JPH06269223A - Method for reducing noise of air blower duct of warm air heater - Google Patents
Method for reducing noise of air blower duct of warm air heaterInfo
- Publication number
- JPH06269223A JPH06269223A JP5058670A JP5867093A JPH06269223A JP H06269223 A JPH06269223 A JP H06269223A JP 5058670 A JP5058670 A JP 5058670A JP 5867093 A JP5867093 A JP 5867093A JP H06269223 A JPH06269223 A JP H06269223A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- duct
- warm air
- air heater
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
【０００１】[0001]
【産業上の利用分野】本発明は施設園芸用温風暖房機の
送風ダクト騒音軽減方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reducing noise in a ventilation duct of a warm air heater for horticulture.
【０００２】[0002]
【従来の技術】一般に施設園芸用ハウス内の温度管理
は、室温によって温風暖房機の運転−停止制御を行って
おり、温風暖房機の起動により温風暖房機で作成された
温風が温風吐出口に接続された親ダクトから子ダクトを
経由してハウス内全域に供給されるようになっている。
上記ダクトにはポリダクトと呼ばれるプラスチックシー
ト製のダクトが用いられるのが普通で、送風ファンの起
動により、先ず親ダクトの基部が図８に示すようにその
径一杯に急激に膨らみ、このダクト径一杯に急激に膨ら
む状態が親ダクト基部から子ダクトの先端に向けて移動
していき、この際、“バリ・バリ”という高周波成分の
多い、耳障りな音が発生し、この音は、温風暖房機が起
動する度に発生するため運転−停止制御が頻繁な場合な
どは、地域住民に与える騒音公害は重大な問題になって
いる。上記騒音はダクトが急激に膨らむことにより発生
するものであるが、ダクトの長さは数十メートルから場
合によっては百メートル近くにも及んでおり、温風暖房
機の送風ファンが起動し送風が始まると、上記のように
急激に膨らむ部分が親ダクト基部から子ダクト先端に向
かって順次移動するため、急激に膨らむダクト各部にお
いて騒音が発生し、ダクト全体が膨らむまでに要する数
分の間“バリ・バリ”という騒音が連続することにな
る。2. Description of the Related Art Generally, temperature control in a greenhouse for greenhouses is performed by controlling the operation / stop of a warm air heater depending on the room temperature, and the warm air created by the warm air heater is activated by starting the warm air heater. The air is supplied from the parent duct connected to the hot air outlet to the entire inside of the house via the child duct.
Generally, a plastic sheet duct called a poly duct is used for the duct, and when the blower fan is activated, the base of the parent duct expands to its full diameter as shown in FIG. The rapidly expanding state moves from the base of the parent duct toward the tip of the child duct. At this time, a jarring sound with many high-frequency components called "burr" is generated. Since the noise is generated every time the machine is started, noise pollution to local residents becomes a serious problem when the operation-stop control is frequent. The above noise is generated due to the sudden expansion of the duct, but the length of the duct extends from several tens of meters to nearly 100 meters in some cases, and the blower fan of the warm air heater is activated to blow the air. When it starts, the abruptly swelling portion moves sequentially from the parent duct base to the child duct tip as described above, so noise is generated at each abruptly swelling duct, and it takes a few minutes for the entire duct to swell. There will be a continuous buzzing noise.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記問題点に
鑑みてなされたもので、温風暖房機の送風ファン起動時
のダクトの急激な膨脹を防止して、ダクトが急激に膨ら
むことに起因する騒音を低減させることを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and prevents a sudden expansion of the duct when the blower fan of the warm air heater is started, so that the duct expands rapidly. The purpose is to reduce the resulting noise.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に温風暖房機の送風ダクト騒音軽減方法では、ハウス内
に設置した温度センサの検出温度に基づいて起動−停止
を制御され、温度センサが設定温度より低い温度を検出
したときバーナと送風ファンを起動する温風暖房機にお
いて、送風ファンの起動に際して、ファン起動開始数秒
後に、一旦ファンモーターを数秒間停止させ、その後再
度始動させるように駆動制御するものである。In order to achieve the above object, in a method for reducing air duct noise of a warm air heater, start-stop is controlled based on the temperature detected by a temperature sensor installed in a house, and the temperature sensor In the warm air heater that activates the burner and blower fan when a temperature lower than the set temperature is detected, when the blower fan is started, the fan motor should be stopped for a few seconds and then restarted a few seconds after the fan starts. The drive is controlled.
【０００５】[0005]
【作用】以上のように構成した温風暖房機の送風ダクト
騒音軽減方法にあっては、送風ファンが起動して送風が
開始されると図７にで示される状態にあったダクトが
その基部から先端に向かって急激に膨れ始めの状態に
なるが、あまり先まで膨らまないうちにファンの駆動が
一旦停止する。従って、それより先へのダクトの急激な
膨脹は起きず、このファンが一時停止している間に、親
ダクト基部を一杯に膨らませていた温風の平均化及びフ
ァンの慣性による回転に伴って新たに送り込まれる温風
によりダクト全体が緩やかにある程度まで膨らみの状
態となる。そして、この状態でファンが再始動し、ダク
トはで示すように径一杯まで膨らむが、既にある程度
まで膨らんでいるため、騒音の発生は押さえられ、従来
に比べて４〜６ホーンの騒音軽減効果がある。In the method for reducing noise in the air duct heater of the hot air heater configured as described above, when the air blower fan is activated and air blow is started, the duct in the state shown in FIG. From that point, the fan begins to expand rapidly toward the tip, but the fan drive stops once before it expands too far. Therefore, there is no sudden expansion of the duct beyond that, and with the averaging of the warm air that inflated the base of the parent duct and the rotation due to the inertia of the fan while the fan was temporarily stopped. The hot air newly sent in causes the entire duct to gently expand to a certain extent. Then, the fan restarts in this state, and the duct expands to the full diameter as shown by, but since it has already expanded to a certain extent, the generation of noise is suppressed, and the noise reduction effect of 4 to 6 horns compared to the conventional case. There is.
【０００６】[0006]
【実施例】以下、実施例に基づいて本発明を更に詳細に
説明する。図中Ａは，ハウスＢ内に設置された温風暖房
機で、器体１内にバーナ２を備えた火炉３及び該火炉３
に連絡する熱交換器４を収容すると共に、吸気用の送風
ファン５を備える吸気口６を熱交換器４上方に、上記吸
気口６と熱交換器４を経由して連絡する温風吐出口７を
火炉３下方に夫々設けた従来周知の構造、形態を備え、
上記温風吐出口７にポリエチレンフィルム等のプラスチ
ックフイルム若しくはシート製のダクト８（以下ポリダ
クトという）を接続している。The present invention will be described in more detail based on the following examples. In the figure, A is a warm air heater installed in a house B, which is a furnace 3 having a burner 2 in a body 1 and the furnace 3.
A hot air discharge port for accommodating the heat exchanger 4 communicating with the heat exchanger 4 and for communicating the air intake port 6 provided with a blower fan 5 for intake above the heat exchanger 4 through the air intake port 6 and the heat exchanger 4. 7 is provided in the lower part of the furnace 3 and has a conventionally known structure and form,
A duct 8 (hereinafter referred to as a poly duct) made of a plastic film such as a polyethylene film or a sheet is connected to the hot air outlet 7.
【０００７】この温風暖房機Ａは、ハウスＢ内の適所に
設置した温度センサ９の検出温度に基づいて起動−停止
を制御部10で制御され、例えば、温度センサ９が設定温
度より低い温度を検出するとバーナ２が起動して燃焼を
開始すると共にこのバーナ燃焼開始と同時に送風ファン
５が起動して送風を開始し、温度センサ９が設定温度よ
り高い温度を検出するとバーナ２が燃焼を停止し、この
バーナ燃焼停止に若干の時間遅れをもって送風ファン５
を停止するようになっている。The hot air heater A is started / stopped by the control unit 10 on the basis of the temperature detected by the temperature sensor 9 installed at a proper place in the house B. For example, the temperature sensor 9 has a temperature lower than the set temperature. When the burner 2 is activated to start combustion, the blower fan 5 is activated at the same time as the combustion of the burner starts to start blowing air, and when the temperature sensor 9 detects a temperature higher than the set temperature, the burner 2 stops combustion. However, the blower fan 5 has a slight delay after the burner combustion is stopped.
Is supposed to stop.
【０００８】、本発明は斯る温風暖房機Ａの送風ファン
５の起動に際して、ファン５の起動開始直後に一時的に
ファン５を短時間停止して、送風を中断する送風中断時
間を設けることを特徴とする。According to the present invention, when the blower fan 5 of the warm air heater A is activated, the fan 5 is temporarily stopped for a short time immediately after the start of activation of the fan 5 to provide a blowout interruption time for interrupting the blown air. It is characterized by
【０００９】而して、本発明においては上記制御部10
は、図２に示すように温度センサ９が設定温度より低い
温度を検出するとスタートして所定のＴ1 時間経過によ
りタイムアップするＴ1 タイマ10a と、Ｔ1 タイマ10a
のタイムアップによりスタートして所定のＴ2 時間経過
によりタイムアップするＴ2 タイマ10b と、温度センサ
９が設定温度より高い温度を検出するとスタートして所
定のＴ3 時間経過によりタイムアップするＴ3 タイマ10
c と、温度センサ９が設定温度より低い温度を検出した
とき及びＴ2 タイマ10b のタイムアップにより送風ファ
ン５に駆動出力を発生し、Ｔ1 タイマ10a のタイムアッ
プ及びＴ3 タイマ10c のタイムアップにより駆動出力を
消滅するファン用駆動制御手段10d を備え、ファン５の
駆動を図３にしめすフローチャートのように制御する。
上記Ｔ1 、Ｔ2 時間は、例えば夫々５秒、Ｔ３時間は６
分である。タイムチャートを図４に示す。Thus, in the present invention, the control unit 10
As shown in FIG. 2, the T 1 timer 10a starts when the temperature sensor 9 detects a temperature lower than the set temperature and the time elapses after a lapse of a predetermined T 1 time, and the T 1 timer 10a.
And T 2 timer 10b for time up to start the time-up by a predetermined T 2 hours lapse of, T 3 to time up with the lapse after starting the temperature sensor 9 detects a temperature higher than the set temperature predetermined of T 3 hours Timer 10
c, and when the temperature sensor 9 detects a temperature lower than the set temperature and when the T 2 timer 10b times up, a drive output is generated for the blower fan 5, and the T 1 timer 10a and T 3 timer 10c times up. Thus, the fan drive control means 10d for extinguishing the drive output is provided, and the drive of the fan 5 is controlled as shown in the flowchart of FIG.
The above T 1 and T 2 times are, for example, 5 seconds and T3 time are 6 seconds, respectively.
Minutes. The time chart is shown in FIG.
【００１０】上記タイムチャートは送風ファン５及び吸
気口６が一つの温風暖房機の場合のものであるが、送風
ファン５及び吸気口６が夫々二つある温風暖房機の場合
には図２に示すタイムチャートのようになる。The above-mentioned time chart is for a warm air heater having one blower fan 5 and one intake port 6. However, in the case of a warm air heater having two blower fans 5 and two intake ports 6, the figure is shown. It becomes like the time chart shown in 2.
【００１１】また、この送風ファン５及び吸気口６を夫
々二つ備える温風暖房機の場合には、ファン起動電圧の
軽減を図るために、図６にしめすタイムチャートのよう
に両ファンのスタートにタイムラグを設け、１台目のフ
ァンをＴ1 時間運転し、Ｔ2時間停止した後の、該ファ
ンの再運転開始Ｔ4 時間（例えば５秒）後に２台目のフ
ァンを始動させるようにすることも可能である。In the case of a warm air heater having two blower fans 5 and two intake ports 6, both fans are started as shown in the time chart of FIG. 6 in order to reduce the fan starting voltage. A time lag is provided for the first fan to operate for 1 hour and then stop for 2 hours, and then restart the second fan for 4 hours (for example, 5 seconds) to start the second fan. It is also possible to do so.
【００１２】[0012]
【効果】本発明は以上のように構成したので、下記する
ような効果を奏する。 （１）．送風ファンの運転に際して、最初数秒運転した
後一旦運転を停止し、数秒後運転を再開するようにした
ので、最初の数秒間の運転と停止している数秒間の間に
最初の運転により吐出した温風と、停止後のファンの慣
性による回転に伴って新たに送り込まれる温風によりダ
クト全体を緩やかにある程度まで膨らませることがで
き、運転開始時の数秒間以外はダクトの急激な膨らみは
起きず、ダクトが急激に膨らむことに起因する“バリ・
バリ”という騒音を大幅に軽減することができる。 （２）．送風ファンの最初の数秒間の運転とその後の一
旦停止により、ダクトはある程度の膨らみまでは緩やか
に膨れるため、暖房器温風吐出口からの脱け落ちや、破
け、裂け等が発生し難く、寿命が長くなる。[Effect] Since the present invention is configured as described above, the following effects can be obtained. (1). During the operation of the blower fan, the operation was first stopped for a few seconds, then stopped once, and restarted after a few seconds, so the discharge was performed by the first operation during the first few seconds and during the few seconds during which it was stopped. The entire duct can be gently inflated to a certain extent by the warm air and the new hot air that is sent as the fan rotates due to inertia after stopping, and the duct suddenly expands except for a few seconds when the operation is started. Instead, "burrs caused by the sudden expansion of the duct.
The noise of “burrs” can be greatly reduced. (2) The duct blows up to a certain extent by the blow fan's operation for the first few seconds and then temporarily stopped. It does not easily fall off from the outlet, breaks, tears, etc. and has a long service life.
【図１】温風暖房機の概略構成を示す説明図。FIG. 1 is an explanatory diagram showing a schematic configuration of a warm air heater.
【図２】本発明温風暖房機の送風ダクト騒音軽減方法を
実施するための制御部の一実施例を示す機能ブロック
図。FIG. 2 is a functional block diagram showing an embodiment of a control unit for carrying out the air duct noise reduction method of the warm air heater of the present invention.
【図３】制御のフローチャート。FIG. 3 is a control flowchart.
【図４】タイムチャート。FIG. 4 is a time chart.
【図５】吸気口及び送風ファンを夫々二つ備える場合の
フローチャート。FIG. 5 is a flowchart in the case where two intake ports and two blower fans are provided.
【図６】他の実施例を示すフローチャート。FIG. 6 is a flowchart showing another embodiment.
【図７】ダクトの膨らむ状態を説明する説明図。FIG. 7 is an explanatory diagram illustrating a state where the duct is inflated.
【図８】従来の方法によるダクとの膨らむ状態を説明す
る説明図。FIG. 8 is an explanatory view for explaining a state of bulging with duck by a conventional method.
Ａ：送風ファン Ｂ：ハウス ２：バーナ ５：送風ファン ９：温度センサ A: Blower fan B: House 2: Burner 5: Blower fan 9: Temperature sensor
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年７月８日[Submission date] July 8, 1993
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１２】[0012]
【効果】本発明は以上のように構成したので、下記する
ような効果を奏する。 （１）．送風ファンの運転に際して、最初数秒運転した
後一旦運転を停止し、数秒後運転を再開するようにした
ので、最初の数秒間の運転と停止している数秒間の間に
最初の運転により吐出した温風と、停止後のファンの慣
性による回転に伴って新たに送り込まれる温風によりダ
クト全体を緩やかにある程度まで膨らませることがで
き、運転開始時の数秒間以外はダクトの急激な膨らみは
起きず、ダクトが急激に膨らむことに起因する“バリ・
バリ”という騒音を大幅に軽減することができる。 （２）．送風ファンの最初の数秒間の運転とその後の一
旦停止により、ダクトはある程度の膨らみまでは緩やか
に膨れるため、暖房機の温風吐出口からの脱け落ちや、
破け、裂け等が発生し難く、寿命が長くなる。[Effect] Since the present invention is configured as described above, the following effects can be obtained. (1). During the operation of the blower fan, the operation was first stopped for a few seconds, then stopped once, and restarted after a few seconds, so the discharge was performed by the first operation during the first few seconds and during the few seconds during which it was stopped. The entire duct can be gently inflated to a certain extent by the warm air and the new hot air that is sent as the fan rotates due to inertia after stopping, and the duct suddenly expands except for a few seconds when the operation is started. Instead, "burrs caused by the sudden expansion of the duct.
The noise of "burrs" can be greatly reduced. (2) The duct blows up to a certain extent by the blow fan's operation for the first few seconds and then temporarily stops, so the warm air from the heater is blown. Falling off from the discharge port,
Tear and tear are less likely to occur and the service life is extended.
Claims (1)
に基づいて起動−停止を制御され、温度センサが設定温
度より低い温度を検出したときバーナと送風ファンを起
動する温風暖房機において、送風ファンの起動に際し
て、ファン起動開始数秒後に、一旦ファンモーターを数
秒間停止させ、その後再度始動させるように送風ファン
の駆動を制御することを特徴とする温風暖房機の送風ダ
クト騒音軽減方法。1. A hot-air heater in which start-stop is controlled based on a temperature detected by a temperature sensor installed in a house, and a burner and a blower fan are started when the temperature sensor detects a temperature lower than a set temperature, A method for reducing noise in a ventilation duct of a warm air heater, characterized in that, when the blower fan is started, the fan motor is stopped so that the fan motor is stopped for a few seconds and then restarted after the start of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5058670A JPH06269223A (en) | 1993-03-18 | 1993-03-18 | Method for reducing noise of air blower duct of warm air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5058670A JPH06269223A (en) | 1993-03-18 | 1993-03-18 | Method for reducing noise of air blower duct of warm air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06269223A true JPH06269223A (en) | 1994-09-27 |
Family
ID=13091024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5058670A Pending JPH06269223A (en) | 1993-03-18 | 1993-03-18 | Method for reducing noise of air blower duct of warm air heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06269223A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010029153A (en) * | 2008-07-31 | 2010-02-12 | Konai Denki Kogyosho:Kk | Heater for protected horticulture |
| JP2011089716A (en) * | 2009-10-23 | 2011-05-06 | Takasago Thermal Eng Co Ltd | Air conditioning system and hood device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432050U (en) * | 1990-07-12 | 1992-03-16 |
-
1993
- 1993-03-18 JP JP5058670A patent/JPH06269223A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432050U (en) * | 1990-07-12 | 1992-03-16 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010029153A (en) * | 2008-07-31 | 2010-02-12 | Konai Denki Kogyosho:Kk | Heater for protected horticulture |
| JP2011089716A (en) * | 2009-10-23 | 2011-05-06 | Takasago Thermal Eng Co Ltd | Air conditioning system and hood device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4558152B2 (en) | Room pressure control method in advanced clean facility | |
| JPH0674536A (en) | Method of controlling air-conditioner | |
| JPH06269223A (en) | Method for reducing noise of air blower duct of warm air heater | |
| JP4134393B2 (en) | Control method of air conditioner | |
| KR960029733A (en) | Hot air heater | |
| JPH07332774A (en) | Air conditioner | |
| JP4344461B2 (en) | Hot air heater for horticultural house | |
| JP2890996B2 (en) | Hot air heater | |
| JPH11264599A (en) | Method for controlling air conditioner | |
| JPH10246518A (en) | Air conditioner | |
| JP3133624U (en) | Blower start control device | |
| JP3158889B2 (en) | Heat pump type air conditioner | |
| JPH0650610A (en) | Operation managing method for hot air heating and forced heating device | |
| JPH1163521A (en) | Hot water warmer | |
| KR200315189Y1 (en) | Automatic temperature control unit for hot air generator | |
| JPS6155542A (en) | Control device for air conditioner | |
| JP3177718B2 (en) | Air conditioning controller | |
| JP2005140473A (en) | Bathroom ventilating/drying device | |
| JP2763565B2 (en) | Hot air heater | |
| JP2558927B2 (en) | Control device for hot air heater | |
| JPH10148383A (en) | Air conditioner | |
| JP2000170534A (en) | Cooling fan controller for vehicle | |
| JPH1082544A (en) | Method of controlling operation sound of indoor unit of heat pump type air conditioner and controller | |
| JP2001165432A (en) | Method and device for combustion control in combustor | |
| JPS5946442A (en) | Controlling method of air conditioner |