JPS63297775A - No-water hammer pumping device - Google Patents
No-water hammer pumping deviceInfo
- Publication number
- JPS63297775A JPS63297775A JP62134569A JP13456987A JPS63297775A JP S63297775 A JPS63297775 A JP S63297775A JP 62134569 A JP62134569 A JP 62134569A JP 13456987 A JP13456987 A JP 13456987A JP S63297775 A JPS63297775 A JP S63297775A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- closing force
- force member
- valve closing
- support shaft
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 35
- 238000005086 pumping Methods 0.000 title claims description 19
- 230000001133 acceleration Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、逆止弁を設けた揚水装置において、この逆
止弁の構造を、ポンプへの入力が絶たれたとき、管内吐
出方向流れが、慣性力を失い停止する時点で着座するよ
う、弁体部およびその付近の流路形状を相定め構成させ
て、管内水の逆流を阻止し、水撃発生の要因を断つ揚水
装置に係り、特許第４５２６１５号（特公昭４０−８６
５４号）「無水撃揚水装置」並びに特許第８５１９７７
号（特公昭５１−２５９３０号）「無水撃揚水装置の改
良」を基本的技術とし、更にその技術概念を管路条件が
複雑で、各所に水柱分離の発生を予測されるような揚水
系、循環系装置にまで展開させた特許第１２３７３５６
号（特公昭５７−０３８７９６号）「管路内における水
柱分離の発生を積極的に容認した揚水装置」に関連する
技術の、改良に関する。そして、以下説明上、これらの
発明を総称的に原発明と呼称する。DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention provides a water pumping device equipped with a check valve, in which the structure of the check valve is adjusted to the direction of discharge in the pipe when the input to the pump is cut off. This is a water pumping device that prevents the backflow of water in the pipe and cuts off the causes of water hammer by configuring the valve body and the flow path around it so that the flow reaches the point where it loses its inertia and stops. Related Patent No. 452615 (Special Publication No. 40-86
No. 54) “Non-water hammer pumping device” and Patent No. 851977
No. (Special Publication No. 51-25930) ``Improvement of non-water hammer pumping device'' is the basic technology, and the technical concept is further applied to pumping systems with complex pipe conditions and where water column separation is expected to occur at various locations. Patent No. 1237356 developed into a circulatory system device
No. (Japanese Patent Publication No. 57-038796) relates to improvements in technology related to ``storage pumping equipment that actively allows the occurrence of water column separation in pipes.'' In the following description, these inventions will be collectively referred to as the original invention.
（ロ）従来の技術
揚水装置に設けた逆止弁が、ポンプ停止時の急激な管内
流速の変化に追従できず、その逆流過程で着座すると、
弁閉鎖の瞬間に、弁下流側（弁吐出側の管路内）で水撃
現象を生じ、また管路条件によっては、水柱分離による
水撃をも誘発して、重大事故にいたることがある。(b) Conventional technology If the check valve installed in the water pumping device is unable to follow the sudden change in the flow velocity in the pipe when the pump is stopped, and the check valve is seated during the reverse flow process,
At the moment the valve closes, a water hammer phenomenon occurs on the downstream side of the valve (in the pipeline on the valve discharge side), and depending on the pipeline conditions, water hammer may also occur due to separation of the water column, leading to a serious accident. .
従来、この上うな水撃作用を防止する揚水装置として、
主に次の（Ａ）、（Ｂ）に述べる技術がある。すなわち
（Ａ）弁部材に制動手段を設けて、その動作を緩慢にし
、更には水撃による上昇圧力を、逃避、緩衝させる自動
弁装置や、サージタンクを配備することにより、シフツ
クの緩和を計る、言わば消極的な、対症療法的手段を用
いた揚水装置、と（Ｂ）原発明の公告広報明細書に見ら
れるように、慣性による正方向流れが停止するとき、弁
着座する逆上弁装置を設けることにより、逆流現象を生
じさせないようにして、積極的に水撃発生の要因を断っ
た揚水装置とがあるが、本発明はこの（Ｂ）項揚水装置
を改良するものである。Conventionally, as a pumping device to prevent this kind of water hammer effect,
There are mainly techniques described in (A) and (B) below. In other words, (A) the valve member is provided with a braking means to slow down its operation, and furthermore, an automatic valve device or a surge tank is installed to escape and buffer the rising pressure caused by water hammer, thereby alleviating the shift. (B) A reverse valve device that seats when the forward flow due to inertia stops, as seen in the public notice of the original invention. There is a water pumping device that actively eliminates the cause of water hammer by preventing the occurrence of a backflow phenomenon by providing a water hammer, but the present invention improves this water pumping device in accordance with item (B).
（ハ）発明が解決しようとする問題点
従来の無水撃揚水装置は、ポンプへの入力が急に絶たれ
た場合、管内水柱の慣性による、吐出方向流れが止まっ
た時に、はぼ着座する構造にした逆上弁を設けたもので
あるが、この慣性流動を続ける時間の大小は、ポンプ停
止の瞬間に管内水柱が保有する慣性流動力と、この水柱
に作用する外力（重力、出口側圧力など）とに関係し、
状況によっては、その値（水柱の慣性流動時間）が、甚
だ小さくなる場合も多い。(c) Problems to be solved by the invention Conventional waterless hammer pumping devices have a structure in which when the input to the pump is abruptly cut off, the inertia of the water column in the pipe causes the flow in the discharge direction to stop, and the system springs to a seat. However, the length of time this inertial flow continues depends on the inertial flow force held by the water column in the pipe at the moment the pump stops, and the external forces acting on this water column (gravity, outlet pressure). etc.) and
Depending on the situation, this value (the inertial flow time of the water column) can often become extremely small.
例えば、ポンプの近くに設けた圧力タンクに注水する場
合とか、近接して設置した複数のポンプによ°る並列運
転中、急にその一台が停止したような場合などである。For example, this may occur when water is injected into a pressure tank installed near a pump, or when multiple pumps installed in close proximity are running in parallel and one of them suddenly stops.
それは、これらの装置では、逆止弁下流側の管路が短い
ので、ポンプの急停止時に、この管路内水柱が保有する
慣性流動力は小さく、それに比べて、圧力タンクの圧力
や、並列運転中の隣接ポンプの吐出圧力は、この水柱を
逆流させる力として作用し、その逆流に転じる時間を著
しく早めるからと言える。In these devices, the pipeline downstream of the check valve is short, so when the pump suddenly stops, the inertial flow force held by the water column in this pipeline is small, and compared to that, the pressure in the pressure tank and the parallel This is because the discharge pressure of the adjacent pump in operation acts as a force that causes this water column to flow backwards, significantly accelerating the time it takes for the water column to flow backwards.
従来の無水撃揚水装置においては、逆止弁の構造は、弁
の閉鎖運動を阻害しないように構成されていて、その自
重による降下だけで、適正な弁閉鎖運動の設定ができ、
なお若干の誤差があれば、原発明明細書に述べているよ
うに、弁部材と一体的に結合する弁体補償部（付加の形
状修正部、重量、ばね、など）により、その補正をして
いた。In conventional non-water hammer pumping equipment, the structure of the check valve is configured so as not to obstruct the closing movement of the valve, and the appropriate valve closing movement can be set simply by the drop due to its own weight.
Furthermore, if there is a slight error, it can be corrected by a valve body compensation section (additional shape correction section, weight, spring, etc.) that is integrally combined with the valve member, as stated in the specification of the original invention. was.
しかしながら、このような弁部構造も、上述した実例、
即ち複数台ポンプの並列運転中、一台停止した際に生じ
るような、激しい逆流に対しては、質量が有りすぎて、
弁の慣性抵抗が大きく、適正な弁閉鎖運動の設定は困難
であるという欠点があった。However, such a valve part structure also has the above-mentioned example,
In other words, it has too much mass to withstand the strong backflow that occurs when one pump is stopped during parallel operation of multiple pumps.
The disadvantage is that the inertial resistance of the valve is large and it is difficult to set an appropriate valve closing motion.
この発明は、無水撃揚水装置において、その構成要素で
ある逆止弁装置につき、上記問題点を解消し、同時に、
多様化が計りやすい構成となし、設計、生産を容易にし
て、製造価格を低減させ、一層簡単で経済的な無水撃揚
水装置を提供することを目的とする。This invention solves the above-mentioned problems regarding the check valve device that is a component of the non-water hammer pumping device, and at the same time,
The purpose of the present invention is to provide a simpler and more economical water hammer pumping device that has a structure that is easily diversified, facilitates design and production, and reduces manufacturing costs.
（ニ）問題点を解決するための手段
この発明を図面にもとづいて説明すると、第１図におい
て、■は揚水ポンプ（図示は省略する）からの配管の適
所に、装置仕られた逆止弁装置の弁箱であり、ａ、ｂは
、それぞれ弁箱の入口流路と、出口流路とを示す。２は
弁座、３は逆止弁の弁部である。(d) Means for Solving Problems This invention will be explained based on the drawings. In Fig. 1, ■ indicates a check valve installed in an appropriate place in the piping from the water pump (not shown). This is a valve box of the device, and a and b indicate an inlet flow path and an outlet flow path of the valve box, respectively. 2 is a valve seat, and 3 is a valve portion of the check valve.
弁部３は、これに一体的に設けたちょうつがい部４によ
り、弁揺動支持軸５を介して弁座２の出口側に臨み揺動
自在に支持されている。The valve portion 3 faces the outlet side of the valve seat 2 via a valve swinging support shaft 5 and is swingably supported by a hinge portion 4 provided integrally therewith.
以上において、弁部３、ちょうつがい部４は、出来る限
り軽く、しかも、逆止弁部材として必要な強度を備えた
構造に、形成されている。In the above, the valve portion 3 and the hinge portion 4 are formed to have a structure that is as light as possible and has the strength necessary as a check valve member.
６は弁閉力部材であって、弁部３上方の弁揺動支持軸５
に近く位置し、重い材質からなり、嵩張らず、そして保
持部材８をガイドとして上下方向に変位可能に保持され
ている。Reference numeral 6 denotes a valve closing force member, which is attached to a valve swing support shaft 5 above the valve portion 3.
It is made of a heavy material, is not bulky, and is held movably in the vertical direction using the holding member 8 as a guide.
以上の構成において、弁閉力部材６の重さは、該部材６
の下端部７と、弁部３に一体的に設けた受け部材９との
連係により、弁部３を閉鎖方向に加速する弁閉力として
作用する。In the above configuration, the weight of the valve closing force member 6 is
The lower end 7 of the valve body 3 acts in conjunction with the receiving member 9 integrally provided on the valve body 3 to act as a valve closing force that accelerates the valve body 3 in the closing direction.
１０は弁箱蓋であり、１１．１２はそれぞれ弁箱の人口
側、出口側に接続する管路部分とする。10 is a valve box lid, and 11 and 12 are conduit portions connected to the valve box's inlet side and outlet side, respectively.
（ホ）作用
上記のように構成した逆止弁装置は、弁部３の質量が小
さいので、慣性モーメントが小さく、そして、弁揺動支
持軸５に近い弁閉力部材６は、その重力も自由に大きく
出来るので、弁部３の加速度は、従来のものに比べ自由
に大きくできる。(E) Function In the check valve device configured as described above, the mass of the valve portion 3 is small, so the moment of inertia is small, and the valve closing force member 6 close to the valve swing support shaft 5 also has a gravitational force. Since it can be increased freely, the acceleration of the valve section 3 can be increased freely compared to the conventional one.
（へ）実施例
本発明の実施にあたっては、弁閉力部材６を分割して標
準化し、それを適当に組み合わせることにより、管路の
実状に適した重量となし、簡単容易に、弁閉鎖運動の設
定を行うことができる。(F) Example In carrying out the present invention, the valve closing force member 6 is divided and standardized, and by combining them appropriately, the weight can be adjusted to suit the actual condition of the pipeline, and the valve closing force member 6 can be easily and easily operated. settings can be made.
尚、弁閉力部材６の位置に、ばねを組み合わせて、弁閉
力の安定を計り、さらにまた、その下端部７にローラー
を設けて作動の円滑を計ることもある。A spring may be combined at the position of the valve closing force member 6 to stabilize the valve closing force, and a roller may also be provided at the lower end 7 to ensure smooth operation.
（ト）発明の効果
この発明は以上説明したように、簡単な構造において、
軽い弁部を、強い弁閉力により、閉鎖できるので、従来
では、困難とした急激な慣性流動の状態変化にも、容易
かつ簡単に、対応できる無水撃揚水装置を実現できた。(g) Effect of the invention As explained above, this invention has a simple structure,
Since the light valve part can be closed with a strong valve closing force, it has been possible to realize a non-water hammer pumping device that can easily and simply cope with sudden changes in the state of inertial flow, which were difficult to do in the past.
そして、従来のものの弁部材と異なり、構造的に弁部３
は一定の形状となるから、従来のものに比べて、製造、
管理が容易で、著しく原価を下げることが出来た。しか
も、弁閉力部材６が小さく分解、組み立てし易い事は、
特に大規模送水施設の各所に設置する大口径逆止弁装置
などにおいて、設計、製造、実用テスト、維持管理のあ
らゆる面で優れた効果をあけることができ、実施効果の
顕著さは従来技術と比較し極めて大きい。And, unlike conventional valve members, the valve part 3 is structurally
Since it has a certain shape, it is easier to manufacture and use than conventional ones.
It was easy to manage and could significantly reduce costs. Moreover, the valve closing force member 6 is small and easy to disassemble and assemble.
In particular, for large-diameter check valve devices installed at various locations in large-scale water supply facilities, superior effects can be achieved in all aspects of design, manufacturing, practical testing, and maintenance management, and the implementation effects are more pronounced than conventional technology. Extremely large in comparison.
第１図はこの発明に係る逆止弁装置の縦断面図、第２図
は従来の逆止弁装置の縦断面図を示す。
！、・・・弁箱本体、２．・・・弁座、３．・・・弁部
、４、・・・ちょうつがい部、５．・・・弁揺動支持軸
、６、・・・弁閉力部材、７．・・・下端部、８．・・
・保持部材、９．・・・受け部材、１０．・・・弁箱蓋
、１１．１２．・・・管路端、ａ、・・・人口流路、ｂ
、・・・出口流路。
′ｌｔ回FIG. 1 is a longitudinal sectional view of a check valve device according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional check valve device. ! , . . . Valve box body, 2. ...Valve seat, 3. . . . Valve portion, 4. . . Hinging portion, 5. . . . Valve swing support shaft, 6. . . Valve closing force member, 7. ...lower end, 8.・・・
- Holding member, 9. ...Receiving member, 10. ...Valve box lid, 11.12. ... Pipe end, a, ... Population flow path, b
,... Outlet flow path. 'lt times
Claims (1)
吐出方向流れが慣性を失い停止する時点で、着座するよ
う弁部及びその付近の流路構造を相定め形成した逆止弁
を備え、構成させた無水撃揚水装置において、 「イ」弁部（３）は、これに一体的に設けたちょうつが
い部（４）によって、弁揺動支 持軸（５）を介し弁座（２）の出口側に臨 んで、揺動自在に支持されている。 「ロ」弁部（３）は、出来る限り軽量に形 成させる。 「ハ」弁箱内において、弁箱に設けた保持部材（８）に
より、変位自在に保持した弁閉 力部材（６）を、弁揺動支持軸（５）に近 付け装置する。 「ニ」弁閉力部材（６）の下端部（７）を、弁部（３）
に一体的に設けた受け部材（９）に連係させる。 以上の如く構成された、無水撃揚水装置。[Scope of Claims] 1. The flow path structure of the valve part and its vicinity is adjusted so that when the input to the pump is cut off, the flow in the discharge direction in this pumping pipe loses inertia and stops. In the non-water hammer pumping device configured with the check valve, the "A" valve part (3) is connected to the valve swing support shaft (5) by the hinge part (4) integrally provided therein. The valve seat (2) faces the outlet side of the valve seat (2) through the valve seat (2) and is supported so as to be swingable. The "b" valve part (3) is formed to be as lightweight as possible. ``C'' Within the valve box, the valve closing force member (6) held movably by the holding member (8) provided on the valve box is brought close to the valve swing support shaft (5). ``D'' Connect the lower end (7) of the valve closing force member (6) to the valve part (3).
It is linked to a receiving member (9) provided integrally with. The non-water hammer pumping device configured as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134569A JP2707078B2 (en) | 1987-05-28 | 1987-05-28 | Swing type anhydrous hammer check valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134569A JP2707078B2 (en) | 1987-05-28 | 1987-05-28 | Swing type anhydrous hammer check valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63297775A true JPS63297775A (en) | 1988-12-05 |
| JP2707078B2 JP2707078B2 (en) | 1998-01-28 |
Family
ID=15131406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62134569A Expired - Lifetime JP2707078B2 (en) | 1987-05-28 | 1987-05-28 | Swing type anhydrous hammer check valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2707078B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0324377A (en) * | 1989-06-21 | 1991-02-01 | Hidekuni Yokota | Swing type non-water-hammer check valve device |
| JPH0743673U (en) * | 1994-12-19 | 1995-09-05 | 伸五 横田 | Swing-type non-water hammer check valve device |
| KR100765949B1 (en) | 2006-12-08 | 2007-10-15 | 주식회사현대밸브 | Non return valve |
-
1987
- 1987-05-28 JP JP62134569A patent/JP2707078B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0324377A (en) * | 1989-06-21 | 1991-02-01 | Hidekuni Yokota | Swing type non-water-hammer check valve device |
| JPH0743673U (en) * | 1994-12-19 | 1995-09-05 | 伸五 横田 | Swing-type non-water hammer check valve device |
| KR100765949B1 (en) | 2006-12-08 | 2007-10-15 | 주식회사현대밸브 | Non return valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2707078B2 (en) | 1998-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1996018054A1 (en) | Non-water hammering check valve device | |
| JP2683880B2 (en) | Combined actuation non-water hammer check valve device | |
| CN103334920A (en) | Inclined plate check valve | |
| CN107850268A (en) | Possess water piping system and its control method with the check-valves for crashing mitigation capability | |
| JP3993637B2 (en) | Non-Water Hammer Check Valve Device | |
| CN103542138A (en) | Airbag type ventilation and drainage positive and negative pressure water hammer control valve group | |
| JPS63297775A (en) | No-water hammer pumping device | |
| JPH0324377A (en) | Swing type non-water-hammer check valve device | |
| JP2592981Y2 (en) | Swing type anhydrous hammer check valve device | |
| JPH08254276A (en) | Non-water-hammer check valve device | |
| CN204803996U (en) | From gaseous isolator of mode | |
| WO2020111057A1 (en) | Exhaust valve | |
| CN104947756A (en) | Self-adjustable type gas isolator | |
| CN111759125A (en) | Child seat with safety protection function | |
| CN2921495Y (en) | Non-return valve | |
| JPH01195990A (en) | Non-water-hammer pumping device | |
| JPS6360274B2 (en) | ||
| CN216112673U (en) | Pipeline fluid control valve | |
| AU2021406566B2 (en) | Valve device | |
| CN217539163U (en) | External control type structure of stacked hydraulic control one-way valve | |
| CN203394742U (en) | Inclined plate check valve | |
| CN208719473U (en) | A kind of safety device of civic building tap water transfer pipeline | |
| AU2016424703B2 (en) | Contamination-preventing micro-resistance slow-closing check valve and industrial drainage system | |
| CN209687842U (en) | A kind of pipeline shunt control device and system | |
| US746640A (en) | Automatic shut-off valve. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071017 Year of fee payment: 10 |