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A water jet propulsion pump with adjustable operating conditions

A technology of water jet propulsion and operating conditions, applied in the field of hydraulic machinery, can solve the problems of affecting propulsion efficiency, unadjustable flow parameters, waste of energy, etc., and achieve the effects of improving propulsion efficiency, easy control, and stable operation

Active Publication Date: 2019-01-22
HEFEI AIDEWEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of operating conditions, the actual working state of the water jet propulsion pump with the traditional structure is an open working state, and its flow parameters cannot be adjusted, so that the water jet propulsion pump will always run at a working state with a relatively large flow rate, which not only wastes Energy also seriously affects the propulsion efficiency of the pump, which needs to be improved urgently

Method used

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  • A water jet propulsion pump with adjustable operating conditions
  • A water jet propulsion pump with adjustable operating conditions
  • A water jet propulsion pump with adjustable operating conditions

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Embodiment Construction

[0036] For ease of understanding, combined here Figure 1~4 The overall assembly components and working process of the water jet propulsion pump with adjustable operating conditions are described as follows:

[0037] Such as figure 1 , 2 As shown, a water jet propulsion pump with adjustable operating conditions includes a pump body. The pump body includes a pump casing 2 and a nozzle 5 that are fixedly connected to each other. The pump casing 2 is provided with a support for installing the pump shaft 9. Seat 1a, the pump shaft 9 is fixed in the support seat 1a through the bearing 10, the water inlet channel 1 is formed between the inner wall of the pump casing and the support seat 1a; the water inlet flow channel 1 is formed between the pump casing 2 and the support seat 1a There are rectifying plates 1b connected to each other at the water inlet; the water inlet of the water inlet channel 1 is arranged in an inclined shape relative to the axis of the pump shaft.

[0038] T...

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Abstract

The invention relates to the field of hydraulic machinery, in particular to an operation-condition-adjustable water-jet propulsion pump. The water-jet propulsion pump comprises a pump body, wherein an impeller which is fixed on a pump shaft is arranged in the pump body; the side, close to the outlet of the pump body, of the impeller is provided with a flow guiding component; and the position of the flow guiding component is adjustable along the water flow direction. A flow guiding component in a water-jet propulsion pump with a traditional structure is fixed, while according to the operation-condition-adjustable water-jet propulsion pump, the flow guiding component is innovatively arranged to be movable along the direction of the pump shaft, so that when the flow guiding component moves, the distance between the flow guiding component and the pump body, namely a nozzle changes, and therefore the flow parameter adjustment of the pump is realized; furthermore, when the flow guiding component is located at different axial positions, the distances between the flow guiding component and the pump body, namely the nozzle are different, so that control on operation parameters of the pump can be realized by adjusting the positions of the flow guiding components; and therefore, the pump operates at optimum working conditions, and the aim of improving the propulsion efficiency of the pump is finally achieved.

Description

technical field [0001] The invention relates to the field of hydraulic machinery, in particular to a water jet propulsion pump with adjustable operating conditions. Background technique [0002] The water-jet propulsion pump is a typical large-flow, low-lift pump type, which mainly moves the equipment forward through the reaction force generated by the jet water flow from the nozzle. The water jet propulsion pump has the characteristics of simple structure and light weight, and is widely used in the propulsion mechanisms of nuclear submarines, ships, torpedo missiles, underwater gliders and other devices. Due to the limitation of operating conditions, the actual working state of the water jet propulsion pump with the traditional structure is an open working state, and its flow parameters cannot be adjusted, so that the water jet propulsion pump will always run at a working state with a relatively large flow rate, which not only wastes Energy also seriously affects the propu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/56F04D15/00
CPCF04D15/0027F04D29/566F05D2270/62
Inventor 燕浩李跃
Owner HEFEI AIDEWEN TECH CO LTD
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