JPH0543984B2 - - Google Patents
Info
- Publication number
- JPH0543984B2 JPH0543984B2 JP62282126A JP28212687A JPH0543984B2 JP H0543984 B2 JPH0543984 B2 JP H0543984B2 JP 62282126 A JP62282126 A JP 62282126A JP 28212687 A JP28212687 A JP 28212687A JP H0543984 B2 JPH0543984 B2 JP H0543984B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- safety valve
- hydraulic
- transducer
- 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
- 238000012360 testing method Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 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
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、安全弁たとえば火力発電所、原子力
発電所等に用いられる主蒸気安全弁の作動圧力
（吹き出し圧力）を試験する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for testing the operating pressure (blowing pressure) of a safety valve, such as a main steam safety valve used in thermal power plants, nuclear power plants, etc.
安全弁は、配管ラインの最高使用圧力時に作動
する（吹き出す）よう設計されており、通常運転
時には、安全弁は、吹き出さない。一方、安全弁
が最高使用圧力時に正常に吹き出すという機能を
確認するため、配管ライン内圧力が最高使用圧力
の約70％程度（通常運転圧力をやや下回つた程
度）の状態で弁棒を油圧ジヤツキにより引き上
げ、強制的に吹き出させる。そして、この弁棒の
引き上げ荷重と、配管ラインの圧力との関係か
ら、所定の範囲内に引き上げ荷重が入れば、当該
弁は、配管ラインの最高使用圧力時に吹き出すも
のと推定する。
The safety valve is designed to operate (blow out) at the maximum working pressure of the piping line, and during normal operation, the safety valve does not blow out. On the other hand, in order to confirm that the safety valve functions to blow out normally at the maximum working pressure, the valve stem was hydraulically jacked while the pressure inside the piping line was about 70% of the maximum working pressure (slightly below the normal operating pressure). Pull it up and force it to blow out. Based on the relationship between the lifting load on the valve stem and the pressure in the piping line, it is estimated that if the lifting load falls within a predetermined range, the valve will blow out at the maximum working pressure of the piping line.
上記のような従来の安全弁作動圧力試験の具体
的手順を第３図により説明する。２は配管１に取
付けられた安全弁である。配管１内の圧力が一定
になつた状態で、手動式ポンプ４、油圧ジヤツキ
５を用いて弁棒３を引上げてゆく。そして安全弁
２が吹き出した時の音を人間が感知し、その時の
油圧ジヤツキ５の油圧計６の目盛を読んで油圧ジ
ヤツキの荷重を求めるのである。この油圧ジヤツ
キ５は、弁棒３の先端にターンバツクル７を介し
て取付けられていた。 The specific procedure of the conventional safety valve operating pressure test as described above will be explained with reference to FIG. 2 is a safety valve attached to the pipe 1. With the pressure in the pipe 1 constant, the valve stem 3 is pulled up using the manual pump 4 and the hydraulic jack 5. A human senses the sound when the safety valve 2 blows out, and reads the scale of the oil pressure gauge 6 of the hydraulic jack 5 at that time to determine the load on the hydraulic jack. This hydraulic jack 5 was attached to the tip of the valve stem 3 via a turnbuckle 7.
〔発明が解決しようとする問題点〕
前記従来の方式では、弁作動を人間の聴力によ
り検知し、油圧目盛を人間の視力により読み取る
ので、検知精度が悪く、また作業員の熟練を要す
るという問題点があつた。さらに、圧油を手動ポ
ンプにより供給するため、手動ポンプを作動させ
る作業員及び上記検知のための作業員他、多くの
作業員を要していた。また、人手作業のため多く
の時間を要していた。[Problems to be Solved by the Invention] In the conventional method, the valve operation is detected by human hearing and the hydraulic pressure scale is read by human vision, so there is a problem that the detection accuracy is poor and the operator requires skill. The point was hot. Furthermore, since the pressure oil is supplied by a manual pump, many workers are required, including a worker who operates the manual pump and a worker who performs the above-mentioned detection. Moreover, the manual work required a lot of time.
そこで本発明の目的は、人手による上記作業の
省力化及び検知精度の向上を図ることにある。 Therefore, an object of the present invention is to save the above-mentioned manual work and improve detection accuracy.
本発明は前記問題点を解決するために、配管に
取付けられた安全弁の弁棒を引上げる油圧ジヤツ
キ；上記油圧ジヤツキに圧油を供給する流路に設
けられた電磁弁；上記弁棒の荷重を検出するロー
ドセル；上記配管の内部の圧力を検出する圧力ト
ランスジユーサ；上記流路の内部の圧力を検出す
る油圧トランスジユーサ；および上記安全弁の作
動に伴う油圧の変動を上記油圧トランスジユーサ
が検知したときに、上記電磁弁を閉じるとともに
上記ロードセルと上記圧力トランスジユーサの検
出値を記録しそれら検出値から上記安全弁の作動
圧力を演算する手段を具備したことを特徴とする
安全弁作動圧力試験装置を提案するものである。
In order to solve the above-mentioned problems, the present invention provides a hydraulic jack for pulling up the valve stem of a safety valve attached to a pipe; a solenoid valve provided in a flow path for supplying pressure oil to the hydraulic jack; and a load on the valve stem. a pressure transducer that detects the pressure inside the piping; a hydraulic transducer that detects the pressure inside the flow path; and a hydraulic transducer that detects fluctuations in oil pressure due to the operation of the safety valve The safety valve operating pressure is characterized by comprising means for closing the electromagnetic valve and recording the detected values of the load cell and the pressure transducer, and calculating the operating pressure of the safety valve from the detected values. This paper proposes a test device.
前記のような装置において、油圧ジヤツキで油
圧を上げると安全弁の作動（吹き出し）時微少な
油圧変動が生じる。これを油圧トランスジユーサ
で検知し、油圧ジヤツキへの油供給を電磁弁によ
つて遮断するとともに、その時の配管ラインの圧
力信号およびロードセルの荷重信号に基づいて、
安全弁の作動圧力を演算する。
In the above-mentioned device, when the oil pressure is increased using a hydraulic jack, slight oil pressure fluctuations occur when the safety valve is activated (blows out). This is detected by a hydraulic transducer, and the oil supply to the hydraulic jack is cut off by a solenoid valve, and based on the pressure signal of the piping line and the load signal of the load cell at that time,
Calculate the operating pressure of the safety valve.
本発明の一実施例の概要を第１図に、また第１
図中鎖線で囲まれた部分（試験装置）の詳細構
造を第２図に示す。
An overview of one embodiment of the present invention is shown in FIG.
FIG. 2 shows the detailed structure of the part (testing device) surrounded by the chain line in the figure.
第１図において、配管１に安全弁２が設置さ
れ、同安全弁２の弁棒３に、試験装置が設置さ
れる。試験装置は、受台１１、ヨーク１２、油
圧ジヤツキ受台１３で、外側の反力受け台を構成
し、弁棒３の上部に接続されたターンバツクル１
４、ロードセル１５、さらに、ロードセル１５に
接続する油圧ジヤツキ１６を具備する。油圧ジヤ
ツキ受台１３は、油圧ジヤツキ１６の反力を受け
る。又、油圧ジヤツキ１６の油圧管２０には油圧
トランスジユーサ１７および電磁弁１８が設けら
れており、油の供給がその電磁弁１８で制御され
る。センサアンプリレー２１は、配管１の圧力が
圧力トランスジユーサ１９で検出され変換された
電気信号、油圧トランスジユーサ１７の電気信
号、ロードセル１５の電気信号、電磁弁１８への
電気信号を、計算機２２に、インプツト又はアウ
トプツトするために変換（電流又は電圧）する。
そして、CRT付キーボード２３を作動させるこ
とにより、本システムは作動し、結果をCRT又
はプリンター２４に出力する。 In FIG. 1, a safety valve 2 is installed in a pipe 1, and a test device is installed on a valve stem 3 of the safety valve 2. The test device includes a pedestal 11, a yoke 12, and a hydraulic jack pedestal 13, which constitute an outer reaction force pedestal, and a turnbuckle 1 connected to the upper part of the valve stem 3.
4, a load cell 15, and a hydraulic jack 16 connected to the load cell 15. The hydraulic jack pedestal 13 receives the reaction force of the hydraulic jack 16. Further, the hydraulic pipe 20 of the hydraulic jack 16 is provided with a hydraulic transducer 17 and a solenoid valve 18, and the supply of oil is controlled by the solenoid valve 18. The sensor amplifier relay 21 sends an electric signal obtained by detecting and converting the pressure in the piping 1 by the pressure transducer 19, an electric signal from the hydraulic transducer 17, an electric signal from the load cell 15, and an electric signal to the solenoid valve 18 to a computer. 22 for conversion (current or voltage) for input or output.
Then, by operating the CRT-equipped keyboard 23, this system is operated and the results are output to the CRT or printer 24.
第２図は、試験装置の詳細図である。弁棒３
の上部に調整ナツト３１をねじ込み、同調整ナツ
ト３１の外側に、ターンバツクル１４をねじ込
む。ターンバツクル１４の内側に逆Ｔ字形の調整
ボルト３２を挿入する。調整ボルト３２はロード
セル１５に差し込まれ、調整ボルト３２の逆Ｔ字
部を引き上げると、ターンバツクル１４に接触
し、ターンバツクル１４を引き上げる。ロードセ
ル１５の他端は、油圧ジヤツキ１６に接続され
る。又、油圧ジヤツキ１６の油圧管２０に油圧ト
ランスジユーサ１７を取り付け、油圧ジヤツキで
油圧を上げるとき安全弁吹出し時の油圧の微少な
変動をこのトランスジユーサ１７が検出する。 FIG. 2 is a detailed diagram of the test apparatus. valve stem 3
An adjustment nut 31 is screwed into the upper part of the turnbuckle 14, and a turnbuckle 14 is screwed onto the outside of the adjustment nut 31. Insert the inverted T-shaped adjustment bolt 32 inside the turnbuckle 14. The adjustment bolt 32 is inserted into the load cell 15, and when the inverted T-shaped portion of the adjustment bolt 32 is pulled up, it contacts the turnbuckle 14 and pulls up the turnbuckle 14. The other end of the load cell 15 is connected to a hydraulic jack 16. Further, a hydraulic transducer 17 is attached to the hydraulic pipe 20 of the hydraulic jack 16, and when the hydraulic jack increases the hydraulic pressure, the transducer 17 detects minute fluctuations in the hydraulic pressure when the safety valve is blown out.
このような装置において、電磁弁１８を開いて
油圧ジヤツキ１６に油を供給すると、油圧ジヤツ
キが作動し、弁棒３を引き上げる。安全弁２が作
動すると（吹き出すと）、油圧トランスジユーサ
１７がその作動を検知する。そうすると、計算機
２２は、電磁弁１８を閉じる信号を出すととも
に、その時のロードセル１５の荷重の信号及び配
管１の圧力トランスジユーサ１９からの信号をセ
ンサアンプリレー２１で変換して記録する。計算
機２２はまた、あらかじめ組込まれたデータベー
スにより、上記ロードセル１５の荷重と配管１の
圧力から、配管１の最高使用圧力時の安全弁作動
圧力（吹出圧力）を求めて、CRTおよびプリン
タ２４に出力する。 In such a device, when the solenoid valve 18 is opened and oil is supplied to the hydraulic jack 16, the hydraulic jack is operated and the valve stem 3 is pulled up. When the safety valve 2 operates (blows out), the hydraulic transducer 17 detects the operation. Then, the computer 22 issues a signal to close the solenoid valve 18, and converts and records the signal of the load of the load cell 15 and the signal from the pressure transducer 19 of the piping 1 at that time using the sensor amplifier relay 21. The calculator 22 also calculates the safety valve operating pressure (blowout pressure) at the maximum operating pressure of the pipe 1 from the load of the load cell 15 and the pressure of the pipe 1 using a pre-installed database, and outputs it to the CRT and printer 24. .
上記実施例では、弁頭部に取り付ける油圧ジヤ
ツキ受台１３、受台１１、ヨーク１２を剛性の高
い大きな形状のものとする必要がなく、軽量化す
ることが可能である。すなわち、弁頭部以外の位
置に油圧トランスジユーサを付けておけば良く、
油圧ジヤツキ受台１３、ヨーク１２、受台１１は
軽量化できる。 In the above embodiment, the hydraulic jack pedestal 13, pedestal 11, and yoke 12 attached to the valve head do not need to have a large shape with high rigidity, and it is possible to reduce the weight. In other words, it is sufficient to attach the hydraulic transducer at a position other than the valve head.
The weight of the hydraulic jack pedestal 13, yoke 12, and pedestal 11 can be reduced.
本発明では、安全弁の作動を油圧トランスジユ
ーサで検知確認し、弁棒の荷重をロードセルで検
出するので、検知精度が良く、また熟練を要しな
い。また油圧ジヤツキへの油の供給および遮断を
電磁弁への電気信号により行なうので、人手を必
要とせず、また確実に行なうことができる。
In the present invention, the operation of the safety valve is detected and confirmed by a hydraulic transducer, and the load on the valve stem is detected by a load cell, so detection accuracy is high and no skill is required. Furthermore, since oil is supplied to and cut off from the hydraulic jack by an electric signal to the solenoid valve, it does not require human labor and can be done reliably.
第１図は、本発明の一実施例の概要を示す図、
第２図は、第１図中の試験装置の詳細図、第３
図は、従来の安全弁作動圧力試験の状況を示す図
である。
１…配管；２…安全弁；３…弁棒；４…手動式
ポンプ；５…油圧ジヤツキ；６…油圧計；７…タ
ーンバツクル；１５…ロードセル；１６…油圧ジ
ヤツキ；１７…油圧トランスジユーサ；１８…電
磁弁；１９…圧力トランスジユーサ；２１…セン
サアンプリレー；２２…計算機；２４…プリン
タ。
FIG. 1 is a diagram showing an outline of an embodiment of the present invention;
Figure 2 is a detailed diagram of the test equipment in Figure 1;
The figure is a diagram showing the situation of a conventional safety valve operating pressure test. 1... Piping; 2... Safety valve; 3... Valve rod; 4... Manual pump; 5... Hydraulic jack; 6... Oil pressure gauge; 7... Turnbuckle; 15... Load cell; 16... Hydraulic jack; 17... Hydraulic transducer; 18 ... Solenoid valve; 19... Pressure transducer; 21... Sensor amplifier relay; 22... Calculator; 24... Printer.
Claims (1)
油圧ジヤツキ；上記油圧ジヤツキに圧油を供給す
る流路に設けられた電磁弁；上記弁棒の荷重を検
出するロードセル；上記配管の内部の圧力を検出
する圧力トランスジユーサ；上記流路の内部の圧
力を検出する油圧トランスジユーサ；および上記
安全弁の作動に伴う油圧の変動を上記油圧トラン
スジユーサが検知したときに、上記電磁弁を閉じ
るとともに上記ロードセルと上記圧力トランスジ
ユーサの検出値を記録しそれら検出値から上記安
全弁の作動圧力を演算する手段を具備したことを
特徴とする安全弁作動圧力試験装置。1 Hydraulic jack that pulls up the valve stem of a safety valve attached to the piping; Electromagnetic valve installed in the flow path that supplies pressure oil to the hydraulic jack; Load cell that detects the load on the valve stem; Pressure inside the piping a pressure transducer that detects the pressure inside the flow path; and a hydraulic transducer that detects the pressure inside the flow path; and closes the solenoid valve when the hydraulic transducer detects a change in oil pressure due to the operation of the safety valve. A safety valve operating pressure testing device, further comprising means for recording the detected values of the load cell and the pressure transducer and calculating the operating pressure of the safety valve from the detected values.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62282126A JPH01124741A (en) | 1987-11-10 | 1987-11-10 | Testing device for safety valve operating pressure |
| CN88107732A CN1014354B (en) | 1987-11-10 | 1988-10-09 | Testing means for operation pressure of safety valve |
| FR8814430A FR2622950B1 (en) | 1987-11-10 | 1988-11-04 | APPARATUS FOR TESTING THE OPERATING PRESSURE OF A SAFETY VALVE |
| DE3837882A DE3837882A1 (en) | 1987-11-10 | 1988-11-08 | Device for testing the working pressure of a safety valve |
| KR1019880014769A KR920009022B1 (en) | 1987-11-10 | 1988-11-10 | Safty valve testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62282126A JPH01124741A (en) | 1987-11-10 | 1987-11-10 | Testing device for safety valve operating pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01124741A JPH01124741A (en) | 1989-05-17 |
| JPH0543984B2 true JPH0543984B2 (en) | 1993-07-05 |
Family
ID=17648458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62282126A Granted JPH01124741A (en) | 1987-11-10 | 1987-11-10 | Testing device for safety valve operating pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636479U (en) * | 1992-10-26 | 1994-05-17 | 渡辺 信喜 | Bath |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2544856B2 (en) * | 1991-09-26 | 1996-10-16 | 東北電力株式会社 | Safety valve operation test device |
| JPH05296883A (en) * | 1992-04-17 | 1993-11-12 | Nissei Eng Kk | Testing equipment of operation of safety valve |
| KR200322498Y1 (en) * | 2003-05-07 | 2003-08-09 | 남해화학주식회사 | safety valve testing system |
| CN102435425A (en) * | 2011-09-08 | 2012-05-02 | 浙江工业大学 | Safety valve on-line detector driven by stepping motor |
| CN102866008A (en) * | 2012-09-26 | 2013-01-09 | 南京市锅炉压力容器检验研究所 | Low-redundancy high-reliability intelligent checking device for safety valves and checking method utilizing checking device |
| KR101358085B1 (en) * | 2013-03-19 | 2014-02-04 | 한국기계연구원 | Device for high-speed valve of drive |
| CN104977161B (en) * | 2015-06-30 | 2017-12-08 | 浙江工业大学 | A kind of light micro hydraulic driving safety valve on-line testing instrument |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633542B2 (en) * | 1976-11-02 | 1981-08-04 | ||
| JPS57146974A (en) * | 1981-03-06 | 1982-09-10 | Keiji Inouchi | Test device for spring safety valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633542U (en) * | 1979-08-24 | 1981-04-02 |
-
1987
- 1987-11-10 JP JP62282126A patent/JPH01124741A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633542B2 (en) * | 1976-11-02 | 1981-08-04 | ||
| JPS57146974A (en) * | 1981-03-06 | 1982-09-10 | Keiji Inouchi | Test device for spring safety valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636479U (en) * | 1992-10-26 | 1994-05-17 | 渡辺 信喜 | Bath |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01124741A (en) | 1989-05-17 |
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