JP5647766B2

JP5647766B2 - Greenhouse air conditioner

Info

Publication number: JP5647766B2
Application number: JP2009047460A
Authority: JP
Inventors: 啓明富田
Original assignee: トミタテクノロジー株式会社
Priority date: 2009-02-28
Filing date: 2009-02-28
Publication date: 2015-01-07
Anticipated expiration: 2029-02-28
Also published as: JP2010200634A

Description

本発明は、パプリカなどの植物を栽培するための温室に関し、特に、温室内の空気の温度や湿度を調整するための温室用空調装置（エアートリートメントユニット）に関するものである。 The present invention relates to a greenhouse for growing plants such as paprika, and more particularly to a greenhouse air conditioner (air treatment unit) for adjusting the temperature and humidity of air in the greenhouse.

パプリカは、例えば、栽培棚を地面から所定高さとなるように設置した温室内で栽培されていて、外気温が低下する冬期には、温室に設けられた暖房装置によって温室内が加温される。外気温が上昇する夏期では、特に温室内の温度調整に細かな注意が払われない場合も多いが、より行き届いた温度制御を行おうとするときや、外気温が比較的高くなる地域では、温室に冷房構造を構成して、夏期の高温状態に対処する場合もある。 For example, paprika is cultivated in a greenhouse in which a cultivation shelf is set at a predetermined height from the ground, and the inside of the greenhouse is heated by a heating device provided in the greenhouse in the winter when the outside air temperature decreases. . In summer when the outside air temperature rises, there are many cases where detailed attention is not paid especially to the temperature adjustment in the greenhouse.However, in the area where the outside air temperature is relatively high or when the outside air temperature is relatively high, In some cases, a cooling structure is configured to cope with high temperature conditions in summer.

温室内の温度を冷暖房制御する構造としては、例えば特許文献１に記載されたものが知られている。特許文献１に記載された温度制御構造は、栽培ベッドの下側にダクトを設け、このダクト内に散水管を通すとともに、ダクトの一端に送風機を取り付けて構成され、この送風機によって温室内の空気をダクト内に吸い込み、ダクトの他端から再び温室内に送り出すといった機能を有している。そして、ダクト内を通過する温室内の空気と、散水管から噴射された地下水とを接触させ、熱交換することにより、ダクトの他端から送り出される空気の温度を適切に制御している。 As a structure for controlling the heating and cooling of the temperature in the greenhouse, for example, the structure described in Patent Document 1 is known. The temperature control structure described in Patent Document 1 is configured such that a duct is provided below the cultivation bed, a sprinkler pipe is passed through the duct, and a blower is attached to one end of the duct. Is sucked into the duct and sent out from the other end of the duct into the greenhouse. And the temperature of the air sent out from the other end of a duct is controlled appropriately by contacting the air in the greenhouse which passes through the inside of a duct, and the groundwater injected from the water spray pipe, and exchanging heat.

また、夏期の高温多湿な状態は、パプリカにうどんこ病や灰色かび病などの病気を発生させるおそれがある。したがって、例えば特許文献２には、温室内の上層部と施肥室との間に、換気扇を設けたダクトを配置し、上層部の空気をダクト内を通過させることにより、再び温室内に戻すようにした空気循環設備で、ダクト内の空気の水分が施肥室で結露し、ダクトから再び温室内に送り出される空気が除湿されるように構成した湿度調整構造が記載されている。 In addition, hot and humid conditions in summer can cause paprika to develop diseases such as powdery mildew and gray mold. Therefore, for example, in Patent Document 2, a duct provided with a ventilation fan is disposed between the upper layer portion in the greenhouse and the fertilization chamber, and the air in the upper layer portion is returned to the greenhouse by passing the air through the duct. A humidity adjustment structure is described in which the moisture in the air in the duct is condensed in the fertilizer chamber and the air sent out from the duct back into the greenhouse is dehumidified in the air circulation facility.

特開２００２−３３０６４０号公報JP 2002-330640 A 特開２００７−０６１０１４号公報JP 2007-061014 A

ところで、特許文献２に記載されたような湿度調整構造では、ダクト内の空気の湿度を十分に低下させようとすれば、ダクトから再び温室内に送り出される空気の温度は、それだけ低下する。しかしながら、温室内の少なくとも大幅な温度の低下は、パプリカなどの栽培植物によい影響を与えないことは明らかである。 By the way, in the humidity adjusting structure as described in Patent Document 2, if the humidity of the air in the duct is sufficiently reduced, the temperature of the air sent out from the duct into the greenhouse again decreases accordingly. However, it is clear that at least a significant temperature drop in the greenhouse does not have a positive effect on cultivated plants such as paprika.

そこで本発明は、温室内の空気の温度制御及び湿度制御を簡単な構造で効果的に行うことのできる温室用空調装置の提供を目的とする。 Therefore, an object of the present invention is to provide a greenhouse air conditioner capable of effectively performing temperature control and humidity control of air in a greenhouse with a simple structure.

この目的を達成するための本発明の温室用空調装置は、植物栽培用の温室内を空調する温室用空調装置であって、空気循環用ファンが設けられた空調用ダクトと、この空調用ダクト内の空気又はこの空調用ダクト内を通過する前記温室内の空気の温度を調整するための又は調整するために用いられる空調流体供給源と、を備え、前記空調用ダクトは、吸気口及び出口を有する空調用入口部と、この空調用入口部の前記出口に接続されたダクト本体と、を有し、前記空気循環用ファンの作動によって、前記温室内の空気を、前記空調用入口部の前記吸気口から吸い込み、前記空調用入口部の前記出口を通過させて前記ダクト本体から前記温室内に戻すように構成され、前記空調用入口部には、この空調用入口部内を通過する前記温室内の空気を冷却するための冷却用熱交換器（例えば間接式熱交換器）が設けられるとともに、この冷却用熱交換器よりも前記出口側で、前記空調用入口部内を通過する前記温室内の空気を暖めるための加温用熱交換器（例えば間接式熱交換器）が設けられていて、前記空調流体供給源は、前記冷却用熱交換器に冷却流体を供給し、かつ、前記加温用熱交換器に加温流体を供給するものである。空調流体供給源は、例えば、冷却用熱交換器への冷却流体の供給及び加温用熱交換器への加温流体の供給を別々に行うことも同時に行うこともできるように構成される。 In order to achieve this object, a greenhouse air conditioner of the present invention is a greenhouse air conditioner that air-conditions a greenhouse for plant cultivation, and includes an air conditioning duct provided with an air circulation fan, and the air conditioning duct. An air conditioning fluid supply source for adjusting or used for adjusting the temperature of the air in the greenhouse or the air in the greenhouse passing through the air conditioning duct, and the air conditioning duct has an inlet and an outlet. An air-conditioning inlet section and a duct body connected to the outlet of the air-conditioning inlet section, and by operating the air circulation fan, the air in the greenhouse is converted into the air-conditioning inlet section. It is configured to suck in from the air inlet, pass through the outlet of the air conditioning inlet and return from the duct body into the greenhouse, and the air conditioning inlet includes the greenhouse passing through the air conditioning inlet. The air inside A cooling heat exchanger (for example, an indirect heat exchanger) is provided, and the air in the greenhouse passing through the air-conditioning inlet is warmer on the outlet side than the cooling heat exchanger. A heating heat exchanger (for example, an indirect heat exchanger) is provided, the air conditioning fluid supply source supplies a cooling fluid to the cooling heat exchanger, and the heating heat exchange The heating fluid is supplied to the vessel. The air conditioning fluid supply source is configured, for example, so that the cooling fluid supply to the cooling heat exchanger and the heating fluid supply to the heating heat exchanger can be performed separately or simultaneously.

冷却用熱交換器（冷房用熱交換器）に、空調流体供給源から冷却流体を供給することにより、空調用入口部に吸い込まれた温室内の空気を、冷却流体との熱交換により冷却することができる。また、加温用熱交換器に、空調流体供給源から加温流体を供給することにより、空調用入口部に吸い込まれた温室内の空気を加温流体との熱交換により加温することができる。ここで、冷却用熱交換器に冷却流体を供給し、加温用熱交換器に加温流体を供給しなければ、空調用入口部に吸い込まれた温室内の空気は冷却されてダクト本体内に流入する。逆に、加温用熱交換器に加温流体を供給し、冷却用熱交換器に冷却流体を供給しなければ、空調用入口部に吸い込まれた温室内の空気は加温されてダクト本体内に流入する。そして、冷却用熱交換器に冷却流体を供給し、かつ、加温用熱交換器に加温流体を供給すれば、空調用入口部に吸い込まれた温室内の空気を冷却し、空気中の水分を結露させて空気の除湿を行い、その後、除湿された空気を加温してダクト本体内に流すことができる。冷却用熱交換器及び加温用熱交換器は、例えば、空調用入口部内に設けられる。 By supplying the cooling fluid from the air conditioning fluid supply source to the cooling heat exchanger (cooling heat exchanger), the air in the greenhouse sucked into the air conditioning inlet is cooled by heat exchange with the cooling fluid. be able to. Further, by supplying the heating fluid to the heating heat exchanger from the air conditioning fluid supply source, the air in the greenhouse sucked into the air conditioning inlet can be heated by heat exchange with the heating fluid. it can. Here, if the cooling fluid is supplied to the cooling heat exchanger and the heating fluid is not supplied to the heating heat exchanger, the air in the greenhouse sucked into the air-conditioning inlet is cooled and the inside of the duct body is cooled. Flow into. Conversely, if the heating fluid is supplied to the heating heat exchanger and the cooling fluid is not supplied to the cooling heat exchanger, the air in the greenhouse sucked into the air conditioning inlet is heated and the duct body Flows in. If the cooling fluid is supplied to the cooling heat exchanger and the heating fluid is supplied to the heating heat exchanger, the air in the greenhouse sucked into the air conditioning inlet is cooled, Moisture is condensed to dehumidify the air, and then the dehumidified air can be heated and flowed into the duct body. The cooling heat exchanger and the heating heat exchanger are provided in, for example, an air conditioning inlet.

循環用ファンが、送風容量を制御できるように構成されていれば、より精緻な温室内の空調が可能となる。また、空調用入口部に結露水排水構造を設けるのが得策である。 If the circulation fan is configured to control the air blowing capacity, more precise air conditioning in the greenhouse becomes possible. It is also a good idea to provide a condensed water drainage structure at the air conditioning entrance.

本発明では、空調用入口部が、一端に吸気口を有する冷却部（冷房部）と、この冷却部の他端に一端が接続され、冷却部と角度を有して延びる加温部と、を有し、冷却用熱交換器が冷却部（例えば冷却部内）に設けられるとともに、加温用熱交換器が加温部（例えば加温部内）に設けられ、ダクト本体が、加温部の他端の出口に接続されるといったように構成できる。このように構成しておけば、冷却用熱交換器に空気が接触して生じた結露水が、加温用熱交換器に接触するといったことを防止することが可能となる。冷却部が垂直下方又はほぼ垂直下方に延び、加温部が、冷却部の下端から水平方向又はほぼ水平方向に延びるように構成できる。ここでは、例えば、冷却部と加温部との境界位置で、空調用入口部に結露水排水構造が設けられる。 In the present invention, the air-conditioning inlet section has a cooling section (cooling section) having an intake port at one end, and a heating section having one end connected to the other end of the cooling section and extending at an angle with the cooling section, A cooling heat exchanger is provided in the cooling unit (for example, in the cooling unit), a heating heat exchanger is provided in the heating unit (for example, in the heating unit), and the duct body is connected to the heating unit. It can be configured such that it is connected to the outlet at the other end. If comprised in this way, it will become possible to prevent that the dew condensation water produced when air contacted the cooling heat exchanger contacts the heating heat exchanger. The cooling unit may be configured to extend vertically downward or substantially vertically downward, and the heating unit may extend horizontally or substantially horizontally from the lower end of the cooling unit. Here, for example, a condensed water drainage structure is provided at the air conditioning inlet at the boundary position between the cooling unit and the heating unit.

本発明の温室用空調装置に用いる空調流体供給源では、種々の熱源を用いることができる。例えば、ヒートポンプを用いれば省力的構成となるし、ボイラを用いれば強力な加熱効果を期待できる。また、環境に配慮してＬＰＧを使用することもできる。 Various heat sources can be used in the air conditioning fluid supply source used in the greenhouse air conditioner of the present invention. For example, if a heat pump is used, it becomes a labor-saving structure, and if a boiler is used, a powerful heating effect can be expected. Also, LPG can be used in consideration of the environment.

以上説明したように、本発明の温室用空調装置では、暖房、冷房及び除湿された空気の加温をダクト内に構成した熱交器により行うことができる。 As described above, in the greenhouse air conditioner of the present invention, heating, cooling, and heating of dehumidified air can be performed by a heat exchanger configured in a duct.

パプリカ栽培用温室の全体的構造を示すための図である。It is a figure for showing the whole structure of the greenhouse for paprika cultivation. 空調用入口部個所の構造を示すための図である。It is a figure for showing the structure of the entrance part for air-conditioning. 温室用空調装置が温室内を暖房している状態を示す図である。It is a figure which shows the state which the greenhouse air conditioner is heating the inside of a greenhouse. 温室用空調装置が温室内を冷房している状態を示す図である。It is a figure which shows the state which the air conditioner for greenhouses is cooling the inside of a greenhouse. 温室用空調装置が温室内を除湿している状態を示す図である。It is a figure which shows the state which the air conditioner for greenhouses dehumidifies the inside of a greenhouse. 温水冷水循環配管又は温水冷水供給流路を地熱ヒートポンプシステム１７及び温水ボイラシステム１９とともに示す図である。It is a figure which shows a warm water cold water circulation piping or a warm water cold water supply flow path with the geothermal heat pump system 17 and the warm water boiler system 19. FIG. 温水冷水循環配管の暖房モードを示す図である。It is a figure which shows the heating mode of warm water cold water circulation piping. 温水冷水循環配管の冷房モードを示す図である。It is a figure which shows the air_conditioning | cooling mode of warm water cold water circulation piping. 温水冷水循環配管の除湿モードを示す図であるIt is a figure which shows the dehumidification mode of warm water cold water circulation piping.

以下、本発明の実施の形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１はパプリカ栽培用温室の全体的構造を示すための図である。 FIG. 1 is a diagram for illustrating the overall structure of a greenhouse for paprika cultivation.

パプリカ栽培用温室１は、透明のガラス又はビニールで構成された側壁３及び天井５を有して構成され、内部に、地面７から所定の高さとなるように吊紐９で吊り下げられた細長い栽培棚１０を、所定の間隔で複数列備えている。それぞれの栽培棚１０上には、長さ方向に沿って所定の間隔で、パプリカ１１が栽培されている。そして、温室１内にはまた、温室用空調装置（エアートリートメントユニット）１３が設けられていて、この温室用空調装置１３は、空調用ダクト１５と、地熱ヒートポンプシステム１７及び温水ボイラシステム１９（空調流体供給源、図６参照）とを備え、空調用ダクト１５は、空調用入口部２１と、この空調用入口部２１に接続されたダクト本体２３とを有している。空調用入口部２１は、上端に吸気口２５を有する縦型の冷房用角ダクト２７（冷房部）の下端に、横型の加温用角ダクト２９（加温部）を一体的に接続してＬ字形に構成され、ダクト本体２３は、加温用角ダクト２９の先端に接続されて、栽培棚１０と直交する方向に延びるメインダクト３１と、このメインダクト３１からそれぞれの栽培棚７の下側を通って延びる複数本の分岐ダクト３３とを有している。それぞれの分岐ダクト３３には、小さな排気孔３５が長さ方向に沿って多数設けられていて、冷房用角ダクト２７の吸気口２５から吸い込まれた温室１内の空気は、空調用入口部２１からダクト本体２３に入り、分岐ダクト３３の排気孔３５から温室１内に放出される。 The greenhouse 1 for paprika cultivation is configured to have a side wall 3 and a ceiling 5 made of transparent glass or vinyl, and is elongated inside by a hanging strap 9 so as to have a predetermined height from the ground 7. A plurality of rows of cultivation shelves 10 are provided at predetermined intervals. On each cultivation shelf 10, the paprika 11 is cultivated at predetermined intervals along the length direction. A greenhouse air conditioner (air treatment unit) 13 is also provided in the greenhouse 1. The greenhouse air conditioner 13 includes an air conditioning duct 15, a geothermal heat pump system 17, and a hot water boiler system 19 (air conditioner). The air conditioning duct 15 includes an air conditioning inlet portion 21 and a duct body 23 connected to the air conditioning inlet portion 21. The air conditioning inlet 21 has a horizontal heating square duct 29 (heating part) integrally connected to the lower end of a vertical cooling corner duct 27 (cooling part) having an air inlet 25 at the upper end. The duct main body 23 is connected to the tip of the heating square duct 29 and extends in a direction orthogonal to the cultivation shelf 10, and from the main duct 31 to the bottom of the cultivation shelf 7. And a plurality of branch ducts 33 extending through the side. Each branch duct 33 is provided with a large number of small exhaust holes 35 along the length direction, and the air in the greenhouse 1 sucked from the air inlet 25 of the cooling corner duct 27 is the air conditioning inlet 21. Enters the duct body 23 and is discharged into the greenhouse 1 from the exhaust hole 35 of the branch duct 33.

図２は空調用入口部２１個所の構造を示すための図である。 FIG. 2 is a view for showing the structure of 21 air conditioning inlets.

空調用入口部２１の冷房用角ダクト２７内には、例えばコイル式又はフィンチューブ式の冷房用熱交換器３７が設けられている。また、空調用入口部２１の加温用角ダクト２９内には、例えばコイル式又はフィンチューブ式の加温用熱交換器３９が設けられ、この加温用熱交換器３９よりも出口４１側で、空気循環ファン４３が配置されている。冷房用角ダクト２７の底部４５には排水孔４７が開けられていて、この排水孔４７は、地面７に設けられた排水溝４９に連なっている。 For example, a coil-type or fin-tube type heat exchanger 37 for cooling is provided in the cooling square duct 27 of the air conditioning inlet 21. In addition, a heating heat exchanger 39 of, for example, a coil type or a fin tube type is provided in the heating rectangular duct 29 of the air conditioning inlet 21, and the outlet 41 side from the heating heat exchanger 39. Therefore, an air circulation fan 43 is arranged. A drain hole 47 is formed in the bottom 45 of the cooling square duct 27, and the drain hole 47 is connected to a drain groove 49 provided in the ground 7.

図３乃至図５は温室用空調装置１３の作動状態を示す図であり、図３は温室用空調装置１３が温室１内を暖房している状態を示す図、図４は温室用空調装置１３が温室１内を冷房している状態を示す図、図５は温室用空調装置１３が温室１内を除湿している状態を示す図である。 3 to 5 are diagrams showing the operating state of the greenhouse air conditioner 13, FIG. 3 is a diagram showing a state in which the greenhouse air conditioner 13 is heating the inside of the greenhouse 1, and FIG. FIG. 5 is a diagram showing a state in which the inside of the greenhouse 1 is cooled, and FIG. 5 is a diagram showing a state in which the greenhouse air conditioner 13 is dehumidifying the inside of the greenhouse 1.

図３に示す温室用空調装置１３の暖房モード（例えば冬期でのモード）では、空調用入口部２１の加温用角ダクト２９内に配置された加温用熱交換器３９又は加温用熱交換器３９の内部に、温室用空調装置１３の温水冷水循環配管又は温水冷水供給流路から、例えばほぼ４５度あるいは４０度以上の温水が供給されていて、空気循環ファン４３の作動により空調用入口部２１内に吸い込まれた温室１内の空気は、加温用熱交換器３９又は加温用熱交換器３９の壁と接触して加温され、ダクト本体２３に送られて温室１内に戻される（太矢印参照）。この暖房モードでは、冷房用熱交換器３７に冷却水は供給されていない。また、図４に示す温室用空調装置１３の冷房モード（例えば夏期でのモード）では、空調用入口部２１の冷房用角ダクト２７内に配置された冷房用熱交換器３７又は冷房用熱交換器３７の内部に、温水冷水循環配管から、例えばほぼ７度あるいは７度乃至１０度程度の冷却水が供給されていて、空気循環ファン４３の作動により空調用入口部２１内に吸い込まれた温室１内の空気は、冷房用熱交換器３７又は冷房用熱交換器３７の壁と接触して冷却され、ダクト本体２３に送られて温室１内に戻される（太矢印参照）。ここで、生じた結露水５１は、冷房用角ダクト２７の底部４５の排水孔４７から排水溝４９に排水される。この冷房モードでは、加温用熱交換器３９に加温水は供給されていない。さらに、図５に示す温室用空調装置１３の除湿モード（例えば夏期でのモード）では、空調用入口部２１の冷房用角ダクト２７内に配置された冷房用熱交換器３７又は冷房用熱交換器３７の内部に、温水冷水循環配管から、例えばほぼ７度あるいは７度乃至１０度程度の冷却水が供給されるとともに、空調用入口部２１の加温用角ダクト２９内に配置された加温用熱交換器３９又は加温用熱交換器３９の内部に、温水冷水循環配管から、所定温度の又は適温の温水が供給されていて、空気循環ファン４３の作動により空調用入口部２１内に吸い込まれた温室１内の空気は、冷房用熱交換器３７又は冷房用熱交換器３７の壁と接触して冷却され、結露した水分５３が取り除かれた後に、加温用熱交換器３９又は加温用熱交換器３９の壁と接触して加温され、ダクト本体２３に送られて温室１内に戻される（太矢印参照）。ここで、生じた結露水５３は、冷房用角ダクト２７の底部４５の排水孔４７から排水溝４９に排水される。 In the heating mode (for example, the winter mode) of the greenhouse air conditioner 13 shown in FIG. 3, the heating heat exchanger 39 or the heating heat disposed in the heating rectangular duct 29 of the air conditioning inlet 21. For example, hot water of approximately 45 degrees or 40 degrees or more is supplied from the hot water / cold water circulation pipe or the hot / cold water supply flow path of the greenhouse air conditioner 13 to the inside of the exchanger 39. The air in the greenhouse 1 sucked into the inlet 21 is heated in contact with the heating heat exchanger 39 or the wall of the heating heat exchanger 39 and is sent to the duct body 23 to be sent into the greenhouse 1. (See thick arrow). In this heating mode, cooling water is not supplied to the cooling heat exchanger 37. In the cooling mode of the greenhouse air conditioner 13 shown in FIG. 4 (for example, the summer mode), the cooling heat exchanger 37 or the cooling heat exchange disposed in the cooling square duct 27 of the air conditioning inlet 21 is used. The greenhouse 37 is supplied with cooling water of about 7 degrees or 7 degrees to 10 degrees, for example, from the hot water / cold water circulation pipe and is sucked into the air conditioning inlet 21 by the operation of the air circulation fan 43. The air in 1 is cooled in contact with the cooling heat exchanger 37 or the wall of the cooling heat exchanger 37, sent to the duct body 23, and returned to the greenhouse 1 (see thick arrows). Here, the generated dew condensation water 51 is drained from the drain hole 47 of the bottom 45 of the cooling square duct 27 to the drain groove 49. In this cooling mode, the heating water is not supplied to the heating heat exchanger 39. Furthermore, in the dehumidifying mode (for example, the summer mode) of the greenhouse air conditioner 13 shown in FIG. 5, the cooling heat exchanger 37 or the cooling heat exchange disposed in the cooling corner duct 27 of the air conditioning inlet 21. Cooling water of approximately 7 degrees or 7 degrees to 10 degrees, for example, is supplied from the hot water / cold water circulation pipe to the inside of the chamber 37, and the heating 37 disposed in the heating angular duct 29 of the air conditioning inlet 21 is provided. Hot water of a predetermined temperature or appropriate temperature is supplied from the hot water / cold water circulation pipe into the heat exchanger 39 or the heating heat exchanger 39, and the air circulation fan 43 is operated to operate the air conditioning inlet 21. The air in the greenhouse 1 sucked in is cooled in contact with the cooling heat exchanger 37 or the wall of the cooling heat exchanger 37, and after the condensed moisture 53 is removed, the heating heat exchanger 39 is heated. Or contact with the wall of the heat exchanger 39 for heating. Is warmed and returned to the greenhouse 1 is sent to the duct body 23 (see a thick arrow). Here, the generated condensed water 53 is drained from the drain hole 47 of the bottom 45 of the cooling square duct 27 to the drain groove 49.

図６は温水冷水循環配管又は温水冷水供給流路を地熱ヒートポンプシステム１７及び温水ボイラシステム１９とともに示す図である。 FIG. 6 is a view showing the hot water / cold water circulation pipe or the hot water / cold water supply passage together with the geothermal heat pump system 17 and the hot water boiler system 19.

温水冷水循環配管は、地熱ヒートポンプシステム１７の第１システムポート５７から冷房用熱交換器３７の入口側に延びる冷却水供給路５９と、冷房用熱交換器３７の出口側から地熱ヒートポンプシステム１７の第２システムポート６１に延びる熱回収水戻り路６３とを有する第１の循環配管又は第1の流路を備えている。第１の循環配管では、冷却水供給路５９に、冷房用熱交換器３７の入口側近くで冷水用ポンプ６５が配置され、また、冷水用ポンプ６５よりも上流側で冷水用３方バルブ６７が設けられている。また、熱回収水戻り路６３からは、循環路６９が分岐し、この循環路６９は冷水用３方バルブ６７に接続されている。したがって、第１の循環配管では、冷水用３方バルブ６７の切り換えにより、冷水用３方バルブ６７から冷房用熱交換器３７及び循環路６９を通って冷水用３方バルブ６７に戻る第１の閉回路を構成することができる。 The hot water / cold water circulation pipe includes a cooling water supply path 59 extending from the first system port 57 of the geothermal heat pump system 17 to the inlet side of the cooling heat exchanger 37, and an outlet side of the cooling heat exchanger 37 of the geothermal heat pump system 17. A first circulation pipe or a first flow path having a heat recovery water return path 63 extending to the second system port 61 is provided. In the first circulation pipe, a chilled water pump 65 is disposed in the cooling water supply passage 59 near the inlet side of the cooling heat exchanger 37, and a chilled water three-way valve 67 is located upstream of the chilled water pump 65. Is provided. A circulation path 69 branches from the heat recovery water return path 63, and the circulation path 69 is connected to a cold water three-way valve 67. Therefore, in the first circulation pipe, the switching of the chilled water three-way valve 67 causes the first chilled water three-way valve 67 to return to the chilled water three-way valve 67 through the cooling heat exchanger 37 and the circulation path 69. A closed circuit can be constructed.

また、温水冷水循環配管は、地熱ヒートポンプシステム１７の第２システムポート６１から加温用熱交換器３９の入口側まで延びる第１の加温水供給路７１と、加温用熱交換器３９の出口側から地熱ヒートポンプシステム１７の第１システムポート５７に延びる第１の熱放出水戻り路７３とを有する第２の循環配管又は第２の流路を備えている。第１の加熱水供給路７１では、上流側から下流側に向かって、第１の温水用３方バルブ７５、第２の温水用３方バルブ７７、そして温水用ポンプ７９が順次配置されている。そして、第１の熱放出水戻り路７３からは、循環路８１が分岐し、この循環路８１は、第１の温水用３方バルブ７５に接続されている。したがって、第２の循環配管は、第１の温水用３方バルブ７５の切り換えにより、第１の温水用３方バルブ７５から、第２の温水用３方バルブ７７、加温用熱交換器３９及び循環路８１を通って第１の温水用３方バルブ７５に戻る第２の閉回路又は第２の循環回路を構成することができる。 The hot water / cold water circulation pipe includes a first heated water supply passage 71 extending from the second system port 61 of the geothermal heat pump system 17 to the inlet side of the heating heat exchanger 39 and an outlet of the heating heat exchanger 39. A second circulation pipe or a second flow path having a first heat release water return path 73 extending from the side to the first system port 57 of the geothermal heat pump system 17 is provided. In the first heated water supply path 71, a first hot water three-way valve 75, a second hot water three-way valve 77, and a hot water pump 79 are sequentially arranged from the upstream side toward the downstream side. . A circulation path 81 branches off from the first heat release water return path 73, and the circulation path 81 is connected to the first hot water three-way valve 75. Therefore, the second circulation pipe is switched from the first warm water three-way valve 75 to the second warm water three-way valve 77 and the heating heat exchanger 39 by switching the first warm water three-way valve 75. In addition, a second closed circuit or a second circulation circuit that returns to the first hot water three-way valve 75 through the circulation path 81 can be configured.

そして、温水冷水循環配管は、地熱ヒートポンプシステム１７とは別の空調流体供給源である温水ボイラシステム１９の高温供給側８３から、第２の温水用３方バルブ７７及び温水用ポンプ７９を通り、加温用熱交換器３９の入口側まで延びる第２の加温水供給路８５と、加温用熱交換器３９の出口側から、第１の温水用３方バルブ７５を通って温水ボイラシステム１９の低温戻り側８７まで延びる第２の熱放出水戻り路８９とを有する第３の循環配管又は第３の流路を備えている。第２の加温水供給路８５は、第２の温水用３方バルブ７７から下流側を、第１の加温水供給路７１と供給し、第２の熱放出水戻り路８９は、加温用熱交換器３９の出口側から循環路８１までを、第１の熱放出水戻り路７３と共有している。そして、第３の循環配管は、第２の温水用３方バルブ７７の切り換えにより、第２の循環配管と同様に、第２の閉回路又は第２の循環回路を構成することができる。 The hot water / cold water circulation pipe passes through the second hot water three-way valve 77 and the hot water pump 79 from the high temperature supply side 83 of the hot water boiler system 19 which is an air conditioning fluid supply source different from the geothermal heat pump system 17, The hot water boiler system 19 passes from the second heated water supply path 85 extending to the inlet side of the heating heat exchanger 39 and the outlet side of the heating heat exchanger 39 through the first three-way valve 75 for hot water. A third circulation pipe or a third flow path having a second heat release water return path 89 extending to the low temperature return side 87 is provided. The second warming water supply path 85 supplies the downstream side from the second warm water three-way valve 77 to the first warming water supply path 71, and the second heat release water return path 89 is for heating. The first heat release water return path 73 is shared from the outlet side of the heat exchanger 39 to the circulation path 81. And the 3rd circulation piping can comprise the 2nd closed circuit or the 2nd circulation circuit similarly to the 2nd circulation piping by switching of the 2nd way valve 77 for warm water.

地熱ヒートポンプシステム１７は、ヒートポンプ９１と、井戸ポンプ９３を有し、井戸水をヒートポンプ９１の第１の熱交換器９５に循環させて、ヒートポンプ９１の冷媒配管９７との間で熱交換を行わせる地熱循環路９９と、地熱ヒートポンプシステム１７の第１システムポート５７及び第２システムポート６１としてのタンクポートを有するバランシングタンク１０１と、作動水循環路１０３と、を備えている。作動水循環路１０３は、バランシングタンク１０１の第３タンクポート１０５から４方バルブ１０７の第１ポート１０９に延びる第１ライン１１１と、バランシングタンク１０１の第４タンクポート１１３から４方バルブ１０７の第２ポート１１５に延びる第２ライン１１７と、４方バルブ１０７の第３ポート１１９からヒートポンプ９１の第２の熱交換器１２１の入口側に延びる、循環ポンプ１２３を有する第３ライン１２５と、第２の熱交換器１２１の出口側から４方バルブ１０７の第４ポート１２７に延びる第４ライン１２９と、を有し、バランシングタンク１０１及び配管内の水を冷媒配管９７と熱交換させる。ヒートポンプ９１の冷媒配管９７には、圧縮器（ポンプ）１３１、４方バルブ１３３及び膨張バルブ１３５が設けられ、加熱運転と冷却運転とを切り換えることができるように構成されている。 The geothermal heat pump system 17 has a heat pump 91 and a well pump 93, and circulates well water to the first heat exchanger 95 of the heat pump 91 to perform heat exchange with the refrigerant pipe 97 of the heat pump 91. A circulation path 99, a balancing tank 101 having tank ports as the first system port 57 and the second system port 61 of the geothermal heat pump system 17, and a working water circulation path 103 are provided. The working water circulation path 103 includes a first line 111 extending from the third tank port 105 of the balancing tank 101 to the first port 109 of the four-way valve 107, and a second line of the four-way valve 107 from the fourth tank port 113 of the balancing tank 101. A second line 117 extending to the port 115; a third line 125 having a circulation pump 123 extending from the third port 119 of the four-way valve 107 to the inlet side of the second heat exchanger 121 of the heat pump 91; A fourth line 129 extending from the outlet side of the heat exchanger 121 to the fourth port 127 of the four-way valve 107, and heat-exchanges the water in the balancing tank 101 and the pipe with the refrigerant pipe 97. The refrigerant pipe 97 of the heat pump 91 is provided with a compressor (pump) 131, a four-way valve 133, and an expansion valve 135 so that the heating operation and the cooling operation can be switched.

温水ボイラシステム１９では、温水ボイラ１３７から温水が高温供給側８３に供給されるとともに、低温戻り側８７から温水ボイラ１３７に、より低い温度水が戻されるように構成されている。なお、高温供給側８３から延び、上流側から、暖房用３方バルブ１３９、暖房用ポンプ１４１を順次有する暖房用供給ライン１４３及び低温戻り側８７に戻って接続される暖房用戻りライン１４５は、栽培棚１０の下側の循環パイプ（図示せず）に温水を循環させて、栽培棚１０付近を暖房するためのものであり、夏期には使用しない場合が多い。また、暖房用戻りライン１４５からは、循環ライン１４７が分岐して暖房用３方バルブ１３９に接続されていて、暖房用３方バルブ１３９の切り換えにより、循環パイプ用の閉回路を構成することができるようになっている。 The hot water boiler system 19 is configured such that hot water is supplied from the hot water boiler 137 to the high temperature supply side 83 and lower temperature water is returned from the low temperature return side 87 to the hot water boiler 137. The heating return line 145 extending from the high temperature supply side 83 and connected upstream from the upstream side to the heating supply line 143 having the heating three-way valve 139 and the heating pump 141 in sequence and the low temperature return side 87 is: The hot water is circulated through a circulation pipe (not shown) on the lower side of the cultivation shelf 10 to heat the vicinity of the cultivation shelf 10 and is often not used in summer. In addition, the circulation line 147 branches from the heating return line 145 and is connected to the heating three-way valve 139. By switching the heating three-way valve 139, a closed circuit for the circulation pipe can be configured. It can be done.

図７乃至図９はそれぞれ、温水冷水循環配管の暖房モード、冷房モード及び除湿モードを示す図である。 7 to 9 are diagrams showing a heating mode, a cooling mode, and a dehumidification mode of the hot water / cold water circulation pipe, respectively.

暖房モードでは、図７に示すように、地熱ヒートポンプシステム１７の４方バルブ１０７の第１ポート１０９と第４ポート１２７とが連結されるとともに、４方バルブ１０７の第２ポート１１５と第３ポート１１９とが連結され、加熱運転状態であるヒートポンプ９１の第２の熱交換器１２１の出口側から、ほぼ４５°に加熱された温水が、循環ポンプ１２３によって供給され、第４ライン１２９及び第１ライン１１１を通り、第３タンクポート１０５からバランシングタンク１０１内に入る（白矢印参照）。一方、バランシングタンク１０１の第４タンクポート１１３からは、例えば４０度程度のより低温の温水が引き出され、第２ライン１１７及び第３ライン１２５を通過して第２の熱交換器１２１の入口側に入る（黒矢印参照）。また、温水冷水循環配管の第２の循環配管を使用して加温用熱交換器３９に温水を供給する。第２の循環配管では、第２の閉回路を構成し、温水用ポンプ７９を作動させて、加温用熱交換器３９に温水を供給するのを基本とし（内側白矢印参照）、第２の閉回路の温度（具体的には加温用熱交換器３９の入口側近くの温度）を監視して、温度が低下したときに、第１の温水用３方バルブ７５を切り換えて、バランシングタンク１０１の第２タンクポート６１から、温水用ポンプ７９を用い、温水を加温用熱交換器３９に供給し（外側黒矢印参照）、その後は、第１の温水用３方バルブ７５を切り換えて、再び第２の閉回路を構成する。なお、第２の閉回路の温度が低下したときに、第２の温水用３方バルブ７７を切り換えて、温水ボイラシステム１９から温水を加温用熱交換器３９に供給してもよい（除湿モード参照）。また、暖房モードでは、暖房用供給ライン１４３と暖房用戻りライン１４５とを用いて循環パイプに温水を循環させる場合があるが、ここでも、循環パイプ用の閉回路を構成し、暖房用ポンプ１４１を作動させて温水を循環させるのを基本とし（内側白矢印参照）、循環パイプ用の閉回路の温度が低下したときに、暖房用３方バルブ１３９を切り換えて、暖房用ポンプ１４１を用い、高温供給側８３から温水を供給する（外側黒矢印参照）。 In the heating mode, as shown in FIG. 7, the first port 109 and the fourth port 127 of the four-way valve 107 of the geothermal heat pump system 17 are connected, and the second port 115 and the third port of the four-way valve 107 are connected. The hot water heated to approximately 45 ° is supplied by the circulation pump 123 from the outlet side of the second heat exchanger 121 of the heat pump 91 that is connected to the 119 and is in the heating operation state, and the fourth line 129 and the first It passes through the line 111 and enters the balancing tank 101 from the third tank port 105 (see white arrow). On the other hand, from the fourth tank port 113 of the balancing tank 101, hot water having a lower temperature of, for example, about 40 degrees is drawn out, passes through the second line 117 and the third line 125, and enters the inlet side of the second heat exchanger 121. Enter (see black arrow). Moreover, warm water is supplied to the heat exchanger 39 for heating using the 2nd circulation piping of warm water cold water circulation piping. In the second circulation pipe, a second closed circuit is configured, and the hot water pump 79 is operated to supply hot water to the heating heat exchanger 39 (see the inner white arrow). The temperature of the closed circuit (specifically, the temperature near the inlet side of the heat exchanger 39 for heating) is monitored, and when the temperature drops, the first hot water three-way valve 75 is switched to perform balancing. Warm water is supplied from the second tank port 61 of the tank 101 to the heat exchanger 39 for warming using the warm water pump 79 (see the outer black arrow), and then the first warm water three-way valve 75 is switched. Thus, the second closed circuit is formed again. When the temperature of the second closed circuit decreases, the second hot water three-way valve 77 is switched to supply hot water from the hot water boiler system 19 to the heating heat exchanger 39 (dehumidification). Mode). In the heating mode, hot water may be circulated through the circulation pipe using the heating supply line 143 and the heating return line 145. However, a closed circuit for the circulation pipe is also formed here, and the heating pump 141 is provided. Is used to circulate hot water (see the white arrow on the inside), and when the temperature of the closed circuit for the circulation pipe decreases, the heating three-way valve 139 is switched and the heating pump 141 is used. Hot water is supplied from the high temperature supply side 83 (see the outer black arrow).

冷房モードでは、図８に示すように、地熱ヒートポンプシステム１７の４方バルブ１０７の第１ポート１０９と第３ポート１１９とが連結されるとともに、４方バルブ１０７の第２ポート１１５と第４ポート１２７とが連結され、冷却運転状態であるヒートポンプ９１の第２の熱交換器１２１の出口側から、ほぼ７°に冷却された冷却水が循環ポンプ１２３によって供給され、第４ライン１２９及び第２ライン１１７を通り、第４タンクポート１１３からバランシングタンク１０１内に入る（白矢印参照）。一方、バランシングタンク１０１の第３タンクポート１０５からは、例えば１２度程度のより暖かい冷水が引き出され、、第１ライン１１１及び第３ライン１２５を通過して第２の熱交換器１２１の入口側に入る（黒矢印参照）。また、温水冷水循環配管の第１の循環配管を使用して冷房用熱交換器３７に冷却水を供給する。第１の循環配管では、第１の閉回路を構成し、冷水用ポンプ６５を作動させて、冷房用熱交換器３７に冷却水を供給するのを基本とし（内側白矢印参照）、第１の閉回路の温度（具体的には冷房用熱交換器３７の入口側近くの温度）を監視して、温度が上昇したときに、冷水用３方バルブ６７を切り換えて、バランシングタンク１０１の第１タンクポート５７から、冷水用ポンプ６５を用い、冷却水を冷房用熱交換器３７に供給し（外側黒矢印参照）、その後は、冷房用３方バルブ６７を切り換えて、再び第１の閉回路を構成する。 In the cooling mode, as shown in FIG. 8, the first port 109 and the third port 119 of the four-way valve 107 of the geothermal heat pump system 17 are connected, and the second port 115 and the fourth port of the four-way valve 107 are connected. 127, the cooling water cooled to approximately 7 ° is supplied from the outlet side of the second heat exchanger 121 of the heat pump 91 which is in the cooling operation state by the circulation pump 123, and the fourth line 129 and the second line 129 It passes through the line 117 and enters the balancing tank 101 from the fourth tank port 113 (see white arrow). On the other hand, from the third tank port 105 of the balancing tank 101, for example, warmer cold water of about 12 degrees is drawn, passes through the first line 111 and the third line 125, and enters the second heat exchanger 121. Enter (see black arrow). Moreover, cooling water is supplied to the heat exchanger 37 for cooling using the 1st circulation piping of warm water cold water circulation piping. In the first circulation pipe, the first closed circuit is configured, and the cooling water pump 65 is operated to supply cooling water to the cooling heat exchanger 37 (see the inner white arrow). The temperature of the closed circuit (specifically, the temperature near the inlet side of the cooling heat exchanger 37) is monitored, and when the temperature rises, the chilled water three-way valve 67 is switched to The cooling water is supplied from one tank port 57 to the cooling heat exchanger 37 using the cooling water pump 65 (see the black arrow on the outside), and then the cooling three-way valve 67 is switched and the first closed again. Configure the circuit.

除湿モードでは、図９に示すように、温水冷水循環配管の第１の循環配管及び冷房モードの地熱ヒートポンプ１７システムを使用して、冷房モードと同様に、冷房用熱交換器３７に冷却水を供給する。また、温水冷水循環配管の第３の循環配管を使用して加温用熱交換器３９に温水を供給する。第３の循環配管では、第２の閉回路を構成し、温水用ポンプ７９を作動させて、加温用熱交換器３９に温水を供給するのを基本とし（内側白矢印参照）、第２の閉回路の温度（具体的には加温用熱交換器３９の入口側近くの温度）を監視して、温度が低下したときに、第２の温水用３方バルブ７７を切り換えて、温水用ポンプ７９を用い、高温供給側８３から温水を加温用熱交換器３９に供給し（外側黒矢印参照）、その後は、第２の温水用３方バルブ７７を切り換えて、再び第２の閉回路を構成する。 In the dehumidifying mode, as shown in FIG. 9, the cooling water is supplied to the cooling heat exchanger 37 by using the first circulating piping of the hot water / cold water circulating piping and the geothermal heat pump 17 system in the cooling mode. Supply. Moreover, warm water is supplied to the heat exchanger 39 for heating using the 3rd circulation piping of warm water cold water circulation piping. In the third circulation pipe, a second closed circuit is configured, and the hot water pump 79 is operated to supply hot water to the heating heat exchanger 39 (see the inner white arrow). The temperature of the closed circuit (specifically, the temperature near the inlet side of the heat exchanger 39 for heating) is monitored, and when the temperature drops, the second hot water three-way valve 77 is switched to The hot water is supplied from the high-temperature supply side 83 to the heat exchanger 39 for heating (see the outer black arrow) using the pump 79, and then the second three-way valve 77 for hot water is switched to turn the second water again. Configure a closed circuit.

以上説明したように、本発明の温室用空調装置は、植物栽培用温室に設置して、キメの細かい温室内の空調を行うことができる。 As described above, the greenhouse air conditioner of the present invention can be installed in a greenhouse for plant cultivation to perform air conditioning in a fine greenhouse.

１パプリカ栽培用温室
１３温室用空調装置
１５空調用ダクト
１７地熱ヒートポンプシステム
１９温水ボイラ
２１空調用入口部
２３ダクト本体
３７冷房用熱交換器
３９加温用熱交換器
４３空気循環ファン DESCRIPTION OF SYMBOLS 1 Greenhouse for paprika cultivation 13 Air conditioner for greenhouse 15 Air conditioning duct 17 Geothermal heat pump system 19 Hot water boiler 21 Air conditioning inlet 23 Duct body 37 Heat exchanger for cooling 39 Heat exchanger for heating 43 Air circulation fan

Claims

A greenhouse air conditioner for air conditioning a greenhouse for plant cultivation,
An air-conditioning duct provided with an air circulation fan, and an air-conditioning fluid supply source used to adjust the temperature of the air in the air-conditioning duct,
The air conditioning duct has an air conditioning inlet having an air inlet and an outlet, and a duct main body connected to the outlet of the air conditioning inlet. The air is sucked from the air inlet of the air conditioning inlet, passed through the outlet of the air conditioning inlet, and returned from the duct body to the greenhouse.
The air conditioning inlet is provided with a cooling heat exchanger for cooling the air in the greenhouse passing through the air conditioning inlet, and at the outlet side of the cooling heat exchanger, A heating heat exchanger for heating the air in the greenhouse passing through the air conditioning inlet is provided,
The air conditioning fluid supply source supplies a cooling fluid to the cooling heat exchanger and supplies a heating fluid to the heating heat exchanger,
The duct body passes through a main duct connected to the outlet of the air conditioning inlet so as to extend in a direction perpendicular to the direction in which the cultivation shelf extends, and the cultivation duct passes through the lower side of the cultivation shelf. A plurality of exhaust ducts extending along the length direction and having a plurality of exhaust holes formed along the length direction, and
The air conditioning inlet portion is provided with a condensed water drainage structure. The condensed water drainage structure includes a drainage hole provided in the air conditioning inlet portion, and a drainage groove provided in the ground, which is connected to the drainage hole. A greenhouse air conditioner characterized by comprising:

The greenhouse air conditioner according to claim 1, wherein the condensed water drainage structure is provided at a boundary position between the cooling unit and the heating unit.

The air conditioning fluid supply source is configured to be able to separately or simultaneously supply a cooling fluid to the cooling heat exchanger and a heating fluid to the heating heat exchanger. The greenhouse air conditioner according to claim 1, wherein

A greenhouse air conditioner for air conditioning a greenhouse for plant cultivation,
An air-conditioning duct provided with an air circulation fan, and an air-conditioning fluid supply source used to adjust the temperature of the air in the air-conditioning duct,
The air conditioning duct has an air conditioning inlet having an air inlet and an outlet, and a duct main body connected to the outlet of the air conditioning inlet. The air is sucked from the air inlet of the air conditioning inlet, passed through the outlet of the air conditioning inlet, and returned from the duct body to the greenhouse.
The air conditioning inlet is provided with a cooling heat exchanger for cooling the air in the greenhouse passing through the air conditioning inlet, and at the outlet side of the cooling heat exchanger, A heating heat exchanger for heating the air in the greenhouse passing through the air conditioning inlet is provided,
The air conditioning fluid supply source supplies a cooling fluid to the cooling heat exchanger and supplies a heating fluid to the heating heat exchanger,
The duct body passes through a main duct connected to the outlet of the air conditioning inlet so as to extend in a direction perpendicular to the direction in which the cultivation shelf extends, and the cultivation duct passes through the lower side of the cultivation shelf. A plurality of exhaust ducts extending along the length direction and having a plurality of exhaust holes formed along the length direction, and
Connected to the air-conditioning fluid supply source are a first flow path for supplying a cooling fluid to the cooling heat exchanger and a second flow path for supplying a heating fluid to the heating heat exchanger. Provided,
The first flow path includes a cooling water supply path extending from the air-conditioning fluid supply source to the inlet side of the cooling heat exchanger, and heat recovery extending from the outlet side of the cooling heat exchanger to the air-conditioning fluid supply source A water return path and a circulation path branched from the heat recovery water return path and connected to the cooling water supply path, and from the air conditioning fluid supply source, the cooling water supply path, and the cooling heat The cooling fluid is supplied to the cooling heat exchanger so as to pass through the exchanger and the heat recovery water return path and return to the air conditioning fluid supply source, and also passes through the cooling heat exchanger from the circulation path. wherein the cooling fluid back into the circulation path is configured to be also supplied to the cooling heat exchanger, characterized and to that greenhouse air conditioner that Te.

A greenhouse air conditioner for air conditioning a greenhouse for plant cultivation,
An air-conditioning duct provided with an air circulation fan, and an air-conditioning fluid supply source used to adjust the temperature of the air in the air-conditioning duct,
The air conditioning duct has an air conditioning inlet having an air inlet and an outlet, and a duct main body connected to the outlet of the air conditioning inlet. The air is sucked from the air inlet of the air conditioning inlet, passed through the outlet of the air conditioning inlet, and returned from the duct body to the greenhouse.
The air conditioning inlet is provided with a cooling heat exchanger for cooling the air in the greenhouse passing through the air conditioning inlet, and at the outlet side of the cooling heat exchanger, A heating heat exchanger for heating the air in the greenhouse passing through the air conditioning inlet is provided,
The air conditioning fluid supply source supplies a cooling fluid to the cooling heat exchanger and supplies a heating fluid to the heating heat exchanger,
The duct body passes through a main duct connected to the outlet of the air conditioning inlet so as to extend in a direction perpendicular to the direction in which the cultivation shelf extends, and the cultivation duct passes through the lower side of the cultivation shelf. A plurality of exhaust ducts extending along the length direction and having a plurality of exhaust holes formed along the length direction, and
The air-conditioning fluid supply source is configured so that the cooling fluid supply to the cooling heat exchanger and the heating fluid supply to the heating heat exchanger can be performed separately or simultaneously,
Connected to the air-conditioning fluid supply source are a first flow path for supplying a cooling fluid to the cooling heat exchanger and a second flow path for supplying a heating fluid to the heating heat exchanger. Provided,
The first flow path includes a cooling water supply path extending from the air-conditioning fluid supply source to the inlet side of the cooling heat exchanger, and heat recovery extending from the outlet side of the cooling heat exchanger to the air-conditioning fluid supply source A water return path and a circulation path branched from the heat recovery water return path and connected to the cooling water supply path, and from the air conditioning fluid supply source, the cooling water supply path, and the cooling heat The cooling fluid is supplied to the cooling heat exchanger so as to pass through the exchanger and the heat recovery water return path and return to the air conditioning fluid supply source, and also passes through the cooling heat exchanger from the circulation path. The greenhouse air conditioner is configured so that a cooling fluid can be supplied to the cooling heat exchanger so as to return to the circulation path.

The second flow path extends from the air conditioning fluid supply source to a heating water supply path extending to the inlet side of the heating heat exchanger, and extends from the outlet side of the heating heat exchanger to the air conditioning fluid supply source. A heat release water return path, and a circulation path branched from the heat release water return path and connected to the warming water supply path. The heating fluid may be supplied from the circulation path to the heating heat exchanger so as to pass through the heating heat exchanger and the heat release water return path and return to the air conditioning fluid supply source. is configured to the warming fluid back to the circulation path through the heat exchanger can be supplied to the heat exchanger for the heating, according to claim 4 or 5, wherein the Greenhouse air conditioner.

The air conditioning inlet has a cooling part having the air inlet at one end, and a heating part having one end connected to the other end of the cooling part and extending at an angle with the cooling part, The cooling heat exchanger is provided in the cooling unit, the heating heat exchanger is provided in the heating unit, and the duct body is connected to the outlet at the other end of the heating unit. The greenhouse air conditioner according to claim 1, 2, 3, 4, 5 or 6.

The greenhouse air conditioner according to claim 7, wherein the cooling unit extends vertically downward or substantially vertically downward, and the heating unit extends horizontally or substantially horizontally from a lower end of the cooling unit. .