JPH01141393U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は熱交換器付立軸ポンプの要部を示す縦
断面図、第２図は使用状態を示す構成図、第３図
は第１図の一部を省略した―拡大断面図、第
４図は冷却ジヤケツト部を展開した断面図、第５
図は熱交換水ジヤケツト部を展開した断面図、第
６図は従来例の使用状態を示す構成図である。 １……羽根車、２……羽根車ケーシング、４…
…吸込筒、５……主軸、７……サブポンプ、４０
……周壁、４３……吸込ベルマウス、７１……吸
込ベルマウス（サブポンプ７の）、７３……主軸
（サブポンプ７の）、４１１……冷却水通路、４
２１……熱交換水用通路。 Fig. 1 is a vertical sectional view showing the main parts of a vertical shaft pump with heat exchanger, Fig. 2 is a configuration diagram showing the state of use, Fig. 3 is an enlarged sectional view with some parts of Fig. 1 omitted, and Fig. 4 The figure is an expanded cross-sectional view of the cooling jacket section.
The figure is a developed cross-sectional view of the heat exchange water jacket, and FIG. 6 is a configuration diagram showing the state of use of a conventional example. 1... Impeller, 2... Impeller casing, 4...
...Suction cylinder, 5...Main shaft, 7...Sub pump, 40
... Peripheral wall, 43 ... Suction bell mouth, 71 ... Suction bell mouth (of sub pump 7), 73 ... Main shaft (of sub pump 7), 411 ... Cooling water passage, 4
21... Heat exchange water passage.

Claims (1)

【実用新案登録請求の範囲】 (1) 羽根車ケーシングの下方に下端に吸込ベル
マウスを開口した吸込筒が連結されるとともに、
羽根車を回転させる駆動源が内燃機関である立軸
ポンプにおいて、前記吸込筒の周壁内に前記内燃
機関用の冷却水通路とこの冷却水通路を通る冷却
水と熱交換を行う熱交換水用通路とを形成し、且
つこの熱交換水用通路の入口に、前記立軸ポンプ
が気中運転しうる最高水位レベル以下の位置に吸
込ベルマウスの開口端が配されたサブポンプの吐
出口を連結してなることを特徴とする熱交換器付
立軸ポンプ。 (2) サブポンプが前記吸込筒の内側に固定され
るとともに、このサブポンプの主軸が前記立軸ポ
ンプの主軸に連結されていることを特徴とする請
求項１の熱交換器付立軸ポンプ。[Scope of Claim for Utility Model Registration] (1) A suction cylinder with a suction bell mouth opened at the lower end is connected to the lower part of the impeller casing, and
In a vertical shaft pump in which the driving source for rotating the impeller is an internal combustion engine, a cooling water passage for the internal combustion engine is provided in the peripheral wall of the suction cylinder, and a heat exchange water passage that exchanges heat with the cooling water passing through the cooling water passage. and connecting to the inlet of the heat exchange water passage a discharge port of a sub-pump in which the open end of the suction bell mouth is arranged at a position below the highest water level at which the vertical shaft pump can operate in air. A vertical shaft pump with a heat exchanger. (2) The vertical shaft pump with a heat exchanger according to claim 1, wherein a sub-pump is fixed inside the suction cylinder, and a main shaft of the sub-pump is connected to a main shaft of the vertical shaft pump.