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Novel double-suction pump with flow channel type guide blade

A channel-type, double-suction pump technology, applied to non-variable pumps, parts of pumping devices for elastic fluids, pumps, etc., can solve the problem of unstable pump operation, easy damage to mechanical seals, long shaft 25 And other issues

Inactive Publication Date: 2010-06-16
SHANGHAI LIANCHENG(GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pump body extrusion chamber of the double-suction pump adopts a semi-spiral structure, and adopts mechanical seals and rolling bearings, it has the following disadvantages: Since the pump body extrusion chamber of the double-suction pump adopts a semi-spiral structure, in the pump Large radial force is generated during operation. Since the double-suction pump adopts mechanical seal 24 and rolling bearing 22, the shaft 25 is relatively long. , the deflection of the shaft is large, the mechanical seal is easily damaged, and it is easy to cause damage to the bearing

Method used

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  • Novel double-suction pump with flow channel type guide blade
  • Novel double-suction pump with flow channel type guide blade
  • Novel double-suction pump with flow channel type guide blade

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Embodiment Construction

[0008] The figure includes: sliding bearing gland 1, sliding bearing 2, shaft 3, impeller 4, pump cover 5, pump body 7, sliding bearing body 8, auxiliary seal 9, and it is characterized in that: the pressure chamber of the pump is increased by a Runner guide vane 6. The channel-type guide vane 6 is composed of a guide vane cover plate 11, two flow channels 12, and guide vane blades 13. The guide vane blades 13 are of two helical shapes, and the two helical guide vane blades 13 are distributed in symmetrical positions 180° apart. position.

[0009] This invention patent is realized in this way: on the basis of the existing double suction pump, the bearing body 21, the rolling bearing 22, the mechanical seal gland 23, the mechanical seal 24, and the bearing gland 20 are removed, (see attached Figure 1 ) Change the rolling bearing to sliding bearing 2, and use the liquid delivered by the pump itself to lubricate the sliding bearing (see attached Figure II ). Since the shaft l...

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Abstract

The invention relates to a novel double-suction pump with a flow channel type guide blade, which comprises a slide bearing gland, a slide bearing, a shaft, an impeller, a pump cover, a pump body, a slide bearing body and an auxiliary seal element. The double-suction pump is characterized in that a flow channel type guide blade is additionally arranged in a pressing chamber of the pump. The flow channel type guide blade comprises a guide blade cover plate, two flow channels and guide blades, wherein the two guide blades are spiral and are distributed on the symmetrical positions with an angle of 180 degrees. The invention balances the radial force generated when the pump runs, reduces easily damaged parts and cost, improves the reliability of the pump, prolongs the service life of the pump and ensures that the double-suction pump has wide efficient area when meeting a large flow and lifting capacity range.

Description

technical field [0001] The invention relates to a double-suction pump, in particular to a novel double-suction pump with channel-type guide vanes. Background technique [0002] The existing double suction pump is mainly composed of bearing body 21, rolling bearing 22, mechanical seal gland 23, mechanical seal 24, shaft 25, impeller 26, pump body 27, pump cover 28, sealing body 29, bearing gland 20, etc. ( See attached Figure 1 ). Since the pump body extrusion chamber of the double-suction pump adopts a semi-spiral structure, and adopts mechanical seals and rolling bearings, it has the following disadvantages: Since the pump body extrusion chamber of the double-suction pump adopts a semi-spiral structure, in the pump Large radial force is generated during operation. Since the double-suction pump adopts mechanical seal 24 and rolling bearing 22, the shaft 25 is relatively long. , the deflection of the shaft is large, the mechanical seal is easily damaged, and it is easy to ...

Claims

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Application Information

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IPC IPC(8): F04D29/00F04D29/40F04D29/046
Inventor 张锡淼宋青松张新丰
Owner SHANGHAI LIANCHENG(GRP) CO LTD
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