JPH0521036Y2 - - Google Patents
Info
- Publication number
- JPH0521036Y2 JPH0521036Y2 JP1987161639U JP16163987U JPH0521036Y2 JP H0521036 Y2 JPH0521036 Y2 JP H0521036Y2 JP 1987161639 U JP1987161639 U JP 1987161639U JP 16163987 U JP16163987 U JP 16163987U JP H0521036 Y2 JPH0521036 Y2 JP H0521036Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- standby system
- rectangular wave
- circuit
- pressure
- 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
- 238000004378 air conditioning Methods 0.000 description 13
- 238000003745 diagnosis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は加圧水型原子力発電所の給水制御弁に
おける空気調節部の診断に適用される待機系診断
装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a standby system diagnostic device that is applied to diagnose an air conditioning unit in a water supply control valve of a pressurized water nuclear power plant.
［従来の技術］
従来、空気作動弁の空気調節部を常用系と待機
系に二重化したシステムにおいて、待機系の健全
性を確認するための手段としては、現場の手動に
て診断用の信号を印加する方式が採用されてい
た。[Prior Art] Conventionally, in a system in which the air control section of an air-operated valve is duplicated into a regular system and a standby system, the means to check the health of the standby system is to manually send a diagnostic signal on-site. An application method was used.
［考案が解決しようとする問題点］
上述のように空気作動弁空気調節部を常用系と
待機系の二重化構成したシステムにおいて、従来
は、待機系の診断を現場で定期的に行つていた
が、その間の診断は行つておらず、そのため常用
系が故障して待機系へ切換わるときに、待機系が
確実に作動する保証がないという問題があつた。[Problems to be solved by the invention] As mentioned above, in a system in which the air-operated valve air adjustment section is configured in a dual system for the regular system and the standby system, conventionally, the diagnosis of the standby system was periodically performed on-site. However, no diagnosis was performed during that time, and as a result, there was a problem in that there was no guarantee that the standby system would operate reliably when the regular system failed and the switch was made to the standby system.
したがつて、本考案においては、常時待機系の
診断を行うことができ、システムの信頼性を向上
させることのできる空気作動弁空気調節部待機系
診断装置を提供することを技術的課題とする。 Therefore, the technical object of the present invention is to provide a standby system diagnostic device for an air-operated valve air regulator that can constantly diagnose the standby system and improve the reliability of the system. .
［問題点を解決するための手段］
上記問題点を解決する本考案は、常用系と待機
系とに二重化された空気作動弁空気調節部におい
て、矩形波を発生する矩形波発生回路と、前記矩
形波を前述常用系への制御信号に加算して前記体
系へ出力する加算器と、上部待機系の出口圧力を
測定し、所定の時間内に該出口圧力が供給空気圧
力及び大気圧となることを判別することにより、
前記待機系の健全性を診断する診断回路とを備え
たことを要旨とする。[Means for Solving the Problems] The present invention for solving the above-mentioned problems includes a rectangular wave generation circuit that generates a rectangular wave in an air-operated valve air adjustment section that is duplicated in a regular system and a standby system; An adder that adds a rectangular wave to the control signal to the above-mentioned normal system and outputs it to the system, and measures the outlet pressure of the upper standby system, and the outlet pressure becomes the supply air pressure and atmospheric pressure within a predetermined time. By determining that
The present invention further comprises a diagnostic circuit for diagnosing the health of the standby system.
［作用］
上記構成により本考案では、矩形波発生回路に
より出力される矩形波の振幅を適当に選べば、待
機系空気調節部の出口圧力は、所定の時間で供給
空気圧と大気圧に到達する。若し、待機系空気調
節弁が故障していれば、供給空気圧あるいは大気
圧に到達しないか、到達しても所定の時間以上の
時間がかかり、そのため待機系空気調節部が故障
していることを診断回路が判定する。[Function] With the above configuration, in the present invention, if the amplitude of the rectangular wave outputted by the rectangular wave generation circuit is appropriately selected, the outlet pressure of the standby air conditioning section can reach the supply air pressure and the atmospheric pressure in a predetermined time. . If the standby system air control valve is malfunctioning, the supply air pressure or atmospheric pressure will not be reached, or even if it does, it will take longer than the specified time, which means that the standby system air control unit is malfunctioning. The diagnostic circuit determines.
［実施例］
以下、図面の参照して本考案の一実施例を説明
する。第１図は本考案の一実施例に係る診断装置
の全体構成を示している。図中、空気作動弁空気
調節部は常用空気調節部１と待機系空気調節部２
とに二重化されている。３は矩形波（振幅±ε）
を発生する矩形波発生回路、４は矩形波発生回路
３から出力された矩形波を常用系への制御信号に
加算して待機系へ出力する加算器、５，６は常用
系と待機系とを切り換える切換え切換器、７は待
機系空気調節部２の出口圧力を測定する圧力計、
８は圧力計７の出力信号と矩形波発生回路３の出
力信号を入力とし、所定の時間内に該出口圧力が
供給空気圧及び大気圧となることを判別すること
にり、前記待機系の健全性を診断するし診断回
路、９は空気作動弁である。[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the overall configuration of a diagnostic device according to an embodiment of the present invention. In the figure, the air-operated valve air adjustment parts are the regular air adjustment part 1 and the standby air adjustment part 2.
It has been doubled. 3 is a square wave (amplitude ±ε)
4 is an adder that adds the rectangular wave output from the rectangular wave generating circuit 3 to the control signal for the regular system and outputs it to the standby system. 5 and 6 are the adders for the regular system and the standby system. 7 is a pressure gauge that measures the outlet pressure of the standby system air conditioning unit 2;
8 inputs the output signal of the pressure gauge 7 and the output signal of the rectangular wave generation circuit 3, and determines whether the outlet pressure reaches the supply air pressure and the atmospheric pressure within a predetermined time, thereby checking the health of the standby system. A diagnostic circuit 9 is an air-operated valve.
上記診断装置において、先ず、制御信号ａは常
用系空気調節部１が正常であれば、切換器５を介
して常用系空気調節部１に２される。この制御信
号ａには矩形波発生回路３から出力された矩形波
ｂが加算器４において加算演算され、さらに切換
器５を介して待機系空気調節部２に入力される。 In the above-mentioned diagnostic device, first, the control signal a is sent to the regular air conditioning unit 1 via the switching device 5 if the regular air conditioning unit 1 is normal. A rectangular wave b output from the rectangular wave generating circuit 3 is added to this control signal a in an adder 4, and is further inputted to the standby air conditioning section 2 via a switch 5.
また、常用系空気調節部１が故障の時は、切換
器５が切換わり、これにより制御信号ａは待機系
空気調節部２に送られる。この待機系空気調節部
２の出力は切換器６を介して空気作動弁９に出力
される。待機空気調節部２の出口圧力は圧力計７
で計測され、その出力である圧力信号ｃと矩形波
ｂが診断回路８へ入力される。 Further, when the regular system air conditioning section 1 is out of order, the switching device 5 is switched, and the control signal a is thereby sent to the standby system air conditioning section 2. The output of this standby system air adjustment section 2 is outputted to the air operated valve 9 via the switching device 6. The outlet pressure of the standby air adjustment section 2 is measured by the pressure gauge 7.
The pressure signal c and the rectangular wave b, which are the outputs thereof, are input to the diagnostic circuit 8.
この診断装置８は第２図に示すように、タイマ
回路２１、比較器２２、アンド回路２３、ウオツ
チドツグタイマ回路２４、タイマ回路２５、比較
器２５、比較器２６、アンド回路２７、ウオツチ
ドツグタイマ回路２８及びアンド回路２９により
構成されている。 As shown in FIG. It is composed of a double-dog timer circuit 28 and an AND circuit 29.
第３図は診断回路８内の各点の出力信号を示す
ものである。なお、圧力信号ｂにおいて、第１の
山は正常の波形で、第２の山は故障時の波形を模
擬している。また、第４図は矩形波ｂと圧力信号
ｃを取り出してその関係を示すものである。 FIG. 3 shows output signals at each point within the diagnostic circuit 8. In the pressure signal b, the first peak is a normal waveform, and the second peak is a waveform simulating a failure. Further, FIG. 4 shows the relationship between the rectangular wave b and the pressure signal c.
上記診断回路８において、タイマ回路２１は、
矩形波ｂが正側に変化してから一定時間（τ1時
間）「１」を出力し、その後は「０」を出力する。
比較器２２は、圧力信号ｂが供給空気圧となつた
とき「１」を出力しそうでなければ「０」を出力
する。アンド回路２３は、タイマ回路２１の出力
と比較器２２の出力が共に「１」を出力したとき
のみ「１」を出力し、他の場合は「０」を出力す
る。ウオツチドツグタイマ回路２４はあらかじめ
設定された時間（τ3）以内に入力が「０」から
「１」に変化しなければ、出力を「０」とする。 In the diagnostic circuit 8, the timer circuit 21:
After the rectangular wave b changes to the positive side, it outputs "1" for a certain period of time (τ 1 hour), and then outputs "0".
The comparator 22 outputs "1" when the pressure signal b reaches the supply air pressure, and otherwise outputs "0". The AND circuit 23 outputs "1" only when the output of the timer circuit 21 and the output of the comparator 22 both output "1", and outputs "0" in other cases. The watchdog timer circuit 24 outputs "0" if the input does not change from "0" to "1" within a preset time (τ 3 ).
また、タイマ回路２５は、矩形波ａが負側に変
化してから一定時間（τ2時間）「１」を出力し、
その後は「０」を出力する。比較器２６は圧力信
号ｂが大気圧となつたとき、「１」を出力し、そ
うでなければ「０」を出力する。アンド回路２７
はタイマ回路２５の出力と比較器２６の出力が共
に「１」を出力したときのみ「１」を出力し、他
の場合は「０」を出力する。ウオツチドツグタイ
マ回路２８はあらかじめ設定された時間（τ4）以
内に入力が「０」から「１」に変化しなければ出
力を「０」とする。アンド回路２９は、ウオツチ
ドツグタイマ回路２４，２８の出力が共に「１」
のときのみその出力が「１」となる。すなわち診
断回路８はアンド回路２９の出力が「１」のとき
は待機系空気調節部２は正常であると判定し、
「０」となれば故障と判定する。 Further, the timer circuit 25 outputs "1" for a certain period of time (τ 2 hours) after the rectangular wave a changes to the negative side,
After that, it outputs "0". The comparator 26 outputs "1" when the pressure signal b reaches atmospheric pressure, and otherwise outputs "0". AND circuit 27
outputs "1" only when the output of the timer circuit 25 and the output of the comparator 26 both output "1", and outputs "0" in other cases. The watchdog timer circuit 28 outputs "0" if the input does not change from "0" to "1" within a preset time (τ 4 ). The AND circuit 29 causes the outputs of the watchdog timer circuits 24 and 28 to both be "1".
The output becomes "1" only when . That is, the diagnostic circuit 8 determines that the standby air conditioning unit 2 is normal when the output of the AND circuit 29 is "1",
If it becomes "0", it is determined that there is a failure.
［考案の効果］
以上のように本考案によれば、常用系と待機系
とに二重化された空気作動弁空気調節部におい
て、矩形波を発生する矩形波発生回路と、前記矩
形波を前記常用系への制御信号に加算して前記待
機系へ出力する加算器と、前記待機系の出口圧力
を測定し、規定の時間内に該出口圧力が供給空気
圧力及び大気圧となることを判別することによ
り、前記待機系の健全性を診断する診断回路とを
備えたことを要旨とするので、待機系の故障診断
を常時行うことができ、システムの信頼性を向上
させることができる。[Effects of the invention] As described above, according to the invention, in the air-operated valve air adjustment section which is duplicated for the regular system and the standby system, there is a rectangular wave generating circuit that generates a rectangular wave, and a rectangular wave generating circuit that generates a rectangular wave. an adder that adds to the control signal to the system and outputs it to the standby system; and an adder that measures the outlet pressure of the standby system and determines that the outlet pressure becomes the supply air pressure and atmospheric pressure within a specified time. Accordingly, since the present invention includes a diagnostic circuit for diagnosing the health of the standby system, failure diagnosis of the standby system can be performed at all times, and the reliability of the system can be improved.
また、従来は現場で診断を行う際、診断要の信
号を印加する設備へ配線をつなぎ換えており、こ
のときに常用系空気調節部が故障した場合には、
待機系空気調節部への切換えが困難であつたが、
切換器を設けることにより、常用系が故障した場
合でも容易に待機系に切換えることができる。 In addition, conventionally, when performing on-site diagnosis, the wiring was reconnected to the equipment that applied the diagnostic required signal, and if the regular air conditioning section broke down at this time,
Although it was difficult to switch to the standby air conditioning unit,
By providing a switch, even if the regular system breaks down, it can be easily switched to the standby system.
第１図は本考案の一実施例に係る空気作動弁空
気調節部待機系診断装置の全体構成を示すブロツ
ク図、第２図は同装置における診断回路の構成を
示すブロツク図、第３図は第２図の診断回路の動
作を説明するための波計図、第４図は矩形波と圧
力信号との関係を説明するための波形図である。
１……常用系空気調節部、２……待機系空気調
節部、３……矩形波発生回路、４……加算器、
５，６……切換器、７……圧力計、８……診断回
路、９……空気作動弁。
FIG. 1 is a block diagram showing the overall configuration of an air-operated valve air adjustment unit standby system diagnostic device according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of a diagnostic circuit in the same device, and FIG. FIG. 2 is a waveform diagram for explaining the operation of the diagnostic circuit, and FIG. 4 is a waveform diagram for explaining the relationship between a rectangular wave and a pressure signal. 1... Regular system air conditioning section, 2... Standby system air conditioning section, 3... Square wave generation circuit, 4... Adder,
5, 6...Switcher, 7...Pressure gauge, 8...Diagnostic circuit, 9...Air operated valve.
Claims (1)
気調節部において、矩形波を発生する矩形波発生
回路と、前記矩形波を前記常用系への制御信号に
加算して前記待機系へ出力する加算器と、前記待
機系の出口圧力を測定し、所定の時間内に該出口
圧力が供給空気圧力及び大気圧となることを判別
することにより、前記待機系の健全性を診断する
診断回路とを備えたことを特徴とする空気作動弁
空気調節部待機系診断装置。 The air-operated valve air adjustment unit is duplicated for the regular system and the standby system, and includes a rectangular wave generation circuit that generates a rectangular wave, and adds the rectangular wave to a control signal to the regular system and outputs it to the standby system. an adder; and a diagnostic circuit for diagnosing the health of the standby system by measuring the outlet pressure of the standby system and determining that the outlet pressure reaches the supply air pressure and atmospheric pressure within a predetermined time. A diagnostic device for a standby system of an air-operated valve air control unit, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161639U JPH0521036Y2 (en) | 1987-10-22 | 1987-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161639U JPH0521036Y2 (en) | 1987-10-22 | 1987-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0166099U JPH0166099U (en) | 1989-04-27 |
| JPH0521036Y2 true JPH0521036Y2 (en) | 1993-05-31 |
Family
ID=31444757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987161639U Expired - Lifetime JPH0521036Y2 (en) | 1987-10-22 | 1987-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521036Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6613849B2 (en) * | 2015-11-26 | 2019-12-04 | 株式会社デンソーウェーブ | Robot controller |
-
1987
- 1987-10-22 JP JP1987161639U patent/JPH0521036Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0166099U (en) | 1989-04-27 |
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