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Core-pulling type submersible pump and mounting method thereof

A technology of submersible pumps and water pumps, which is applied to pump devices, non-variable pumps, components of pumping devices for elastic fluids, etc. It can solve problems such as difficult installation of submersible pumps and water pump caliber restrictions, and improve the unit Efficiency, efficiency improvement, long life effect

Inactive Publication Date: 2015-03-25
NINGBO JUSHEN PUMPS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that the diameter of the pump is limited during the reconstruction of the old pumping station. It is difficult to complete the installation of the submersible pump according to the installation steps of the existing technology without changing the civil engineering of the pumping station.

Method used

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  • Core-pulling type submersible pump and mounting method thereof
  • Core-pulling type submersible pump and mounting method thereof
  • Core-pulling type submersible pump and mounting method thereof

Examples

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Embodiment Construction

[0022] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as Figure 1-3 As shown, a core-pulling submersible pump includes a motor 1, a water pump, a planetary gear reduction mechanism 2 installed between the motor 1 and the water pump, and a shaft 5 for installing the submersible pump. The water pump includes a vane body 3 , the impeller 4 and the water-absorbing horn 9 with the guide cone 9.1, the guide vane body 3 is provided with an oil chamber 3.1, the diffusion angle α of the guide vane body 3 is 19°, and the outer surface of the oil chamber 3.1 The height difference h between the end face and the end face of the large diameter end of the guide vane body is 250 mm.

[0024] The guide vane body 3 is provided with an overflow cavity 3.2, and the outer peripheral wall of the inner circular platform of the guide vane body 3 is provided with a plurality of mechanical seal pressure relief holes 3....

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Abstract

The invention discloses a core-pulling type submersible pump, which comprises a motor (1), a water pump, a planetary gear reducing mechanism (2) arranged between the motor (1) and the water pump, and a shaft (5) for installation of the submersible pump, wherein the water pump comprises a guide vane body (3), an impeller (4) and a water sucking horn (9) with a flow guiding cone (9.1), the guide vane body (3) is provided with an oil chamber (3.1), a divergence angle (alpha) of the guide vane body (3) is 17-20 degrees, and a height difference (h) between an outer end face of the oil chamber (3.1) and an end face of a large-diameter end of the guide vane body (3) is 200-300mm. The core-pulling type submersible pump is high in efficiency, small in size, and low in transformation cost and can be mounted without changing a civil engineering structure.

Description

technical field [0001] The invention relates to the field of submersible pumps, in particular to a core-pulling submersible pump and an installation method thereof. Background technique [0002] In recent years, with the National Energy Conservation and Emission Reduction and the Ministry of Water Resources' "About Accelerating the National Old Pumping Station Renovation Plan", the old pumping stations that have been used for 30 to 50 years have entered a period of renovation and renovation. In the process of transformation, some pumping stations need to be expanded (for example: change the flow rate of the pumping station from 10 3 / s expand to 20 3 / s), and it is required that the civil structure of the pumping station cannot be changed. If the number of water pumps cannot be changed, the caliber of the water pumps must be enlarged accordingly, but if the caliber of the water pumps is enlarged, the overall dimensions of the water pumps will be correspondingly enlarged, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/08F04D29/44F04D29/60
Inventor 翟松茂李全民应建国应承辉林志龙张玉浩池焕明
Owner NINGBO JUSHEN PUMPS IND