Integrated automatic submersible draining pump
A submersible sand discharge pump and mining explosion-proof technology, which is applied in the field of pump machinery and equipment, can solve the problems of hidden safety hazards, low degree of automation, and inconvenient use, and achieve the advantages of convenient installation and use, improved automation, and safety and reliability. Effect
Inactive Publication Date: 2007-07-18
济南奔腾机械有限公司
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Problems solved by technology
At present, there are two ways to control the submersible sand discharge pump used for drainage: one is to use manual monitoring, and the operation of the submersible pump is started and stopped by a special person according to the level of the water level. high and inconvenient to use; the other is to use an external electric control box to control the start and stop of the pump. In this method, the electric control components mostly use electromagnetic contact control components, which have complex structure, short life, poor reliability and high failure rate; and Due to the methane and coal dust in the coal mine mining face and the air, the use of ordinary electric control boxes will bring certain hidden dangers to safety, and it is not suitable to use them in underground mines.
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[0011] As shown in Fig. 1, the integrated automatic mining explosion-proof submersible sand discharge pump of the present invention is a vertical structure, which successively includes an upper cover 16, a junction box body 12, a motor 11, a control housing 23, and a pump cover from top to bottom. 5. The pump body 4 and the pump base 1 are connected together by screws, and the joints are provided with sealing rings. The loam cake 16 is connected with suspension hook 14 with screw, so that hoisting. The middle part of junction box body 12 is provided with plate 17, and control box 13 is installed on the plate 17, and control box 13 is provided with non-contact power switch 26 (referring to Fig. The non-contact power switch 26 is electrically connected with the motor 11 . The motor 11 is the same as the structure of the existing submersible sand discharge pump, and also includes a casing, a stator winding and a rotor coil. The motor shaft 22 is housed in the rotor coil. Or whe...
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The integral automatic anti-explosion immersed sand-discharging pump for use in mine includes upper cover, connection box, motor, controlling casing, pump cap, pump body and pump seat. There are control box with contact-less power switch inside the connection box, thermosensitive element inside the motor, float switch and oil-water probe inside the controlling casing, impeller inside the pump body, oil chamber with lubricant oil inside the pump cap, and higher liquid level sensor and lower level sensor connected to the contact-less power switch. The present invention has the controller set inside the pump body integrally for convenient installation and use, can start and stop automatically based on the liquid level and can shut off automatically in case of fault or overheat motor. The present invention has automatic control and high safety and reliability.
Description
technical field [0001] The invention relates to a submersible electric pump and belongs to the technical field of pump mechanical equipment. Background technique [0002] Submersible sand discharge pumps are widely used in the construction of shafts and inclined shafts in coal mines, as well as drainage in coal mining working faces, bulk coal bins, and clean water bins. At present, there are two ways to control the submersible sand discharge pump used for drainage: one is to use manual monitoring, and the operation of the submersible pump is started and stopped by a special person according to the level of the water level. high and inconvenient to use; the other is to use an external electric control box to control the start and stop of the pump. In this method, the electric control components mostly use electromagnetic contact control components, which have complex structure, short life, poor reliability and high failure rate; and Due to the methane and coal dust in the mi...
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Inventor 谢经磊李瑞波彭诚王效良
Owner 济南奔腾机械有限公司