JP4431789B2 - Greenhouse cooling apparatus and cooling method using the same - Google Patents
Greenhouse cooling apparatus and cooling method using the same Download PDFInfo
- Publication number
- JP4431789B2 JP4431789B2 JP2004183196A JP2004183196A JP4431789B2 JP 4431789 B2 JP4431789 B2 JP 4431789B2 JP 2004183196 A JP2004183196 A JP 2004183196A JP 2004183196 A JP2004183196 A JP 2004183196A JP 4431789 B2 JP4431789 B2 JP 4431789B2
- Authority
- JP
- Japan
- Prior art keywords
- fine mist
- fine
- nozzle
- upward
- blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims description 35
- 239000003595 mist Substances 0.000 claims description 158
- 238000001704 evaporation Methods 0.000 claims description 28
- 230000008020 evaporation Effects 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 239000007921 spray Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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)
Description
本発明は植物等を栽培する栽培ハウス等の温室を冷房するための装置及び方法に関する。 The present invention relates to an apparatus and a method for cooling a greenhouse such as a cultivation house for growing plants and the like.
夏季高温期の栽培ハウス等の温室内では、気温が作物の栽培適温に比べ過度に上昇することがあるため、温室の生産効率を高めるべく人為的に冷房を行う必要がある。この人為的な冷房を行う方法は種々考案されているが、その中でも細霧冷房方法が簡便である。細霧冷房方法とは、細霧を発生させ、その細霧を気化させて潜熱を奪い、温室内の気温を下げる冷房方法である。この方法に用いられる装置は、水を送るポンプと、ポンプで送られた水を導く配管と、配管に接続され、細霧を発生させる細霧ノズルと、を設けることで実現できるため、構造自体が非常に簡単で、取り扱いも容易で、しかも安価であるという利点を有し、この種の温室の冷房方法として有効である。 In a greenhouse such as a cultivation house in the summer high temperature period, the air temperature may rise excessively compared to the optimum cultivation temperature for crops. Therefore, it is necessary to artificially cool the greenhouse to increase the production efficiency of the greenhouse. Various methods for performing this artificial cooling have been devised, among which the fine fog cooling method is simple. The fine fog cooling method is a cooling method that generates fine fog, vaporizes the fine fog, takes away latent heat, and lowers the temperature in the greenhouse. Since the apparatus used in this method can be realized by providing a pump for feeding water, a pipe for guiding the water sent by the pump, and a fine mist nozzle connected to the pipe for generating fine mist, the structure itself Is very simple, easy to handle and inexpensive, and is effective as a cooling method for this type of greenhouse.
この細霧冷房方法における細霧ノズルとしては、細霧を発生させる方向（以下「噴霧方向」という。）が横方向又は斜め上方（図３参照）となっている細霧ノズルが知られている。噴霧方向が横に向けられたものとしては水平面（床面）に対しおよそ平行（０度）のものがあり、噴霧方向が斜め上方に向けられたものとしては水平面に対し０度より少し大きい所定の角度を有して配置されたものがある。（なお、細霧は実際のところ細霧ノズル端面からある程度の角度の広がりをもって発生するため、ここでの噴霧方向とはその広がりにおける中心の軸を指すこととする（例えば図３においては符号Ａで指し示す軸を噴霧方向とする。後述する図１、２において同じである。））。 As a fine mist nozzle in this fine mist cooling method, a fine mist nozzle in which the direction in which the fine mist is generated (hereinafter referred to as “spraying direction”) is in the horizontal direction or obliquely upward (see FIG. 3) is known. . There are those in which the spraying direction is directed sideways (approximately 0 degrees) with respect to the horizontal plane (floor surface), and those in which the spraying direction is directed obliquely upward is a little larger than 0 degrees with respect to the horizontal plane. Some of them are arranged with an angle of. (Note that since the fine mist is actually generated with a certain degree of spread from the end face of the fine mist nozzle, the spray direction here refers to the central axis of the spread (for example, in FIG. The axis pointed at is the spray direction, which is the same in FIGS.
また従来技術として、下記特許文献１には、単孔ノズルと衝突体とを用いて薄く横方向に円盤状に広がる細霧を発生させつつ、温室上部に設けられた空気循環器を用いて細霧循環流を形成し、細霧を有効に蒸発させようとする技術が開示されている。
一般の細霧冷却方法では、細霧の多くの部分が細霧噴霧方向の周辺約１ｍの範囲で気化するため、その範囲で気温を低下させることができる。しかし、この気温低下の範囲は細霧ノズル周辺に限定されしまうため、周辺とそれ以外の範囲で気温差が生じてしまう。この気温差は下降気流を作り、この下降気流に未蒸発の細霧が巻き込まれて下降し、植物群落に必要以上の水滴として付着する場合がある。この場合、病害発生や植物光合成活動の抑制の原因となってしまう虞がある。特に、この未蒸発の細霧は細霧発生量の半分以上に達してしまう場合もあり大きな問題となることがある。なお、この未蒸発の細霧を防ぐには蒸発率を向上させることが有用である。（本明細書では蒸発した細霧量を噴霧した細霧量で割った値を蒸発率と定義する。） In a general fine mist cooling method, many portions of fine mist are vaporized in a range of about 1 m around the fine mist spraying direction, so that the temperature can be lowered within that range. However, since the range of this temperature drop is limited to the periphery of the fine fog nozzle, a temperature difference occurs between the periphery and other ranges. This temperature difference creates a descending airflow, and the evaporating fine mist is trapped in the descending airflow, which may descend and adhere to the plant community as more than necessary water droplets. In this case, there is a possibility of causing disease generation or suppression of plant photosynthesis activity. In particular, this non-evaporated fine mist may reach half or more of the amount of generated fine mist, which may be a serious problem. In order to prevent this non-evaporated fine mist, it is useful to improve the evaporation rate. (In this specification, a value obtained by dividing the amount of evaporated fine mist by the amount of atomized fine mist is defined as the evaporation rate.)
また一方で、細霧ノズル周辺の狭い領域のみに限定されしまう気温低下範囲は、温室全体における気温低下の不均一さも生じさせてしまうこともある。これを解消するために細霧ノズルを多数設けて均一化を図ることが考えられるが、上記の未蒸発の細霧の問題を解決しない限り、未蒸発の細霧をより多く発生させてしまうため、単純に多数採用することで解決できるわけではない。 On the other hand, the temperature drop range limited to only a narrow region around the fine fog nozzle may also cause uneven temperature drop in the entire greenhouse. In order to solve this problem, it is conceivable to provide a large number of fine mist nozzles for equalization. However, unless the above-mentioned problem of non-evaporated fine mist is solved, more non-evaporated fine mist is generated. However, simply adopting a large number does not solve the problem.
また、上記の未蒸発の細霧に関する問題を解消する方法として、一定時間の細霧噴霧後に植物体表面に付着した未蒸発細霧が蒸発するまでの間、細霧の発生を停止させる間欠運転方法という方法がある。しかし、この間欠運転方法を採用すると、気温の急激かつ幅の大きい時間変動を生じさせてしまう虞があり、新たに別の問題を発生させてしまうこととなる。 In addition, as a method of solving the above-mentioned problems related to non-evaporated fine mist, intermittent operation is performed to stop the generation of fine mist until the non-evaporated fine mist adhering to the plant surface evaporates after a certain amount of fine mist spray There is a method. However, if this intermittent operation method is adopted, there is a risk of causing a rapid and wide time fluctuation of the temperature, which causes another problem.
なお、上記特許文献１に記載の技術によると、送風機に近い位置に発生した細霧については有効に蒸発させることができる。しかし、送風機から離れるほどその気流は不均一で弱いものとなり、細霧の蒸発率も不均一で、かつ、低下し、温室における気温低下も不均一となる。 In addition, according to the technique of the said patent document 1, about the fine mist which generate | occur | produced in the position near a fan, it can be evaporated effectively. However, the further away from the blower, the non-uniform and weak air flow, the non-uniform evaporation rate of the fine mist, and the non-uniform temperature drop in the greenhouse.
以上、本発明は上記課題を解決するためになされるものであり、本発明の目的は、未蒸発の細霧の植物群への必要以上の付着、温室内の気温分布の不均一化および気温の急激かつ幅の大きい時間変動、を十分抑えることのできる、より高性能な温室の冷房装置、冷房方法を提供することにある。 As described above, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to attach more than necessary to the plant group of non-evaporated fine mist, to make the temperature distribution in the greenhouse nonuniform and to adjust the temperature. It is an object of the present invention to provide a high-performance greenhouse cooling apparatus and cooling method capable of sufficiently suppressing the rapid and wide variation in time.
上記目的を達成するために、本発明は具体的に、以下の手段を採用する。
例えば第一の手段として、水を送るポンプと、このポンプで送られた水を導く配管と、この配管に接続され、細霧を発生させる細霧ノズルと、細霧ノズルの下側に配置される送風機と、を有する温室の冷房装置とする。本発明はこのような構成とすることにより、送風機による気流を用いて細霧を広く拡散させ、蒸発率を向上させることができ、また、間欠運転方法が必ずしも必須でなくなるため、気温の大きな変動を抑え、高性能な温室の冷房装置を提供することが可能となる。また、一つの細霧ノズルから発生する細霧は従来技術に比べ広く均一に気温を低下させることができる。
In order to achieve the above object, the present invention specifically adopts the following means.
For example, as a first means, a pump for feeding water, a pipe for guiding the water sent by this pump, a fine mist nozzle connected to this pipe for generating fine mist, and a lower side of the fine mist nozzle. And a cooling device for a greenhouse having a blower. By adopting such a configuration in the present invention, it is possible to widely spread fine mist using the airflow generated by the blower and improve the evaporation rate, and the intermittent operation method is not necessarily essential, and thus a large fluctuation in temperature. Therefore, it is possible to provide a high-performance greenhouse cooling device. Further, the fine mist generated from one fine mist nozzle can lower the temperature widely and uniformly compared to the prior art.
また、細霧ノズルに上向きの細霧を発生させ、送風機に上向きの乱流を発生させることは、下側から供給される乱流に細霧をより乗せやすくし、蒸発率を向上させることができ望ましい。 Also, generating upward fine mist in the fine mist nozzle and generating upward turbulent flow in the blower makes it easier to place the fine mist in the turbulent flow supplied from the lower side and improve the evaporation rate. This is desirable.
また、細霧ノズルは、鉛直線と０〜３０度の範囲の角度で細霧を上向きに発生させること、即ち、細霧ノズルから発生する細霧の鉛直線となす角度が３０度以下であることにより、細霧ノズルから発生する細霧をもれなく乱流に乗せることができ、より蒸発率を向上させることができる。 Further, the fine mist nozzle generates the fine mist upward at an angle in the range of 0 to 30 degrees with the vertical line, that is, the angle formed with the vertical line of the fine mist generated from the fine mist nozzle is 30 degrees or less. As a result, the fine mist generated from the fine mist nozzle can be put on the turbulent flow without fail, and the evaporation rate can be further improved.
また、細霧ノズルの下側に配置される送風機は細霧ノズルが発生する細霧を効率よく上側に拡散させるものであるから、細霧ノズルの下側しかも近傍に配置することが望ましい。 Moreover, since the blower arranged below the fine fog nozzle diffuses the fine fog generated by the fine fog nozzle efficiently to the upper side, it is desirable to arrange the blower below and near the fine fog nozzle.
また、第二の手段として、水を送るポンプと、このポンプで送られた水を導く配管と、この配管に接続され、細霧を発生する複数の細霧ノズルと、複数の細霧ノズル各々の下側に配置される送風機と、を有する温室の冷房装置とする。これにより、第一の手段とほぼ同様の効果を得ることができ、また、複数の細霧ノズルを設けた場合であっても、これら一つ一つの細霧ノズルから発生する細霧は均一に気温を低下させることができているため、温室内を均一に冷房することができる。しかもこの場合においては、蒸発率を向上することができているため、従来技術に比べて細霧ノズルの数を大幅に減らすことができる。 Also, as a second means, a pump for sending water, a pipe for guiding the water sent by this pump, a plurality of fine fog nozzles connected to this pipe and generating fine fog, and a plurality of fine fog nozzles, respectively And a cooling device for a greenhouse having a blower disposed on the lower side. Thereby, substantially the same effect as the first means can be obtained, and even when a plurality of fine mist nozzles are provided, the fine mist generated from each fine mist nozzle is uniform. Since the temperature can be lowered, the inside of the greenhouse can be uniformly cooled. Moreover, in this case, since the evaporation rate can be improved, the number of fine mist nozzles can be greatly reduced as compared with the prior art.
また、細霧ノズルに上向きの細霧を発生させ、送風機に上向きの乱流を発生させることは、下側から供給される乱流に細霧をより乗せやすくし、蒸発率を向上させる観点からより望ましい。 In addition, generating upward fine mist in the fine mist nozzle and generating upward turbulent flow in the blower make it easier to place fine mist in the turbulent flow supplied from the lower side and improve the evaporation rate. More desirable.
また、細霧ノズルは、鉛直線と０〜３０度の範囲の角度で細霧を上向きに発生させること、即ち、細霧ノズルから発生する細霧の鉛直線となす角度が３０度以下であることにより、細霧ノズルから発生する細霧をもれなく乱流に乗せることができ、より蒸発率を向上させることができる。 Further, the fine mist nozzle generates the fine mist upward at an angle in the range of 0 to 30 degrees with the vertical line, that is, the angle formed with the vertical line of the fine mist generated from the fine mist nozzle is 30 degrees or less. As a result, the fine mist generated from the fine mist nozzle can be put on the turbulent flow without fail, and the evaporation rate can be further improved.
また、細霧ノズルの下側に配置される送風機は、細霧ノズルが発生する細霧を効率よく上側に拡散させるものであるから、細霧ノズルの下側かつ近傍に配置することが望ましい。 Moreover, since the air blower arrange | positioned under a fine mist nozzle diffuses the fine mist which a fine mist nozzle generate | occur | produces efficiently upwards, it is desirable to arrange | position under a fine mist nozzle and the vicinity.
また、第三の手段として、細霧を発生させ、この細霧に対し、鉛直方向下側から上側に乱流を発生させることにより前記細霧の蒸発を促進させる温室の冷房方法とする。これにより、第一の手段とほぼ同様の効果を得ることができる。 Further, as a third means, a cooling method for a greenhouse that promotes evaporation of fine mist by generating fine mist and generating turbulent flow from the lower side in the vertical direction to the upper side with respect to the fine mist. Thereby, substantially the same effect as the first means can be obtained.
またこの場合において、細霧を上向きに発生させることも乱流に細霧を乗せやすくし、蒸発率を向上させ、作物に水滴として付着することの防止を有効にできる。 Further, in this case, generating the fine mist upward also makes it easy to place the fine mist on the turbulent flow, improves the evaporation rate, and can effectively prevent the water droplets from adhering to the crop.
またこの場合において前記細霧を鉛直線と０〜３０度の角度となるよう上向きに発生することにより、ほぼすべての発生した細霧を乱流に乗せることができ、より蒸発率の向上を図ることができる。 Further, in this case, by generating the fine mist upward so as to be at an angle of 0 to 30 degrees with the vertical line, almost all the generated fine mist can be put on the turbulent flow, and the evaporation rate is further improved. be able to.
以上、本発明は細霧を発生させ、この細霧に対し鉛直方向下側から上側に乱流を発生させることで細霧を細霧発生位置より上側に拡散させることができ、細霧の蒸発を促進させ、蒸発率を高くすることができ、未蒸発の細霧の植物群への必要以上の付着を防ぐことができる。また間欠運転方法を採用しなくてもよくなることから温室内の気温の時間変動をも十分抑えた運転が可能となる。また、高い蒸発率と常時運転方法を採用すれば、細霧ノズルの温室内の設置数を減らすことができる。そして、本発明で使用される送風機１個の価格は、通常、細霧ノズル１個の価格より安価である。したがって、送風機を取り付けても細霧ノズルの設置数が減らせるために、本発明の細霧ノズルおよび送風機の設置コストは従来法の細霧ノズルの設置コストと比べて、同等またはそれ以下にすることが可能となる。 As described above, the present invention generates a fine mist, and by generating a turbulent flow from the vertical lower side to the upper side of the fine mist, the fine mist can be diffused upward from the fine mist generation position. Can be promoted, the evaporation rate can be increased, and unnecessarily adhering to an unevaporated fine mist plant group can be prevented. In addition, since it is not necessary to adopt an intermittent operation method, it is possible to perform an operation with sufficiently suppressed time fluctuation of the temperature in the greenhouse. Moreover, if a high evaporation rate and a constant operation method are adopted, the number of fine fog nozzles installed in the greenhouse can be reduced. The price of one blower used in the present invention is usually lower than the price of one fine fog nozzle. Therefore, the installation cost of the fine fog nozzle and the blower of the present invention is equal to or lower than the installation cost of the conventional fine fog nozzle in order to reduce the number of fine fog nozzles installed even if the blower is attached. It becomes possible.
以下、本発明の実施例について図面を用いて詳細に説明する。なお本明細書では、細霧ノズルの向きや送風機の配置などの説明において「上側」、「下側」という用語を用いているが、一般に、これらは鉛直線を基準として定義してある。例えば、「ＡがＢの上側にある」とは、ＡがＢよりもより地面から遠いことを意味する。またこの場合、必ずしもそれぞれが一本の鉛直線に乗っていない場合も含まれる。「下側」もこれにおいて同様に規定する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present specification, the terms “upper side” and “lower side” are used in the description of the direction of the fine fog nozzle, the arrangement of the blower, etc., but these are generally defined on the basis of the vertical line. For example, “A is above B” means that A is farther from the ground than B. Further, in this case, a case where each of them is not necessarily on one vertical line is included. The “lower side” is similarly defined in this.
また、「上向き」「下向き」についても、一般に、鉛直線を基準として定義しており、例えば「Ａの方向が上向きとなるよう配置されている」とは、Ａの方向の鉛直線に対する射影成分が地面から遠ざかる方向になっていることを意味する。「下向き」もこれにおいて同様に規定する。 Also, “upward” and “downward” are generally defined with reference to a vertical line. For example, “arranged so that the direction of A is upward” is a projection component of the vertical line in the direction of A. Means in a direction away from the ground. “Downward” is defined in this manner as well.
図１は、本実施例に係る冷却装置における細霧装置の概略図である。本実施例における細霧装置は、細霧ノズル１と、この細霧ノズル１の下側に配置される２個の送風機２とを有しており、細霧ノズル１及び２個の送風機２は、水平方向にのびる支持棒３に、取り付け具５を介してそれぞれ固定されている。細霧ノズル１には、水を導く配管４が接続されており、細霧のもととなる水はこの配管４から供給される。なお配管４は、水を送るポンプ（図１で図示せず。）に接続され、運転時にはポンプから配管へと水が供給されることとなる。また、細霧ノズル１は上向きに設置されており、平均粒径約３０μｍの細霧を鉛直線から３０度以内の角度（３０度以内）で発生させる。送風機２は、下側から上側へ向かう気流（上向きの気流）を発生させるよう配置されており、支持棒３を対称軸として水平面において対称に配置されている。本実施例で使用した送風機２の流量は１分あたり１ｍ３である。 FIG. 1 is a schematic diagram of a fine fog device in the cooling device according to the present embodiment. The fine fog device in the present embodiment has a fine fog nozzle 1 and two blowers 2 arranged on the lower side of the fine fog nozzle 1, and the fine fog nozzle 1 and the two blowers 2 are These are fixed to the support rod 3 extending in the horizontal direction via attachments 5. A pipe 4 for guiding water is connected to the fine mist nozzle 1, and water that is a source of fine mist is supplied from the pipe 4. The pipe 4 is connected to a pump for sending water (not shown in FIG. 1), and water is supplied from the pump to the pipe during operation. The fine mist nozzle 1 is installed upward, and generates fine mist having an average particle diameter of about 30 μm at an angle (within 30 degrees) within 30 degrees from the vertical line. The blower 2 is arranged so as to generate an air flow (upward air flow) from the lower side to the upper side, and is arranged symmetrically in the horizontal plane with the support rod 3 as the axis of symmetry. The flow rate of the blower 2 used in this example is 1 m 3 per minute.
送風機２が発生させる気流はいわゆる乱流となっており（図１中の符号Ｂ１及びＢ２）、この乱流が細霧を上側に吹き上げ細霧を上方に輸送し拡散させるため効率よく蒸発させることができ、蒸発率を向上させることができる。なお本実施例では、細霧ノズル１から発生する細霧は鉛直線と０〜３０度の範囲となるよう（図１中のＲが３０度以下となるよう）に細霧（図１の符号Ｗ）を発生させているため、発生した細霧はほぼ全ての部分が送風機２の発生させる気流の中に入ることとなる。これ以上広い場合は蒸発率向上の効果がないわけではないが、送風機が発生させる気流の外に細霧を送ってしまうことがあり、その場合その部分の細霧は拡散されず、広範囲に均一に蒸発率を向上させる効果が薄くなってしまう虞がある。 The air flow generated by the blower 2 is a so-called turbulent flow (reference numerals B1 and B2 in FIG. 1). This turbulent flow blows up the fine mist upward and transports and diffuses the fine mist upward to efficiently evaporate. And the evaporation rate can be improved. In the present embodiment, the fine mist generated from the fine mist nozzle 1 is in the range of 0 to 30 degrees with the vertical line (so that R in FIG. 1 is 30 degrees or less) (reference numeral in FIG. 1). Since W) is generated, almost all of the generated fine mist enters the air flow generated by the blower 2. If it is wider than this, it does not mean that the evaporation rate is not improved, but it may send fine mist outside the air flow generated by the blower. In that case, the fine mist in that part is not diffused and is uniform over a wide range. In addition, the effect of improving the evaporation rate may be reduced.
なお送風機２は、細霧に対し効率よく気流を送る観点から、支持棒３及び配管４によって遮られないよう支持棒３及び配管４の直下を避けて配置している。なお支持棒３と配管４においても、送風機が遮る面積をできる限り少なくすべく、鉛直方向から見た場合に重なるように配置してある。もちろん、下記で述べる「ぼた落ち」を防ぐことができるのであれば、送風機は、細霧ノズルの下側であって、支持棒３、配管４の上側に配置してもよい。 In addition, the blower 2 is arrange | positioned avoiding the direct bottom of the support rod 3 and the piping 4 so that it may not be interrupted | blocked by the support rod 3 and the piping 4 from a viewpoint of sending airflow efficiently with respect to a fine fog. The support rod 3 and the pipe 4 are also arranged so as to overlap when viewed from the vertical direction so as to minimize the area blocked by the blower. Of course, the blower may be disposed below the fine mist nozzle and above the support rod 3 and the pipe 4 as long as the “lid drop” described below can be prevented.
また、本実施例では支持棒３と配管４とは別々なものを使用しているが、配管に支持棒としての機能を兼ねさせてこれらを一本とした構成としてもよい。このようにすれば、送風機が発生させる気流を妨げないよう支持棒と配管とを合わせる手間を省くことができ、使用中の振動等の要因によってずれることもない。 In the present embodiment, the support rod 3 and the pipe 4 are different from each other. However, the pipe may have a function as a support bar, and these may be configured as one. In this way, it is possible to save the trouble of matching the support rod and the pipe so as not to disturb the air flow generated by the blower, and there is no deviation due to factors such as vibration during use.
また送風機２は、細霧ノズル１が発生する細霧を上側へ輸送拡散させるためのものであるため、できる限り細霧ノズル１の近傍に配置させることが肝要である。しかし送風機２が細霧ノズル１よりも上側に配置されてしまうと、細霧ノズル１から噴霧された細霧が送風機２に付着して水滴として落下するいわゆる「ぼた落ち」が起こってしまうため、細霧ノズル１の細霧噴き出し面より下側であることが望ましい。従って、送風機２は細霧ノズル１の細霧噴出し面からおよそ１０ｃｍ程度離れた位置に取り付けることがより望ましい（この範囲を「近傍」ということとする）。なおここで用いられる送風機２は、細霧を上側へ輸送拡散させるためのものであり、小型のもので十分適用可能である。送風機の大きさについては特段制限はないが、およそ直径として１０ｃｍ程度（重さ１００ｇ、消費電力２Ｗ程度）のもので十分に効果を達成することができ、コストにおいて有利となる。
また、本実施例における細霧ノズル１は平均粒径約３０μｍであるが、粒径は５０μｍ以下の範囲であれば特に問題なく使用できる。５０μｍ以上であると、細霧が空中を浮遊しにくいという問題がある。また、冷房効果の観点を考慮すると２０μｍ〜４０μｍの平均粒径がなお望ましい。
Further, since the blower 2 is for transporting and diffusing the fine mist generated by the fine mist nozzle 1 upward, it is important that the blower 2 be arranged as close to the fine mist nozzle 1 as possible. However, if the blower 2 is disposed above the fine mist nozzle 1, so-called “dropping” occurs in which the fine mist sprayed from the fine mist nozzle 1 adheres to the blower 2 and falls as water droplets. It is desirable that it is below the fine fog ejection surface of the fine fog nozzle 1. Therefore, it is more desirable that the blower 2 is attached at a position approximately 10 cm away from the fine fog ejection surface of the fine fog nozzle 1 (this range is referred to as “near”). Note that the blower 2 used here is for transporting and diffusing fine mist upward, and is small and sufficiently applicable. The size of the blower is not particularly limited, but a diameter of about 10 cm (weight: 100 g, power consumption: about 2 W) can sufficiently achieve the effect, which is advantageous in cost.
Further, the fine fog nozzle 1 in this embodiment has an average particle diameter of about 30 μm, but can be used without any particular problem as long as the particle diameter is in the range of 50 μm or less. If it is 50 μm or more, there is a problem that fine mist is difficult to float in the air. In view of the cooling effect, an average particle diameter of 20 μm to 40 μm is still desirable.
また、本実施例では送風機を２個使用しているが、コストを考慮した場合、細霧ノズル、配管により多少気流の遮断はあるが、１個の送風機で構成することも可能ではある（後の実験結果にて開示する。）。この場合、細霧を細霧ノズルの上側に均一に拡散させる必要から、送風機の回転軸とノズルの噴霧方向とを概ね同じ向きにすると均一に気温を低下させることができる。もしくは、配管による気流の遮断を考慮して、より大きい風量の送風機１個で構成することも可能である。 In this embodiment, two blowers are used. However, in consideration of cost, the air flow is interrupted to some extent by the fine fog nozzle and piping, but it is also possible to configure with one blower (after (It will be disclosed in the experimental results). In this case, since it is necessary to diffuse the fine mist uniformly above the fine mist nozzle, the air temperature can be uniformly reduced by making the rotation axis of the blower and the spray direction of the nozzle substantially the same. Alternatively, in consideration of the blockage of the air flow by the piping, it is possible to configure with a single blower having a larger air volume.
更に、１つの細霧ノズルに下側から上向きの気流を送るよう圧縮した気流を導くよう送風管を用いる構成もコストや設置の容易性を犠牲にするが、蒸発率向上の利点を有するため採用可能ではある。 In addition, the configuration using a blower pipe to guide the compressed air flow to send an upward air flow from the lower side to one fine fog nozzle sacrifices cost and ease of installation, but it is adopted because it has the advantage of improving the evaporation rate It is possible.
以上の本実施例の構成により、細霧ノズル１で発生した細霧は送風機２が発生する乱流により細霧ノズル１より上側１ｍ程度の範囲で大部分蒸発させることができ、蒸発率を向上させることができる。なお、一部の細霧が冷却された空気の下降にともない細霧ノズル１の取り付け位置よりも落下してしまう場合があるが、この場合においても、細霧は上方に拡散させられて相当の距離の移動した後落下したものであるため、細霧ノズル１の取り付け位置より下側１ｍ以内でほぼ全て蒸発させることができ、蒸発率を向上させ、しかも常時運転が可能となり、大きな気温の時間変動なく温室を冷房することができる。なお本実施例では常時運転が可能となるが、外気の変動に応じて細霧を停止する等の運転も可能であり、必ずしも間欠運転方法を採用することを否定するものではない。 With the configuration of this embodiment, the fine mist generated by the fine mist nozzle 1 can be largely evaporated in the range of about 1 m above the fine mist nozzle 1 due to the turbulent flow generated by the blower 2, and the evaporation rate is improved. Can be made. Note that some of the fine mist may fall from the position where the fine mist nozzle 1 is attached as the cooled air descends, but in this case as well, the fine mist is diffused upward and has a considerable amount. Since it has fallen after moving the distance, almost all of it can be evaporated within 1 m below the installation position of the fine mist nozzle 1, the evaporation rate is improved, and it is possible to always operate, and the time of the large temperature The greenhouse can be cooled without fluctuation. In the present embodiment, it is possible to always operate, but it is also possible to perform an operation such as stopping the fine mist according to fluctuations in the outside air, and it is not necessarily denied that the intermittent operation method is adopted.
次に、本実施例における実験結果について図４及び表１を用いて説明する。図４は、本実施例における実験結果を比較例の結果とともに示した図である。図４は、冷房装置を用いて細霧を一分間発生させ、細霧発生停止直後、細霧発生停止一分後、細霧発生停止二分後のそれぞれにおける細霧ノズル１の下側５０ｃｍの水平面における気温分布を示したものである。なおポンプが水を送る圧力は２ＭＰａで、細霧を発生させる速度は毎分約７０ｇである。また、本実験は送風機の数や細霧ノズルの向き以外はほぼ同じ条件で行い、送風機による乱流以外の気流などによる影響をできる限り排除した室内で行った。 Next, the experimental results in this example will be described with reference to FIG. FIG. 4 is a diagram showing the experimental results in this example together with the results of the comparative example. FIG. 4 shows a horizontal plane of 50 cm below the fine mist nozzle 1 in which a fine mist is generated for one minute using a cooling device, immediately after the fine mist generation is stopped, one minute after the fine mist generation is stopped, and two minutes after the fine mist generation is stopped. The temperature distribution in is shown. The pressure at which the pump sends water is 2 MPa, and the speed at which fine mist is generated is about 70 g per minute. In addition, this experiment was performed under almost the same conditions except for the number of blowers and the direction of the fine fog nozzle, and was conducted in a room where the influence of airflow other than turbulent flow caused by the blowers was eliminated as much as possible.
図４の結果は４段３列で示されており、各段は各実験条件（細霧ノズルの向き、送風機の数等）に対応し、各列はある所定の時間に対応する気温分布を示している。図４において、最上段は本実施例に係る冷房装置を用いた場合の実験結果であり、細霧ノズルが発生する細霧は上向きで、送風機は２個用いた場合の結果を示している。また図４の上から二段目の結果は、細霧ノズルは上向きの細霧を発生し、送風機が１個である場合の結果を示している。また図４の下から二段目の結果は、細霧ノズルが発生する細霧は上向きであるが、送風機を取り付けていない場合（比較例、図２参照）の結果を示している。また、図４の最下段は、細霧ノズルを上向きではあるが斜め上向き（鉛直方向から３０度以上の例。本実施例では７５度）に設置し、しかも送風機を取り付けない場合（比較例、図３参照）の結果を示している。 The results of FIG. 4 are shown in four rows and three rows, each row corresponding to each experimental condition (direction of fine fog nozzle, number of blowers, etc.), and each row shows the temperature distribution corresponding to a certain predetermined time. Show. In FIG. 4, the uppermost row shows the experimental results when the cooling device according to the present embodiment is used, and shows the results when the fine mist generated by the fine mist nozzle is upward and two blowers are used. Moreover, the result of the 2nd step | paragraph from the top of FIG. 4 has shown the result in case a fine fog nozzle generate | occur | produces upward fine fog and there is one fan. Further, the result of the second stage from the bottom of FIG. 4 shows the result when the fine mist generated by the fine mist nozzle is upward but the blower is not attached (see Comparative Example, FIG. 2). 4 is a case where the fine fog nozzle is installed upward but obliquely upward (an example of 30 degrees or more from the vertical direction, 75 degrees in this embodiment), and a blower is not attached (comparative example, The result of FIG. 3) is shown.
まず、図４の細霧ノズルが発生する細霧の方向を斜め方向にし、かつ、送風機を配置していない場合は、細霧が発生する方向に気温を下げる効果が見られるものの、それ以外の方向には殆ど気温の低下が見られなかった。これは細霧発生を停止した後一分、二分においても同様であった。つまり温室の冷房方法としては効果が十分ではなかった。 First, when the direction of the fine mist generated by the fine mist nozzle in FIG. 4 is set to an oblique direction and no blower is arranged, the effect of lowering the temperature in the direction of the fine mist is seen, but other than that There was almost no decrease in temperature in the direction. This was the same at one minute and two minutes after the generation of fine fog was stopped. In other words, the effect was not sufficient as a cooling method for the greenhouse.
次に、図４の細霧ノズルが上向きであるが送風機がない場合は、細霧発生の停止直後、細霧発生停止後一分及び二分と時間が経過しても、気温が低下した領域は狭いまま広がらなかった。これは即ち細霧が上向きに発生してもそのまま攪拌されず下に落ちていくため、細霧を拡散させることができなかったことを意味する。従って、この場合も温室の冷房方法としては効果が十分とはいえなかった。なお細霧停止後、最も気温が低下した部分と最も低下しなかった部分の差は２度あった。細霧発生をさらに長くする場合には、この気温差はさらに大きくなり、気温分布はさらに不均一になってしまう。 Next, when the fine mist nozzle in FIG. 4 is facing upward but there is no blower, the region where the temperature has decreased is immediately after the fine mist generation stops, even if one minute and two minutes have elapsed after the fine mist generation stop. It was narrow but did not spread. This means that even if the fine mist is generated upward, the fine mist cannot be diffused because it is not stirred as it is and falls down. Therefore, in this case as well, the effect is not sufficient as a greenhouse cooling method. In addition, after the fine fog stop, there was a difference of 2 degrees between the part where the temperature decreased most and the part where the temperature did not decrease most. When the generation of fine mist is further prolonged, this temperature difference becomes further larger, and the temperature distribution becomes more uneven.
これらに対し、図４の最上段の細霧ノズルが上向きに細霧を発生させ、かつ、送風機を二個用いた場合においては、低温領域の狭小化は観測できず、むしろ時間経過に伴い拡大していることが確認できた。また、この場合の平均気温の時間変化は、送風機を配置していない場合と比べて小さく、全体の気温をより均一により低下させていたことが分かる。即ち、この方法は温室の冷房方法として効果が高いことが分かった。 In contrast, when the uppermost fine mist nozzle in FIG. 4 generates fine mist upward and two air blowers are used, the narrowing of the low temperature region cannot be observed, but rather expands with time. I was able to confirm. Moreover, it turns out that the time change of the average temperature in this case was small compared with the case where the air blower is not arrange | positioned, and was reducing the whole temperature more uniformly. That is, this method was found to be highly effective as a cooling method for a greenhouse.
なお、図４の上から二段目の細霧ノズルが上向きに細霧を発生させ、送風機を１個用いた場合においては、細霧ノズル周辺で気温の低下が見られたものの送風機２個を用いた場合と比べて気温が低下した領域は狭かった。これは本実施例で使用した送風機の流量が足りずに空気が十分に攪拌されず、細霧を拡散させる効果が少なかったためである。 In addition, when the fine mist nozzle of the second stage from the top of FIG. 4 generates fine mist and uses one blower, the two blowers of which a temperature drop was observed around the fine mist nozzle were used. Compared with the case where it used, the area where temperature fell was narrow. This is because the flow rate of the blower used in this example was insufficient and the air was not sufficiently stirred, and the effect of diffusing fine mist was small.
そして、本実験結果におおける細霧を発生させた量（噴霧量（Ａ））と、蒸発しなかった細霧の量（未蒸発細霧量（Ｂ））、及び蒸発した細霧の量（（Ａ）−（Ｂ））、蒸発率（％）、（（（Ａ）−（Ｂ））／（Ａ）×１００）は以下の表１のとおりであった。なお表1において、未蒸発の細霧量とは細霧発生停止２分後に回収して求めたものである。 And the amount (spray amount (A)) which generated the fine mist in this experimental result, the amount of fine mist that did not evaporate (un-evaporated fine mist amount (B)), and the amount of evaporated fine mist ((A)-(B)), evaporation rate (%), (((A)-(B)) / (A) × 100) were as shown in Table 1 below. In Table 1, the amount of unevaporated fine mist is obtained by collecting 2 minutes after the fine mist generation is stopped.
表１の送風機２個における結果に着目すると、７３ｇの細霧を発生させたにもかかわらず、殆どの細霧が蒸発しており、９６％と蒸発率が非常に高いことが分かる。
また、二段目の送風機が１個の場合の例においても、７６．４ｇの細霧を発生させたにもかかわらず８６％もの細霧が蒸発し、高い蒸発率であることが分かる。もちろん、この場合においても１ｍ下では殆どの細霧が蒸発し、地面に付着した水滴は極めてわずかであった。
Paying attention to the results of two blowers in Table 1, it can be seen that most of the fine mist is evaporated despite the generation of 73 g of fine mist, and the evaporation rate is as high as 96%.
In addition, in the example in the case where there is one second-stage blower, 86% of fine mist evaporates despite the generation of 76.4 g of fine mist, indicating that the evaporation rate is high. Of course, even in this case, most of the fine mist evaporated under 1 m, and very few water droplets adhered to the ground.
一方、最下段目の送風機がなく斜め上方に細霧を発生させた場合において、最上段、第二段とほぼ同じだけの細霧を発生させたが、４７．６ｇと６５％程度しか蒸発しなかった。このとき、地面に水滴が多量に付着したことが確認できた。なお、三段目の場合、細霧ノズルは上向きであるが送風機がない場合においては、最上段、第二段とほぼ同じだけの細霧を発生させたが、４４．５ｇと６０％程度しか蒸発せず、むしろ斜め上方に向けた場合よりも蒸発率は低かった。この場合においても地面に水滴が付着していることが確認できた。 On the other hand, when there was no blower in the lowermost stage and the fine mist was generated obliquely upward, only the same amount of fine mist was generated as in the uppermost and second stages, but only 47.6 g and about 65% evaporated. There wasn't. At this time, it was confirmed that a large amount of water droplets adhered to the ground. In the case of the third stage, the fine mist nozzle is facing upward, but when there is no blower, only the same amount of fine mist was generated as in the uppermost stage and the second stage. It did not evaporate, but rather the evaporation rate was lower than when directed obliquely upward. Even in this case, it was confirmed that water droplets adhered to the ground.
以上、比較例に対し、本実施例の冷房装置は１．５倍もの蒸発率を有する、即ち冷房効率が高く、しかも均一に気温を低下させることができものでることがわかった。 As described above, it was found that the cooling device of the present example has an evaporation rate of 1.5 times that of the comparative example, that is, the cooling efficiency is high and the temperature can be lowered uniformly.
次に、図５を用いてこの実施例で述べた冷房装置を用いた温室の適用について説明する。図５は温室の一例である温室について説明するものである。図５の温室７は、天窓５及び喚起窓６が空けられているが、温室７の外からの外乱を抑えるべく側面や天井をビニール等で仕切られた構造となっている。そしてこの温室７の内部には、水を送るポンプ８と、このポンプが送った水を導く配管２と、この配管２に接続された複数の細霧ノズル１と、これら細霧ノズル１のそれぞれの下側しかも近傍に配置される送風機３を複数有して構成されている。なお配管２は複数の畝に形成される作物群落４に対応して枝分かれ構造となっており、その枝の各々に細霧ノズル１とそれに対応して配置される送風機３を有している。また、配管２は、細霧ノズル１より下に細霧が降下する可能性があることから植物群落上面より１ｍ以上設けると効果的である。但し、本実施例における冷房方法では、１ｍあればほぼ細霧を蒸発させることができるため、従来よりも低く設置し、冷房装置のメンテナンス等を行いやすくすることもできる。以上、この温室７は、本実施例の細霧ノズル１と送風機２とを対で用いているため、図４の実験結果で示すとおり、温室７のいずれの場所においても均一に気温低下を実現することができる。特に、本実施例の冷房装置では間欠運転方法を採用することなく冷房ができるため、未蒸発の細霧が水として植物等に付着するのを防ぎ、気温の急激かつ幅の大きな時間変動を極力抑えることができ、かつ、温室７の内部で均一な冷房を実現することができる。なお、本冷房装置は１個の細霧ノズルによって冷房できる範囲が広いため、細霧ノズルの数を減らすことでコスト削減にも大きく寄与する。 Next, application of a greenhouse using the cooling apparatus described in this embodiment will be described with reference to FIG. FIG. 5 illustrates a greenhouse which is an example of a greenhouse. The greenhouse 7 of FIG. 5 has a skylight 5 and an awakening window 6, but has a structure in which the side and ceiling are partitioned with vinyl or the like in order to suppress disturbance from outside the greenhouse 7. And in this greenhouse 7, the pump 8 which sends water, the piping 2 which guides the water which this pump sent, the some fine fog nozzle 1 connected to this piping 2, and each of these fine fog nozzle 1 And a plurality of blowers 3 disposed in the vicinity thereof. The pipe 2 has a branching structure corresponding to the crop communities 4 formed in a plurality of straws, and has a fine fog nozzle 1 and a blower 3 arranged corresponding to each branch. Moreover, since the fine mist may fall below the fine mist nozzle 1, the pipe 2 is effective if it is provided 1 m or more from the plant community upper surface. However, in the cooling method according to the present embodiment, if it is 1 m, it is possible to evaporate the fine mist, so that it can be installed lower than the conventional one to facilitate the maintenance of the cooling device. As described above, since this greenhouse 7 uses the fine mist nozzle 1 and the blower 2 of this embodiment in pairs, as shown in the experimental results of FIG. can do. In particular, since the cooling device of the present embodiment can be cooled without adopting the intermittent operation method, it prevents non-evaporated fine mist from adhering to plants as water, and minimizes rapid and wide fluctuations in temperature as much as possible. It can be suppressed and uniform cooling can be realized inside the greenhouse 7. In addition, since this cooling device has a wide range which can be cooled by one fine fog nozzle, it greatly contributes also to cost reduction by reducing the number of fine fog nozzles.
１…細霧ノズル、２…配管、３…送風機、４…作物群落、５…天窓、６…換気窓、７…温室、８…ポンプ、Ａ…噴霧方向、Ｂ１、Ｂ２…乱流、Ｒ…鉛直線と細霧とのなす角、Ｗ…細霧
DESCRIPTION OF SYMBOLS 1 ... Fine fog nozzle, 2 ... Piping, 3 ... Blower, 4 ... Crop community, 5 ... Skylight, 6 ... Ventilation window, 7 ... Greenhouse, 8 ... Pump, A ... Spray direction, B1, B2 ... Turbulence, R ... Angle between vertical line and fine fog, W ... fine fog
Claims (6)
該ポンプで送られた水を導く配管と、
該配管に接続され、上向きに細霧を発生させる細霧ノズルと、を有する冷房装置であって、
該細霧ノズルの下側に配置されて上向きの乱流を発生させる送風機と、を有し、前記細霧ノズル及び前記送風機は植物群落より上に設置されることを特徴とする温室の冷房装置。 A pump to send water,
Piping for guiding the water sent by the pump;
A fine mist nozzle connected to the pipe and generating fine mist upward,
A blower disposed below the fine fog nozzle and generating upward turbulent flow, wherein the fine fog nozzle and the blower are installed above a plant community. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004183196A JP4431789B2 (en) | 2004-06-22 | 2004-06-22 | Greenhouse cooling apparatus and cooling method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004183196A JP4431789B2 (en) | 2004-06-22 | 2004-06-22 | Greenhouse cooling apparatus and cooling method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006006105A JP2006006105A (en) | 2006-01-12 |
| JP4431789B2 true JP4431789B2 (en) | 2010-03-17 |
Family
ID=35774020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004183196A Expired - Lifetime JP4431789B2 (en) | 2004-06-22 | 2004-06-22 | Greenhouse cooling apparatus and cooling method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4431789B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015194303A (en) * | 2014-03-31 | 2015-11-05 | 三機工業株式会社 | Thermal stratification type air conditioning system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5496874B2 (en) | 2007-04-04 | 2014-05-21 | ヴィジブル ワールド インコーポレイテッド | System and method for adjusting advertisements |
| JP5973219B2 (en) * | 2012-04-26 | 2016-08-23 | 鹿島建設株式会社 | Charged water particle sprayer |
| KR101418954B1 (en) | 2013-09-09 | 2014-07-16 | 김상덕 | Automatic temperature reduction apparatus for house |
| JP6675105B2 (en) * | 2016-09-16 | 2020-04-01 | パナソニックＩｐマネジメント株式会社 | Agricultural house |
| CN116138157A (en) * | 2022-06-08 | 2023-05-23 | 中国农业科学院都市农业研究所 | Planting system and method for controlling plant growth |
-
2004
- 2004-06-22 JP JP2004183196A patent/JP4431789B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015194303A (en) * | 2014-03-31 | 2015-11-05 | 三機工業株式会社 | Thermal stratification type air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006006105A (en) | 2006-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101710586B1 (en) | Mushroom cultivation system | |
| JP3853269B2 (en) | Plant cultivation or culture method and plant cultivation or culture environment apparatus | |
| JP2019526023A (en) | Floating humidifier with improved humidification | |
| AU2017377840B2 (en) | Air movement control and air source device for cultivation | |
| WO2013136459A1 (en) | Plant cultivating apparatus | |
| JP4431789B2 (en) | Greenhouse cooling apparatus and cooling method using the same | |
| JP5004728B2 (en) | Centrifugal spray device | |
| JP2016156565A (en) | Cooling device and cooling method of heat exchanger | |
| JP2014202438A (en) | Humidifier | |
| JP6857853B2 (en) | Mist generation system, agricultural greenhouse | |
| JP4480982B2 (en) | Ultrafine particle diffusion device | |
| JP2009192105A (en) | Centrifugal spraying humidification device | |
| US11540452B2 (en) | Air movement control and air source device for cultivation | |
| CN107155681A (en) | One kind embraces stem tea breeding apparatus | |
| JP2006003066A (en) | Spraying apparatus of humidifier | |
| CN201954701U (en) | Silencing humidifier | |
| JP2014082979A (en) | Plant cultivation apparatus and plant cultivation factory | |
| JP2012196164A (en) | Plant cultivation apparatus | |
| JP6712653B2 (en) | Vertical plant cultivation closed system | |
| CN110500911A (en) | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower | |
| JP2008275301A (en) | Humidifier for refrigerator and cold insulator | |
| JP2009270812A (en) | Centrifugal atomizer | |
| AU2015207691A1 (en) | Induction supply air terminal unit with increased air induction ratio, method of providing increased air induction ratio | |
| JP2006322669A (en) | Cooling tower | |
| JP6872717B2 (en) | Mist cooling system, agricultural greenhouse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070302 |
|
| A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20080819 |
|
| A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20080905 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081007 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081205 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090707 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090824 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091006 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091019 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20091201 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4431789 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| EXPY | Cancellation because of completion of term |