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Vertical diagonal flow pump guide vane body and vertical diagonal flow pump

A vertical diagonal flow pump and guide vane body technology, applied in the field of water pumps and diagonal flow pumps, can solve the problems that the flow state of the impeller outlet cannot be perfectly matched, the operating efficiency cannot be further improved, and the performance of the pump system is affected, and the structure is simple , small radial size, and strong anti-cavitation properties

Pending Publication Date: 2022-05-17
宁波艾捷佩节能环保科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still deficiencies in this application. First, the capacity cannot be further expanded, and the operating efficiency cannot be further improved; second, the guide vane is arc-shaped. Although the structure is simple, it cannot perfectly match the flow state at the outlet of the impeller, resulting in a The loss is large, which in turn affects the performance of the entire pump system

Method used

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  • Vertical diagonal flow pump guide vane body and vertical diagonal flow pump
  • Vertical diagonal flow pump guide vane body and vertical diagonal flow pump
  • Vertical diagonal flow pump guide vane body and vertical diagonal flow pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1, such as figure 1 , figure 2 and image 3 As shown, the vertical diagonal flow pump in this embodiment includes a bell mouth 3, an impeller 2, an impeller chamber 4 and a guide vane body 1, the impeller 2 is arranged at the front end of the inner cylinder 11, and the bell mouth 3 is arranged at the front end of the outer cylinder 13, The bell mouth 3 is provided with a stabilizing plate 31 . The outer cylinder 13 is connected with the bell mouth 3 through the impeller chamber 4 .

[0030] combine Figure 4 As shown, the guide vane body includes an outer cylinder 13, an inner cylinder 11 and a plurality of guide vanes 12. The plurality of guide vanes 12 are arranged in the annular area between the inner wall of the outer cylinder 13 and the outer wall of the inner cylinder 11. The inner cylinder 11 is from the inlet end to the outlet. The end comprises the first inner cone 111, the inner straight 112 and the second inner cone 113 in turn, the inner straigh...

Embodiment 2

[0038] Example 2, such as Figure 6 with Figure 7 As shown, the impeller in this embodiment is a closed impeller, which specifically includes a hub 22, a plurality of blades 21 arranged on the hub 22, and a wheel cover 23 arranged on the outer periphery of the blades. Refer to Example 1 for other structures.

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Abstract

A vertical diagonal flow pump guide vane body comprises an outer cylinder, an inner cylinder and a plurality of guide vanes, the guide vanes are arranged in an annular area of the inner wall of the outer cylinder and the outer wall of the inner cylinder, and the vertical diagonal flow pump guide vane body is characterized in that the inner cylinder sequentially comprises a first inner conical cylinder, an inner straight cylinder and a second inner conical cylinder from an inlet end to an outlet end, the inner straight cylinder is cylindrical, two ends of the inner straight cylinder are respectively connected with the large-diameter end of the first inner conical cylinder and the large-diameter end of the second inner conical cylinder, and the guide blades are arranged between the outer wall of the inner straight cylinder and the inner wall of the outer cylinder. The invention further discloses the vertical diagonal flow pump. The arrangement of the first inner conical cylinder is beneficial to better completion of capacity expansion, the flow of an existing diagonal flow pump can be greatly improved, and the purpose of capacity expansion is achieved.

Description

technical field [0001] The invention relates to a water pump, in particular to a diagonal flow pump, which belongs to the field of fluid machinery. Background technique [0002] At present, energy saving, consumption reduction and carbon reduction are a major market demand in reality. According to statistics, in a typical thermal power plant, the power consumption of power mechanical equipment in the plant is as high as 7%-11% of the total power generated by the power plant, and the energy consumption of pump fluid mechanical equipment alone accounts for half of the total energy consumption. As mentioned above, the large-scale diagonal flow pump as the circulating water pump of the power plant is a big energy consumer, and its energy-saving expansion transformation is necessary and urgent. [0003] Diagonal flow pumps, also known as guide vane mixed flow pumps, are the result of an optimized combination of centrifugal pumps and axial flow pumps in terms of structure and per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/40F04D29/18F04D29/66
CPCF04D29/406F04D29/18F04D29/669Y02P80/10
Inventor 郝云志张春辉宋进平郭境忠王玮韩威惠斌斌杜永斌单国锋王大志张美凤刘佳林王少平
Owner 宁波艾捷佩节能环保科技有限公司