JP2652656B2 - Electromagnetic water heater - Google Patents
Electromagnetic water heaterInfo
- Publication number
- JP2652656B2 JP2652656B2 JP63082758A JP8275888A JP2652656B2 JP 2652656 B2 JP2652656 B2 JP 2652656B2 JP 63082758 A JP63082758 A JP 63082758A JP 8275888 A JP8275888 A JP 8275888A JP 2652656 B2 JP2652656 B2 JP 2652656B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- electromagnetic
- coil
- level
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 52
- 238000007654 immersion Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/02—Electrodynamic pumps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、侵漬式円筒形電磁ポンプの制御方法に係る
もので、溶湯保持炉の湯面の高さを一定に保って、該侵
漬式円筒形電磁ポンプによって給湯される湯量のバラツ
キを少なくする電磁給湯装置の制御に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for controlling an immersion type cylindrical electromagnetic pump. The present invention relates to control of an electromagnetic hot water supply apparatus for reducing variation in the amount of hot water supplied by an immersion cylindrical electromagnetic pump.
［従来の技術］ 従来、電磁給湯装置の制御においては、第２図に示す
ように溶湯保持炉の湯面保持時はU,V,Wに電流を流すこ
とにより円筒型電磁ポンプの全コイルに給湯時に必要と
する湯面高さを保持するのに必要な量の湯面保持用の励
磁電流を流して、湯面を保持するようにしていた。[Prior Art] Conventionally, in the control of an electromagnetic hot water supply apparatus, as shown in FIG. In order to maintain the required level of hot water at the time of hot water supply, a sufficient amount of exciting current for maintaining the hot level is supplied to maintain the hot level.
［発明が解決しようとする課題］ しかしながら、従来の電磁給湯装置の制御においては
湯面保持と給湯のために使用される円筒型電磁ポンプの
全出力に対して、給湯に必要なポンプ出力が比較的小さ
いため、管路の抵抗の変化によって生じるところの励磁
電流の変動率、即ち所定の給湯量を給湯するために必要
とする励磁電流量の該励磁電流に対する変動比率が大き
い。それ故に湯面保持精度が不安定となり、前記の給湯
量を一定に保つための該電磁給湯装置の制御が容易では
なかった。又湯面保持精度を上げるためには高価な定湯
面炉を使用しなければならなかった。[Problems to be Solved by the Invention] However, in the control of the conventional electromagnetic water heater, the pump output required for hot water supply is compared with the total output of the cylindrical electromagnetic pump used for maintaining the water level and supplying hot water. Therefore, the rate of change of the exciting current caused by the change in the resistance of the pipeline, that is, the rate of change of the amount of exciting current required to supply a predetermined amount of hot water to the exciting current is large. Therefore, the accuracy of maintaining the hot water level becomes unstable, and it has been difficult to control the electromagnetic hot water supply device to keep the hot water supply amount constant. Further, in order to increase the precision of maintaining the surface level, an expensive constant level furnace had to be used.
本発明は上述の点に鑑み、給湯する際に標準の保持炉
を使用して、湯面保持精度を向上し一定の給湯量を保持
するための制御精度向上を計ることを目的とする。SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to improve the control accuracy for maintaining a constant level of hot water supply by using a standard holding furnace when supplying hot water.
［課題を解決するための手段］ この目的を達成するために、本発明では電磁給湯装置
内の円筒型電磁ポンプの六対の励磁コイルを三対ずつの
２群に分割して湯面保持のコントローラと給湯用のコン
トローラを独立させてそれぞれに専用のコントローラを
取付けて制御することを特徴とする電磁給湯装置を提供
する。Means for Solving the Problems In order to achieve this object, in the present invention, six pairs of excitation coils of a cylindrical electromagnetic pump in an electromagnetic water heater are divided into two groups of three pairs to maintain the level of the molten metal. An electromagnetic water heater is provided, in which a controller and a controller for hot water supply are made independent, and a dedicated controller is attached to each controller for control.
［作用］ 本発明によれば、湯面保持専用のコイルを励磁するこ
とによりポンプ出力を行って、精度良く湯面保持をコン
トロールしていて、さらに給湯時に給湯専用のコイルを
励磁してポンプ出力を行い、一定量の溶湯をバラツキ少
なく給湯コントロールすることが可能となる。[Operation] According to the present invention, the pump output is performed by exciting the coil dedicated to maintaining the hot water level, and the maintenance of the hot water level is accurately controlled. And it is possible to control the supply of a certain amount of molten metal with less variation.
［実 施 例］ 次に、本発明の実施例を図面に基づいて説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の実施例の構成を示す断面図である。 FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.
溶湯の保持炉16の中に侵漬式円筒形電磁ポンプ15を侵
漬している。該電磁ポンプ15には給湯配管路17が接続さ
れており、さらに該給湯配管路17は射出スリーブ13に接
続されている。An immersion cylindrical electromagnetic pump 15 is immersed in a molten metal holding furnace 16. A hot water supply pipe 17 is connected to the electromagnetic pump 15, and the hot water supply pipe 17 is connected to the injection sleeve 13.
前記電磁ポンプ15の励磁コイルを２つに分けて、該励
磁コイルの中、1,2,3を湯面保持用コイルとし、残りの
励磁コイル4,5,6を給湯用コイルとしている。The exciting coil of the electromagnetic pump 15 is divided into two, and among the exciting coils, 1, 2, and 3 are used as a hot water surface maintaining coil, and the remaining exciting coils 4, 5, and 6 are used as hot water supply coils.
前記二つの励磁コイルはそれぞれに、別々のコントロ
ール装置に接続されている。即ち湯面保持用コイル1,2,
3は湯面保持コイルコントロール装置（インバータ）９
に接続されており、他の給湯用コイル4,5,6は給湯コイ
ルコントロール装置（インバータ）10に接続されてい
る。さらに該湯面保持コイルコントローラ９および給湯
コイルコントローラ10はインターフェーイス12を介して
マイクロコンピュータ内臓のコントローラ11に接続され
ている。The two excitation coils are each connected to a separate control device. That is, the coils 1 and 2
3 is a hot surface holding coil control device (inverter) 9
The other hot water supply coils 4, 5, and 6 are connected to a hot water supply coil control device (inverter) 10. Further, the hot water holding coil controller 9 and the hot water supply coil controller 10 are connected to a controller 11 built in the microcomputer via an interface 12.
一方、湯面変化を連続的に検知する機能を有する湯面
検出器７を設けて湯面検出を行う。この湯面検出器７は
例えばフロート7aに検出棒を取着した構造で、該検出棒
の移動をポテンショメータ7bで検出する方式でもよい。
該湯面検出器７による湯面検知の出力は湯面検出器用ア
ンプ８を経てA/D変換されて前記のマイクロコンピュー
タを内臓するコントローラ11に入力される。On the other hand, a level detector 7 having a function of continuously detecting a level change is provided to perform level detection. The molten metal level detector 7 has, for example, a structure in which a detection rod is attached to a float 7a, and the movement of the detection rod may be detected by a potentiometer 7b.
The output of the level detection by the level detector 7 is A / D converted through an amplifier 8 for the level detector and input to the controller 11 having the microcomputer.
該コントローラ11では、保持湯面と保温炉の湯面との
水頭Ｈに相当する湯面保持コイルの励磁電流を演算し、
その出力は前記コントローラ11のI/O装置を経てインタ
ーフェイス12を通して湯面保持コイルコントローラ（イ
ンバータ）９を制御する。そこで励磁コイルに保持湯面
の保持に必要な励磁電流が制御される。The controller 11 calculates an exciting current of a hot surface holding coil corresponding to a water head H between the hot surface of the hot water and the hot surface of the heat retaining furnace,
The output of the controller 11 controls the molten metal level holding coil controller (inverter) 9 through the interface 12 via the I / O device of the controller 11. Therefore, an exciting current required for holding the holding surface in the exciting coil is controlled.
次に給湯の指令がダイカストマシンの作業サイクルに
従って前記コントローラ11から発せられると、給湯コイ
ルに給湯に必要な励磁電流が制御され、例えば一定時
間、一定の前記励磁電流が制御されて射出スリーブ13に
定量給湯される。Next, when a hot water supply command is issued from the controller 11 in accordance with the work cycle of the die casting machine, the exciting current required for hot water supply to the hot water supply coil is controlled, for example, for a certain period of time, the constant exciting current is controlled, and the injection sleeve 13 is controlled. A fixed amount of hot water is supplied.
以上は前記コントローラ11の制御指令によって前記イ
ンタフェイス12を経て給湯コイルコントローラ10が制御
される。In the above, the hot water supply coil controller 10 is controlled via the interface 12 by the control command of the controller 11.
次に給湯が完了すると、次の指令で射出プランジヤ14
が前進し、ダイカストマシンの金型のキャビティに溶湯
が充填される。Next, when the hot water supply is completed, the injection plunger 14 is
Moves forward, and the cavity of the die of the die casting machine is filled with the molten metal.
［発明の効果］ 以上説明したように、本発明に依れば、高価な定湯面
炉の代りに標準化されている省エネ保持炉を使用したと
ころの、給湯量のバラツキのない電磁給湯システムを実
用化することができる。従って装置の経済性、保守性、
作業性の向上に及ぼす効果は大である。[Effects of the Invention] As described above, according to the present invention, there is provided an electromagnetic hot water supply system using a standardized energy saving furnace instead of an expensive constant temperature furnace, and having no variation in hot water supply amount. It can be put to practical use. Therefore, the economics, maintainability,
The effect on the improvement of workability is great.
第１図は本発明の実施例の構成を示す断面図、第２図は
従来の電磁給湯装置の構成を示す断面図である。 7b……ポテンショメータ,17……給湯配管路， 18……三相電源,19……制御装置， L1……保持湯面,L2……給湯時の湯面FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention, and FIG. 2 is a sectional view showing a configuration of a conventional electromagnetic water heater. 7b Potentiometer, 17 Hot water supply pipe line, 18 Three-phase power supply, 19 Control device, L 1 … Holding water level, L 2 … Hot water level at hot water supply
Claims (2)
湯装置の制御において、一体で構成された前記円筒型電
磁ポンプの励磁コイルを湯面保持コイルと給湯コイルに
分離して制御することを特徴とする電磁給湯装置。In the control of an electromagnetic water heater using an immersion type cylindrical electromagnetic pump, the excitation coil of the integrally formed cylindrical electromagnetic pump is separated and controlled into a hot water level holding coil and a hot water supply coil. An electromagnetic water heater.
保持コイルのポンプ出力を給湯コイルのポンプ出力より
も大としたことを特徴とする電磁給湯装置。2. The electromagnetic hot water supply apparatus according to claim 1, wherein the pump output of the hot water level holding coil is larger than the pump output of the hot water supply coil in the control of the electromagnetic hot water supply apparatus.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082758A JP2652656B2 (en) | 1988-04-04 | 1988-04-04 | Electromagnetic water heater |
| KR1019890004299A KR910007679B1 (en) | 1988-04-04 | 1989-04-01 | Electromatic molten metal supplier |
| CA000595500A CA1337015C (en) | 1988-04-04 | 1989-04-03 | Electromagnetic molten metal supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082758A JP2652656B2 (en) | 1988-04-04 | 1988-04-04 | Electromagnetic water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01255467A JPH01255467A (en) | 1989-10-12 |
| JP2652656B2 true JP2652656B2 (en) | 1997-09-10 |
Family
ID=13783341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63082758A Expired - Lifetime JP2652656B2 (en) | 1988-04-04 | 1988-04-04 | Electromagnetic water heater |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2652656B2 (en) |
| KR (1) | KR910007679B1 (en) |
| CA (1) | CA1337015C (en) |
-
1988
- 1988-04-04 JP JP63082758A patent/JP2652656B2/en not_active Expired - Lifetime
-
1989
- 1989-04-01 KR KR1019890004299A patent/KR910007679B1/en not_active Expired
- 1989-04-03 CA CA000595500A patent/CA1337015C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR890015804A (en) | 1989-11-25 |
| JPH01255467A (en) | 1989-10-12 |
| KR910007679B1 (en) | 1991-09-30 |
| CA1337015C (en) | 1995-09-19 |
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