JPH031086A - Malfunction preventing device for grain dryer - Google Patents
Malfunction preventing device for grain dryerInfo
- Publication number
- JPH031086A JPH031086A JP13542789A JP13542789A JPH031086A JP H031086 A JPH031086 A JP H031086A JP 13542789 A JP13542789 A JP 13542789A JP 13542789 A JP13542789 A JP 13542789A JP H031086 A JPH031086 A JP H031086A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- pressure
- exhaust
- air
- dryer
- 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
- 230000007257 malfunction Effects 0.000 title claims abstract description 13
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 abstract description 8
- 230000001939 inductive effect Effects 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000010981 drying operation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発朗は、複数の乾燥機を備え、各乾燥機の吸引側に吸
引排風機を設けると共に、その吸引排風側を共通の集中
排風路に接続し、各乾燥機には吸引風の圧力の正常、異
常によって作動する風圧スイッチを設けてなるものにお
いて、各乾燥機の作業休止中に、その風圧スイッチが集
中吸引排風による吸引圧力で誤動作を起こした場合でも
、警報が誤って発せられるのを未然に防止するための穀
物乾燥機における誤動作防止！Ｉ置に間する。Detailed Description of the Invention [Industrial Application Field This invention is equipped with a plurality of dryers, each dryer is provided with a suction exhaust fan on the suction side, and the suction and exhaust side is connected to a common centralized exhaust. In a dryer connected to the air path, each dryer is equipped with a wind pressure switch that is activated depending on whether the suction air pressure is normal or abnormal, and when each dryer is not working, the wind pressure switch switches off the suction from the concentrated suction and exhaust air. Malfunction prevention in grain dryers to prevent alarms from being issued erroneously even when malfunctions occur due to pressure! Pause at I.
［従来の技術］
従来、この種の穀物屹Ｓ機においては、乾燥作業中に吸
引排風機の異常によって吸引風の圧力が急低下した場合
に、燃焼系の安全を確保するため、吸引風の圧力によっ
て作動する風圧スイッチが備えられており、このことは
、ここに例示するまでもなく広く知られており、かつ実
用に供されてぃ［発明が解決しようとするｉ！！ ］
ところで、複数の乾燥機を備え、各乾燥機の吸引排風側
に吸引１１ｊ凰機を設けると共に、その吸引排風側を共
通の集中排風路に接続し、各乾燥機には吸引風の圧力の
正常、異常によって作動する風圧スイッチを設けてなる
穀物の共同乾燥施設等においては、各乾燥機を乾燥作業
が開始できる状態（電源を切らない状態）で乾燥作業を
休止する場合があるが、この状態であっても、当該乾燥
機は集中排風路からの吸引作用を受けているので、その
吸引作用によって風圧スイッチが誤動作を起こし、異常
状態でないにもかかわらず、警報が発せられることがあ
る。そして、その不要な警報を止めるには当該乾燥機の
電源をいちいち切らなければならず、煩わしい操作を余
儀なくされているのが実状であった。[Prior Art] Conventionally, in this type of grain S-type machine, when the pressure of the suction air suddenly drops due to an abnormality in the suction/exhaust fan during drying work, in order to ensure the safety of the combustion system, the suction air is A wind pressure switch operated by pressure is provided, which is widely known and is in practical use without being illustrated here. ! ] By the way, if a plurality of dryers are provided, each dryer is provided with a suction 11j fan on the suction and exhaust side, and the suction and exhaust sides are connected to a common central exhaust passage, so that each dryer has suction and exhaust air. In communal grain drying facilities that are equipped with wind pressure switches that operate depending on whether the pressure is normal or abnormal, drying operations may be suspended while each dryer is ready to start drying (without turning off the power). However, even in this state, the dryer is being subjected to suction from the central air exhaust duct, and this suction can cause the wind pressure switch to malfunction, causing an alarm to be issued even though there is no abnormality. Sometimes. In order to stop the unnecessary alarm, it is necessary to turn off the power to the dryer one by one, which is a cumbersome operation.
本発明は、従来の技術における上記の如き問題点に鑑み
てなされたものであって、その目的とするところは、各
乾燥機の乾燥作業の休止中において、集中排風路からの
吸引作用で、たとえ風圧スイッチが誤動作を起こしても
、不要な警報が発せられるのを未然に防止し、乾燥作業
の休止中の乾燥機の電源をいちいち切る煩わしい操作を
全く不要ならしめる詐りか、異常時の警報の信頼性を著
しく向上させろことができる穀物乾燥機における誤動作
防止装置を提供しようとするものである。The present invention has been made in view of the above-mentioned problems in the conventional technology, and its purpose is to eliminate the suction action from the central exhaust duct during the suspension of the drying operation of each dryer. , even if the wind pressure switch malfunctions, it will prevent unnecessary alarms from being issued and eliminate the need for the troublesome operation of turning off the power to the dryer every time the drying process is stopped. It is an object of the present invention to provide a malfunction prevention device for a grain dryer that can significantly improve the reliability of alarms.
［ｙ、題を解決するための手段］
上記目的を達成するため、本発明に係る穀物乾燥機にお
ける誤動作防止装置は、複数の乾燥機を備え、各乾燥機
の吸引排風側に吸引排風機を設けると共に、その吸引排
風側を共通の集中排風路に接続し、各乾燥機には吸引風
の圧力の正常、異常によって作動する風圧スイッチを設
けてなるものにおいて、各乾燥機の吸引排風側には、吸
引排風機による排風の圧力を検出する圧力センサを設け
、この圧力センサによる検出圧力の差が急低下したこと
を条件に警報を発する安全装置を備えてなるものであり
、さらに、各乾燥機の排風側には、吸引排風機の吸引側
と吹出側を連通ずる空気通路を形成し、この空気通路の
途中に圧力センサを設けた構成としたものである。[Y. Means for Solving the Problem] In order to achieve the above object, the malfunction prevention device for a grain dryer according to the present invention includes a plurality of dryers, and a suction exhaust machine is installed on the suction exhaust side of each dryer. In addition, the suction and exhaust side of each dryer is connected to a common centralized air exhaust path, and each dryer is equipped with a wind pressure switch that is activated depending on whether the suction air pressure is normal or abnormal. The exhaust side is equipped with a pressure sensor that detects the pressure of the exhaust air from the suction exhaust fan, and is equipped with a safety device that issues an alarm if the difference in pressure detected by this pressure sensor suddenly drops. Furthermore, an air passage is formed on the exhaust side of each dryer to communicate the suction side and the blowout side of the suction exhaust machine, and a pressure sensor is provided in the middle of this air passage.
［作 用 ］
各乾燥機において、穀物の乾燥中は、その吸引１作風機
による吸引作用によって、乾燥機中を通過した乾燥排風
が吸引排出され、さらに集中吸引排風作用によって集中
排風路に排出される。そして、この作動が正常に行われ
ている状態では、吸引作用によって風圧スイッチが作動
し、燃焼系に燃料の供給が行われ、吸引排風機による排
風の圧力を検出する圧力センサは、高い圧力を検出して
いる。[Function] In each dryer, while grain is drying, the drying air that has passed through the dryer is sucked and discharged by the suction action of the suction 1 fan, and furthermore, the concentrated air exhaust duct is is discharged. When this operation is performed normally, the suction action activates the wind pressure switch, fuel is supplied to the combustion system, and the pressure sensor that detects the pressure of the exhaust air from the suction exhaust fan detects a high pressure. is being detected.
ところで、上記乾燥作業中において、何等かの原因で吸
引排風機の回転が停止したり、その回転数が極度に落ち
るなど、万一異常が生じた場合には、吸引排風機による
圧力の差が急低下したことの条件が満たされるので、警
報が発せられる。By the way, if an abnormality occurs during the drying process, such as the rotation of the suction fan stopping for some reason or the number of rotations dropping extremely, the difference in pressure caused by the suction fan will cause the Since the conditions for a sudden drop are met, an alarm is issued.
一方、各乾燥機を乾燥作業の休止状態とした場合には、
当該乾燥機の乾燥排風による吸引圧力が消失するので、
圧力センサによる検出圧力は零ないしは掻く小さい値で
ある。したがって、乾燥作業の休止中において、集中排
風路からの吸引作用を受けて風圧スイッチが誤動作を起
こしても、圧力センサでは検出圧力の差が急低下したこ
との検出が行われないので、警報を発する条件が満たさ
れず、不要な警報が発せられることはない。On the other hand, if each dryer is placed in a suspended state for drying,
Since the suction pressure from the drying exhaust air of the dryer disappears,
The pressure detected by the pressure sensor is zero or a very small value. Therefore, even if the air pressure switch malfunctions due to suction from the central exhaust air channel during a pause in drying work, the pressure sensor will not detect a sudden drop in the difference in detected pressure, so an alarm will be issued. An unnecessary alarm will not be issued because the conditions for issuing the alarm are not met.
吸引排風機による排風の圧力を検出するために、吸引ｔ
＃風機の吸引側と吹出例を連通ずる空気通路を形成し、
この空気通路の途中に圧力センサを設けた構成としたも
のでは、吸引排風機による吸引側と吹出側の圧力の平衡
、不平衡で圧力の差が検出されるので、圧力差の検出精
度が向上し、ｗ報の信頼性が著しく向上する。In order to detect the pressure of the exhaust air by the suction exhaust fan, the suction t
# Form an air passageway that communicates the suction side of the fan with the blowout side,
With a configuration in which a pressure sensor is installed in the middle of this air passage, the pressure difference is detected when the pressure on the suction side and the blowout side by the suction exhaust fan is balanced or unbalanced, so the detection accuracy of the pressure difference is improved. This will significantly improve the reliability of news reports.
［実 施 例 ］ 実施例について図面を参照して説明する。[Example ] Examples will be described with reference to the drawings.
図面には、複数の乾燥機を備えた穀物の共同乾燥施設が
例示されている。The drawing illustrates a communal grain drying facility with multiple dryers.
第１図において、１は、複数の乾燥機であって、各乾燥
機１は、燃料の燃焼による熱源を備え、穀物をＶ％風に
よって通風乾燥するものである。各乾燥機１の吸引排風
側２には吸引排風機３が設けられており、かつ集中排風
路４にそれぞれ接続されている。この集中排風ｖＭ４は
集中排塵室５に接続され、その接続部位には集中吸引排
風機１機６が設けられている。上記各乾燥機ｌには、吸
引排風の吸引圧力が正常か、異常かによって作動する風
圧スイッチ７が備えられている。この風圧スイッチ７は
、乾燥作業中に吸引排風機３の異常等によって吸引風の
圧力が急速に低下した場合に、燃焼系の安全を確保する
ためのものである。In FIG. 1, reference numeral 1 denotes a plurality of dryers, each of which is equipped with a heat source by combustion of fuel, and is used to dry grain with V% air. A suction/exhaust fan 3 is provided on the suction/exhaust side 2 of each dryer 1, and is connected to a concentrated air exhaust path 4, respectively. This concentrated exhaust air vM4 is connected to a concentrated dust exhaust chamber 5, and a concentrated suction exhaust fan 6 is provided at the connection site. Each of the dryers 1 is equipped with a wind pressure switch 7 that operates depending on whether the suction pressure of suction and exhaust air is normal or abnormal. This wind pressure switch 7 is for ensuring the safety of the combustion system when the pressure of the suction air rapidly decreases due to an abnormality in the suction/exhaust fan 3 during drying work.
上記各乾燥機ｌの吸引排風側には、第２図に示すように
、吸引排風機３の吸引側と吹出側を連通ずる空気通路８
が形成されており、この空気通路８の途中には、圧力の
差を検出する圧力センサ９が介在されていて、圧力セン
サ９は増幅口ｖＭｌＯを経て中央処理装置ＩＩに接続さ
れている。１２は、警報ランプ、１３は、警報ブザーで
あって、中央処理装置口による制御によって動作せしめ
るものである。中央処理装置ＩＩは、前記風圧スイッチ
７からの動作信号を入力させて、安全装置を構成するも
のである。On the suction and exhaust side of each of the dryers 1, as shown in FIG.
is formed, and a pressure sensor 9 for detecting a pressure difference is interposed in the middle of this air passage 8, and the pressure sensor 9 is connected to the central processing unit II via an amplification port vMlO. Reference numeral 12 indicates an alarm lamp, and 13 indicates an alarm buzzer, which are operated under control from the central processing unit. The central processing unit II receives the operation signal from the wind pressure switch 7 and constitutes a safety device.
なお、吸引排風機３による圧力の差は、その吹出側また
は吸引側に圧力センサ９を設けて検出するようにしても
よい。Note that the difference in pressure caused by the suction/exhaust fan 3 may be detected by providing a pressure sensor 9 on the blowing side or the suction side.
以上のように構成された装置において、各乾燥機１にお
いて、穀物の乾燥中は、その吸引排ｉｎ３による吸引作
用によって、乾燥機ｌ中を通過した（１２燥排風が吸引
ｆＪＦ出され、さらに集中吸引排風機６による集中吸引
排風作用によって集中吸引排風路４に排出される。そし
て、この作動が正常に行われている状態では、吸引作用
によって風圧スイッチ７が作動し、燃焼系に燃料の供給
が行われ、かつ吸引排風機３の吸引側と吹出側の圧力の
差が大であるから、排風の圧力を検出している。In the apparatus configured as described above, in each dryer 1, during drying of grains, the suction action of the suction exhaust in 3 causes the drying exhaust air to pass through the dryer 1 (12). The concentrated suction and exhaust air is discharged into the concentrated suction and exhaust duct 4 by the concentrated suction and exhaust action of the concentrated suction and exhaust fan 6. When this operation is performed normally, the suction action activates the wind pressure switch 7 and the combustion system is Since fuel is being supplied and the difference in pressure between the suction side and the blowout side of the suction/exhaust fan 3 is large, the pressure of the exhaust air is detected.
ところで、上記乾燥作業中において、例えば、ベルトが
切れたり、外れたりして吸引排風機３の回転が停止した
り、また、モータが故障してその回転数が極度に落ちる
など、万一異常が生した場合には、第３図に示すように
、吸引排風機３の吸引例と吹出側の圧力差が急に消失し
、検出レベルａを越えて圧力センサ９による検出圧力の
差が急低下したことの条件が満たされるので、警報が発
せられる。By the way, during the above-mentioned drying work, in the unlikely event that an abnormality occurs, for example, the belt breaks or comes off and the rotation of the suction/exhaust fan 3 stops, or the motor breaks down and its rotational speed drops extremely. When the pressure difference between the suction side and the blowout side of the suction exhaust fan 3 suddenly disappears, the difference in pressure detected by the pressure sensor 9 suddenly decreases beyond the detection level a, as shown in Fig. 3. Since the conditions for what has happened are met, an alarm is issued.
一方、各乾燥機！を乾燥作業の休止状態とした場合には
、当該乾燥機１の吸引排風機３による吸引圧力が消失し
続けるので、圧力センサ９による検出圧力は零ないし掻
く小さい値である。したがって、乾燥作業の休止中にお
いて、集中排風路４からの吸引作用を受けて風圧スイッ
チ７が誤動作を起こしても、圧力センサ９では検出圧力
の差が急低下したことの検出が行われないので、警報ラ
ンプ１２および警報ブザ−Ｉ３が作動する条件が満たさ
れず、不要な警報が発せられることはない。Meanwhile, each dryer! When the drying operation is suspended, the suction pressure by the suction exhaust fan 3 of the dryer 1 continues to disappear, so the pressure detected by the pressure sensor 9 is zero or a very small value. Therefore, even if the wind pressure switch 7 malfunctions due to the suction action from the central exhaust air passage 4 during a pause in the drying operation, the pressure sensor 9 will not detect a sudden drop in the difference in detected pressure. Therefore, the conditions for operating the alarm lamp 12 and the alarm buzzer I3 are not satisfied, and unnecessary alarms are not issued.
〔発明の効果］
本発明は、前記のように構成されているので、以下に記
載する効果を奏する。[Effects of the Invention] Since the present invention is configured as described above, it produces the effects described below.
すなわち、本発明においては、各乾燥機の吸引排風側に
は、吸引排風機による排風の圧力を検出する圧力センサ
を設け、この圧力センサによる検出圧力の差が急低下し
たことを条件に警報を発する安全装置を備えているので
、各乾燥機の乾燥作業の休止中において、集中排風路か
らの吸引作用で、たとえ風圧スイッチが′誤動作を起こ
しても、不要な警報が発せられるのを未然に防止して、
乾燥作業の休止中における乾燥機の電源をいちいち切る
煩わしい操作を全く不要ならしめる詐りか、異常時の警
報の信頼性を著しく向上させることができる。That is, in the present invention, a pressure sensor is provided on the suction/exhaust side of each dryer to detect the pressure of the exhaust air from the suction/exhaust machine, and if the difference in pressure detected by this pressure sensor has suddenly decreased, the Equipped with a safety device that issues an alarm, even if the air pressure switch malfunctions due to the suction effect from the central exhaust duct while each dryer is not drying, unnecessary alarms will not be issued. By preventing the
Not only does this eliminate the need for the troublesome operation of turning off the power to the dryer every time the drying operation is stopped, but it also significantly improves the reliability of alarms in the event of an abnormality.
さらに、各乾燥機のＪＪＦ風側に、吸引ｊ作風機の吸引
側と吹出側を連通ずる空気通路を形成し、この空気通路
の途中に圧力センサを設けたものでは、特に、吸引排風
機による吸引側と吹出側の圧力の平衡、不平衡で圧力の
差が検出されるので、圧力差の検出精度を向上させるこ
とができ、本発明の効果を一段と向上させることができ
る。Furthermore, on the JJF wind side of each dryer, an air passage is formed that communicates the suction side and the blowing side of the suction fan, and a pressure sensor is installed in the middle of this air passage. Since the pressure difference is detected when the pressures on the suction side and the blowout side are balanced or unbalanced, the detection accuracy of the pressure difference can be improved, and the effects of the present invention can be further improved.
第１図は、本発明に係る装置の一実施例を示す穀物の共
同乾燥施設の構成説明図、第２図は、同上要部の構成説
明図、第３図は、圧力センサによる検出特性を示す説明
図である。FIG. 1 is an explanatory diagram of the configuration of a grain communal drying facility showing one embodiment of the apparatus according to the present invention, FIG. 2 is an explanatory diagram of the configuration of the main parts of the same, and FIG. FIG.
Claims (1)
排風機を設けると共に、その吸引排風側を共通の集中排
風路に接続し、各乾燥機には吸引風の圧力の正常、異常
によって作動する風圧スイッチを設けてなるものにおい
て、各乾燥機の吸引排風側には、吸引排風機による排風
の圧力を検出する圧力センサを設け、この圧力センサに
よる検出圧力の差が急低下したことを条件に警報を発す
る安全装置を備えた乾燥機における誤動作防止装置。 ２、各乾燥機の排風側には、吸引排風機の吸引側と吹出
側を連通する空気通路を形成し、この空気通路の途中に
圧力センサを設けた請求項１記載の穀物乾燥機における
誤動作防止装置。[Scope of Claims] 1. A plurality of dryers are provided, each dryer is provided with a suction/exhaust fan on the suction/exhaust side, and the suction/exhaust side is connected to a common central exhaust passage, so that each dryer The dryer is equipped with a wind pressure switch that operates depending on whether the suction air pressure is normal or abnormal, and a pressure sensor is installed on the suction/exhaust side of each dryer to detect the pressure of the exhaust air from the suction/exhaust machine. A malfunction prevention device for dryers equipped with a safety device that issues an alarm when the difference in pressure detected by a pressure sensor suddenly drops. 2. The grain dryer according to claim 1, wherein an air passage is formed on the exhaust side of each dryer to communicate the suction side and the blowout side of the suction exhaust machine, and a pressure sensor is provided in the middle of this air passage. Malfunction prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13542789A JP2810700B2 (en) | 1989-05-29 | 1989-05-29 | Malfunction prevention device in grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13542789A JP2810700B2 (en) | 1989-05-29 | 1989-05-29 | Malfunction prevention device in grain dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH031086A true JPH031086A (en) | 1991-01-07 |
| JP2810700B2 JP2810700B2 (en) | 1998-10-15 |
Family
ID=15151477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13542789A Expired - Lifetime JP2810700B2 (en) | 1989-05-29 | 1989-05-29 | Malfunction prevention device in grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2810700B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018151122A (en) * | 2017-03-13 | 2018-09-27 | 井関農機株式会社 | Grain dryer |
-
1989
- 1989-05-29 JP JP13542789A patent/JP2810700B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018151122A (en) * | 2017-03-13 | 2018-09-27 | 井関農機株式会社 | Grain dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2810700B2 (en) | 1998-10-15 |
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