JP2015113970A - Header pipe or discharge pipe and pump facility - Google Patents

Header pipe or discharge pipe and pump facility Download PDF

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JP2015113970A
JP2015113970A JP2013258993A JP2013258993A JP2015113970A JP 2015113970 A JP2015113970 A JP 2015113970A JP 2013258993 A JP2013258993 A JP 2013258993A JP 2013258993 A JP2013258993 A JP 2013258993A JP 2015113970 A JP2015113970 A JP 2015113970A
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pipe
header pipe
check valve
inflow
discharge pipe
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晴海 田邉
Harumi Tanabe
晴海 田邉
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ACC TOHOKU CO Ltd
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ACC TOHOKU CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To facilitate maintenance work by miniaturizing pump facilities and reducing manufacturing costs by consolidation of header pipe components in the pump facilities, and to facilitate drainage work for a downstream-side conveying pipe.SOLUTION: Check valves 22a and 22b, water stop valves 27a and 27b, air vent valves 33a and 33b, and a water hammer prevention function are imparted to a header pipe 20 for use in conventional pump facilities to contribute to miniaturization and cost reduction. Check valve forced-movement functions 30a and 30b are added to enable internal drainage and facilitate maintenance work easily.

Description

本発明は、各種の水処理に用いられるポンプ施設に用いられるヘッダー管または吐出管と、そのヘッダー管または吐出管が取り付けられたポンプ施設に関する。   The present invention relates to a header pipe or a discharge pipe used in pump facilities used for various water treatments, and a pump facility to which the header pipe or the discharge pipe is attached.

上水、下水、農工業用の用水などの利用には、ポンプ施設は必須である。図4は、マンホールなどに設置されている一般的なポンプ施設の外観を示す概略図である。図4において、40はマンホール、41はヘッダー管、42は流入管、43a、43bは立ち上がり管、44a、44bは空気抜き弁、45a、45bは逆止弁、46a、46bは止水弁、47a、47bはポンプ、48a、48bは水吸入口、49は圧送管である。   Pump facilities are indispensable for the use of clean water, sewage, and agricultural water. FIG. 4 is a schematic diagram showing an external appearance of a general pump facility installed in a manhole or the like. 4, 40 is a manhole, 41 is a header pipe, 42 is an inflow pipe, 43a and 43b are rising pipes, 44a and 44b are air vent valves, 45a and 45b are check valves, 46a and 46b are water stop valves, 47a, 47b is a pump, 48a and 48b are water inlets, and 49 is a pressure feed pipe.

図4に示したように、マンホールなどに設置されているポンプ施設は、2台のポンプ47a、47bが配置され、処理量に応じて、いずれか一方または両方のポンプを作動させるのが一般的であり、吸い上げられた水は、ヘッダー管41を経由して圧送される。このため、それぞれのポンプに、立ち上がり管、逆止弁、止水弁、ウォーターハンマー防止機能付弁体が必要となり、製造コストや据え付け工事費の増加に繋がっている。   As shown in FIG. 4, in a pump facility installed in a manhole or the like, two pumps 47a and 47b are generally arranged, and one or both pumps are operated according to the processing amount. The sucked water is pumped through the header pipe 41. For this reason, each pump needs a rising pipe, a check valve, a water stop valve, and a valve body with a water hammer prevention function, which leads to an increase in manufacturing cost and installation work cost.

ウォーターハンマーとは、一定の圧力で管内を搬送されている流体の流れを、弁などの操作により急激に停止した際に、流体の慣性によって、管内に急激な圧力上昇や衝撃が生じる現象であり、これに対処するために、フライホール付ポンプ、エアーベッセルなどが必要となり、多大なコストを強いられている。   Water hammer is a phenomenon in which when the flow of fluid transported in a pipe at a constant pressure is suddenly stopped by the operation of a valve or the like, a sudden increase in pressure or impact occurs in the pipe due to the inertia of the fluid. In order to cope with this, a pump with a flyhole, an air vessel, and the like are required, and a great deal of cost is imposed.

この対策として、本発明者は、特許文献1、特許文献2、特許文献3において、逆止弁、止水弁、ウォーターハンマー防止の機能を、ヘッダー管に付与して集約することで、部品点数の減少し、ひいては製造コストと据え付け工事費の低減が可能となることを開示している。しかし、ここに開示されているポンプ施設においても、なお部品点数の削減とコンパクト化、トラブルの発生頻度減少、及び工具無しでしかも短時間で、閉塞などのトラブルへの対応が不十分な他、トラブル解消作業のために必要な、ヘッダー管内部や、下流側圧送管の水抜きに十分に対応できていないのが実状である。   As a countermeasure against this, the present inventor in Patent Literature 1, Patent Literature 2, and Patent Literature 3 assigns the check valve, the water stop valve, and the water hammer prevention function to the header pipe and aggregates them. It is disclosed that manufacturing costs and installation costs can be reduced. However, even in the pump facility disclosed here, the number of parts is reduced and the size is reduced, the frequency of occurrence of trouble is reduced, and there is no tool and the response to troubles such as blockage is insufficient in a short time. The actual situation is that it does not sufficiently cope with the drainage of the header pipe and the downstream pumping pipe, which are necessary for trouble-solving work.

特許第4960520号Patent No. 4960520 特許第5150859号Japanese Patent No. 5150859 特許第5298281号Patent No. 5298281

従って、本発明の課題は、前記発明に係る、ポンプ施設において、部品のさらなる集約化による、ポンプ施設の小型化及び製造コスト低減、下流側圧送管の水抜き作業を容易にすることによる、工具無しでしかも短時間で閉塞等のトラブル対応、及び据え付け工事費の削減を図ることである。   Accordingly, an object of the present invention is to provide a tool according to the above-mentioned invention by facilitating the downsizing and manufacturing cost reduction of the pump facility and the drainage work of the downstream side pressure feed pipe by further consolidating parts. The aim is to deal with troubles such as clogging and reduce installation costs in a short time.

本発明者は、前記の課題に鑑み、ポンプ設備の構造について再検討を行った結果、逆止弁と、止水弁と、弁体底部にウォーハンマー防止機能と、弁体の強制移動による弁体閉塞解放機能と、水抜き機能とをヘッダー管に組み込むことが可能であることを見出し、本発明をなすに至ったものである。   As a result of reviewing the structure of the pump equipment in view of the above problems, the present inventor has found a check valve, a water stop valve, a warhammer prevention function at the bottom of the valve body, and a valve by forced movement of the valve body. The present inventors have found that a body blockage releasing function and a water draining function can be incorporated into a header pipe, and have made the present invention.

即ち、本発明は、流入口を有する少なくとも一つの流入路と、前記流入路に連通する流出口を有する少なくとも一つの流出路と、前記流入路の部分に設けられてなる逆止弁と、前記流入口を閉塞する機能を有する止水弁とを有するヘッダー管または吐出管において、前記逆止弁は、前記流入口を閉塞する形状を有し、前記流入口に設けられた弁座と、前記流入口の下流側に設けられてなる退避路との間を移動するように配置されてなり、前記止水弁は、前記流入口に対向する部分に設けられた雌ネジに螺合されてなる雄ネジを有する部材に取り付けられ、前記雄ネジの回転により、前記逆止弁を前記流入口の方向に移動させて流入口を閉塞する機能を有し、前記雌ネジが設けられた部分と前記逆止弁の間に配置されてなる圧縮バネを有するウォーターハンマー防止機能が設けられてなることを特徴とする、ヘッダー管または吐出管である。   That is, the present invention provides at least one inflow path having an inflow port, at least one outflow path having an outflow port communicating with the inflow path, a check valve provided in a portion of the inflow path, In a header pipe or a discharge pipe having a water stop valve having a function of closing the inflow port, the check valve has a shape for closing the inflow port, and a valve seat provided in the inflow port, It is arranged so as to move between a retreat path provided on the downstream side of the inflow port, and the water stop valve is screwed into a female screw provided in a portion facing the inflow port. It is attached to a member having a male screw, and has a function of closing the inlet by moving the check valve in the direction of the inlet by rotation of the male screw, and the portion provided with the female screw and the part C having a compression spring disposed between check valves Over coater hammer prevention function, characterized in that it is provided a header pipe or discharge pipe.

また、本場発明は、前記逆止弁が、前記雌ネジの近傍に設けられた第二の雌ネジに螺合された、第二の雄ネジに接合されたケーブルに緊結され、前記第二の雄ネジの回転により、前記ケーブルを介して退避路に移動されることによって、前記ヘッダー管または吐出管の内部の水抜きを可能とする、逆止弁強制移動機能を有することを特徴とする、前記のヘッダー管または吐出管である。   Further, in the present invention, the check valve is fastened to a cable joined to a second male screw, which is screwed to a second female screw provided in the vicinity of the female screw, and the second valve It has a check valve forced movement function that enables drainage inside the header pipe or the discharge pipe by being moved to the retreat path through the cable by the rotation of the male screw. Said header pipe or discharge pipe.

また、本発明は、前記のヘッダー管または吐出管を有することを特徴とするポンプ施設である。   The present invention also provides a pump facility having the header pipe or the discharge pipe.

本発明によるポンプ施設は、従来ヘッダー管または吐出管とは別部品として設けられていた逆止弁、止水弁、ウォーターハンマー防止機能、管内の水抜きの機能をヘッダー管に集約してあるので、部品数が減少し、製造コストと据え付け工事費が削減されるとともに、構造の簡略化に伴い、故障の発生頻度減少及び工具無しで、しかも、短時間で閉塞等のトラブル対応が期待できるので、メインテナンス費用の削減も可能となる。   In the pump facility according to the present invention, the check valve, the water stop valve, the water hammer prevention function, and the water drain function in the pipe, which have been conventionally provided as separate parts from the header pipe or the discharge pipe, are concentrated in the header pipe. As the number of parts is reduced, manufacturing costs and installation work costs are reduced, and with the simplification of the structure, it is possible to expect troubles such as clogging in a short time without the occurrence of failures and without tools. Also, maintenance costs can be reduced.

本発明に係るヘッダー機能を有するポンプ施設の一例の外観を示す概略図。Schematic which shows the external appearance of an example of the pump facility which has a header function based on this invention. 本発明に係るヘッダー管の一例を示す断面図Sectional drawing which shows an example of the header pipe | tube which concerns on this invention 逆止弁強制移動機能により、逆止弁を移動させる様子を示す概略図。Schematic which shows a mode that a check valve is moved by the check valve forced movement function. 一般的なポンプ施設の外観を示す概略図。Schematic which shows the external appearance of a general pump facility.

次に具体的な図に基づいて、本発明の実施の形態について説明する。     Next, embodiments of the present invention will be described with reference to specific drawings.

図1は、本発明に係るポンプ施設の一例の外観を示す概略図である。図1において、10はマンホール、11はヘッダー管、12は流入管、13a、13bは立ち上がり管、14a、14bはポンプ、15a、15bは水吸入口、16は圧送管である。図1に示したポンプ施設には、図3に示したポンプに、別部品として設置されている、空気抜き弁44a、44b、逆止弁45a、45b、止水弁46a、46bがなく、後述するように、ヘッダー管11にその機能が集約されている。   FIG. 1 is a schematic view showing an external appearance of an example of a pump facility according to the present invention. In FIG. 1, 10 is a manhole, 11 is a header pipe, 12 is an inflow pipe, 13a and 13b are rising pipes, 14a and 14b are pumps, 15a and 15b are water inlets, and 16 is a pressure feed pipe. The pump facility shown in FIG. 1 does not have air vent valves 44a and 44b, check valves 45a and 45b, and water stop valves 46a and 46b, which are installed as separate parts in the pump shown in FIG. As described above, the functions are integrated in the header pipe 11.

図2は、本発明に係るヘッダー管の一例を示す断面図である。この図は、表記の便宜にために、図の左側がヘッダー管を設置する際の上方向になるように記載してある。図2に示したように、本発明に係るヘッダー管20には、円筒形状の逆止弁22a、22b、止水弁27a、27bが備えられていて、おもな構成要素は、チーズ管21a、21b、21c、キャップ24a、24bで、各部材の接合部や閉塞には、一般的なフランジを、パッキンを介してボルトで接合して用いることも可能であるが、ここでは特に図示していない。   FIG. 2 is a cross-sectional view showing an example of a header pipe according to the present invention. For convenience of description, this figure is shown so that the left side of the figure is upward when the header pipe is installed. As shown in FIG. 2, the header pipe 20 according to the present invention is provided with cylindrical check valves 22a and 22b and water stop valves 27a and 27b, and the main components are the cheese pipe 21a. 21b, 21c and caps 24a, 24b, it is possible to use general flanges joined by bolts via packings for joining and closing of the respective members, but this is particularly illustrated here. Absent.

ここに示したヘッダー管は、流入口34a、34b、流出口35を備え、流入口34a、34bのそれぞれの下流側の部分にリング状の弁座23a、23bを設け、多機能ヘッダー機能の流入口34a、34bの流出口35の側には逆止弁22a、22bを退避させる退避路32a、32bを形成している。弁座23a、23bは円環形状で、その内径は逆止弁22a、22bの外径よりも小さくしてあるので、流入口34a、34bからポンプ側へ外れてしまうことはない。   The header pipe shown here includes inflow ports 34a and 34b and an outflow port 35, and ring-shaped valve seats 23a and 23b are provided in the downstream portions of the inflow ports 34a and 34b, respectively. Retreat paths 32a and 32b for retreating the check valves 22a and 22b are formed on the outlets 35 side of the inlets 34a and 34b. The valve seats 23a and 23b have an annular shape, and their inner diameters are smaller than the outer diameters of the check valves 22a and 22b. Therefore, the valve seats 23a and 23b do not come off from the inflow ports 34a and 34b to the pump side.

つまり、ポンプの静止状態では、弁座23a、23bに、自重で着座している逆止弁22a、22bが、ポンプ始動による吐出圧により垂直に押上げられ、つまり図における左側に移動して、退避路32a、32bの空間に収納され、水を排出口35側へ送るようになっている。   That is, in the stationary state of the pump, the check valves 22a and 22b seated on the valve seats 23a and 23b by their own weight are pushed up vertically by the discharge pressure due to the pump start, that is, move to the left side in the figure, It is accommodated in the space of the retreat paths 32a and 32b, and water is sent to the discharge port 35 side.

また、ポンプ停止時には、伸縮可能なコイルバネ30a、30bによる戻り力と逆流水圧により、逆止弁22a、22bを押下げ、つまり図における右側に移動させ、瞬時に元の状態に戻り一連の動作が終了することにより、急閉式のウォーターハンマー(水撃)防止効果を発現する。   Further, when the pump is stopped, the check valves 22a and 22b are pushed down by the return force and backflow water pressure by the retractable coil springs 30a and 30b, that is, moved to the right side in the figure, and return to the original state instantly and a series of operations are performed. By ending, it exhibits the effect of preventing a quick water hammer (water hammer).

また、ここに示した止水弁27a、27bは、キャップ24a、24bに設けられた雌ネジ部25a、25bに螺合する雄ネジ26a,26bを有し、ヘッダー管内への異物の侵入などの不測の事態が生じた際に、雄ネジを回転させることで、逆止弁22a、22bを流入口34a、34bの方へ移動させ、流入口34a、34bを閉塞することができる。   Further, the water stop valves 27a and 27b shown here have male screws 26a and 26b that are screwed into the female screw portions 25a and 25b provided on the caps 24a and 24b. When an unexpected situation occurs, by rotating the male screw, the check valves 22a and 22b can be moved toward the inflow ports 34a and 34b, and the inflow ports 34a and 34b can be closed.

さらに、本発明のヘッダー管20には、逆止弁強制移動機能30a、30bが設けられている。その構造は、キャップ24a、24bの雌ネジ25a、25bの近傍に設けられた第二の雌ネジ28a、28bに螺合する雄ネジ29a、29bを有し、管内への異物の侵入などの不測の事態が生じた際に、雄ネジ29a、29bを回転させることで、雄ネジ28a、28と逆止弁22a、22bに緊結されているケーブル31a、31bにより、逆止弁22a、22bを退避路に移動させ、トラブル対応及び下流側管路の水抜き(落水)をすることができる。これによって、異物混入の他、何らかのメインテナンスが必要になった場合の作業が容易になる。   Further, the header pipe 20 of the present invention is provided with check valve forced movement functions 30a and 30b. The structure has male screws 29a and 29b that are screwed into the second female screws 28a and 28b provided in the vicinity of the female screws 25a and 25b of the caps 24a and 24b. When the above situation occurs, the check screws 22a and 22b are retracted by rotating the male screws 29a and 29b by the cables 31a and 31b tightly connected to the male screws 28a and 28 and the check valves 22a and 22b. It can be moved to the road, and trouble can be solved and water can be drained from the downstream pipe. This facilitates work in the case where some maintenance is required in addition to foreign matter contamination.

図3は、逆止弁強制移動機能により、逆止弁22a、22bを移動させる様子を示す概略図である。なお、ここでは、ウォーターハンマー防止のためにコイルバネを用いているが、同じ機能を有するものであれば、例えば竹の子バネを用いることが可能であることは勿論である。   FIG. 3 is a schematic diagram showing how the check valves 22a and 22b are moved by the check valve forced movement function. Here, a coil spring is used to prevent water hammer, but it is needless to say that a bamboo spring can be used as long as it has the same function.

以上に説明したように本発明によれば、従来よりも部品数が少なく、据え付け工事に要する工数も削減可能なポンプ施設を提供することができる。なお、本発明は、前記実施の形態に限定されるものではなく、例えば別形状の逆止弁、止水弁、弁体移動、弁体底部にウォーターハンマー防止機能を用いるような、本発明の分野における通常の知識を有する者であれば想到し得る、各種変形、修正を含む、本発明の要旨を逸脱しない範囲の設計変更があっても、本発明に含まれることは勿論である。   As described above, according to the present invention, it is possible to provide a pump facility that has fewer parts than the prior art and can reduce the number of man-hours required for installation work. In addition, this invention is not limited to the said embodiment, For example, a check valve of another shape, a water stop valve, a valve body movement, and a water hammer prevention function are used for the bottom of a valve body. It goes without saying that design changes within a range that does not depart from the gist of the present invention, including various modifications and corrections that can be conceived by persons having ordinary knowledge in the field, are included in the present invention.

10,40 ・・・ マンホール
11,20,41 ・・・ ヘッダー管
12,42 ・・・ 流入管
13a,13b,43a,43b
・・・ 立ち上がり管
14a,14b,47a,47b
・・・ ポンプ
15a,15b,48a,48b
・・・ 水吸入口
16,49・・・ 圧送管
21a,21b,21c
・・・ チーズ管
22a,22b,45a,45b・・・
逆止弁
23a,23b ・・・ 弁座
24a,24b ・・・ キャップ
25a,25b ・・・ 雌ネジ
26a,26b,29a,29b
・・・ 雄ネジ
27a,27b ・・・止水弁
28a,28b ・・・ 第二の雌ネジ
30a,30b ・・・逆止弁強制移動機能
31a,31b ・・・ ケーブル
32a,32b ・・・退避路
33a,33b,44a,44b
・・・ 空気抜き弁
34a,34b ・・・ 流入口
35 ・・・ 流出口
10, 40 ... Manholes 11, 20, 41 ... Header pipes 12, 42 ... Inflow pipes 13a, 13b, 43a, 43b
... Rising tubes 14a, 14b, 47a, 47b
... Pumps 15a, 15b, 48a, 48b
... Water inlet 16, 49 ... Pressure feed pipes 21a, 21b, 21c
... Cheese tubes 22a, 22b, 45a, 45b ...
Check valves 23a, 23b ... Valve seats 24a, 24b ... Caps 25a, 25b ... Female threads 26a, 26b, 29a, 29b
... Male screws 27a, 27b ... Water stop valves 28a, 28b ... Second female screws 30a, 30b ... Check valve forced movement function 31a, 31b ... Cables 32a, 32b ... Retreat paths 33a, 33b, 44a, 44b
... Air vent valves 34a, 34b ... Inlet 35 ... Outlet

Claims (3)

流入口を有する少なくとも一つの流入路と、前記流入路に連通する流出口を有する少なくとも一つの流出路と、前記流入路の部分に設けられてなる逆止弁と、前記流入口を閉塞する機能を有する止水弁とを有するヘッダー管または吐出管において、前記逆止弁は、前記流入口を閉塞する形状を有し、前記流入口に設けられた弁座と、前記流入口の下流側に設けられてなる退避路との間を移動するように配置されてなり、前記止水弁は、前記流入口に対向する部分に設けられた雌ネジに螺合されてなる雄ネジを有する部材に取り付けられ、前記雄ネジの回転により、前記逆止弁を前記流入口の方向に移動させて流入口を閉塞する機能を有し、前記雌ネジが設けられた部分と前記逆止弁の間に配置されてなる圧縮バネを有するウォーターハンマー防止機能が設けられてなることを特徴とする、ヘッダー管または吐出管。   At least one inflow passage having an inflow opening, at least one outflow passage having an outflow opening communicating with the inflow passage, a check valve provided in a portion of the inflow passage, and a function of closing the inflow passage In the header pipe or discharge pipe having a water stop valve, the check valve has a shape that closes the inflow port, and a valve seat provided in the inflow port, and a downstream side of the inflow port. The water stop valve is disposed on a member having a male screw that is screwed into a female screw provided in a portion facing the inflow port. It has a function of closing the inlet by moving the check valve in the direction of the inlet by rotation of the male screw, and between the part provided with the female screw and the check valve Water hammer having a compression spring arranged Wherein the stop feature is provided, the header pipe or discharge pipe. 前記逆止弁は、前記雌ネジの近傍に設けられた第二の雌ネジに螺合された、第二の雄ネジに接合されたケーブルに緊結され、前記第二の雄ネジの回転により、前記ケーブルを介して退避路に移動されることによって、前記ヘッダー管または吐出管の内部の水抜きを可能とする、逆止弁強制移動機能を有することを特徴とする、請求項1または請求項2に記載のヘッダー管または吐出管。   The check valve is fastened to a cable joined to a second male screw, which is screwed to a second female screw provided in the vicinity of the female screw, and by rotation of the second male screw, The check valve forcible movement function that enables drainage of the inside of the header pipe or the discharge pipe by being moved to the retreat path via the cable is provided. 2. Header pipe or discharge pipe according to 2. 請求項1または請求項2のいずれかに記載のヘッダー管または吐出管を有することを特徴とするポンプ施設。
A pump facility comprising the header pipe or the discharge pipe according to claim 1.
JP2013258993A 2013-12-16 2013-12-16 Header pipe or discharge pipe and pump facility Pending JP2015113970A (en)

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JP2013258993A JP2015113970A (en) 2013-12-16 2013-12-16 Header pipe or discharge pipe and pump facility

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JP2015113970A true JP2015113970A (en) 2015-06-22

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JP2013258993A Pending JP2015113970A (en) 2013-12-16 2013-12-16 Header pipe or discharge pipe and pump facility

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343783A (en) * 2020-11-05 2021-02-09 常州拓川泵业科技有限公司 Metering pump with buffering and current stabilizing functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343783A (en) * 2020-11-05 2021-02-09 常州拓川泵业科技有限公司 Metering pump with buffering and current stabilizing functions

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