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Draining pump

A drainage pump and pump body technology, which is applied in the direction of pumps, pump devices, and prevention of condensed water, can solve problems affecting head and flow, low head, complex structure of drainage pumps, etc., to reduce noise generation and reduce turbulent flow degree of effect

Active Publication Date: 2009-06-10
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the drainage pump is complex, because the disc is installed, which limits the working capacity of the drainage pump, affecting the lift and flow improvement; and most of these drainage pumps work in non-design conditions, such as low water level and low lift, high water level and low The lift often causes the drainage pump to run idling with water, so that the mixture of water and air moves repeatedly in the drainage pipeline and cannot be discharged, resulting in additional noise

Method used

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Embodiment Construction

[0022] As shown in the figure, the drainage pump includes a pump body 3 with a water inlet 1 at the lower end and a water outlet 2 at the upper side, an impeller 4 placed in the pump body, and a motor 5 that rotates the impeller 4. The cylindrical shape of the pump body 3 The center of the water inlet 1 is concentric with the center of the output shaft of the motor 5 . The middle part of the impeller 4 has a shaft joint 41 connected to the output shaft of the motor. The upper part of the impeller 4 has four main blades 42 arranged radially around the shaft joint 41. The adjacent main blades form an angle of 90 degrees. The main blades 42 is "Г" shape, and is made up of plate-like working part 421 and flow guide part 423, and both are connected as a whole with curved surface 422, and work part 421 height h is half of the height H of flow guide part 423. The distance between the outer edge of the guide part 424 and the opposite part 32 of the inner wall of the pump body is contr...

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Abstract

The invention relates to a discharge pump used in refrigeration system, which can overcome the defects of present discharge pumps which often depart from designed position, with lower efficiency and large noise. The invention comprises a pump which has an inlet at lower end and an outlet at upper part; a blade wheel inside the pump and a motor rotating the blade wheel. It is characterized in that: said blade wheels comprise main blades, short blades between nearby main blades, a stabilizing ring covering the upper edge of main blades and the outer edge of short blades, and an axial connection part connected with the output axle of motor. Wherein, the main and short blades are radial distributed with the center of the axes of axial connection part; the inner edge of main blade is connected to the axial connection part and the inner edge of short blade is distantly arranged from the axial connection part. The invention can improve the flux, the delivery lift, the flowing property and reduce the noise.

Description

technical field [0001] The present invention relates to a drain pump, specifically a drain pump installed in a drain tank for storing condensed water of an air conditioner to discharge the condensed water to the outside. Background technique [0002] For the indoor unit of the air conditioner, under the cooling condition, the water vapor in the air will condense into water when it is cold, so it is required to drain the generated condensed water to a suitable position in time with a drainage pump. This type of drainage pump requires a certain flow rate and At the same time, due to the strict requirements of the use environment on the noise of the air conditioning system, the working noise of this type of drainage pump must be limited within a certain range. A drainage pump disclosed in Chinese patent ZL 95107436.9 is composed of a pump body with a suction port at the lower end and a discharge port at the upper side, a rotating body rotatably accommodated in the pump body, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F24F13/22
Inventor 陈雨忠左公政李鹏周杨波
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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