Spindle dry-type-running magnetic drive pump

A magnetic pump and spindle technology applied in the field of magnetic pumps to achieve low vibration, easy maintenance, and reduced processing difficulty and cost

Inactive Publication Date: 2014-02-26
丹东克隆先锋泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings are insufficient. First, the processing cost is increased. The installation of the sliding bearing and the opening of the cooling circuit make the structure complex and the processing cost is greatly increased. Second, because the sliding bearing is made of silicon carbide, it is a fragile part, which is prone to breakage during operation, resulting in downtime losses. , when transporting toxic media, the toxic liquid existing in the rotor system will cause trouble and unsafety for disassembly and maintenance

Method used

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  • Spindle dry-type-running magnetic drive pump
  • Spindle dry-type-running magnetic drive pump

Examples

Experimental program
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Embodiment Construction

[0009] specific implementation

[0010] The magnetic pump of the present invention includes a pump body 1, a pump cover 2, a main shaft 3, an impeller 4, an inner magnetic rotor 5, an isolating sleeve 6, an outer magnetic rotor 7, a connecting frame 8, and a bearing housing 9, and the isolating sleeve 6 and the connecting frame 8 are sealed and fixed Connection, which is characterized in that a shut-off sleeve 23 is provided between the shaft hole 2' of the pump cover 2 and the pump shaft 3, and a spiral groove 24 is opened on the outer ring surface of the shut-off sleeve 23, and the spiral groove 24 is formed in cooperation with the shaft hole of the pump cover 2 The spiral pumping ring reversely pumps the medium that enters the shaft hole 2' of the pump cover in the pump cavity. There is a stopper 20 at the port of the shaft hole 2' of the pump cover. Inside the stopper 20 Install the stainless steel rotary oil seal sealing ring device 28 that cooperates with the outer rin...

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Abstract

The invention relates to a spindle dry-type-running magnetic drive pump which comprises a pump body (1), a pump cover (2), a spindle (3), an impeller (4), an inner magnetic rotor (5), an isolating sleeve (6), an outer magnetic rotor (7) and a connecting frame (8). The spindle dry-type-running magnetic drive pump is characterized in that a shutoff sleeve (23) and a closed sealing ring device (28) are arranged between a shaft hole (2') of the pump cover and a pump shaft (3) for sealing, the pump shaft (3) and the connecting frame (8) are connected through rolling bearing devices (38a and 38b), an inert gas incoming hole (81) is formed in the connecting frame (8), and the isolating sleeve (6) is made of glass steel. The spindle dry-type-running magnetic drive pump is simple in structure and convenient to process, mount and maintain, application range of the pump is effectively widened, safety of the pump is effectively improved, and service life of the pump is effectively prolonged.

Description

technical field [0001] The invention relates to a magnetic pump, in particular to a magnetic pump whose main shaft operates under dry gas conditions. Background technique [0002] The magnetic pump includes pump body 1, pump cover 2, main shaft 3, impeller 4, inner magnetic rotor 5, spacer sleeve 6, outer magnetic rotor 7, connecting frame 8, bearing box 9, spacer sleeve 6 and pump cover 2 or connecting frame 8 Sealed and fixed connection, forming a sealed cavity to seal the pump shaft, preventing the medium from leaking from the pump shaft end, the inner magnetic rotor 5 installed on the main shaft 3 is in the isolation sleeve 6 and the outer magnetic rotor 7 outside the isolation sleeve 6 cooperates with the main shaft 3 turn. [0003] In the prior art, the main shaft and pump cover of the magnetic pump adopt silicon carbide sliding bearings. When the outer rotor drives the inner rotor to rotate, the high-intensity magnetic field existing between the inner and outer rotor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/10F04D7/06F04D7/04
Inventor 赵强杨德乾唐志坚吴立国仲崇明刘杰冷旭何德贵许斌滕朋李景涛窦文强佟有德
Owner 丹东克隆先锋泵业有限公司
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