BJL multi-channel modified line special air conditioner energy-saving centrifugal pump

A technology for centrifugal pumps and air conditioners, which is applied to non-variable volume pumps, components of pumping devices for elastic fluids, pumps, etc. It can improve the anti-cavitation performance, improve the comprehensive performance, and reduce the cavitation allowance.

Inactive Publication Date: 2007-12-19
海南南方特能泵业有限公司
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Problems solved by technology

[0004] In order to overcome the existing vertical centrifugal pump structure type and the vertical centrifugal pump where the water suction chamber and flow channel are located, the cavitation is large, the hydraulic efficiency is low, the disc loss efficiency is low, and the overall performance of the vertical centrifugal pump is not good. The invention provides a new type of vertical centrifugal pump structure, suction water chamber and flow channel

Method used

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  • BJL multi-channel modified line special air conditioner energy-saving centrifugal pump
  • BJL multi-channel modified line special air conditioner energy-saving centrifugal pump

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Embodiment Construction

[0011] The BJL multi-channel air-conditioning energy-saving centrifugal pump for changing lines provided by the present invention includes a motor 2, an impeller 3 and a water outlet chamber 1, and the front water inlet section 6 of the suction water chamber is a front and rear semicircle increasing spiral elbow different diameter suction water chamber flow. The entrance of the flow channel is low, and the flow channel of the rear water chamber is high, forming a slope of 3°~8°, which is conducive to the balanced acceleration of the liquid fluid in the flow channel of the water absorption chamber, thereby reducing the cavitation of the pump and improving the efficiency of the pump; At the rear of the suction water chamber, there is a straight tapered pipe flow channel 5 at the inlet of the impeller 3, which is used to increase the relative flow velocity of the liquid before the impeller inlet, and eliminate the pressure drop here, thereby improving the performance of the vertica...

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Abstract

The present invention discloses a BJL multichannel modified line special-purpose air-conditioning energy-saving centrifugal pump. Said centrifugal pump includes the following several portions: motor, blade wheel, water-discharging chamber, water-entering chamber, straight taper tube flow channel, conical water-dividing cone, curved flow-guiding rib and flow deflector, etc. said invention can raise cavitation resistance of vertical centrifugal pump, and can raise hydraulic efficiency of pump and its volume efficiency.

Description

technical field [0001] The invention relates to a vertical centrifugal pump. Background technique [0002] With the development of society, vertical centrifugal pumps are more and more widely used in various fields of the national economy, and the performance requirements for vertical centrifugal pumps are also increasing day by day. High head and efficiency, or a combination of the two forms, and secondly, new requirements are put forward for the material, structure and size of the vertical centrifugal pump, such as material saving, compact structure, relative uniformity of size, etc. , again, with the development of power machines and transmissions, the efficiency and speed of vertical centrifugal pumps have been improved, and higher requirements have been put forward for the reliability of vertical centrifugal pumps. In short, the design of vertical centrifugal pumps should be improved Efficiency, saving energy, improving the reliability of operation and extending the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/66
Inventor 袁力
Owner 海南南方特能泵业有限公司
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