JPH089993B2 - Pump device - Google Patents

Pump device

Info

Publication number
JPH089993B2
JPH089993B2 JP15375287A JP15375287A JPH089993B2 JP H089993 B2 JPH089993 B2 JP H089993B2 JP 15375287 A JP15375287 A JP 15375287A JP 15375287 A JP15375287 A JP 15375287A JP H089993 B2 JPH089993 B2 JP H089993B2
Authority
JP
Japan
Prior art keywords
pump
pressure
pressure side
auxiliary tank
impellers
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 - Lifetime
Application number
JP15375287A
Other languages
Japanese (ja)
Other versions
JPS64390A (en
JPH01390A (en
Inventor
正隆 田上
義幸 東脇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP15375287A priority Critical patent/JPH089993B2/en
Publication of JPS64390A publication Critical patent/JPS64390A/en
Publication of JPH01390A publication Critical patent/JPH01390A/en
Publication of JPH089993B2 publication Critical patent/JPH089993B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は、ポンプケーシングに複数のインペラを収納
し、各インペラの流路に対する接続状態を直列又は並列
に切替えるものである。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention accommodates a plurality of impellers in a pump casing and switches the connection state of each impeller to a flow path in series or in parallel.

(ロ) 従来の技術 本発明に先行する特公昭32−2887号公報に記載された
従来の技術では、ポンプケーシングに複数のインペラを
収納し、前記インペラを流路において直列又は並列に切
替える際、多数の開閉弁を操作ロッドで係合して動作さ
せるようにしているが、前記開閉弁も前記操作ロッドも
可動部材であること及び両部材間の動力伝達が確実に行
なわれない場合もあり得ること、等の理由で誤動作する
危惧がある。
(B) Conventional technology In the conventional technology described in Japanese Patent Publication No. 32-2887, which precedes the present invention, when a plurality of impellers are housed in a pump casing and the impellers are switched in series or in parallel in a flow path, A large number of on-off valves are engaged with the operating rod to operate, but there is a case in which both the on-off valve and the operating rod are movable members, and power transmission between both members may not be reliably performed. There is a risk of malfunction due to such reasons.

(ハ) 発明が解決しようとする問題点 本発明は前述の欠点を解消し、流路の切替えを確実に
且つ専用の切替部材を設けることなく簡単に行なうもの
である。
(C) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks and enables switching of the flow paths reliably and easily without providing a dedicated switching member.

(ニ) 問題点を解決するための手段 本発明は、複数のインペラのそれぞれに対応する複数
の吸込側流路及び吐出側流路をポンプケーシングと補助
タンクとに連続して形成すると共に、前記補助タンクの
接合ヘッドに前記吸込側流路及び前記吐出側流路を選択
的に連通させる選択流路を形成し、前記接合ヘッドの接
合状態を切替えることにより前記インペラの接続状態を
直列又は並列に切替えるものである。
(D) Means for Solving the Problems The present invention is to form a plurality of suction side flow passages and discharge side flow passages corresponding to each of a plurality of impellers continuously in a pump casing and an auxiliary tank. The joining head of the auxiliary tank is formed with a selection passage for selectively communicating the suction-side passage and the discharge-side passage, and the connection state of the impeller is switched in series or in parallel by switching the joining state of the joining head. It is something to switch.

(ホ) 本発明によれば、接合ヘッドの接合状態を補助タンク
に対して切替えると、前記補助タンクに形成した選択流
路は他の吸込側流路及び吐出側流路に連通するようにな
り、従って複数のインペラは流路に対して直列又は並列
に切替えられる。
(E) According to the present invention, when the joining state of the joining head is switched to the auxiliary tank, the selected flow passage formed in the auxiliary tank is connected to the other suction side flow passage and discharge side flow passage. Therefore, a plurality of impellers can be switched in series or in parallel with the flow path.

(ヘ) 実施例 次に本発明の一実施例について説明する。(F) Example Next, an example of the present invention will be described.

第1図において、(1)は井戸に挿入された吸込側管
路、(2)は吸込側管路(1)に介在した逆止弁、
(3)はポンプ、(4)はポンプ(3)の駆動源として
のモータ、(5)はモータ(4)のオンオフ用の開閉接
点(6)を有する圧力スイッチ、(7)はポンプ(3)
の吐出側管路(8)に介在したベンチュリー管で、その
大径部及び小径部にそれぞれ高圧側検出路(9)及び低
圧側検出路(10)を連通させている。(11)は両検出路
(9)(10)に連通する圧力コンデンサーで、両検出路
(9)(10)の圧力に対応してその高圧側出力路(12)
及び低圧側出力路(13)の圧力を変化させ、両出力路
(12)(13)間の差圧等に基いて圧力スイッチ(5)を
開閉する。(14)は吐出側管路(8)に介在した圧力タ
ンク、(15)は水栓である。
In FIG. 1, (1) is a suction side pipe line inserted in a well, (2) is a check valve interposed in the suction side pipe line (1),
(3) is a pump, (4) is a motor as a drive source for the pump (3), (5) is a pressure switch having an on / off contact (6) for turning the motor (4) on and off, and (7) is a pump (3 )
The venturi pipe interposed in the discharge side pipe line (8) connects the high pressure side detection line (9) and the low pressure side detection line (10) to the large diameter part and the small diameter part, respectively. Reference numeral (11) is a pressure condenser communicating with both detection paths (9) and (10), and the high pressure side output path (12) corresponding to the pressure of both detection paths (9) and (10).
The pressure of the low pressure side output passageway (13) is changed and the pressure switch (5) is opened / closed based on the differential pressure between the output passageways (12) and (13). (14) is a pressure tank interposed in the discharge side pipeline (8), and (15) is a faucet.

第2図において、(16)は圧力コンデンサー(11)に
内設された第1ダイアフラム室(17)は第2ダイアフラ
ム室である。第1ダイアフラム室(16)の高圧側(16
H)及び低圧側(16L)は両検出路(9)(10)に連通し
ている。且つ第1ダイアフラム室(16)の高圧側(16
H)及び低圧側(16L)には、それぞれ連通路(18)(1
9)を介して第2ダイアフラム室(17)の高圧側(17H)
及び低圧側(17L)が連通している。(20)は第1ダイ
アフラム(21)に取付けられた第1弁体で、高圧側出力
路(12)を開閉する。(22)は第1弁体(20)を押圧す
る第1スプリング、(23)は第2ダイアフラム(24)に
取付けられた第2弁体で、低圧側出力路(13)を開閉す
る。(25)は第2弁体(23)を押圧する第2スプリング
で、後述のように第1スプリング(22)よりも弱いばね
係数を有している。(26)は圧力スイッチ(5)に内設
した第3ダイアフラム室で、高圧側(26H)及び低圧側
(26L)をそれぞれ高圧側出力路(12)及び低圧側出力
路(13)にそれぞれ連通している。(27)は第3ダイア
フラム(28)に取付けられたロッドで、第3スプリング
(29)に抗して上動して開閉接点(6)を開成する。
In FIG. 2, (16) is a first diaphragm chamber (17) provided in the pressure condenser (11) and is a second diaphragm chamber. High pressure side of the first diaphragm chamber (16) (16
H) and the low pressure side (16L) communicate with both detection paths (9) and (10). In addition, the high pressure side of the first diaphragm chamber (16) (16
H) and low pressure side (16L), respectively, communication passage (18) (1
9) through the high pressure side (17H) of the second diaphragm chamber (17)
And the low pressure side (17L) is in communication. (20) is a first valve body attached to the first diaphragm (21), and opens and closes the high pressure side output path (12). (22) is a first spring for pressing the first valve body (20), and (23) is a second valve body attached to the second diaphragm (24) for opening and closing the low pressure side output passageway (13). (25) is a second spring for pressing the second valve body (23), and has a spring coefficient weaker than that of the first spring (22) as described later. (26) is a third diaphragm chamber installed in the pressure switch (5), and connects the high pressure side (26H) and the low pressure side (26L) to the high pressure side output path (12) and the low pressure side output path (13), respectively. are doing. Reference numeral (27) is a rod attached to the third diaphragm (28), which moves upward against the third spring (29) to open the opening / closing contact (6).

第3図、第4図及び第5図において、(30)(31)は
前記ポンプ(3)に設けたウエスコ型のインペラで、同
一回転軸(32)に装着してある。両インペラ(30)(3
1)は両者間にスペーサ(33)を介在した状態で回転軸
(32)に嵌合し、回転軸(32)に螺着した抜け止めナッ
ト(34)に順次当接してスラスト方向で位置規制されて
いる。(35)はポンプケーシングで、ケーシング部(35
a)と中間ケーシング部(35b)とケーシングカバー部
(35c)とを螺子等にて結合してなる。ケーシング部(3
5a)はメカニカルシール(36)を収容し、該メカニカル
シール(36)が圧縮スプリング(37)にて回転軸(32)
の挿通部に押圧されることで密封されている。(38)は
ポンプケーシング(35)の上部にパッキング(39)を介
して螺子止めした補助タンクで、前記吸込側管路(1)
及び前記吐出側管路(8)のそれぞれに接続する接続部
(40)(41)を有している。吸込側の接続部(40)は前
記逆止弁(2)の収納部(42)を有している。収納部
(42)は、逆止弁(2)の押圧スプリング(43)の係止
部を形成した蓋体(44)で閉塞されている。(45)は補
助タンク(38)の上部にパッキン(46)を介して螺子止
めされた接合ヘッドで、呼び水の注水口の開閉キャップ
(47)が取付けられている。
In FIGS. 3, 4, and 5, (30) and (31) are Wesco type impellers provided in the pump (3), which are mounted on the same rotary shaft (32). Both impellers (30) (3
1) is fitted to the rotating shaft (32) with the spacer (33) interposed between them, and sequentially abuts the retaining nut (34) screwed to the rotating shaft (32) to regulate the position in the thrust direction. Has been done. (35) is the pump casing, and the casing part (35
a), the intermediate casing part (35b), and the casing cover part (35c) are connected by screws or the like. Casing part (3
5a) accommodates a mechanical seal (36), and the mechanical seal (36) is a compression spring (37), and the rotary shaft (32)
It is sealed by being pressed by the insertion part of. Reference numeral (38) is an auxiliary tank screwed to the upper part of the pump casing (35) via a packing (39), and the suction side conduit (1)
And the connection parts (40) (41) that are connected to the discharge side conduit (8), respectively. The suction side connection part (40) has a storage part (42) for the check valve (2). The storage section (42) is closed by a lid body (44) having a locking portion for the pressure spring (43) of the check valve (2). Reference numeral (45) is a joint head screwed to the upper portion of the auxiliary tank (38) via a packing (46), and an opening / closing cap (47) for the priming water injection port is attached.

(48)は第1インペラ(30)に対応する第1吸込側流
路で、逆止弁(2)側から吸込んだ水を補助タンク(3
8)及びポンプケーシング(35)を通して第1インペラ
(30)に案内する。(49)は第1インペラ(30)に対応
する第1吐出側流路で、第1インペラ(30)にて押し出
された水をポンプケーシング(35)を経て補助タンク
(38)の第1吐出室(49a)に案内する。第1吐出室(4
9a)における補助タンク(38)の上端開口(49b)は大
きく方形に形成されている。(50)は第2インペラ(3
1)に対応する第2吸込側流路で、補助タンク(38)の
上部の円孔(50a)から吸込んだ水をポンプケーシング
(35)を通して第2インペラ(31)に案内する。(51)
は第2インペラ(31)に対応する第2吐出側流路で、第
2インペラ(31)で押し出された水をポンプケーシング
(35)を通して補助タンク(38)の上部の円孔(51a)
に案内する。
(48) is a first suction side flow path corresponding to the first impeller (30), and water sucked from the check valve (2) side is supplied to the auxiliary tank (3).
Guide to the first impeller (30) through 8) and the pump casing (35). (49) is a first discharge side flow path corresponding to the first impeller (30), and water discharged by the first impeller (30) is discharged through the pump casing (35) to the first discharge of the auxiliary tank (38). Take you to room (49a). First discharge chamber (4
The upper end opening (49b) of the auxiliary tank (38) in 9a) is formed in a large square shape. (50) is the second impeller (3
The water sucked from the circular hole (50a) in the upper part of the auxiliary tank (38) is guided to the second impeller (31) through the pump casing (35) in the second suction side flow path corresponding to 1). (51)
Is a second discharge side flow passage corresponding to the second impeller (31), and water extruded by the second impeller (31) is passed through the pump casing (35) through the circular hole (51a) in the upper portion of the auxiliary tank (38).
I will guide you to.

第6図において、(52)(53)は前記接合ヘッド(4
5)の下面に形成した選択流路で、前記第1、第2吸込
側流路(48)(50)及び前記第1、第2吐出側流路(4
9)(51)を選択的に連通させる。接合ヘッド(45)で
は、該接合ヘッドを補助タンク(38)の上部に第7図に
示すような回動角位置で接合すると、一方の選択流路
(52)が第1、第2吸込側流路(48)(50)どうしを連
通し、他方の選択流路(53)が第1、第2吐出側流路
(49)(51)どうしを連通し、従って第1、第2インペ
ラ(30)(31)は流路に対して互いに並列に接合される
ようになる。また接合ヘッド(45)では、該接合ヘッド
を補助タンク(38)の上部に第8図に示すように180゜
回動した位置で接合すると、一方の選択流路(52)は一
端部で第1吐出側流路(49)の大形の方形開口(49b)
に合致するが他端部で第2吐出側流路(51)の円孔(51
a)から外れ上壁で閉塞されるようになり、他方の選択
流路(53)だけが第1吐出側流路(49)と第2吸込側流
路(50)とを連通させるようになり、よってポンプ内の
水は第1吸込側流路(48)→第1インペラ(30)→第1
吐出側流路(49)→第2吸込側流路(50)→第2インペ
ラ(31)→第2吐出側流路(51)を順次流通し、従って
第1、第2インペラ(30)(31)は流路に対して互いに
直列に接続されるようになる。
In FIG. 6, (52) and (53) are the bonding heads (4
5) Selective flow channels formed on the lower surface of the first and second suction side flow channels (48) (50) and the first and second discharge side flow channels (4).
9) Selectively connect (51). In the joining head (45), when the joining head is joined to the upper portion of the auxiliary tank (38) at the rotation angle position as shown in FIG. 7, one of the selection flow paths (52) is connected to the first and second suction sides. The flow passages (48) (50) communicate with each other, and the other selection flow passage (53) communicates the first and second discharge side flow passages (49) (51) with each other, so that the first and second impellers ( 30) and (31) are joined to the flow path in parallel with each other. In the joining head (45), when the joining head is joined to the upper part of the auxiliary tank (38) at a position rotated by 180 ° as shown in FIG. Large rectangular opening (49b) of 1 discharge side flow path (49)
However, at the other end, the circular hole (51
It comes off from a) and is blocked by the upper wall, and only the other selective flow channel (53) connects the first discharge side flow channel (49) and the second suction side flow channel (50). Therefore, the water in the pump is the first suction side flow path (48) → the first impeller (30) → the first
The discharge side flow path (49) → the second suction side flow path (50) → the second impeller (31) → the second discharge side flow path (51) are sequentially circulated, and thus the first and second impellers (30) ( 31) will be connected in series to the flow path.

前記ポンプ装置では、その停止時には第2図(a)に
示すように、ベンチュリー管(7)にも流れがないた
め、高圧側検出路(9)と低圧側検出路(10)は同圧と
なっており、コンデンサー(11)の第1弁体(20)は第
1スプリング(22)の押圧力だけで上動し高圧側出力路
(12)を閉塞しており、この高圧側出力路(12)は後述
のようにポンプのオン点の圧力に保持され、このオン点
の圧力よりも高いポンプオフ点の低圧側出力路(13)の
圧力によって圧力スイッチ(5)の第3ダイアフラム
(28)及びロッド(27)が押し上げられ接点(6)はオ
フしており、モータ(4)には通電されない。
In the pump device, when the pump is stopped, as shown in FIG. 2 (a), there is no flow in the venturi pipe (7), so that the high pressure side detection path (9) and the low pressure side detection path (10) have the same pressure. The first valve body (20) of the condenser (11) moves upward only by the pressing force of the first spring (22) and closes the high pressure side output path (12). 12) is maintained at the pressure at the on-point of the pump, as will be described later, and the pressure in the low-pressure side output path (13) at the pump-off point, which is higher than this on-point pressure, causes the third diaphragm (28) of the pressure switch (5). Since the rod (27) is pushed up and the contact (6) is off, the motor (4) is not energized.

前記ポンプ装置の動作開始時には、第2図(b)に示
すように、水栓(15)が開かれてベンチュリー管(7)
内の圧力が低下し、この圧力低下が低圧側検出路(10)
及び低圧側出力路(13)を介して圧力スイッチ(5)の
第3ダイアフラム(28)の低圧側(26L)に作用し、こ
の低圧側(26L)がポンプオン点以下の圧力になると、
ポンプオン点の圧力に保持状態の高圧側(26H)により
第3ダイアフラム(28)更にはロッド(27)が押し下げ
られ、接点(6)が閉成する。
At the start of operation of the pump device, as shown in FIG. 2 (b), the faucet (15) is opened and the venturi pipe (7) is opened.
The pressure inside has dropped, and this pressure drop is due to the low pressure side detection path (10).
And acting on the low pressure side (26L) of the third diaphragm (28) of the pressure switch (5) via the low pressure side output path (13), and when this low pressure side (26L) reaches a pressure below the pump on point,
The third diaphragm (28) and further the rod (27) are pushed down by the high pressure side (26H) held at the pump-on point pressure, and the contact (6) is closed.

前記ポンプ装置の大水量時には、第2図(c)に示す
ように、ベンチュリー管(7)内の大水量により高圧側
検出路(9)と低圧側検出路(10)の間に大きな差圧が
生じ、この差圧により第1弁体(20)は第1スプリング
(22)に抗して押し下げられ高圧側出力路(12)を開成
し、この高圧側出力路(12)はポンプに連通しそのとき
のポンプオン点以下の低圧となるが、低圧側出力路(1
3)もポンプオン点以下に充分に圧力低下してから第2
弁体(23)で閉塞保持されているため圧力スイッチ
(5)のロッド(27)は継続して下方に偏位し接点
(6)は閉成している。
When the pump device has a large amount of water, as shown in FIG. 2 (c), due to the large amount of water in the Venturi tube (7), a large differential pressure is detected between the high pressure side detection path (9) and the low pressure side detection path (10). The differential pressure causes the first valve body (20) to be pushed down against the first spring (22) to open the high pressure side output path (12), and the high pressure side output path (12) communicates with the pump. However, the pressure becomes lower than the pump on-point at that time.
Also in 3), after the pressure drops sufficiently below the pump on point, the second
Since the valve body (23) is held closed, the rod (27) of the pressure switch (5) is continuously displaced downward and the contact (6) is closed.

前記ポンプ装置では、ポンプの流量を大流量から絞っ
てポンプオン点の流量にすると、第2図(d)に示すよ
うに、高圧側検出路(9)と低圧側検出路(10)の差圧
が低下し、この差圧より第1スプリング(22)の押圧力
が大となり、第1弁体(20)は高圧側出力路(12)を閉
塞してポンプオン点の圧力に保持するようになる。この
ポンプオン点の流量時には第2スプリング(25)の押し
下げ方向に作用する差圧も減少するが、この第2スプリ
ング(25)は第1スプリング(22)よりばね係数が小さ
いため第1スプリング(22)のように差圧に対抗できず
第2弁体(25)とともに下方へ押し込まれた状態を継続
し、よって低圧側出力路(13)は継続して閉成してポン
プオン点以下の低圧に保持されている。
In the pump device, when the flow rate of the pump is reduced from the large flow rate to the flow rate at the pump ON point, the differential pressure between the high pressure side detection path (9) and the low pressure side detection path (10) as shown in FIG. 2 (d). The pressure of the first spring (22) becomes larger than this pressure difference, and the first valve body (20) closes the high pressure side output passage (12) and keeps the pressure at the pump on point. . At the time of the flow rate at the pump-on point, the differential pressure acting in the pushing-down direction of the second spring (25) also decreases, but since the second spring (25) has a smaller spring coefficient than the first spring (22), the first spring (22 ), The differential pressure cannot be counteracted, and the state in which it is pushed downward together with the second valve body (25) is continued. Therefore, the low pressure side output passageway (13) is continuously closed to a low pressure below the pump ON point. Is held.

前記ポンプ装置では、流量をポンプオン点の流量から
更に絞ると、第2図(a)に示すように更に低下した差
圧に抗して第2スプリング(25)も対抗できるようにな
り、よって第2弁体(23)は低圧側出力路(13)を開成
してポンプに連通させるようになり、この連通状態で水
栓(15)が更に絞られて流量がなくなると、そのときの
ポンプ内の高圧が圧力スイッチ(5)の低圧側(26L)
に作用し、この低圧側(26L)の圧力が高圧側(26H)の
保持状態のポンプオン圧力より逆転して大となり、従っ
てロッド(27)が押し上げられて接点(6)がオフして
モータ(4)は停止する。
In the pump device, when the flow rate is further reduced from the flow rate at the pump-on point, the second spring (25) can also be opposed to the further reduced differential pressure as shown in FIG. 2 (a). The two-valve body (23) opens the low-pressure side output passageway (13) to communicate with the pump. In this communication state, if the water faucet (15) is further throttled and the flow rate disappears, the inside of the pump at that time is lost. High pressure is low pressure side of pressure switch (5) (26L)
The pressure on the low pressure side (26L) reverses and becomes larger than the pump-on pressure of the high pressure side (26H) in the held state, so that the rod (27) is pushed up and the contact (6) is turned off, and the motor ( 4) stops.

また前記ポンプ装置では、接合ヘッド(45)の接合状
態を補助タンク(38)に対して切替えることにより、イ
ンペラ(30)(31)の接続状態は流路に対して直列又は
並列に切替えられ、ポンプ特性は第9図に示すように、
インペラの1枚の特性線(H1−Q1)に比較して、直列接
続運転の場合は特性線(H2−Q1)のように全揚程がアッ
プし、並列接続運転の場合は特性線(H1−Q2)のように
流量がアップする。
Further, in the pump device, by switching the joining state of the joining head (45) to the auxiliary tank (38), the connection state of the impellers (30) (31) is switched in series or in parallel with the flow path, The pump characteristics are as shown in FIG.
Compared to the characteristic line of one impeller (H 1 −Q 1 ), the total head is increased as shown by the characteristic line (H 2 −Q 1 ) in the case of series connection operation, and the characteristic is increased in the case of parallel connection operation. flow rate up to a line (H 1 -Q 2).

(ト) 発明の効果 本発明は以上のように構成されたから、接合ヘッドの
接合状態を補助タンクに対して切替えるだけで、流路に
対する複数のインペラの接続状態を変更して、インペラ
の直列運転と並列運転を1台のポンプ装置だけで簡単に
切替え得るようになり、従って種々の要求に対して揚
程、流量特性の制御範囲を大きく調整可能なポンプ装置
を提供できる。また、直列運転と並列運転との切替えを
従来例のように複雑な専用機構を要することなく、装置
に予じめ備わった接合ヘッドを利用するだけで簡単且つ
確実に行ない得る。
(G) Effect of the Invention Since the present invention is configured as described above, by simply switching the joining state of the joining head to the auxiliary tank, the connection state of the plurality of impellers with respect to the flow path is changed, and the series operation of the impellers is performed. Therefore, the parallel operation can be easily switched by only one pump device, and therefore, it is possible to provide a pump device in which the control range of the pump head and the flow rate characteristic can be greatly adjusted to various requirements. Further, the switching between the series operation and the parallel operation can be easily and surely performed without using a complicated dedicated mechanism unlike the conventional example, only by using the joining head provided in advance in the apparatus.

【図面の簡単な説明】[Brief description of drawings]

第1図乃至第9図は本発明の一実施例を示し、第1図は
全体の構成図、第2図はコンデンサーと圧力スイッチの
縦断面図、第3図は縦断正面図、第4図はポンプの縦断
側面図、第5図(a)は第5図(b)におけるA−B−
C−D−E−F線断面図、第5図(b)は補助タンクの
上面図、第6図(a)は接合ヘッドの上面図、第6図
(b)は同接合ヘッドの側面図、第6図(c)は第6図
(a)におけるA−B−C−D線断面図、第6図(d)
は同接合ヘッドの下面図、第7図(a)は並列運転時の
接合ヘッドの上面方向からみた説明図、第7図(b)は
同、側面方向からみた説明図、第8図(a)は直列運転
時の接合ヘッドの上面方向からみた説明図、第8図
(b)は、同、側面方向からみた説明図、第9図は全揚
程と流量に関する特性図である。 (30)(31)……インペラ、(32)……回転軸、(35)
……ポンプケーシング、(38)……補助タンク、(45)
……接合ヘッド、(48)(50)……吸込側流路、(49)
(51)……吐出側流路、(52)(53)……選択流路。
1 to 9 show an embodiment of the present invention, FIG. 1 is an overall configuration diagram, FIG. 2 is a vertical sectional view of a condenser and a pressure switch, FIG. 3 is a vertical sectional front view, and FIG. Is a vertical side view of the pump, and FIG. 5 (a) is AB- in FIG. 5 (b).
C-D-E-F line sectional view, FIG. 5 (b) is a top view of the auxiliary tank, FIG. 6 (a) is a top view of the bonding head, and FIG. 6 (b) is a side view of the bonding head. 6 (c) is a sectional view taken along the line ABCD in FIG. 6 (a), and FIG. 6 (d).
Is a bottom view of the joining head, FIG. 7 (a) is an explanatory view seen from the upper surface direction of the joining head during parallel operation, FIG. 7 (b) is an explanatory view seen from the side direction of the same, and FIG. 8 (a). ) Is an explanatory view seen from the upper surface direction of the joining head during serial operation, FIG. 8 (b) is an explanatory view seen from the side surface of the same, and FIG. 9 is a characteristic diagram relating to the total head and the flow rate. (30) (31) …… impeller, (32) …… rotating shaft, (35)
...... Pump casing, (38) …… Auxiliary tank, (45)
…… Joining head, (48) (50) …… Suction side flow path, (49)
(51) …… Discharge side flow path, (52) (53) …… Selection flow path.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】同一回転軸に複数のインペラを装着し、各
インペラのそれぞれに対応する複数の吸込側流路及び吐
出側流路ををポンプケーシングと補助タンクとに連続し
て形成するとともに、前記補助タンクの接合ヘッドに前
記吸込側流路及び前記吐出側流路を選択的に連通させる
選択流路を形成し、前記接合ヘッドの接合状態を切替え
ることにより前記インペラの接続状態を直列又は並列に
切替えることを特徴とするポンプ装置。
1. A plurality of impellers are mounted on the same rotary shaft, and a plurality of suction-side flow passages and discharge-side flow passages corresponding to the respective impellers are continuously formed in a pump casing and an auxiliary tank, and The joining head of the auxiliary tank is formed with a selection passage for selectively communicating the suction-side passage and the discharge-side passage, and the connection state of the impeller is switched in series or in parallel by switching the joining state of the joining head. Pump device characterized by switching to.
JP15375287A 1987-06-19 1987-06-19 Pump device Expired - Lifetime JPH089993B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15375287A JPH089993B2 (en) 1987-06-19 1987-06-19 Pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15375287A JPH089993B2 (en) 1987-06-19 1987-06-19 Pump device

Publications (3)

Publication Number Publication Date
JPS64390A JPS64390A (en) 1989-01-05
JPH01390A JPH01390A (en) 1989-01-05
JPH089993B2 true JPH089993B2 (en) 1996-01-31

Family

ID=15569343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15375287A Expired - Lifetime JPH089993B2 (en) 1987-06-19 1987-06-19 Pump device

Country Status (1)

Country Link
JP (1) JPH089993B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951038A (en) * 1987-05-15 1990-08-21 Hudson Soft Co., Ltd. Apparatus for displaying a sprite on a screen

Also Published As

Publication number Publication date
JPS64390A (en) 1989-01-05

Similar Documents

Publication Publication Date Title
US6764287B2 (en) Pump provided with diaphragms
CA2683201A1 (en) Disposable infusion cassette with low air bubble retention and improved valves
JPH0467039B2 (en)
JPS63243575A (en) Microelectronic valve
US6082703A (en) Hydraulic valve controlled by a photoelectric cell and operated by an electric motor
JPH05118449A (en) Cock
US5758862A (en) Solenoid pump operated valve
JP6858145B2 (en) Electric valve
JPH05504922A (en) Electrical Windscreen - Double Diaphragm Leakproof Seal Device for Washer Pumps
EP0814289A3 (en) Switching valve, fluid compressor and heat pump type refrigeration system
JPH089993B2 (en) Pump device
US5302088A (en) Water powered sump pump
US4233003A (en) Rotary pump
US5791143A (en) Flow control valve and hydraulic system employing same
JP2000320711A (en) Electric control valve
JPH06200889A (en) Improvement of vacuum pump
KR100616636B1 (en) Flow path switching valve for oxygen generator
US20090120508A1 (en) Air Release Valve
JPH01390A (en) pump equipment
US5947690A (en) Actuator valve for pressure switch for a fluidic system
CN114087398A (en) Double-diaphragm electromagnetic valve
US4827831A (en) Reciprocating device and switching mechanism therefor
US20040074383A1 (en) Pilot control valve utilizing multiple offset slide valves
JP2912867B2 (en) Mechanical valve of spool valve type
CN211573741U (en) Active power assembly and driving device with same