JP2001013032A - Pulsation water pressure-generating device for testing water pressure in pipe - Google Patents
Pulsation water pressure-generating device for testing water pressure in pipeInfo
- Publication number
- JP2001013032A JP2001013032A JP11183890A JP18389099A JP2001013032A JP 2001013032 A JP2001013032 A JP 2001013032A JP 11183890 A JP11183890 A JP 11183890A JP 18389099 A JP18389099 A JP 18389099A JP 2001013032 A JP2001013032 A JP 2001013032A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- water pressure
- pressure
- solenoid valve
- pulsation
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビル及びマンショ
ン等における空調・給排水・消火用等の配管の所謂水圧
検査に用いられるものであり、管路内へ動水圧を印加す
ることにより管路の接続不良や継手部の欠陥等を発見す
るようにした管内の水圧試験用脈動水圧発生装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for so-called water pressure inspection of pipes for air-conditioning, water supply and drainage, fire extinguishing, etc. in buildings and condominiums. The present invention relates to a pulsating water pressure generator for a water pressure test in a pipe in which a connection failure, a defect of a joint portion, or the like is found.
【０００２】[0002]
【従来の技術】一般に、オフィスビルやマンション等の
天井面や床面には、空調・給排水衛生・消火用等の多数
の配管が施工されており、それぞれの管路には仕切弁や
水栓等が多数設けられている。ところでこれ等の配管路
に対しては、通常配管施工の完了後に水圧試験が行わ
れ、管路の耐圧性や継手部等からの漏水の有無が検査さ
れている。2. Description of the Related Art Generally, a large number of pipes for air conditioning, plumbing and sanitation, fire extinguishing, etc. are installed on ceilings and floors of office buildings and condominiums, etc., and each pipe has a gate valve and a faucet. Many are provided. By the way, a water pressure test is performed on these pipe lines after the completion of the normal pipe construction, and the pressure resistance of the pipe lines and the presence or absence of water leakage from joints and the like are inspected.
【０００３】しかし、従前の水圧試験に於いては、水圧
ポンプを加圧源として、管路内へ静水圧を印加した状態
で全ての検査が行われており、管路内へ動水圧を加えた
状態下での耐圧漏水検査等は、一般に行われていない。
そのため、例えば地震の発生のように、管路内に衝撃的
な圧力が加わった際の管路内の耐圧性等については、不
明な点が多く残されており、結果として非常時に予測せ
ぬ損害を生じるという問題がある。[0003] However, in the conventional hydraulic test, all inspections are performed in a state in which a hydrostatic pump is used as a pressurizing source and a hydrostatic pressure is applied to the pipeline, and dynamic pressure is applied to the pipeline. Inspection of pressure-resistant leaks under the condition of being closed is not generally performed.
Therefore, there are many unclear points regarding the pressure resistance in the pipeline when shocking pressure is applied to the pipeline, such as the occurrence of an earthquake, and as a result, it cannot be predicted in an emergency. There is the problem of causing damage.
【０００４】また、従前の水圧ポンプ等を用いた静水圧
による配管路の耐圧テストでは、管路の接続不良や継手
部の欠陥が容易に露見せず、その結果、継手部等の欠陥
を見逃し易いという問題がある。[0004] In a conventional pressure test of a pipe line using hydrostatic pressure using a hydraulic pump or the like, a poor connection of the pipe line or a defect in a joint portion is not easily revealed, and as a result, a defect in the joint portion or the like is overlooked. There is a problem that it is easy.
【０００５】更に、近年住居用給水・給湯管路において
は、給水圧力の増大、ワンタッチ操作のシングルレバー
や自動ミキシングタイプの湯水混合栓の採用等により、
水栓操作時に水撃作用によって「ドン」という不快音を
発生する場合がしばしばある。この衝撃音は、弁や水栓
の開閉操作により管路内の圧力が変化し、配管が長い場
合には圧力変動が増幅されて配管路に外力として作用
し、管路が振動したり、管路と建屋とが接触したりする
ことにより生じると考えられている。Further, in recent years, in water supply / hot water supply pipes for residential use, water supply pressure has been increased, and a single lever of a one-touch operation and an automatic mixing type hot / water mixer tap have been adopted.
When operating a faucet, a water hammer action often produces an unpleasant sound "don". This impact noise changes the pressure in the pipeline due to the opening and closing operations of valves and faucets, and when the piping is long, the pressure fluctuation is amplified and acts as an external force on the piping, causing the pipeline to vibrate, It is thought to be caused by contact between the road and the building.
【０００６】しかし、建屋の完成後に、前記「ドン」と
いう音が発生するようなことがあっても、確かめる事は
困難であり、衝撃吸収器を設置しても必ず効果があると
は限らない。このように、従前の静水圧による管路の水
圧検査には、水撃作用等の影響を予め知る事が出来ない
と云う問題がある。However, even if the above-mentioned "don" is generated after the completion of the building, it is difficult to confirm it, and it is not always effective to install a shock absorber. . As described above, the conventional inspection of the hydraulic pressure of the pipeline by the hydrostatic pressure has a problem that the influence of the water hammer action or the like cannot be known in advance.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、従前の上記
した問題を解決することを目的とするものであり、衝撃
圧力等によるウォーターハンマー現象や、管の接続不
良、継手部の欠陥等を確実に発見することができ、より
高精能な配管路の水圧検査を可能とした管内の水圧試験
用脈動水圧発生装置を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to solve the problem of water hammer caused by impact pressure or the like, poor connection of pipes, defective joints, and the like. It is an object of the present invention to provide a pulsating water pressure generating device for a water pressure test in a pipe, which can be surely found and enables a more precise water pressure test of a pipeline.
【０００８】[0008]
【課題を解決するための手段】請求項１に記載の発明
は、ポンプから圧水が送入される第１配管と、第１配管
に介設した電磁弁と、前記電磁弁からの圧水を被検査配
管へ送出する第２配管と、前記電磁弁の吐出口側から分
岐した第３配管と、前記第３配管に介設した水圧脈動用
電磁弁と、前記第２配管に介設した圧力スイッチと、脈
動水圧の発生と静水圧の発生とを切換える切換スイッチ
と、前記第１配管、第２配管、第３配管、電磁弁、水圧
脈動用電磁弁、圧力スイッチ及び切換スイッチを収納す
る装置本体とを発明の基本構成とするものである。According to a first aspect of the present invention, there is provided a first pipe through which pressurized water is supplied from a pump, a solenoid valve interposed in the first pipe, and a pressurized water from the solenoid valve. , A third pipe branched from the discharge port side of the solenoid valve, a hydraulic pulsation solenoid valve provided on the third pipe, and a second pipe provided on the second pipe. A pressure switch, a changeover switch for switching between generation of pulsating water pressure and generation of hydrostatic pressure, and the first pipe, the second pipe, the third pipe, a solenoid valve, a solenoid valve for hydraulic pulsation, a pressure switch, and a changeover switch are housed. An apparatus main body is a basic configuration of the present invention.
【０００９】請求項２に記載の発明は、請求項１の発明
に於いて、水圧脈動用電磁弁の開・閉間隔をタイマーに
より制御し、脈動水圧のサイクル数を制御するようにし
たものである。According to a second aspect of the present invention, in the first aspect of the present invention, the opening / closing interval of the electromagnetic valve for hydraulic pulsation is controlled by a timer to control the number of cycles of the pulsating hydraulic pressure. is there.
【００１０】[0010]
【発明の実施の形態】以下、本発明に係る管内の水圧試
験用脈動水圧発生装置の実施の形態について、図を参照
しつつ説明する。図１〜図３は本発明に係る管内の水圧
試験用脈動水圧発生装置の外観を示し、図４〜図６はそ
の内部構造を示し、図７は、本発明の管内の水圧試験用
脈動水圧発生装置で発生させた脈動水圧を示すものであ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pulsating water pressure generating device for a water pressure test in a pipe according to the present invention will be described below with reference to the drawings. 1 to 3 show the appearance of a pulsating water pressure generator for hydraulic pressure test in a pipe according to the present invention, FIGS. 4 to 6 show the internal structure thereof, and FIG. 7 shows the pulsating hydraulic pressure for hydraulic pressure test in a pipe of the present invention. It shows the pulsating water pressure generated by the generator.
【００１１】本実施形態の管内の水圧試験用脈動水圧発
生装置は、図１〜図３に示すように、筐体からなる装置
本体１の前面の扉１１に、内部の電磁弁２、１０（図５
参照）を作動させるための押しボタン２１、１０１と、
動圧・静圧の切り換えをするための切換スイッチＳと、
タイマー４とが設けられている。更に、右側壁１２に
は、ポンプ５を接続するための第１配管６が内部から外
部に突出した状態で設けられ、左側壁１３には、水道管
や消火栓やスプリンクラー等の被検査配管路（図示略）
に接続するための第２配管８と、排水管としての第３配
管９とが内部から外部に突出した状態で設けられてい
る。As shown in FIGS. 1 to 3, the pulsating water pressure generator for in-pipe water pressure test according to the present embodiment has internal electromagnetic valves 2, 10 ( FIG.
Push buttons 21, 101 for actuating the
A changeover switch S for switching between dynamic pressure and static pressure;
A timer 4 is provided. Further, on the right side wall 12, a first pipe 6 for connecting the pump 5 is provided so as to protrude from the inside to the outside. On the left side wall 13, a pipe to be inspected such as a water pipe, a fire hydrant, a sprinkler or the like is provided. (Not shown)
And a third pipe 9 as a drain pipe protruding from the inside to the outside.
【００１２】その内部構造は、図４〜図６に示すよう
に、第１配管６と第２配管８との間には、電磁弁２と圧
力スイッチ３とが接続されており、この電磁弁２と圧力
スイッチ３との中間部分から平面視略Ｌ字形の排水管と
しての第３配管９が分岐接続されていて、この第３配管
９には脈動発生用電磁弁１０が設けられている。ここ
で、ポンプ５は管内に圧水を送り込むために設けられて
いる。また、第１配管６と第２配管８との間に設けられ
た電磁弁２は、ポンプ５からの導水を制御するためのも
のである。更に、排水管としての第３配管９の脈動発生
用電磁弁１０は、その開閉動作によって第２配管８内の
水圧を脈動水圧に変化させるために設けられている。The internal structure of the electromagnetic valve 2 and the pressure switch 3 is connected between the first pipe 6 and the second pipe 8, as shown in FIGS. A third pipe 9 serving as a drain pipe having a substantially L-shape in plan view is branched and connected from an intermediate portion between the pressure switch 2 and the pressure switch 3, and a pulsation generating solenoid valve 10 is provided in the third pipe 9. Here, the pump 5 is provided for sending pressurized water into the pipe. The electromagnetic valve 2 provided between the first pipe 6 and the second pipe 8 is for controlling water conduction from the pump 5. Further, the pulsation generating solenoid valve 10 of the third pipe 9 as a drain pipe is provided to change the water pressure in the second pipe 8 to a pulsating water pressure by opening and closing the pulsation.
【００１３】また、タイマー４は、脈動発生用電磁弁１
０に接続されていて、電磁弁１０の開閉回数を制御して
第２配管８の脈動水圧のサイクル数を制御するために設
けられている。尚、第２配管８には、脈動水圧の変化を
検出して被検査配管内の水圧を計るための脈動水圧検出
手段（図示略）が接続されている。The timer 4 is provided with a pulsation generating electromagnetic valve 1.
It is connected to 0 and is provided to control the number of cycles of the pulsating hydraulic pressure of the second pipe 8 by controlling the number of times the solenoid valve 10 is opened and closed. The second pipe 8 is connected to pulsating water pressure detecting means (not shown) for detecting a change in pulsating water pressure and measuring the water pressure in the pipe to be inspected.
【００１４】このような構成により、本実施形態の管内
の水圧試験用脈動水圧発生装置では、ポンプ５を駆動し
て第１配管６と第２配管８を経て被検査配管内に圧水を
送り込み、切換スイッチＳを動圧側へ切り換えると、電
磁弁１０が開閉動作し、第２配管８内に脈動水圧が発生
する。また、脈動水圧検出手段で管内の脈動水圧の変化
を検出し、管内の水圧の変化等から管の接続不良や継手
部の欠陥等を発見する。With such a configuration, in the pulsating water pressure generator for hydraulic test in the pipe of this embodiment, the pump 5 is driven to send the pressurized water into the pipe to be inspected through the first pipe 6 and the second pipe 8. When the changeover switch S is switched to the dynamic pressure side, the solenoid valve 10 opens and closes, and pulsating water pressure is generated in the second pipe 8. Further, the pulsating water pressure detecting means detects a change in the pulsating water pressure in the pipe, and detects a poor connection of the pipe, a defect in the joint portion, and the like from the change in the water pressure in the pipe.
【００１５】即ち、第１配管６と第２配管８との間の電
磁弁２を開いたままの状態として、第３配管９の水圧脈
動用電磁弁１０を開閉させると、第３配管からの排水量
が変化し、第２配管８内の水圧が脈動することになる。That is, when the electromagnetic valve 10 for water pressure pulsation of the third pipe 9 is opened and closed while the solenoid valve 2 between the first pipe 6 and the second pipe 8 is kept open, The amount of drainage changes, and the water pressure in the second pipe 8 pulsates.
【００１６】尚、電磁弁１０の開閉回数をタイマー４で
制御して、被検査配管内の脈動水圧のサイクル数を制御
することによって、管内に所定のサイクルの脈動水圧を
送り込むことができる。また、切換スイッチＳを静圧側
へ切り換えると、電磁弁１０は閉鎖され、第２配管８内
に静圧が加わることになる。更に、圧力スイッチ３が作
動すると、電磁弁２が閉鎖され、第２配管８内の加圧が
停止される。By controlling the number of times the solenoid valve 10 is opened and closed by the timer 4 to control the number of cycles of the pulsating hydraulic pressure in the pipe to be inspected, a pulsating hydraulic pressure of a predetermined cycle can be sent into the pipe. When the changeover switch S is switched to the static pressure side, the solenoid valve 10 is closed, and a static pressure is applied to the second pipe 8. Further, when the pressure switch 3 is operated, the solenoid valve 2 is closed, and the pressurization in the second pipe 8 is stopped.
【００１７】[0017]
【発明の効果】請求項１に記載の発明によれば、ポンプ
を駆動して第２配管を経て被検査管内に圧水を送り込
み、切換スイッチの動圧側への切り換えと、水圧脈動用
電磁弁の開閉動作によって、管内に脈動水圧を発生さ
せ、脈動水圧検出手段で管内の脈動水圧の変化を検出す
ることによって、衝撃圧力が加わった場合に於ける管の
接続不良や継手部の欠陥等をより確実に発見することが
できる。According to the first aspect of the present invention, the pump is driven to send the pressurized water through the second pipe into the pipe to be inspected, the changeover switch is switched to the dynamic pressure side, and the solenoid valve for hydraulic pulsation is provided. Pulsating water pressure is generated in the pipe by the opening and closing operation of the pipe, and the pulsating water pressure detecting means detects the change in the pulsating water pressure in the pipe. Can be found more reliably.
【００１８】請求項２に記載の発明によれば、各電磁弁
の開閉回数をタイマーで制御して、管内の脈動水圧のサ
イクル数を制御することによって、管内に所望のサイク
ルの脈動水圧を送り込むことができ、衝撃水圧の条件を
様々に変えた状態下で管路の検査を行なうことができ
る。According to the second aspect of the present invention, the number of times of opening and closing of each solenoid valve is controlled by a timer to control the number of cycles of the pulsating hydraulic pressure in the pipe, thereby sending a pulsating hydraulic pressure of a desired cycle into the pipe. It is possible to inspect the pipeline under various conditions of the impact water pressure.
【図１】本発明に係る管内の水圧試験用脈動水圧発生装
置の外観を示す斜視図である。FIG. 1 is a perspective view showing the appearance of a pulsating water pressure generator for a water pressure test in a pipe according to the present invention.
【図２】本発明に係る管内の水圧試験用脈動水圧発生装
置の正面図である。FIG. 2 is a front view of a pulsating water pressure generating device for a water pressure test in a pipe according to the present invention.
【図３】本発明に係る管内の水圧試験用脈動水圧発生装
置の右側面図である。FIG. 3 is a right side view of the pulsating water pressure generator for water pressure test in a pipe according to the present invention.
【図４】本発明に係る管内の水圧試験用脈動水圧発生装
置の内部構造を示す正面断面図である。FIG. 4 is a front sectional view showing an internal structure of a pulsating water pressure generating device for a water pressure test in a pipe according to the present invention.
【図５】本発明に係る管内の水圧試験用脈動水圧発生装
置の内部構造を示す平面断面図である。FIG. 5 is a cross-sectional plan view showing the internal structure of the pulsating water pressure generating device for a water pressure test in a pipe according to the present invention.
【図６】本発明に係る管内の水圧試験用脈動水圧発生装
置の内部構造を示す側面断面図である。FIG. 6 is a side sectional view showing an internal structure of a pulsating water pressure generating device for a water pressure test in a pipe according to the present invention.
【図７】本発明に係る管内の水圧試験用脈動水圧発生装
置で発生させた管内の脈動水圧を示すグラフである。FIG. 7 is a graph showing the pulsating water pressure in the pipe generated by the pulsating water pressure generator for water pressure test in the pipe according to the present invention.
１ 装置本体 ２ 電磁弁 ３ 圧力スイッチ ４ タイマー ５ ポンプ ６ 第１配管 ８ 第２配管 ９ 第３配管（排水管） １０ 水圧脈動用電磁弁 Ｓ 切換スイッチ DESCRIPTION OF SYMBOLS 1 Device main body 2 Solenoid valve 3 Pressure switch 4 Timer 5 Pump 6 1st piping 8 2nd piping 9 3rd piping (drainage pipe) 10 Electromagnetic valve for water pressure pulsation S changeover switch
Claims (2)
と、第１配管に介設した電磁弁と、前記電磁弁からの圧
水を被検査配管へ送出する第２配管と、前記電磁弁の吐
出口側から分岐した第３配管と、前記第３配管に介設し
た水圧脈動用電磁弁と、前記第２配管に介設した圧力ス
イッチと、脈動水圧の発生と静水圧の発生とを切換える
切換スイッチと、前記第１配管、第２配管、第３配管、
電磁弁、水圧脈動用電磁弁、圧力スイッチ及び切換スイ
ッチを収納する装置本体とから構成した管内の水圧試験
用脈動水圧発生装置。A first pipe through which pressurized water is supplied from a pump; a solenoid valve interposed in the first pipe; a second pipe for sending pressurized water from the solenoid valve to a pipe to be inspected; A third pipe branched from the discharge port side of the solenoid valve, a hydraulic pulsation solenoid valve provided in the third pipe, a pressure switch provided in the second pipe, generation of pulsating water pressure and generation of hydrostatic pressure A first switch, a second tube, a third tube,
A pulsating water pressure generating device for a water pressure test in a pipe, comprising a solenoid valve, a solenoid valve for water pressure pulsation, a device body containing a pressure switch and a changeover switch.
ーにより制御し、脈動水圧のサイクル数を制御する構成
とした請求項１に記載の管内の水圧試験用脈動水圧発生
装置。2. The pulsating hydraulic pressure generator for in-pipe hydraulic pressure testing according to claim 1, wherein the opening and closing intervals of the hydraulic pulsating electromagnetic valve are controlled by a timer to control the number of cycles of the pulsating hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11183890A JP2001013032A (en) | 1999-06-29 | 1999-06-29 | Pulsation water pressure-generating device for testing water pressure in pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11183890A JP2001013032A (en) | 1999-06-29 | 1999-06-29 | Pulsation water pressure-generating device for testing water pressure in pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001013032A true JP2001013032A (en) | 2001-01-19 |
Family
ID=16143614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11183890A Pending JP2001013032A (en) | 1999-06-29 | 1999-06-29 | Pulsation water pressure-generating device for testing water pressure in pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001013032A (en) |
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| CN107389365A (en) * | 2017-06-13 | 2017-11-24 | 珠海格力智能装备有限公司 | Entropy detection equipment for air conditioner outdoor unit |
| CN110261138A (en) * | 2019-07-22 | 2019-09-20 | 深圳万测试验设备有限公司 | A kind of inspection improvement structure, cruising inspection system and method for inspecting applied to pressures cycle durability test |
-
1999
- 1999-06-29 JP JP11183890A patent/JP2001013032A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100775419B1 (en) | 2007-04-23 | 2007-11-12 | 김분희 | Hydrolic tester |
| CN107389365A (en) * | 2017-06-13 | 2017-11-24 | 珠海格力智能装备有限公司 | Entropy detection equipment for air conditioner outdoor unit |
| CN110261138A (en) * | 2019-07-22 | 2019-09-20 | 深圳万测试验设备有限公司 | A kind of inspection improvement structure, cruising inspection system and method for inspecting applied to pressures cycle durability test |
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