JPS648007U

JPS648007U -

Info

Publication number: JPS648007U
Application number: JP10304987U
Authority: JP
Priority date: 1987-07-04
Filing date: 1987-07-04
Publication date: 1989-01-17

Description

[Brief explanation of the drawing]

第１図は本考案のボイラの給水及び水位制御装
置におけるボイラの水位と時間との関係を示すポ
ンプ動作の一実施例、第２図Ａはボイラの正常運
転時におけるボイラ水位と時間との関係を示す図
、第２図Ｂはボイラの軽負荷時における低水位遮
断が働いた場合のボイラ水位と時間との関係を示
す図、第３図は具体的にボイラの水位制御動作を
示す一実施例、第４図は本考案の給水制御動作の
従来の場合と比較したフローチヤートを示す。４……ボイラ、５……制御器、６……コラム、
７……水面計、８……ボイラの低水位遮断部、Ａ
……ＮＷＬのポンプオンのライン、Ｂ，Ａ′……
ポンプオフのライン、Ｂ′……ポンプオフのライ
ン。 Figure 1 shows an example of pump operation showing the relationship between the boiler water level and time in the boiler water supply and water level control system of the present invention, and Figure 2A shows the relationship between the boiler water level and time during normal operation of the boiler. Figure 2B is a diagram showing the relationship between the boiler water level and time when the low water level cut-off is activated during a light boiler load, and Figure 3 is a diagram showing the specific boiler water level control operation. For example, FIG. 4 shows a flowchart of the water supply control operation of the present invention in comparison with a conventional case. 4...boiler, 5...controller, 6...column,
7...Water level gauge, 8...Boiler low water level cutoff part, A
...NWL pump-on line, B, A'...
Pump-off line, B'...Pump-off line.

補正昭６２．１０．２９図面の簡単な説明を次のように補正する。明細書中、９頁４行目、「第２図Ａ」を「第２
図」に訂正。明細書中、９頁６行目、「第２図Ｂ」を「第５
図」に訂正。Amendment October 29, 1982 The brief description of the drawing is amended as follows. In the specification, page 9, line 4, "Figure 2 A" is replaced with "Figure 2
Corrected to "Fig." In the specification, page 9, line 6, "Figure 2 B" is replaced with "Figure 5.
Corrected to "Fig."

Claims

[Scope of utility model registration request]

In a boiler equipped with a water supply and water level control device, at the same time as burner combustion is stopped or switched to low combustion, the OFF point B of the conventional water supply pump is turned on (
ON) Point A' is set to operate the water supply pump, and after the water level reaches ON point B, a timer is set to set the water supply pump to OFF point B' after a certain period of time, and the water supply pump is stopped.
When the burner stops or switches to low combustion, A'-B' is used as the water pump on-off width, and as soon as the signal to start burner combustion or switch to high combustion is issued, the original water supply control position A-B is returned. 1. A water supply and water level control device for a boiler, characterized in that it is provided with means for operating the boiler.