JP2804149B2 - Pump device - Google Patents
Pump deviceInfo
- Publication number
- JP2804149B2 JP2804149B2 JP2080760A JP8076090A JP2804149B2 JP 2804149 B2 JP2804149 B2 JP 2804149B2 JP 2080760 A JP2080760 A JP 2080760A JP 8076090 A JP8076090 A JP 8076090A JP 2804149 B2 JP2804149 B2 JP 2804149B2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- current
- pressure
- sensor
- pressure sensor
- 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 - Fee Related
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、水栓の開閉に伴い自動的に運転開始運転停
止または、運転開始，並列運転開始，並列運転解除，運
転停止などをおこなうポンプ装置に係り、確実に空運転
をとらえて、保護するとともに、メンテナンスを迅速に
行なえるポンプ装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pump that automatically starts or stops operation, or starts operation, parallel operation start, parallel operation cancellation, operation stop, etc., with opening and closing of a faucet. The present invention relates to a pump device capable of reliably capturing and protecting idle operation and performing maintenance quickly.
従来のポンプ装置は、圧力スイツチ又は特公平１−29
998号に記載している圧力スイツチと流用スイツチの組
合せで運転開始や運転停止をしているものが一般的であ
る。従つて、ポンプ装置と受水槽を接続している吸込管
側から、空気を吸い込んだ状態で運転する。いわゆる空
運転の場合は、圧力スイツチ開圧まで達しないため連続
に運転され、熱による部分劣化，コンデンサパンク，羽
根車と案内羽根の溶着，メカニカルシールの摩耗等、致
命的な問題が生じるものである。Conventional pump devices include a pressure switch or a Japanese Patent Publication No. 1-29.
Generally, the operation is started or stopped by a combination of a pressure switch and a diversion switch described in Japanese Patent No. 998. Therefore, the operation is performed with air being sucked in from the suction pipe side connecting the pump device and the water receiving tank. In the case of the so-called idle operation, since the pressure switch does not reach the opening pressure, it is operated continuously, causing fatal problems such as partial deterioration due to heat, condenser puncture, welding of the impeller and the guide blade, and wear of the mechanical seal. is there.
本発明の目的は、上記問題点に鑑みてなされたもの
で、ポンプ装置が空運転した際、その現象を適確にとら
えて、強制的に停止させて致命的な問題となる前に保護
し、かつ、その旨を表示して迅速にメンテナンスを行な
うことにある。An object of the present invention has been made in view of the above problems, and when a pump device runs idle, the phenomenon is properly captured, and the pump device is forcibly stopped and protected before a fatal problem occurs. In addition, the maintenance is promptly performed by displaying the fact.
上記目的は、ポンプ装置内の圧力を大略直線的に把握
可能な圧力センサーとポンプの運転電流を把握可能な電
流センサーを備え、電流センサーと圧力センサーからの
情報で、正常運転時と空運転時を判定し、空運転時には
その旨表示することによつて、達成される。The above purpose is equipped with a pressure sensor that can grasp the pressure in the pump device in a substantially linear manner and a current sensor that can grasp the operating current of the pump.The information from the current sensor and the pressure sensor is used for normal operation and idle operation. This is achieved by judging at the time of idling and displaying that fact during idle operation.
本発明によれば、圧力センサー及び電流センサーの双
方の情報に基づいてモーターを制御するようにしている
ので、ポンプの空運転状態を正確に判断して停止するこ
とができる。According to the present invention, since the motor is controlled based on the information of both the pressure sensor and the current sensor, the idle operation state of the pump can be accurately determined and stopped.
以下、本発明を図面に基づき詳述する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
ポンプ装置の共通ベツト１上には、２台のポンプヘツ
ド2,3が取り付けられ、それぞれのポンプヘツド2,3は吸
込管4,5を介して水槽６に接続されている。ポンプヘツ
ド2,3の下流側は、合流管7,吐出管８を介してそれぞれ
の水栓９に接続されている。合流管７の上部には、圧力
センサー10,圧力タンク11が取り付けられている。また
共通ヘツド１上には、制御箱12が取り付けられている。Two pump heads 2 and 3 are mounted on a common bed 1 of the pump device, and each of the pump heads 2 and 3 is connected to a water tank 6 via suction pipes 4 and 5. The downstream sides of the pump heads 2 and 3 are connected to respective faucets 9 via a junction pipe 7 and a discharge pipe 8. A pressure sensor 10 and a pressure tank 11 are attached to the upper part of the junction pipe 7. A control box 12 is mounted on the common head 1.
制御箱12表面には、自動−切−手動の切換えを行なう
切換スイツチ13と、１号機−２号機−交互運転などの選
択が外部から行なえる選択スイツチ14と、電源が供給さ
れているか否かを表示する電源ランプ15及び１号機,2号
機つまりどちらのポンプヘツド2,3が運転しているかを
表示する運転ランプ16とが取り付けられている。さら
に、異常時には、その旨表示する数字表示素子17が見え
る位置に透明窓18が設けられている。On the surface of the control box 12, a switching switch 13 for performing an automatic-off-manual switching, a selection switch 14 for externally selecting a unit 1, a unit 2 and an alternate operation, and whether or not power is supplied. And a running lamp 16 for displaying which pump heads 2, 3 are operating, ie, the first and second units, ie, which pump heads 2 and 3 are operating. Further, at the time of abnormality, a transparent window 18 is provided at a position where the numeric display element 17 for indicating the abnormality can be seen.
制御箱12内には、第３図に示すように、電流19とモー
ター20とを結線する端子台21,モーター20の回路を開閉
するスイツチ22および各種入力により判定して出力する
マイコン（図示せず）が搭載されたマイコン付基板23な
どが備えられている。As shown in FIG. 3, the control box 12 has a terminal block 21 for connecting the current 19 and the motor 20, a switch 22 for opening and closing the circuit of the motor 20, and a microcomputer (not shown) for judging and outputting based on various inputs. ) Is provided with a microcomputer-equipped substrate 23 and the like.
マイコン付基板23への入力情報としては、ポンプ内圧
力を数式化又は直線の組み合せで読み取れる値を出力す
る圧力センサー24,ポンプの運転状況をモーター20に流
れる電流を介して入力する電流センサー25などがあり、
マイコン付基板23からの出力情報としては、モーター20
の回路を開閉するスイツチ22の入切や、ポンプ内圧力を
圧力センサーからの情報に基づいて、数字表示素子17を
常時表示させるものなどがある。As input information to the microcomputer-equipped substrate 23, there are a pressure sensor 24 that outputs a value that can be read by formulating the pressure in the pump or by a combination of straight lines, a current sensor 25 that inputs the operating state of the pump via a current flowing through the motor 20, and the like. There is
As output information from the board 23 with the microcomputer, the motor 20
And the switch 22 that opens and closes the circuit, and the number display element 17 is constantly displayed based on information from the pressure sensor.
第４図に示す、ポンプ装置の水量−圧力，電流特性線
図をもとに運転内容を詳述する。The operation will be described in detail with reference to a water amount-pressure and current characteristic diagram of the pump device shown in FIG.
水栓９が開くことにより、ポンプ内圧は徐々に低下す
る。HON点に達すると圧力センサー24を介してマイコン
付基板23に入力され、ポンプ運転命令が出てスイツチ22
が入りポンプは給水を開始する水栓９が閉じられてポン
プ内圧が上昇してHOFFに達すると同様にしてポンプ停止
命令が出て、ポンプは停止するものである。When the faucet 9 opens, the internal pressure of the pump gradually decreases. When the H ON point is reached, it is input to the board with microcomputer 23 via the pressure sensor 24, a pump operation command is issued, and the switch 22
When the water faucet 9 for starting water supply is closed and the internal pressure of the pump rises to reach H OFF , a pump stop command is issued in the same manner and the pump is stopped.
なお、HOFF以下の水量が使われている時には、ポンプ
内圧がHON−HOFFを繰り返すために、ハツチング現象と
なる。これを防止するため、HONに達して運転を開始し
た点から又は、HOFFに達してから遅延タイマーを動作さ
せるのが一般的である。When a water amount equal to or less than H OFF is used, a hatching phenomenon occurs because the pump internal pressure repeats H ON -H OFF . In order to prevent this, it is common to operate the delay timer from the point where the operation is started after reaching H ON or after reaching H OFF .
従つて、通常は、締切圧力HC点で停止していることに
なる。Slave connexion, will usually be stopped in the shut-off pressure H C point.
以上のポンプ装置が何らかの原因で吸込管4,5の途中
から空気を吸い込んだ場合や、水槽６が減水して空気を
吸い込んだ場合などは、HOFFに達し得ない為、空運転状
態で連続で運転されて異常な高温となり羽根車と案内羽
根の溶着，メカニカルシールの摩耗，部品劣化，コンデ
ンサパンク等々致命的な問題を引き起こすことになる。When the above pump device sucks air from the middle of the suction pipes 4 and 5 for some reason, or when the water tank 6 reduces water and sucks air, it cannot reach H OFF. If the operation is performed at an abnormally high temperature, fatal problems such as welding of the impeller and the guide blades, wear of the mechanical seal, deterioration of parts, and capacitor puncture will be caused.
空運転時の電流IAと締切運転時の電流ICの関係がIA≪
ICであれば、電流値のみで空運転を容易に判別可能であ
るが、IA≒IC、又はIA＞ICの場合には判別不可能とな
る。しかし、これに圧力センサー情報を加えることによ
り、確実に空運転を把握することができるものである。Idling at the relationship between the current I A and the deadline operation at the time of the current I C of I A «
If I C , it is possible to easily determine the idle operation only by the current value, but it is not possible to determine if I A ≒ I C or if I A > I C. However, by adding the pressure sensor information to this, it is possible to reliably grasp the idle operation.
つまり、空運転時の電流IAより若干大きい電流値Ｉに
て運転する時の圧力HA以下で運転が継続すれば空運転で
ある。同様に、Ｉ以下の電流で運転し、かつ、ポンプ停
止圧力HOFF以下で運転していれば空運転である。以上の
条件をマイコンに入力しておくことにより、その条件に
一致した際は、空運転である旨を数値表示素子17で表示
して、その現象を生じたポンプを強制的に停止させ、正
常機のみの運転に自動的に切換えて給水するもので、前
記のポンプの致命的な問題を未然に防止し、給水を継続
しながら容易にメンテナンスを促すことが可能となる。That is, it is idle operation if continued operation below a pressure H A when operated at slightly higher current value I from the current I A of the idle operation. Similarly, if the operation is performed at a current equal to or less than I and the operation is performed at a pump stop pressure H OFF or less, the operation is idle. By inputting the above conditions to the microcomputer, when the conditions are met, the idle display is displayed on the numerical display element 17, and the pump that caused the phenomenon is forcibly stopped, and The water supply is performed by automatically switching to the operation of only the machine, and the fatal problem of the pump can be prevented beforehand, and the maintenance can be easily promoted while the water supply is continued.
また、通常一般に使用されているポンプ、すなわち、
ポンプヘツド１台のみ有するポンプに本発明で適用可能
なことももちろんである。Also, commonly used pumps, namely,
It is needless to say that the present invention is applicable to a pump having only one pump head.
本発明によれば、圧力センサー及び電流センサーの双
方の情報に基づいてモーターを制御するようにしている
ので、ポンプの空運転状態を正確に判断して停止するこ
とができる。According to the present invention, since the motor is controlled based on the information of both the pressure sensor and the current sensor, the idle operation state of the pump can be accurately determined and stopped.
第１図は本発明に係るポンプ装置の一実施例を示す斜視
図、第２図は第１図のＰから見た制御箱表面を示す斜視
図、第３図は本発明のブロツク回路図、第４図は本発明
の水量−圧力，電流特性線図である。 2,3……ポンプヘツド、20……モーター、24……圧力セ
ンサー、25……電流センサー。1 is a perspective view showing an embodiment of a pump device according to the present invention, FIG. 2 is a perspective view showing a control box surface viewed from P in FIG. 1, FIG. 3 is a block circuit diagram of the present invention, FIG. 4 is a water volume-pressure / current characteristic diagram of the present invention. 2,3 ... Pump head, 20 ... Motor, 24 ... Pressure sensor, 25 ... Current sensor.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F04D 15/00 F04B 49/10 311──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) F04D 15/00 F04B 49/10 311
Claims (2)
ーターの電流を検出する電流センサーと、前記圧力セン
サー及び前記電流センサーの情報に基づいて前記モータ
ーの電源を入切を制御する制御手段とを有し、 前記制御手段はポンプ空運転時の電流IAを予め記憶する
と共に、前記圧力センサーの検出値が前記電流IAより大
きい電流Ｉに対応する圧力HA以下でポンプが運転を継続
した場合に、ポンプを停止するようにしたことを特徴と
するポンプ装置。1. A pressure sensor for detecting an internal pressure of a pump, a current sensor for detecting a current of a motor, and control means for controlling turning on and off of the motor based on information of the pressure sensor and the current sensor. a, the control unit stores the current I a when the pump idling previously, pump pressure H a below the detection value of the pressure sensor corresponding to the current I a is larger than current I continues to operate A pump device wherein the pump is stopped in the case.
ーターの電流を検出する電流センサーと、前記圧力セン
サー及び前記電流センサーの情報に基づいて前記モータ
ーの電源を入切を制御する制御手段とを有し、 前記制御手段はポンプ空運転時の電流IAを予め記憶する
と共に、前記圧力センサーの検出値がポンプ停止圧力H
OFF以下でポンプが運転を継続した場合に、ポンプを停
止するようにしたことを特徴とするポンプ装置。2. A pressure sensor for detecting an internal pressure of a pump, a current sensor for detecting a current of a motor, and control means for controlling turning on and off of the motor based on information of the pressure sensor and the current sensor. has, together with the control means stores the current I a when the pump idling previously, the pressure sensor detection value pump stop pressure H
A pump device wherein the pump is stopped when the pump continues to operate at OFF or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080760A JP2804149B2 (en) | 1990-03-30 | 1990-03-30 | Pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080760A JP2804149B2 (en) | 1990-03-30 | 1990-03-30 | Pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03282000A JPH03282000A (en) | 1991-12-12 |
| JP2804149B2 true JP2804149B2 (en) | 1998-09-24 |
Family
ID=13727374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2080760A Expired - Fee Related JP2804149B2 (en) | 1990-03-30 | 1990-03-30 | Pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2804149B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2544278B2 (en) * | 1992-06-13 | 1996-10-16 | コロナ工業株式会社 | Bath water circulation device with water flow sensor |
| JPH0763170A (en) * | 1993-08-24 | 1995-03-07 | Niigata Eng Co Ltd | Water shortage detecting method in pumping equipment and its device |
| WO2011022557A2 (en) * | 2009-08-19 | 2011-02-24 | Aspen Motion Technologies, Inc. D/B/A | Magnetic drive pump assembly with integrated motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633774B2 (en) * | 1984-07-27 | 1994-05-02 | 株式会社荏原製作所 | Variable speed water supply device |
| JPS6158983A (en) * | 1984-08-29 | 1986-03-26 | Hitachi Ltd | Liquefied gas pump protection device |
| JPS6170186A (en) * | 1984-09-13 | 1986-04-10 | Mitsubishi Electric Corp | Electric pump |
| JPH0693213B2 (en) * | 1986-02-28 | 1994-11-16 | 日立金属株式会社 | Water pressure control valve |
-
1990
- 1990-03-30 JP JP2080760A patent/JP2804149B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03282000A (en) | 1991-12-12 |
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