JPH02156830A - Heating and ventilation in green house for horticulture - Google Patents
Heating and ventilation in green house for horticultureInfo
- Publication number
- JPH02156830A JPH02156830A JP63309857A JP30985788A JPH02156830A JP H02156830 A JPH02156830 A JP H02156830A JP 63309857 A JP63309857 A JP 63309857A JP 30985788 A JP30985788 A JP 30985788A JP H02156830 A JPH02156830 A JP H02156830A
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- circuit
- heating
- output
- greenhouse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 77
- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 238000003898 horticulture Methods 0.000 title claims description 10
- 230000003111 delayed effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 4
- 229920002554 vinyl polymer Polymers 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 12
- 241001672694 Citrus reticulata Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000007704 transition 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
Landscapes
- Greenhouses (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
施設園芸用温室における暖房・換気方法、特に温風暖房
機と換気扇とが併設された施設園芸用温室における温度
調節方法に関し、
ビニールハウス内に温風暖房機と換気扇とが併設され、
暖房と換気とが同時にまたは交換的に運転する場合に、
換気扇の使用によりビニールハウス内の気圧が低下した
場合に、煙突→燃焼室→バーナ→ビニールハウス内への
空気の逆流を防止する方法を提供することを目的とし、
施設園芸用温室の暖房と換気をそれぞれ温風暖房機と換
気扇とを併用して行なうにおいて、１本の温度センサに
暖房回路と換気回路とを接続し、暖房回路を直接暖房出
力回路を経て温風暖房機に接続し、換気回路をＡＮＤゲ
ート、ＯＮディレィタイマ、換気出力回路を経て換気扇
に接続し、暖房回路の出力を論理を反転してＡＮＤゲー
トに接続し、換気出力回路は、暖房回路が叶Ｆ、ローで
換気回路がＯＮ、ハイのときにＡＮＤゲートからハイが
出力され、ＡＮＤゲートからハイが出力されると該出力
はＯＮディレィタイマが設定した時間遅れて出力される
ことを特徴とする施設園芸用温室における暖房・換気方
法を含み構成する。[Detailed Description of the Invention] [Summary] The present invention relates to a heating and ventilation method in a greenhouse for greenhouse horticulture, particularly a temperature control method in a greenhouse for greenhouse horticulture that is equipped with a hot air heater and a ventilation fan. and a ventilation fan are installed.
When heating and ventilation operate simultaneously or interchangeably,
The purpose of this project is to provide a method to prevent the backflow of air from the chimney to the combustion chamber to the burner to the greenhouse when the air pressure inside the greenhouse decreases due to the use of a ventilation fan. When using both a hot air heater and a ventilation fan, the heating circuit and ventilation circuit are connected to one temperature sensor, and the heating circuit is directly connected to the hot air heater via the heating output circuit. Connect the circuit to the ventilation fan through the AND gate, ON delay timer, and ventilation output circuit, and invert the logic of the output of the heating circuit and connect it to the AND gate. Heating in a greenhouse for greenhouse horticulture, characterized in that when is ON and high, a high signal is output from an AND gate, and when a high signal is output from the AND gate, the output is delayed by a time set by an ON delay timer.・Include and configure ventilation methods.
本発明は施設園芸用温室における暖房・換気方法、特に
温風暖房機と換気扇とが併設された施設園芸用温室にお
ける温度調節方法に関する。The present invention relates to a method for heating and ventilation in a greenhouse for greenhouse horticulture, and particularly to a method for controlling temperature in a greenhouse for greenhouse horticulture that is equipped with a warm air heater and a ventilation fan.
施設園芸用温室（以下にはビニールハウスと略称する）
の暖房用には油（重油、灯油）焚温風暖房機が用いられ
る。第３図は本出願人の開発にか＼る油焚温風暖房機３
０の図で、その（ａ）は正面断面図、［有］）は側断面
図で、図中、３１はバーナ、３２は制御盤、３３は燃焼
室、３４は火炎、３５は煙管、３６はスクリュウプレー
ト、３７は理学、３８は理学蓋、３９は煙道エルボ、４
０は煙突、４１は送風機、４２は空気吹込口、４３は温
風吹出口である。Greenhouse for greenhouse horticulture (hereinafter abbreviated as vinyl house)
Oil (heavy oil, kerosene)-fired warm air heaters are used for heating. Figure 3 shows an oil-fired hot air heater 3 developed by the applicant.
0, in which (a) is a front sectional view, and ([yes]) is a side sectional view, in the figure, 31 is a burner, 32 is a control panel, 33 is a combustion chamber, 34 is a flame, 35 is a smoke pipe, 36 is the screw plate, 37 is the science, 38 is the science cover, 39 is the flue elbow, 4
0 is a chimney, 41 is a blower, 42 is an air inlet, and 43 is a hot air outlet.
使用において、バーナ３１によって発生された火炎３４
によって燃焼室３３が加熱され、燃焼室３３内の熱風は
煙管３５、理学３７、煙突４０を経て矢印１方向に排気
される。空気吹込口４２からは送風機４１によって空気
が矢印■で示すように取込まれ、この空気は煙管３５の
まわりと燃焼室３３のまわりを流れ、熱交換によって温
風となり、温風吹出口４３から矢印■方向に吹出されて
ビニールハウス内に放出されビニールハウスの暖房を行
なう。In use, the flame 34 generated by the burner 31
The combustion chamber 33 is heated, and the hot air in the combustion chamber 33 is exhausted in the direction of the arrow 1 through the smoke pipe 35, the pipe 37, and the chimney 40. Air is taken in from the air inlet 42 by the blower 41 as shown by the arrow ■, this air flows around the smoke pipe 35 and around the combustion chamber 33, becomes warm air through heat exchange, and is drawn in from the hot air outlet 43 as shown by the arrow ■It is blown out in the direction and released into the greenhouse to heat the greenhouse.
ところで、ビニールハウス内で上記した温風暖房機が換
気扇と併行的に使用されることがある。By the way, the hot air heater described above is sometimes used in conjunction with a ventilation fan inside a greenhouse.
例えばミカンの栽培において、ミカンをビニールハウス
内で栽培して通常の出荷時期よりも早く出荷しようとす
るとき、ミカン栽培の適温の範囲は２５″Ｃ〜２８℃の
きわめて狭い範囲にあり、冬期に山中のビニールハウス
においては、ビニールハウスの暖房とビニールハウス内
の室温とを降下させる換気を繰り返して行なうことが行
なわれる。そのためには、第２図に示されるように、ビ
ニールハウス５１内に温風暖房機３０を配置し、換気扇
５２をビニールハウスの一方側に配置する。なお、符号
５３は空気取入口である。温風暖房機３ｏの運転時には
、ビニールハウス内の空気をバーナ３１から取り込み煙
突４０から排気ガスを矢印１方向に排出し、換気扇５２
は矢印■に示す如く換気の流れをビニールハウス外に出
す。For example, in the cultivation of mandarin oranges, when growing mandarin oranges in a plastic greenhouse and trying to ship them earlier than the normal shipping time, the optimum temperature range for mandarin orange cultivation is an extremely narrow range of 25"C to 28C, and in winter In greenhouses in the mountains, heating of the greenhouse and ventilation to lower the room temperature inside the greenhouse are repeated.To do this, as shown in Fig. 2, heating is carried out inside the greenhouse 51. A wind heater 30 is arranged, and a ventilation fan 52 is arranged on one side of the greenhouse. Reference numeral 53 is an air intake port. When the hot air heater 3o is in operation, the air inside the greenhouse is taken in from the burner 31. Exhaust gas is discharged from the chimney 40 in the direction of the arrow 1, and the ventilation fan 52
Direct the ventilation flow to the outside of the greenhouse as shown by the arrow ■.
第２図に示されるように、ビニールハウス５１内に温風
暖房機３０と換気扇５２とが併設されていて、それぞれ
の設定温度が、温風暖房機は２５°Ｃ５換気扇は２８°
Ｃというように接近している場合、短時間幅で交互運転
をなし、または同時運転が行われることがある。As shown in FIG. 2, a hot air heater 30 and a ventilation fan 52 are installed in the greenhouse 51, and the set temperature of each is 25°C for the hot air heater and 28°C for the ventilation fan.
When the vehicles are close together as shown in C, they may operate alternately or simultaneously for short periods of time.
温風暖房機は燃焼空気をバーナ経由でビニールハウス内
から取り込み、他方換気扇はビニールハウス内の空気を
ビニールハウスの外に吐出するのであるが、温風暖房機
と換気扇が取り込み吐出する空気量の比は２０００〜３
０００倍程度と換気扇の吐出する空気量が圧倒的に大で
ある。すなわち、換気扇がビニールハウス外へ吐出する
空気量がきわめて大であるので、温風暖房機と換気扇と
が同時運転をなすときは、温風暖房機には燃焼空気が不
足し燃焼不良が発生する。それに加えて、ビニールハウ
ス内の気圧が換気扇による空気の吐出によってバーナが
取り込んだ空気を煙突４０に向けて押し出す力よりも小
になると、空気が煙突４０から矢印■に示すように燃焼
室３３に向は逆流し、そこで加熱され、熱風が矢印■に
示すようにバーナ３１からビニールハウス内に逆流する
。このとき、熱風によってバーナ３１が損傷し、さらに
は燃焼室３３内で形成されだす−がビニールハウス内に
充満し、栽培したミカンがすべです−にまみれて商品と
して出荷することができなくなるという経済的な損失が
ある。A hot air heater takes in combustion air from inside the greenhouse via a burner, while a ventilation fan discharges the air inside the greenhouse to the outside of the greenhouse. The ratio is 2000-3
The amount of air discharged by the ventilation fan is overwhelmingly large, approximately 1,000 times larger. In other words, since the amount of air discharged by the ventilation fan to the outside of the greenhouse is extremely large, when the hot air heater and the ventilation fan are operated at the same time, the hot air heater lacks combustion air, resulting in poor combustion. . In addition, when the air pressure inside the greenhouse becomes smaller than the force that pushes the air taken in by the burner toward the chimney 40 due to the air discharge by the ventilation fan, air flows from the chimney 40 into the combustion chamber 33 as shown by the arrow ■. The hot air is heated there and flows back into the greenhouse from the burner 31 as shown by the arrow (■). At this time, the burner 31 is damaged by the hot air, and the gas that begins to form in the combustion chamber 33 fills the greenhouse, making it impossible for the cultivated mandarin oranges to be shipped as products because they are covered in gas. There is a loss.
か＼る課題を解決すべく、既存の空気取入口５３に加え
て大型の空気取入口を設けることが提案されたが、それ
はスペースをとりコストも高くなるので実際的でないこ
とが判明した。In order to solve this problem, it was proposed to provide a large air intake in addition to the existing air intake 53, but this was found to be impractical as it would take up space and increase costs.
そこで本発明は、ビニールハウ３内に温風暖房機と換気
扇とが併設され、暖房と換気とが同時にまたは交換的に
運転する場合に、換気扇の使用によりビニールハウス内
の気圧が低下した場合に、煙突→燃焼室→バーナ→ビニ
ールハウス内への空気の逆流を防止する方法を提供する
ことを目的とする。Therefore, the present invention is designed to prevent air pressure inside the greenhouse from decreasing due to the use of the ventilation fan when a warm air heater and a ventilation fan are installed together in the vinyl greenhouse 3 and heating and ventilation are operated simultaneously or interchangeably. The purpose of the present invention is to provide a method for preventing backflow of air from the chimney to the combustion chamber to the burner to the greenhouse.
上記課題は、施設園芸用温室の暖房と換気をそれぞれ温
風暖房機と換気扇とを併用して行なうにおいて、１本の
温度センサに暖房回路と換気回路とを接続し、暖房回路
を直接暖房出力回路を経て温風暖房機に接続し、換気回
路をＡＮＤゲート、ＯＮディレィタイマ、換気出力回路
を経て換気扇に接続し、暖房回路の出力を論理を反転し
てＡＮＤゲートに接続し、換気出力回路は、暖房回路が
ＯＦＦ、ローで換気回路がＯＮ、ハイのときにＡＮＤゲ
ートからハイが出力され、ＡＮＤゲートからハイが出力
されると該出力はＯＮディレィタイマが設定した時間遅
れて出力されることを特徴とする施設園芸用温室におけ
る暖房・換気方法によって解決される。The above problem was solved by connecting the heating circuit and the ventilation circuit to one temperature sensor, and directly outputting the heating output from the heating circuit when heating and ventilating a greenhouse for greenhouse horticulture using a hot air heater and a ventilation fan, respectively. Connect the ventilation circuit to the hot air heater through the circuit, connect the ventilation circuit to the ventilation fan through the AND gate, ON delay timer, and ventilation output circuit, invert the logic of the output of the heating circuit and connect it to the AND gate, and connect the ventilation circuit to the ventilation output circuit. When the heating circuit is OFF, the ventilation circuit is ON at low, and high, a high is output from the AND gate, and when a high is output from the AND gate, the output is delayed by the time set by the ON delay timer. This problem is solved by a method of heating and ventilation in a greenhouse for greenhouse horticulture, which is characterized by the following.
（作用）
ビニールハウス内に設置された温度センサがビニールハ
ウス内の温度を検出する。こ＼でビニールハウス内の室
温が暖房設定温度（２５°Ｃ）より低いとすると、温風
暖房機が運転する。日射が強くなりビニールハウス内の
室温が上昇して暖房設定温度を超えると、換気設定温度
（２７°Ｃ）に近付く。(Function) A temperature sensor installed inside the greenhouse detects the temperature inside the greenhouse. Now, if the room temperature inside the greenhouse is lower than the heating set temperature (25°C), the hot air heater will operate. When the sunlight becomes stronger and the room temperature inside the greenhouse rises and exceeds the heating set temperature, it approaches the ventilation set temperature (27°C).
そうなると温風暖房機が停止し、換気扇に指令信号が出
される筈であるが、温風暖房機が冷却されるまでの所定
時間例えば６分間程度換気指令をひかえる。所定時間が
経過し温風暖房機が冷却したところで換気扇の運転を開
始することによって従来経験された空気の逆流を防止す
る。If this happens, the hot air heater will stop and a command signal will be sent to the ventilation fan, but the ventilation command will be delayed for a predetermined period of time, for example, about 6 minutes, until the hot air heater is cooled down. When a predetermined period of time has elapsed and the hot air heater has cooled down, the ventilation fan starts operating, thereby preventing the backflow of air that has conventionally occurred.
以下、図面を参照して本発明実施例を具体的に説明する
。Embodiments of the present invention will be specifically described below with reference to the drawings.
本発明実施例は、第１図にブロック図で示され、図中、
６１は温度センサ、６２は暖房回路、６３は換気回路、
６４は暖房出力回路、６５は換気出力回路、６６はイン
バータ、６７はへＮＤゲート、６８はＯＮディレィタイ
マである。An embodiment of the present invention is shown in a block diagram in FIG.
61 is a temperature sensor, 62 is a heating circuit, 63 is a ventilation circuit,
64 is a heating output circuit, 65 is a ventilation output circuit, 66 is an inverter, 67 is an ND gate, and 68 is an ON delay timer.
温度センサ６１は暖房回路６２と換気回路６３とに接続
されている。暖房回路６２は直接に暖房出力回路６４に
接続され温風暖房機３０に至るが、換気回路６３は、Ａ
Ｎロゲート６７とＯＮディレィタイマ６８を経て換気出
力回路６５に接続され、換気Ｓ５２に至る。The temperature sensor 61 is connected to a heating circuit 62 and a ventilation circuit 63. The heating circuit 62 is directly connected to the heating output circuit 64 and reaches the hot air heater 30, but the ventilation circuit 63 is
It is connected to the ventilation output circuit 65 via the N log gate 67 and the ON delay timer 68, leading to ventilation S52.
暖房回路６２の出力はインバータ６６により論理を反転
してＡＮＤゲート６７に接続されている。換気出力回路
６５は、暖房回路６２がＯＦＴ’、ロー（ｌｏｗ）で、
換気回路６３がＯＮ、ハイ（ｈｉｇｈ）のときにＡＮＤ
ゲート６７からハイが出る。ＡＮＤゲート６７からハイ
が出ても、ＯＮディレィタイマ６８に設定された時間例
えば６分間遅れて出力される。The output of the heating circuit 62 has its logic inverted by an inverter 66 and is connected to an AND gate 67. In the ventilation output circuit 65, the heating circuit 62 is OFT', low.
AND when the ventilation circuit 63 is ON and high
High comes out of gate 67. Even if a high signal is output from the AND gate 67, the output is delayed by the time set in the ON delay timer 68, for example, 6 minutes.
このような回路を用いることにより、温風暖房機と換気
扇の同時運転が回避されるだけでなく、温風暖房機に次
いで換気扇をＯＮ運転するとき、換気扇は温風暖房機が
冷却してから運転を開始するから、従来経験された空気
の逆流が防止される。By using such a circuit, not only can simultaneous operation of the hot air heater and ventilation fan be avoided, but also when the ventilation fan is turned on after the hot air heater, the ventilation fan is turned on after the hot air heater has cooled down. Since the start of operation, the backflow of air that has been experienced in the past is prevented.
（発明の効果〕
以上のように本発明によれば、暖房用と換気用のセンサ
が１本であるので、温度ムラによる暖房、換気同時運転
は回避され、また暖房から換気へ急に移行しても、暖房
機が確実に冷却されてから換気扇が運転されるので、煙
突からの空気の逆流がなく、暖房機の損傷、作物の被害
が回避される。(Effects of the Invention) As described above, according to the present invention, since there is only one sensor for heating and ventilation, simultaneous operation of heating and ventilation due to temperature unevenness can be avoided, and sudden transition from heating to ventilation can be avoided. However, since the ventilation fan is operated only after the heater has cooled down, there is no backflow of air from the chimney, and damage to the heater and crops can be avoided.
第１図は本発明実施例のブロック図、
第２図は温風暖房機と換気扇の併用を示す図、第３図は
油焚暖房機の図で、その（ａ）は正面断面図、（ｂ）は
側断面図である。
図中、
３１はバーナ、
３３は燃焼室、
４０は煙突、
５１はビニールハウス、
５２は換気扇、
５３は空気取入口、
６１は温度センサ、
６２は暖房回路、
６３は換気回路、
６４は暖房出力回路、
６５は換気出力回路、
６６はインバータ、
６７はへＮＯゲート、
６８はＯＮディレィタイマ
を示す。Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the combined use of a hot air heater and a ventilation fan, and Fig. 3 is a diagram of an oil-fired heater, of which (a) is a front sectional view; b) is a side sectional view. In the figure, 31 is a burner, 33 is a combustion chamber, 40 is a chimney, 51 is a vinyl house, 52 is a ventilation fan, 53 is an air intake port, 61 is a temperature sensor, 62 is a heating circuit, 63 is a ventilation circuit, and 64 is a heating output 65 is a ventilation output circuit, 66 is an inverter, 67 is a NO gate, and 68 is an ON delay timer.
Claims (1)
０）と換気扇（５２）とを併用して行なうにおいて、 １本の温度センサ（６１）に暖房回路（６２）と換気回
路（６３）とを接続し、 暖房回路（６２）を直接暖房出力回路（６４）を経て温
風暖房機（３０）に接続し、 換気回路（６３）をＡＮＤゲート（６７）、ＯＮディレ
ィタイマ（６８）、換気出力回路（６５）を経て換気扇
（５２）に接続し、 暖房回路（６２）の出力を論理を反転してＡＮＤゲート
（６７）に接続し、 換気出力回路（６５）は、暖房回路（６２）がＯＦＦ、
ローで換気回路（６３）がＯＮ、ハイのときにＡＮＤゲ
ート（６７）からハイが出力され、 ＡＮＤゲート（６７）からハイが出力されると該出力は
ＯＮディレィタイマ（６８）が設定した時間遅れて出力
されることを特徴とする施設園芸用温室における暖房・
換気方法。[Claims] Hot air heaters (3
0) and a ventilation fan (52), the heating circuit (62) and ventilation circuit (63) are connected to one temperature sensor (61), and the heating circuit (62) is directly connected to the heating output circuit. Connect the ventilation circuit (63) to the ventilation fan (52) through the AND gate (67), ON delay timer (68), and ventilation output circuit (65). , the output of the heating circuit (62) is inverted in logic and connected to the AND gate (67), and the ventilation output circuit (65) is connected when the heating circuit (62) is OFF and
When low, the ventilation circuit (63) is ON; when high, high is output from the AND gate (67), and when high is output from the AND gate (67), the output is delayed for the time set by the ON delay timer (68). Heating in greenhouses for greenhouse horticulture, which is characterized by delayed output.
Ventilation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309857A JPH02156830A (en) | 1988-12-09 | 1988-12-09 | Heating and ventilation in green house for horticulture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309857A JPH02156830A (en) | 1988-12-09 | 1988-12-09 | Heating and ventilation in green house for horticulture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02156830A true JPH02156830A (en) | 1990-06-15 |
| JPH0528571B2 JPH0528571B2 (en) | 1993-04-26 |
Family
ID=17998129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63309857A Granted JPH02156830A (en) | 1988-12-09 | 1988-12-09 | Heating and ventilation in green house for horticulture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02156830A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5004330B2 (en) * | 2006-11-17 | 2012-08-22 | 三州産業株式会社 | Heat exchanger |
-
1988
- 1988-12-09 JP JP63309857A patent/JPH02156830A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528571B2 (en) | 1993-04-26 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |