
日を１サイクルとする有効な熱利用が計られるこ
とになる。 However, in actual operation of the heating/cooling system described above, the heat exchanger 1 is operated only at night when heating and cooling is required (for example, from 8:00 pm to 6:00 the next morning), and the energy necessary for this is transferred to the heat pump 3.
The operating operation provided by the all-day (24-hour) operation is used. FIG. 2 is a basic diagram showing the heat dissipation capacity of the heat exchanger and heat pump to effectively realize such operating conditions. As a result, the value of the heat dissipation (cooling) capacity of the heat exchanger indicated by A, for example, after 10 hours (hr) accumulation, and the value of the heat dissipation (cooling) capacity of the heat pump, indicated by B, after 24 hours of accumulation are the same value Q.
If we set the capacity of the heat pump as
Effective heat utilization will be measured with each day as one cycle.
具体的には、理論計算により求めた第３図の如
きヒートポンプのコンデンサー出口水温または熱
交換機入口水温をパラメータとして、必要とする
ヒートポンプの能力が設定される。第３図は放熱
暖房の場合の暖房性能を示したものであり、熱交
換機の放熱能力ＱA（kcal／hr）、ヒートポンプの
必要放熱能力ＱB（kcal／hr）、ヒートポンプのク
ーラー側へ入る熱源（地下水）水量Ｖ（／
min）、循環水のコンデンサー入口水温ＷT（℃）
および温室暖房の設定温度ＡT（℃）間の相互関
係が、35、40、45（℃）で表す循環水の熱交換機
入口水温（℃）をパラメータとして示される。こ
れにより、例えば循環水の熱交換機入口水温を40
℃とし、設定室温を16℃とした場合、熱交換機の
放熱能力は約20500（kcal／hr）であり、このエ
ネルギーを供給するに必要なヒートポンプの放熱
能力は約8500（kcal／hr）と示される。この際、
ヒートポンプのコンデンサー入口水温は23℃であ
り、また熱源水量は10.3（／min）で足りる。 Specifically, the required capacity of the heat pump is set using the condenser outlet water temperature or the heat exchanger inlet water temperature of the heat pump as shown in FIG. 3, which is determined by theoretical calculation, as a parameter. Figure 3 shows the heating performance in the case of radiant heating, including the heat radiating capacity Q A (kcal/hr) of the heat exchanger, the required heat radiating capacity Q B (kcal/hr) of the heat pump, and the heat pump entering the cooler side. Heat source (groundwater) water volume V (/
min), circulating water condenser inlet water temperature W T (℃)
and the greenhouse heating set temperature A T (°C) are shown using circulating water heat exchanger inlet water temperatures (°C) expressed as 35, 40, and 45 (°C) as parameters. As a result, for example, the water temperature at the heat exchanger inlet of the circulating water can be adjusted to 40°C.
℃ and the set room temperature is 16℃, the heat dissipation capacity of the heat exchanger is approximately 20,500 (kcal/hr), and the heat dissipation capacity of the heat pump required to supply this energy is approximately 8,500 (kcal/hr). It can be done. On this occasion,
The water temperature at the condenser inlet of the heat pump is 23℃, and the heat source water amount is sufficient at 10.3 (/min).
冷房の場合には、理論計算より求めた第４図の
如きヒートポンプ（クーラー）のクーラー出口水
温または熱交換機入口水温をパラメータとして必
要とするヒートポンプ（クーラー）の能力が設定
される。第４図は冷房性能を示したものであり、
熱交換機の冷房能力ＱA′（kcal／hr）、ヒートポ
ンプ（クーラー）の必要冷却能力ＱB′（kcal／
hr）、ヒートポンプ（クーラー）のコンデンサー
側へ入る熱源（地下水）水量V′（／min）、循
環水のクーラー入口水温ＷT′（℃）および温室冷
房の設定室温ＡT′（℃）間の相互関係が５、
7.5、10（℃）で表す循環水の熱交換機入口水温
（℃）をパラメータとして示される。これより、
例えば循環水の熱交換機入口水温を7.5℃とし、
設定室温を28℃とした場合、熱交換機の冷却能力
は約17500（kcal／hr）であり、このエネルギー
を供給するに必要なヒートポンプ（クーラー）の
冷却能力は約7300（kcal／hr）となることを示
す。この際ヒートポンプ（クーラー）のクーラー
入口水温は22℃であり、また熱源水量は10.1
（／min）で足りる。 In the case of air conditioning, the capacity of the heat pump (cooler) is set using the cooler outlet water temperature of the heat pump (cooler) or the heat exchanger inlet water temperature as a parameter, as shown in FIG. 4, which is determined by theoretical calculation. Figure 4 shows the cooling performance.
The cooling capacity of the heat exchanger Q A ′ (kcal/hr), the required cooling capacity of the heat pump (cooler) Q B ′ (kcal/hr)
hr), the amount of water from the heat source (groundwater) entering the condenser side of the heat pump (cooler) V' (/min), the circulating water cooler inlet water temperature W T ' (℃), and the set room temperature A T ' (℃) for greenhouse cooling. Interrelationship is 5,
The temperature of the circulating water at the inlet of the heat exchanger (°C) expressed in 7.5 and 10 (°C) is shown as a parameter. Than this,
For example, if the temperature of the circulating water at the inlet of the heat exchanger is 7.5℃,
When the room temperature is set at 28℃, the cooling capacity of the heat exchanger is approximately 17,500 (kcal/hr), and the cooling capacity of the heat pump (cooler) required to supply this energy is approximately 7,300 (kcal/hr). Show that. At this time, the cooler inlet water temperature of the heat pump (cooler) is 22℃, and the heat source water volume is 10.1℃.
(/min) is sufficient.
そして、第３図と第４図に示す線図を各システ
ム毎に用意しておくと、温室の管理が容易かつ正
確になされうるものである。 If the diagrams shown in FIGS. 3 and 4 are prepared for each system, the greenhouse can be managed easily and accurately.
(7) 発明の効果
以上詳細に説明したように本発明の暖冷房シス
テムは少流量の地下水の利用により有効な温室の
暖冷房を行うことを可能にするものであり、しか
も連続安定運転のため性能の高い運転が図られ、
かつ高価なヒートポンプを小さくできるなど全体
の設備容量の小型化が達成される。そして石油等
の燃料を全く使用せず、またソーラーシステムの
如き太陽の入射も必要としないため、その経済的
効果は大きく、かつ立地条件に制約されない等の
利点を有するものであり、更にはソーラーシステ
ムに比し、高水準（冬期暖房の際の高温または夏
期冷房のときの低温）の温度設定と管理が容易か
つ正確に可能となり、このため栽培作物の利用範
囲が広くなる効果を有する。(7) Effects of the Invention As explained in detail above, the heating and cooling system of the present invention makes it possible to effectively heat and cool a greenhouse by using a small amount of groundwater, and moreover, it is capable of continuous stable operation. High-performance operation is achieved,
In addition, the overall equipment capacity can be reduced, such as by making an expensive heat pump smaller. Since it does not use any fuel such as petroleum, and does not require sunlight to enter like solar systems, it has great economic effects and has the advantage of not being restricted by locational conditions. Compared to conventional systems, it is possible to easily and accurately set and manage high-level temperatures (high temperatures for winter heating or low temperatures for summer cooling), and this has the effect of widening the range of crops that can be cultivated.
第１図は本発明にかかる暖冷房システムを示す
系統図、第２図は熱交換機とヒートポンプの放熱
（冷）能力を示す基本図形、第３図と第４図は必
要とするヒートポンプの放熱能力および冷却能力
を求めるためのパラメータを示す図である。
１……熱交換機、２ａ，２ｂ……蓄熱水槽、３
……ヒートポンプ、４……井戸、５……温室、
６，１０ａ，１０ｂ，１１ａ，１１ｂ，１２ａ，
１２ｂ……配管、７，８，９……循環ポンプ、１
３……空気取入口、１４……空気排出口、１５
ａ，１５ｂ……給排水口、１６……クーラー、１
７……コンデンサー、１８……コンプレツサー、
１９……循環水、２０……地下水。
Figure 1 is a system diagram showing the heating and cooling system according to the present invention, Figure 2 is a basic diagram showing the heat radiation (cooling) capacity of the heat exchanger and heat pump, and Figures 3 and 4 are the required heat radiation capacity of the heat pump. and FIG. 6 is a diagram showing parameters for determining cooling capacity. 1... Heat exchanger, 2a, 2b... Heat storage water tank, 3
...Heat pump, 4...Well, 5...Greenhouse,
6, 10a, 10b, 11a, 11b, 12a,
12b... Piping, 7, 8, 9... Circulation pump, 1
3... Air intake port, 14... Air outlet port, 15
a, 15b... Water supply and drainage port, 16... Cooler, 1
7... Capacitor, 18... Compressor,
19...Circulating water, 20...Groundwater.
Claims (1)
し、温室内または外にピストン流式連結型蓄熱水
槽とヒートポンプを設置し、更に地下水を取水す
る井戸を設け、前記熱交換機と蓄熱水槽の間を循
環ポンプを介して相互に配管で連結し、前記蓄熱
水槽とヒートポンプの間を循環ポンプを介して相
互に配管で連結し、且つ前記ヒートポンプと井戸
の間をポンプを介して配管で連結した地下水を利
用した温室の暖冷房システムにして、冬期暖房に
際しては地下水を低熱源としてヒートポンプを操
作し、温水を蓄熱水槽に蓄え、かかる温水を用い
て熱交換機により温風に換えて温室内を暖房し、
夏期冷房に際しては地下水を冷却熱源としてヒー
トポンプを逆方向に操作し、冷水を蓄熱水槽に蓄
え、かかる冷水を用いて熱交換機により冷風に換
えて温室内を冷房することを特徴とする施設園芸
用温室における暖冷房システム。1. Install a water-to-air counterflow type heat exchanger inside the greenhouse, install a piston-flow connected type thermal storage water tank and a heat pump inside or outside the greenhouse, and install a well to take in ground water, and connect the heat exchanger and the thermal storage tank. The heat storage tank and the heat pump were connected to each other by piping through a circulation pump, and the heat pump and the well were connected to each other by piping through a pump. The heating and cooling system for the greenhouse uses groundwater, and during winter heating, a heat pump is operated using the groundwater as a low heat source, hot water is stored in a heat storage tank, and the hot water is used to heat the greenhouse by converting it into warm air using a heat exchanger. death,
A greenhouse for greenhouse horticulture, characterized in that during summer cooling, a heat pump is operated in the opposite direction using groundwater as a cooling heat source, cold water is stored in a heat storage tank, and the cold water is used to convert into cold air using a heat exchanger to cool the inside of the greenhouse. heating and cooling systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56209667A JPS58134918A (en) | 1981-12-28 | 1981-12-28 | Heating and cooling system in horticulture greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56209667A JPS58134918A (en) | 1981-12-28 | 1981-12-28 | Heating and cooling system in horticulture greenhouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58134918A JPS58134918A (en) | 1983-08-11 |
| JPS6211562B2 true JPS6211562B2 (en) | 1987-03-13 |
Family
ID=16576606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56209667A Granted JPS58134918A (en) | 1981-12-28 | 1981-12-28 | Heating and cooling system in horticulture greenhouse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58134918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06315651A (en) * | 1990-06-12 | 1994-11-15 | Samsung Electronics Co Ltd | Electric dust collector |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010017093A (en) * | 2008-07-08 | 2010-01-28 | Fulta Electric Machinery Co Ltd | Air conditioner or air conditioning method, for greenhouse |
| CN101881495B (en) * | 2010-07-26 | 2013-04-03 | 西安工程大学 | Cold accumulation type radiant air-conditioning system based on evaporative cooling |
| JP6493247B2 (en) * | 2016-02-25 | 2019-04-03 | 株式会社デンソー | CO2 supply system |
-
1981
- 1981-12-28 JP JP56209667A patent/JPS58134918A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06315651A (en) * | 1990-06-12 | 1994-11-15 | Samsung Electronics Co Ltd | Electric dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58134918A (en) | 1983-08-11 |
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