JPH0321611U - - Google Patents
Info
- Publication number
- JPH0321611U JPH0321611U JP8038389U JP8038389U JPH0321611U JP H0321611 U JPH0321611 U JP H0321611U JP 8038389 U JP8038389 U JP 8038389U JP 8038389 U JP8038389 U JP 8038389U JP H0321611 U JPH0321611 U JP H0321611U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm seal
- differential pressure
- balance pipe
- temperature detector
- liquid 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案の液位測定装置の実施例の構成
図、第２図は他の実施例の構成図、第３図は従来
の液位測定装置の構成図、第４図は液位測定装置
に用いられるダイヤフラムシール機構の内部構造
を示す構成図である。
１……給水加熱器、２……上部バランス管、３
……下部バランス管、４……液面計、５……差圧
伝送器、５ａ……高圧側ダイヤフラムシール機構
、５ｂ……低圧ダイヤフラムシール機構、７……
温度検出器、８……関数発生器、９……演算器、
１０……水位制御装置、１１……高水位用レベル
スイツチ、１２……低水位用レベルスイツチ、２
０，２１……温度検出器、２２……減算器、２３
……演算器、２４……減算器。
Fig. 1 is a block diagram of an embodiment of the liquid level measuring device of the present invention, Fig. 2 is a block diagram of another embodiment, Fig. 3 is a block diagram of a conventional liquid level measuring device, and Fig. 4 is a liquid level measuring device. It is a block diagram which shows the internal structure of the diaphragm seal mechanism used for a measuring device. 1... Water heater, 2... Upper balance pipe, 3
...Lower balance pipe, 4...Liquid level gauge, 5...Differential pressure transmitter, 5a...High pressure side diaphragm seal mechanism, 5b...Low pressure diaphragm seal mechanism, 7...
Temperature detector, 8...Function generator, 9...Arithmetic unit,
10...Water level control device, 11...Level switch for high water level, 12...Level switch for low water level, 2
0, 21...Temperature detector, 22...Subtractor, 23
...Arithmetic unit, 24...Subtractor.
Claims (1)
管にそれぞれ一対のダイヤフラムシール機構の一
端を接続し、これらのダイヤフラムシール機構の
他端に差圧伝送器を接続して吸水加熱器内のドレ
ン水の液位を測定する装置において、前記ダイヤ
フラムシール機構と前記上部バランス管と下部バ
ランス管との接続部にそれぞれ温度検出器を取付
け、さらに演算器を前記温度検出器に接続して前
記温度検出器からの温度信号をこの演算器に入力
して前記上部バランス部と下部バランス管の温度
差に起因する前記ダイヤフラムシール機構内の封
入液の熱膨張差により生じる差圧量を算出し、の
差圧量により前記差圧伝送器より検出されたドレ
ン水の液位を補正して実水位を求める液位測定装
置。 ２ 吸水加熱器の上部バランス管と下部バランス
管にそれぞれ一対のダイヤフラムシール機構の一
端を接続し、これらのダイヤフラムシール機構の
他端に差圧伝送器を接続して吸水加熱器内のドレ
ン水の液位を測定する装置において、前記ダイヤ
フラムシール機構と前記上部バランス管と下部バ
ランス管との接続部にそれぞれ温度検出器を取付
け、さらに比較演算器を前記温度検出器に接続し
て前記温度検出器からの温度信号をこの比較演算
器に入力してドレン水の比重量を算出し、この比
重量により前記差圧伝送器より検出されたドレン
水の液位を補正して実水位を求める液位測定装置
。[Claims for Utility Model Registration] 1. One end of a pair of diaphragm seal mechanisms is connected to the upper balance pipe and the lower balance pipe of the water absorption heater, respectively, and a differential pressure transmitter is connected to the other end of these diaphragm seal mechanisms. In the device for measuring the liquid level of drain water in a water absorption heater, a temperature detector is attached to each connection portion between the diaphragm seal mechanism and the upper balance pipe and the lower balance pipe, and a computing unit is attached to the temperature detector. The temperature signal from the temperature sensor is input to this calculator to calculate the amount of differential pressure caused by the difference in thermal expansion of the liquid sealed in the diaphragm seal mechanism due to the temperature difference between the upper balance section and the lower balance tube. A liquid level measuring device that calculates the actual water level by correcting the drain water level detected by the differential pressure transmitter based on the differential pressure amount. 2 Connect one end of a pair of diaphragm seal mechanisms to the upper balance pipe and lower balance pipe of the water absorption heater, respectively, and connect a differential pressure transmitter to the other end of these diaphragm seal mechanisms to control the drain water in the water absorption heater. In the device for measuring the liquid level, a temperature detector is attached to each connection portion between the diaphragm seal mechanism and the upper balance tube and the lower balance tube, and a comparator is further connected to the temperature detector to detect the temperature detector. The temperature signal is input to this comparator to calculate the specific weight of the drain water, and the liquid level of the drain water detected by the differential pressure transmitter is corrected based on this specific weight to obtain the actual water level. measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8038389U JPH0321611U (en) | 1989-07-07 | 1989-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8038389U JPH0321611U (en) | 1989-07-07 | 1989-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321611U true JPH0321611U (en) | 1991-03-05 |
Family
ID=31625393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8038389U Pending JPH0321611U (en) | 1989-07-07 | 1989-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012145264A (en) * | 2011-01-11 | 2012-08-02 | Kawasaki Thermal Engineering Co Ltd | Water supply control device for multitubular once-through boiler |
-
1989
- 1989-07-07 JP JP8038389U patent/JPH0321611U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012145264A (en) * | 2011-01-11 | 2012-08-02 | Kawasaki Thermal Engineering Co Ltd | Water supply control device for multitubular once-through boiler |
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