JPS61149590A - Pumping device - Google Patents
Pumping deviceInfo
- Publication number
- JPS61149590A JPS61149590A JP26983784A JP26983784A JPS61149590A JP S61149590 A JPS61149590 A JP S61149590A JP 26983784 A JP26983784 A JP 26983784A JP 26983784 A JP26983784 A JP 26983784A JP S61149590 A JPS61149590 A JP S61149590A
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- bypass circuit
- discharge pipe
- pump
- flow
- 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.)
- Pending
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
ピ） 産業上の利用分野
本発明は、流量が所定値以下になったことを流量検出ス
イッチで検出してポンプを停止させてなるポンプ装置に
関する。DETAILED DESCRIPTION OF THE INVENTION B) Industrial Field of Application The present invention relates to a pump device that stops a pump when a flow rate detection switch detects that the flow rate has become less than a predetermined value.
幹）従来の技術
本発明に先行する特公昭５９−３２６７３号公報に記載
された従来の技術では、ポンプの吐出管に直接、流量検
出スイッチを設けているため、前記吐出管の流量に対応
して流量検出スイッチも大容量にする必要があ夛、従っ
て大容量スイッチの分だけ装置がコストアップとなる欠
点があった。Main) Conventional technology In the conventional technology described in Japanese Patent Publication No. 59-32673, which precedes the present invention, a flow rate detection switch is provided directly on the discharge pipe of the pump, so that the flow rate of the discharge pipe can be adjusted. Therefore, it is necessary to increase the capacity of the flow rate detection switch, which has the disadvantage that the cost of the device increases due to the large capacity switch.
（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、流量検出スイッチを小容
量化して、ポンプ装置のコストを低減するものである。(c) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks, reduces the capacity of the flow rate detection switch, and reduces the cost of the pump device.
に）問題点を解決する念めの手段
本発明は、ボン１の吐出管に圧力損失の大きいバイパス
回路を設けると共に、このバイパス回路に小容量の流量
検出スイッチを設けたものである。B) Precautionary Measures to Solve the Problems In the present invention, a bypass circuit with a large pressure loss is provided in the discharge pipe of the bong 1, and a small-capacity flow rate detection switch is provided in this bypass circuit.
（ホ）作 ”用
本発明によれば、ポンプの吐出水は大部分、ボンデ吐出
管を流れ、圧力損失の大きいバイパス管には小量しか流
れず、従ってこのバイパス管の流量は小容量の流量検出
スイッチで検出される。(E) According to the present invention, most of the water discharged from the pump flows through the bonde discharge pipe, and only a small amount flows into the bypass pipe, which has a large pressure loss. Detected by flow rate detection switch.
（へ）実施例 次に本発明の一実施例について説明する。(f) Example Next, one embodiment of the present invention will be described.
第１図に於て、（１）は電動ポンプで、水源（２）に至
る吸込管（３）とパルプ（４）に至る吐出管（５）を有
している。In FIG. 1, (1) is an electric pump, which has a suction pipe (3) leading to a water source (2) and a discharge pipe (5) leading to pulp (4).
（６）は圧力スイッチで、吐出管（５）に設けられた蓄
圧セル（７）に連通している。（８）は吐出管（５）に
設けられたバイパス回路で、後述する様に配管圧力損失
の大きいものである。（９）はバイパス回路（８）に設
けられた小容量の流量検出スイッチで、具体的には２１
／−程度の流量で作動する。頭は抵抗弁で、吐出管（５
）におけるバイパス点（社）０間の部分（５ａ）に形成
されている。この抵抗弁［株］を調節することによシ、
吐出管部分（５ａ）とバイパス回路（８）との圧力損失
比を％ １：４程度に設定しである。(6) is a pressure switch, which communicates with a pressure storage cell (7) provided in the discharge pipe (5). (8) is a bypass circuit provided in the discharge pipe (5), which has a large piping pressure loss as described later. (9) is a small capacity flow detection switch provided in the bypass circuit (8), specifically 21
It operates at a flow rate of /-. The head is a resistance valve, and the discharge pipe (5
) is formed in the portion (5a) between the bypass point (5a). By adjusting this resistance valve,
The pressure loss ratio between the discharge pipe portion (5a) and the bypass circuit (8) is set to about 1:4%.
第２図に於て、Ｑ３ｔ；を電源、Ｃ１４１は前記電動ポ
ンプ（１）をオン、オフさせる常閉リレー接点、（至）
は常閉リレー接点α４のリレーコイルで、前記圧力スイ
ッチ（６）と前記流量検出スイッチ（９）に、夫々、直
列に接続されている。In Fig. 2, Q3t; is a power source, and C141 is a normally closed relay contact that turns on and off the electric pump (1).
is a relay coil of normally closed relay contact α4, which is connected in series to the pressure switch (6) and the flow rate detection switch (9), respectively.
次に前記ポンプ装置の動作を、第３図に於て、縦軸に揚
程（ｎ）、横軸に流量（Ｑ）を夫々とって説明する。Next, the operation of the pump device will be explained with reference to FIG. 3, with the vertical axis representing the lift (n) and the horizontal axis representing the flow rate (Q).
パルプ（４）の全開状態に於ては、揚程Ｐｔで運転して
いる。この状態では流量スイッチ（９）及び圧力スイッ
チ（６）は共にオンしている。When the pulp (4) is fully opened, the pump is operated at the lift Pt. In this state, both the flow rate switch (9) and the pressure switch (6) are on.
この状態からパルプ（４）を閉じていくと揚程は除々に
上昇していく。揚程１２点に達すると圧力スイッチ（６
）はオフするが流量スイッチ（９）は継続してオンして
いるためボンデ（１）は運転を継続する。更にパルプ（
４）を閉じていくと、揚程は上昇し、流量は減少して９
１点に達すると流量スイッチ（９）もオフしてボン１（
１）が停止する。As the pulp (4) is closed from this state, the lifting height gradually increases. When the lift reaches 12 points, the pressure switch (6
) is turned off, but the flow rate switch (9) continues to be on, so the bonder (1) continues to operate. Furthermore, pulp (
4), the head increases and the flow rate decreases to 9.
When the 1st point is reached, the flow rate switch (9) is also turned off and the cylinder 1 (
1) stops.
この停止状態からパルプ（４）を開くと、揚程は低下し
てＰ１点に達すると圧力スイッチ（６）がオンし、ポン
プ（１）は運転を再開する。When the pulp (4) is opened from this stopped state, the pump head decreases and when it reaches point P1, the pressure switch (6) is turned on and the pump (1) resumes operation.
前述の動作に於て、ボンデ停止水量Ｑｓは、ボンデ（１
）の容量にもよるが一般的には定格運転点流量の約１／
１０程度が望ましく、よって定格運転点流量が１００Ｊ
／ｍの多用されるポンプ装置の場合、その１７１０程度
の１０１／−か望ましい。In the above-mentioned operation, the bonde stop water amount Qs is equal to the bonde (1
), but generally it is about 1/1/1 of the rated operating point flow rate.
10 is desirable, so the rated operating point flow rate is 100J.
In the case of a frequently used pump device of 1/m, a value of 101/-, which is about 1710, is desirable.
しかしながら、１０１／ｍで動作する流量スイッチは容
量が大なる故に非常に高価である。そこで、この大賽量
スイッチに代えて、動作流量が１゜５〜３Ｊ／ａｍ程度
の安価な小屋の前記小容量スイッチ（９）を使用してい
る。However, flow switches operating at 101/m are very expensive due to their large capacity. Therefore, instead of this large-capacity switch, the small-capacity switch (9), which is inexpensive and has an operating flow rate of about 1.5 to 3 J/am, is used.
この流量検出スイッチ（９）を使用すべく、本実施例で
は、前記吐出管部分（５ａ）に対する圧力損失比が１：
４程度のバイパス回路（８）を設け、このバイパス回路
（８）の流量（１０Ｘ１１５→２１／■）を前記小容量
スイッチ（９）の動作流量（１，５〜３１／−）と略等
しくしている。In order to use this flow rate detection switch (9), in this embodiment, the pressure loss ratio with respect to the discharge pipe portion (5a) is 1:
A bypass circuit (8) of about 4 is provided, and the flow rate (10X115→21/■) of this bypass circuit (8) is made approximately equal to the operating flow rate (1,5 to 31/-) of the small capacity switch (9). ing.
（ト）発明の効果
本発明は以上の様に構成したから、ポンプの吐出水は圧
力損失の大きいバイパス回路側には少量しか流れず、従
ってこのバイパス回路の流量検出スイッチを小容量化し
て、ポンプ装置のコストを低減できる。また、ポンプの
吐出水の大部分は比較的圧力損失の小さい吐出管側を流
量検出スイッチに妨けられることなく円滑に流れるため
、ボンデ本来の特性を十分に発揮させることができる。(G) Effects of the Invention Since the present invention is configured as described above, only a small amount of water discharged from the pump flows into the bypass circuit side where the pressure loss is large. Therefore, the capacity of the flow rate detection switch of this bypass circuit is reduced. The cost of pump equipment can be reduced. Moreover, most of the water discharged from the pump flows smoothly through the discharge pipe side, where the pressure loss is relatively small, without being obstructed by the flow rate detection switch, so that the original characteristics of the bonder can be fully exhibited.
第１図乃至第３図は本発明の一実施例を示し。
第１図は構成図、第２図は概略的電気回路図、第６図は
動作説明図である。
（１）・・・・・・ポンプ、（５）・・・・・・吐出管
、（８）−−−−−−バイパス回路、（９）・・・・・
・流量検出スイッチ、（１１１Ｑ２１−−−−−−バイ
パス点。1 to 3 show one embodiment of the present invention. FIG. 1 is a configuration diagram, FIG. 2 is a schematic electrical circuit diagram, and FIG. 6 is an operation explanatory diagram. (1)...Pump, (5)...Discharge pipe, (8)---Bypass circuit, (9)...
・Flow rate detection switch, (111Q21---Bypass point.
Claims (1)
で検出してポンプを停止させてなるものに於て、前記ポ
ンプの吐出管に圧力損失の大きいバイパス回路を設ける
と共に、このバイパス回路に小容量の流量検出スイッチ
を設けたことを特徴とするポンプ装置。 ２）前記吐出管における前記バイパス回路のバイパス点
間の部分と、前記バイパス回路との、圧力損失比を１：
４程度に設定したことを特徴とする特許請求の範囲第１
項記載のポンプ装置。[Claims] 1) A pump is stopped when a flow rate detection switch detects that the flow rate is below a predetermined value, and a bypass circuit with a large pressure loss is provided in the discharge pipe of the pump. The pump device is further characterized in that the bypass circuit is provided with a small-capacity flow rate detection switch. 2) The pressure loss ratio between the portion of the discharge pipe between the bypass points of the bypass circuit and the bypass circuit is 1:
Claim 1 characterized in that the setting is about 4.
Pump device as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26983784A JPS61149590A (en) | 1984-12-20 | 1984-12-20 | Pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26983784A JPS61149590A (en) | 1984-12-20 | 1984-12-20 | Pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61149590A true JPS61149590A (en) | 1986-07-08 |
Family
ID=17477872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26983784A Pending JPS61149590A (en) | 1984-12-20 | 1984-12-20 | Pumping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61149590A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534292B2 (en) * | 1974-06-13 | 1980-09-05 | ||
| JPS5932673A (en) * | 1982-08-14 | 1984-02-22 | Mitsubishi Motors Corp | Ignition timing control device for engine |
-
1984
- 1984-12-20 JP JP26983784A patent/JPS61149590A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534292B2 (en) * | 1974-06-13 | 1980-09-05 | ||
| JPS5932673A (en) * | 1982-08-14 | 1984-02-22 | Mitsubishi Motors Corp | Ignition timing control device for engine |
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