JPH0429120Y2 - - Google Patents
Info
- Publication number
- JPH0429120Y2 JPH0429120Y2 JP1987046381U JP4638187U JPH0429120Y2 JP H0429120 Y2 JPH0429120 Y2 JP H0429120Y2 JP 1987046381 U JP1987046381 U JP 1987046381U JP 4638187 U JP4638187 U JP 4638187U JP H0429120 Y2 JPH0429120 Y2 JP H0429120Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooler
- pipe
- valve
- casing
- pump
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、排水用ポンプ機場におけるエンジ
ン、減速機および自家発電装置等に使用する冷却
水の冷却に用いられる冷却器ケーシングの排気手
段に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an exhaust means for a cooler casing used for cooling cooling water used in an engine, a speed reducer, a private power generator, etc. in a drainage pump station.
（従来の技術）
従来、この種の冷却器を備えた排水用ポンプ機
場の配管系は、第２図および第３図に示すよう
に、主ポンプ１、冷却器４、弁２、吐出管３より
構成されている。なお、第２図は主ポンプ１とし
て、立軸ポンプを、第３図は横軸ポンプを使用し
た場合である。(Prior Art) Conventionally, the piping system of a drainage pump station equipped with this type of cooler includes a main pump 1, a cooler 4, a valve 2, and a discharge pipe 3, as shown in FIGS. 2 and 3. It is composed of Note that FIG. 2 shows a case where a vertical shaft pump is used as the main pump 1, and FIG. 3 shows a case where a horizontal shaft pump is used.
そして、前記冷却器４は第４図に示すように、
ケーシング５の一部に接続部より大きい径の膨ら
みをもたせ、この部分に直線状の冷却管７を前記
吐出管３の頂部と平行に、かつ、同心円上に複数
本配置するとともに、冷却管７の両端を冷却水供
給口と冷却水排水口（いずれも図示せず）とを備
えた仕切室６に接続したものである。 As shown in FIG. 4, the cooler 4 is
A part of the casing 5 has a bulge with a larger diameter than the connecting part, and a plurality of straight cooling pipes 7 are arranged in this part parallel to the top of the discharge pipe 3 and concentrically. Both ends thereof are connected to a partition chamber 6 provided with a cooling water supply port and a cooling water discharge port (neither of which are shown).
（考案が解決しようとする問題点）
しかしながら、前記冷却器４では、その冷却管
７が吐出管３の径よりも上方に位置するものがあ
り、そのために、冷却器４のケーシング５の頂部
に空気がたまつて冷却管７の一部が空気中に露出
し、冷却能力が低下するという問題点があつた。(Problems to be Solved by the Invention) However, in some of the coolers 4, the cooling pipe 7 is located above the diameter of the discharge pipe 3, and therefore, the top of the casing 5 of the cooler 4 is There was a problem in that air accumulated and a portion of the cooling pipe 7 was exposed to the air, resulting in a decrease in cooling capacity.
ところで、第２図および第３図から明らかなよ
うに、主ポンプ１の運転中には、配管系全体はサ
イホンを形成するが、冷却器４の上部は吐出水面
よりも高い位置に設置されるため、ケーシング５
内が負圧になることが多い。このため、冷却器４
のケーシング５の頂部にたまつた空気を排気する
ためには、前記負圧よりも更に大きい負圧で吸引
してやることが必要となる。 By the way, as is clear from FIGS. 2 and 3, while the main pump 1 is operating, the entire piping system forms a siphon, but the upper part of the cooler 4 is installed at a higher position than the discharge water level. Therefore, casing 5
There is often negative pressure inside. For this reason, cooler 4
In order to exhaust the air accumulated at the top of the casing 5, it is necessary to suction the air with a negative pressure even greater than the negative pressure mentioned above.
また、第３図のように、主ポンプ１として横軸
ポンプを使用したポンプ機場では、主ポンプ１の
起動時に主ポンプ１内を満水するための真空ポン
プが設置されており、この真空ポンプによつて冷
却器４のケーシング５内の排気を行うことも可能
であるが、この場合、真空ポンプの運転頻度が高
くなり、ゴミのかみ込み等の不具合を生ずる危険
が増すという問題点もあつた。 In addition, as shown in Figure 3, in pump stations that use horizontal shaft pumps as the main pump 1, a vacuum pump is installed to fill the main pump 1 with water when the main pump 1 is started. Therefore, it is possible to exhaust the inside of the casing 5 of the cooler 4, but in this case, there is a problem that the vacuum pump has to be operated more frequently, increasing the risk of problems such as dirt being trapped. .
さらに、第２図のように、主ポンプ１として立
軸ポンプを使用したポンプ機場では、真空ポンプ
は設置されないのが普通であり、冷却器４の排気
の目的のみに真空ポンプを設置するのは不経済で
あつた。 Furthermore, as shown in Fig. 2, in pump stations that use vertical pumps as the main pump 1, vacuum pumps are not usually installed, and it is inappropriate to install a vacuum pump only for the purpose of exhausting the cooler 4. It was the economy.
（問題点を解決するための手段）
本考案は、主ポンプ１の下流側に冷却器４、弁
２、吐出管３の順序で配設した排水ポンプ機場の
配管系において、冷却器４のケーシング５の頂部
と、弁２の下流側の吐出管３の頂部を配管８で接
続したことを特徴とする冷却器ケーシングの排気
手段を提供するものである。(Means for Solving Problems) The present invention provides a piping system for a drainage pump station in which a cooler 4, a valve 2, and a discharge pipe 3 are arranged downstream of the main pump 1 in this order. 5 and the top of the discharge pipe 3 on the downstream side of the valve 2 are connected by a pipe 8.
（実施例）
つぎに、本考案を第１図に示す実施例により説
明する。(Example) Next, the present invention will be explained using an example shown in FIG.
第１図は、冷却器４のケーシング５の頂部と吐
出管３の頂部とを配管８で接続したものである。
主ポンプ１の運転中、弁２によつて生ずる圧損の
ため、冷却器４のケーシング５の頂部の圧力は、
吐出管３の頂部の圧力よりも高く保たれる。 In FIG. 1, the top of the casing 5 of the cooler 4 and the top of the discharge pipe 3 are connected by a pipe 8. In FIG.
During operation of the main pump 1, due to the pressure drop caused by the valve 2, the pressure at the top of the casing 5 of the cooler 4 is:
The pressure is kept higher than the pressure at the top of the discharge tube 3.
したがつて、弁２を絞つて主ポンプ１を運転す
る場合のように、小流量時には、弁２の前後の差
圧が大であるため、主ポンプ１の吸込口から侵入
して冷却器４のケーシング５の頂部に溜つた空気
は、急速に、かつ、確実に吐出管３に排出され
る。 Therefore, when the flow rate is small, such as when the main pump 1 is operated with the valve 2 throttled down, the differential pressure across the valve 2 is large, so it enters from the suction port of the main pump 1 and causes a drop in the cooler 4. The air accumulated at the top of the casing 5 is quickly and reliably discharged to the discharge pipe 3.
また、弁２の開放時のように大流量時には、管
路に沿つて発生する圧損により冷却器４のケーシ
ング５の頂部に溜つた空気は配管８を通つて吐出
管３に至り、確実に排気される。 In addition, when the flow rate is large, such as when the valve 2 is opened, the air accumulated at the top of the casing 5 of the cooler 4 due to the pressure loss that occurs along the pipe passes through the pipe 8 and reaches the discharge pipe 3, ensuring that it is exhausted. be done.
つまり、前記配管８は主ポンプ１の吐出側に設
けてあるため、前記排気された空気は、再び冷却
器４内に戻ることはなく、かつ、主ポンプ１に吸
込まれることがないため、ポンプ効率の低下を来
すこともない。 In other words, since the pipe 8 is provided on the discharge side of the main pump 1, the exhausted air will not return to the cooler 4 and will not be sucked into the main pump 1. There is no reduction in pump efficiency.
また、配管８の途中に分岐配管９を設けて高圧
空気又は高圧水源を接続し、分岐点をはさむよう
に弁１０ａ，１０ｂ，１０ｃを取り付けておけ
ば、配管８にゴミ等が詰まつた場合でも弁１０ａ
と弁１０ｂまたは弁１０ａと弁１０ｃを開くこと
により、簡単に取除くことが可能となる。 In addition, if a branch pipe 9 is installed in the middle of the pipe 8 to connect a high-pressure air or high-pressure water source, and valves 10a, 10b, and 10c are installed across the branch point, if the pipe 8 becomes clogged with dirt, etc. But valve 10a
It can be easily removed by opening the valve 10b or the valve 10a and the valve 10c.
（考案の効果）
本考案によれば、主ポンプの下流側に冷却器、
弁、吐出管の順序で配設した排水ポンプ機場の配
管系において、冷却器のケーシングの頂部と、弁
の下流側の吐出管の頂部を配管で接続するという
簡単な構成で、冷却器頂部の排気を、自動的かつ
連続的に確実に行うことができる。しかも、真空
ポンプ等の電気・機械設備を一切必要としないの
で、運転・設備コストはほとんど零とすることが
でき、簡単であることから信頼性も高い。また、
主ポンプに前記空気が戻入しないためポンプ性能
も何ら損われない。(Effect of the invention) According to the invention, a cooler is installed downstream of the main pump.
In a piping system at a drainage pump plant where a valve and a discharge pipe are arranged in that order, the top of the cooler casing and the top of the discharge pipe on the downstream side of the valve are connected by piping, which is a simple configuration. Evacuation can be reliably performed automatically and continuously. Moreover, since no electrical or mechanical equipment such as a vacuum pump is required, the operating and equipment costs can be reduced to almost zero, and the reliability is high due to its simplicity. Also,
Since the air does not return to the main pump, pump performance is not impaired at all.
なお、前記排気用配管にゴミ等が詰まる恐れが
ある場合には、この配管の途中にさらに弁と高圧
空気または高圧水配管を接続することにより簡単
に詰まりを解消することができる。 In addition, if there is a possibility that the exhaust piping is clogged with dust or the like, the clogging can be easily eliminated by further connecting a valve and a high-pressure air or high-pressure water piping in the middle of the piping.
第１図は本考案にかかる冷却器ケーシングの排
気手段を示す説明図、第２図および第３図は排水
ポンプ設備における配管系を示す図で、第４図は
冷却器の説明用断面図である。
１……主ポンプ、２……弁、３……吐出管、４
……冷却器、５……ケーシング、６……仕切室、
７……冷却管、８……配管、９……分岐管、１
０，１０ａ，１０ｂ，１０ｃ……弁。
Fig. 1 is an explanatory diagram showing the exhaust means for the cooler casing according to the present invention, Figs. 2 and 3 are diagrams showing the piping system in the drainage pump equipment, and Fig. 4 is an explanatory cross-sectional view of the cooler. be. 1... Main pump, 2... Valve, 3... Discharge pipe, 4
... Cooler, 5 ... Casing, 6 ... Partition room,
7... Cooling pipe, 8... Piping, 9... Branch pipe, 1
0, 10a, 10b, 10c... valve.
Claims (1)
管３の順序で配設した排水ポンプ機場の配管系
において、冷却器４のケーシング５の頂部と、
弁２の下流側の吐出管３の頂部を配管８で接続
したことを特徴とする冷却器ケーシングの排気
手段。 (2) 前記配管８の途中に、分岐配管９を設け、分
岐点をはさみ込むように３つの弁１０ａ，１０
ｂ，１０ｃを設け、分岐配管９に高圧空気又は
高圧水源を接続したことを特徴とする前記実用
新案登録請求の範囲第１項に記載の冷却器ケー
シングの排気手段。[Scope of Claim for Utility Model Registration] (1) In the piping system of a drainage pump station where a cooler 4, a valve 2, and a discharge pipe 3 are arranged in this order on the downstream side of the main pump 1, the top of the casing 5 of the cooler 4 and,
An exhaust means for a cooler casing, characterized in that the top of a discharge pipe 3 on the downstream side of a valve 2 is connected with a pipe 8. (2) A branch pipe 9 is provided in the middle of the pipe 8, and three valves 10a, 10 are installed so as to sandwich the branch point.
10c, and the branch pipe 9 is connected to a high-pressure air or high-pressure water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046381U JPH0429120Y2 (en) | 1987-03-28 | 1987-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046381U JPH0429120Y2 (en) | 1987-03-28 | 1987-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63154795U JPS63154795U (en) | 1988-10-11 |
| JPH0429120Y2 true JPH0429120Y2 (en) | 1992-07-15 |
Family
ID=30865991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987046381U Expired JPH0429120Y2 (en) | 1987-03-28 | 1987-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429120Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542272A (en) * | 1978-09-21 | 1980-03-25 | Sumitomo Metal Mining Co | Manufacture of waterproofing vaporrcuring light weight foamed concrete |
| JPS5650120A (en) * | 1979-10-02 | 1981-05-07 | Tdk Corp | Manufacture of iron oxide hydrate |
| JPS5691187A (en) * | 1979-12-26 | 1981-07-23 | Hitachi Ltd | Short discharge pipe of pump incorporated with cooler |
-
1987
- 1987-03-28 JP JP1987046381U patent/JPH0429120Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542272A (en) * | 1978-09-21 | 1980-03-25 | Sumitomo Metal Mining Co | Manufacture of waterproofing vaporrcuring light weight foamed concrete |
| JPS5650120A (en) * | 1979-10-02 | 1981-05-07 | Tdk Corp | Manufacture of iron oxide hydrate |
| JPS5691187A (en) * | 1979-12-26 | 1981-07-23 | Hitachi Ltd | Short discharge pipe of pump incorporated with cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63154795U (en) | 1988-10-11 |
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