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Vertical pump for mine

A vertical pump, mining technology, applied in the field of explosion-proof sand discharge submersible pump, to achieve the effect of easy manufacture, simple structure and ideal safety effect

Active Publication Date: 2006-03-29
王庆武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Safety valve 31 preferably has sheath 32 outside

Method used

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  • Vertical pump for mine
  • Vertical pump for mine
  • Vertical pump for mine

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Figure 24, Figure 25, Figure 26 In the embodiment shown in a group of figures, mine vertical pump---the sand discharge submersible pump that prevents self-explosion has pump body 27, pump shaft 26, impeller 28 and motor, and its motor organic casing 21, upper end cover 22, The lower end cover 23 and the stator and rotor 24, the casing 21, the upper end cover 22 and the lower end cover 23 together form a closed motor chamber cavity 25, and a mechanical seal 49 is provided in the motor shaft hole. The motor chamber cavity 25 has a safety valve 31 with a one-way discharge hole 4 . The outer oil chamber 29 of the mechanical seal 49 of the motor shaft hole has a safety valve 31 with a one-way discharge hole 4 . The two safety valves 31 have sheaths 32 outside.

[0034] Figure 13 , Figure 14 , Figure 15 , Figure 22 , Figure 23 Among them, at the lower en...

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PUM

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Abstract

The invention is a mine vertical pump being as a self-explosion-proof sand-discharging submersible pump. A safety valve with the one-way discharge hole is disposed in the cavity of the motor chamber or in the mechanical sealed outer oil chamber of the axle hole. It's better for the safety valve to have a sheath. At one end of the safety valve a sleeve with the explosion-proof assembly can be put.

Description

technical field [0001] The invention relates to a mining vertical pump-a self-explosion-proof sand-discharging submersible pump, which is an amphibious sand-discharging submersible pump for both land and underwater use, and is suitable for the explosion-proof impurity submersible pump that transports solid abrasive particles in the liquid Or explosion-proof sand discharge submersible pump. Background technique [0002] The motor of the submersible pump is highly sealed. When removing impurities, its motor is prone to overheating and burning due to overload. Existing old-fashioned submersible pumps, the motor will explode by itself-like a heated pressure cooker will explode by itself. In order to prevent this kind of self-explosion, a safety pressure relief device is disclosed in the patent application 99113618.0: the safety pressure relief film 29 set on the lower opening 17 can burst in time to release the pressure when the pressure in the motor chamber rises abnormally. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/00F04D13/08
Inventor 王庆武
Owner 王庆武
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